# Randomized, Controlled Trial of Regular Sildenafil Citrate in the Prevention of Altitude Illness

> **NCT00627965** · PHASE4 · COMPLETED · sponsor: **Altitude Physiology Expeditions** · enrollment: 62 (actual)

## Conditions studied

- High Altitude Pulmonary Edema
- Acute Mountain Sickness

## Interventions

- **DRUG:** Sildenafil citrate
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT00627965
- **Lead sponsor:** Altitude Physiology Expeditions
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-03
- **Primary completion:** —
- **Final completion:** 2008-02
- **Target enrollment:** 62 (ACTUAL)
- **Last updated:** 2008-03-04

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00627965

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00627965, "Randomized, Controlled Trial of Regular Sildenafil Citrate in the Prevention of Altitude Illness". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT00627965. Licensed CC0.

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