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CBD pills tested for autism anxiety in new study

NCT ID NCT05015439

Symptom relief Sponsor: Johns Hopkins University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether cannabidiol (CBD) pills can reduce anxiety, mood problems, sleep issues, and agitation in adults with autism spectrum disorder (ASD). 40 adults with ASD will receive CBD for 6 weeks and a placebo for 6 weeks, with a 2-week break in between. Researchers will track changes in behavior, anxiety, and daily functioning using standard questionnaires.

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 40 people

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

Started

Apr 2023

Expected to finish

Dec 2026

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

18 years and older

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: * ASD based on Diagnostic Statistical Manual 5 (DSM-5) criteria * a significant mood disorder, sleep disturbance, or exhibit agitation, aggression, or other aberrant behavior that is interfering with function and quality of life, as determined by their psychiatric interview Exclusion Criteria: * history of alcohol or substance use disorder * positive urine tetrahydrocannabinol screen at onset of study * individuals who are pregnant, lactating, or planning pregnancy during or within three months of completing the trial * individuals with unstable liver disease * individuals taking medications where CBD interaction might significantly alter drug levels, such as clobazam

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Conditions

The condition(s) this trial relates to.

autism spectrum disorder

As listed by the trial registrant

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

Autism spectrum disorder

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

  • JHBMC

    RECRUITING

    Baltimore, Maryland, 21224, United States

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