Clinical Trial of Tolcapone for Cognition in Schizophrenia
Stopped early · Phase 2 · Has a placebo group
Conditions studied: Schizophrenia
In brief
This study will evaluate whether Tolcapone improves cognition in healthy volunteers as well as patients with schizophrenia. Talcapone is a drug that has been FDA approved for Attention Deficit Disorder and allegedly increase the amount of the neurotransmitter dopamine in the frontal cortex of the brain. ...
Key facts
- Study ID
- NCT00044083
- Run by
- National Institute of Mental Health (NIMH)
- People needed
- 210
- Starts
- 2002-08-01
- Expected to finish
- 2015-12-01
- Last updated by the study team
- 2018-09-27
Who can join
Age: 18 and older, up to 50. Sex: any. Healthy volunteers: accepted.
You may not qualify if…
- Normal volunteers with an Axis I or Axis II disorder obtained either from prior SCID interview in Protocol 95-M-0150 or through a screening interview will be excluded.
- Subjects with a history of cardiovascular disease, liver disease and other medical illnesses, and untreated or uncontrolled hypertension will be excluded. An electrocardiogram, blood pressure, pulse rate and metabolic panel including LFTs will be checked on all subjects prior to participation in the study. Individuals with persistent tardive dyskinesia or abnormal LFTs, or individuals with significant history of alcoholism or liver enzyme elevation will be excluded from the study.
- Schizophrenic patients taking clozapine, a COMT inhibitor, any illicit drugs of abuse, or MAO inhibitors will be excluded.
- Normal control subjects taking any medications other than occasional NSAI will be excluded.
- Pregnant women. Women of childbearing potential will undergo a urine pregnancy test the day the study initiates and screened by history for the possibility of pregnancy.
Where it is running
- National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States
Full record on ClinicalTrials.gov
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