A Feasibility Study of N-acetylcysteine for Self-injurious Behavior in Children With Autism Spectrum Disorder

"Participants will start with taking 900mg of NAC once per day for one week (study days 1-7). At Day 7, parents (or primary caregiver) and subjects will return to the study site to review adverse events.~In the absence of dose limiting adverse events attributable to the study drug, the dose will be gradually increased to 900 mg twice per day for study days 8-28.~If this dose is well-tolerated, the dose will be increased to 900 three times per day for study days 29-63."

"Participants will start with taking 900mg of the placebo once per day for one week (study days 1-7). At Day 7, parents (or primary caregiver) and subjects will return to the study site to review adverse events. The dosing for the placebo will increase in the same fashion as the active treatment.~In the absence of dose limiting adverse events attributable to the study drug, the dose will be gradually increased to 900 mg twice per day for study days 8-28.~If this dose is well-tolerated, the dose will be increased to 900 three times per day for study days 29-63."