Healthy Volunteer Study of Sildenafil Effects Upon Vision

Blindness Clinical Trial

Official title:

A Double-Blind, Randomised, Placebo Controlled Healthy Volunteer Study to Investigate the Nature and Origin of the Disturbance of Vision Induced by Single Oral Doses of Sildenafil

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00251784
• Other study ID #: LREC 98/297
• Status: Completed
• Phase: Phase 4
• First received: November 9, 2005
• Last updated: November 9, 2005
• Start date: February 2002
• Est. completion date: June 2003

Study information

• Verified date: December 2003
• Source: University of Cambridge
• Contact: n/a
• Is FDA regulated: No
• Health authority: United Kingdom: National Health Service
• Study type: Interventional

Clinical Trial Summary

Patients sometimes report subjective visual effects when taking sildenafil. Our study set out to measure these in a controlled setting. Subjects were asked to detect patterns presented on a monitor screen.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 0
• Est. completion date: June 2003
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years and older

Eligibility

Inclusion Criteria: male -

Exclusion Criteria:

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double-Blind, Primary Purpose: Educational/Counseling/Training

Related Conditions & MeSH terms

• Blindness

Intervention

Drug:
• Sildenafil

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
University of Cambridge