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Role of the renin-angiotensin system in the cardiovascular, metabolic, neurologic and respiratory response to hypobaric hypoxia during sustained exposure to high altitude. - HIGHCARE

Role of the renin-angiotensin system in the cardiovascular, metabolic, neurologic and respiratory response to hypobaric hypoxia during sustained exposure to high altitude. - HIGHCARE

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-000540-14-IT
Enrollment
Unknown
Registered
2008-02-08
Start date
2008-05-20
Completion date
Unknown
Last updated
2014-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

This study is aimed at the investigation of adaptative physiological mechanisms at high altitude and not at the development of new therapeutic indications. MedDRA version: 9.1 Level: SOC Classification code 10007541 Term: Cardiac disorders

Interventions

Product Name: Telmisartan Pharmaceutical Form: Capsule, hard INN or Proposed INN: Telmisartan Concentration unit: mg milligram(s) Concentration type: equal Concentration number: 80- Pharmaceutical for

Sponsors

ISTITUTO AUXOLOGICO ITALIANO
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion criteria: Group A: ? male and female volunteers aged 20 to 65 years with high altitude climbing expertise (including professional climbers) ? informed consent to study procedures Group E ? male and female volunteers residing at low altitude aged 20 to 65 years ? informed consent to study procedures Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Exclusion criteria: ? chronic therapy with cardiovascular drugs, beta-mimetics and other drugs that may interfere with the physiological mechanisms under study or may be unsafe in high altitude conditions ? pregnancy ? repeated exposures to altitudes >3000 m a.s.l. in the 8 months preceding the expedition ? history of severe AMS forms including HAPE and HACE ? relevant chronic diseases (any chronic cardiovascular or renal disease, diseases that reduce functional capacity, infectious diseases) ? relevant diseases in the past (pneumothorax, major thoracic traumas, major surgical procedures etc.)

Design outcomes

Primary

MeasureTime frame
Main Objective: to study the effect of telmisartan on the cardiovascular, respiratory, neural and metabolic responses to high altitude hypobaric hypoxia;Secondary Objective: - to investigate the cardiovascular, neural, endocrine, metabolic, hematologic and molecular effects of hypobaric hypoxia at extreme altitude at various stages of adaptation - to evaluate the acute physiological effects of nonpharmacological interventions potentially useful for the treatment of acute mountain sickness, including continuous positive airway pressure (CPAP) and controlled slow breathing (SlowB) to explore the relationship between changes in biological parameters and changes in meteorological parameters such as temperature, humidity and UV radiation exposure. Aims of this subproject will also be to monitor/forecast weather and microclimatic variables near the ground at different altitude, and to predict the physical/physiological performance in those environments by the assessments of thermal balances during different physical activities.;Primary end point(s): changes in bloode pressure ,heart rate, respiratory rate, oxygen saturation and metabolic parameters

Countries

Italy

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026