Clinical trialNCT00937261UnknownPhase 4Interventional

Contrasting the Brain Effects of Risperidone and Invega With Functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) Scanning

SponsorUniversity of California, IrvineEnrollment96Schizophrenia

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of this study is to better understand brain function and psychiatric and neurological illness when taking Invega or Risperdal. The objective is to compare the brain effects of Invega to Risperdal in patients with Schizophrenia. This comparison will be evaluated with PET imaging, fMRI, and neurological ratings and assessments.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Steven G Potkin, M.D.
UC Irvine
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Uc Irvine
Irvine, California, United States
Steven G Potkin, M.D. →
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Paliperidone →Risperidone →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Jul 2009
Primary completion: 31 Jul 2010
Completion: 31 Jan 2011
Last update posted: 28 Oct 2010
Registered enrollment: 96
Registry id: NCT00937261

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.