CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 25 enrolled
Drug / intervention
Not specified
Likely dose
Not stated in record
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Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT00685438
NCT00685438N/ACompleted

Observational Study of Skin Erythema by Spectrophotometer, and UV Exposure With Viospore Ultraviolet Monitors at Extreme Altitude (Mt. Everest, North Side)

Sunnybrook Health Sciences Centre·observational·Posted May 28, 2008·Updated May 28, 2008

In Brief

An observational study for Altitude and 4 related conditions. Completed, enrolled 25 participants across 1 site.

Detailed Summary

With the increasing tourism and adventure travel into extreme environments comes the need to reassess the required protection against ultraviolet (UV) radiation and possible other oxidative stresses. This is an observational study of UV radiation exposure and skin erythema while at extreme altitude (Mt. Everest). In addition to UV exposure, skin erythema, antioxidant use (such as vitamins C and E) will be measured. Hypothesis: 1. UV radiation at extreme altitude has larger effects on the skin than at sea level; therefore requiring an adjustment of the antioxidant use for adequate protection. 2. The skin is an accurate reflection of UV and oxidative stress exposure 3. The efficacy of oxidatives stress is reflective of the ethnicity of the individual.

Study Details

Study Typeobservational
Allocation--
Masking--
Primary Purpose--
CountriesNepal

Timeline

N/ACompletedFinished
200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedMay 28, 2008
Enrollment StartApr 1, 2007
Study CompletionJun 1, 2007
TodayJul 2, 2026
Posted 18.1 years ago