Evaluation of the Prevention and Treatment Effects of Chinese Medicine on High Altitude Illness
Trial Snapshot
- Phase
- Phase 2
- Enrollment
- 240
- Locations
- 1
- Primary Endpoint
- The incidence of AMS will be measured by the Lake Louise Self Report (Lake Louise Score ≥4 with headache)
Study Overview
Brief Summary
This trial is aimed to evaluate the effects of "Wu Zhu Yu Tang" on the prevention of Acute Mountain Sickness(AMS).
Detailed Description
This study is a randomized, double blind, placebo-controlled clinical trial. It aims to demonstrate that (1) Chinese medicine prescription "Wu Zhu Yu Tang" can prevent Acute Mountain Sickness(AMS) (2) "Wu Zhu Yu Tang" can prevent AMS especially for Yang-Xu body constitution.
We will randomize 240 unacclimatized healthy adults. They will be randomized after stratification of the Yang-Xu score and the AMS history to receive Chinese medicine during one ascent and placebo during the other ascent. We will take them in Hehuan mountain for two days hike (24 hours) and an overnight over 3,000m. One month before the study, the subjects will fill the "Body Constitution Questionnaire BCQ" in order to evaluate their body constitution. Before, during and after the two days hike we will measure their blood pressure, heart rate and arterial oxygen saturation. The incidence of AMS will be measured by the Lake Louise Self Report (Lake Louise Score ≥4 with headache), we will also report the Lake Louise Clinical Assessment score and Lake Louise Functional Score.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Prevention
- Masking
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Eligibility Criteria
- Ages
- 20 Years to 70 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Healthy adults
Exclusion Criteria
- •Chronic disease: cardiovascular disease, psychological disease, anemia, migraine.
- •long-term use of the following materials: Chinese herbs, steroid, antibiotics.
- •altitude acclimation: have been to mountain over 2000m in the past 1 month.
- •Pregnancy.
Arms & Interventions
Chinese Medicine
The participators in this arm will take 2g (powder in capsule) of "Wu Zhu Yu Tang" or placebo orally three times in the first day and one time in the second day.
Intervention: Chinese Medicine (Drug)
Acetazolamide
If the participators have the history of AMS, he/she will be randomized to take "Wu Zhu Yu Tang" plus "placebo of Acetalozamide" or "Acetalozamide" plus "placebo of Wu Zhu Yu Tang".
Intervention: Chinese Medicine (Drug)
Acetazolamide
If the participators have the history of AMS, he/she will be randomized to take "Wu Zhu Yu Tang" plus "placebo of Acetalozamide" or "Acetalozamide" plus "placebo of Wu Zhu Yu Tang".
Intervention: Acetalozamide (Drug)
Outcomes
Primary Outcomes
The incidence of AMS will be measured by the Lake Louise Self Report (Lake Louise Score ≥4 with headache)
Time Frame: The Lake Louise Score will be measured in the noon of the second day after hiking to determine the onset of AMS.
The investigators will take the participators in Hehuan mountain for two days hike (24 hours) and an overnight over 3,000m. The Lake Louise score will measure before and after hiking.
Secondary Outcomes
- Blood pressure(Blood pressure will be measured before and after the hiking.)
- Heart rate(Heart rate will be measured before and after the hiking.)
- Arterial oxygen saturation(Arterial oxygen saturation will be measured before and after the hiking.)