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NCT00333281 · ClinicalTrials.gov registry record · Phase 4
A Study of Visual Effects of Erectile Dysfunction Medications Dosed Daily for Six Months
A Phase 4 study, sponsored by Eli Lilly and Company.
- Completed
- Registry status
- Phase 4
- Development phase
- 198
- Enrollment target
NCT00333281: Completed Phase 4 study, sponsored by Eli Lilly and Company.
NCT00333281 is a Phase 4 study that has completed, run by Eli Lilly and Company. The registered enrollment target is 198 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (62% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00333281, a Phase 4 study, has completed, sponsored by Eli Lilly and Company.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 198 participants
- Enrollment target
Study Summary
This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the effects on vision of six months of daily dosing of 5 mg tadalafil or 50 mg sildenafil compared with placebo.
Interventions
- DRUG tadalafil
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 198 participants |
| Start Date | 2005-06 |
| Est. Completion | 2006-08 |
| Phase | Phase 4 |
What the finished NCT00333281 record still lists
NCT00333281 is an interventional study that assigns participants to a tested intervention. The registered 198 participants enrollment target is mid-sized for trials with a published cap, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (62% lower).
The record links to 0 conditions, and to 1 intervention - of which tadalafil is the first listed.
NCT00333281 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00333281 about?
NCT00333281 is a clinical study titled "A Study of Visual Effects of Erectile Dysfunction Medications Dosed Daily for Six Months". This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the effects on vision of six months of daily dosing of 5 mg tadalafil or 50 mg sildenafil compared with placebo.
What is the current status of trial NCT00333281?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 198 participants. The study started on 2005-06. Estimated completion is 2006-08.
What interventions are being tested in trial NCT00333281?
The interventions under investigation include: tadalafil (DRUG).
Who is sponsoring clinical trial NCT00333281?
This trial is sponsored by Eli Lilly and Company, which has 1,341 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00333281's enrollment target sits among peer trials
198 446th of 2000 higher than 1,553 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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