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Psychedelic combo tested for safety in small human study

NCT ID NCT07079930

Knowledge-focused Sponsor: Hadassah Medical Organization Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage study will give 10 healthy adults a single dose of psilocybin (the active ingredient in magic mushrooms) combined with D-serine, an amino acid. Researchers want to see if D-serine can tone down the psychedelic effects and improve safety. The goal is to find the right dose for future trials, not to treat any disease.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
psilocybin and D-serine
What this could lead to
If successful, this could help determine a safe dose for future studies exploring psilocybin's effects when combined with D-serine.
What could go wrong
This is a very early, small Phase 1 trial in only 10 healthy volunteers. It is designed to test safety, not effectiveness, and may not lead to any treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 10 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2025

Expected to finish

Feb 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

25 to 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Aged 25-60 years, male or female. 2. Medically healthy, as confirmed by a comprehensive clinical assessment. 3. Written informed consent provided. Exclusion Criteria: 1. History of any Axis 1 psychiatric disorder requiring pharmacotherapy such as schizophrenia, schizoaffective disorder, any other psychotic disorder, bipolar disorder, as well as non-psychotic disorders such as generalized anxiety disorder, major depressive disorder, obsessive-compulsive disorder, posttraumatic stress disorder. 2. Family history (among first-degree relatives) of schizophrenia, bipolar disorder, or other psychotic disorder 3. History of cardiovascular disorders. 4. Pregnant or breastfeeding women or women of childbearing age not using effective contraception. 5. Use of psilocybin or other psychedelic compound in the 12 months preceding the study 6. Use of medications that interact with psilocybin or D-Serine. 7. Positive urinary drug screening.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy volunteers

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Hadassah Medical Organization, Jerusalem, Israel

    RECRUITING

    Jerusalem, Israel

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