Patients With Pulmonary Hypertension or Interstitial Lung Disease at Altitude - Effect of Oxygen on Exercise Performance

Interstitial Lung Disease Clinical Trial

Official title: Patients With Pulmonary Hypertension or Interstitial Lung Disease Travelling to Altitude - Effect of Nocturnal Oxygen Therapy on Exercise Performance

Status Completed

Clinical Trial Summary

The purpose of this study is to investigate the effect of travelling to moderate altitude and of nocturnal oxygen therapy during a stay at moderate altitude on exercise performance of patients with pulmonary hypertension or with interstitial lung disease.

Clinical Trial Description

Patients with pulmonary hypertension or with interstitial lung disease living below 800 m will be invited to participate in a randomized, cross-over field trial evaluating the hypotheses that: a), exercise capacity during a 2 day sojourn at moderate altitude is reduced in comparison to low altitude; b), exercise capacity during a 2 day sojourn at moderate altitude is improved by nocturnal oxygen therapy compared to room air (sham oxygen) administered during nights at altitude. Outcomes will be assessed at low altitude (Zurich, 490 m, baseline), and during 2 study periods of 2 days each spent at moderate altitude (St. Moritz Salastrains, 2048 m), separated by a wash-out period of at least 2 weeks spent at low altitude (<800 m). The order of stays at the different altitudes and of the treatments will be randomized. ;

Related Conditions & MeSH terms

• Hypertension
• Hypertension, Pulmonary
• Interstitial Lung Disease
• Lung Diseases
• Lung Diseases, Interstitial
• Precapillary Pulmonary Hypertension

• NCT number: NCT02143687
• Study type: Interventional
• Source: University of Zurich
• Status: Completed
• Phase: Phase 4
• Start date: May 2014
• Completion date: October 2021