Loading clinical trials...

HighCycle Study: Effect of High Altitude on Acute Mountain Sickness in Women Related to Their Menstrual Cycle Phase | Clinical Trials | Clareo Health

RECRUITING

HighCycle Study: Effect of High Altitude on Acute Mountain Sickness in Women Related to Their Menstrual Cycle Phase

HighCycle Study: Effect of High Altitude on Acute Mountain Sickness in Women Related to Their Menstrual Cycle Phase: A Prospective Cohort Study at 3600 m

NCT06499714•University of Zurich

View on ClinicalTrials.gov

Summary

Prospective cohort study investigating the menstrual cycle phase (MCP)-dependent incidence of acute mountain sickness (AMS) in women travelling to 3600 m.

Eligibility

Age

18 - 44 years

Sex

FEMALE

Healthy Volunteers

Yes

Inclusion Criteria

•Healthy, non-smoking women, age 18-44 years, without any disease and need of regular medication (including oral contraceptives).
•BMI \>18 kg/m2 and \<30 kg/m2
•Born, raised and currently living at altitudes \<1000 m
•Written informed consent
•Premenopausal, eumenorrheic cycle

Exclusion Criteria

•Other types of contraceptives (hormonal intrauterine device, vaginal ring, subcutaneous injections or implants, among others)
•Pregnancy or nursing
•Anaemic (haemoglobin concentration \<10g/dl)
•Any altitude trip \<4 weks before the study
•Allergy to acetazolamide and other sulfonamides

Locations (1)

National Center for Cardiology and Internal Medicine

Bishkek, Gorod Bishkek, Kyrgyzstan

Key Dates

Start Date

July 15, 2024

Primary Completion Date

December 31, 2025

Completion Date

December 31, 2025

Last Updated

June 13, 2025

Enrollment

ESTIMATED participants

Conditions

Acute Mountain Sickness

Interventions

Exposure to 3600 m

OTHER

Contacts

Michael Furian, Prof. Dr.

CONTACT

+41794037586 michael.furian@usz.ch

Talant Sooronbaev, Prof. Dr.

CONTACT

+996772574567 sooronbaev@yahoo.ru

Prochlorperazine Maleate Versus Placebo for the Prophylaxis of Acute Mountain Sickness

NCT06450899

Acute Mountain Sickness

View study

COMPLETEDPHASE3

Safety and Efficacy of T89 in the Prevention and Treatment of Adults With Acute Mountain Sickness (AMS)

NCT04993729

Acute Mountain Sickness (AMS)

View study

COMPLETED

Risk Factors Associated With High Altitude Sickness: A Case-Control Study

NCT06039475

Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: June 13, 2025Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

View ClinicalTrials.gov Terms and Conditions

HighCycle Study: Effect of High Altitude on Acute Mountain Sickness in Women Related to Their Menstrual Cycle Phase

Inclusion Criteria

Exclusion Criteria

Prochlorperazine Maleate Versus Placebo for the Prophylaxis of Acute Mountain Sickness

Safety and Efficacy of T89 in the Prevention and Treatment of Adults With Acute Mountain Sickness (AMS)

Risk Factors Associated With High Altitude Sickness: A Case-Control Study

Efficacy of Prophylactic Treatment of Oral Prochlorperazine for Acute Mountain Sickness

Alternative Treatments in Acute Mountain Sickness

Sickness Evaluation at Altitude With Acetazolamide at Relative Doses