# A Study to Investigate the Time to Onset of Action of 10 mg and 20 mg of Vardenafil Compared to Placebo in Males With Erectile Dysfunction

> **NCT00665496** · PHASE3 · COMPLETED · sponsor: **Bayer** · enrollment: 732 (actual)

## Conditions studied

- Erectile Dysfunction

## Interventions

- **DRUG:** Levitra (Vardenafil, BAY38-9456)
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00665496
- **Lead sponsor:** Bayer
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-06
- **Primary completion:** —
- **Final completion:** 2003-11
- **Target enrollment:** 732 (ACTUAL)
- **Last updated:** 2014-12-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00665496

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00665496, "A Study to Investigate the Time to Onset of Action of 10 mg and 20 mg of Vardenafil Compared to Placebo in Males With Erectile Dysfunction". Retrieved via AI Analytics 2026-06-30 from https://api.ai-analytics.org/clinical/NCT00665496. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*