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The POSAtive Study: Study for the Treatment of Positional Obstructive Sleep Apnea

A Prospective, Randomized, Crossover Study of the NightBalance Sleep Position Trainer (SPT) Compared to Automatic Adjusting Positive Airway Pressure (APAP) for the Treatment of Positional Obstructive Sleep Apnea (POSA)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03061071
Enrollment
117
Registered
2017-02-23
Start date
2017-03-01
Completion date
2018-07-12
Last updated
2018-08-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep Apnea Syndromes

Keywords

Positional Sleep Apnea, Positional Obstructive Sleep Apnea, POSA, OSA, Obstructive Sleep Apnea, Sleep Apnea

Brief summary

This study is a prospective, multi-center, randomized crossover of the NightBalance SPT compared to APAP for the treatment of Positional Obstructive Sleep Apnea (POSA).

Detailed description

This study is a prospective, multi-center, randomized crossover of the NightBalance SPT compared to APAP for the treatment of POSA. The Primary Objective of the study is to demonstrate non-inferiority of treatment with the SPT as compared to APAP.

Interventions

Subject to sleep with the SPT for a 6 week home use period followed by in-lab PSG.

DEVICEAutomated Adjusting Positive Airway Pressure (APAP)

Subject to sleep with the APAP for a 6 week home use period followed by in-lab PSG.

Sponsors

NightBalance
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

The technician scoring the polysomnograms will be unaware of previous PSG results from the patient to the best of their ability (ie: will not look back in their records for the purpose of reviewing their previous PSGs prior to scoring).

Intervention model description

6 week crossover study, randomized to order of treatment

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Subject is between the ages of 20 and 80. 2. Diagnosis of POSA meeting all the following criteria per in-lab control PSG (performed within 3 months of screening): * Total AHI \>15, or AHI \>10 and \<15 with ESS \>10 * Supine AHI at least twice the non-supine AHI * Non-supine AHI \<10 (\<5 in mild patients) * Supine time \>40% and \<60% 3. Subject understands the study protocol and is willing and able to comply with study requirements and sign informed consent.

Exclusion criteria

1. Prior surgery to treat OSA (such as UPPP), or prior or current therapy or treatment for OSA, with the exception of PAP being used for split night PSG only. 2. A female of child-bearing potential that is pregnant or intends to become pregnant. 3. Any unstable or severe medical condition of any organ system including congestive heart failure, COPD, renal failure, neuromuscular disease, or at the discretion of the site Principal Investigator (PI). 4. Taking medication that may affect sleep, sleepiness, or alertness including hypnotics, sedatives, alerting agents, stimulants, opiates, sedating antidepressants, and anticonvulsants. 5. Oxygen use. 6. The presence of any other sleep disorder (central sleep apnea (CSA \>5), periodic limb movement disorder (PLMAI \>15), clinical diagnosis of insomnia or narcolepsy). 7. Excessive alcohol consumption (\>21 drinks/week). 8. The use of any illegal drug(s). 9. Night or rotating shift work. 10. Severe claustrophobia. 11. Shoulder, neck, or back complaints that restrict sleeping position. 12. Subject requires use of more than 2 pillows under the head while sleeping or sleeps in a bed/chair with raised upper body position.

Design outcomes

Primary

MeasureTime frameDescription
Apnea-Hypopnea Index (AHI, events/hr)6 weekNon-inferiority of SPT vs. APAP (measured by events/hr during in lab polysomnography)
Adherence (minutes of device use per night)6 weekNon-inferiority of SPT vs. APAP (calculated by number of minutes of objective device use per night)

Secondary

MeasureTime frameDescription
Patient Satisfaction (Comfort, Satisfaction) assessed by Visual Analog Scale (VAS)6 weekSPT vs. APAP
Oxygen Desaturation Index (3%)6 weekSPT vs. APAP
Total Sleep Time (minutes)6 weekSPT vs. APAP (measured by in lab polysomnography)
Sleep Onset Latency (minutes)6 weekSPT vs. APAP (measured by in lab polysomnography)
Sleep Efficiency (%)6 weekSPT vs. APAP (measured by in lab polysomnography)
Arousal Index6 weekSPT vs. APAP (measured by in lab polysomnography)
Sleep Stages (%)6 weekSPT vs. APAP (measured by in lab polysomnography)
Sleep Position (%)6 weekSPT vs. APAP (measured by in lab polysomnography)
Epworth Sleepiness Scale (ESS)6 weekSPT vs. APAP
Functional Outcomes of Sleep Questionnaire (FOSQ)6 weekSPT vs. APAP
SF-366 weekSPT vs. APAP
Mean Disease Alleviation (MDA) (%)6 weeksSPT vs. APAP (MDA (%) is calculated by the product of the objective adherence (from SPT and APAP download), adjusted for total sleep time (X-axis), combined with therapeutic efficacy (AHI from the respective treatment night, Y-axis), divided by 100.)
Adverse Events6 weeksSPT vs. APAP, frequency, seriousness, severity and device relationship will be summarized.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026