- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00777985
Preventive Effects of Bosentan on the Systemic Cardiovascular Consequence of Sleep Apnea (BOSAS)
Cardiovascular Consequences of Obstructive Sleep Apnea (OSA): Role of Endothelin and Preventive Effects of Bosentan
The study will compared the effects of bosentan, an endothelin receptor antagonist, and nasal continuous positive airway pressure (nCPAP), obstructive sleep apnea current reference treatment, on diastolic blood pressure in untreated mildly hypertensive sleep apnea patients.
The hypothesis is that blocking endothelin receptors with a drug will have the same systemic blood pressure lowering effect than nCPAP in sleep apnea patients.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
-
Grenoble, France, 38043
- CHU de Grenoble
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Documented obstructive sleep apnea
- with untreated mild systemic hypertension
Exclusion Criteria:
- pregnancy or lactation
- daytime alveolar hypoventilation
- severe arterial hypertension (systolic pressure > 180 mmHg; diastolic pressure > 110 mmHg)
- treatment with anti-hypertensive drugs
- cardiovascular disorder other than mild hypertension
- severe daytime sleepiness (score on the EPWORTH sleepiness scale ≥15) or at-risk occupation
- contra-indication to nCPAP treatment
- known allergy to bosentan
- active treatment with a drug whose efficacy is reduced by cytochromes P450, 2C9, 3A4 and2C19 isoenzyme activation
- active treatment with a drug acting on systemic arterial blood pressure or endothelial function
- liver or kidney dysfunction
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: CROSSOVER
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
ACTIVE_COMPARATOR: 2
|
Daily application throughout sleep for 4 weeks
|
EXPERIMENTAL: 1
|
62.5 mg b.i.d for 4 weeks
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
24 hour mean diastolic blood pressure
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Peripheral Arterial Tonometry measure
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
mean 24 hour systemic systolic blood pressure
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
mean 24 hour nocturnal blood pressure
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
carotid Intima Media Thickness
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
Circulating inflammation markers (RANTES, MCP-1, TNF-alpha, INF-gamma, IL-6, IL-10 and TGF-gamma
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
Circulating Big ET1 and ET1 levels
Time Frame: before and after each treatment completion (4 weeks)
|
before and after each treatment completion (4 weeks)
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Sandrine H Launois, MD PhD, University Hospital, Grenoble
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Nervous System Diseases
- Respiratory Tract Diseases
- Respiration Disorders
- Sleep Disorders, Intrinsic
- Dyssomnias
- Sleep Wake Disorders
- Signs and Symptoms, Respiratory
- Sleep Apnea Syndromes
- Sleep Apnea, Obstructive
- Apnea
- Molecular Mechanisms of Pharmacological Action
- Antihypertensive Agents
- Endothelin Receptor Antagonists
- Bosentan
Other Study ID Numbers
- 0722
- 2007-005333-11 (REGISTRY: EudraCT number)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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