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Ketamine Infusion Combined With Magnesium as a Therapy for Intractable Chronic Cluster Headache: Report of Two Cases

Chronic cluster headache (CH) is a rare, highly disabling primary headache condition. As NMDA receptors are possibly overactive in CH, NMDA receptor antagonists, such as ketamine, could be of interest in patients with intractable CH.

Ketamine Infusion Combined With Magnesium as a Therapy for Intractable Chronic Cluster Headache: Report of Two Cases

September 1, 2017 by CHSG Admin

Authors: Xavier Moisset MD, PhD, Pierre Clavelou MD, PhD, Michel Lauxerois MD, Radhouane Dallel DDS, PhD, Pascale Picard MD
Source: Headache, Vol. 57, Issue 8, September 2017: 1261–1264. 

Abstract

Background

Chronic cluster headache (CH) is a rare, highly disabling primary headache condition. As NMDA receptors are possibly overactive in CH, NMDA receptor antagonists, such as ketamine, could be of interest in patients with intractable CH.

Case reports

Two Caucasian males, 28 and 45 years-old, with chronic intractable CH, received a single ketamine infusion (0.5 mg/kg over 2 h) combined with magnesium sulfate (3000 mg over 30 min) in an outpatient setting. This treatment led to a complete relief from symptoms (attack frequency and pain intensity) for one patient and partial relief (50%) for the other patient, for 6 weeks in both cases.

Conclusion

The NMDA receptor is a potential target for the treatment of chronic CH. Randomized, placebo-controlled studies are warranted to establish both safety and efficacy of such treatment.

Ketamine Infusions for Treatment Refractory Headache

December 27, 2016

Management of chronic migraine (CM) or new daily persistent headache (NDPH) in those who require aggressive outpatient and inpatient treatment is challenging. Ketamine has been suggested as a new treatment for this intractable population.

Ketamine Infusions for Treatment Refractory Headache

December 27, 2016 by CHSG Admin

Authors: Jared L. Pomeroy MD, MPH, Michael J. Marmura MD, Stephanie J. Nahas MD, MSEd, Eugene R. Viscusi MD
Source: Headache, Dec. 27, 2016

Abstract

Background

Management of chronic migraine (CM) or new daily persistent headache (NDPH) in those who require aggressive outpatient and inpatient treatment is challenging. Ketamine has been suggested as a new treatment for this intractablepopulation.

Methods

This is a retrospective review of 77 patients who underwent administration of intravenous, subanesthetic ketamine for CM or NDPH. All patients had previously failed aggressive outpatient and inpatient treatments. Records were reviewed for patients treated between January 2006 and December 2014.

Results

The mean headache pain rating using a 0-10 pain scale was an average of 7.1 at admission and 3.8 on discharge (P < .0001). The majority (55/77, 71.4%) of patients were classified as acute responders defined as at least 2-point improvement in headache pain at discharge. Some (15/77, 27.3%) acute responders maintained this benefit at their follow-up office visit but sustained response did not achieve statistical significance. The mean length of infusion was 4.8 days. Most patients tolerated ketamine well. A number of adverse events were observed, but very few were serious.

Conclusions

Subanesthetic ketamine infusions may be beneficial in individuals with CM or NDPH who have failed other aggressive treatments. Controlled trials may confirm this, and further studies may be useful in elucidating more robust benefit in a less refractory patient population.

Ketamine i. v. for the treatment of cluster headaches: An observational study

April 11, 2016

Cluster headaches have an incidence of 1–3 per 10,000 with a 2.5:1 male-to-female gender ratio. Although not life threatening, the impact of the attacks on the individual patient can result in tremendous pain and disability. The pathophysiology of the disease is unclear, but it is known that the hypothalamus, the brainstem, and genetic factors, such as the G1246A polymorphism, play a role. A distinction is made between episodic and chronic cluster headaches. In a controlled setting, we treated 29 patients with cluster headaches (13 with chronic cluster and 16 with the episodic form), who had been refractory to conventional treatments, with a low dose of ketamine (an NMDA receptor antagonist) i.v. over 40 min to one hour every 2 weeks or sooner for up to four times. It was observed that the attacks were completely aborted in 100 % of patients with episodic headaches and in 54 % of patients with chronic cluster headaches for a period of 3–18 months. We postulated neuroplastic brain repair and remodulation as possible mechanisms.

Safety and Efficacy of Prolonged Outpatient Ketamine Infusions for Neuropathic Pain

July 1, 2006

Ketamine has demonstrated usefulness as an analgesic to treat nonresponsive neuropathic pain; however, it is not widely administered to outpatients due to fear of such side effects as hallucinations and other cognitive disturbances. This retrospective chart review is the first research to study the safety and efficacy of prolonged low-dose, continuous intravenous (IV) or subcutaneous ketamine infusions in noncancer outpatients.

Ketamine has demonstrated usefulness as an analgesic to treat nonresponsive neuropathic pain; however, it is not widely administered to outpatients due to fear of such side effects as hallucinations and other cognitive disturbances. This retrospective chart review is the first research to study the safety and efficacy of prolonged low-dose, continuous intravenous (IV) or subcutaneous ketamine infusions in noncancer outpatients. Thirteen outpatients with neuropathic pain were administered low-dose IV or subcutaneous ketamine infusions for up to 8 weeks under close supervision by home health care personnel. Using the 10-point verbal analog score (VAS), 11 of 13 patients (85%) reported a decrease in pain from the start of infusion treatment to the end. Side effects were minimal and not severe enough to deter treatment. Prolonged analgesic doses of ketamine infusions were safe for the small sample studied. The results demonstrate that ketamine may provide a reasonable alternative treatment for nonresponsive neuropathic pain in ambulatory outpatients.

Intranasal Ketamine for the Relief of Cluster Headache

Ketamine’s Mechanism of Action

Ketamine (2-chlorophenyl)-2-(methylamino)-cyclohexanone hydrochloride), a human and veterinary anesthetic agent, has an extremely varied set of pharmacologic actions depending on the dosage used.1 A selective uncompetitive N-Methyl-D-aspartic acid (NMDA) glutamate receptor antagonist, the drug has been in legitimate clinical use since 1963.

When administered as an appropriate pharmacologic agent, ketamine has been shown to serve as a safe anesthetic agent. At sub-anesthetic doses, ketamine acts as an uncompetitive antagonist at ionotropic NMDA-type glutamate receptors, binding to a site on the receptor while it is open. Ionotropic glutamate receptors (iGluRs) mediate the majority of excitatory neurotransmission throughout the mammalian brain. Based on their pharmacology, there are three main classes of glutamate-activated channels:

  • α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs)
  • kainate receptors
  • N-methyl-d-aspartate receptors (NMDAR).

Among ion-gated receptor subtypes (iGluRs), NMDAR are exceptional in their high unitary conductance, high Ca2+ permeability, and remarkably slow gating kinetics.

Ketamine has relatively specific effects on other glutamate subtypes. Several families of these receptors also include AMPA-type and kainate receptors, and the metabotropic family of receptors, of which many exist. NMDARs, in particular, are glutamate-gated ion channels primarily for calcium ions and are crucial for neuronal communication. NMDARs form tetrameric complexes that consist of several subunits. The subunit composition of NMDARs is subject to many changes, resulting in large numbers of receptor subtypes. Each subtype has distinct pharmacological and signaling properties.1 Interest and research is growing and abounds in defining specific functions of subtypes of the glutamate receptor system in both normal and pathological conditions in the central nervous system.

Clinical use of ketamine has led to reports of psychedelic side effects, such as hallucinations, memory defects, panic attacks, as well as nausea/vomiting, somnolence, cardiovascular stimulation and, in a minority of patients, hepatoxicity.In the author’s clinical experience, patients may feel a temporary sense of calm or fogginess after ketamine infusion.

Use in Migraine, Cluster Headache, and Neuropathic Pain Disorders

In more recent years, a very small number of clinicians, including the author, have used ketamine intravenously (IV), and in some cases, via intramuscular injection, to treat migraine, cluster headache, and various other chronic pain disorders, including mixed headache and neuropathic pain clinical syndromes.3-21 In the author’s clinic specifically, ketamine has been used via IV administration for more than 20 years to treat nearly 1,000 patients with various headache and pain disorders. These include: migraine and cluster headache flare-ups; headaches associated with orofacial pain disorders, such as trigeminal neuralgia (TN); atypical face pain; temporomandibular joint disorder (TMD); and neck pain.

Clinical use of ketamine has led to reports of psychedelic side effects, such as hallucinations, memory defects, panic attacks, as well as nausea/vomiting, somnolence, cardiovascular stimulation and, in a minority of patients, hepatoxicity. In the author’s clinical experience, patients may feel a temporary sense of calm or fogginess after a ketamine infusion.

The focus of this paper is to provide a summary of specific retrospective cases in which intranasal ketamine was used for the rescue of cluster headache in patients who had previously experienced a positive outcome from IV ketamine in the author’s outpatient clinic. Cluster headache was successfully eradicated in several patients [n = 17], prompting a mini anecdotal-based trial of rescue intranasal ketamine for continuing or new cluster headache flare-ups to be used by these patients at their home. Table I outlines the outpatient clinic’s treatment of various migraine and headache types. As shown, cluster headache was successfully eradicated in several patients [n = 17], prompting a mini anecdotal-based trial of rescue intranasal ketamine for continuing or new cluster headache flare-ups to be used by these patients at their home.

Retrospective Case Summaries

The dose of intranasal ketamine prescribed to patients ranged between 7.5 mg and 15 mg per 0.1 cc nasal spray (75 and 150 mg of ketamine per cc compounded in normal saline by a pharmacy). Patients were instructed to use one spray in the nostril of the affected side and wait 10 to 15 minutes to feel any effects, including side effects. They were to use the spray when they felt a cluster attack coming on. Patients were asked to use another spray of ketamine in the same nostril at 10- to 15-minute intervals until a sufficient degree of relief (at least 60 to 75%) was obtained for that cluster attack. If the attack still came on after about one hour, the instructions were for the patient to repeat the procedure. All patients were instructed not to drive after taking the medication and signed off on this agreement. Patients were also instructed to keep the nasal spray refrigerated when not in use; no efficacy loss was reported. Of the 17 patients who trialed the nasal spray, 11 elected not to have the intranasal ketamine compounded, or were lost to follow-up, leaving six case scenarios which are summarized herein.

Case 1

A 38-year-old male, with a 16-year history of cluster headache, including a family history of the same, had tried a number of acute and prophylactic agents with, at best, a shortening of the cluster episode. His attacks tended to flare in the spring and lasted up to three months at a time with 4 to 6 episodes per day. The attacks prevented him from working and he came to the outpatient clinic for IV treatment with ketamine, which resulted in a complete cessation after three days, with resolution of allodynia on the right side as well. He elected to try intranasal ketamine (15 mg) at the first onset of his next cluster episode. He reported pain relief and a feeling of calm after 2 to 3 sprays, with no adverse effects. Sometimes, he had to repeat the dosing regimen the next day.

Case 2

A 25-year-old woman was thrown from a horse during a competition and fractured her cervical spine, requiring surgery. The injury included syringomyelia between C3 and C7-T1 and left her with left-sided dystonia of the upper and lower body, abdomen, and chest wall, together with left-sided migraines, which she reported as new. Several times a year, she would awaken every night with left-sided cluster headache episodes, with facial allodynia, tearing, eyelid drooping, and increased dystonia and neck spasm; these occurred primarily in the winter season, with several up to six episodes in per night for a period of three to six weeks.

IV ketamine relieved most of her dystonic, cluster headache, and migraine symptoms, when complemented by IV and oral baclofen and tizanidine, as well as rescue opioids. Nasal spray ketamine was compounded, as well as buccal troches; both allowed her to continue working full-time in her hair salon. She reported no side effects while using the nasal spray ketamine. Liver function tests conducted every three to six months were unremarkable.

Cluster headache is characterized by excruciating, debilitating pain lasting from 15 to 180 minutes, or occasionally longer. The pain is typically located around or through one eye or on the temple. (Source: 123RF)

Case 3

A 55-year-old woman with episodic cluster headache and migraine (3 to 4 attacks per week) also experienced chronic neck pain and had diagnosed TN on the right side. Her cluster headache attacks started at age 27, with tearing, allodynia, and facial numbness. On occasion, her migraine would evolve into a cluster episode that came on during sleep and was seasonal as well, lasting about 2 months on average. She was not a smoker and had no family history of cluster headache but did have a family history of migraine.

She was treated successfully for migraine, right TN, and neck pain with botulinum toxin-A injections (Botox) every 3 to 5 months, supplemented by prophylactic neuropathically active medications, but no opioids. The Botox did not affect her cluster headache, except when they evolved from a migraine, and only to a slight extent (15 to 20%). Multiple acute and prophylactic therapies were attempted to resolve the cluster headache episodes to no significant avail.

IV ketamine was tried on one occasion over a period of 4 days during a cluster headache episode. As a result, the attacks were reduced from 5 per day to 1 per day, and only 1 cluster attack the following week, which was resolved with additional oral oxcarbazepine (600 mg).

The patient agreed to trial nasal spray ketamine which was compounded at 10 mg per 0.1 cc spray with the suggestion that she spray the right nostril every 10 to 15 minutes upon attack to give the medicine time to absorb from the nasal mucosa and to repeat the process until at least 75% relief was obtained. She reported being happy with this approach as it gave her control of her hardest-to-treat symptom. She also reported that her cluster episodes became less frequent over about 1 year and that her migraine and TN also improved; her Botox injection intervals grew longer over time.

Case 4

A 70-old-male, with a 40-plus year history of right-sided cluster attacks with eyelid drooping, tearing, allodynia, neck pain, and other symptoms was treated for these symptoms for many years. Opioids provided him with partial relief, at best. He had a chronic cluster headache that typically awoke him from a sound sleep at 1 or 2 am. These episodes were especially bad in the winter and during weather changes. He had a history of facial and other traumas before the headaches started, including a car accident, but no family history of cluster headache. He also had occasional migraine, about three per month, as well as chronic neck and back pain. He was treated with IV medications, including ketamine, up to 200 mg over 5 hours, with relief of his symptoms in the clinic.

He agreed to trial a compounded nasal spray of ketamine [12.5 mg per 0.1 cc] to use at each bedtime. Two sprays were indicated before each bedtime and at the first onset of any cluster headache at night. Sprays were repeated every 10 minutes until 50 to 65% relief was achieved. He took tizanidine before bedtime for neck spasm and sleep. The patient would, on occasion, repeat one or two ketamine sprays in the morning or during the day if he felt the next cluster attack coming on. As he was on frequent IV and nasal spray ketamine, his liver functions tests were routinely monitored over the course of several years; there was no observed impact.

Case 5

A 34-year-old male who worked in construction began having episodic cluster headache episodes at age 22. He had a family history of migraine and cluster headache. His attacks were season-specific, occurring mostly in the early summer of each or every other year. He described the attacks as very disabling and often awoke from a sound sleep for several weeks at a time as a result of them. He had tried several oral medications, including opioids, for suppression of symptoms without any real benefit and many side effects. When he first presented to the clinic, he trialed IV lidocaine, IV valproate sodium, and IV magnesium sulfate with only partial success in shutting down the episode.

IV ketamine was also offered at the beginning of one of his episodes, and it proved to work more effectively than other treatments. Specifically, the patient’s cluster episode duration was reduced by more than two-thirds (6 to 7 weeks to 7 to 10 days). Based on this result, he was prescribed compounded nasal spray ketamine (7.5 mg per 0.1cc spray) and instructed to use the spray once at bedtime, with additional sprays in one nostril (the affected side of the cluster headache) every 10 minutes until relief was obtained to at least 75%. The patient was also instructed to use the same approach during the day if the cluster headache returned. He used nasal spray ketamine for several years and his overall pattern became easier to treat successfully. His episodes grew further apart and he has reported only one short cluster headache episode in the past four years.

She got extinction of the cluster episode or at least 75% reductions in the cluster headache severity with up to 4-5 nasal sprays of ketamine at the dose described above, and has also noticed a shortening and diminution of the cluster headache episodes as time has gone by.

Case 6

A 51-year-old male, with a family history of cluster headache began having episodic attacks at age 18 with strong occurrences in the spring. He was a smoker. He had tried a calcium channel blocker, lithium, and other medications to little or no avail over the years. He found that triptans taken early in the course of a cluster attack, at several doses, would sometimes abort or lighten the burden of that particular cluster series.

A 3-day course of IV ketamine at the onset of one of his episodes nearly eradicated the episode, and since he lived a great distance (6 hours each way) from the clinic, he wanted to try the nasal spray form of ketamine for at-home application. He reported that a daily dose of 1500 mg of Depakote-ER often softened the arrival of his next cluster headache episode, as did prescribed triptans. However, he did not experience an end to the attack until IV ketamine had been administered.

15 mg per 0.1cc of nasal spray ketamine were compounded for this patient. He reported some nasal burning with the nasal ketamine formulation, so was advised by his pharmacist to use one drop of 2% lidocaine and orange oil as part of the prescription. This addition alleviated the side effect. The patient has successfully used this approach for many years to date. He requires 5 to 6 nasal sprays of ketamine per day, and his episodic cluster headache pattern has markedly softened and shortened in the past few years. He has reduced his dosage of Depakote-ER to 1 or 2 per day as well and attempted to stop smoking several times.

Discussion and Recommendation

The specificity of the ketamine speaks to a unique mechanism of action primarily through the blockade of the NMDA-glutamate and other close-related receptors. This treatment approach may provide insight into the distinctive involvement of this receptor family in the generation and maintenance of this and perhaps other, more rare trigeminal autonomic cephalalgias, or TACs.21

Based on this anecdotal evidence, observed retrospectively in the author’s outpatient clinic over a period of 20 years, intranasal ketamine seems to offer a legitimate, safe pharmacologic treatment for cluster headache rescue. The medication adds a new dimension to managing out-of-control cluster headache and mixed headache/pain disorders in an outpatient setting with no monitoring. Double-blind, placebo-controlled studies are needed to confirm these primarily open-label observations. It should be noted that a small number of patients (5) were given sham nasal treatment and their cluster headache did not respond.

The author found sub-anesthetic doses of intranasal ketamine to be very useful in the control of episodic and chronic cluster headache attacks, as well as in managing certain trigeminal neuralgia symptoms. On a 0 to 10 visual analog scale, pain scores were below 60 to 65% from initial baseline pain score after the use of the intranasal ketamine spray. Efficacy, as well as safety, and tolerability, of low dose IV ketamine were seen consistently in the outpatient clinic, without significant adverse effects. In the author’s opinion, therefore, ketamine may be considered when treating this clinically disabling condition. When used under controlled conditions, ketamine in a nasal spray form may offer a safe and more effective option to patients than emergency room visits and may also serve as a substitute for more standard IV-based rescue cluster headache medications.

About Cluster Headache:Cluster headache is characterized by excruciating, debilitating pain lasting from 15 to 180 minutes, or occasionally longer. The pain is typically located around or through one eye or on the temple. A series of cluster headaches can take place over several weeks to months, and may occur once or twice per year. Several of the following related symptoms may occur: lacrimation, nasal congestion, rhinorrhea, conjunctival injection, ptosis, miosis of the pupil, or forehead and facial sweating. Nausea, bradycardia and general perspiration may present as well. Attacks usually recur on the same side of the head. Cluster headaches afflict males more than females by a 2.5 to 1 ratio and have an overall prevalence of 0.4%. Onset of clusters is usually between ages 20 and 45. There is often no family history of cluster headache.

  1. Robert K, Simon C. Pharmacology and Physiology in Anesthetic Practice. 4th ed. Baltimore, MD: Lippincott, Williams & Wilkins; 2005
  2. Niesters M, Martini C, Dahan A. Ketamine for chronic pain: risks and benefits. Br J Clin Phamacol. 2014;77(2):357–367.
  3. Virginia Scott-Krusz, Jeanne Belanger, RN, Jane Cagle, LVN, Krusz, JC, Effectiveness of IV therapy in the headache clinic for refractory migraine, poster at 9th EFNS meeting Athens, Greece. 2005.
  4. Krusz, JC. Intravenous treatment of chronic daily headaches in the outpatient headache clinic. Curr Pain Headache Rep. 2006;10(1):47-53.
  5. Krusz JC, Cagle J, Belanger J, Scott-Krusz, V. Effectiveness of IV therapy for pain in the clinic, Poster P183 presented at 2nd International Congress on Neuropathic Pain Berlin, Germany. 2007
  6. Krusz JC, Cagle J, Hall S. Efficacy of IV ketamine to treat pain disorders in the pain clinic, (poster 216). J Pain. 27th Annual Scientific. American Pain Society, 2008.
  7. Krusz JC, Cagle J, Hall S. Efficacy of IV ketamine in treating refractory migraines in the clinic (poster 218). J Pain. 27th Annual Scientific. American Pain Society, 2008.
  8. Krusz JC, Cagle J, Hall S. Intramuscular (IM) ketamine for treating headache and pain flare-ups in the clinic (poster 219). J Pain. 27th Annual Scientific. American Pain Society, 2008.
  9. Krusz JC. IV ketamine in the clinic to treat Cluster Headache (poster abstract). American Academy of Neurology. Neurol. 2009;72(11):A89-90.
  10. Krusz JC, Cagle J, Scott-Krusz VB. Ketamine for treating multiple types of headaches (poster). 14th Congress International Headache Society. Cephalalgia. 2009;29(Suppl 1)163.
  11. Krusz JC. Difficult Migraine Patient. Pract Pain Manage. 2011;11(4):16.
  12. Krusz JC, Cagle J. IV Ketamine: Rapid Treatment for All TAC Subtypes in the Clinic, Abstract Poster #72, 15th Congress of the International Headache Society, Berlin, Germany, 2011.
  13. Krusz JC, Cagle J. IM ketamine for intractable headaches and migraines (poster abstract). American Headache Society Annual Meeting, Los Angeles, CA, 2012.
  14. Krusz JC. Traumatic Brain Injury: Treatment of Post-traumatic Headaches. Pract Pain Manage. 2013;13(5):57-68.
  15. Krusz JC, Cagle J, Belanger J, Scott-Krusz V. Effectiveness of IV therapy for pain in the clinic, Poster P183. European J Pain:11, Suppl 1, pS80, presented at 2nd Int’l Congress on Neuropathic Pain, Berlin, Germany. 2007.
  16. Krusz JC, Cagle J, Hall S. Efficacy of IV ketamine to treat pain disorders in the pain clinic, (poster 216). J Pain, 9: Suppl 2, P30, 27th Annual Scientific. American Pain Society. 2008.
  17. Krusz JC. Ketamine IV in an outpatient setting: effective treatment for neuropathic pain syndromes (poster #378). 32nd Annual Scientific Meeting, American Pain Society, New Orleans, 2013.
  18. Krusz JC. Ketamine IV – for CRPS, TN/TMD and other neuropathic pain in the outpatient clinic (poster #524). 4th International Congress on Neuropathic Pain, Toronto, Ontario, 2013.
  19. Krusz JC. The IV ketamine experience: treatment of migraines, headaches and TAC. JAMA Neurol. 2018
  20. Matharu MS, Goadsby PJ. Trigeminal Autonomic Cephalalgias: Diagnosis and Management. In: Silberstein SD, Lipton RB, Dodick DW, eds. Wolff’s Headache and Other Head Pain. 8th ed. New York, NY: Oxford Univ Press; 2008:379-430.
  21. Johnson JW, Glasgow NG, Povysheva NV. Recent insights into the mode of action of memantine and ketamine. Curr Opin Pharmacol. 2015 ;20:54-63. 

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703-844-0184 | NORTHERN VIRGINIA KETAMINE CENTER FOR DEPRESSION | NOVA HEALTH RECOVERY | Esketamine Virginia | Intranasal Ketamine for depression : BMJ | SPRAVATO CENTER OF FAIRFAX | INTRANSAL KETAMINE CENTER | 22304 22306 | Fairfax, Va | Reston Virginia Ketamine Infusion Center | Ketamine Doctor near me | Loudoun County Ketamine| 22201 | Arlington Ketamine Center

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Ketamine could be first of new generation of rapid acting antidepressants, say experts

Ketamine is the first truly new pharmacological approach to treating depression in the past 50 years and could herald a new generation of rapid acting antidepressants, researchers have predicted.

“We haven’t had anything really new for about 50 or 60 years,” said Allan Young, professor of mood disorders at the Institute of Psychiatry, Psychology and Neuroscience at King’s College, London, at a briefing on 12 July at London’s Science Media Centre.

Most of the new launches have been “tinkering with drugs which were really discovered in the ’50s and ’60s,” he explained. “Even the famous Prozac, which came in in the late ’80s, is really just a refinement of the tricyclic antidepressants that came in the ’50s. People say we are still in the age of steam, and we need to go to the next technological advance.”

Slow onset

In the past few years the focus has fallen on ketamine, which is used for pain relief and anaesthesia but is better known for being a horse sedative and a “club drug” that can induce hallucinations and calmness. It has been found to have rapid antidepressant effects and to be effective in many patients with treatment resistant depression.

US clinics increasingly offer IV infusions of ketamine off label, and in March esketamine, a nasal ketamine based drug, was approved by the US Food and Drug Administration for treatment resistant depression,1 at a cost of £32 400 (€36 060; $40 615) per patient per year.

Carlos Zarate, chief of the Experimental Therapeutics and Pathophysiology Branch at the US National Institute of Mental Health, who has been a key figure in the discovery and evaluation of ketamine as an antidepressant, said that one of the main problems with current antidepressants was their speed of onset in terms of antidepressant and anti-suicidal effects.

He explained that it took 10-14 weeks to see significant improvement with monoaminergic based antidepressants. “In my mind that is too slow,” he said. “We are focusing on treatments that can produce results within hours. That is where we are heading with the next generation of antidepressant, and ketamine is now the prototype for future generation antidepressants which will have rapid, robust antidepressant effects—rapid within a few hours.”

Efficacy and tolerability

Zarate said that, besides correcting chemical imbalances of serotonin and norepinephrine, the new generation of ketamine based antidepressants had other effects such as enhancing plasticity and restoring the synapses and dendrite circuits that shrivel in depression.

When ketamine is given to patients it binds to the N-methyl-D-aspartate (NMDA) receptor, causing a series of transient side effects including decreased awareness of the environment, vivid dreams, and problems in communicating. But the half life of ketamine is only two to three hours, so these side effects quickly subside, whereas the therapeutic effects of the drug last seven days or longer.

Zarate’s team is now focusing on the 24 metabolites of ketamine to hone the drug’s efficacy and tolerability. One of these, hydroxynorketamine, has already been shown to have similar antidepressive effects to ketamine in animals, without the side effects, and it is due to be tested in patients this autumn.

“Ketamine may actually be a prodrug for hydroxynorketamine,” said Zarate.

High cost

A few dozen patients with treatment resistant depression have been treated with ketamine in UK trials, and the European Medicines Agency and the Medicines and Healthcare Products Regulatory Agency are due to reach a decision on authorising esketamine for marketing in October. If the drug is approved private clinics will be able to provide it. But it would be unlikely to be available through the NHS until at least 2020, if at all, as the National Institute for Health and Care Excellence would need to deem it cost effective.

Rupert McShane, consultant psychiatrist and associate professor at the University of Oxford, said that, as well as the likely high cost of esketamine, patients treated with it must be observed in a clinic for two hours after each administration. This would require substantial clinical time, as esketamine is given twice a week for the first month, once a week for the second month, and once a week or once a fortnight from then on.

McShane also recommended that, if approved, a multidrug registry should be set up to monitor the long term safety and effectiveness of ketamine based drugs. Patients would be asked to input their use of any prescribed ketamine, esketamine, or any other future ketamine based product, as well as any self medication with illicit ketamine.

References


    1. Silberner J
    . Ketamine should be available for treatment resistant depression, says FDA panel. BMJ2019;364:l858.doi:10.1136/bmj.l858 pmid:30796014FREE Full TextGoogle Scholar

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Long known as a party drug, ketamine now used for depression, but concerns remain

What Makes the Ketamine-Based Drug for Depression So Different?

On Tuesday (March 5), the U.S. Food and Drug Administration (FDA) approved a ketamine-like nasal spray for patients with depression who haven’t responded to other treatments.

But what makes this newly approved treatment so different?

The drug, called Spravato and made by Janssen Pharmaceuticals, contains the active ingredient esketamine. This substance has the same molecular formula as ketamine but a different chemical structure. (In other words, it contains the same type and number of elements but in a different configuration.) Ketamine is typically used as an anesthetic, but it’s also been used as an illicit party drug.

One reason experts are excited about the nasal spray is that its effects can be seen within several hours to days. Other antidepressants, meanwhile, can take weeks to start working

Antidepressants work by regrowing brain cells and the connections between them, and ketamine appears to have the same effects, said David Olson, an assistant professor of chemistry, biochemistry and molecular medicine at the University of California, Davis. But, these effects likely start much sooner than with other antidepressants, he said.

Still, it’s not entirely clear how the drug works.

Ketamine-like drugs are “dirty”, meaning they likely hit a variety of targets in the brain, Olson told Live Science. “There are a lot of very interesting hypotheses out there, [and] many of them are probably partially valid.”

One idea is that ketamine treats depression by blocking a neurotransmitter called glutamate from binding to the NMDA receptor, and stopping signals from cascading across the brain, Dr. Alan Schatzberg, a professor of psychiatry and behavioral sciences at the Stanford University School of Medicine, told Live Science.

Glutamate is a chemical that brain cells use to send signals to other brain cells. But high levels of it can cause over-excitement in the brain, which can, in turn, damage brain cells.

A more controversial idea is that ketamine binds to opioid receptors, causing a release of naturally occurring opioids in the body. Schatzberg and his team published a small study on this last summer in which they gave patients with depression ketamine twice — once after receiving an opioid-blocking drug, and once after receiving a placebo in place of the opioid blocker. The two treatments took place about a month apart, and neither the participants nor the researchers knew whether patients received the opioid blocker or the placebo. The study found that the patients responded well to the ketamine treatment if they didn’t receive the opioid-blocking drug, but ketamine had no effect on those that did, suggesting an opioid-like role.

This hypothesis has some experts concerned about ketamine-based drugs as a depression treatment.

“My concern about this compound is that it is a disguised form of opiates,” said Dr. Mark George, a distinguished professor of psychiatry, radiology and neurosciences at the Medical University of South Carolina. While George said he is “overjoyed” for the prospect of a new treatment option, “I’m alarmed that there is pretty clear evidence [that] the way ketamine works is through the opioid system.”

If this is the mechanism that ketamine acts through to treat depression, its effects won’t last and people might develop a tolerance to the drug, possibly even becoming addicted, George told Live Science. But if its antidepressant effects come from other mechanisms, such as blocking the NMDA receptor, then “that’s good,” he said.

Olson, however, said that he is less convinced by the opioid hypothesis and thinks more work needs to be done before ringing the alarm bells.

What’s more, the new drug will see limited use. The medication comes with a risk of sedation and dissociation, such as difficulty with judgment, attention and thinking. Because of that, the nasal spray was approved to be used only under a “restricted distribution system,” according to a statement from the FDA.

This means that only patients with severe depression who haven’t responded to at least two antidepressant treatments can receive the drug. In addition, the treatment is administered only in doctor’s offices, and patients must stay in the office and be monitored for several hours after receiving the treatment.

Ultimately, despite some potential problems with the newly approved drug, experts are hopeful it will come through strong.

“I think that the FDA approval of ketamine is a huge landmark in the history of treating neuropsychiatric diseases,” Olson said. “Ketamine really represents a leap forward in terms of new ideas for attacking depression and related neuropsychiatric diseases.”



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Listening to ketamine

The fast-acting drug offers a new way to treat depression and fathom its origins. Recent approval of a nasal spray promises to expand access, but much remains unknown about long-term use and the potential for abuse.

t 32, Raquel Bennett was looking for a reason to live. She’d struggled with severe depression for more than a decade, trying multiple antidepressants and years of talk therapy. The treatment helped, but not enough to make it seem worth living with a debilitating mental illness, she says. “I was desperate.”

In 2002, following a friend’s suggestion, Bennett received an injection of ketamine, an anesthetic and psychedelic party drug also known as Special K. During her first ketamine trip, Bennett hallucinated that God inserted a giant golden key into her ear, turning on her brain. “It was as if I was living in a dark house and suddenly the lights came on,” she says. “Suddenly everything seemed illuminated.”

The drug lifted Bennett’s depression and dispelled her thoughts of suicide within minutes. The effect lasted for several months, and, she says, the respite saved her life. She was fascinated by the drug’s rapid effects and went on to earn a doctoral degree in psychology, writing her dissertation about ketamine. Today, she works at a clinic in Berkeley, California, that specializes in using ketamine to treat depression. “This medicine works differently and better than any other medication I’ve tried,” she says.

When Bennett experimented with ketamine, the notion of using a psychedelic rave drug for depression was still decidedly fringe. Since the first clinical trials in the early 2000s, however, dozens of studies have shown that a low dose of ketamine delivered via IV can relieve the symptoms of depression, including thoughts of suicide, within hours.

Even a low dose can have intense side effects, such as the sensation of being outside one’s body, vivid hallucinations, confusion and nausea. The antidepressant effects of ketamine typically don’t last more than a week or two. But the drug appears to work where no others have — in the roughly 30 percent of people with major depression who, like Bennett, don’t respond to other treatments. It also works fast, a major advantage for suicidal patients who can’t wait weeks for traditional antidepressants to kick in.

Infographic shows the relatively small percentage of people who suffer from depression who may be helped by ketamine, according to clinical studies. Of the 17 million people in the US estimated to suffer from depression, only 10 million receive treatment. Half of those are helped by that treatment, with only about a third experiencing full recovery. Treatment-resistant patients have severe disease and don’t respond to current medications. Studies suggest that about 60 percent of this group may find relief with ketamine.

“When you prescribe Prozac, you have to convince people that it’s worth taking a medication for several weeks,” says John Krystal, a psychiatrist and neuroscientist at Yale University in New Haven, Connecticut. “With ketamine, patients may feel better that day, or by the next morning.”

The buzz around ketamine can drown out just how little is known about the drug. In the April 2017 JAMA Psychiatry, the American Psychiatric Association published an analysis of the evidence for ketamine treatment noting that there are few published data on the safety of repeated use, although studies of ketamine abusers — who typically use much higher doses — show that the drug can cause memory loss and bladder damage. Most clinical trials of the low dose used for depression have looked at only a single dose, following up on patients for just a week or two, so scientists don’t know if it’s safe to take the drug repeatedly over long periods. But that’s exactly what might be necessary to keep depression at bay.

The analysis also warned about ketamine’s well-established potential for abuse. Used recreationally, large doses of the drug are known to be addictive — there’s some evidence that ketamine can bind to opioid receptors, raising alarms that even low doses could lead to dependence.

Bennett has now been receiving regular ketamine injections for 17 years, with few negative side effects, she says. She doesn’t consider herself addicted to ketamine because she feels no desire to take it between scheduled appointments. But she does feel dependent on the drug, in the same way that a person with high blood pressure takes medication for hypertension, she says.

Still, she acknowledges what most clinicians and researchers contend: There simply aren’t enough data to know what the optimal dose for depression is, who is most likely to benefit from ketamine treatment and what long-term treatment should look like. “There’s a lot that we don’t know about how to use this tool,” Bennett says. “What’s the best dose? What’s the best route of administration? How frequently do you give ketamine treatment? What does maintenance look like? Is it OK to use this in an ongoing way?”

Despite the unknowns, pharmaceutical companies have been racing to bring the first ketamine-based antidepressant to market. In March, the US Food and Drug Administration approved a ketamine-derived nasal spray, esketamine, developed by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson. Only two of Janssen’s five phase III trials had shown a benefit greater than taking a placebo. Still, in February an independent panel recommended FDA approval. That makes ketamine the first novel depression drug to hit the market in more than 50 years, notes Carlos Zarate Jr, a psychiatrist who studies mood disorder therapies at the National Institute of Mental Health.

Photo shows the mechanized assembly line at Janssen Pharmaceutical as bottles of Spravato, the esketamine nasal spray are manufactured.
Although clinicians are hopeful that Janssen Pharmaceutical’s newly approved esketamine nasal spray, Spravato, will expand access to treatment, many also worry about the drug’s potential for abuse.CREDIT: JANSSEN PHARMACEUTICALS, INC.

Thousands of people are already flocking to private clinics like Bennett’s, which provide intravenous ketamine infusions. Because the drug was approved in the 1970s as an anesthetic, physicians can legally provide the drug as an “off-label” depression treatment. Many ketamine clinics have long waiting lists or are so swamped that they aren’t accepting new patients, and Janssen’s nasal spray could rapidly expand access to treatment.

But some researchers worry that the nasal spray won’t solve many of ketamine’s problems and could create new ones. Although the FDA is requiring that the nasal spray be administered only in a certified doctor’s office or clinic, esketamine is “every bit as habit forming as regular ketamine,” and will be difficult to keep out of the hands of abusers, says Scott Thompson, a neuroscientist at the University of Maryland and a coauthor with Zarate of a 2019 review on fast-acting antidepressants in the Annual Review of Pharmacology and Toxicology. A nasal spray can’t deliver as precise a dose as an IV infusion, Thompson notes. “If someone has got a cold, they’re not going to get the same dose.”

Scott Thompson of the University of Maryland discusses how ketamine is changing the landscape of the psychiatric treatment of severe depression.

CREDIT: VIDEO PRODUCED BY HUNNI MEDIA FOR KNOWABLE

In Thompson’s view, esketamine holds few advantages over generic ketamine, which costs less than a dollar per dose, although the IV infusions in private clinics often cost hundreds of dollars per visit. Janssen has indicated that each esketamine treatment will range from $590 to $885, not including the costs of administration and observation.

Zarate and others are still thrilled to see big pharma investing in ketamine, after decades of stalled efforts to find new psychiatric drugs. “As esketamine hits the market, venture capitalists will come up with better versions and move the field forward,” Zarate says. Several drug companies are now testing other ketamine-like compounds in hopes of developing drugs that have its potent antidepressant potential without its psychedelic and dissociative side effects.

Illustration shows a high-tech version of a neural network, with signals represented as lights. Depression, many now think, is caused by problems in the neural circuitry.

Depression, fast and slow

In 2001, writer Andrew Solomon published a haunting description of the depression that derailed his early 30s: “If one imagines a soul of iron that weathers with grief and rusts with mild depression, then major depression is the startling collapse of a whole structure,” he wrote.

When Solomon first fell ill, in the 1990s, many clinicians and researchers presumed that the pathological brain changes underlying depression were inherently slow to repair. This mind-set was rooted in the modest but controversial success of a class of slow-acting drugs that includes Prozac.

Developed in the 1950s, the drugs were first inspired by the chance observation that a hypertension drug called reserpine – an extract of the plant Rauwolfia serpentina, or devil pepper — made people intensely depressed. After discovering that reserpine depletes monoamine neurotransmitters in the brain, including serotonin and norepinephrine, scientists hypothesized that low neurotransmitter levels causedepression. They went on to develop monoaminergic antidepressants, drugs designed to increase circulating levels of these chemicals in the brain.

Today, monoaminergic antidepressants include selective serotonin reuptake inhibitors (SSRIs) such as Prozac, Lexapro and Zoloft, as well as the older and less commonly prescribed monoamine oxidase inhibitors (MAOIs) and tricyclic and tetracyclic antidepressants. Scientists have long debated whether the drugs work at all, but the most comprehensive study to date — published in The Lancet in 2018 — suggests that they do lower depression symptoms in about 60 percent of depressed people, albeit only modestly more than taking a placebo.

The benefits start to show up only after several weeks of treatment, however, and roughly a third of people with major depression disorder – called treatment-resistant patients — don’t respond to at least two types of monoaminergic antidepressant.

By the early 2000s, the monoamine hypothesis had unraveled. This was partly due to the antidepressants’ mediocre performance in patients, and partly to experiments which showed that depleting neurotransmitter levels in healthy people does not make people depressed. Scientists now believe that drugs like Prozac do not directly treat depression’s root cause. Instead, they think the drugs work via an indirect mechanism to subtly boost the growth of synapses and the birth of new neurons, and that this somehow relieves symptoms.

Solomon’s bleak metaphor of corrosion was at least partly grounded in science. Many scientists now agree that depression slowly eats away at the neural pathways underlying our sense of worth and well-being, our desire to go to the movies or get out of bed. But research into ketamine holds out new hope that — unlike rusted iron — the depressed brain can be restored, by repairing and strengthening the neural circuits that regulate mood. —Emily Underwood

Some researchers are also testing whether ketamine works for conditions beyond depression, such as obsessive-compulsive disorder, as well as in specific subsets of patients, such as severely depressed teenagers. Other scientists are using ketamine to help untangle one of the biggest mysteries in neuroscience: What causes depression? (See sidebar.)

Seeking answers in neural wiring

Thirty years ago, the prevailing thought was that low levels of certain brain chemicals, such as serotonin, caused depression. Boosting those could remove symptoms.

“I felt that depression needed months or weeks of treatment — that the plastic changes involved in the healing process would require weeks to reset themselves,” says Todd Gould, a neuropharmacologist at the University of Maryland and a coauthor of the recent review paper. But ketamine’s speed of action casts doubt on that idea.

Newer evidence suggests that depression is caused by problems in the neural circuits that regulate mood, Gould notes. Much of the evidence for this faulty-wiring hypothesis comes from rodents. Starting in the 1990s, scientists began to discover intriguing abnormalities in the brains of mice and rats that had been exposed to certain stressors, such as bullying by a big, aggressive male.

Stress and trauma are strong predictors of depression in people, but scientists can’t ask rats or mice if they are depressed. Instead, they use behavioral tests for classic depression symptoms such as anhedonia, the inability to take joy in pleasurable activities, Thompson says. Depressed animals “give up easily” in experiments that test their willingness to work for rewards like sugar water, or their interest in the intoxicating scent of a potential mate’s urine. “They can’t be bothered to cross the cage,” he says.

Thompson and others have found that there are fewer connections, or synapses, between neurons that communicate reward signals in the brain in depressed animals. Other labs have found shriveled connections in neuronal circuits key to decision-making, attention and memory. Brain imaging studies in people with depression have also revealed abnormal activity in neural circuits that regulate emotion, suggesting that the findings in rodents may also apply to humans.

If faulty neural connections are to blame for depression, the next question is, “How do we get atrophied neural pathways to regrow?” Krystal says.

Circuit training

The answer, many scientists now believe, is the brain’s most abundant neurotransmitter, glutamate.

Glutamate is the workhorse of the brain. It relays fleeting thoughts and feelings, and enables the formation of memories by strengthening synaptic connections. Glutamate is the reason you can still ride a bike years after you learned, even if you never practiced.

Not all glutamate activity is good. Too much can cause the equivalent of an electrical storm in the brain — a seizure — and chronically high levels may lead to dementia. Abnormalities in glutamate receptors — specialized proteins on the surface of brain cells where glutamate can dock and bind — are linked to a wide array of psychiatric diseases, including depression and schizophrenia.

To maintain balance, cells called inhibitory interneurons act like brakes, releasing a neurotransmitter called GABA that quiets brain activity. Most mind-altering drugs work by changing the balance between GABA and glutamate — amphetamines and PCP enhance glutamate signaling, for example, while alcohol inhibits glutamate and boosts GABA.

By the 1990s, scientists had discovered that ketamine triggers a gush of glutamate in the brain’s prefrontal cortex. This region governs attention and plays an important role in emotional regulation. The out-of-body sensations that some people experience when they take ketamine may occur because this rapid release of glutamate “excites the heck out of a whole bunch of neurons” in the prefrontal cortex, says Bita Moghaddam, a neuroscientist at Oregon Health & Science University who discovered the drug’s glutamate-revving effect on rats while studying schizophrenia.

Scientists aren’t sure yet how ketamine forms stronger neural circuits. But the hypothesis goes roughly like this: When ketamine enters the brain, it causes a short-term burst of neuronal activity that triggers a series of biochemical reactions that create stronger, more plentiful synaptic connections between brain cells.

At first, many researchers thought ketamine’s antidepressant effects relied on a structure located on the surface of neurons, called the NMDA receptor. Like a key that fits into different locks, ketamine can bind to several types of NMDA receptor, making neurons release the excitatory glutamate neurotransmitter.

This hypothesis suffered a blow, however, when several drugs designed to bind to the NMDA receptor (as ketamine does) failed in clinical trials for depression.

A space-filling ribbon model shows the 3-D structure of the NMDA receptor, which binds glutamate in the brain and is thought to play a key role in the symptoms of depression.
Central to the controversy over how ketamine works in the brain is the NMDA receptor (illustrated here), which binds to the neurotransmitter glutamate. Some scientists believe ketamine’s antidepressant effects hinge on its ability to block NMDA receptors, but others believe the drug works via other mechanisms. Resolving that mystery is key to developing similar drugs with fewer side effects, scientists say.CREDIT: FURUKAWA LAB, CSHL

Esketamine also complicates the story. Ketamine is made up of two molecules that form mirror images of each other, R- and S-ketamine. Esketamine is made up of just the S form and binds roughly four times as effectively as R-ketamine to the NMDA receptor. Despite acting much more powerfully on the NMDA receptor, studies in rodents suggest that S-ketamine is a less potent antidepressant than R-ketamine, although it’s not yet clear whether or not R-ketamine could work better in humans.

Zarate and others now believe ketamine may work through a different receptor that binds glutamate, called AMPA. By pinpointing which receptor ketamine acts on, researchers hope to develop a similar drug with fewer side effects. One hot lead is a compound called hydroxynorketamine (HNK) — a metabolic byproduct of ketamine that does not affect NMDA receptors but still produces rapid antidepressant effects in rodents. The drug appears to lack ketamine’s disorienting side effects, and Zarate and Gould plan to launch the first small clinical trials to establish HNK’s safety in humans this year, likely in around 70 people. “I think we have a very good drug candidate,” Gould says. (Zarate and Gould, among others, have disclosed that they are listed on patents for HNK, so they stand to share in any future royalties received by their employers.)

Plastic synaptic remodelers

To alter how the brain processes mood, scientists believe ketamine must ultimately change synapses. In experiments in rodents, Ron Duman of Yale University has shown that both ketamine and HNK can harness one of the brain’s most important tools for synaptic remodeling: brain-derived neurotrophic factor, or BDNF.

BDNF is a protein intimately involved in shaping synapses during brain development and throughout the lifespan. Healthy brain function depends on having just the right amount of BDNF in the right place at the right time. Many mental illnesses, including depression, are associated with low or abnormal amounts of the protein. For example, samples of brain tissue from people who have died by suicide often contain abnormally low amounts of BDNF.

Duman and colleagues have found that both ketamine and HNK cause a sharp uptick in the amount of BDNF that is released from neurons. This increase is required for the drugs’ antidepressant effects, and for the increase in dendritic spines — the stubby protrusions that form synaptic connections with other neurons. Both ketamine and HNK also seem to reduce inflammation, which has been linked repeatedly to the stress-induced loss of synapses.

A micrograph of a portion of a rat neuron, in false colors, shows how ketamine coaxes the budding of new dendritic spines from the neuron. In a control, two dendritic spines are visible. In the ketamine-treated neuron, six dendritic spines are visible
Ketamine strengthens connections between brain cells. Compared with a control, a rat neuron (red) treated with ketamine has grown more dendritic spines (shown by yellow arrows).CREDIT: R.J. LIU, G. AGHAJANIAN & R. DUMAN

Ketamine is not the only compound that can induce rapid synaptic plasticity: Other psychedelics, such as ecstasy (MDMA), acid (LSD), and DMT also trigger similar structural changes in neurons and rapid antidepressant effects in rodents, researchers at the University of California at Davis recently found. The effects don’t hinge on getting high, the team reported in March in ACS Chemical Neuroscience. Even very small doses — too low to cause perceptual distortions — can increase synapse density and lift depression.

Traditional antidepressants such as Prozac also increase BDNF levels in the brain, but not nearly as fast as ketamine does, Duman says. That is why most antidepressants take so long to remodel synapses and relieve depression symptoms, he says.

Dissecting depression

Beyond promising new treatments, Zarate and other researchers see ketamine as a powerful tool for probing depression’s tangled neurobiology. Studies in mice and rats are a good start, but scientists need to study the drug in people to truly understand how ketamine affects the brain. Unlike traditional, slower-acting antidepressants, ketamine lends itself to short-term lab experiments.

Zarate is using neuroimaging tools such as fMRI to study the human brain on ketamine. Past studies have shown that in people with depression, communication among several key brain networks is disrupted. One network, called the default-mode network (DMN), is involved in self-referential thoughts such as ruminating about one’s problems or flaws. This network tends to be hyperactive in people with depression, and less connected to more outwardly attuned brain networks such as the salience network, which helps the brain notice and respond to its surroundings.

Before and after images show averaged brain activity of people with treatment-resistant major depression while their index finger is stroked. Before an infusion of ketamine, the patients show some activity in the front of the brain. After ketamine, the activity is more widespread and the intense, as shown in false colors on the image of the brain, and representing enhanced cortical excitability.
Ketamine appears to strengthen connections between neural networks in people with severe depression. In a study comparing neural activity prior to a ketamine infusion (left) and six to nine hours after an infusion (right), a single dose made the brain more responsive to a simple sensory stimulus, the light stroking of a finger.

In one recent study, Zarate and his colleagues found that after receiving an IV dose of ketamine, people with depression had more normal activity in the default mode network, and that it was better connected to the salience network. At least temporarily, the drug seems to help people get unstuck from patterns of brain activity associated with repetitive, negative thoughts. Zarate does caution that the study results need to be replicated.

The team has also used brain imaging to study how ketamine affects suicidal thoughts. About four hours after an infusion of ketamine, a chunk of the prefrontal cortex that is hyperactive in people with depression had calmed down, researchers found, which correlated with people reporting fewer thoughts of suicide.

Ketamine also seems to tune other brain regions that are key to effective treatment. Last year, scientists published a study in mice showing that ketamine quiets abnormal activity in the lateral habenula, a small nodule wedged deep under the cortex. Some researchers have described the lateral habenula as the brain’s “disappointment center.” The region is responsible for learning from negative experiences, and is hyperactive in people with depression, as if “broadcasting negative feelings and thoughts,” Thompson says.

Such studies remain exploratory. As to why ketamine works — and just as important, why its effects are transient — scientists are still speculating. “I think ketamine is resetting neural circuits in a way that improves the symptoms of depression, but the risk factors — whether genetic, environmental or other risk factors — are still present,” Gould says. “It seems to help reset things temporarily, but the underlying cause is not necessarily resolved.”

Helen Mayberg, a neurologist at Mount Sinai Hospital in New York who specializes in using an experimental procedure called deep brain stimulation to treat depression, suggests that ketamine may be like using a defibrillator on someone experiencing cardiac arrhythmia. “I am not addressing the fact that you have underlying heart disease, but now that your arrhythmia is gone, I can concentrate on other treatments.”

It’s important to put the potential risks of ketamine into perspective, particularly for people contemplating suicide, researchers emphasize. Most people are willing to tolerate severe side effects for other life-saving treatments, such as cancer drugs, Mayberg points out. “If you can interrupt an extreme suicidal plan and ideation, I’ll take that.”

Ketamine in teens?

For Krystal, weighing ketamine’s still largely uncharted risks and potential rewards ultimately comes down to a deeply personal question: “What would we want for ourselves? For our families? Do we want them to have to go through several failed trials over several months, or even a year, before taking a medication that might make their depression better in 24 hours?”

Some of the hardest decisions are likely to involve children and adolescents. Hospitalization for youth suicide attempts and ideation nearly doubled between 2008 and 2015, leaving many clinicians — and parents — desperate for more effective and rapid treatments. Left untreated, depression is “really bad for the brain” and can cause serious, long-term cognitive and developmental problems when it starts young, Zarate says. “The question is, is that going to be better than the long-term side effects of ketamine?”

Untreated depression is really bad for the brain, especially in the young. The question is, is that going to be better than the long-term side effects of ketamine?

Scientists don’t yet know. Ketamine has been deemed safe to use as an anesthetic in children, but there aren’t yet sufficient clinical data to show how low, repeated doses of ketamine used for depression could affect the developing brain.

On a more fundamental level, scientists don’t fully understand the neurobiology of adolescent depression, notes psychiatrist Kathryn Cullen of the University of Minnesota. It may involve abnormalities in brain development, such as the way the prefrontal cortex connects to brain regions that process emotion, but “we don’t know if the brain connection abnormalities emerge because of toxic stress induced by depression, or if these abnormalities predispose people to develop depression, or if depression itself reflects abnormal development,” Cullen says. “It’s critical to figure out how to alleviate the biological changes that are associated with [teen] depression so that the brain can get back on a healthy trajectory.”

Two recent clinical trials — one at Yale and another at Minnesota run by Cullen — have found that ketamine can lower symptoms in severely depressed teenagers, but neither study was set up to follow the teenagers long-term, says Cullen. Janssen is currently running a trial of its esketamine nasal spray with 145 youths who are suicidal, but the results of that study have not been published yet. Cullen thinks ketamine has potential for use in teens, particularly to avoid suicide, but “there are still a lot of unknowns.”

Not just a quick fix

Worldwide, depression afflicts more than 300 million people, making it the leading global cause of disability. When contemplating such overwhelming misery, the vision of a world in which depression can be cured with a single injection or squirt of nasal spray holds obvious appeal.

A photo shows a woman as she receives an infusion of the drug ketamine during a 45-minute session at an outpatient clinic in Chicago on July 25, 2018. She struggled with depression and anxiety and made several suicide attempts before starting ketamine treatments earlier in the year.
Thousands of private clinics in the United States, such as this outpatient clinic in Chicago, are offering repeated ketamine treatment off-label for depression and suicidal thoughts, but the drug’s effects are temporary and scientists still don’t know whether taking the drug over long periods is safe.CREDIT: AP PHOTO / TERESA CRAWFORD

But — despite the hype — that is not what ketamine offers, Bennett says. Based on her own experience as a patient, and her clinical work, she is troubled by the framing of ketamine as a “rapid” depression treatment if that precludes the slower, more effortful process of psychotherapy. Without psychotherapy, she says, “you’re not giving patients any tools to help themselves, just making them dependent on a molecule that has temporary effects. When the effect wears off, they have to go back for more medicine. This is going to be lucrative for the pharmaceutical company but probably not in the patient’s best interest.”

In Bennett’s clinic, ketamine is administered only alongside talk therapy, which she uses to prepare patients before they take ketamine, and afterward to help them process the experience. “I think this is the only ethical way” to administer a drug that can trigger disorienting psychedelic experiences, she says. “This isn’t a ‘take two and call me in the morning’ situation.”

There’s growing scientific interest in whether ketamine can enhance the effectiveness of therapy by increasing the brain’s ability to remodel circuits through experience, Krystal notes. And in 2017 a small Yale study found that providing cognitive behavioral therapy in tandem with ketamine can extend the drug’s antidepressant effects.

Unlike some researchers and pharmaceutical companies, which consider ketamine’s and esketamine’s hallucinogenic side effects inherently negative, Bennett thinks that for some people the visions can be positive — particularly in the context of therapy. There’s scant scientific evidence to support the idea that such hallucinations are therapeutic, and they can be deeply disturbing for some people. (If people who experience hallucinations do better, it may simply be because they have received a higher dose of ketamine, Krystal points out.)

Still, Bennett thinks researchers and clinicians need to stay open-minded about why ketamine is helping people — and be more attentive to the settings in which ketamine and esketamine are administered. “People consistently report that they experience the presence of God, or their own sacredness,” she says. “When someone comes to my office wanting to kill themselves, ready to die — and then they have a transformational moment where they believe their life is sacred — it’s indescribable how exciting that is as a clinician.”

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

Twitter feed Ketamine – Ablow

Ketamine Seems to Ease Depression. We’ll Soon See What Else It Does.

Clinical trials are not enough to prove any drug is safe and effective – especially one that could be as widely used as Johnson & Johnson’s depression drug esketamine, a slightly altered form of the street drug ketamine. The FDA approval process is a balancing act, weighing safety and efficacy testing against the need to get potentially life-saving drugs out as soon as possible.

An advisory panel to the FDA decided this month that the benefits outweigh the risks, and approval is expected soon. But scientists who study depression say there’s a lot more to learn about esketamine’s long-term effects.

While best known as a recreational drug, ketamine has been used since the 1970s as an anesthetic, in doses much higher than what’s likely to be given to depression patients. The trials so far seem to show that the drug is not highly addictive, according to a story in the medical website STAT. But time will tell.

The most promising clinical trials followed people whose depression had been resistant to conventional therapy. Fifty percent of patients improved when given conventional therapy plus a placebo, as compared to 70 percent who got conventional therapy and esketamine.

Taking the drug will be a lot more complicated than taking Prozac. It’s been formulated so that it can be delivered as a nasal spray, but people have to get the drug at a doctor’s office, and they won’t be allowed to drive for at least 24 hours, said Gerard Sanacora, a Yale University psychiatrist who has been involved in the clinical trials.

He said he believes there’s potential for benefit, because the drug works for some people who get no relief from conventional treatments and because works faster, which might even prevent suicide. But there’s a lot more to learn about the drug’s potential long-term consequences. So far it looks like people will get two treatments a week to start, then one for maintenance. But scientists don’t know whether it can be tapered down further, or discontinued, and whether there’s a risk for relapse, he said.

Sanacora said that ketamine is based on a very different model of how depression works. Standard therapy is based on the principle that depression is a chemical imbalance involving the transmitting chemical serotonin. But an alternative view started to take shape in the 1990s that depression was more of a problem with the connections between neurons, triggered by chronic stress and mediated by something called the glutaminergic system.

Because ketamine interacts with this system, researchers started testing it as a depression drug. Although it seems effective, there’s still no agreement on how depression actually works – and there is some concern that it might work very differently in different patients.

Ketamine can affect cardiovascular health, and in the short term can cause patients to lose their sense of their bodies’ position in space – the sense of proprioception. They sometimes feel their arms are floating.

That hasn’t stopped people from flocking to clinics to get treated with IV ketamine infusions for depression and other problems. This is legal because the drug is approved for anesthesia, and prescribers can use it off-label for other purposes. An investigation by the medical website STAT raised concerns that clinic staff didn’t have the necessary expertise, and there was considerable marketing hype in many cases. The infusions cost between $350 and $1,000 each, and can go on for five or six treatments.

Another red flag popped up last week when the Boston Globe ran a storyabout three women who claim to have been sexually abused by psychiatrist Keith Ablow – a frequent commentator for Fox News. The Globe reported that Ablow was treating the women with ketamine, and one expert cited in the lawsuits said a patient had become “very dependent on this medication and dependent on Dr. Ablow to supply it.”

Ablow’s Twitter feed is full of positive stories about ketamine in places such as Reader’s Digest, followed by a phone number to call for a “free ketamine screening.” The allegations illustration that it’s not just patients that will need to be tracked for abuse, but the doctors as well.

On the positive side, FDA approval would give patients who want the drug a standardized treatment that would be covered by many insurance plans. Approval also creates an opportunity to collect data on longer-term use. (An earlier column exploring the promise of big data in medicine points out that clinical trials are often not long-running enough or big enough to catch even deadly side effects.)

Yale’s Sanacora thinks of the next series of trials as Phase 4. Sanacora also brought up what he poignantly called the “Flowers for Algernon” effect, referring to the short story in which the main character, Charlie Gordon, is treated for an intellectual disability. The treatment works, but eventually wears off, leaving Charlie back where he started. The disappointment makes for a tragic tale. An arc like this would be the last thing depression patients need – though if no other treatment is helping, it might be a risk worth taking.

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

Ketamine Works as a Fast-Acting Antidepressant, But the Full Effects Are Still Unknown

Ketamine Works as a Fast-Acting Antidepressant, But the Full Effects Are Still Unknown

etamine leads something of a double life, straddling the line between medical science and party drug. Since it’s invention in the early 1960s, ketamine has enjoyed a quiet existence as a veterinary and pediatric anesthetic given in high doses. But in a second, wilder life, ketamine’s effects at lower doses—a profound sense of dissociation from self and body—became an illicit favorite among psychedelic enthusiasts. Pioneering neuroscientist John Lilly, who famously attempted to facilitate communication between humans and dolphins, used the drug in the late 1970s during experiments in sensory deprivation tanks. By the 1990s, the drug had made its way to the dance floor as “special K.”

More recently, ketamine has taken on a third, wholly unexpected role. Since the early 2000s, the drug has been studied as a uniquely powerful medication for treating severe depression and obsessive-compulsive disorder (OCD). When given as an intravenous infusion, ketamine can lift symptoms of depression and OCD from patients who fail to respond to common antidepressants like Prozac and even resist treatments like electroconvulsive therapy (ECT).

Exactly how ketamine produces antidepressant effects remains unclear, however. Antidepressants like Prozac are Serotonin Reuptake Inhibitors (SSRIs) that increase levels of the neurotransmitter serotonin in the brain, which is believed to boost mood. Ketamine’s main mechanism of action to produce dissociative anesthetic effects, on the other hand, depends on another neurotransmitter, glutamate.

“The prevailing hypothesis for ketamine’s antidepressant effect is that it blocks a receptor (or docking port) for glutamate,” says Carolyn Rodriguez, a professor of psychiatry at Stanford who has conducted some of the pioneering research into ketamine as an OCD treatment.

However, new research suggests that ketamine’s influence on glutamate receptors, and specifically the NMDA receptor, may not be the sole cause of its antidepressant effects. According to a recent study in the American Journal of Psychiatry by Rodriguez and her Stanford colleagues, ketamine might also activate a third system in the brain: opioid receptors.

Ketamine is known to bind weakly to the mu opioid receptor, acting as an agonist to produce a physiological response at the same site in the brain where narcotics like morphine exert their influence. It’s also known that opioids can have antidepressant effects, says Alan Schatzberg, a professor of psychiatry at Stanford and co-author of the new study.

It never made sense to Schatzberg that ketamine’s antidepressant effects were a result of blocking the glutamate receptors, as attempts to use other glutamate-blocking drugs as antidepressants have largely failed. The Stanford psychiatrist, who has spent his career studying depression, wondered if researchers were unknowingly activating opioid receptors with ketamine.

“You could test this by using an antagonist of the opioid system to see if you blocked the effect in people who are ketamine responders,” he says. “And that’s what we did.”

The researchers enlisted 12 subjects with treatment-resistant depression and gave them either an infusion of ketamine preceded by a placebo, or ketamine preceded by a dose of naltrexone, an opioid receptor blocker. Of those, seven subjects responded to the ketamine with placebo, “and it was very dramatic,” Schatzberg says, with depression lifting by the next day. “But in the other condition, they showed no effect,” suggesting it was the opioid receptor activity, not blocking glutamate receptors, that was responsible.

While opioid blockers prevented ketamine from activating the associated receptors, it did not block the drugs dissociative effects, suggesting dissociation alone won’t affect depression. “It’s not that, ‘hey, we’ll get you a little weird and you’ll get the effect,’” Schatzberg says.

The appeal of ketamine’s use as an antidepressant is clear enough. While more typical antidepressants may require six to eight weeks to produce benefits, ketamine works within hours.

“Our patients are asked to hang in there until the medication and talk therapy takes effect,” says Carlos Zarate, chief of the experimental therapeutics and pathophysiology branch of the National Institute of Mental Health (NIMH) who was not associated with the new study. While waiting for traditional treatments to kick in, patients “may lose their friends or even attempt suicide.”

But the study linking ketamine to opioid activity means an extra dose of caution is required. While ketamine acts quickly, the anti-depressive effects of the drug only last for a few days to a week, meaning repeat doses would be needed in practice. Researchers and clinicians should consider the risk of addiction in long-term use, Schatzberg says. “You’re going to eventually get into some form of tolerance I think, and that’s not good.”

However, the new finding is based on just seven subjects, and it still needs to be replicated by other scientists, says Yale professor of psychiatry Greg Sanacora, who was not involved in the new study. And even if the trial is replicated, it would not prove ketamine’s opioid activity is responsible for its antidepressant effects.

“It doesn’t show that at all,” says Sanacora, who studies glutamate, mood disorders and ketamine. “It shows that the opioid system needs to be functioning in order to get this response.”

Sanacora compares the new study to using antibiotics to treat an ear infection. If you administered an additional drug that blocks absorption of antibiotics in the stomach, you would block treatment of the ear infection, but you wouldn’t conclude that antibiotics fight ear infections through stomach absorption—you just need a normally functioning stomach to allow the antibiotic to do its job. Similarly, opioid receptors might need to be functioning normally for ketamine to produce antidepressant effects, even if opioid activity is not directly responsible for those effects.

Complicating matters further, placebos often cause patients to experience less pain, but opioid blockers like naltrexone have been shown to prevent this response, according to Sanacora. It could be, he suggests, that all the apparatus of the clinic—the nursing staff, the equipment—exerted a placebo effect that is mediated by the brain’s opioid system, and the patients who received naltrexone simply did not respond to that placebo effect

“That’s a very important and powerful tool that is in all of medicine, not just in psychiatry,” Sanacora says. “And we know that the opiate system is involved, to some extent, in that type of response.”

It’s also possible, the researchers note in the paper, that ketamine’s action at the glutamate receptor is still important. “Ketamine acts in three distinct phases—rapid effects, sustained effects and return to baseline,” Rodriguez says. Opioid signaling may turn out to mediate ketamine’s rapid effects, while “the glutamate system may be responsible for the sustaining effects after ketamine is metabolized.”

One interpretation is that ketamine blocks glutamate receptors on neurons that are inhibitory, meaning they signal other neurons to fire fewer signals. By blocking these neurons from firing, ketamine may enhance glutamate activity in the rest of the brain, producing anti-depressive effects that persist after the opioid activity dies down.

“The reality is it’s in a gray zone,” Sanacora says. “This is just one small piece of a very large puzzle or concern that we really need to look at the data in total.”

That data is forthcoming. Results from a Janssen Pharmaceuticals clinical trial using esketamine, an isomer of ketamine, and involving hundreds of subjects will soon become public, according to Sanacora, who has consulted for the company. And at NIMH, Zarate and colleagues are studying hydroxynorketamine, a metabolite of ketamine that may provide the same benefits but without the dissociative side effects

Ketamine Works as a Fast-Acting Antidepressant, But the Full Effects Are Still Unknown

A new study suggests that ketamine activates the brain’s opioid receptors, complicating its use to treat clinical depression

Ketamine Syringe
Ketamine syringe, 10mg held by a healthcare professional. (Peter Cripps / Alamy Stock Photo)

By Jon KelveySEPTEMBER 11, 2018777110231.1K

Ketamine leads something of a double life, straddling the line between medical science and party drug. Since it’s invention in the early 1960s, ketamine has enjoyed a quiet existence as a veterinary and pediatric anesthetic given in high doses. But in a second, wilder life, ketamine’s effects at lower doses—a profound sense of dissociation from self and body—became an illicit favorite among psychedelic enthusiasts. Pioneering neuroscientist John Lilly, who famously attempted to facilitate communication between humans and dolphins, used the drug in the late 1970s during experiments in sensory deprivation tanks. By the 1990s, the drug had made its way to the dance floor as “special K.”

More recently, ketamine has taken on a third, wholly unexpected role. Since the early 2000s, the drug has been studied as a uniquely powerful medication for treating severe depression and obsessive-compulsive disorder (OCD). When given as an intravenous infusion, ketamine can lift symptoms of depression and OCD from patients who fail to respond to common antidepressants like Prozac and even resist treatments like electroconvulsive therapy (ECT).

Exactly how ketamine produces antidepressant effects remains unclear, however. Antidepressants like Prozac are Serotonin Reuptake Inhibitors (SSRIs) that increase levels of the neurotransmitter serotonin in the brain, which is believed to boost mood. Ketamine’s main mechanism of action to produce dissociative anesthetic effects, on the other hand, depends on another neurotransmitter, glutamate.

“The prevailing hypothesis for ketamine’s antidepressant effect is that it blocks a receptor (or docking port) for glutamate,” says Carolyn Rodriguez, a professor of psychiatry at Stanford who has conducted some of the pioneering research into ketamine as an OCD treatment.

However, new research suggests that ketamine’s influence on glutamate receptors, and specifically the NMDA receptor, may not be the sole cause of its antidepressant effects. According to a recent study in the American Journal of Psychiatry by Rodriguez and her Stanford colleagues, ketamine might also activate a third system in the brain: opioid receptors.

Ketamine is known to bind weakly to the mu opioid receptor, acting as an agonist to produce a physiological response at the same site in the brain where narcotics like morphine exert their influence. It’s also known that opioids can have antidepressant effects, says Alan Schatzberg, a professor of psychiatry at Stanford and co-author of the new study.

It never made sense to Schatzberg that ketamine’s antidepressant effects were a result of blocking the glutamate receptors, as attempts to use other glutamate-blocking drugs as antidepressants have largely failed. The Stanford psychiatrist, who has spent his career studying depression, wondered if researchers were unknowingly activating opioid receptors with ketamine.

“You could test this by using an antagonist of the opioid system to see if you blocked the effect in people who are ketamine responders,” he says. “And that’s what we did.”

The researchers enlisted 12 subjects with treatment-resistant depression and gave them either an infusion of ketamine preceded by a placebo, or ketamine preceded by a dose of naltrexone, an opioid receptor blocker. Of those, seven subjects responded to the ketamine with placebo, “and it was very dramatic,” Schatzberg says, with depression lifting by the next day. “But in the other condition, they showed no effect,” suggesting it was the opioid receptor activity, not blocking glutamate receptors, that was responsible.

While opioid blockers prevented ketamine from activating the associated receptors, it did not block the drugs dissociative effects, suggesting dissociation alone won’t affect depression. “It’s not that, ‘hey, we’ll get you a little weird and you’ll get the effect,’” Schatzberg says.

The appeal of ketamine’s use as an antidepressant is clear enough. While more typical antidepressants may require six to eight weeks to produce benefits, ketamine works within hours.

“Our patients are asked to hang in there until the medication and talk therapy takes effect,” says Carlos Zarate, chief of the experimental therapeutics and pathophysiology branch of the National Institute of Mental Health (NIMH) who was not associated with the new study. While waiting for traditional treatments to kick in, patients “may lose their friends or even attempt suicide.”

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A treatment that works within 24 hours? “That’s huge.”

A vial of ketamine. The drug is used primarily as an anesthetic but is gaining popularity as an effective antidepressant.
A vial of ketamine. The drug is used primarily as an anesthetic but is gaining popularity as an effective antidepressant. (Wikimedia Commons)

But the study linking ketamine to opioid activity means an extra dose of caution is required. While ketamine acts quickly, the anti-depressive effects of the drug only last for a few days to a week, meaning repeat doses would be needed in practice. Researchers and clinicians should consider the risk of addiction in long-term use, Schatzberg says. “You’re going to eventually get into some form of tolerance I think, and that’s not good.”

However, the new finding is based on just seven subjects, and it still needs to be replicated by other scientists, says Yale professor of psychiatry Greg Sanacora, who was not involved in the new study. And even if the trial is replicated, it would not prove ketamine’s opioid activity is responsible for its antidepressant effects.

“It doesn’t show that at all,” says Sanacora, who studies glutamate, mood disorders and ketamine. “It shows that the opioid system needs to be functioning in order to get this response.”

Sanacora compares the new study to using antibiotics to treat an ear infection. If you administered an additional drug that blocks absorption of antibiotics in the stomach, you would block treatment of the ear infection, but you wouldn’t conclude that antibiotics fight ear infections through stomach absorption—you just need a normally functioning stomach to allow the antibiotic to do its job. Similarly, opioid receptors might need to be functioning normally for ketamine to produce antidepressant effects, even if opioid activity is not directly responsible for those effects.

Complicating matters further, placebos often cause patients to experience less pain, but opioid blockers like naltrexone have been shown to prevent this response, according to Sanacora. It could be, he suggests, that all the apparatus of the clinic—the nursing staff, the equipment—exerted a placebo effect that is mediated by the brain’s opioid system, and the patients who received naltrexone simply did not respond to that placebo effect.

“That’s a very important and powerful tool that is in all of medicine, not just in psychiatry,” Sanacora says. “And we know that the opiate system is involved, to some extent, in that type of response.”

It’s also possible, the researchers note in the paper, that ketamine’s action at the glutamate receptor is still important. “Ketamine acts in three distinct phases—rapid effects, sustained effects and return to baseline,” Rodriguez says. Opioid signaling may turn out to mediate ketamine’s rapid effects, while “the glutamate system may be responsible for the sustaining effects after ketamine is metabolized.”

One interpretation is that ketamine blocks glutamate receptors on neurons that are inhibitory, meaning they signal other neurons to fire fewer signals. By blocking these neurons from firing, ketamine may enhance glutamate activity in the rest of the brain, producing anti-depressive effects that persist after the opioid activity dies down.

“The reality is it’s in a gray zone,” Sanacora says. “This is just one small piece of a very large puzzle or concern that we really need to look at the data in total.”

That data is forthcoming. Results from a Janssen Pharmaceuticals clinical trial using esketamine, an isomer of ketamine, and involving hundreds of subjects will soon become public, according to Sanacora, who has consulted for the company. And at NIMH, Zarate and colleagues are studying hydroxynorketamine, a metabolite of ketamine that may provide the same benefits but without the dissociative side effects.

The ultimate goal of all this research is to find a ketamine-like drug with fewer liabilities, and that aim is bringing researchers back to the fundamentals of science.

“For me, one of the exciting parts of this study is that it suggests that ketamine’s mechanism is complicated, it acts on different receptors beyond glutamate and is the start of this exciting dialogue,” Rodriguez says. “Sometimes great science raises more questions than answers.”

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

What is interesting for the above articles is the Magnesium and copper components associated with Depression.

The most common biomarkers found are generally related to the regulation of lipid metabolism, control of immunoinflammatory response, control of vascular function, inter and intra-cellular communication. We additionally found that biomarkers related to nutrient sensing and proteostasis are related to LLD. Altogether, these studies suggest that there are core abnormalities, which are present in the first depressive episode, continue over mid-life and late-life, and are persistent even after successful antidepressant treatment. This view is consistent with the presence of biological “scars” in depression that render individuals with major depression , age, more vulnerable to systemic illness, disability, cognitive impairment and other negative health outcomes, which are not fully ameliorated despite successful antidepressant treatment . Robust machine learning techniques showed that three proteins (C-peptide, fatty acid-binding protein, and ApoA-IV) have a very high accuracy at discriminating individuals with remitted LLD compared to never depressed control participants. In fact, our study showed the highest discriminatory power of any previous studies, including those for schizophrenia, bipolar disorder or other common mental illnesses .

http://software.broadinstitute.org/gsea/msigdb

. LLD is associated with significantly higher levels of pro-inflammatory and lower levels of anti-inflammatory markers, reduced neurotrophic support, and higher levels of oxidative stress markers and activity of glycogen synthase kinase

I nflammation is a key pathway in the initiation and progression of coronary heart disease (CHD), and inflammatory biomarkers such as C-reactive protein (CRP) and interleukin-6 (IL-6) have shown consistent associations with incident CHD events (1). In recent years, myeloperoxydase (MPO) has drawn growing attention as a new inflammatory biomarker of CHD risk (2–4). Myeloperoxydase is an enzyme produced by activated leukocytes during the innate immune response that catalyzes the formation of reactive oxidant species. It is present in human atherosclerotic plaques and exhibits a variety of proatherogenic properties (5). Increased inflammation is a key mechanism through which several risk factors increase CHD risk (6). Depression is a risk factor for CHD (7), and whether increased inflammation is involved has attracted considerable interest (8). A role of inflammation in depression was first proposed by Smith in 1991 (9). Since then, several studies have reported a link between major depressive disorder (MDD) or depressive symptoms and a variety of inflammatory and immune biomarkers (10 –15). However, others have found no independent association (16) or mixed results (17–19), and one study even found lower levels of inflammatory biomarkers in depressed cardiac outpatients (20). It is increasingly recognized that the relationship between depression and inflammation is more complex than initially conceived (21). Depression may cause inflammation through altered neuroendocrine function and central adiposity (22). However, depression may also be a consequence of inflammation, since a pathogenic role of inflammatory cytokines in the etiology of depression has been described (23). Although given less consideration, a third possibility is that depression is a marker of some other underlying dimension that is separately linked to depression and inflammation. Recently, it has been proposed that such underlying factor could be a specific genetic makeup (24,25). Evidence for a common genetic substrate for depression and inflammation would be of substantial scientific and clinical interest, because it would suggest that a common biological pathway links these two conditions. We found that MDD is associated with higher levels of inflammation and that this association is particularly robust for MPO, an inflammatory biomarker that was never studied before in relation to depression. However, we also found evidence for genetic confounding in this association. Our results are consistent with the hypothesis that there is a common genetic substrate linking MDD and inflammation, suggesting that these two phenotypes share a common pathophysiological mechanism. MPO, Other Inflammatory Markers, and Depression Myeloperoxydase is an enzyme of the innate immune system, which exhibits a wide array of proatherogenic features (5,34). Myeloperoxydase is secreted upon leukocyte activation, contributing to innate host defenses. However, it also increases oxidative stress, thereby contributing to tissue damage during inflammation and atherogenesis. Myeloperoxydase generates numerous reactive oxidants that cause lipid peroxidation, posttranslational modifications to target proteins, and decrease of nitric oxide bioavailability, resulting in oxidation of LDL and apolipoprotein A1, protein carbamylation, and endothelial dysfunction (5,35,36). Transgenic mice containing the human MPO gene show significantly larger atherosclerosis buildup than the wild-type (34,37). In humans, individuals with total or subtotal MPO deficiency, a defect with a frequency of 1 in every 2000 to 4000 whites, are less likely to develop cardiovascular diseases, and those harboring a promoter polymorphism associated with a twofold reduction in MPO expression appear cardioprotected (5,38 – 40). Consistent with these proatherogenic properties, MPO has received growing attention as a novel risk marker for future cardiovascular events (2– 4). Oxidative stress has also been linked to neuronal degeneration in the central nervous system (41,42). Myeloperoxydase is both expressed and enzymatically active in the human brain (43,44) and is associated with Alzheimer’s disease (44). Previous studies have described abnormalities of oxidant-antioxidant systems in MDD suggestive of higher oxidative stress. For example, elevated levels of antioxidant enzymes, particularly superoxide dismutase (SOD), and biomarkers of oxidation, such as malondialdehyde, were found in plasma, red blood cells, or other peripheral tissues of acutely depressed MDD patients compared with control subjects (45– 47). In some cases (46,47), but not others (45), these abnormalities were reduced with antidepressant treatment. Superoxide dismutase coenzyme concentrations are also higher in postmortem brain tissue (prefrontal cortex) of MDD patients than in control brains (48).

MOOD FOOD Project

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

Ketamine-like depression treatment on track for FDA approval

 

Ketamine offers lifeline for people with severe depression, suicidal thoughtsThe drug is a close relative of ketamine, a powerful medication used in hospitals primarily as an anesthetic; recent scientific studies have also shown its potential with treatment-resistant depression and suicidal ideation. Ketamine is also used recreationally — and illegally — as a club drug known as Special K. It generates an intense high and dissociative effects.Esketamine, which is not FDA-approved for any conditions, targets a different brain pathway than approved antidepressants, many of which have been around for decades. It is expected to be used in combination with antidepressants, but the latter can take a month or two to take effect. Esketamine, on the other hand, might have an effect within hours or days, according to an FDA briefing document.The drug was designated as a breakthrough therapy in 2013, intending to “expedite the development and review of drugs for serious or life-threatening conditions,” the FDA says. First-line treatments don’t work for roughly 30% to 40% of patients with major depressive disorder, according to the briefing document.The FDA does not have to follow the recommendation of advisory committees, though it often does.

ERs 'flooded' with mentally ill patients with no place else to turn

ERs ‘flooded’ with mentally ill patients with no place else to turnHowever, the research behind esketamine has come under some criticism, with two of five key studies failing to meet their primary endpoints. Only one of these studies is a positive short-term trial, whereas most FDA-approved antidepressants are backed by at least two, according to the briefing document. But Janssen has maintained that the overall picture is positive.Adverse events tended to occur in the first two hours patients received the drug, including sedation, blood pressure increases and dissociation. For this reason, patients wouldn’t be able to pick it up at a local pharmacy; it would be given under the supervision of health care professionals who can keep an eye on the person during those first two hours.Because of the drug’s close relationship to ketamine, experts have also raised concerns about its potential for misuse and abuse. The clinical trials have not seen evidence of this risk, according to presentations made during the meeting.Advisory panelists also expressed concern that not enough long-term data was available to characterize the drug’s cognitive effects and other health impacts down the line.Get CNN Health’s weekly newsletter

There were six deaths of patients taking esketamine in trials, including three suicides, but FDA materials concluded “it is difficult to consider these deaths as drug-related.”The only current FDA-approved medication for treatment-resistant depression combines two other drugs already on the market. Other non-pharmaceutical treatments exist, such as electroconvulsive therapy.Janssen spokesman Greg Panico said no information about pricing would be available at this time. An FDA decision is expected in early March, he added.

 

CNN)A ketamine-like drug for treatment-resistant depression was backed by a US Food and Drug Administration advisory committee on Tuesday. If it is then approved by the FDA, the drug — called esketamine — may provide a new option for patients with major depressive disorder who have tried at least two other antidepressants without success.A panel of experts voted to endorse the drug, which is made in nasal spray form by the pharmaceutical company Janssen, a division of Johnson & Johnson. Fourteen members voted that the benefits outweighed the risk, with two opposed and one abstaining.

Ketamine offers lifeline for people with severe depression, suicidal thoughts
703-844-0184 | NOVA Health Recovery | Alexandria, Va 22306

Ketamine offers lifeline for people with severe depression, suicidal thoughtsThe drug is a close relative of ketamine, a powerful medication used in hospitals primarily as an anesthetic; recent scientific studies have also shown its potential with treatment-resistant depression and suicidal ideation. Ketamine is also used recreationally — and illegally — as a club drug known as Special K. It generates an intense high and dissociative effects.Esketamine, which is not FDA-approved for any conditions, targets a different brain pathway than approved antidepressants, many of which have been around for decades. It is expected to be used in combination with antidepressants, but the latter can take a month or two to take effect. Esketamine, on the other hand, might have an effect within hours or days, according to an FDA briefing document.The drug was designated as a breakthrough therapy in 2013, intending to “expedite the development and review of drugs for serious or life-threatening conditions,” the FDA says. First-line treatments don’t work for roughly 30% to 40% of patients with major depressive disorder, according to the briefing document.The FDA does not have to follow the recommendation of advisory committees, though it often does.

ERs 'flooded' with mentally ill patients with no place else to turn

ERs ‘flooded’ with mentally ill patients with no place else to turnHowever, the research behind esketamine has come under some criticism, with two of five key studies failing to meet their primary endpoints. Only one of these studies is a positive short-term trial, whereas most FDA-approved antidepressants are backed by at least two, according to the briefing document. But Janssen has maintained that the overall picture is positive.Adverse events tended to occur in the first two hours patients received the drug, including sedation, blood pressure increases and dissociation. For this reason, patients wouldn’t be able to pick it up at a local pharmacy; it would be given under the supervision of health care professionals who can keep an eye on the person during those first two hours.Because of the drug’s close relationship to ketamine, experts have also raised concerns about its potential for misuse and abuse. The clinical trials have not seen evidence of this risk, according to presentations made during the meeting.Advisory panelists also expressed concern that not enough long-term data was available to characterize the drug’s cognitive effects and other health impacts down the line.Get CNN Health’s weekly newsletter

There were six deaths of patients taking esketamine in trials, including three suicides, but FDA materials concluded “it is difficult to consider these deaths as drug-related.”The only current FDA-approved medication for treatment-resistant depression combines two other drugs already on the market. Other non-pharmaceutical treatments exist, such as electroconvulsive therapy.Janssen spokesman Greg Panico said no information about pricing would be available at this time. An FDA decision is expected in early March, he added.

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184

Combined Treatment With Naltrexone, Ketamine Effective for Depressive Symptoms

Ketamine
Participants who received the naltrexone and ketamine regimen reported an improvement in depressive symptoms.

The effectiveness of ketamine as an antidepressant has been mitigated by concerns of possible abuse and suggestions that the antidepressant effects might be dependent on opiate receptor stimulation. However, results from a case series published in JAMA Psychiatry support the efficacy of combined naltrexone and ketamine treatment for depressive symptoms.

Investigators conducted an 8-week open-label pilot study of 5 patients with current major depressive disorder and alcohol use disorder. Patients received a single dose of injectable naltrexone (380 mg) 2 to 6 days prior to the first ketamine treatment, followed by 4 weeks of ketamine infusions (0.5 mg/kg once a week). Patients were assessed at baseline and at 4 hours after each infusion with the Montgomery Åsberg Depression Rating Scale. The primary outcome measure was a 50% or higher improvement from baseline Montgomery Åsberg Depression Rating Scale score. All patients were abstinent from alcohol for 5 days or longer prior to the initial ketamine infusion.

Combined treatment with naltrexone and ketamine was associated with a significant reduction in depressive symptoms. Three of 5 patients (60%) met response criteria following initial ketamine dose, and 5 of 5 patients (100%) met response criteria by the fourth dose, although 1 patient left the trial following 2 ketamine infusions. Symptoms improved by 57% to 92%, depending on the patient. In addition, 4 of 5 patients (80%) reported a reduction in alcohol craving and consumption per the Obsessive Compulsive Drinking Scale. Combined treatment was safe and well tolerated. No serious adverse events were reported in the trial.

These results challenge existing data that pretreatment with naltrexone may interfere with the antidepressant properties of ketamine. Research with a larger cohort is necessary to further investigate the efficacy of combination treatment with naltrexone and ketamine for depression.

Reference

Yoon G, Petrakis IL, Krystal JH. Association of combined naltrexone and ketamine with depressive symptoms in a case series of patients with depression and alcohol use disorder [published online January 9, 2019]. JAMA Psychiatry. doi: 10.1001/jamapsychiatry.2018.3990

Association of Combined Naltrexone and Ketamine with depressive symptoms in a case series of patients with depression and AUD

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NEW VARIATION OF KETAMINE TO BE APPROVED BY FDA FOR TREATMENT OF DEPRESSION

“The biggest breakthrough in depression treatment since Prozac”

  • 6 FEBRUARY 2019
New variation of ketamine to be approved by FDA for treatment of depression

Back in July of 2017, the world’s first ketamine trial for depression proved to be “incredibly effective” in curing elderly patients. The drug, often referred to as Special K, is a popular substance found clubland culture, but recent breakthrough studies and the development of chemical variations of ketamine has shown that the drug is a powerful tool that can help save lives and allow people to live life to the fullest potential.

According to Bloomberg, the Food and Drug Administration (FDA) has cleared the way for the first drug based on ketamine, from Johnson & Johnson, to gain approval as soon as March 2019. The ketamine variant, called esketamine, may very well become the first-ever rapid-acting antidepressant for suicidal patients and “treatment-resistant depression”. While physicians are still unsure about the long term effects of the drug and more trials need to be conducted in order to get to the root of its effectiveness, many doctors think esketamine may be “the biggest breakthrough in depression treatment since Prozac”.

The long-form story published in Bloomberg tells the stories of multiple people who have benefited from ketamine treatment and how the rapid development of this new miracle drug is being used to combat the skyrocketing rate of suicide in the United States (up 33 per cent in the last 20 years).

The drug esketamine provides “a quick molecular reset button for brains impaired by stress or depression”. Initially developed as an intravenous drug, Johnson & Johnson has developed a nasal solution that has the same effect. The initial study of the drug involved 68 people at high risk that were all antidepressants and other treatment – no placebos were used on actively suicidal patients. Of those who were given esketamine, 40 per cent were deemed “no longer at risk of killing themselves within 24 hours”.

As physicians and investors race to find out more about this supposed miracle drug, concerns remain that a new abuse crisis – similar to that of the current opioid crisis – may arise following federal approval of the substance.

Check out the captivating story behind these successful studies here

Learn more about ketamine’s colorful clubland history here.

Find out how we survived an unconventional, silly, hilarious and definitely brilliant musical about ketamine here.