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A Placebo-Controlled Single-Dose Trial of Sildenafil in Schizophrenia

2014-08-27 03:39:18 | BioPortfolio

Summary

The study is a double-blind, placebo-controlled, random-order, single-dose crossover trial of sildenafil 50 & 100 mg added to stable antipsychotic treatment in schizophrenia patients to assess whether this PDE5 inhibitor improves cognitive functioning (including verbal memory, fluency, attention, spatial memory, motor speed, and executive function) and clinical symptoms (psychotic, negative, mood symptoms, and self-reports of side-effects).

Description

Specific Aims:

1. Evaluate the effects of single doses of sildenafil 50 & 100 mg compared to placebo on cognitive functioning, including verbal memory, fluency, attention, spatial memory, motor speed, and executive function.

2. Evaluate the effects of single doses of sildenafil 50 & 100 mg compared to placebo on psychotic, negative, and mood symptoms.

3. Assess self-reports of side effects of sildenafil 50 & 100 mg.

Location and Subjects:

25 adult outpatients with schizophrenia will be recruited from the Massachusetts General Hospital outpatient clinic or the Freedom Trail Clinic of the Lindemann Center. All research procedures will be performed at the Psychopharmacology Clinic of the Massachusetts General Hospital. Subjects must be English speaking because the cognitive battery has only been validated in English.

Study Design

Allocation: Randomized, Control: Dose Comparison, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Schizophrenia

Intervention

Sildenafil

Location

Massachusetts General Hospital
Boston
Massachusetts
United States
02114

Status

Completed

Source

Massachusetts General Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:39:18-0400

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