# Effect of Acetazolamide on Acute Mountain Sickness in Lowlanders Older Than 40 Years

> **NCT03561675** · PHASE4 · COMPLETED · sponsor: **University of Zurich** · enrollment: 349 (actual)

## Conditions studied

- Acute Mountain Sickness

## Interventions

- **DRUG:** ACETAZOLAMIDE oral capsule
- **DRUG:** Placebo oral capsule

## Key facts

- **NCT ID:** NCT03561675
- **Lead sponsor:** University of Zurich
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2018-05-15
- **Primary completion:** 2019-08-31
- **Final completion:** 2019-08-31
- **Target enrollment:** 349 (ACTUAL)
- **Last updated:** 2021-05-13

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03561675

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03561675, "Effect of Acetazolamide on Acute Mountain Sickness in Lowlanders Older Than 40 Years". Retrieved via AI Analytics 2026-06-13 from https://api.ai-analytics.org/clinical/NCT03561675. Licensed CC0.

---

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