Healthy Volunteer Study of Sildenafil Effects Upon Vision
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
1 other identifier
interventional
N/A
0 countries
N/A
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
Started Feb 2002
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2002
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2003
CompletedFirst Submitted
Initial submission to the registry
November 9, 2005
CompletedFirst Posted
Study publicly available on registry
November 10, 2005
CompletedNovember 10, 2005
December 1, 2003
November 9, 2005
November 9, 2005
Conditions
Interventions
Eligibility Criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Morris J Brown, MD
University of Cambridge
- STUDY DIRECTOR
John Mollon, FRS
University of Cambridge
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- ECT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
Study Record Dates
First Submitted
November 9, 2005
First Posted
November 10, 2005
Study Start
February 1, 2002
Study Completion
June 1, 2003
Last Updated
November 10, 2005
Record last verified: 2003-12