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Immunological Consequences of Obstructive Sleep Apnea

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ClinicalTrials.gov Identifier: NCT00214071
Recruitment Status : Completed
First Posted : September 21, 2005
Last Update Posted : October 5, 2015
Sponsor:
Information provided by (Responsible Party):
University of Wisconsin, Madison

Study Description
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Brief Summary:

Obstructive sleep apnea (OSA) is a medical problem whose importance is increasing in recognition and awareness. OSA is associated with the development of hypertension and other cardiovascular diseases (1,2). OSA has pathophysiologic characteristics that are known to negatively impact immune function. Both sleep deprivation and hypoxia, hallmarks of OSA, impair immune responses (6,8,11). In addition, patients with OSA are frequently obese and obesity may be associated with increased chance of infections and immune impairment (14,15). Adipose cells are known to secrete cytokines and hormones that are involved in the immune response such as leptin, tumor necrosis factor alpha and interleukin-6 (16-19). Thus, it seems very likely that OSA may impact antigen-specific immune responses. Although it is known that characteristics of OSA impact immune function, it is not known what effects clinical OSA has on immunity.

The central hypothesis of this application is that that patients with obstructive sleep apnea will have attenuated cell-mediated and humoral immune responses to influenza vaccine compared to matched control subjects. Our hypothesis has been formulated on the basis that patients with OSA are sleep deprived and experience repeated hypoxemia that negatively impact both humoral and cell-mediated immune responses.


Condition or disease Intervention/treatment Phase
Obstructive Sleep Apnea Biological: Influenza vaccine Not Applicable

Study Design
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Study Type : Interventional  (Clinical Trial)
Enrollment : 30 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Official Title: Influence of Obstructive Sleep Apnea on Humoral and Cell-Mediated Vaccine Responses
Study Start Date : October 2004
Actual Primary Completion Date : June 2006
Actual Study Completion Date : June 2006

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Arms and Interventions
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Outcome Measures
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Primary Outcome Measures :
  1. The primary outcome variable will be mean lymphocyte interferon- ÿ (IFN- ÿ) production at 14 days (measured by ELISA)

Secondary Outcome Measures :
  1. Mean influenza antibody concentrations (pre- and post-immunization) with standard deviations will be calculated and compared between sleep apnea and control patients.

Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Absence of any immunocompromising diseases or medical conditions
  • Not taking any immune modifying medications or supplements
  • Significant obstructive sleep apnea as verified by complete overnight polysomnography with apnea-hypopnea index (AHI) > 15 events per hour (sleep apnea subjects)
  • Free of sleep disordered breathing verified by complete overnight polysomnography (AHI < 5 events per hour) or oximetry (< 5 desaturations per hour) (control subjects)

Exclusion Criteria:

  • Documented history of allergy to influenza vaccine or any of its components
Contacts and Locations
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To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00214071


Locations
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United States, Wisconsin
University of Wisconsin
Madison, Wisconsin, United States, 53719
Sponsors and Collaborators
University of Wisconsin, Madison
Investigators
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Principal Investigator: John M Dopp, PharmD University of Wisconsin, Madison
More Information
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Responsible Party: University of Wisconsin, Madison
ClinicalTrials.gov Identifier: NCT00214071    
Other Study ID Numbers: 2003-284
First Posted: September 21, 2005    Key Record Dates
Last Update Posted: October 5, 2015
Last Verified: August 2009
Additional relevant MeSH terms:
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Apnea
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Respiration Disorders
Respiratory Tract Diseases
 Signs and Symptoms, Respiratory
Sleep Disorders, Intrinsic
Dyssomnias
Sleep Wake Disorders
Nervous System Diseases