Clinical trial No longer in our active list Phase 4 Interventional Ages 6 to 18

Testing drug monitoring of risperidone in children with autism

Official title: Safety and Pharmacokinetics of Antipsychotics in Children 2: Studying TDM in an RCT

Run by Erasmus Medical Center · NCT05146245 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing how to safely monitor and adjust the medication risperidone for children with autism to help manage their behavior while minimizing side effects.

More Autism Spectrum Disorder trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages6 Years to 18 Years
SexAll
Enrollment140 (estimated)
SponsorErasmus Medical Center
Academic / other
Locations1 site (Rotterdam)
Trial IDNCT05146245 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 6 to 18 years with a clinical diagnosis of autism spectrum disorder and comorbid behavioral issues who are starting treatment with risperidone.

Probably not a fit

Patients with diabetes, certain congenital syndromes, or those who have recently been treated with antipsychotic medications may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to evaluate the safety and pharmacokinetics of risperidone in children aged 6 to 18 years diagnosed with autism spectrum disorder and behavioral problems. It focuses on the use of therapeutic drug monitoring to manage the medication's dosage effectively, potentially reducing metabolic side effects while maintaining its clinical effectiveness. The study will involve monitoring plasma levels of risperidone to tailor treatment for individual patients. Participants will be recruited from the Erasmus Medical Center in Rotterdam.

Why it matters

Potential benefit: If successful, this approach could lead to safer and more effective treatment options for children with autism spectrum disorder.

How similar studies have gone: Other studies have shown promise in using therapeutic drug monitoring for antipsychotics, suggesting this approach may be beneficial.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 6 to 18 years
* Documented clinical diagnosis of autism spectrum disorder according to DSM IV or DSM V and comorbid behavioural problems
* To start treatment with risperidone

Exclusion Criteria:

* Diabetes type I or II
* Congenital or acquired syndrome associated with changes in appetite, body weight or lipid profile (e.g. Prader Willi)
* Treatment with antipsychotic medication within the last 6 months
* Known Long QT syndrome (LQTS)
* Pregnancy

Where it's running

  • Erasmus Medical Center
    Rotterdam, Netherlands
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.