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Trippy depression treatment? Hopes and hype for ketamine

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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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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.

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Ask The Doctor: “Ketamine For Depression: Progress And Pitfalls” With Dr. Cristina Cusin, M.D.  < Webinar Link

Old Club Drug Is Repurposed Into Depression Treatment

A North Texas woman said a popular club drug and animal tranquilizer saved her from a life of depression and suicidal thoughts.

You may have heard of the drug before, as Special K on the street. it was designed as a horse tranquilizer, but Ketamine is gaining popularity as a treatment for depression.

Some doctors believe the controversial drug will become a game-changer in slowing the nation’s suicide epidemic.

Tiffany McCombie, a 40-year-old mother of one, knows what depression feels like in its darkest moments.

“I definitely was feeling what I would consider suicidal, not really wanting to live, not really wanting to die, just numb. That’s not a healthy place for me,” McCombie said.

She said she has lived with depression and Bipolar disorder for 30 years, has tried dozens of medications and supplements to combat it, but nothing, she said, has worked as well as the Ketamine infusions she gets at Rise Wellness Center.

She’s had six of them in ten months.”I had the right attitude and wanted to be healed and believing that it was going to happen for me and my brain. It happened. It cut down the mood stabilizers and antidepressants I had been on for years. I don’t take them at all,” she said.

More studies,like this one, are finding that Ketamine may be more effective and work faster than traditional antidepressants.

A local team of anesthesiologists had used the drug before, as an anaesthetic inside the operating room, but after seeing its potential to treat depression, they opened Rise Wellness Center, which specializes in Ketamine infusions.

“We get people that are so far down and so dark that we need this to get them out, to get them up, to get them moving. No drug does that like Ketamine,” said Dr.  Renaud Rodrigue, a pain management physician at Rise Wellness Center.

Experts say Ketamine can be dangerous, even deadly, if abused or taken in large doses.

Even though it’s not FDA-approved to treat depression, Dr. Rodrigue said, when given in small doses and in a clinical setting, 90 percent of his patients with severe depression reported long-term benefits.

Researchers at the University of Illinois published this study about how Ketamine may trigger a depression-fighting protein in the brain.

“This protein changed the game for us. We know now there’s something that is created just by the drug itself, which is staying in the central nervous system and is exerting this affect way beyond the duration of the drug,” said Dr. Rodrigue.

McCombie said Ketamine saved her life.

Could Ketamine conquer Treatment resistant depression?

A notorious drug that can cause dangerous hallucinations and even death when abused may be the key to treating severely depressed patients when used under proper physician care. UT Southwestern’s Dr. Lisa Monteggia has uncovered how the drug Ketamine works so rapidly and why patients are seeing success when other treatments have failed.

Transcript

{Video opens with music and pictures of UTSW patient Megan Joyce along with her mother and with her husband.}

Megan Joyce: Everything in my life seems great.

Narrator: Megan Joyce’s life may look picture perfect.

Megan: I graduated college. I got married. He’s an amazing person. He is incredibly supportive.

Narrator: But what these happy photos hide is a relentless inner struggle.

Megan: This is not something that I love to admit, but I fight for my life every single day.

Narrator: The 27-year-old has spent more than a decade battling severe depression. It triggers for no obvious reason.

Megan: They have defined my bipolar illness as treatment resistant.

Narrator: She says she tried every medication in the books … as well as checking into inpatient and outpatient treatment centers. Nothing worked. Until doctors at UT Southwestern Medical Center tried something bold. Ketamine infusion therapy.

Megan: I don’t know if I would be here without the Ketamine treatment. I drive from Austin every 10 days, and I come for treatment, and I’m in the hospital for about 5 hours, and then I go home the same day.

Narrator: Several studies show ketamine can quickly stabilize severely depressed patients. But it does come with risks.

Dr. Madhukar Trivedi: There is a risk for addiction so that if people start taking Ketamine on their own on the black market, then that can be very dangerous. There are toxic effects in the brain if you overdose. On the other hand, for patients who do well on this and are getting the right dose under the guidance of a physician, it can be life saving.

Megan: When I have the IV in, it’s for 40 minutes, and then I stay for 2 hours after because it is an anesthetic so they want to make sure you don’t have adverse side effects.

Narrator: Dr. Madukhar Trivedi is closely monitoring Joyce … as well as the work his colleagues are doing at the bench.

Dr. Trivedi: At UT Southwestern, we have the whole breadth of work being done. There are people working like Dr. Monteggia in basic research. Understanding the exact mechanism of how Ketamine changes molecularly and changes the mechanism of action.

Dr. Lisa Monteggia: We got involved with how Ketamine triggers an anti-depressant effect because of the real need. Some of the recent clinical data has really shown that about a third of all patients don’t respond to anti-depressants. So, what do you do for treatment for those individuals?

Narrator: UT Southwestern’s Dr. Lisa Monteggia is a neuroscientist whose lab pinpointed a key protein that helps tigger Ketamine’s rapid antidepressent effects in the brain. Whereas traditional antidepressents can take up to 8 weeks to work, the effects of ketamine are seen within 60 to 90 minutes.

Dr. Monteggia: The idea of trying to understand how you generate a rapid anti-depressant response in patients … it’s really the first time we’ve been able to study it.

Narrator: Her study, published in the prestigious journal Nature, shows that ketamine blocks a protein responsible for a range of normal brain functions.

Dr. Monteggia: How we think Ketamine triggers an anti-depressant effect, this blocking the NMDA receptor, we think may also be causing the side effects associated with Ketamine. One of the things we’re working on is to try and see if we can identify compounds, slight derivatives perhaps, that may have the beneficial effects of Ketamine, in terms of triggering anti-depressant effects, without the side effects.

Narrator: In the meantime, Joyce remains optimistic for her future and the millions of others trying to defeat depression.

Megan: That’s why I really sought out Ketamine is I really wanted to give back and just have a chance at a semi-normal life.

Depression Patients Turning to Local Doctor’s Ketamine Therapy

The deaths of designer Kate Spade on Tuesday and TV Chef Anthony Bourdain Friday morning are bringing new attention to depression and suicide.

A new Center for Disease Control and Prevention report reveals suicide rates have risen 30 percent across much of the country since 1999.

But right here in San Diego, there is hope for a category of patients some doctors call “the untreatable.”

This patient, we’ll call Lisa, is composing a letter to the editor about her 20-year fight to stay alive.

“I know how tall the bridge is. I know how many seconds it takes to land,” Lisa said.

Lisa is an attorney with severe depression. Conventional medicines could not suppress her suicidal thoughts.

“It’s awful,” she said. “The day starts with waking up thinking ‘Can I even get out of bed?’ You just fight it to exhaustion every single day.”

She was referred to Dr. David Feifel who NBC 7 first also spoke to three years ago. Patients travel from as far away as Canada to undergo his Ketamine therapy.

“Sort of a psychedelic experience. It’s also been termed dissociative experience because it is sort of an out-of-body feeling,” Dr. Feifel said of his therapy.

Dr. Feifel says low doses of Ketamine have an almost immediate effect on his patients, unlike conventional anti-depressants that can take weeks to build up a therapeutic level.

While Ketamine doesn’t stay in the body more than a day, its effects can last for months.

“It seems to be able to vaporize people’s sense of wanting to take their life.” Dr. Feifel said.

Lisa has received some 35 treatments over the last four months.

“I walk in here crappy, I’ll leave happy. It is a remarkable, remarkable experience that in 20 years nothing has ever come close” Lisa said.

Her goal is to need fewer treatments and experience longer-lasting effects.

Lisa’s hope for the so-called “untreatable community” of depressed people is they find help.

Ketamine-Associated Brain Changes – A Review of the Neuroimaging Literature

KEY POINTS:

                  Ketamine-Associated Brain Changes: A Review of the Neuroimaging Literature

Subanesthetic doses of ketamine have rapid (within hours), robust (across a variety of symptoms), and relatively sustained (typically up to one week) antidepressant effects—even in patients with TRD (treatment resistant depression). Clinical studies show that about 50% of patients with TRD have a significant decrease in symptoms within 24 hours of a single intravenous subanesthetic ketamine dose.

Animal models show that ketamine’s antidepressant effects are likely mediated by its antagonism of N-methyl-D-aspartate (NMDA) receptors through increased α-amino-3-hydroxy-5- methyl-4-isoxazolepropionic acid (AMPA)–mediated glutamatergic signaling. This triggers activation of intracellular synaptogenic pathways, most notably in the mechanistic target of rapamycin (mTOR)–signaling pathway, which also has implications in many other psychiatric disorders.

With regard to MDD patients, decreased glutamate has been noted in various prefrontal regions, including the dorsolateral prefrontal cortex (dlPFC), dorsomedial PFC (dmPFC), and anterior cingulate cortex (ACC), when compared to controls.8–10 This shortage of glutamate makes ketamine an ideal treatment for MDD; by creating a surge in glutamate levels in regions of the brain that suffer from a glutamate deficit, ketamine may provide some normalization of glutamate levels in patients with MDD. This “glutamate surge” hypothesis has dominated as the primary theory of ketamine’s antidepressant mechanism.

Ketamine may work through additional receptors, as it is known to have effects on several opioid receptors, adrenergic receptors, and several serotonin and norepinephrine transporters.17–19 It is also possible that acute dissociative side effects of ketamine may be mediating antidepressant response.

One salient biological metric that may provide insight into ketamine’s mechanism of action is related to dissociation. Dissociative side effects begin from infusion, reach a peak typically within an hour of infusion, and are completely diminished 230 minutes after infusion.20 The same study has shown that increased dissociation and psychotomimetic symptoms immediately following infusion may predict antidepressant response. (Luckenbaugh DA, Niciu MJ, Ionescu DF, et al. Do the dissociative side effects of ketamine mediate its antidepressant effects? J Affect Disord 2014;159:56–61Do the dissociative side effects of ketamine mediate its antidepressant effects.)

Certain themes have emerged with Ketamine. First are our findings of convergent brain regions implicated in MDD and how ketamine modulates those areas. Specifically, the subgenual ACC has been a region of interest in many previous studies. In relation to emotion and cognition, ketamine appears to reduce brain activation in regions associated with self-monitoring, to increase neural regions associated with emotional blunting, and to increase neural activity in reward processing.

Overall, ketamine’s effects were most notably found in the subgenual ACC, PCC, PFC, and hippocampus. Abnormalities in overlapping regions (specifically, the dorsal and subgenual ACC, amygdala, hippocampus, and ventral striatum) have been implicated, via a growing body of neuroimaging literature, in the pathophysiology of depression.  The subgenual ACC, in particular, has been a frequently studied area of interest concerning ketamine and MDD.

FMRI found significant reductions in subgenual ACC coupling with hippocampus, retrosplenial cortex, and thalamus. Immediate reductions in subgenual ACC blood flow and focal reductions in OFC blood flow strongly predicted dissociation.

NIMH studies using PET 120 minutes postinfusion found that increased metabolism in the subgenual ACC was positively correlated with improvements in depression scores post-ketamine. (Neural correlates of rapid antidepressant response to ketamine in bipolar disorder..)

Analysis of resting-state scans in healthy volunteers further suggests that dissociation may be responsible for ketamine’s antidepressant effects because it may disconnect the “excessive effects of an aversive visceromotor state on cognition and the self”—a hallmark of depression.40(p 163) Related, one study found that ketamine may dampen brain regions involved in rumination (the repetitive focusing of attention on negative feelings and thoughts in response to negative mood) by reducing the functional connectivity between the pregenual ACC and the dorsal PCC, and decreasing connectivity between the left and right executive-control networks.  (. Lehmann M, Seifritz E, Henning A, et al. Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. Soc Cogn Affect Neurosci 2016;11:1227–35 .Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network.)

Taken together, these studies suggest that ketamine may cause a “disconnect” in several circuits related to affective processing, perhaps by shifting focus of attention away from the internal states of anxiety, depression, and somatization, and more toward the perceptual changes (e.g., hallucinations, visual distortions, derealization) induced by ketamine. Similarly, during an emotion task, ketamine attenuated responses to negative pictures, suggesting that the processing of negative information is specifically altered in response to ketamine. (Scheidegger M, Henning A, Walter M, et al. Ketamine administration reduces amygdalo-hippocampal reactivity to emotional stimulation. Hum Brain Mapp 2016;37:1941–52.Ketamine administration reduces amygdalo‐hippocampal reactivity to emotional stimulation)

By taking the focus off “oneself” and placing it on other stimuli, it is possible that ketamine decreases awareness of negative experiences and consequently improves mood.

Perhaps most interesting are ketamine’s effects on brain connectivity as it relates to self-monitoring behaviors. Reduced connectivity between the pregenual ACC and dorsal PCC was associated with increased dissociation during infusion, and reduced activation in the left superior temporalcortex was associated with impaired self-monitoring56,65—which is disruptive to patients with psychotic illness—especially those with chronic symptoms of psychosis. By contrast, the transient dissociation experienced by depressed patients during a ketamine infusion may have the effect of dampening what the hyperactive self-monitoring associated with depressive illness (Lehmann M, Seifritz E, Henning A, et al. Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. Soc Cogn Affect Neurosci 2016;11:1227–35Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. b)

During ketamine administration, subjects experience emotional blunting, which may be associated with reduced limbic responses to emotional stimuli.54,55 It is possible that by decreasing the activity of deep limbic structures (thought to be involved in the pathophysiology of depression, such as the amygdala), ketamine acutely disables the emotional resources required to perpetuate the symptoms of depression. (Abel KM, Allin MP, Kucharska-Pietura K, et al. Ketamine and fMRI BOLD signal: distinguishing between effects mediated by change in blood flow versus change in cognitive state. Hum Brain Mapp 2003;18:135–45. Ketamine and fMRI BOLD signal Distinguishing between effects mediated by change in blood flow versus change in cognitive state|||| Abel KM, Allin MP, Kucharska-Pietura K, et al. Ketamine alters neural processing of facial emotion recognition in healthy men: an fMRI study. Neuroreport 2003;14:387–91 Ketamine alters neural processing of facial emotion recognition in healthy men an fMRI study.)

Ketamine may play a role in reactivating reward areas of the brain in patients with MDD. This reactivation may be especially important, as reward areas in MDD have been characterized by decreased subcortical and limbic activity and by an increased cortical response to reward paradigms. (Zhang WN, Chang SH, Guo LY, Zhang KL, Wang J. The neural correlates of reward-related processing in major depressive disorder: a meta-analysis of functional magnetic resonance imaging studies. J Affect Disord 2013;151:531–9.)

In resting-state scans, BOLD activation in the cingulate gyrus, hippocampus, insula, thalamus, and midbrain increased after ketamine.( Stone J, Kotoula V, Dietrich C, De Simoni S, Krystal JH, Mehta MA. Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe. J Psychopharmacol 2015;29:1025–8.Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe)

In addition, ketamine increases neural activation in the bilateral MCC, ACC, and insula, as well as the right thalamus.  Activation of these areas is consistent with activation of reward-processing areas, suggesting that ketamine may play a role in activating reward neurocircuitry. (Hoflich A, Hahn A, Kublbock M, et al. Ketamine-dependent neuronal activation in healthy volunteers. Brain Struct Funct 2017;222:1533–42.)

Though no single brain area has been singled out as the locus of depression, ketamine affects different areas of the brain in various ways, which may contribute to overall mood improvements. For example, at baseline, patients with MDD, compared to healthy volunteers, had reduced global connectivity in the PFC and increased connectivity in the posterior cingulate, precuneus, lingual gyrus, and cerebellum; postketamine, responders had increased connectivity in the lateral PFC, caudate, and insula. (Abdallah CG, Averill LA, Collins KA, et al. Ketamine treatment and global brain connectivity in major depression. Neuropsychopharmacology 2017;42:1210–9.Ketamine Treatment and Global Brain Connectivity in Major Depression.)

These findings may reflect ketamine’s ability to reclaim frontal control over deeper limbic structures, thus strengthening the cognitive control of emotions and decreasing depressive symptoms. Similarly, TRD patients, compared to healthy volunteers, had reduced insula and caudate responses to positive emotions at baseline, which normalized in the caudate post-ketamine. (Murrough JW, Collins KA, Fields J, et al. Regulation of neural responses to emotion perception by ketamine in individuals with treatment-resistant major depressive disorder. Transl Psychiatry 2015;5:e509 Regulation of neural responses to emotion perception by ketamine in individuals with treatment-resistant major depressive disorder.)

Improvements are correlated with increased metabolism in the hippocampus, dorsal ACC, and decreased metabolism in the OFC. (Lally N, Nugent AC, Luckenbaugh DA, Niciu MJ, Roiser JP, Zarate CA Jr. Neural correlates of change in major depressive disorder anhedonia following open-label ketamine. J Psychopharmacol 2015;29:596–607 Neural correlates of change in major depressive disorder anhedonia following open-label ketamine.)

Specifically, based on this review, future studies should likely focus on ketamine’s action in the subgenual ACC, PCC, PFC, and hippocampus. Another promising direction for research builds on the view that depression is the product of underactive prefrontal and limbic mood-regulation networks and overreactive subcortical limbic networks, which are involved in emotional and visceral responses. (Drevets WC, Price JL, Furey ML. Brain structural and functional abnormalities in mood disorders: implications for neurocircuitry models of depression. Brain Struct Funct 2008; 213:93–118 Brain structural and functional abnormalities in mood disorders.)

Ketamine’s potential use in both research and treatment is promising indeed.

 

Neural correlates of exercise training in individuals with schizophrenia and in healthy individuals A systematic review.

Mechanisms of Ketamine Action as an Antidepressant

Ketamine and Ketamine Metabolite Pharmacology Insights into Therapeutic Mechanisms.

Ketamine and other N-methyl-D-aspartate receptor antagonists in the treatment of depression a perspective review

THE NEUROBIOLOGY OF ketamine and addiction

Psychedelic-Assisted Psychotherapy – A Paradigm Shift in Psychiatric Research and Development

KETAMINE FOR TREATMENT-RESISTANT UNIPOLAR AND BIPOLAR MAJOR DEPRESSION – CRITICAL REVIEW AND IMPLICATIONS FOR CLINICAL PRACTICE.

Ketamine for the treatment of addiction Evidence and potential mechanisms  <<<<<<<<<<<<<<<<<<<<<<<<<<<

REVIEW OF KETAMINE ABUSE AND DIVERSION

Cognitive behavior therapy may sustain antidepressant effects of intravenous ketamine in treatment-resistant depression

The Effect of a Single Dose of Intravenous Ketamine on suicidal ideation – systemic review and meta-analysis

Rapid-Acting Antidepressants Mechanistic Insights and Future Directions.

Ketamine and rapid-acting antidepressants a new era in the battle against depression and suicide.

Molecular and Cellular Mechanisms of Rapid-Acting Antidepressants Ketamine and Scopolamine

A Circadian Genomic Signature Common to Ketamine and Sleep Deprivation in the Anterior Cingulate Cortex

New Targets for Rapid Antidepressant Action

Role of copper in depression. Relationship with ketamine treatment

Ketamine normalizes brain activity during emotionally valenced attentional processing in depression.

Glutamate and Gamma-Aminobutyric Acid Systems in the Pathophysiology of Major Depression and Antidepressant Response to Ketamine.

Recognizing Depression from the Microbiota⁻Gut⁻Brain Axis. b

Psychobiotics and the gut–brain axis in the pursuit of happines

Symptomatology and predictors of antidepressant efficacy in extended responders to a single ketamine infusion

Default Mode Connectivity in Major Depressive diosrder measured up to 10 days after Ketamine administration

S-Adenosyl Methionine and Transmethylation Pathways in Neuropsychiatric Diseases Throughout Life

S-Adenosyl Methionine in the Therapy of Depression and Other Psychiatric Disorders.

Ketamine for Depression, 2 Diagnostic and Contextual Indications.

Ketamine’s antidepressant efficacy is extended for at least four weeks in subjects with a family history of an alcohol use disorder

Predictors of Response to Ketamine in Treatment Resistant Major Depressive Disorder and Bipolar Disorder

The role of adipokines in the rapid antidepressant effects of ketamine.

response to ketamine and prediction of treatment outcome

What is the mechanism of Ketamine’s rapid‐onset antidepressant effect A concise overview of the surprisingly large number of possibilities

Medical comorbidity in bipolar disorder The link with metabolic-inflammatory systems.

Sterile Inflammation of Brain, due to Activation of Innate Immunity, as a Culprit in Psychiatric Disorders

Sterile Inflammation of Brain, due to Activation of Innate Immunity, as a Culprit in Psychiatric Disorders

Role of neuro-immunological factors in the pathophysiology of mood disorders.

Anti-inflammatory agents in the treatment of bipolar depression a systematic review and meta-analysis

The role of tryptophan metabolism and food craving in the relation between obesity and bipolar disorder

Immune-based strategies for mood disorders facts and challenges

Metabolic syndrome in psychiatric patients implications

Genetic Studies on the Tripartite Glutamate Synapse in the Pathophysiology and Therapeutics of Mood Disorders

The Impact of a Single Nucleotide Polymorphism in SIGMAR1 on Depressive Symptoms in Major Depressive Disorder and Bipolar Disorder.

Case–control association study of 14 variants of CREB1, CREBBP and CREM on MDD and bipolar

Metabolic syndrome in psychiatric patients overview, mechanisms, and implications.

Peripheral inflammation, Physical Activity and Cognition in Bipolar Disorder

The putative role of oxidative stress and inflammation in the pathophysiology of sleep dysfunction across neuropsychiatruc disorders – chronic fatigue bipolar MS

Bipolar Disorder and Inflammation.

Pharmacologic implications of inflammatory comorbidity in bipolar disorder.

Minding the brain- the role of pharmacotherapy in substance-use disorder treatment

Molecular and Cellular Effects of Traumatic Stress Implications for PTSD

Synaptic Loss and the Pathophysiology of PTSD Implications for Ketamine as a Prototype Novel Therapeutic

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Ketamine has much support in the use of hard-to-treat depression and suicidal behaviors. Below are studies and their links, including a meta-analysis, which demonstrate the effect of Ketamine. Also a recent trial by Carlos Zarate shows the heterogenous nature of response to Ketamine . It is difficult to say who is going to be lifted from their depression completely or partially respond, but in the study, Dr. Zarate showed that patients with a long history of suicidal thinking and self-harm will have less of a response in some cases.

NOVA Health Recovery | 703-844-0184 | Fairfax, Virginia 22304
NOVA Health Recovery | 703-844-0184 | Fairfax, Virginia 22304

Intravenous ketamine may rapidly reduce suicidal thinking in depressed patients << Article link 

Intravenous ketamine may rapidly reduce suicidal thinking in depressed patients

Repeat intravenous treatment with low doses of the anesthetic drug ketamine quickly reduced suicidal thoughts in a small group of patients with treatment-resistant depression. In their report receiving Online First publication in the Journal of Clinical Psychiatry, a team of Massachusetts General Hospital (MGH) investigators report the results of their study in depressed outpatients who had been experiencing suicidal thought for three months or longer.

“Our finding that low doses of ketamine, when added on to current antidepressant medications, quickly decreased suicidal thinking in depressed patients is critically important because we don’t have many safe, effective, and easily available treatments for these patients,” says Dawn Ionescu, MD, of the Depression Clinical and Research Program in the MGH Department of Psychiatry, lead and corresponding author of the paper. “While several previous studies have shown that ketamine quickly decreases symptoms of depression in patients with treatment-resistant depression, many of them excluded patients with current suicidal thinking.”

It is well known that having suicidal thoughts increases the risk that patients will attempt suicide, and the risk for suicide attempts is 20 times higher in patients with depression than the general population. The medications currently used to treat patients with suicidal thinking — including lithium and clozapine — can have serious side effects, requiring careful monitoring of blood levels; and while electroconvulsive therapy also can reduce suicidal thinking, its availability is limited and it can have significant side effects, including memory loss.

Primarily used as a general anesthetic, ketamine has been shown in several studies to provide rapid relief of symptoms of depression. In addition to excluding patients who reported current suicidal thinking, many of those studies involved only a single ketamine dose. The current study was designed not only to examine the antidepressant and antisuicidal effects of repeat, low-dose ketamine infusions in depressed outpatients with suicidal thinking that persisted in spite of antidepressant treatment, but also to examine the safety of increased ketamine dosage.

The study enrolled 14 patients with moderate to severe treatment-resistant depression who had suicidal thoughts for three months or longer. After meeting with the research team three times to insure that they met study criteria and were receiving stable antidepressant treatment, participants received two weekly ketamine infusions over a three-week period. The initial dosage administered was 0.5 mg/kg over a 45 minute period — about five times less than a typical anesthetic dose — and after the first three doses, it was increased to 0.75 mg/kg. During the three-month follow-up phase after the ketamine infusions, participants were assessed every other week.

The same assessment tools were used at each visit before, during and after the active treatment phase. At the treatment visits they were administered about 4 hours after the infusions were completed. The assessments included validated measures of suicidal thinking, in which patients were directly asked to rank whether they had specific suicide-related thoughts, their frequency and intensity.

While only 12 of the 14 enrolled participants completed all treatment visits — one dropped out because of ketamine side effects and one had a scheduling conflict — most of them experienced a decrease in suicidal thinking, and seven achieved complete remission of suicidal thoughts at the end of the treatment period. Of those seven participants, two maintained remission from both suicidal thinking and depression symptoms throughout the follow-up period. While there were no serious adverse events at either dose and no major differences in side effects between the two dosage levels, additional studies in larger groups of patients are required before any conclusions can be drawn.

“In order to qualify for this study, patients had to have suicidal thinking for at least three months, along with persistent depression, so the fact that they experienced any reduction in suicidal thinking, let alone remission, is very exciting,” says Ionescu, who is an instructor in Psychiatry at Harvard Medical School. “We only studied intravenous ketamine, but this result opens the possibility for studying oral and intranasal doses, which may ease administration for patients in suicidal crises.”

She adds, “One main limitation of our study was that all participants knew they were receiving ketamine. We are now finishing up a placebo-controlled study that we hope to have results for soon. Looking towards the future, studies that aim to understand the mechanism by which ketamine and its metabolites work for people with suicidal thinking and depression may help us discover areas of the brain to target with new, even better therapeutic drugs.”

 

Rapid and Sustained Reductions in Current Suicidal Ideation Following Repeated Doses of Intravenous Ketamine: Secondary Analysis of an Open-Label Study  << Article in Clinical Psychiatry

Ketamine for Rapid Reduction of Suicidal Thoughts in Major Depression: A Midazolam-Controlled Randomized Clinical Trial Article link for below:

Ketamine was significantly more effective than a commonly used sedative in reducing suicidal thoughts in depressed patients, according to researchers at Columbia University Medical Center (CUMC). They also found that ketamine’s anti-suicidal effects occurred within hours after its administration.

The findings were published online last week in the American Journal of Psychiatry.

According to the Centers for Disease Control and Prevention, suicide rates in the U.S. increased by 26.5 percent between 1999 and 2015.

“There is a critical window in which depressed patients who are suicidal need rapid relief to prevent self-harm,” said Michael Grunebaum, MD, a research psychiatrist at CUMC, who led the study. “Currently available antidepressants can be effective in reducing suicidal thoughts in patients with depression, but they can take weeks to have an effect. Suicidal, depressed patients need treatments that are rapidly effective in reducing suicidal thoughts when they are at highest risk. Currently, there is no such treatment for rapid relief of suicidal thoughts in depressed patients.”

Most antidepressant trials have excluded patients with suicidal thoughts and behavior, limiting data on the effectiveness of antidepressants in this population. However, previous studies have shown that low doses of ketamine, an anesthetic drug, causes a rapid reduction in depression symptoms and may be accompanied by a decrease in suicidal thoughts.

The 80 depressed adults with clinically significant suicidal thoughts who enrolled in this study were randomly assigned to receive an infusion of low-dose ketamine or midazolam, a sedative. Within 24 hours, the ketamine group had a clinically significant reduction in suicidal thoughts that was greater than with the midazolam group. The improvement in suicidal thoughts and depression in the ketamine group appeared to persist for up to six weeks.

Those in the ketamine group also had greater improvement in overall mood, depression, and fatigue compared with the midazolam group. Ketamine’s effect on depression accounted for approximately one-third of its effect on suicidal thoughts, suggesting the treatment has a specific anti-suicidal effect.

Side effects, mainly dissociation (feeling spacey) and an increase in blood pressure during the infusion, were mild to moderate and typically resolved within minutes to hours after receiving ketamine.

“This study shows that ketamine offers promise as a rapidly acting treatment for reducing suicidal thoughts in patients with depression,” said Dr. Grunebaum. “Additional research to evaluate ketamine’s antidepressant and anti-suicidal effects may pave the way for the development of new antidepressant medications that are faster acting and have the potential to help individuals who do not respond to currently available treatments.”

Ketamine for Rapid Reduction of Suicidal Thoughts in major depression – A midazolam controlled trial PDF article

Ketamine for depression | PTSD | 703-844-0184 | NOVA Health Recovery | Fairfax, Virginia 22304
Ketamine for depression | PTSD | 703-844-0184 | NOVA Health Recovery | Fairfax, Virginia 22304

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Ketamine as a Potential Treatment for Suicidal Ideation A Systematic Review of the Literature 2015

Abstract
Objective To review the published literature on the efficacy
of ketamine for the treatment of suicidal ideation (SI).
Methods The PubMed and Cochrane databases were
searched up to January 2015 for clinical trials and case
reports describing therapeutic ketamine administration to
patients presenting with SI/suicidality. Searches were also
conducted for relevant background material regarding the
pharmacological function of ketamine.
Results Nine publications (six studies and three case
reports) met the search criteria for assessing SI after
administration of subanesthetic ketamine. There were no
studies examining the effect on suicide attempts or death
by suicide. Each study demonstrated a rapid and clinically
significant reduction in SI, with results similar to previously
described data on ketamine and treatment-resistant
depression. A total of 137 patients with SI have been
reported in the literature as receiving therapeutic ketamine.
Seven studies delivered a dose of 0.5 mg/kg intravenously
over 40 min, while one study administered a 0.2 mg/kg
intravenous bolus and another study administered a liquid
suspension. The earliest significant results were seen after
40 min, and the longest results were observed up to
10 days postinfusion.
Conclusion Consistent with clinical research on ketamine
as a rapid and effective treatment for depression, ketamine
has shown early preliminary evidence of a reduction in
depressive symptoms, as well as reducing SI, with minimal
short-term side effects. Additional studies are needed to
further investigate its mechanism of action, long-term
outcomes, and long-term adverse effects (including abuse)
and benefits. In addition, ketamine could potentially be
used as a prototype for further development of rapid-acting
antisuicidal medication with a practical route of administration
and the most favorable risk/benefit ratio.
Key Points
Preliminary data from randomized controlled trials
have demonstrated that ketamine may rapidly and
effectively control treatment-resistant depression,
though the effects are transient.
A small subset of studies has demonstrated similar
results in the effects of ketamine on suicidal ideation.
Ketamine has potential as a rapid treatment for
suicidal ideation and/or a possible model compound
for future drug development.

4 Discussion
With an estimated prevalence of mood disorders ranging
from 3.3 to 21.4 % and the substantially increased risk of
suicide among patients with mood disorders, treatment is
certainly warranted [19]. Current treatment options for
suicidality are limited. They include brain stimulation
therapeutics, such as ECT, and pharmacological intervention
(lithium, clozapine). The efficacy of lithium in treating
suicidality has been documented [20, 21] and has recently been reviewed and pooled in a recent meta-analysis of 48
studies [22]. Clozapine has also been shown to reduce
suicide risk in patients with schizophrenia [23, 24]. The
limitations of both lithium and clozapine include a longer
time to efficacy in this psychiatric emergency/urgency,
compared with the early response to ketamine [25]. Ketamine
seems to be gaining substantial evidence as a pharmacological
option for depression with a fast onset of
action, but its long-term effects need further investigation.
In addition, ketamine probably offers a faster onset of
action in terms of SI, but further work is certainly needed
in this area. Given the risk of suicide and even the
increasing rates of suicide in certain subgroups, such as
soldiers and veterans [26, 27], there is an urgent need for
faster therapeutics for SI and TRD. Importantly, suicidality
and suicide pose a high global burden of patient suffering
to families and society. Although several small-to-moderate
sized studies, in addition to several reviews, have been
published that have examined the efficacy of ketamine in
TRD, there are considerably fewer published data
specifically examining ketamine in patients presenting with
SI. Notably, only three studies have directly examined SI
as the primary outcome [11, 16, 17], while the rest
examined SI as the secondary outcome [4, 15, 18], not
including case reports. This review summarizes the current
published literature regarding ketamine as a treatment for
SI. The data so far show promising trends of ketamine
being an effective and rapid treatment with minimal side
effects.
Pharmacologically, ketamine is an N-methyl-D-aspartate
(NMDA) receptor antagonist. It has been used for anesthesia
in the USA since the 1970s. At subanesthetic doses,
ketamine has been shown to increase glutamate levels [3].
This mechanism is relevant, as glutamate regulation and
expression are altered in patients with major depressive
disorder (MDD). Studies have also demonstrated an
abnormal glutamate–glutamine–gamma-aminobutyric acid
cycle in patients with suicidality [28]. Furthermore, ketamine
has also been shown to work on nicotinic and opioid
receptors [29]. No other class of antidepressant medication
works to modulate the glutamatergic system, and research
continues into this, with the goal of characterizing the full
mechanism of action of ketamine and perhaps developing
other compounds that would have similar effects. Thus,
even if the approval and marketing of ketamine as a rapidacting
antisuicidal and antidepressant medication is not
realized, it could well be a prototype for development of
other medication(s) that retain the mechanism of action
with more favorable qualities and a lesser adverse effect
profile (such as a longer duration of action or less or no
addictive potential). Although the mechanisms explaining
the antisuicidal effect and the NMDA receptor antagonism
of ketamine are still unclear, some of the initial evidence
points to an anti-inflammatory action via the kynurenic
acid pathway. Strong suggestions as to the causal relationship
between inflammation and depression/suicidality
has come from studies demonstrating that cytokines [30,
31] and interferon-b [32] induce depression and suicidality.
Other recent studies have added to the notion of implicating
brain immune activation in the pathogenesis of suicidality.
For instance, one study showed microglial
activation of postmortem brain tissue in suicide victims
[33]. Another study found increased levels of the cytokine
interleukin-6 in cerebrospinal fluid from patients who had
attempted suicide [34]. Higher levels of inflammatory
markers have been shown in suicidal patients than in nonsuicidal
depressed patients [33, 35]. Inflammation leads to
production of both quinolinic acid (an NMDA agonist) and
kynurenic acid (a NMDA antagonist). An increased
quinolinic acid to kynurenic acid ratio leads to NMDA
receptor stimulation. The correlation between quinolinic
acid and Suicide Intent Scale scores indicates that changes
in glutamatergic neurotransmission could be specifically
linked to suicidality [36].
Small randomized controlled trials have demonstrated
the efficacy of ketamine in rapidly treating patients with
both TRD and/or bipolar depression [4, 8, 9, 11, 16–18].
Some studies have also examined suicide items as a secondary
measure in their depression rating scales [4, 7]. In
total, the studies examining ketamine and TRD have nearly
consistently demonstrated that ketamine provides relief
from depressive and suicidal symptoms, starting at 40 min
and lasting for as long as 5 days. Questions still remain as
to the long-term effects of this treatment, how much should
be administered and how often, any serious adverse effects,
and the mechanism of action.
Pharmacologically, ketamine has poor bioavailability
and is best administered via injection [37]. In their landmark
study, Berman et al. [4] found that a subanesthetic
dose (0.5 mg/kg) rapidly improved depressive symptoms.
Most of the subsequent studies have delivered ketamine as
a constant infusion for 40 min at a rate of 0.5 mg/kg.
Others have examined its efficacy after multiple infusions
and observed similar results [8, 13, 16, 38]. Currently, it is
recommended that ketamine be administered in a hospital
setting [39].

______________________________________

Characterizing the course of suicidal ideation response to ketamine

Characterizing the course of suicidal ideation response to ketamine PDF

2018 article from Carlos Zarate discussing the variable course outcomes with Ketamine for suicidality and correlations to serum markers and behavior and longevity of self-harm prior to treatment:

 

Background: : No pharmacological treatments exist for active suicidal ideation (SI), but the glutamatergic
modulator ketamine elicits rapid changes in SI. We developed data-driven subgroups of SI trajectories after
ketamine administration, then evaluated clinical, demographic, and neurobiological factors that might predict SI
response to ketamine.
Methods: : Data were pooled from five clinical ketamine trials. Treatment-resistant inpatients (n = 128) with
DSM-IV-TR-diagnosed major depressive disorder (MDD) or bipolar depression received one subanesthetic
(0.5 mg/kg) ketamine infusion over 40 min. Composite SI variable scores were analyzed using growth mixture
modeling to generate SI response classes, and class membership predictors were evaluated using multinomial
logistic regressions. Putative predictors included demographic variables and various peripheral plasma markers.
Results: : The best-fitting growth mixture model comprised three classes: Non-Responders (29%), Responders
(44%), and Remitters (27%). For Responders and Remitters, maximal improvements were achieved by Day 1.
Improvements in SI occurred independently of improvements in a composite Depressed Mood variable for
Responders, and partially independently for Remitters. Indicators of chronic SI and self-injury were associated
with belonging to the Non-Responder group. Higher levels of baseline plasma interleukin-5 (IL-5) were linked to
Remitters rather than Responders.
Limitations: : Subjects were not selected for active suicidal thoughts; findings only extend to Day 3; and plasma,
rather than CSF, markers were used.
Conclusion: : The results underscore the heterogeneity of SI response to ketamine and its potential independence
from changes in Depressed Mood. Individuals reporting symptoms suggesting a longstanding history of chronic
SI were less likely to respond or remit post-ketamine.

1. Introduction
Suicide poses a serious threat to public health. Worldwide, suicide
accounts for approximately 1 million deaths, and 10 million suicide
attempts are reported annually (World Health Organization, 2014). In
the United States, the national suicide rate has increased by approximately
28% over the last 15 years (Curtin et al., 2016). At the same
time, relatively few interventions for suicide risk exist. While treatments
such as clozapine and lithium have demonstrated effects on
suicidal behavior over weeks to months, these effects may be limited to
specific diagnoses (Cipriani et al., 2005; Griffiths et al., 2014). Currently,
no FDA-approved medications exist to treat suicidal ideation
(SI), leaving those who experience a suicidal crisis with limited options
for a reprieve of symptoms. Consequently, a critical need exists for
rapid-acting treatments that can be used in emergency settings.
A promising off-label agent for this purpose is the rapid-acting antidepressant
ketamine, which past studies have suggested reduces suicidal
thoughts (Diazgranados et al., 2010a; Murrough et al., 2015; Price
et al., 2009). A recent meta-analysis of 167 patients with a range of
mood disorder diagnoses found that ketamine reduced suicidal
thoughts compared to placebo as rapidly as within a few hours, with
effects lasting as long as seven days (Wilkinson et al., 2017). These
results are reinforced by newer findings of reduced active suicidal
ideation post-ketamine compared to a midazolam control(Grunebaum et al., 2018). As the efficacy literature develops in the era
of personalized medicine, two important issues must be addressed.
First, little is known about the acute course of SI following ketamine.
The speed with which antidepressant response occurs, and how much
improvement can be expected on average, has been documented for
single administrations of ketamine (Mathew et al., 2012; Sanacora
et al., 2017); in the limited available literature, researchers have
emulated previous studies examining antidepressant effect, where a
cutoff of 50% improvement demarcated response (Nierenberg and
DeCecco, 2001). Nevertheless, it remains unknown whether this categorization
accurately reflects the phenomenon of suicidal thoughts.
Empirically-derived approaches to the description of SI trajectory after
ketamine may be useful in operationalizing “response” in future clinical
trials.
Second, identifying demographic, clinical, or biological predictors
of SI response to ketamine would allow researchers and clinicians to
determine who is most likely to exhibit an SI response to ketamine. A
broad literature describes clinical and demographic predictors for suicide
risk (Franklin et al., 2017), and a smaller literature connects suicidal
thoughts and behaviors to plasma markers such as brain-derived
neurotrophic factor (BDNF) and cytokines (Bay-Richter et al., 2015;
Falcone et al., 2010; Isung et al., 2012; Serafini et al., 2017; Serafini
et al., 2013). However, no biomarkers have been shown to predict SI/
behavior response to intervention, a finding reinforced by the National
Action Alliance for Suicide Prevention’s Research Prioritization Task
Force’s Portfolio Analysis (National Action Alliance for Suicide
Prevention: Research Prioritization Task Force, 2015). Notably, predictor
analyses have the potential to reveal insights into personalized
treatments for suicidal individuals, as well as the neurobiology of SI
response. With respect to antidepressant response, for example, this
approach yielded the observation that individuals with a family history
of alcohol dependence may be more likely to exhibit an antidepressant
response to ketamine (Krystal et al., 2003; Niciu et al., 2014; PermodaOsip
et al., 2014).
The goals of this study were to elucidate trajectories of SI response
and identify predictors of that response, with the ultimate goal of
adding to the growing literature surrounding ketamine’s specific effects
on SI. In particular, we sought to determine whether the heterogeneous
patterns of change in SI after ketamine administration were better explained
by a model with two or more latent groups of trajectories rather
than a single average trajectory, using secondary analyses from previously
published clinical trials. These classes were then used to evaluate
potential clinical, demographic, and plasma biomarker predictors
of SI response to ketamine in order to generate hypotheses.. Discussion
This analysis used a data-driven approach to characterize SI response
to ketamine. The data were best explained by three trajectory
classes: one with severe average baseline SI and little to no response to
ketamine (Non-Responders), one with moderate average baseline levels
of SI and significant response to ketamine (Responders), and a third
with moderate average baseline levels of SI and complete remission of
SI by two days post-ketamine (Remitters). These findings suggest a
diversity of post-ketamine changes in SI that may not be captured under
traditional methods of categorizing response to treatment.
Furthermore, we found evidence that SI response and antidepressant
response could be distinguished from each other; one subset of participants
experienced improvement in SI that was partially explained by
improvements in Depressed Mood, while the other group’s improvements
in SI occurred independently of antidepressant response. With
regard to predictors of SI response trajectory, preliminary results suggest
the individuals least likely to experience improvement in SI postketamine
were those with the most severe SI and a history of self-injury.
Few plasma markers emerged as predictors of SI response in this study,
highlighting the limitations of connecting SI ratings of response with
biological markers.
The growth mixture modeling approach used here underscored the
heterogeneity of SI response to ketamine, which would not have been
captured by simply calculating the average trajectory. The class assignment
from this approach also differed from the definition of response
(50% reduction in symptoms) traditionally used in the antidepressant
literature, which often focuses on a specific timepoint rather
than the entire symptom trajectory. In comparing classification using a
50% response at Day 1 and Day 3 with the latent trajectory classes, we
found representation of almost every SI class across each responder
group, highlighting the potential limitations of the 50% response approach.
Further study is needed to determine which of these approaches
will prove more fruitful. Complete remission of SI has previously been
used as an outcome measure in clinical trials and in a meta-analysis of
ketamine’s efficacy (Grunebaum et al., 2017; Grunebaum et al., 2018;
Wilkinson et al., 2017), as well as in a study examining the relationship
between SI response to ketamine and changes in nocturnal wakefulness
(Vande Voort et al., 2017). One strength of the present study is that this
data-driven approach provides classifications that directly reflect the
phenomena under study as they are, as opposed to what they should be.
Especially when used in larger samples than the current study, this
approach is particularly promising in its ability to provide a more
nuanced understanding of the nature of SI response to ketamine.
Our results also support the idea that SI response in particular can target. First, it should be noted here that SI classes were not distinguishable
by baseline Depressed Mood scores; patients with the most
severe SI did not differ meaningfully in Depressed Mood scores from
those with the mildest SI. Second, while previous analyses of these data
documented that BMI and family history of alcohol dependence predicted
antidepressant response (Niciu et al., 2014), SI response was not
associated with these variables in the current analysis. Third, the antidepressant
response profiles of the SI classes suggest that SI response
and antidepressant response are not wholly redundant. This aligns with
previous clinical trials and meta-analytic reviews of the literature suggesting
that SI response to ketamine occurs partially independently of
antidepressant response (Grunebaum et al., 2018; Wilkinson et al.,
2017). Nevertheless, this independence did not hold true across both SI
response groups. Specifically, antidepressant and SI response were
clearly linked in Remitters, with depression accounting for half of the
changes in SI; however, in Responders, improvements in SI occurred
independently from improvements in Depressed Mood. These discrepancies
could be related to ketamine’s complex neurobiological
mechanisms or to the potentially low levels of clinical severity observed
in the Remitters.
Interestingly, the current analyses found no baseline demographic
variables that reliably distinguished Responders from Remitters. Some
phenotypic characteristics were uniquely associated with belonging to
the Non-Responder group, suggesting that a long-standing history of
self-injury or SI may indicate resistance to rapid changes in SI.
Relatedly, a recent, randomized clinical trial of repeat-dose ketamine
compared to placebo found that ketamine had no effect on SI in a
sample of patients selected for their longstanding, chronic history of SI
(Ionescu, 2017). These results highlight the importance of patient selection,
particularly for suicide risk. It should be stressed, however, that
SI does not necessarily translate to suicidal attempts or deaths; to our
knowledge, no study has yet linked ketamine with reduced risk of
suicidal behavior. Indeed, in the present study the SI Non-Responders
experienced limited antidepressant effects in response to ketamine, but
may nevertheless have improved on other, unmeasured symptoms that
could provide important benefit and relief. As the ketamine literature
develops, it will be important to identify which clinical symptom profiles
are most likely to have a robust anti-SI and anti-suicidal behavior
response to ketamine and which ones may benefit from other interventions.
While we evaluated a range of potential plasma markers previously
linked to suicidal ideation and behavior, in the present analysis only IL5
was associated with the SI Responder subgroup. Ketamine is known to
have anti-inflammatory effects (Zunszain et al., 2013), but the relationship
between antidepressant response and change in cytokine
levels remains unclear (Park et al., 2017). Cytokines have been linked
to suicidal behavior in the past; a recent meta-analysis found that lower
levels of IL-2 and IL-4, and higher levels of TGFbeta, were associated
with suicidal thoughts and behaviors (Serafini et al., 2013); however, toour knowledge IL-5 has not previously been linked to SI. Given the large
number of comparisons and lack of precedent in the literature, this
result may have been spurious and should be interpreted with caution.
A number of other results may reflect meaningful relationships, but the
high degree of variability—and the associated wide confidence intervals—suggests
that larger sample sizes are needed to better elucidate
the nature of any such relationships (e.g. baseline VEGF: χ2 = 6.13,
p = .05, but OR (95% CI) 13.33 (0.93–200.00)). Somewhat surprisingly,
plasma BDNF levels were not associated with responder class.
Previous studies of bipolar, but not MDD, samples found that plasma
BDNF levels were associated with SI response after ketamine
(Grunebaum, 2017; Grunebaum et al., 2017), suggesting that the mixed
diagnostic composition of this study may explain differences from
previous work. Studies exploring the relationship between BDNF and
antidepressant response to ketamine have also yielded mixed findings
(Haile et al., 2014; Machado-Vieira et al., 2009). Other data-driven
approaches have considered both biological and behavioral variables in
characterizing depression (Drysdale et al., 2017); a similar approach
might prove useful for predicting SI response.
The present study is associated with several strengths as well as
limitations. Strengths include the relatively large sample size of participants
who received ketamine, the use of composite SI scores from
previous exploratory factor analyses as opposed to individual items,
and the combination of clinical and biological markers as potential
predictors of class membership. Limitations include patient selection
methods, as these patients were part of an antidepressant trial and were
not selected for active suicidal thoughts, as well as the exploratory
nature of the analysis. As stated above, suicidal thoughts do not necessarily
equate to suicidal behavior, and class membership would thus
not necessarily correspond with an overall reduction in suicide risk.
Another limitation is that results were collapsed across several clinical
trials with slight variations in study design, and findings were thus only
extended to Day 3 rather than a week after ketamine administration. As
a result, only a subset of the sample could be used for predictive analyses.
In addition, plasma—rather than CSF—markers were used, and
the latter might better indicate underlying biology due to proximity to
the brain, though certain markers such as plasma BDNF may be related
to platelet storage, rather than the brain (Chacón-Fernández et al.,
2016). Comparison of results to trajectories of suicide-specific measures,
such as the Scale for Suicide Ideation (Beck et al., 1979), may also
give further insight into specific SI content. Finally, many clinical
predictors were collected upon hospital admission; future analyses
could use formal assessments, such as the Childhood Traumatic Questionnaire
(Bernstein et al., 1994), assessment of personality disorders,
or diagnoses such as post-traumatic stress disorder (PTSD) as potential
indicators of response.
Despite these limitations, the study demonstrates the utility of a
data-driven approach for characterizing the heterogeneity of SI response
to a rapid-acting intervention. This allows for a more finegrained
analysis of symptoms than would be permitted by traditionalapproaches, such as overall average response or dichotomization at
50% reduction in symptoms. This study identified several findings of
note. These included distinguishing at least three patterns of SI response
to ketamine and finding that subjects who exhibited more severe SI at
baseline were not likely to experience an SI response to ketamine.

 

____________________________________

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Researchers at Yale published a new study titled “Acute and Longer-Term Outcomes Using Ketamine as a Clinical Treatment at the Yale Psychiatric Hospital” in Clinical Psychiatry.  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.  The authors observed 54 patients that received IV ketamine infusion for the treatment of severe and treatment-resistant mood disorders such as depression.

“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.

The Yale researchers studied the acute and longer-term outcomes in this patient population. Importantly, a subset of patients (n=14) received ketamine on a long-term basis, ranging from 12 to 45 total treatments, over a course of 14 to 126 weeks.  The researchers found no evidence of cognitive decline, increased proclivity to delusions, or emergence of symptoms consistent with cystitis in this subset of long-term ketamine patients.  They also reported that the infusions were generally well-tolerated.

Although this study population was relatively small, limiting the conclusions that can be drawn, this is still an important first step in establishing the long-term safety of ketamine for the treatment of a myriad of diseases that it’s being used to treat.

Acute and Longer-Term Outcomes Using Ketamine as a Clinical Treatment at the Yale Psychiatric Hospital

Samuel T. Wilkinson, MD; Rachel B. Katz, MD; Mesut Toprak, MD; Ryan Webler, BA; Robert B. Ostroff, MD; and Gerard Sanacora, MD, PhD

J Clin Psychiatry 2018;79(4):17m11731
10.4088/JCP.17m11731

Objective: Ketamine has emerged as a rapid-acting antidepressant, though controversy remains whether sufficient data exist to justify its use outside of research protocols. In October 2014, the authors’ institution began providing ketamine as an off-label therapy on a case-by-case basis for patients unable to participate in research protocols. Here, the participant experience during 29 months of providing ketamine as a clinical treatment for severe and treatment-resistant mood disorders through February 2017 is described.

Methods: Patients were initially treated with a single- or double-infusion protocol (0.5 mg/kg for 40 minutes intravenously) and were later transitioned to a 4-infusion protocol over 2 weeks.

Results: Fifty-four patients received ketamine, with 518 total infusions performed. A subset of 44 patients with mood disorders initiated the 4-infusion protocol, of whom 45.5% responded and 27.3% remitted by the fourth infusion. A subsample (n = 14) received ketamine on a long-term basis, ranging from 12 to 45 total treatments, over a course of 14 to 126 weeks. No evidence was found of cognitive decline, increased proclivity to delusions, or emergence of symptoms consistent with cystitis in this subsample.

Conclusions: In general, ketamine infusions were tolerated well. The response and remission rates in this clinical sample were lower than those observed in some research protocols. The small number of patients who were treated on a maintenance schedule limits the conclusions that can be drawn regarding the long-term safety of ketamine; however, no long-term adverse effects were observed in this sample.

If you are interested in Ketamine therapies for depression, PTSD, pain, anxiety, fibromyalgia…….call 703-844-0184.

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Bethesda 20814 – Bethesda 20816 – Bethesda 20817 – Chevy Chase 20815 – Colesville 20904 – Cabin John 20815 – Glen Echo 20812 – Gaithersburg 20855 – Gaithersburg 20877- Gaithersburg 20878 – Gaithersburg 20879 – Garrett Park 20896 – Kensington 20895 – Montgomery Village 20886 – Olney 20830 – Olney 20832 – Potomac 20854 – Potomac 20859 – Rockville 20850 – Rockville 20852 – Rockville 20853 – Silver Spring 20903 – Silver Spring 20905 – Silver Spring 20906 – Silver Spring 20910 – Takoma Park 20912 – Wheaton 20902
Washington DC:
Crestwood 20011- North Capitol Hill 20002 – Cathedral Heights 20016 – American University Park 20016 – Columbia Heights 20010 – Mount Pleasant 20010 – Downtown 20036 – Dupont Circle 20009 – Logan Circle 20005- Adams Morgan 20009 – Chevy Chase 20015 – Georgetown 20007 – Cleveland Park 20008 – Foggy Bottom 20037 – Rock Creek Park – Woodley Park 20008 – Tenleytown 20016
Northern Virginia:
McLean 22101- McLean 22102 – McLean 22106 – Great Falls 22066 – Arlington 22201 – Arlington 22202 – Arlington 22203 – Arlington 22205 – Falls Church 22041 – Vienna 22181 – Alexandria 22314 – 22308 -22306 -22305 -22304 Fairfax – 20191 – Reston – 22009 – Springfield – 22152 22015 Lorton 22199
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Ketamine for Depression: A Q&A with Psychiatrist Alexander Papp, MD  << Article link

 

Ketamine for Depression: A Q&A with Psychiatrist Alexander Papp, MD

By Gabrielle Johnston, MPH   |   December 21, 2017

Every year, 15 to 20 million persons are diagnosed and treated for depression, making it the most common type of mental illness in the United States, according to the Centers for Disease Control. For roughly 30 percent of these patients, however, standard treatment options, such as antidepressants and talk therapy, are not effective. But for some, there may be a new option: ketamine, a medication originally developed as an anesthetic drug, but now being used to address treatment-resistant depression. Alexander Papp, MD, psychiatrist at UC San Diego Health, discusses the potential of ketamine as a remedy for depression when other treatments fail.

Alexander Papp

Question: How does ketamine work to reduce depression?

Answer: Ketamine works by quickly increasing the activity of the neurotransmitter glutamate in the frontal cortex of the brain, while also allowing new synapses to form in the same area. The speediness of ketamine in producing an antidepressant effect occurs because this drug bypasses the traditional serotonin route and goes directly to activating glutamate. This is very different from traditional antidepressants, which first increase the activity of serotonin in multiple different areas of the brain, and then ultimately affect glutamate. This process usually takes two to four weeks to take effect, while ketamine yields an almost immediate effect.

Q: What is treatment-resistant depression?

A: Treatment-refractory depression, better known as treatment-resistant depression, is a term used to describe cases of major depressive disorder that do not adequately respond to appropriate courses of at least two antidepressants. In this situation, “responding” to an antidepressant means not only improvement in mood, but experiencing a full disappearance of the majority of the depressive symptoms and a return to normal functioning.

Q: What is ketamine and how is it traditionally used in medicine?

A: Ketamine was originally developed as an anesthetic and an analgesic or pain reliever. Currently, ketamine is approved and labeled by the U.S. Food & Drug Administration (FDA) for both of these uses in the United States.

Q: Are there any adverse effects of ketamine as a treatment? Is this why some consider it to be an “experiential” treatment for depression?

A: As a treatment for depression, ketamine has a few mild adverse effects. These can include a dream-like feeling, blurred or double vision, dizziness, nausea or vomiting and short anxiety reactions after receiving a dose. This treatment is not experimental because this is an FDA-approved drug that is being used for “off-label” or a less common use.  An “off-label” use means that it is administered as a treatment that the FDA did not originally approve. The FDA approves medications only for a certain number of uses, but most medications eventually develop off-label uses due to the clinical experience that develops over time. As an example, the drug Prazosin was approved for the treatment of high blood pressure in 1976 but it is now mostly used for the treatment of nightmares in patients with post-traumatic stress disorder, a use that was not originally approved.

Q: When should a patient ask their doctor about trying ketamine as a treatment for depression?

depression

A: You should speak to your doctor when you have tried several antidepressant medications or combinations of medications, taken at the highest dose levels for at least two months, without a return to normal functioning. In these cases, it is also important to have other medical reasons for depression, such as a hormonal imbalance, ruled out as well.

Q: Apart from ketamine, are there any other treatments for this treatment-resistant depression on the horizon?

A: New studies have been published about administering Botox injections into the frown muscles on the forehead to treat depression. Botox is an FDA-approved drug to treat a variety of conditions, ranging from excessive sweating to muscle spasms to cosmetic uses, but its use to treat depression is another example of off-label use.

There are also a variety of other treatments available for this type of depression. Two of the more common options are repetitive transcranial magnetic stimulation and deep brain stimulation. Both of these are FDA-approved and are covered by some insurance plans.

___________________________________

If you are interested in Ketamine therapies for depression, PTSD, pain, anxiety, fibromyalgia…….call 703-844-0184.

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Bethesda 20814 – Bethesda 20816 – Bethesda 20817 – Chevy Chase 20815 – Colesville 20904 – Cabin John 20815 – Glen Echo 20812 – Gaithersburg 20855 – Gaithersburg 20877- Gaithersburg 20878 – Gaithersburg 20879 – Garrett Park 20896 – Kensington 20895 – Montgomery Village 20886 – Olney 20830 – Olney 20832 – Potomac 20854 – Potomac 20859 – Rockville 20850 – Rockville 20852 – Rockville 20853 – Silver Spring 20903 – Silver Spring 20905 – Silver Spring 20906 – Silver Spring 20910 – Takoma Park 20912 – Wheaton 20902

Washington DC:
Crestwood 20011- North Capitol Hill 20002 – Cathedral Heights 20016 – American University Park 20016 – Columbia Heights 20010 – Mount Pleasant 20010 – Downtown 20036 – Dupont Circle 20009 – Logan Circle 20005- Adams Morgan 20009 – Chevy Chase 20015 – Georgetown 20007 – Cleveland Park 20008 – Foggy Bottom 20037 – Rock Creek Park – Woodley Park 20008 – Tenleytown 20016

Northern Virginia:
McLean 22101- McLean 22102 – McLean 22106 – Great Falls 22066 – Arlington 22201 – Arlington 22202 – Arlington 22203 – Arlington 22205 – Falls Church 22041 – Vienna 22181 – Alexandria 22314 – 22308 -22306 -22305 -22304 Fairfax – 20191 – Reston – 22009 – Springfield – 22152 22015 Lorton 22199
Fairfax, Va
2303 – 22307 – 22306 – 22309 – 22308 22311 – 22310 – 22312
22315 -22003 – 20120 – 22015 – 22027 20121 – 22031 – 20124
22030 – 22033 – 22032 – 22035 – 22039 22041 – 22043
22042 – 22046 – 22044 – 22060 – 22066 20151 – 22079 – 20153 – 22101
22102 – 20171 – 20170 – 22124 – 22151 22150 – 22153
22152 – 20191 – 20190 – 22181- 20192 22180 – 20194 – 22182
Woodbridge – 22191 – 22192 -22193 -22194 – 22195
Springfield – 22150 – 22151 -22152-22153-22154-22155 -22156 – 22157 -22158 -22159 -22160 – 22161
Front Royal 22630