Clinical Trials Logo

Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT01865864
Other study ID # 07-057
Secondary ID
Status Terminated
Phase N/A
First received December 26, 2008
Last updated May 28, 2013
Start date July 2008
Est. completion date November 2008

Study information

Verified date May 2013
Source Northwell Health
Contact n/a
Is FDA regulated No
Health authority United States: Institutional Review Board
Study type Observational

Clinical Trial Summary

to test whether using CPAP can restore the normal pattern of drop of blood pressure during sleep.


Description:

OBJECTIVE:

To investigate the effect of CPAP therapy on the restoration of the normal diurnal blood pressure pattern. Possible improvement of the circadian dipper pattern after CPAP therapy, with or without a decrease in the mean blood pressure, might constitute an additional potential benefit of CPAP therapy in reducing cardiovascular risk in patients with OSA.

STUDY DESIGN AND METHODS:

Patients diagnosed with OSA at the sleep center will undergo blood pressure monitoring by measuring the blood pressure every half hour during sleep study. Patients with normal circadian BP changes are treated with CPAP as indicated. Patients with non-dipping BP pattern will be approach to join our study. The patients will receive CPAP therapy. The trial period will be 6 weeks. At the end of the trial, the patients from both treatment arms will undergo a second BP monitoring according to our above-mentioned protocol (systolic, diastolic and mean BP) to determine the circadian BP changes. Apnea-Hypopnea index will be calculated to reflect on the compliance with our therapy. Thus, patients could be divided into two study groups according to their objective compliance.

Baseline population characteristics between the placebo group and CPAP group will be noted. These include apnea-hypopnea index (AHI), medications, other co morbidities and other factors that might affect the normal circadian BP dipping pattern including factors affecting the volume status i.e. diabetes, renal failure, uncontrolled diabetes. Any new medications added during the 6 weeks trial period will be noted.

STATISTICAL ANALYSIS:

The difference in daytime and nighttime BP pattern will be noted between the treated (CPAP) and the non-compliant groups. The circadian BP variation will be recorded in both groups. Changes in the circadian BP pattern will be assessed on an intention-to-treat basis. The odds ratio, p value and confidence interval will be calculated. Correlation between the dipping/non-dipping pattern with CPAP compliance, severity of OSA and number of antihypertensive drugs will be studied as well


Recruitment information / eligibility

Status Terminated
Enrollment 2
Est. completion date November 2008
Est. primary completion date November 2008
Accepts healthy volunteers No
Gender Both
Age group 18 Years and older
Eligibility Inclusion Criteria:

1. All patients with OSA who don't meet the above mentioned exclusion criteria

Exclusion Criteria:

1. Patients who have a normal diurnal sleep pattern (i.e. decrease of more than 30% of the systolic BP at night time)

2. Patients who are on three or more antihypertensives whose blood pressure is not controlled.

3. Patients previously treated with CPAP therapy within the past 3 months

Study Design

Observational Model: Cohort, Time Perspective: Prospective


Locations

Country Name City State
United States Heart Tower Staten Island New York

Sponsors (2)

Lead Sponsor Collaborator
Northwell Health Staten Island University Hospital

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary drop of Blood pressure at night 6 weeks No
See also
  Status Clinical Trial Phase
Recruiting NCT05857384 - Bioavailability, Bioequivalence and Tolerability of IHL-42X Compared to the Reference Drugs Phase 1
Recruiting NCT04547543 - Follow-up of Apneic Patients by Visio-consultation N/A
Recruiting NCT05371509 - Novel Myofunctional Water Bottle to Reduce OSA and Snoring Study N/A
Completed NCT02515357 - Mediterranean Diet/Lifestyle Intervention in Obstructive Sleep Apnea N/A
Completed NCT05582070 - Effect on Sleep of Surgical Treatment of Severe Nasal Obstruction N/A
Active, not recruiting NCT03189173 - Combined Upper-airway and Breathing Control Therapies for Obstructive Sleep Apnea Phase 2
Completed NCT04084899 - The Effect of CPAP on Lung Hyperinflation in Patients With OSA
Completed NCT03032029 - Registry on the Treatment of Central and Complex Sleep-Disordered Breathing With Adaptive Servo-Ventilation
Recruiting NCT04028011 - Clinical Evaluation of a Wearable Technology for the Diagnosis of Sleep Apnoea
Recruiting NCT06047353 - Community Health Advocates for Motivating PAP Use in Our Neighborhoods. N/A
Completed NCT05253963 - Acute Effect of CPAP on Weight in Patients With Obstructive Sleep Apnea N/A
Recruiting NCT06029959 - Stroke and CPAP Outcome Study 3 N/A
Recruiting NCT06150352 - Sleep Apnea, Neurocognitive Decline and Brain Imaging in Patients With Subjective or Mild Cognitive Impairment
Completed NCT03589417 - Postural Stability, Balance and Fall Risk in Patients With Obstructive Sleep Apnea
Recruiting NCT04335994 - ENhancing Outcomes in Cognitive Impairment Through Use of Home Sleep ApNea Testing N/A
Withdrawn NCT04063436 - Evaluation of a New Nasal Pillows Mask for the Treatment of Obstructive Sleep Apnea N/A
Recruiting NCT05385302 - Sociological Determinants of Positive Airway Pressure Adherence in OSA Patients
Recruiting NCT04572269 - Metabolomics of Obstructive Sleep Apnea
Not yet recruiting NCT06467682 - 12-week Tele-exercise Program in Patients With OSA N/A
Withdrawn NCT04011358 - Retinal Vein Occlusion and Obstructive Sleep Apnea: A Case Control Study N/A