Menu
Start Screening

Frontier mental health research: psychedelics & drug studies

Each month our editorial team sifts through hundreds of papers and curates notable findings—for practitioners and informed readers who want to stay current with the evidence. Subscribe to the monthly Research Digest for expert analysis and concise summaries of key papers.

Placebo JAMA Psychiatry

2 papers

Efficacy of Esketamine Nasal Spray Plus Oral Antidepressant Treatment for Relapse Prevention in Patients With Treatment-Resistant Depression

Ella Daly, Madhukar H. Trivedi, Adam Janik, Honglan Li, Yun Zhang, Xiang Li, et al.
JAMA Psychiatry Summary & key facts 2019 726 citations

This phase 3, double-blind trial tested whether continuing esketamine nasal spray plus an oral antidepressant could delay relapse in adults with treatment-resistant depression who had already improved after an initial esketamine course. Of 297 patients who entered the randomized phase, continuing esketamine reduced relapse compared with switching to placebo nasal…

Mental Health Research Topics Treatment of Major Depression Tryptophan and brain disorders

Safety and Efficacy of Repeated Low-Dose LSD for ADHD Treatment in Adults

Lorenz Mueller, Joyce Santos de Jesus, Yasmin Schmid, Felix Müller, A. Becker, Aaron Klaiber, et al.
JAMA Psychiatry Summary & key facts 2025 7 citations

This was a 6-week, double-blind, placebo-controlled trial that tested low-dose LSD (20 μg) given twice weekly in 53 adults with moderate to severe ADHD. Both the LSD group and the placebo group showed similar symptom reductions by week 6 (LSD mean change on the ADHD rating scale −7.1 points; placebo…

Attention Deficit Hyperactivity Disorder Neurotransmitter Receptor Influence on Behavior Psychedelics and Drug Studies
Summaries and links are for general information and education only. They are not a substitute for reading the original publication or for professional medical, legal, or other advice. Always refer to the linked source for the full study.