Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT00194909 · ClinicalTrials.gov registry record · Phase 4
An Open Label, Dose Finding Trial of Viagra for the Treatment of Neuropathic Pain (in Diabetes Mellitus)
A Phase 4 study, sponsored by Weill Medical College of Cornell University.
- Completed
- Registry status
- Phase 4
- Development phase
- 8
- Enrollment target
NCT00194909: Completed Phase 4 study, sponsored by Weill Medical College of Cornell University.
NCT00194909 is a Phase 4 study that has completed, run by Weill Medical College of Cornell University. The registered enrollment target is 8 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00194909, a Phase 4 study, has completed, sponsored by Weill Medical College of Cornell University.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 8 participants
- Enrollment target
Study Summary
The purpose of this study is to study if sildenafil (Viagra) is effective in improving neuropathic pain. This will be an open label study at 3 doses of sildenafil (25 mg, 50 mg and 100 mg). If this study suggests efficacy, the information will be used to plan a placebo controlled, double-blind study in the future.
Interventions
- DRUG sildenafil (Viagra)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 8 participants |
| Start Date | 2004-08 |
| Est. Completion | 2006-07 |
| Phase | Phase 4 |
What the finished NCT00194909 record still lists
NCT00194909 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 8 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 1 intervention - of which sildenafil (Viagra) is the first listed.
NCT00194909 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00194909 about?
NCT00194909 is a clinical study titled "An Open Label, Dose Finding Trial of Viagra for the Treatment of Neuropathic Pain (in Diabetes Mellitus)". The purpose of this study is to study if sildenafil (Viagra) is effective in improving neuropathic pain. This will be an open label study at 3 doses of sildenafil (25 mg, 50 mg and 100 mg). If this study suggests efficacy, the information will be used to plan a placebo controlled, double-blind study...
What is the current status of trial NCT00194909?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 8 participants. The study started on 2004-08. Estimated completion is 2006-07.
What interventions are being tested in trial NCT00194909?
The interventions under investigation include: sildenafil (Viagra) (DRUG).
Who is sponsoring clinical trial NCT00194909?
This trial is sponsored by Weill Medical College of Cornell University, which has 701 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00194909's enrollment target sits among peer trials
8 1972nd of 2000 higher than 20 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
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar registry start date
- NCT05988463 · started 2027-01-01 · Phase 1
Dose-Escalation Study of Artesunate Patients With IPF
- NCT07219706 · started 2026-12-10 · NA
Dietary Fiber and Time Restricted Eating
- NCT02831335 · started 2026-12-01
Technical Development of Multi-Parametric Renocerebral MRI
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia