Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D029424', 'term': 'Pulmonary Disease, Chronic Obstructive'}, {'id': 'D004646', 'term': 'Emphysema'}, {'id': 'D008171', 'term': 'Lung Diseases'}, {'id': 'D029481', 'term': 'Bronchitis, Chronic'}, {'id': 'D004417', 'term': 'Dyspnea'}], 'ancestors': [{'id': 'D008173', 'term': 'Lung Diseases, Obstructive'}, {'id': 'D012140', 'term': 'Respiratory Tract Diseases'}, {'id': 'D002908', 'term': 'Chronic Disease'}, {'id': 'D020969', 'term': 'Disease Attributes'}, {'id': 'D010335', 'term': 'Pathologic Processes'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}, {'id': 'D001991', 'term': 'Bronchitis'}, {'id': 'D012141', 'term': 'Respiratory Tract Infections'}, {'id': 'D007239', 'term': 'Infections'}, {'id': 'D001982', 'term': 'Bronchial Diseases'}, {'id': 'D012120', 'term': 'Respiration Disorders'}, {'id': 'D012818', 'term': 'Signs and Symptoms, Respiratory'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'phases': ['PHASE2'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'DOUBLE'}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'count': 38}}, 'statusModule': {'overallStatus': 'COMPLETED', 'startDateStruct': {'date': '2005-03'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2007-03', 'completionDateStruct': {'date': '2007-01', 'type': 'ACTUAL'}, 'lastUpdateSubmitDate': '2007-05-03', 'studyFirstSubmitDate': '2006-11-29', 'studyFirstSubmitQcDate': '2006-11-29', 'lastUpdatePostDateStruct': {'date': '2007-05-04', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2006-12-04', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Constant-load exercise tolerance after 6 weeks of exercise rehabilitation'}], 'secondaryOutcomes': [{'measure': 'Maximum oxygen consumption after 6 weeks of exercise rehabilitation'}, {'measure': 'Quality of Life measured after 6 weeks of exercise rehabilitation'}, {'measure': 'Dyspnea at an isotime during constant-load exercise after 6 weeks of exercise rehabilitation'}]}, 'conditionsModule': {'keywords': ['Exercise Tolerance', 'Dyspnea', 'Rehabilitation', 'Helium'], 'conditions': ['Chronic Obstructive Pulmonary Disease', 'COPD', 'Emphysema', 'Lung Diseases', 'Bronchitis, Chronic']}, 'referencesModule': {'references': [{'pmid': '16840742', 'type': 'BACKGROUND', 'citation': 'Eves ND, Petersen SR, Haykowsky MJ, Wong EY, Jones RL. Helium-hyperoxia, exercise, and respiratory mechanics in chronic obstructive pulmonary disease. Am J Respir Crit Care Med. 2006 Oct 1;174(7):763-71. doi: 10.1164/rccm.200509-1533OC. Epub 2006 Jul 13.'}, {'pmid': '19017883', 'type': 'DERIVED', 'citation': 'Eves ND, Sandmeyer LC, Wong EY, Jones LW, MacDonald GF, Ford GT, Petersen SR, Bibeau MD, Jones RL. Helium-hyperoxia: a novel intervention to improve the benefits of pulmonary rehabilitation for patients with COPD. Chest. 2009 Mar;135(3):609-618. doi: 10.1378/chest.08-1517. Epub 2008 Nov 18.'}]}, 'descriptionModule': {'briefSummary': 'The purpose of this study is to examine whether breathing helium-hyperoxia during exercise in a pulmonary rehabilitation program can improve the exercise tolerance and health related quality of life of patients with Chronic Obstructive Pulmonary Disease (COPD).', 'detailedDescription': 'It is well accepted that the exercise training as part of a comprehensive pulmonary rehabilitation program can improve exercise tolerance, functional status and quality of life in patients with COPD. It is feasible that if patients were able to perform a greater volume or intensity of exercise during rehabilitation then the outcomes of the program would be improved. Recent research has demonstrated that breathing a helium-hyperoxic gas mixture can significantly reduce dynamic hyperinflation and dyspnea during exercise in patients with COPD and can increase exercise tolerance to a greater extent than breathing room air or a nitrogen-based hyperoxic gas. If patients with COPD were to breathe a helium-hyperoxic gas during exercise they should be able to tolerate a greater intensity of exercise while maintaining similar levels of exertional symptoms to those observed at lower exercise intensities breathing room air. As a result patients randomized to the helium-hyperoxia condition should obtain greater improvements in exercise tolerance than those receiving usual care (i.e. breathing room air)\n\nComparisons: Standard pulmonary rehabilitation of patients with COPD receiving either usual care (air breathing) or helium-hyperoxia (40% O2, 60% Helium).'}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'healthyVolunteers': False, 'eligibilityCriteria': 'Inclusion Criteria:\n\n* FEV1/FVC\\<70% predicted;\n* FEV1\\<70% predicted;\n* RV\\>140% predicted.\n\nExclusion Criteria:\n\n* Cardiovascular contraindications to exercise;\n* Musculoskeletal abnormalities that limit exercise tolerance;\n* SpO2\\<85% during a constant work rate test;\n* On supplemental oxygen.\n* Exacerbation within the last month'}, 'identificationModule': {'nctId': 'NCT00406705', 'briefTitle': 'The Effect of Breathing Helium-Hyperoxia During Pulmonary Rehabilitation in Patients With COPD', 'organization': {'class': 'OTHER', 'fullName': 'University of Alberta'}, 'officialTitle': 'A Randomized Controlled Trial to Study the Effect of Exercise Training Breathing Helium-Hyperoxia on The Exercise Tolerance and Quality of Life of Patients With Chronic Obstructive Pulmonary Disease', 'orgStudyIdInfo': {'id': 'MSI 824'}}, 'armsInterventionsModule': {'interventions': [{'name': 'Helium-Hyperoxia', 'type': 'BEHAVIORAL'}]}, 'contactsLocationsModule': {'locations': [{'zip': 'T5K 0L4', 'city': 'Edmonton', 'state': 'Alberta', 'country': 'Canada', 'facility': 'Caritas Centre for Lung Health', 'geoPoint': {'lat': 53.55014, 'lon': -113.46871}}], 'overallOfficials': [{'name': 'Neil D Eves, PhD', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'University of Calgary, AB, Canada'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'University of Alberta', 'class': 'OTHER'}}}}