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NCT05494398Enrolling by invitationPhase 2/3

Targeting the Neurobiology of RRB in Autism Using N-acetylcysteine: Open Label

Targeting the Neurobiology of Restricted and Repetitive Behaviors in Children With Autism Using N-acetylcysteine: an Open Label Extension

Source: ClinicalTrials.gov · Last updated 15 May 2026

Brief summary (registry, in English)

The goal of this study is to target the neurobiology of restricted and repetitive behaviors in children with autism spectrum disorder using N-acetylcysteine (NAC), a well-tolerated nutritional supplement that has shown promise for reducing symptom severity in recent small-scale trials. The findings from this research will shed light on the mechanisms of action underlying the clinical benefits of NAC and the effects of NAC on altering restricted and repetitive behavior symptom severity in children with autism spectrum disorder.

Status (registry)
Enrolling by invitation
Phase (registry)
Phase 2/3
Study type
Interventional
Enrollment
144 (estimated)
First submitted
8 Aug 2022
Start date
12 Mar 2024
Primary completion date
31 Jul 2028
Lead sponsor
Stanford University
Diseases
Autism
NCT number
NCT05494398

What you commit to

  • Study type: Interventional · Phase 2/3
  • Planned participants: 144
  • From 12 Mar 2024 to the primary completion date, 31 Jul 2028
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other

  • the presence of significant medical problems that reduce medical stability.

Who the study is looking for

  • participation in an associated single-dose (IRB-54931, NCT04278898) or randomized, controlled trial of NAC (IRB- 68353, NCT05664789).
  • stable medication regimens (≥ 30 days) with no anticipated changes during the trial.

Age in the registry: 3 years to 13 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Stanford University School of Medicine
Coordinator of this site? Confirm its status
StanfordUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.