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Recruiting Phase 2 Interventional

Pimavanserin for Rigid-compulsive Symptoms in Autism Spectrum Disorder

ClinicalTrials.gov ID: NCT05999240

Public ClinicalTrials.gov record NCT05999240. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 12, 2026, 2:35 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Target Engagement Study of Pimavanserin for Behavioral Inflexibility With Open Label Trial for Rigid Rigid-compulsive Behavior in Adolescents and Adults With Autism

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This Phase 2 study examines the safety, tolerability, and preliminary efficacy of pimavanserin in individuals with Autism Spectrum Disorder. Male or female participants aged 12 to 40 years of age will be randomized to receive single doses of either placebo or pimavanserin in this randomized, placebo-controlled, cross-over designed study, followed by open label extension.

Study identification

NCT ID
NCT05999240
Recruitment status
Recruiting
Study type
Interventional
Phase
Phase 2
Enrollment
30 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years to 40 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 30, 2025
Primary completion
Oct 30, 2027
Completion
Dec 30, 2027
Last update posted
Sep 1, 2026

2025 – 2027

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
University of Kansas, Center for Research Lawrence Kansas 66045 Recruiting
Center for Autism and the Developing Brain White Plains New York 10605 Recruiting

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05999240, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 1, 2026 · Synced Sep 12, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05999240 live on ClinicalTrials.gov.

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