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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 12 December 2020
Main ID:  NCT03177850
Date of registration: 23/05/2017
Prospective Registration: Yes
Primary sponsor: University of Zurich
Public title: Effect of Acetazolamide on Sleep Related Breathing Disturbances in Patients With Respiratory Disease at Altitude
Scientific title: Effect of Acetazolamide on Sleep Related Breathing Disturbances in Patients With Chronic Obstructive Pulmonary Disease at Altitude, Assessed by Respiratory Polygraphy: A Randomized, Placebo-controlled, Double-blind Parallel Trial
Date of first enrolment: May 24, 2017
Target sample size: 185
Recruitment status: Completed
URL:  https://clinicaltrials.gov/show/NCT03177850
Study type:  Interventional
Study design:  Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Prevention. Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor).  
Phase:  Phase 4
Countries of recruitment
Kyrgyzstan
Contacts
Name:     Talant M Sooronbaev, MD
Address: 
Telephone:
Email:
Affiliation:  National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan
Name:     Konrad E Bloch, MD
Address: 
Telephone:
Email:
Affiliation:  University of Zurich
Key inclusion & exclusion 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



Age minimum: 18 Years
Age maximum: 75 Years
Gender: All
Health Condition(s) or Problem(s) studied
Chronic Obstructive Pulmonary Disease
Intervention(s)
Drug: Placebo oral capsule
Drug: ACETAZOLAMIDE oral capsule
Primary Outcome(s)
Change in nocturnal oxygen saturation [Time Frame: night 1 at 760m and night 1 at 3200 m]
Change in nocturnal oxygen desaturation index [Time Frame: night 1 at 760m and night 1 at 3200 m]
Secondary Outcome(s)
Change in apnea/hypopnea index [Time Frame: night 1 at 760m and night 2 at 3200 m]
Change in nocturnal oxygen saturation [Time Frame: night 1 at 760m and night 2 at 3200 m]
Change in apnea/hypopnea index [Time Frame: night 1 at 760m and night 1 at 3200 m]
Change in subjective sleepiness and sleep quality [Time Frame: Day 1 and 2 at 760m and 3200m]
Change in nocturnal oxygen desaturation index [Time Frame: night 1 at 760m and night 2 at 3200 m]
Secondary ID(s)
2017-00137D
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
National Center of Cardiology and Internal Medicine named after academician M.Mirrakhimov
Ethics review
Results
Results available:
Date Posted:
Date Completed:
URL:
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