Effect of Acetazolamide on Right Ventricular Function During Exercise in Patients With Respiratory Disease at Altitude

• Status: Completed
• Trial end date: 2018-08-02
• Target enrollment: 0
• Participant gender: All

Summary

This trial will evaluate the effect of acetazolamide (375 mg per day) vs. placebo on right ventricular function during exercise at acute altitude exposure in patients with COPD.

• Phase: Phase 4
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: University of Zurich
• Collaborator: National Center of Cardiology and Internal Medicine named after academician M.Mirrakhimov
• Treatments: Acetazolamide

Criteria

Inclusion Criteria:

• Male and female patients, age 18-75 yrs.

• COPD diagnosed according to GOLD, FEV1 40-80% predicted, SpO2 ≥92% at 750 m.

• Born, raised and currently living at low altitude (<800m).

• Written informed consent.

Exclusion Criteria:

• COPD exacerbation, very severe COPD with hypoxemia at low altitude (FEV1/FVC <0.7, FEV1 <40% predicted, oxygen saturation on room air <92% at 750 m).

• Comorbidities such as uncontrolled cardiovascular disease, i.e., unstable systemic arterial hypertension, coronary artery disease; previous stroke; OSA; pneumothorax in the last 2 months.

• Internal, neurologic, rheumatologic or psychiatric disease including current heavy smoking (>20 cigarettes per day)

• Known renal failure or allergy to acetazolamide and other sulfonamides