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Psychedelic clinical trial registry · updated 2026-08-25

86,898 people are needed
for these trials
right now.

Across 218 trials testing LSD, psilocybin, MDMA and ketamine for depression, PTSD, anxiety and addiction. Taking part is free, it is supervised, and for most people in most of the country it is the only lawful way in.

This is the registry of all of it, drawn from the public federal record. It does not tell anyone what to take, how much, or where to get it. For any medical question, talk to a doctor.

Find a trial recruiting now

218 open

Search by condition, or pick a state, to see what is open.

This filters a public registry. It does not decide whether you are eligible: that is done by each trial’s own investigators at a screening visit. Nothing you type here leaves your browser.

218
Recruiting now
168
Want patients, not healthy volunteers
43
US states with a site
176
Conditions being tested

By substance

Seven molecules, and how far each has come

The renaissance, as a shape

From 14 trials a year to 124

Psychedelic research effectively stopped for thirty years and restarted in the last ten. This is that restart in the registry’s own numbers, stacked by substance so you can see psilocybin arriving late and hard.

KetaminePsilocybinMDMALSDDMT

How far along any of this actually is

The pipeline, honestly

Every trial is counted once, at the furthest phase it has reached. Most sit in Phase 1 and Phase 2, and Phase 3 is thin by comparison. That matters when you read the news: a striking finding from an early-phase study is a result from one of the tall bars here, and an early-phase result is a reason to run a larger trial, not proof that something works.

Phase 1Safety and dose
A small group, often healthy volunteers. Establishes what dose can be given and what happens at it. Not designed to show whether the drug works.
Phase 2Does it work, and what goes wrong
A larger group who have the condition. Looks for a treatment effect and catalogs side effects. Most trials on this site are here or in Phase 1.
Phase 3Confirmation against a comparison
Hundreds to thousands of participants, measured against a placebo or an existing treatment. The last clinical stage before a company can file for approval.
Phase 4After approval
Monitoring once a medicine is on the market, for rarer effects and interactions that only appear at scale.

The near end of the pipeline

Phase 3 programs

Phase 3 is the last stage of clinical testing before a company can apply for approval. 96 of the 1,033 trials in this registry have reached it. What happens to those trials decides whether any of these medicines reach a pharmacy, where a doctor could prescribe them.

Recruiting now

218 trials are accepting participants

TrialStatusPhaseSubstanceSites
Positioning of Esketamine Treatment in the Real-world Management of DepressionNCT06103760 · Royal North Shore HospitalRecruitingPhase 4ketamine1
Esketamine Versus Crisis Response Planning Versus Optimized Treatment as Usual for Suicide Prevention: A Pragmatic Controlled Trial in Two Brazilian CitiesNCT07120477 · University of Sao PauloRecruitingPhase 4ketamine1
Opioid Free Anesthesia-Analgesia Strategy and Surgical Stress in Elective Open Abdominal Aortic Aneurysm RepairNCT04894864 · University of CreteRecruitingPhase 4ketamine1
Comparative Effectiveness Study of Two Forms of Ketamine for Treatment-resistant DepressionNCT06278779 · The George InstituteRecruitingPhase 4ketamine7
Ketamine for Pain, Opioid Use, and Mental Health in Orthopedic Trauma PatientsNCT06903819 · Texas Tech University Health Sciences CenterRecruitingPhase 4ketamine2
Esketamine With or Without Integration Therapy for Treatment-Resistant DepressionNCT07369102 · University of Puerto RicoRecruitingPhase 4ketamine2
Long-Term Maintenance With Ketamine and Esketamine for Reduction of Suicide in High-Risk Patients With DepressionNCT05450432 · Massachusetts General HospitalRecruitingPhase 4ketamine1
Determination of ED50 and ED95 With Clinical Efficacy of Intranasal Dexmedetomidine Combined With Esketamine for Preoperative Sedation in Pediatric General AnesthesiaNCT06853431 · Second Affiliated Hospital of Wenzhou Medical UniversityRecruitingPhase 4ketamine2
Neural Circuit Effects of Ketamine in DepressionNCT06213324 · Icahn School of Medicine at Mount SinaiRecruitingPhase 4ketamine1
Comparison of Esketamine/Propofol and Methohexital Anesthesia for ECTNCT05655754 · Medical University of ViennaRecruitingPhase 4ketamine1

Everything recruiting →

Status is as recorded on ClinicalTrials.gov API v2 at the 2026-08-25 data build. A trial can close to entry between builds, so the registry record is always the authority.

By indication

What these are being tested for

By place

Where trials are running

Results scheduled for release

When these trials report

A trial answers its question on its primary completion date, the day the last participant is measured for the trial’s main outcome. 285 of those dates are still in the future. The Phase 3 trials among them are the ones that decide whether any of this becomes a prescription.

Nothing open for you today?

That changes constantly

Trials open, fill and close on their own schedule, and the registry turns over far faster than anyone thinks to check a website. If nothing matches you today, that is a statement about today.

We will email you when something does. Your address and the topic you asked about is all we keep.

Research alerts

Get a notification when a trial for any psychedelic trial starts recruiting

This registry is rebuilt every day. If no trial is recruiting for you today, that can change within weeks.

This form sends your email address and the topic of this page to Brevo, our email provider, which stores them on servers in the European Union. We never sell that address, never share it with anyone, and never use it for advertising. One email deletes it. What is held, and where.

How this works

A registry, not an advocate

Every row is a public record

All 1,033 trials come from ClinicalTrials.gov API v2. Nothing here is written by a model, and every page carries the NCT number so you can check it against the source.

No advice, no sourcing

This site does not tell anyone what to take, how much, or where to get it. It publishes what is in the registry and points at the people running it.

The search runs on your device

The trial search filters a file your browser has already downloaded, so the condition, state and substance you pick are never sent here. The site counts page views and carries no advertising trackers at all, and the analytics it does run is barred from joining what you read to any ad profile. The privacy policy sets out exactly what leaves your browser.