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A D2 Receptor Occupancy and fMRI Study in Schizophrenic Subjects Treated With Lurasidone

NCT01979679 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 28

Last updated 2013-11-08

No results posted yet for this study

Summary

The purpose of this research study is to measure how many of the dopamine receptors lurasidone occupies throughout the brain of patients with schizophrenia or schizoaffective disorder and over what time period the occupancy occurs. This is research because lurasidone is an investigational medication that has not yet been approved by the Food and Drug Administration (FDA). Dopamine receptors have key roles in many processes, including the control of motivation, learning, and fine motor movement. The degree of occupancy and the transience of occupancy D2 receptor occupancy for optimal clinical response and to prevent relapses is a controversial area that this study will address.

In this study Positron Emission Tomography (PET) scanning will be performed with D2/D3 ligand 18F-fallypride (a radioactive, injectable substance) to help the researchers measure the use of these receptors. Researchers hope that quantifying the amount of receptors being occupied by the medication will help them to determine the best dose of study medication in terms of improvement and least side effects related to body size and gender as well as in preventing relapse that may be related to hypersensitivity. Magnetic Resonance Imaging (fMRI) will also be performed. MRI is a scanning method which makes pictures of parts of the brain using a large magnetic field. This study will use a particular kind of MRI called fMRI, or functional MRI. fMRI takes pictures of the brain while the person is thinking or doing a simple task. fMRI will allow the researchers to investigate patients regional brain activation during cognitive (mental) and emotional tasks.

Conditions

Interventions

DRUG

Lurasidone 80 mg

DRUG

Lurasidone 120 mg

DRUG

Lurasidone 160 mg

Sponsors & Collaborators

  • Dainippon Sumitomo Pharma America

    collaborator INDUSTRY

  • University of California, Irvine

    lead OTHER

Principal Investigators

  • Steven G Potkin, MD · University of California, Irvine

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-12-31
Primary Completion
2013-10-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01979679 on ClinicalTrials.gov