# Determine If the Stress That Comes With Not Developing an Erection Affects Tadalafil Effects

> **NCT00547599** · PHASE4 · COMPLETED · sponsor: **Eli Lilly and Company** · enrollment: 659 (actual)

## Conditions studied

- Impotence

## Interventions

- **DRUG:** tadalafil

## Key facts

- **NCT ID:** NCT00547599
- **Lead sponsor:** Eli Lilly and Company
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-04
- **Primary completion:** —
- **Final completion:** 2004-01
- **Target enrollment:** 659 (ACTUAL)
- **Last updated:** 2007-10-22

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00547599

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00547599, "Determine If the Stress That Comes With Not Developing an Erection Affects Tadalafil Effects". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00547599. Licensed CC0.

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