Acclimatization of Healthy Subjects During a Stay at 3200 m

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02451020

Enrollment

Registered

2015-05-21

Start date

2015-06-08

Completion date

2015-08-09

Last updated

2018-10-30

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

Conditions

Effects of High Altitude

Keywords

healthy volunteers, acclimatization, sleep, hypoxia

Brief summary

The study evaluates respiratory acclimatization in healthy lowlanders staying for 3 weeks at 3200 m.

Detailed description

This study evaluates the effect of 3 weeks altitude acclimatization on sleep related breathing disturbances in healthy subjects staying at 3200 m. Participants living in Bishkek, Kyrgyzstan (700 m), will be transferred by car within 4 h to the Tuja Ashu high altitude clinic (3200 m). Outcomes will be assessed repeatedly during the stay at 3200 m.

Interventions

OTHERAltitude exposure

Participants will stay for 3 weeks at an altitude of 3200 m

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

BASIC_SCIENCE

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 75 Years

Healthy volunteers

Yes

Inclusion criteria

* Perfect health * Born, raised and currently living at low altitude (\<800m) * Informed consent.

Exclusion criteria

* Any acute or chronic disease * heavy smoking (\>20 cigarettes per day).

Design outcomes

Primary

Measure	Time frame	Description
Mean nocturnal oxygen saturation measured by pulse oximetry	night 7 at 3200 m	Difference in mean nocturnal oxygen saturation between night 1 and night 7

Secondary

Measure	Time frame	Description
Mean nocturnal oxygen saturation measured by pulse oximetry	night 1 at 3200 m	Difference in mean nocturnal oxygen saturation between night 1 at 3200 and night 1 at 700 m

Countries

Kyrgyzstan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026