NCT03177837

Effect of Acetazolamide on Exercise Performance in Patients With Respiratory Disease at Altitude

Effect of Acetazolamide on Exercise Performance in Patients With Chronic Obstructive Pulmonary Disease at Altitude, Assessed by Maximal Cycling Spiroergometry: A Randomized, Placebo-controlled, Double-blind Parallel Trial

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 176 (actual)
• Sponsor: University of Zurich · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

In this trial, the investigators will evaluate the effect of acetazolamide (375 mg per day) vs. placebo on exercise performance at altitude in patients with COPD.

Detailed description

This is a randomized, placebo-controlled, double-blind parallel trial evaluating the effect of acetazolamide (375 mg per day) vs. placebo on exercise performance in lowlanders with chronic obstructive pulmonary disease travelling to altitude. Participants living in the Bishkek area, Kyrgyzstan (760m), will be transferred by car within 4h to the Tuja Ashu high altitude clinic (3200 m), and stay there for 2 days. Acetazolamide 375mg/day (or placebo), will be administered 24 hours before departure at 760 m and during the stay at altitude. Outcomes will be assessed during the stay at 3200 m. Exercise performance will be evaluated by maximal cycling spiroergometry and constant load ergometry.

Conditions

• Chronic Obstructive Pulmonary Disease

Interventions

Type	Name	Description
DRUG	ACETAZOLAMIDE oral capsule	Administration of 125mg acetazolamide in the morning, 250mg in the evening, starting 24 hours before departure to 3200m
DRUG	Placebo oral capsule	Administration of equally looking placebo capsules in the morning and evening, starting 24 hours before departure to 3200m

Timeline

• Start date: 2017-05-24
• Primary completion: 2018-08-02
• Completion: 2018-08-02
• First posted: 2017-06-06
• Last updated: 2019-08-16

Locations

1 site across 1 country: Kyrgyzstan