Frontier mental health research: psychedelics & drug studies

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24 papers

Psilocybin for Anxiety

Based on 24 papers

Researchers are cautiously optimistic about using psilocybin (the active part of 'magic' mushrooms) to reduce anxiety in some situations. Small clinical trials, especially in people facing life‑threatening illness, often showed falls in anxiety after carefully guided psilocybin sessions paired with therapy. However, most studies are small or early stage, so scientists say bigger and more rigorous trials are needed before psilocybin can be called a proven treatment. Scientists have ideas about how psilocybin might help. Lab and brain‑imaging studies suggest it acts on serotonin receptors, can make brain circuits more flexible (called neuroplasticity), and can change activity in brain networks linked to self‑focused worry. But biological markers are not consistent yet, and many questions remain about who it helps, how long benefits last, and any longer‑term risks.

Key findings

  • Controlled clinical trials using psilocybin together with therapy reduced anxiety and depression in patients facing life‑threatening illness (for example, people with cancer). 15063 15055 15132
  • Reviews say psilocybin looks promising for some mental health problems, but current studies are small and not strong enough to make it a standard treatment yet. 15056 15085
  • A review of trials for anxiety disorders found that psychedelic‑assisted treatments (including one psilocybin trial) reported reductions in anxiety symptoms for several kinds of anxiety. 15068
  • Lab and clinical research suggests psilocybin’s active chemical (psilocin) acts on the brain’s serotonin system, can reduce brain inflammation in some studies, and can boost neuroplasticity — the brain’s ability to form new connections. 15132 15050 15091
  • Psilocybin can change activity in the brain’s default mode network (a set of areas linked to self‑focused thinking and worry), which researchers think might help people get unstuck from negative thought patterns. 15135 15132
  • Most clinical studies report that psilocybin given in supervised, therapy‑based settings had an acceptable safety profile, with side effects usually being short‑lived and manageable. 15135 15055 15063 15085
  • How the drug is given matters a lot. Preparing people, creating a safe setting, and doing follow‑up therapy (called 'set and setting' and integration) are widely described as important for safety and for good outcomes. 15065 15063 15056
  • There are important limits to the evidence: many trials are small, some lack strong controls or long follow‑up, and people of color are underrepresented, so we do not yet know how general the results are. 15056 15078 15095
  • Biological measures are inconsistent. For example, a meta‑analysis found no clear change in blood BDNF (a protein linked to brain growth) after psychedelics, suggesting that measurable biomarkers are still uncertain. 15129
  • In a national survey, many people reported using psychedelic mushrooms for mental health, but users had higher anxiety and depression scores; this is a link in a survey and does not prove the mushrooms caused the problems. 15054

Management of Treatment-Resistant Depression: Challenges and Strategies

Daphne Voineskos, Zafiris J. Daskalakis, Daniel M. Blumberger

This paper is a careful review of research about treatment-resistant depression. The authors looked through medical studies to see how doctors define this kind of depression, what makes it hard to assess, and which treatments have been tried. They describe drug strategies like adding lithium or thyroid hormone, switching antidepressant…

Electroconvulsive Therapy Studies Treatment of Major Depression Tryptophan and brain disorders Ketamine Psilocybin

Inclusion of people of color in psychedelic-assisted psychotherapy: a review of the literature

Timothy I. Michaels, Jennifer Purdon, Alexis Collins, Monnica T. Williams
BMC Psychiatry Summary & key facts 2018 247 citations

The authors reviewed psychedelic-assisted psychotherapy studies published from 1993 to 2017 to see how many people of color took part. They found 18 studies with about 280 people. About 82% of participants were non-Hispanic White, while only small percentages were African American, Latino, Asian, indigenous, or mixed race. Because so…

Natural Compound Pharmacology Studies Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Ayahuasca LSD

Psychedelics in Psychiatry: Neuroplastic, Immunomodulatory, and Neurotransmitter Mechanisms

Antonio Inserra, Danilo De Gregorio, Gabriella Gobbi
Pharmacological Reviews Summary & key facts 2020 215 citations

This review looked at many studies about classic psychedelics (like psilocybin and LSD), MDMA, ketamine, and plant medicines (like ayahuasca). The authors explain how these drugs can change the brain’s wiring, calm inflammatory processes, and shift key brain chemicals. Those actions may help explain why small clinical trials and animal…

Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Tryptophan and brain disorders Ayahuasca Ketamine

Psychedelic Treatments for Psychiatric Disorders: A Systematic Review and Thematic Synthesis of Patient Experiences in Qualitative Studies

Joost J. Breeksema, Alistair Niemeijer, Erwin Krediet, Eric Vermetten, Robert A. Schoevers
CNS Drugs Summary & key facts 2020 207 citations

Researchers collected and read 15 studies where patients described their own experiences with psychedelic treatments for mental disorders. These studies looked at about 180 patient accounts across different drugs and different illnesses. Even though the drugs and treatment settings were very different, many patients described similar helpful processes, such as…

Chemical synthesis and alkaloids Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Ayahuasca Ibogaine

Psychedelic medicine: a re-emerging therapeutic paradigm

Kenneth W. Tupper, Evan Wood, Richard Yensen, Matthew W. Johnson

Researchers around the world have started clinical studies again to see if psychedelic drugs can help treat serious mental health problems. This work picks up after research that stopped around the 1950s. Scientists are running controlled studies to test whether these substances can safely reduce problems like depression, anxiety, addiction…

Chemical synthesis and alkaloids Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Ketamine LSD

Legal highs: staying on top of the flood of novel psychoactive substances

David Baumeister, Luis M. Tojo, Derek K. Tracy

This review explains the fast-growing problem of so-called "legal highs", which are better called novel psychoactive substances or NPS. Unknown labs keep making slightly different chemicals to avoid bans, and this led to about 80 new substances being spotted in one year. The paper groups these drugs into five main…

Forensic Toxicology and Drug Analysis Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Cannabis Ketamine

The therapeutic potential of psilocybin: a systematic review

Jan van Amsterdam, Wim van den Brink
Expert Opinion on Drug Safety Summary & key facts 2022 73 citations

This paper looked across existing studies of psilocybin and found that, when it is given along with psychotherapy or therapy-style support, it looks promising as a treatment for several mental health problems, including cases that did not get better with other treatments. But the authors say the current studies are…

Chemical synthesis and alkaloids Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Psilocybin

The Therapeutic Potential of Psychedelic-assisted Therapies for Symptom Control in Patients Diagnosed With Serious Illness: A Systematic Review

Lucas Oliveira Maia, Yvan Beaussant, Ana Cláudia Mesquita Garcia

This paper looked at 20 clinical trials to see whether therapies that use psychedelic drugs together with talking therapy can help people who have serious, life‑limiting illnesses. The review found that these therapies often helped with psychological and spiritual problems like anxiety, low mood, and fear of dying. The drugs…

Chemical synthesis and alkaloids Complementary and Alternative Medicine Studies Psychedelics and Drug Studies Ketamine LSD

Psychedelics: Alternative and Potential Therapeutic Options for Treating Mood and Anxiety Disorders

Henry Lowe, Ngeh J. Toyang, Blair Steele, Justin Grant, Amza Ali, Lorenzo Gordon, et al.
Molecules Summary & key facts 2022 52 citations

This paper is a review of research about psychedelic drugs and whether they could help with mood and anxiety problems. It explains that these drugs were used for thousands of years in some cultures, then were banned in the 1960s which slowed scientific study. The authors describe a new wave…

Chemical synthesis and alkaloids Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Ayahuasca LSD

Psychedelic Commercialization: A Wide-Spanning Overview of the Emerging Psychedelic Industry

Jacob S. Aday, Brian S. Barnett, Dan Grossman, Kevin S. Murnane, Charles D. Nichols, Peter S. Hendricks
Psychedelic Medicine Summary & key facts 2023 49 citations

This article is a broad review of the new psychedelic industry. The authors look at how psychedelic drugs and clinics moved from decades-old research into a fast-growing business with hundreds of companies and big investment. They describe what companies are trying to sell, point out major scientific, legal, and ethical…

Chemical synthesis and alkaloids Diverse academic research themes Psychedelics and Drug Studies Ayahuasca Ibogaine

The Emerging Field of Psychedelic Psychotherapy

Gregory Barber, Scott T. Aaronson
Current Psychiatry Reports Summary & key facts 2022 48 citations

This review looks at recent research where drugs like MDMA and psilocybin are given inside carefully run therapy programs. People get hours of preparation, one or more drug sessions, and several follow-up therapy sessions to help make sense of the experience. Trials so far show big improvements for some people…

Chemical synthesis and alkaloids Diverse academic research themes Psychedelics and Drug Studies Ayahuasca Ibogaine

Psychedelic therapies reconsidered: compounds, clinical indications, and cautious optimism

Jennifer Mitchell, B. Anderson
Neuropsychopharmacology Summary & key facts 2023 44 citations

This review describes a rapid rise in medical research on psychedelic drugs over the past five years. Several later-stage clinical trials have been published, and many different drugs — including psilocybin, MDMA, ketamine, LSD, ayahuasca, and ibogaine — are being tested for conditions such as depression, post‑traumatic stress, addiction, obsessive‑compulsive…

Chemical synthesis and alkaloids Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies Ayahuasca Ibogaine
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