Using N-acetylcysteine to reduce repetitive behaviors in children with autism

Targeting the neurobiology of restricted and repetitive behaviors in children with autism using N-acetylcysteine

NIH-funded research Stanford University · NIH-11014325

This study is looking at whether a nutritional supplement called N-acetylcysteine (NAC) can help reduce certain repetitive behaviors in children with autism, and it involves brain scans and a 12-week trial to see how well it works.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionStanford University NIH-funded
Lab location1 site (Stanford, United States)
Project IDNIH-11014325 on NIH RePORTER

What this research studies

This research investigates how N-acetylcysteine (NAC), a nutritional supplement, can help reduce restricted and repetitive behaviors (RRB) in children with autism spectrum disorder (ASD). The study will involve collecting brain imaging data and conducting a randomized controlled trial to assess the effectiveness of NAC over 12 weeks. By examining how NAC affects brain signaling, researchers aim to understand its potential benefits for children exhibiting severe RRB. The ultimate goal is to support the development of new treatment options for children with ASD.

Who could benefit from this research

Good fit: Ideal candidates for this research are children aged 0-11 years diagnosed with autism spectrum disorder who exhibit severe restricted and repetitive behaviors.

Not a fit: Patients who do not have autism spectrum disorder or do not exhibit significant restricted and repetitive behaviors may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could provide a new, effective treatment option for reducing challenging behaviors in children with autism.

How similar studies have performed: Preliminary trials have shown that N-acetylcysteine may effectively reduce the severity of restricted and repetitive behaviors in children with autism, indicating potential for success in this research.

Where this research is happening

Stanford, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions adult with autism spectrum disorder
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.