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Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

VA to offer new ketamine-based nasal spray to help combat depression

The newest FDA-approved medication to treat severe depression, a nasal spray based on the anesthetic (and misused hallucinogenic party drug) ketamine, will soon be available to veterans treated within the Department of Veterans Affairs.

In a move that may help thousands of former service members with depression that has not improved with other treatments, VA officials announced Tuesday that the department’s doctors are now authorized to prescribe Spravato, the brand name for esketamine, a molecular variation of ketamine.

The decision to offer a drug hailed by many as a breakthrough in treatment for its speedy results — often relieving symptoms in hours and days, not weeks — shows the VA’s “commitment to seek new ways to provide the best health care available for our nation’s veterans,” Secretary Robert Wilkie said in a release.

“We’re pleased to be able to expand options for Veterans with depression who have not responded to other treatments,” Wilkie added.

The treatment will be available to veterans based on a physician’s assessment and only will be administered to patients who have tried at least two antidepressant medications and continue to have symptoms of major depressive disorder.

An estimated 16 million Americans have had at least one major episode of depression, and of those, 1 in 3 are considered treatment-resistant. In the veteran population of 20 million, the estimated diagnosis rate of depression is 14 percent — up to 2.8 million veterans. Between one-third and half of those veterans may be treatment-resistant.

The lack of effective medications for difficult-to-treat patients prompted the Food and Drug Administration to place esketamine on a fast track, expediting its review of the drug to ensure that it went to patent as soon as safely possible, according to administration officials.

“Controlled clinical trials that studied the safety and efficacy of this drug, along with careful review through the FDA’s drug approval process, including a robust discussion with our external advisory committees, were important in our decision to approve this treatment,” said Dr. Tiffany Farchione, acting director of the FDA’s Center for Drug Evaluation and Research Division of Psychiatry Products, in a release.

As with any other medication, there are risks. Spravato carries a boxed warning for side effects that include misuse, the reason it is administered under a doctor’s supervision. The list of side effects includes sedation and blood pressure spikes and disassociation, such as feelings of physical paralysis and out-of-body experiences. It also can cause suicidal thoughts and behaviors.

Acknowledging the dangers, FDA made esketamine available only through a restricted distribution system.

A veteran prescribed Spravato would inhale the nasal spray at a medical facility while under supervision of a medical provider, and would be monitored for at least two hours after receiving the dose. A typical prescription includes twice-weekly doses the first month, followed by a single dose weekly or biweekly as needed. Spravato cannot be dispensed for home use.

Spravato is made by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson. It is the first major antidepressant medication to hit the market in 30 years.



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NOVA Heath Recovery Ketamine Treatment Center | Call 703–844-0184 for a Ketamine Treatment | Alexandria, Va 22306 | 7 days a week and evening appointments as well! We also evaluate depression, ADHD, PTSD. Intranasal Ketamine available.   The email is EMAIL@novahealthrecovery.com

Ketamine for Depression: Does it work?

What is Ketamine?

Ketamine, also known as Ketalar, Ketaset, and Ketanest, is a medication that’s currently FDA approved only as an anesthetic but it’s showing great potential as a treatment for severe depression. In fact, numerous Ketamine Clinics have begun to appear throughout the United States to solve this problem. Depressed patients with stubborn symptoms get relief within hours rather than weeks with conventional anti-depressants. Doctors can only prescribe ketamine for depression off-label because studies are relatively new, but experts are saying that ketamine is one of the biggest breakthroughs in severe depression treatment to come along in decades [1].

Ketamine is a powerful pain reliever and a relaxant, but at higher doses it can also induce unconsciousness and disturbances in how a person experiences sight and sound. In high doses, it can produce hallucinations and delusions and its ability to create strong dissociative experiences have made it popular in the club scene where it’s known as “Special K”. An overdose of ketamine can be fatal and it can be addictive if patients don’t follow their doctor’s prescription guidelines. Currently, ketamine is scheduled as a class III drug and it’s created a lot of controversy among experts who disagree about whether it’s safe for doctors to prescribe it as a treatment for chronic depression. Despite the intrigue and the need for additional research to establish its safety and efficacy, ketamine clinics are now offering infusion treatments to patients all over the United States [1][2][8][9].

Effects of Ketamine

As a street drug, ketamine creates a sense of dissociation and can change a person’s sense of hearing and sight, but for patients with severe depression, ketamine relieves mood problems within hours or sometimes moments for about 85% of those treated. While conventional anti-depressants can take several weeks to take effect, studies have shown that ketamine often improves depression symptoms almost immediately. Patients typically feel better within hours [1][2].

Doctors, dentists, and psychiatrists prescribe ketamine to help their patients achieve a variety of different health goals. Doctors often use ketamine in FDA approved situations such as procedures involving cardiac catheterization, orthopedics, skin grafting, or diagnostics involving the eye, ear, nose, and throat. Surgical dentists may also use ketamine as an anesthesia during tooth extractions. After other treatment options have been attempted and failed, doctors may use ketamine to treat certain types of seizures in patients with status epilepticus [2].

Researchers demonstrated in 2014 that ketamine reduced symptoms of post-traumatic stress disorder in 41 patients and there are other exciting possibilities on the horizon in terms of PTSD treatment. Treatment-resistant depression and substance use disorders could both be treated with this drug, though many medical professionals view ketamine treatment for these mental health issues as controversial [2].

Ketamine for Pain Management (CRPS)

Central Sensitization is a process the central nervous system goes through which causes Complex Regional Pain Syndrome (CRPS/RSD) and other types of chronic pain. In central sensitization the number of NMDA receptors increases which amplifies a patients’ experience of pain. Ketamine interferes with NMDA receptors which puts a damper on pain signaling, providing pain relief and a desensitization to pain for patients affected by CRPS [8].

At low doses, ketamine can relieve chronic pain and potentiate the effects of sedatives. Researchers believe that ketamine could provide an alternative to more addictive painkillers like morphine if the FDA approves it for this use [1][8].

Ketamine for Anesthesia

In the 1960’s doctors used ketamine as an anesthetic on the battlefields in Vietnam because administration lends itself well to use in disaster zones; doctors don’t need electricity, an oxygen supply, or even highly trained staff to give patients ketamine. Since that time, the FDA has only approved ketamine for use as an anesthetic in hospitals and medical settings. As an anesthetic, ketamine doesn’t lower the patient’s breathing rate or blood pressure, which makes it safer than other anesthesia options. It’s for this reason that veterinarians use ketamine more than any other type of anesthetic for surgery on animals [1][2].

Ketamine for Depression

Depression is a major issue in the United States and though there are many anti-depressants on the market, about one-third of patients don’t experience any relief from their symptoms using the drugs that are currently available. Ketamine acts on depression by rebalancing a different set of neurotransmitters and receptors (the NMDA/glutamate receptors and GABA receptors) than the old-school Selective Serotonin Reuptake Inhibitors (which function by blocking reabsorption of serotonin). By blocking glutamate receptors in the brain, the majority of patients with ‘Treatment Resistant Depression’ are able to experience relief from their symptoms using ketamine [1].

Even though ketamine has yet to be approved by the FDA for use in treating depression, patients are flocking to ketamine clinics to receive the treatment off-label. It provides fast relief, which is vitally important in cases where patients feel suicidal and for depressed patients who have tried all of the other anti-depressants available with no luck, ketamine offers new hope. Infusion treatments take about 1 hour at a clinic, but the results are long-lasting with most patients returning only once every one to two weeks over a specified period of time. The treatment is expensive, but the results are promising enough that patients are willing to pay out-of-pocket for it [5][8][9].

The FDA hasn’t yet approved ketamine for use as an anti-depressant, but both Esketamine and Rapastinel (developed by Johnson & Johnson and Allergan respectively) have been fast-tracked as breakthrough drugs. The demand for these two medications is projected to grow rapidly in the coming years.  Still, doctors can only prescribe ketamine for depression off-label since ketamine has been FDA approved for use as an anesthetic, not as an anti-depressant. Researchers have cautioned doctors to avoid over-prescribing this drug because the long-term health and well-being of patients could be at risk. Ketamine has a high potential for abuse, after all and experts claim that the evidence does not exist to prove that this drug is safe [1][2][6].

Ketamine as Drugs of Abuse

Ketamine is abused as a recreational drug and it has effects that are similar to Phenylcyclidine (PCP), LSD, dextromethorphan (DXM) and nitrous oxide (laughing gas). Ketamine is a dissociative anesthetic that can alter one’s sense of sight and sound and also produce profound relaxation, hallucinations, and delusions for about an hour. The effects of the drug come on almost immediately. It has been used as a rape drug that can render women unable to speak or to move [1][2].

People who abuse ketamine have developed serious bladder and kidney problems such as ulcerative cystitis, stomach issues, and memory loss. In fact, street users even risk developing depression as a result of addiction and dependence on the drug [2].

How is Ketamine used for depression?

Doctors may prescribe ketamine by itself or in tandem with other anti-depressants [3]. Many experts on depression recommend that ketamine only be used as a short-term depression treatment option while other anti-depressants are taking effect. Though there are convenient ketamine nasal sprays in research and development by Johnson & Johnson, the high-potential for abuse of this drug has made many doctors and psychiatrists wary of using this drug to treat depression long-term. Further, some medical organizations are concerned that the long-term effects of chronic ketamine use is not well-understood. According to these organizations, more research is needed to establish the safety of this drug [1][2][6].

Promising Remedy for ‘Treatment Resistant Depressions’

Thomas Insel, the director of the National Institute of Mental Health says, “Recent data suggest that ketamine, given intravenously might be the most important breakthrough anti-depressant in decades.” Conventional anti-depressants aren’t able to help about one-third of patients with major depression, but new ketamine drugs such as esketamine (in development by Johnson and Johnson) may offer new hope. Infusion therapies available through ketamine clinics across the United States report a high success rate of 60% to 70% treating Treatment Resistant Depression as well as Major Depression with risk of suicide [1][3][5][6].

Fast-Tracked by FDA

Two drugs, Johnson & Johnson’s Esketamine and Allergan’s Rapastinel, were both upgraded to ‘fast-track’ status by the FDA in 2016 due to their importance and promise in treating treatment resistant depression.

Depression is the leading cause of disability in the world and currently, 12% of Americans (about 29 million people) are taking anti-depressant medications. The suicide rate is higher now than it has been in over 30 years. And about one-third of depressed Americans don’t experience relief taking conventional anti-depressants. In the interest of capitalizing on the market value of depression, which is projected to almost double by the year 2024, the FDA will review the use of these new ketamine-based depression drugs in 2018 and 2019, allowing Johnson & Johnson and Allergan to go through an abbreviated version of the normally lengthy FDA approval process for new drug therapies [5][6].

Experimental Trials

Drug trials have shown that 60% to 70% of patients with Treatment-Resistant Depression have been responsive to ketamine. Esketamine, a nasal spray developed by Johnson & Johnson, is in Phase III clinical trials right now. They are expected to receive FDA approval later in 2018, and once that happens, it will open doors for administering ketamine outside a clinic setting.

Rapastinel, which was developed by Allergan, is out of Phase III and awaiting FDA approval. The drug can be administered within 30 seconds intravenously and Allergan is working to develop an oral version of the drug as well [2][3][5].

How Ketamine Therapy Works

Ketamine therapy is usually performed at a ketamine clinic. Patients receive an intravenous infusion of the drug with relief from depression symptoms that can last for several weeks.

Ketamine Infusion or Intravenous Therapy (Infusion Process)

Ketamine can be injected directly into muscle tissue or it can be given intravenously. Researchers for Johnson & Johnson have also recently developed new treatment protocol called Esketamine that’s awaiting FDA approval. Using Esketamine, patients will be able to self-administer the drug as a nasal mist [2][3].

Patients must receive a referral from a doctor to go to a ketamine clinic. There, patients can receive an intravenous infusion of ketamine. On the first visit, a doctor will assess the patient before hooking the patient up to a ketamine IV. Patients then experience a variety of sensations during the infusion and for up to 2 hours following the infusion. Many patients report feeling a sense of deep relaxation and the ability to reflect on past traumas and anxieties calmly [7][9].

How does it work?

Researchers have demonstrated that a deficiency in certain vital connections between certain neurons in the brain may cause depression. Ketamine works as an NMDA receptor antagonist (NMDA is a glutamate receptor also known as N-methyl-d-aspartate) and an AMPA receptor stimulator. As such, ketamine stimulates the development of new receptors and synapses in the brain which helps patients regulate their mood, sleep better, and experience better focus [2][8].

Ketamine works by interfering with and rebalancing the glutamatergic system (glutamate and GABA) to stimulate new synaptic connections, better memory, and brain plasticity [8]. During ketamine infusions, patients may feel capable of exploring traumatic memories more calmly to reframe the past or they may feel a pleasant sensation of relaxation or floating [7]. Effects from an infusion can last for up to a week or two.

Intranasal ketamine formulas work by binding to a receptor called N-methyl-d-aspartate. In the brain, ketamine blocks the neurotransmitter glutamate which causes communication between the conscious mind and other parts of the mind (such as mood centers) to be blocked. In low doses, it relieves depression, but in higher doses, it can cause patients to feel an uncomfortable sense of dissociation from the body similar to a near death experience [2][3][4].

While most anti-depressant medications must build up in the body over the course of several weeks in order to have an effect, ketamine’s mood-altering benefits happen as the drug leaves the body. Researchers don’t know why this is the case, or even exactly how the drug achieves its strong anti-depressant effects but the fact is, ketamine works quickly to relieve depression symptoms in 85% of patients who are resistant to other forms of therapy [1]. Standard anti-depressants target the neurotransmitters serotonin, norepinephrine, and dopamine, but ketamine is different. Ketamine blocks glutamate and stimulates synaptic plasticity or the ability of the brain to change and grow [5].

Doctors don’t fully understand how ketamine works or the potential effects that patients may experience from taking tiny doses of this drug over and over again. What is known is that recreational users can suffer ulcerative cystitis or cognitive issues as a result of prolonged use [5].

Ketamine Infusion Dose/Dosage

Researchers are working to find the perfect ketamine dose for depression patients. The risk of overdosing on this drug is high for the recreational user because there is only a slight difference between a dosage that leads to desirable effects and one that can cause a lethal overdose. The goal for researchers is to find an exact dosage that’s high enough to get rid of symptoms of depression but low enough to prevent patients from experiencing hearing and sight disturbances as well as the other negative effects from the drug [1][2][9]. Ketamine produces only temporary effects on severe depression. Patients must continue to return to the clinic for infusions every few weeks to keep their depression symptoms in check [5].

Ketamine therapy cost? Is ketamine therapy covered by insurance?

Ketamine therapy is rarely covered by insurance and it’s pricey. Patients typically pay between $400 and $800 per infusion in many centers.

Ketamine Infusion Side-Effects

Ketamine use can cause a variety of side effects including:

  • Extreme fatigue or exhaustion
  • Nervousness or restlessness
  • Sweating
  • Amnesia
  • Puffy or swollen eyelids, lips, or tongue
  • Hives, itching, or rash
  • Delusions
  • Difficulty thinking or learning
  • Loss of appetite
  • Nausea
  • Fast heartbeat, slow heartbeat, irregular heartbeat
  • Dizziness, fainting
  • Difficulty swallowing
  • Confusion
  • Convulsions
  • Difficulty breathing
  • Chest pain or discomfort
  • Blurry vision
  • Inability to control eye movement
  • Slurred speech
  • Difficulty urinating, frequent urination, cloudy or bloody urine
  • Paleness, bluish lips, skin, or fingernails
  • Increased pressure in the brain and the eyes [1][2]

Where can you get ketamine therapy? | NOVA Health Recovery Ketamine Treatment Center | Alexandria, Va 22306 | 703-844-0184

Off-label ketamine infusion therapy is an unregulated business that has gotten the attention of both clinicians and medical organizations. There are currently ketamine clinics in a number of cities throughout the United States [10].

s ketamine therapy addictive?

Patients who use ketamine long-term may develop a tolerance and addiction to the drug over time. In medical settings, ketamine is safe to use because the dosage is carefully calibrated and monitored, but there is a high potential for abuse when patients use ketamine recreationally as  a street drug. If patients don’t follow their doctor’s prescription for ketamine it can have extremely negative mental and physical effects particularly on the brain and bladder [2].

Ketamine-Based Drugs in Late Stage Trials

Both Rapastinel and Esketamine are ketamine-based drugs that have been ‘fast-tracked’ by the FDA because the FDA has identified them as “breakthrough drugs” [5].

Rapastinel

Allergan developed Rapastinel, a ketamine drug that can be administered in 30 seconds intravenously. It works on the same receptors as ketamine, but it doesn’t produce hallucinations. An oral version of Rapastinel is also in development. The FDA considers Rapastinel to be a “breakthrough drug” which means that Allergan can speed through the lengthy drug approval process and get the drug to market by 2019 [5].

Esketamine

The FDA has designated Esketamine a “breakthrough therapy”, which means that the drug developers, a subsidiary of Johnson & Johnson, can speed through the lengthy drug approval process to get the drug on the market more quickly. Esketamine can be administered like a nasal decongestant, which would make it more convenient than intravenous therapy for depression patients. Experts feel that Esketemine would be most appropriately used as an adjunct therapy in combination with other anti-depressant medications, not as a standalone treatment for depression [5][6].

According to one recent study, when administered in combination with other oral antidepressants, Esketamine reduced patients’ depression symptoms more than oral anti-depressants alone. The anti-depressant effects of using a conventional anti-depressant in conjunction with Esketamine occurred within only about 1 week. When used alone, Esketamine effects seem to last 1 to 7 days in most patients. Esketamine is in Phase 3 testing with the FDA for use as a drug for ‘Treatment Resistant Depression’ and Major Depression with risk of suicide. Johnson & Johnson will file for FDA approval for this drug as a depression treatment in 2018 [3][6].

Risks of Ketamine Abuse

Ketamine abuse is a serious problem. It is possible to become addicted to ketamine. Patients may begin to need higher doses of the drug in order to experience the positive effects. An overdose of ketamine can be deadly. The effects of using ketamine chronically over a long period of time have not been established, but recreational drug users who have used ketamine long-term have developed ulcerative cystitis as well as cognitive issues [1][2].

The Ketamine Controversy

While ketamine can literally save lives by relieving the symptoms of major, Treatment Resistant Depression, including the risk of suicide, research still has not established the safety of ketamine for long-term use. The lethal dose of ketamine is only slightly higher than the therapeutic dose and its addictive properties mean that it could cause depressed patients more problems than it solves. Ketamine clinics have popped up all over the country to cash in on the high demand for a depression treatment that really works, but the research hasn’t demonstrated that this drug is safe for chronic use. So this is an instance where the buyer needs to beware. The FDA has fast-tracked these drugs because it’s constituents see market potential, but important research still needs to be done on this drug to demonstrate it’s safety and long-term efficacy.

Resources:

[1] Collins, S. (2005-2018). What you need to know about ketamine’s effects. Retrieved April 3, 2018 from https://www.webmd.com/depression/features/what-does-ketamine-do-your-brain#1

[2] Davis, K. (2017). What are the uses of ketamine? Retrieved April 3, 2018 from https://www.medicalnewstoday.com/articles/302663.php

[3] Pagliarulo, N. (2018). J& J builds case for ketamine-based depression drug. Retrieved April 3, 2018 from https://www.biopharmadive.com/news/jj-builds-case-for-ketamine-based-depression-drug/513866/

[4] No Author (2007-2018). Special K and X. Retrieved April 3, 2018 from http://goaskalice.columbia.edu/answered-questions/special-k-and-x

[5] Oaklander, M. (2017). New Hope for Depression. Retrieved April 3, 2018 from http://time.com/4876098/new-hope-for-depression/

[6] Oberhaus, D. (2017). Ketamine Nasal Spray Will Totally Change the Market for Antidepressant Drugs. Retrieved April 3, 2018 from https://tonic.vice.com/en_us/article/wjxd9b/ketamine-nasal-spray-will-totally-change-the-market-for-antidepressant-drugs

[7] Ketamine Advocacy Network (2015). The Infusion Experience. Retrieved April 3, 2018 from http://www.ketamineadvocacynetwork.org/the-infusion-experience/

[8] Ketamine Clinics of Los Angeles (2018). How does ketamine infusion therapy work? Retrieved April 3, 2018 from https://www.ketamineclinics.com/about-ketamine/how-it-works/

[10] Ault, A. (2017). US Ketamine Clinics Continue to Mushroom With No Regulation. Retrieved April 3, 2018 from https://www.medscape.com/viewarticle/886750

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Dual studies highlight ketamine’s potential to treat anxiety and addiction

New evidence suggests ketamine can reduce anxiety related to major depression, and substance abuse depression
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Two new studies suggest the psychiatric benefits of ketamine treatment may extend beyond just the targeting of depression. The research demonstrates ketamine may be helpful in targeting both anxiety- and substance abuse-related depression.

Although ketamine is a relatively old drug, originally developed in the 1950s as an anesthetic, over the last decade a growing body of research has affirmed its unique, and rapid, antidepressant effects. The anecdotal effects of the drug on depression have raced ahead of scientific research so quickly that ketamine clinics have popped up all across the United States, where the drug can be administered for up to US$1,000 a dose.

Much is still unknown about how efficacious ketamine actually is for depression. We don’t know ideal dosages, how long the treatments last, or how safe long-term usage is. Two newly published studies are adding to our knowledge about ketamine’s psychiatric uses, adding weight to the drug’s burgeoning new potential.

The first study, led by a team from Massachusetts General Hospital and Harvard Medical School, set out to study how effective ketamine is at treating patients with anxiety-based treatment-resistant depression. This is an important question to resolve, as many traditional antidepressants do not consistently improve anxiety-based symptoms in cases of major depression.

The study took 99 subjects with treatment-resistant depression, half of whom suffered from high anxiety and half of whom displayed no anxious symptoms. The study randomly administered subjects either one of four different intravenous ketamine doses, or midazolam, a general sedative that could serve as a control.

As well as demonstrating ketamine’s novel antidepressant qualities, the study revealed the drug worked equally well in both anxious and non-anxious subjects. This suggests that ketamine’s antidepressant effects are uniquely effective across different types of treatment-resistant depression, something that cannot be said for many major antidepressant drugs.

“In contrast to reports from monoaminergic antidepressants, our data suggest that patients with anxious depression respond equally as well to ketamine compared to those with non-anxious depression,” write the researchers in the published study.

The second new study comes from a team at Yale University School of Medicine. This research investigated whether ketamine could be effective in treating addiction-related depression when administered in tandem with naltrexone.

A study in 2018 offered a small but significant finding, revealing that ketamine was ineffective in treating depression when administered alongside naltrexone. These results were important because they suggested that part of ketamine’s antidepressant effects may be related to the activation of opioid receptors, which would mean long-term ketamine use may potentially result in problems with addiction, something that many researchers have long argued against.

Naltrexone, an opioid receptor blocker, is often administered effectively to combat serious substance abuse problems, so if it rendered ketamine ineffective then that would cast doubt on much research into how ketamine actually works to reduce symptoms of depression. The new Yale research was small, with a sample of only five patients, but its results strongly suggest ketamine and naltrexone do not cancel each other out.

All five subjects suffering from alcohol use disorder and depression displayed significant depressive relief from ketamine dosages despite long-term naltrexone consumption. Senior author on the study, John Krystal, says although larger studies still need to be completed the research does suggest ketamine and naltrexone may be a complimentary combination that helps treat substance abuse and its related depression.

“[The results] raise the possibility that for people who have depression complicated by substance abuse disorders, the combination of ketamine and naltrexone may be a strategy to explore in the effort to optimally treat both conditions,” says Krystal.

Although this new study only consisted of five subjects, the prior research linking ketamine to the opioid system was generated from just 12 subjects. So we are still in uncharted territory regarding ketamine’s mechanistic effects of the brain. But the Yale research should assuage some fears that ketamine may be, “merely another opioid in a novel form.”

The ketamine anxiety study was published in the journal Depress Anxiety.

The ketamine naltrexone study was published in the journalJAMA Psychiatry.

Source: Yale News

Efficacy of intravenous ketamine treatment in anxious versus nonanxious unipolar treatment‐resistant depression

Abstract

Objective

To examine the effect of high baseline anxiety on response to ketamine versus midazolam (active placebo) in treatment‐resistant depression (TRD).

Methods

In a multisite, double‐blind, placebo‐controlled trial, 99 subjects with TRD were randomized to one of five arms: a single dose of intravenous ketamine 0.1, 0.2, 0.5, 1.0 mg/kg, or midazolam 0.045 mg/kg. The primary outcome measure was change in the six‐item Hamilton Rating Scale for Depression (HAMD6). A linear mixed effects model was used to examine the effect of anxious depression baseline status (defined by a Hamilton Depression Rating Scale Anxiety‐Somatization score ≥7) on response to ketamine versus midazolam at 1 and 3 days postinfusion.

Results

N = 45 subjects had anxious TRD, compared to N = 54 subjects without high anxiety at baseline. No statistically significant interaction effect was found between treatment group assignment (combined ketamine treatment groups versus midazolam) and anxious/nonanxious status on HAMD6 score at either days 1 or 3 postinfusion (Day 1: F(1, 84) = 0.02, P = 0.88; Day 3: F(1, 82) = 0.12, P = 0.73).

Conclusion

In contrast with what is observed with traditional antidepressants, response to ketamine may be similar in both anxious and nonanxious TRD subjects. These pilot results suggest the potential utility of ketamine in the treatment of anxious TRD.

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What are the uses of ketamine?

Ketamine is a medication that is used to induce loss of consciousness, or anesthesia. It can produce relaxation and relieve pain in humans and animals.

It is a class III scheduled drug and is approved for use in hospitals and other medical settings as an anesthetic.

However, it is also a commonly abused “recreational” drug, due to its hallucinogenic, tranquilizing and dissociative effects.

Controversy has arisen about using ketamine “off-label” to treat depression. Off-label uses of drugs are uses that are not approved by the the United States, (U.S.) Food and Drug Administration (FDA).

Ketamine is safe to use in controled, medical practice, but it has abuse potential. Used outside the approved limits, its adverse mental and physical health effects can be hazardous. Prolonged use can lead to tolerance and psychological addiction.

Fast facts on ketamine:Here are some key points about ketamine. More detail is in the main article.

  • Ketamine is similar in structure to phencyclidine (PCP), and it causes a trance-like state and a sense of disconnection from the environment.
  • It is the most widely used anesthetic in veterinary medicine and is used for some surgical procedures in humans.
  • It is considered a “club drug,” like ecstasy, and it has been abused as a date-rape drug.
  • Ketamine should only be used as prescribed by a doctor.

 

What is ketamine?

ketamine and dissociation
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Ketamine can produce feelings of dissociation when used as a drug of abuse.

Ketamine belongs to a class of drugs known as dissociative anesthetics. It is also known as Ketalar, Ketanest, and Ketaset.

Other drugs in this category include the hallucinogen, phencyclidine (PCP), dextromethorphan (DXM), and nitrous oxide, or laughing gas.

These types of drugs can make a person feel detached from sensations and surroundings, as if they are floating outside their body.

 

Therapeutic uses

Ketamine is most often used in veterinary medicine. In humans, it can induce and maintain general anesthesia before, during, and after surgery.

For medical purposes, ketamine is either injected into a muscle or given through an intravenous (IV) line.

It is considered safe as an anesthetic, because it does not reduce blood pressure or lower the breathing rate.

The fact that it does not need an electricity supply, oxygen, or highly trained staff makes it a suitable option in less wealthy countries and in disaster zones.

In human medical practice, it is used in procedures such as:

  • cardiac catheterization
  • skin grafts
  • orthopedic procedures
  • diagnostic procedures on the eye, ear, nose, and throat
  • minor surgical interventions, such as dental extractions

It has been used in a hospital setting to control seizures in patients with status epilepticus (SE), a type of epilepsy that can lead to brain damage and death. However, researchers point out that ketamine is normally used for this purpose after 5 to 6 other options have proven ineffective. Ketamine for the treatment of refractory status epilepticus

It is also an analgesic, and, in lower doses, it can relieve pain.

In 2014, researchers found that a ketamine infusion significantly reduced symptoms of post-traumatic stress disorder (PTSD) in 41 patients who had undergone a range of traumas.

Efficacy of intravenous ketamine for treatment of chronic posttraumatic stress disorder

Researchers are looking into other possible medical uses of ketamine, particularly in the areas of treatment-resistant depression, suicide prevention, and substance use disorders. However, this use is controversial.

 

Treating depression

Researchers for the American Psychological Association (APA) noted in April 2017 that a number of doctors prescribe ketamine “off-label,” for people with treatment-resistant depression.

However, they caution:

While ketamine may be beneficial to some patients with mood disorders, it is important to consider the limitations of the available data and the potential risk associated with the drug when considering the treatment option.”

The FDA has not yet approved it for treating depression.

In a study published in BMC Medical Ethics, researchers urge doctors to “minimize the risk to patients” by considering carefully the evidence before prescribing ketamine off-label for patients to treat depression and prevent suicide.

Citing “questionable practice” regarding the prescription of ketamine, they point out that there is not enough evidence to prove that ketamine is safe, and that some studies supporting its use have not been sufficiently rigorous in terms of research ethics.

They call for open debate, more research, and for doctors to try all other options first, before prescribing ketamine.

The National Institutes of Health (NIH) are currently supporting research into whether ketamine may help people with treatment-resistant depression.

 

Effects

Ketamine use can have a wide variety of adverse effects, including:

  • drowsiness
  • changes in perceptions of color or sound
  • hallucinations, confusion, and delirium
  • dissociation from body or identity
  • agitation
  • difficulty thinking or learning
  • nausea
  • dilated pupils and changes in eyesight
  • inability to control eye movements
  • involuntary muscle movements and muscle stiffness
  • slurred speech
  • numbness
  • amnesia
  • slow heart beat
  • behavioral changes
  • increased pressure in the eyes and brain

It can also lead to a loss of appetite, upset stomach, and vomiting.

When used as an anesthetic in humans, doctors combine it with another drug to prevent hallucinations.

Risks

Ketamine is considered relatively safe in medical settings, because it does not affect the protective airway reflexes, and it does not depress the circulatory system, as other anesthetic medications do.

However, some patients have reported disturbing sensations when awakening from ketamine anesthesia.

Ketamine can cause an increase in blood pressure and intracranial pressure, or pressure in the brain.

People with the following conditions cannot receive ketamine for medical purposes:

  • brain swelling
  • glaucoma
  • brain lesion or tumor

It is used with caution in those with:

  • coronary artery disease
  • increased blood pressure
  • thyroid disease
  • chronic alcohol addiction
  • acute alcohol intoxication
  • aneurysm
  • chest pain
  • mental illness

These effects may be stronger in people aged over 65 years.

Some people may have an allergy to the ingredients. Patients with any type of allergy should tell their doctor before using any medication.

Anyone who is using this drug for therapeutic purposes on a regular basis should have regular blood pressure checks.

As a drug of abuse

Ketamine is most often used in the dance club setting as a party drug. It produces an abrupt high that lasts for about an hour. Users report euphoria, along with feelings of floating and other “out of body” sensations. Hallucinations, similar to those experienced with LSD, are common.

In 2014, 1.4 percent of 12th graders reported using ketamine for recreational purposes. This was down from 2002, when 2.6 percent reported using it.

Street names include:

  • Cat Valium
  • KitKat
  • Special K
  • Vitamin K
  • The horse tranquilizer
  • Ket
  • Purple
  • Super K
  • Jet

It is taken orally as a pill, snorted, smoked with tobacco or marijuana, or mixed into drinks. Most often, it is cooked into a white powder for snorting. Taken orally, it can cause severe nausea and vomiting.

Regardless of how it is ingested, its effects begin within a few minutes and last for less than an hour.

Higher doses can produce more intense effects known as being in the “K-hole,” where users become unable to move or communicate and feel very far away from their body.

Some users seek out this type of transcendental experience, while others find it terrifying and consider it an adverse effect.

Adverse effects

Unwanted effects include:

  • addiction
  • psychosis
  • amnesia
  • impaired motor function
  • high blood pressure
  • respiratory problems
  • seizures

As the user can become oblivious to their environment, ketamine abuse puts the person at risk of accidental injury to themselves and vulnerable to assault by others.

Problems with co-ordination, judgment, and the physical senses can continue for up to 24 hours. If an individual is using ketamine in a recreational setting, a sober friend should remain with them to ensure their safety.

Long-term effects include bladder and kidney problems, stomach pain, and memory loss.

If addiction and dependence develop, there is also a risk of depression.

Frequent, illegal use of ketamine can lead to serious mental disorders and major physical harm to the bladder, known as ketamine-induced ulcerative cystitis.

Ketamine and alcohol

Ketamine toxicity alone is unlikely to lead to death, according to the WHO. However, combining it with other substances, such as alcohol, can increase the sedative effects, possibly leading to a fatal overdose.

In the U.S., 1,550 emergency department (ED) visits were due to illegal ketamine use, and 71.5 percent of these also involved alcohol.

Overdose

The risk of overdose is high, because, for a recreational user, there is only a slight difference in dosage between obtaining the drug’s desired effects and an overdose.

Addiction

Ketamine is a Class III controlled substance. Prolonged use can cause dependence, tolerance, and withdrawal symptoms. Quitting can lead to depression, anxiety, insomnia, and flashbacks.

Chronic users have been known to “binge” their ketamine use in an attempt to experience again the dissociative, euphoric effects of their early first use.

The complications of long-term use can be fatal.

A final word

Ketamine is an anesthetic drug, used in human and veterinary medicine. It is important to distinguish the valid medical uses from the non-medical, recreational use of the drug.

When properly administered by a trained medical professional, ketamine is a safe and valuable medication.

Used in recreational settings, however, ketamine abuse can produce unpredictable physical and mental health results. In the long term, it can lead to psychological damage and, in some cases, death.

Any drug use should be prescribed by a doctor who knows the patient’s full medical history.

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At NOVA Health recovery [703-844-0184 | Fairfax, Va 22306 ] we offer our patients cutting-edge treatment options for their depression, and one of our main stars is IV (intravenous) ketamine. But why does it have to be IV? “I don’t like needles, why can’t I just take this as a pill or as that nasal spray everyone is talking about?” you may be thinking. IV is the best route for your brain to receive ketamine because of something called bioavailability. In addition, it is also more effective, more precise, and safer for you.

What is bioavailability? It is the amount of medication that your body and brain is actually able to use, which is sometimes different than the amount of medication that your body receives. When you take any medication, parts of the active ingredients in them don’t go to your bloodstream; they get digested, altered into an unusable form, metabolized and excreted into your body. This is particularly prevalent in oral and intranasal medications. In fact, receiving a medication intravenously is the only way to have 100% bioavailability. Let’s take a look at the different bioavailability percentages based on what route you receive ketamine:

Intravenous: 100%

Intramuscular: 93%
Intranasal: 25-50%
Sublingual (under the tongue): 30%
Orally (by mouth): 16-24%

When we give ketamine intravenously, we know exactly where your entire dose is going: straight to your brain. The same cannot be said for other forms of ketamine. Intranasal ketamine has to bypass several layers of tissue before it can reach your brain, and too many things can happen that could cause you to lose some or most of your dose: sneezing, dripping, running down the back of your throat, etc. The same can be said for an oral pill and an intramuscular injection; these routes are just too unpredictable, and when it comes to treating your depression, we don’t want the results to be unpredictable.

When you receive IV ketamine in our office setting, it is given slowly over one hour. By doing this, we are able to monitor you closely, and if you experience any unpleasant side effects and want to stop the infusion, we are able to do that. By contrast, a dose of ketamine via intranasal spray would be done at home with no physician or nursing supervision, so side effects cannot be immediately addressed if they arise. The same is true for intramuscular or oral dosing – after you take the pill, or receive a shot of ketamine into your muscle, there is no way to stop the absorption of the medication into your bloodstream as the full dose is administered within seconds.

IV ketamine is by far the safest and most effective approach in using ketamine to treat depression. You are in a comfortable setting with healthcare providers with you the whole time, the potential for side effects is low, and you are certain that the dose you receive is the dose that is going to your brain, maximizing the benefits of this cutting-edge treatment.

However, we do offer the other routes of administration and take – home prescriptions for Ketamine therapies for those who are in our program. Contact us today at 703-844-0184 to get started on your treatment.

 

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Ketamine infusion well-tolerated in small sample with mood disorders

703-844-0184 | Ketamine Treatment Center in Alexandria, Va . Callfor an appointment

Researchers observed no long-term adverse effects in a small sample of patients with severe and treatment-resistant mood disorders who received ketamine infusions as clinical treatment.

Although the response and remission rates after a four-infusion protocol were lower than those reported in most clinical trials, the small size and racial homogeneity of the study population limit the generalizability of these findings, according to data published in Journal of Clinical Psychiatry.

“Ketamine is being used as an off-label treatment for depression by an increasing number of providers, yet there is very little long-term data on patients who have received ketamine for more than just a few weeks,” Samuel T. Wilkinson, MD, from the department of psychiatry, Yale School of Medicine and Yale Psychiatric Hospital, told Healio Psychiatry.

“Controversy remains about whether ketamine should be used outside of research protocols due to concerns regarding potential negative clinical outcomes for repeated use, including impaired cognition, delusions and interstitial cystitis,” Wilkinson and colleagues wrote in their article.

Ketamine treatments were given in an electroconvulsive therapy suite. In late 2014, Yale began providing ketamine as an off-label therapy on a case-by-case basis for patients who could not participate in research protocols. In the current article, the authors assessed the participants’ experience over 29 months of providing ketamine as a clinical treatment for severe and treatment-resistant mood disorders.

At first, patients received a single- or double-infusion protocol (0.5 mg/kg over 40 minutes IV); but in early 2015, the researchers transitioned to a four-dose protocol over 2 weeks based on emerging evidence supporting the safety of a multiple-infusion protocol. They tracked symptom severity and set cognitive assessments at baseline and after every 6 to 12 treatments.

From October 2014 through February 2017, 54 patients received ketamine, with 518 total infusions performed. Ketamine infusions given at 0.5 mg/kg over 40 minutes were well-tolerated. Two patients discontinued treatment prematurely: one for intolerable dissociative effects and one for transient hypertension.

In the subset of 44 patients with mood disorders who began the four-infusion protocol, 45.5% responded and 27.3% remitted by the fourth infusion, which were lower rates than those reported in most previous clinical trials, according to the authors. Patients showed a significant reduction in symptoms over time. The overall mean score, as measured by the Quick Inventory of Depressive Symptomatology (Self-Report), dropped by 37.9% and the overall mean depression score dropped by 37.8%.

“While our paper has a number of limitations, one of its strengths is the long-term follow-up of a small cohort of patients who have received ketamine for depression, some for over a year,” Wilkinson told Healio Psychiatry. “Though we were not able to follow patients with the same level of rigor as a sponsored clinical trial, we observed no obvious adverse long-term effects on cognition, development of psychosis, or new-onset cases of ketamine abuse.”

In a subsample of 14 patients who received long-term ketamine infusions ranging from 12 to 45 total treatments over a course of 14 to 126 weeks, there was no evidence of cognitive decline, increased inclination for delusions or emerging symptoms consistent with cystitis.

“There remains an urgent need for more powerful and comprehensive long-term safety data on ketamine from much larger samples,” Wilkinson and colleagues wrote.

“Given that racemic ketamine hydrochloride no longer has patent protections, it is unlikely that large and long-term clinical trials will be conducted to provide such long-term safety data,” they continued. “The formation of a registry combining data from community and academic sites is therefore the most realistic way of capturing long-term data on the effectiveness and safety of ketamine as a treatment for mood disorders.” 

 

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Ketamine is emerging as a popular treatment for depression. New research suggests the drug acts like an opioid

 

Ketamine is emerging as a popular treatment for depression. New research suggests the drug acts like an opioid

  • Ketamine is emerging as a way to treat depression, but it appears to act like an opioid, Stanford researchers found.
  • Clinics are cropping up around the country where people receive ketamine infusions.
  • A handful of pharmaceutical companies, including Johnson & Johnson and Allergan, are using ketamine as inspiration for new prescription drugs to treat depression.

This is a vial of the animal tranquilizing drug ketamine hydrochloride, better known in the drug culture as "Special K."
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This is a vial of the animal tranquilizing drug ketamine hydrochloride, better known in the drug culture as “Special K.”

Ketamine is emerging as a way to treat depression, but it appears to act like an opioid — and it may carry similar risks, Stanford researchers found.

Clinics are cropping up around the country where people receive ketamine infusions. A handful of pharmaceutical companies are using ketamine as inspiration for new prescription drugs to treat depression. Yet the new research questions whether scientists know enough about chronic ketamine use to introduce it broadly.

The drug blocks NMDA receptors, which scientists think may treat depressive symptoms. Researchers wanted to test whether it was possible to elicit this reaction without activating the brain’s opioid receptors.

To block an opioid response, they gave participants naltrexone then infused them with ketamine. To compare that response with the normal response, they also gave participants a placebo before giving them the treatment.

Naltrexone so successfully blocked the anti-depressant effects of ketamine that researchers cancelled the study after the first interval because they felt it wasn’t ethical to continue it, said Dr. Nolan Williams, one of the study’s authors and a clinical assistant professor of psychiatry and behavioral sciences at Stanford University.

When patients took naltrexone, the opioid blocker, their symptoms did not improve, suggesting ketamine must first activate opioid receptors in order to treat depression, according to the study, published Wednesday in the American Journal of Psychiatry.

That’s not to say ketamine cannot be used occasionally, but it does raise questions about using it repeatedly over time, said Dr. Alan F. Schatzberg, co-author of the study and Stanford’s Kenneth T. Norris, Jr., professor of psychiatry and behavioral sciences. He likens it to opioid painkillers being an appropriate pain treatment when used once in the emergency room but posing problems, such as the risk of dependence, when used chronically.

“More studies need to be done to fully understand ketamine before it’s widely rolled out for long-term chronic use,” Schatzberg said.

Researchers planned on studying 30 adults but stopped enrolling patients once they decided combining ketamine and naltrexone was not only ineffective but also “noxious” for many participants. They tested a total of 12 people with both naltrexone and the placebo.

Of those 12, seven who received naltrexone experienced nausea after the ketamine infusion, compared to three in the placebo group. Two participants in each group also experienced vomiting.

Participants who received the placebo and ketamine treatment reported reduced depression symptoms. But those same participants did not see a decrease in depression symptoms after receiving ketamine and opioid-blocker naltrexone.

“We essentially blocked the mechanism for producing the anti-depressant effect, which were opioids,” said Williams.

The findings may have implications for clinics offering ketamine infusions and drug manufacturers trying to commercialize ketamine-like drugs.

Ketamine is meant to be used as an anesthetic. Since ketamine is currently not indicated to treat depression, insurance typically doesn’t cover the cost of infusions, so people tend to pay out of their own pocket. One session can run more than $500.

Meanwhile, drug giant Johnson & Johnson plans to seek approval from the Food and Drug Administration for its nasal spray esketamine this year after reporting positive results from a Phase 3 trial. Allergan plans to file its drug Rapastinel, which targets the NMDA receptors like ketamine, within the next two years. VistaGen Therapeutics is working on a similar drug.

In a statement, J&J said while the study reviewed ketamine and not esketamine, the findings “are difficult to interpret because of the study’s design.”

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Trippy depression treatment? Hopes and hype for ketamine

703-844-0184 | Ketamine Treatment Center | Fairfax , VA 22306 | Loudon, Va

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Lauren Pestikas sits as she receives an infusion of the drug ketamine during a 45-minute session at an outpatient clinic in Chicago on July 25, 2018. Pestikas struggled with depression and anxiety and made several suicide attempts before starting ketamine treatments earlier in the year. (AP Photo/Teresa Crawford)

CHICAGO (AP) — It was launched decades ago as an anesthetic for animals and people, became a potent battlefield pain reliever in Vietnam and morphed into the trippy club drug Special K.

Now the chameleon drug ketamine is finding new life as an unapproved treatment for depression and suicidal behavior. Clinics have opened around the United States promising instant relief with their “unique” doses of ketamine in IVs, sprays or pills. And desperate patients are shelling out thousands of dollars for treatment often not covered by health insurance, with scant evidence on long-term benefits and risks.

Chicago preschool teacher Lauren Pestikas long struggled with depression and anxiety and made several suicide attempts before trying ketamine earlier this year.

The price tag so far is about $3,000, but “it’s worth every dime and penny,” said the 36-year-old.

Pestikas said she feels much better for a few weeks after each treatment, but the effects wear off and she scrambles to find a way to pay for another one.

For now, ketamine has not received approval from the U.S. Food and Drug Administration for treating depression, though doctors can use it for that purpose.

Some studies show ketamine can provide relief within hours for tough-to-treat depression and suicidal behavior and clinics promising unproven benefits have popped up nationwide. But more research is needed to know long-term benefits and risks. (Oct. 31)

Ketamine has been around since the 1960s and is widely used as an anesthesia drug during surgery because it doesn’t suppress breathing. Compared to opioids such as morphine, ketamine isn’t as addictive and doesn’t cause breathing problems. And some studies have shown that ketamine can ease symptoms within hours for the toughest cases.

Its potential effects on depression were discovered in animal experiments in the late 1980s and early 1990s showing that glutamate, a brain chemical messenger, might play a role in depression, and that drugs including ketamine that target the glutamate pathway might work as antidepressants.

Conventional antidepressants like Prozac target serotonin, a different chemical messenger, and typically take weeks to months to kick in — a lag that can cause severely depressed patients to sink deeper into despair.

703-844-0184 | Ketamine Treatment Center | Fairfax , VA 22306 | Loudon, Va

A vial of ketamine, which is normally stored in a locked cabinet, on display in Chicago on July 25, 2018. AP Photo/Teresa Crawford)

Ketamine’s potential for almost immediate if temporary relief is what makes it so exciting, said Dr. Jennifer Vande Voort, a Mayo Clinic psychiatrist who has used ketamine to treat depression patients since February.

“We don’t have a lot of things that provide that kind of effect. What I worry about is that it gets so hyped up,” she said.

The strongest studies suggest it’s most useful and generally safe in providing short-term help for patients who have not benefited from antidepressants. That amounts to about one-third of the roughly 300 million people with depression worldwide.

“It truly has revolutionized the field,” changing scientists’ views on how depression affects the brain and showing that rapid relief is possible, said Yale University psychiatrist Dr. Gerard Sanacora, who has done research for or consulted with companies seeking to develop ketamine-based drugs.

But to become standard depression treatment, he said, much more needs to be known.

Last year, Sanacora co-authored an American Psychiatric Association task force review of ketamine treatment for mood disorders that noted the benefits but said “major gaps” remain in knowledge about long-term effectiveness and safety. Most studies have been small, done in research settings and not in the real world.

When delivered through an IV, ketamine can cause a rapid increase in heart rate and blood pressure that could be dangerous for some patients. Ketamine also can cause hallucinations that some patients find scary.

“There are some very real concerns,” Sanacora said. “We do know this drug can be abused, so we have to be very careful about how this is developed.”

Dr. Rahul Khare, an emergency medicine specialist in Chicago, first learned about ketamine’s other potential benefits a decade ago from a depressed and anxious patient he was preparing to sedate to fix a repeat dislocated shoulder.

“He said, ‘Doc, give me what I got last time. For about three weeks after I got it I felt so much better,’” Khare recalled.

Khare became intrigued and earlier this year began offering ketamine for severe depression at an outpatient clinic he opened a few years ago. He also joined the American Society for Ketamine Physicians, formed a year ago representing about 140 U.S. doctors, nurses, psychologists and others using ketamine for depression or other nonapproved uses.

703-844-0184 | Ketamine Treatment Center | Fairfax , VA 22306 | Loudon, Va

Dr. Rahul Khare poses for a portrait at his outpatient Chicago clinic on July 25, 2018. (AP Photo/Teresa Crawford)

There are about 150 U.S. ketamine clinics, compared with about 20 three years ago, said society co-founder Dr. Megan Oxley.

Khare said the burgeoning field “is like a new frontier” where doctors gather at meetings and compare notes. He has treated about 50 patients with depression including Pestikas. They’re typically desperate for relief after failing to respond to other antidepressants. Some have lost jobs and relationships because of severe depression, and most find that ketamine allows them to function, Khare said.

Typical treatment at his clinic involves six 45-minute sessions over about two weeks, costing $550 each. Some insurers will pay about half of that, covering Khare’s office visit cost. Patients can receive “booster” treatments. They must sign a four-page consent form that says benefits may not be long-lasting, lists potential side effects, and in bold letters states that the treatment is not government-approved.

At a recent session, Pestikas’s seventh, she leaned back on a reclining white examining-room chair as a nurse hooked her up to a heart and blood pressure monitor. She grimaced as a needle was slipped into the top of her left palm. Khare reached up with a syringe to inject a small dose of ketamine into an IV bag hanging above the chair, then dimmed the lights, pulled the window curtains and asked if she had questions and was feeling OK.

“No questions, just grateful,” Pestikas replied, smiling.

Pestikas listened to music on her iPhone and watched psychedelic videos. She said it was like “a controlled acid trip” with pleasant hallucinations. The trip ends soon after the IV is removed, but Pestikas said she feels calm and relaxed the rest of the day, and that the mood boost can last weeks.

Studies suggest that a single IV dose of ketamine far smaller than used for sedation or partying can help many patients gain relief within about four hours and lasting nearly a week or so.

Exactly how ketamine works is unclear, but one idea is that by elevating glutamate levels, ketamine helps nerve cells re-establish connections that were disabled by depression, said ketamine expert Dr. Carlos Zarate, chief of experimental therapies at the National Institute of Mental Health.

A small Stanford University study published in August suggested that ketamine may help relieve depression by activating the brain’s opioid receptors.

Janssen Pharmaceuticals and Allergan are among drug companies developing ketamine-like drugs for depression. Janssen leads the effort with its nasal spray esketamine. The company filed a new drug application in September.

Meanwhile, dozens of studies are underway seeking to answer some of the unknowns about ketamine including whether repeat IV treatments work better for depression and if there’s a way to zero in on which patients are most likely to benefit.

Until there are answers, Zarate of the mental health institute said ketamine should be a last-resort treatment for depression after other methods have failed.

 

Ketamine in the News October 2018

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The pros and cons of ketamine

Geuris “Jerry” Rivas, a native of New York, was diagnosed with severe obsessive-compulsive disorder when he was 15. Obsessions with organizing and reorganizing the belongings in his bedroom — posters, comic books, videos — took over most of his life.

Forced by germ obsessions to compulsively wash and rewash his hands, he started wearing gloves all day to both protect him from the germs and stop him from washing his hands raw. Now, at 36, OCD symptoms continue to cost him jobs and relationships. He’s managed to turn his organizational skills into a profession — he’s a home organizer and house cleaner — but still he struggles daily with his obsessions.

“It’s caused me a great deal of suffering,” Rivas says. “I’ve tried many, many medications. I’ve wasted so much of my life.”

In 2012, running out of answers, Rivas took part in the first clinical trial to test ketamine as a treatment for OCD. While ketamine is approved by the U.S. Food and Drug Administration as an anesthetic, it is also an illicit party drug known as “Special K,” with hallucinogenic effects and the potential for abuse. Over the past 10 years, dozens of small studies of ketamine’s ability to treat a variety of mood and anxiety disorders have reported remarkable results — including the sudden alleviation of treatment-resistant depression, bipolar disorder and post-traumatic stress disorder. And these effects lasted days, sometimes weeks, after the hallucinogenic effects of the drug wore off.

With a single infusion of the drug, Rivas experienced for two weeks what it was like to live without the compulsions and obsessions that had for years controlled his life.

“I felt like, for the first time, I was able to function like a regular person,” he says.

Illustration of a giant K being painted by a man in a white coat

Pros and cons

Ketamine has brought hope to a psychiatric field desperate to find new treatments for severe OCD, a chronic condition marked by debilitating obsessions and repetitive behaviors. Current treatments, which include antidepressants such as Prozac, can take months to have any effect on the disease, if they work at all.

“Severe OCD takes such a toll on patients,” says Carolyn Rodriguez, MD, PhD, who as a researcher at Columbia University ran the OCD trial. Now an assistant professor of psychiatry and behavioral sciences at Stanford, she has continued to explore the pros and cons of using ketamine to treat OCD. “The constant, intrusive thoughts that something is contaminated, the checking and rechecking, the repetitive behaviors. It interferes with your life, your jobs, your relationships.”

Ketamine was developed in the 1960s and has been used for decades as an anesthetic during surgery. It remains a mystery just how the drug works in the brain, and there are safety concerns. There is evidence from people who take the drug routinely — in much higher doses — that chronic, high-frequency ketamine use may be associated with increased risk of bladder inflammation and cognitive impairment, Rodriguez says. And if taken regularly, it can lead to dependence.

But researchers like Rodriguez are intrigued about the drug’s potential to help them identify a whole new line of medicines for fast-acting treatment of mental health disorders.

“What most excites me about ketamine is that it works in a different way than traditional antidepressants,” Rodriguez says. “Using ketamine, we hope to understand the neurobiology that could lead to safe, fast-acting treatments. I feel that is part of my mission as a physician and researcher.”

‘Right out of a movie’

Rodriguez’s interest in ketamine as a treatment for OCD was sparked about a decade ago when she was starting out as a research scientist at Columbia. A small, placebo-controlled study published in 2006 by a mentor of hers, Carlos Zarate, MD, now chief of the section on neurobiology and treatment of mood disorders at the National Institute of Mental Health, had shown that ketamine induced dramatic improvement in treatment-resistant depression within two hours of infusion. It was a landmark study, drawing attention among the psychiatric community and launching a new field of research into the use of ketamine to treat various mood and anxiety disorders.

“What most excites me about ketamine is that it works in a different way than traditional antidepressants.”

Rodriguez, intent on searching for better, faster treatments for her patients like Rivas with OCD, took note. There was an emerging theory that ketamine affects the levels of the neurotransmitter glutamate in the brain and increasing evidence that glutamate plays a role in OCD symptoms, she says. Perhaps ketamine could help regulate OCD symptoms as well as depression.

In 2013, Rodriguez and colleagues published their results from that first clinical trial of ketamine in OCD patients. The trial randomized 15 patients with OCD to ketamine or placebo.

In those patients who were given ketamine, the effect was immediate. Patients reported dramatic decreases in their obsessive-compulsive symptoms midway through the 40-minute infusion, according to the study. The diminished symptoms lasted throughout the following week in half of the patients. Most striking were comments by the patients quoted in the study: “I tried to have OCD thoughts, but I couldn’t,” said one. Another said, “I feel as if the weight of OCD has been lifted.” A third said, “I don’t have any intrusive thoughts. … This is amazing, unbelievable. This is right out of a movie.” And while nearly all initially had dissociative effects like feelings of unreality, distortions of time or hallucinations, they were gone within two hours after the start of the infusion.

“Carolyn’s study was quite exciting,” Zarate says, adding that there were a number of similar, small but rigorous studies following his 2006 study that found fast-acting results using ketamine to treat bipolar disorder and post-traumatic stress disorder.

“We had no reason to believe that ketamine could wipe out any symptoms of these disorders within hours or days,” he says.

So how does it work?

Virtually all of the antidepressants used in the past 60 years work the same way: by raising levels of serotonin or one or two other neurotransmitters. Ketamine, however, doesn’t affect serotonin levels. Exactly what it does remains unclear.

“There’s a recognition that people like me and others are using the drug to treat patients now. There’s an incredible need for something.”

Since coming to Stanford in 2015, Rodriguez has been funded by the National Institute of Mental Health for a large clinical trial of ketamine’s effects on OCD. This five-year trial aims to follow 90 OCD patients for as long as six months after they’ve been given a dose of ketamine or an alternative drug. Rodriguez and her research team want to observe how ketamine changes participants’ brains, as well as test for side effects.

Ultimately, Rodriguez says, she hopes the study will lead to the discovery of other fast-acting drugs that work in the brain like ketamine but without its addictive potential.

Recent research in the field indicates that the glutamate hypothesis that triggered her pilot study might be further refined.

“Ketamine is a complicated drug that works on many different receptor sites,” she says. “Researchers have fixated on the NMDA receptor, one of the glutamate-type receptors, but it might not be the only receptor bringing benefit.”

In May 2016, researchers from NIMH and the University of Maryland — Zarate among them — published a study conducted in mice showing that a chemical byproduct, or metabolite, created as the body breaks down ketamine might hold the secret to its rapid antidepressant actions. This metabolite, hydroxynorketamine, reversed depressionlike symptoms in mice without triggering any of the anesthetic, dissociative or addictive side effects associated with ketamine, Zarate says.

“Ideally, we’d like to test hydroxynorketamine and possibly other drugs that act on glutamate pathways without ketamine-like side effects as possible alternatives to ketamine in OCD,” Rodriguez says.

Beyond the clubs

Meanwhile, dozens of commercial ketamine clinics have popped up across the country, making treatments available to patients who are searching for help to stop their suffering now. Medical insurance companies usually cover ketamine’s FDA-approved use as an anesthetic but won’t cover its use for other purposes, such as mental health disorders. So patients who have run out of treatment options are paying hundreds of dollars a dose for repeated ketamine infusions.

“The fact that these clinics exist is due to the desperation of patients,” says Rodriguez.

She and other researchers are calling for guidelines to protect patients and more research to learn how to use the drug safely.

“I think it’s a game changer, and it’s here to stay,” says David Feifel, MD, PhD, professor emeritus of psychiatry at UC-San Diego, who studies the effect of ketamine on clinical depression. Feifel began prescribing the drug for patients with treatment-resistant depression in 2010.

“I’ve found it to be very safe,” Feifel says, adding that the American Psychiatric Association this year issued safety guidelines on how to use ketamine clinically for treatment of depression.

“There’s a recognition that people like me and others are using the drug to treat patients now,” he says. “There’s an incredible need for something.”

The drug hasn’t worked for everyone he’s treated, Feifel says, but for many it’s been “life-changing.”

Rodriguez says she understands what motivates the clinicians to prescribe the drug now to patients in dire straits — those who are suicidal or who have tried every possible medication and therapeutic option and continue to suffer each day.

“I see it as a way to treat people whose OCD is very, very severe,” she says. “People who can’t come out of the house, who are suicidal, who have no other options.

“I just don’t like the idea of people being in pain,” Rodriguez adds. “I want to see science translated into treatments now.”

Meanwhile, researchers are learning more about the drug. Janssen Pharmaceutical is testing the efficacy of a version of ketamine, known as esketamine, as a therapy for treatment-resistant depression and for major depressive disorder with imminent risk for suicide. The FDA has fast-tracked both investigations. At Stanford, Alan Schatzberg, MD, a professor of psychiatry and behavioral sciences, along with other faculty including Rodriguez, is studying the mechanism of action for ketamine in treating depression.

Rodriguez is also interested in using ketamine to kick-start a type of cognitive behavioral therapy called exposure and response prevention, an evidence-based psychological treatment designed to help patients overcome OCD. The therapy involves teaching patients with OCD to face anxieties by refraining from ritualizing behaviors, then progressing to more challenging anxieties as they experience success.

Relaxation and other techniques also help patients tolerate their anxiety — for example, postponing the compulsion to wash their hands for at least 30 minutes, then extending that time period.

“My goal isn’t to have people taking ketamine for long periods of time,” Rodriguez says. But perhaps a short-term course of ketamine could provide its own kind of exposure and response prevention by allowing patients to experience that it is possible not to be controlled by their OCD, she says.

Rivas well remembers that infusion of ketamine he received during Rodriguez’s first clinical trial to test the drug. The rush made him feel “like Superman.”

“I felt like my body was bigger, that I was more muscular, that I could tackle anything,” he says. But that feeling only lasted the duration of the 40-minute infusion. His OCD symptoms disappeared immediately and were still gone for two weeks after.

“I was amazed that something like that would work and work so fast,” he says. His OCD symptoms today are still intrusive, but he manages to keep them under control by taking antidepressants and seeing a therapist. Still, each day when he comes home from work, he has to put gloves on before he enters his apartment building, and as soon as he enters his apartment, he must wash his hands.

“It’s a ritual now,” he says. “There has never been a time that I haven’t done that, except those two weeks after the ketamine.”

When he heard that certain private ketamine clinics are now offering the drug as treatment for OCD, he said he understands why patients take the risks and pay the high prices. As more research has become available, he’s begun considering it himself.

“I’ve been suffering through my OCD for so long, I’ve gotten to the point where I’d try anything,” he says.

USING KETAMINE TO TREAT SEVERE MENTAL ILLNESS conversation with Stanford psychiatrist Carolyn Rodriguez, MD, PhD, about how she got interested in the use of ketamine to treat obsessive-compulsive disorder and how she is determined to find out why, in studies, the drug has provided relief from symptoms.

KETAMINE For Obsessive-Compulsive Disorder | Depression | 703-844-0184 | FAIRFAX, VA | LOUDON, VA| LORTON, VA | |Ketamine For Obsessive Compulsive Disorder| 22308 |22304

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CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

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Randomized Controlled Crossover Trial of Ketamine in
Obsessive-Compulsive Disorder: Proof-of-Concept

Ketamine for Obsessive-compulsive disorder  <ARTICLE

Ketamine has effectiveness on the short run when it comes to treating Obsessive-compulsive disorders:

Serotonin reuptake inhibitors (SRIs), the first-line pharmacological treatment for obsessive-compulsive disorder (OCD), have two
limitations: incomplete symptom relief and 2–3 months lag time before clinically meaningful improvement. New medications with faster
onset are needed. As converging evidence suggests a role for the glutamate system in the pathophysiology of OCD, we tested whether a
single dose of ketamine, a non-competitive N-methyl-D-aspartate (NMDA) glutamate receptor antagonist, could achieve rapid antiobsessional
effects. In a randomized, double-blind, placebo-controlled, crossover design, drug-free OCD adults (n ¼ 15) with near-constant
obsessions received two 40-min intravenous infusions, one of saline and one of ketamine (0.5 mg/kg), spaced at least 1-week
apart. The OCD visual analog scale (OCD-VAS) and the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) were used to assess OCD
symptoms. Unexpectedly, ketamine’s effects within the crossover design showed significant (po0.005) carryover effects (ie, lasting
longer than 1 week). As a result, only the first-phase data were used in additional analyses. Specifically, those receiving ketamine (n ¼ 8)
reported significant improvement in obsessions (measured by OCD-VAS) during the infusion compared with subjects receiving placebo
(n ¼ 7). One-week post-infusion, 50% of those receiving ketamine (n ¼ 8) met criteria for treatment response (X35% Y-BOCS
reduction) vs 0% of those receiving placebo (n ¼ 7). Rapid anti-OCD effects from a single intravenous dose of ketamine can persist for at
least 1 week in some OCD patients with constant intrusive thoughts. This is the first randomized, controlled trial to demonstrate that a
drug affecting glutamate neurotransmission can reduce OCD symptoms without the presence of an SRI and is consistent with a
glutamatergic hypothesis of OCD.

 

Ketamine is a noncompetitive antagonist of the NMDA
receptor (a type of glutamate receptor). Studies in patients
with unipolar and bipolar depression have found that a
single intravenous infusion of ketamine can have antidepressant
effects within 40 min of starting the infusion.
These effects persist for 3–18 days, long after the drug has
cleared the patient’s system (Berman et al, 2000;
Diazgranados et al, 2010a, b; Murrough et al, 2012; Valentine
et al, 2011; Zarate et al, 2006, 2012a). We treated an
unmedicated individual with OCD with ketamine (0.5 mg/kg
IV over 40 min) and found rapid anti-obsessional effects that
returned to baseline by 1-week post-infusion (Rodriguez
et al, 2011). Bloch et al (2012) conducted an open ketamine
trial in 10 subjects with OCD and found modest but
statistically significant improvement in OCD symptoms
over days 1–3 following ketamine infusion compared with
baseline; however, most subjects in this study were taking
multiple other medications at the time of infusion.