High-Altitude Polycythemia Study (NCT07600086) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
High-Altitude Polycythemia Study
China70 participantsStarted 2026-05
Plain-language summary
This study aims to evaluate the clinical efficacy of non-invasive ventilation (NIV) in treating patients with high-altitude polycythemia (HAPC).
Participants will be enrolled according to the international diagnostic criteria for high-altitude polycythemia. The study will use both retrospective cohort and prospective study methods.
All participants will receive standard basic care. In addition, the intervention group will receive non-invasive ventilation treatment using either BiPAP or CPAP mode.
Key measurements, including routine blood tests, liver function, renal function, uric acid, blood lipid profile, electrocardiogram and echocardiography, will be collected as primary and secondary outcome measures to assess the effects of the treatment.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Diagnosed with high-altitude polycythemia (HAPC).
. Aged 18 years or older, with no gender restriction.
. Voluntarily participate in the study and sign the informed consent form.
Exclusion criteria
. Disturbance of consciousness.
. Inability to independently clear airway secretions, with the risk of aspiration.
. Severe upper gastrointestinal bleeding.
. Hemodynamic instability.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change in Hemoglobin (Hb) Concentration
Timeframe: Baseline, 3 months, 6 months after treatment initiation