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Telemedicine Interventions for Obstructive Sleep Apnea (OSA)

This study has been completed.
Information provided by (Responsible Party):
VA Office of Research and Development Identifier:
First received: April 20, 2010
Last updated: July 7, 2016
Last verified: July 2016
This project is investigating whether both moderate-intensity physical activity and dietary weight loss will independently reduce sleep apnea symptoms and improve quality of life.

Condition Intervention Phase
Sleep Apnea
Behavioral: Physical activity
Behavioral: Diet
Behavioral: Health education
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Factorial Assignment
Masking: Single Blind (Outcomes Assessor)
Official Title: An RCT of Telemedicine Interventions for OSA

Resource links provided by NLM:

Further study details as provided by VA Office of Research and Development:

Primary Outcome Measures:
  • Sleep symptoms [ Time Frame: 6 months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Quality of life [ Time Frame: 6 months ] [ Designated as safety issue: No ]

Estimated Enrollment: 216
Study Start Date: October 2010
Study Completion Date: January 2016
Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Arm 1
Physical activity
Behavioral: Physical activity
Moderate-intensity physical activity
Experimental: Arm 2
Behavioral: Diet
Dietary weight loss
Active Comparator: Arm 3
Health education
Behavioral: Health education
Attention control intervention

Detailed Description:


Obstructive sleep apnea/hypopnea (OSAH) is a common chronic disease that is associated with daytime sleepiness, impaired health-related quality of life (QOL), and increased risk of hypertension and cardiovascular disease. The most common treatment is continuous positive airway pressure (CPAP), although adherence to CPAP is poor in more than one-third of patients. Weight loss can clearly lessen the severity of OSAH, but although short-term dietary weight loss can often be achieved it is difficult to maintain. Regular aerobic exercise is associated with a lower prevalence of OSAH in observational studies after adjustment for body habitus, and in two small clinical trials moderate exercise was associated with a substantial decrease in OSAH severity despite little or no weight loss. Demonstrating that dietary weight loss and moderate physical activity, promoted in the home setting, independently improve OSAH severity will have a major impact on the therapeutic approach to OSAH, a disease that is highly prevalent in the VA population.


The investigators hypothesize that both moderate-intensity physical activity and dietary weight loss will independently reduce OSAH severity and improve QOL.


The proposed study is a randomized clinical trial designed to test the independent effects of the physical activity and diet interventions, with an attention control intervention for subjects not assigned to either active intervention. Subjects will be male and female Veterans with a BMI over 24 kg/m2, with a physician diagnosis of OSAH and apnea-hypopnea index (AHI) >10/hr. The interventions will last six months.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Physician diagnosis of sleep apnea
  • Apnea-hypopnea index >10/hr
  • BMI over 24 kg/m2

Exclusion Criteria:

  • Angina pectoris
  • History of myocardial infarction within 6 months
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01108081

United States, Massachusetts
VA Boston Healthcare System Jamaica Plain Campus, Jamaica Plain, MA
Boston, Massachusetts, United States, 02130
Sponsors and Collaborators
VA Office of Research and Development
Principal Investigator: David William Sparrow, DSc VA Boston Healthcare System Jamaica Plain Campus, Jamaica Plain, MA
  More Information

Responsible Party: VA Office of Research and Development Identifier: NCT01108081     History of Changes
Other Study ID Numbers: IIR 09-063 
Study First Received: April 20, 2010
Last Updated: July 7, 2016
Health Authority: United States: Federal Government
Individual Participant Data  
Plan to Share IPD: Undecided

Keywords provided by VA Office of Research and Development:
Sleep apnea
Sleep symptoms
Quality of Life

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Respiration Disorders
Respiratory Tract Diseases
Signs and Symptoms, Respiratory
Signs and Symptoms
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases processed this record on January 14, 2017