Papers

Research literature with structured metadata.

Trials

Registered studies by status, phase, and compound.

Topics

Indications and themes psychedelics are researched for.

Compounds

Evidence across molecules with rich data.

Countries

Regulation, access, and research activity by region.

Stakeholders

Organizations shaping the space across research, policy, and funding.

People

Investigators, clinicians, and authors with mapped output.

Courses

Training programs and certifications across modalities.

Events

Conferences, workshops, and convenings by date and focus.

Results

Compare outcome data across trials and publications.

Research Snapshot

One-page overview of trials, participants, papers, and research networks.

Clinical Guidelines

Trial-anchored manuals and protocol guidance with competency mapping.

Research recaps

Monthly evidence summaries with key takeaways.

Map of research

Landscape view of trials, compounds, and outcomes.

Newsletter

Weekly or daily updates on trials, publications, analysis, and more.

Research Groups

Worldwide map of psychedelic research centres by region.

Road to Access

Science, regulation, and economics on the path to patient access.

Research Network

Interactive co-authorship map of psychedelic researchers.

Top papers

Find needles in the haystack of psychedelic research per topic.

AskBeta
Pricing

The intelligence layer for psychedelic research.

Company

  • About
  • Contact
  • Newsletter

Product

  • Feedback
  • Roadmap
  • Changelog
  • API
  • Partners
  • Clinical Guidelines

Legal

  • Privacy
  • Terms

© 2026 Blossom. All rights reserved.

Home/Research/LSD/Safety & Risk Management

LSD for Safety & Risk Management

49 papers and 1 clinical trial exploring lsd as a treatment for safety & risk management.

Compoundclassic psychedelic

LSD

LSD is a classic psychedelic ergoline with high potency at microgram doses and an 8-12 hour duration of action, mediated primarily via 5-HT2A receptor agonism. Modern Phase IIb data in generalised anxiety disorder and FDA Breakthrough Therapy Designation for MM120 have reignited clinical development.

Full LSD profile
IndicationMental health disorders affect over 900 million people worldwide, with conditions like PTSD and depression being among the most prevalent.

Safety & Risk Management

Safety and risk management in psychedelic therapy remains a critical area of research, necessitating vigilant assessment of potential adverse effects as clinical usage expands. Current efforts focus on ensuring that therapeutic practices minimise harm while maximising efficacy for a range of conditions.

Full Safety & Risk Management profile

Academic Research

49 papers
Open Accessindividual

Efficacy and Safety of the Neuroplastogen TSND-201 for the Treatment of PTSD A Randomized Clinical Trial

In a multicentre, double‑blind, placebo‑controlled phase 2 trial of 65 adults with chronic PTSD, once‑weekly oral TSND‑201 produced significantly greater reductions in clinician‑rated PTSD severity (CAPS‑5; LS mean difference 9.64, P = .01) and improvements in self‑reported symptoms, functioning and depression versus placebo. TSND‑201 was generally well tolerated — common adverse events included headache, decreased appetite, nausea, dizziness and transient blood‑pressure increases — supporting its potential as a rapid‑acting, durable treatment for PTSD.

Published
February 18, 2026
Journal
JAMA Psychiatry
Authors
Jones, A., Warner-Schmidt, J., Kwak, H., Stogniew, M., Mandell, B., Ching, T. H., Stein, M. B., Kelmendi, B.
Open Accessindividual

LSD microdosing in major depressive disorder: results from an open-label trial

This open-label Phase IIa trial (n=19, 15 male) found that an 8-week regimen of microdosed LSD (8μg initially, then 6-20μg twice weekly) for major depressive disorder was well-tolerated with no serious adverse events or cardiac valvulopathy, achieved 59.5% reduction in MADRS scores sustained for six months, and had only one withdrawal due to anxiety.

Published
February 1, 2026
Journal
Neuropharmacology
Authors
Daldegan-Bueno, D., Donegan, C. J., Sumner, R. L., Forsyth, A., Evans, W. J., Alshakhouri, M., Reynolds, L. M, Roop, P., Ponton, R., Smith, T., Hoeh, N. R., Allen, N., Sundram, F., Menkes, D. B., Muthukumaraswamy, S.
Open Accessindividual

Effects of LSD and Psilocybin on Heart Rate in Patients Receiving Psychedelic Treatment for Depressive and Anxiety Disorders: A Retrospective Observational Study

In this retrospective study of 30 patients receiving LSD or psilocybin for treatment‑resistant depression or anxiety, LSD produced a delayed, sustained increase in heart rate peaking at 3–4 hours while psilocybin showed an earlier decline, with a significant time × substance interaction that persisted after adjusting for age and anxiety and no serious cardiovascular events observed. These preliminary findings suggest distinct temporal cardiovascular profiles for LSD versus psilocybin but should be interpreted cautiously given the retrospective design, small sample and dose imbalance.

Published
December 19, 2025
Journal
Psychology International
Authors
Cheng, M., Aboulafia-Brakha, T., Buchard, A., Boyanova Anastasova, R., Girani, L., Breitenmoser, A., Alaux, S., Mabilais, C., Amberger, C., Seragnoli, F., Furtado, L., Thorens, G., Zullino, D., Penzenstadler, L.
Open Accessindividual

Naturalistic psychedelic use and changes in depressive symptoms

This longitudinal observational study (n=12,345) of U.S. residents found that naturalistic psychedelic use (n=505, 4.1% of participants) was associated with modest increases in depressive symptoms, particularly when occurring in 'risk contexts' characterised by negative mindset and lack of psychological support, with challenging psychedelic experiences mediating this relationship and suggesting that unsupervised psychedelic use may not be generally therapeutic and could worsen depression under certain circumstances.

Published
December 1, 2025
Journal
Journal of Affective Disorders
Authors
Simonsson, O., Hendricks, P. S., Swords, C. M., Osika, W., Goldberg, S. B.
Paywallindividual

Single Treatment With MM120 (Lysergide) in Generalized Anxiety Disorder: A Randomized Clinical Trial

In a multicentre phase 2b randomised placebo‑controlled trial of 198 adults with moderate to severe GAD, a single dose of MM120 (lysergide D‑tartrate) produced a dose‑dependent reduction in HAM‑A scores at 4 weeks, with 100 µg and 200 µg showing significant improvements versus placebo (least‑squares mean differences −5.0 and −6.0 points, respectively). Adverse events were dose‑related—most commonly visual perceptual changes and nausea—supporting the efficacy and informing dose selection for phase 3 trials.

Published
October 21, 2025
Journal
JAMA
Authors
Robison, R., Barrow, R., Conant, C., Foster, E., Freedman, J. M., Jacobsen, P. L., Karas, S. M., Karlin, D. R., Solomon, T. M., Wernli, M. H., Fava, M. F., Jemisen, J.
Open Accessindividual

Efficacy and safety of low- versus high-dose-LSD-assisted therapy in patients with major depression: A randomized trial

This double-blind controlled trial (n=61) found that high-dose LSD-assisted therapy (100μg + 200μg) reduced depression symptoms more than low-dose LSD (25μg + 25μg) in patients with moderate-to-severe major depressive disorder (MDD), with benefits lasting up to 12 weeks and similar side effects between groups.

Published
September 1, 2025
Journal
Med
Authors
Mu, F., Zaczek, H., Becker, A. M., Auernig, M., Boehlke, C., Liechti, M. E., Ley, L., Borgwardt, S., Santos De Jesus, J., Loh, N., Kohut, J.

Clinical Trials

1 trial
RecruitingPhase II

Lysergic Acid Diethylamide (LSD) as Treatment for Cluster Headache

Double-blind, randomised, placebo-controlled crossover study (n=30) testing oral LSD pulse regimen (3 × 100 µg over 3 weeks) versus placebo in patients with cluster headache.

Started
January 2, 2019
Type
interventional
Blinding
quadruple
Randomized
Yes
Registry ID
NCT03781128

Explore further

Search all LSD papers Search all Safety & Risk Management trials Full LSD profile Full Safety & Risk Management profile