Quality of Life Clinical Trial
Official title:
Impact of Positive Airway Pressure Therapy on Clinical Outcomes in Older Veterans With Chronic Obstructive Pulmonary Disease and Comorbid Obstructive Sleep Apnea (Overlap Syndrome)
Obstructive sleep apnea (OSA) and Chronic Obstructive Pulmonary Disease (COPD) are highly prevalent chronic respiratory diseases in the Veteran population. OSA co-occurring with COPD, known as Overlap Syndrome (OVS), is a complex chronic medical condition associated with grave consequences. OVS is highly prevalent in Veterans. Veterans with OVS may be at increased risk for cognitive deficits, poor sleep quality as well as a reduced quality of life (QoL). The overall objective is to study the effects of positive airway pressure therapy on clinical outcomes in patients with OVS.
Status | Recruiting |
Enrollment | 250 |
Est. completion date | December 31, 2025 |
Est. primary completion date | December 29, 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 60 Years and older |
Eligibility | Inclusion Criteria: - OSA with moderate-to-severe disease, AHI 20 per hour by in-lab polysomnography with concomitant moderate-severe COPD based on pulmonary function tests (PFTS) and with past significant history (>10 pack-years) of smoking - Male or female gender - Age greater than or equal to 60 years - Stable treatment regimen for COPD Exclusion Criteria: - Current or prior treatment with PAP or oral appliance - Central sleep apnea defined as central apnea index >5 per hour and comprising 50% of AHI - Known primary neuromuscular diseases - Disorders that may impact cognitive function including: - neurodegenerative disorders - traumatic brain injury - untreated PTSD and/or history of learning disability - Medicines that may cause or alter sleepiness: sedative hypnotics, or stimulants as these may alter the results - Patient is actively suicidal due to depression, unstable mental health condition - Epworth sleepiness score >16 (severe sleepiness) or a near-miss or prior automobile accident due to sleepiness within the past 12 months - Narcolepsy is the primary sleep disorder, with requirement of stimulant medications - Employed as a commercial driver or operating heavy machinery - On long-term oxygen therapy prior to start of study, more than 12 hr/day - Patients is unable to use either a nasal or face mask (e.g., facial trauma, claustrophobia) - Consumption of >3 alcoholic beverages per day or current use of some illicit drugs, as these may contribute to cognitive deficits - Patients who cannot give informed consent - Patients receiving hospice care - Pregnant women due to unknown risks |
Country | Name | City | State |
---|---|---|---|
United States | VA Ann Arbor Healthcare System, Ann Arbor, MI | Ann Arbor | Michigan |
United States | John D. Dingell VA Medical Center, Detroit, MI | Detroit | Michigan |
Lead Sponsor | Collaborator |
---|---|
VA Office of Research and Development |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Neurocognitive function Trails A and Trails B | Trails A and Trails B test will be administered to evaluate attention and psychomotor function. This score is adjusted for age, race, gender, and years of education. Scored on a Standard scale of 100 +/- 15 for normal ranges, above 115 is above average, below 85 is considered below average. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function PASAT | PASAT (Paced Auditory Serial Addition Test) will be administered to evaluate vigilance and executive function. The PASAT is recorded as the total number of correct responses (from 0-60), or the percent of correct responses out of 60 (from 0-100), where a higher value is a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function Stroop color-word interference | Stroop color-word interference test will be administered to evaluate executive function. This score is adjusted for age, and years of education. Scored on a Standard scale of 100 +/- 15 for normal ranges, above 115 is above average, below 85 is considered below average. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function DIGIT | DIGIT test will be administered to evaluate short-term and working memory. This score is adjusted for age. Scored on a Standard scale of 100 +/- 15 for normal ranges, above 115 is above average, below 85 is considered below average. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function WASI | Abbreviated Wechsler Abbreviated Scale of Intelligence (WASI) will be administered to evaluate verbal comprehension and working memory. This score is adjusted for age. Scored on a Standard scale of 100 +/- 15 for normal ranges, above 115 is above average, below 85 is considered below average. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function WMS | Wechsler Memory test (WMS) will be administered to measure Verbal comprehension, and working and visual memory. Scored on a Standard scale of 100 +/- 15, where a higher score is a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function PVT | Psychomotor Vigilance Test (PVT) will be administered to measure Alertness and vigilance, in terms of number of lapses and reaction time. The performance score ranges from 0-100, where a higher value is a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Neurocognitive function HVLT-R | Hopkins Verbal Learning Test - Revised (HVLT-R) will be administered to evaluate Verbal learning and memory. Scored on a Standard scale of 100 +/- 15, where a higher score is a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Sleepiness ESS | Epworth sleepiness scale (ESS) score will be measured. This score is on a scale of 0-24, where a higher value indicates greater degree of sleepiness. | Change from baseline at 3 and 6 months | |
Primary | Sleep quality PSQI | Pittsburgh Sleep Quality Index (PSQI) is a detailed assessment of subject sleep quality over the most recent month by considering seven "component" scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction. The sum of scores for these seven components yields one global score to assess sleep quality on a scale of "poor" to "good". | Change from baseline at 3 and 6 months | |
Primary | Quality of life SF-36v2 | QoL will be assessed using the survey SF-36v2 Health survey. Thirty-five of the SF-36v2 items are used to measure eight domains of health-related quality of life. These are on a scale of 0-100, where higher values indicate a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Quality of life FOSQ | Disease specific QoL will be assessed using the Functional Outcomes of Sleep Questionnaire FOSQ/(FOSQ). There are 5 subscale domains of the FOSQ (General Productivity, Social Outcome, Activity Level, Vigilance, and Intimate Relationships and Sexual Activity). There all range from 0-20, where a higher value is a better outcome. The total FOSQ is the sum of these subscale domains and ranges from 0-100, where a higher value is a better outcome. | Change from baseline at 3 and 6 months | |
Primary | Quality of life SGRQ | Disease specific QoL will be assessed using the St. George's Respiratory Questionnaire (SGRQ). The SGRQ has three subscale domains (Symptoms, Activity, and Impacts), which range from 0-100, where a higher value indicates a worse outcome. The total SGRQ is the average of these subscale domains and is on a scale of 0-100, where a higher value is a worse outcome. | Change from baseline at 3 and 6 months | |
Secondary | Hours of nightly positive airway pressure (PAP) use | Collection of PAP adherence data from the smart card of the PAP machine or from online data. | Change from baseline at 3 and 6 months | |
Secondary | Patient preferance for type of PAP (PAP arm) | A visual analog scale to determine preference to CPAP vs NIPPV therapy. A scores will range from -10 to +10, where a higher score is better. | at 3 and 6 months | |
Secondary | Fatigue severity | Fatigue Severity Scale (FSS): FSS measures how fatigue affects motivation, exercise, physical functioning, carrying out duties, interfering with work, family, or social life. Where a higher value is a worse outcome. | Change from baseline at 3 and 6 months | |
Secondary | Sleep-dependent memory | In a subgroup of patients, the investigators will perform Word-pair test and PVT before and after sleep period, this is an exploratory measure. | At baseline and at 3 months | |
Secondary | Blood CO2 or bicarbonate level | Test is being done to evaluate for presence or absence of hypercapnia | At baseline and at 6 months |
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