Lifestyle Intervention for OSA in Adults
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ClinicalTrials.gov Identifier: NCT03851653 |
Recruitment Status :
Completed
First Posted : February 22, 2019
Last Update Posted : January 12, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Obstructive Sleep Apnea | Behavioral: Lifestyle Intervention | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 89 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Lifestyle Intervention for Obstructive Sleep Apnoea in Adults: A Randomized Controlled Trial |
Actual Study Start Date : | April 1, 2019 |
Actual Primary Completion Date : | October 13, 2020 |
Actual Study Completion Date : | November 30, 2020 |

Arm | Intervention/treatment |
---|---|
Experimental: Lifestyle Intervention Group (LIG)
Participants from this group will receive a cognitive-behavioral intervention addressing weight loss and lifestyle habits such as hypocaloric diet, moderate exercise, smoking and alcohol avoidance, and sleep hygiene. This behavioral intervention will be combined with the usual treatment for OSA, i.e. CPAP.
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Behavioral: Lifestyle Intervention
Cognitive-behavioural intervention for weight loss and lifestyle change |
No Intervention: Control group
Participants from the control group will not receive any type of intervention apart from the usual care (CPAP).
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- Change in apnoea-hypopnoea index (AHI) from baseline to post-intervention. [ Time Frame: Post-intervention (2 months) ]Change in apnoea (airflow reduction greater than or equal to 90%) and hypopnoea (airflow reduction greater than or equal to 30%) episodes per hour of sleep, from baseline to post-intervention.
- Change in oxygen desaturation index (ODI) from baseline to post-intervention. [ Time Frame: Post-intervention (2 months) ]Change in the number of oxygen desaturations greater than or equal to 4%/h from baseline to post-intervention.
- Change in oxygen saturation (SaO2) mean from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the average of oxygen saturation from baseline to post-intervention
- Change in oxygen saturation (SaO2) nadir from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Minimum oxygen saturation from baseline to post-intervention
- Change in sleep efficiency from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the total sleep time/total time in bed from baseline to post-intervention
- Change in light sleep (N1 and N2 stages) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the percentage of light sleep (N1 and N2 stages) from baseline to post-intervention
- Change in deep sleep (N3 stage) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the percentage of deep sleep (N3 stage) from baseline to post-intervention
- Change in rapid eye movement (REM) sleep from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the percentage of REM sleep from baseline to post-intervention
- Change in apnoea-hypopnoea index (AHI) in REM sleep from baseline to post-intervention. [ Time Frame: Post-intervention (2 months) ]Change in apnoea-hypopnoea index (AHI) in REM sleep from baseline to post-intervention.
- Change in apnoea-hypopnoea index (AHI) in NREM sleep from baseline to post-intervention. [ Time Frame: Post-intervention (2 months) ]Change in apnoea-hypopnoea index (AHI) in NREM sleep from baseline to post-intervention.
- Change in excessive daytime sleepiness (EDS) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in the difficulty in maintaining a desired level of wakefulness, measured by the Epworth sleepiness scale (ESS) from baseline to post-intervention. ESS is a 4-point scale (0 = no chance of dozing, 1 = slight chance of dozing, 2 = moderate chance of dozing, 3 = high chance of dozing) that measures the usual chances of dozing off or falling asleep while engaged in eight different activities. An ESS total score from 0 to 9 is considered to be normal while an ESS total score > 9 indicates high daytime sleepiness.
- Change in Pittsburgh Sleep Quality Index (PSQI) from baseline to post-intervention. [ Time Frame: Post-intervention (2 months) ]Change in Pittsburgh Sleep Quality Index (PSQI) from baseline to post-intervention. This scale includes a total of 19 self-rated items combined to form seven component scores i.e., subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction), each of which has a range of 0-3 points. The sum of these seven PSQI component scores is considered to obtain a global PSQI score (ranging from 0-21), with higher scores indicating poorer sleep quality.
- Change in Wake After Sleep Onset (WASO) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in Wake After Sleep Onset (WASO; minutes) from baseline to post-intervention
- Change in body weight (kg) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in body weight (kg) from baseline to post-intervention
- Change in fat mass (kg) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in fat mass (kg) from baseline to post-intervention
- Change in mean blood pressure (mm HG) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in mean blood pressure (mm HG) from baseline to post-intervention
- Change in plasma glucose (mg/dL) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in plasma glucose (mg/dL) from baseline to post-intervention
- Change in total cholesterol (mg/dL) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in total cholesterol (mg/dL) from baseline to post-intervention
- Change in total triglycerides (mg/dL) from baseline to post-intervention [ Time Frame: Post-intervention (2 months) ]Change in total triglycerides (mg/dL) from baseline to post-intervention

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Previous clinical diagnosis of moderate/severe OSA (AHI > 15) by a healthcare professional.
- Male patients aged between 18-65 years.
- Body mass index > 25 kg/m2.
- Use of CPAP
- Motivation to participate in the study.
- Signed informed consent form.
Exclusion Criteria:
- Sleep disorder other than OSA
- Clinically significant psychiatric, neurological, or medical disorders other than OSA
- Use of prescription drugs or clinically significant drugs affecting sleep

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): NCT03851653
Spain | |
University of Granada | |
Granada, Spain, 18011 |
Study Director: | Gualberto Buela-Casal, PhD | Universidad de Granada | |
Study Director: | Jonatan R. Ruiz, PhD | Universidad de Granada | |
Principal Investigator: | Almudena Carneiro-Barrera, MD | Universidad de Granada |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Almudena Carneiro Barrera, Teaching and Research Academic Staff, Universidad de Granada |
ClinicalTrials.gov Identifier: | NCT03851653 |
Other Study ID Numbers: |
INTERAPNEA-2019 |
First Posted: | February 22, 2019 Key Record Dates |
Last Update Posted: | January 12, 2021 |
Last Verified: | January 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | All individual participant data (IPD) that underlie results in a publication |
Time Frame: | After publication |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
obstructive sleep apnea weight loss lifestyle intervention |
continuous positive airway pressure OSA CPAP |
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 |