NCT06489691Completed
High Altitude Residents With High Altitude Pulmonary Hypertension (HAPH), 6MWT Assessed at High Altitude (3200m) vs Low Altitude (760m)
Comparative Study of 6-minute Walk Distance (6MWD) in Patients With High Altitude Pulmonary Hypertension Permanently Residing Above 2500 Meters When Assessed Near Resident High Altitude (HA) at 3200m vs. at Low Altitude (LA) 760m
Source: ClinicalTrials.gov · Last updated 22 Jan 2026
Brief summary (registry, in English)
To study the effect of relocation from 3200m (Aksay) to 760m (Bishkek) in highlanders with High Altitude Pulmonary Hypertension (HAPH) who permanently live \>2500m on 6-minute walk distance (6MWD)
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 24 (actual)
- First submitted
- 28 Jun 2024
- Start date
- 2 Jul 2024
- Primary completion date
- 27 Sept 2024
- Lead sponsor
- University of Zurich
- NCT number
- NCT06489691
What you commit to
- Study type: Interventional
- Participants enrolled: 24
- From 2 Jul 2024 to the primary completion date, 27 Sept 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Patients with moderate to severe concomitant lung disease (FEV1\<70% or forced vital capacity \<70%), severe parenchymal lung disease, heavy smoking \>20 cigarettes/day or \>20 pack-years.
- Regular use of medication that affects control of breathing (benzodiazepines, opioids, acetazolamide)
Other illness
- Coexistent unstable systemic hypertension or coronary artery disease that required adjustment of medication within the last 2 months
Other
- Highlanders who cannot follow the study investigations,
Who the study is looking for
- Permanently living \>2500 m
- HAPH diagnosed with a minimum RV/RA of 30 mmHg assessed by echocardiography at an altitude of 3200 m
- Written informed consent
Age in the registry: 18 years to 80 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Aksay Medical Center Coordinator of this site? Confirm its status | Aksay Plateau, Naryn, Kyrgyzstan | Kyrgyzstan | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.