Skip to content

KPAP vs EPR for Comfort

A Randomized Crossover Study of Subjective Comfort With At-Home Auto-Titrating Positive Airway Pressure (APAP): Kairos PAP (KPAP) Versus Expiratory Pressure Relief (EPR)

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07530510
Enrollment
24
Registered
2026-04-15
Start date
2026-06-01
Completion date
2026-12-31
Last updated
2026-04-15

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

Conditions

Obstructive Sleep Apnea

Brief summary

The KPAP EPR Home is a randomized, crossover study in which subjective comfort will be compared between SleepRes APAP + KPAP and ResMed APAP + EPR. Participants will be individuals with newly diagnosed OSA who have not previously tried any PAP treatment (PAP-naïve). Upon signing an informed consent, participants will be randomized to receiving either APAP + KPAP (delivered by a SleepRes device) or APAP + EPR (delivered by a ResMed device) for home use. Participants will be asked to use the devices (in the order of randomization) for 4 days each, with 3 days of washout in between. Participants will be blinded to the sequence order, even though they will receive machines that are not identical at each treatment. The KPAP drop will be set to the maximum level (i.e., 5 cmH2O), while EPR will be set on 3. APAP will be set on the full pressure range (i.e., 5-20 cmH2O). After each period, each individual will be asked to rate their device preference according to a 10-point visual analog (VAS) scale (i.e., 1=extremely uncomfortable treatment; 10=extremely comfortable treatment). After usage, the devices will be returned to the office and device data will be downloaded.

Interventions

A SleepRes device will deliver auto-adjusting positive airway pressure (APAP) + Kairos PAP at the maximum drop (1, 2, 3, 4, 5 cmH2O at background pressures of 6, 7, 8, 9, 10 cmH2O, respectively)

A ResMed device will deliver auto-adjusting positive airway pressure (APAP) + Expiratory Pressure Relief set on level 3

Sponsors

SleepRes Inc.
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* BMI above 18 kg/m2, inclusive * Recent formal diagnosis of OSA meeting all the following criteria: AHI \> 10, Central apneas \< 25% of events, PLM arousal index \< 15, no prior/concomitant OSA therapy * Subject is fluent in English and subject understands the study protocol and is willing and able to comply with study requirements and sign informed consent. * Participant voluntarily agrees to participate in this study and signs an Institutional Review Board (IRB)-approved informed consent prior to performing any of the study-related procedures.

Exclusion criteria

* A female of child-bearing potential that is pregnant or intends to become pregnant. * Any unstable or severe medical condition of any organ system including congestive heart failure, COPD, renal failure, neuromuscular disease, etc., or at the discretion of the site Principal Investigator (PI). * Taking medication that may affect sleep, sleepiness, or alertness including hypnotics, sedatives, alerting agents, stimulants, anticonvulsants, etc. * The presence of any other sleep disorder (insomnia, periodic limb movement disorder, etc.). * The presence of a psychiatric disorder, including attempted suicide within 1 year prior to screening, or current suicidal ideation. * A serious illness or infection in the past 30 days. * Excessive alcohol consumption (\>21 drinks/week). * The use of any illegal drug(s). * Any condition that in the investigator's opinion would present an unreasonable risk to the participant, or which would interfere with their participation in the study or confound study interpretation.

Design outcomes

Primary

MeasureTime frameDescription
Subjective comfortThis outcome will be evaluated after 4 days of treatment in each armThis outcome will be evaluated through a 10 point Visual Analog Scale (VAS)

Secondary

MeasureTime frameDescription
P95This outcome will be evaluated after 4 days of treatment in each armPressure delivered by the device for 95% of the time. It will be downloaded from the device.
Residual AHIThis outcome will be evaluated after 4 days of treatment in each armApnea hypopnea index downloaded from the device
Adherence (in average h/night)This outcome will be evaluated after 4 days of treatment in each armUse of the device per night downloaded from the device

Contacts

CONTACTWilliam Noah, MD
whnoah@sleepres.com6153946624

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 16, 2026