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

Status unconfirmed · Phase 4

Conditions studied: Schizophrenia

In brief

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.

Key facts

Study ID

NCT00937261

Run by

University of California, Irvine

People needed

96

Starts

2009-07-01

Expected to finish

2011-01-01

Last updated by the study team

2010-10-28

Who can join

Age: 18 and older, up to 60. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• are currently taking Risperdal and have been on the medication for at least three weeks
• are diagnosed with schizophrenia
• are able to provide written informed consent
• can safely have an MRI

You may not qualify if…

• are treatment resistant or intolerant to Risperdal
• have participated in another drug study in the past 28 days
• are pregnant or trying to become pregnant or are breastfeeding
• are colorblind
• have a history of alcohol, cannabis, or cocaine abuse within two weeks prior to the study
• have a current or past history of a major medical illness or have abnormal lab values which the study doctor feels is significant
• certain medications are also exclusionary including aripiprazole.

Where it is running

• UC Irvine — Irvine, California, United States (enrolling)

Full record on ClinicalTrials.gov

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