Glutathione study for autism fizzles out early

NCT ID NCT05954052

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study aimed to see if taking glutathione by mouth is safe and practical for children and teens with autism. Researchers planned to enroll 24 participants but stopped early with only 6. The goal was to measure changes in behavior and social skills over 12 weeks.

What this could mean

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

Active substance
glutathione
What this could lead to
If it worked, this could point toward a safe supplement to ease some behavioral symptoms in children with autism.
What could go wrong
The study was terminated early with only 6 participants, so results are very limited. It is too small to draw any firm conclusions.

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 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

6 people

The number who actually took part.

Started

Jul 2019

Finished

Aug 2023

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

4 to 17 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Boys and girls ages 4-17 * Current diagnosis of Autism Spectrum Disorder as determined by criteria in DSM-5 * Parents of Children ages 4-17 with a current diagnosis of Autism Spectrum Disorder as determined by criteria in DSM-5 Exclusion Criteria: * Unstable medical illness or clinically significant abnormalities on physical examination; * History of seizures; * History of Hematological disorders; * Myocardial infarction within 6 months; * Current pregnancy or lactation, or inadequate contraception in girls of childbearing potential; * Current or recent (past 3 months) DSM-5 substance abuse or dependence; * Illegal substance use within 2 weeks of study initiation; * Previous treatment with Glutathione; * Current treatment with N-acetylcysteine, milk thistle, Vitamin C, Vitamin B, Grape Seed Extract, Amino Acids, or Zinc * Current treatment with Dextromethorphan, D-cycloserine, Amantadine, Memantine, Lamotrigine or Riluzole * Asthma

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • The University of Chicago Medicine

    Chicago, Illinois, 60637, United States

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