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KPAP Adherence Crossover Study

NCT06413134 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-05-06

No results posted yet for this study

Summary

A device able to provide less positive airway pressure (PAP) for the entire duration of inspiration and roughly half the duration of expiration, designated KPAP, is being developed by SleepRes for the treatment of obstructive sleep apnea (OSA). In prior studies, the administration of higher inspiratory than expiratory PAP did not substantially increase treatment efficacy or adherence to continuous PAP (CPAP), which remains low. In our recent investigation, we demonstrated that the addition of a resistor to the CPAP circuit to reduce inspiratory PAP increased subjective comfort. In another study, we showed that KPAP improved subjective comfort during wakefulness vs. fixed CPAP, while maintaining treatment efficacy. The present study, KPAP Adherence 1, is a randomized, crossover study designed to examine whether KPAP can improve adherence over APAP as an at home treatment for OSA.

Conditions

Interventions

DEVICE

KPAP

TheraPAP is a novel CPAP-based therapy in which pressure is dropped as much as 5 cmH2O starting at the beginning of inspiration and extending through the end of expiration where it rises back up to the true therapy pressure for a short period. It improves comfort by providing pressure only when it is needed and maintaining it at a low level the rest of the time. Normal CPAP/APAP therapy keeps pressure at the therapy level during the entire breath cycle, except with some alternate approaches where pressure is decreased but only during the expiratory phase.

DEVICE

APAP

Standard CPAP therapy where therapy pressure is automatically adjusted to prevent respiratory events from occurring. The TheraPAP prototype device will be used to operate in the APAP mode in addition to the TheraPAP intervention mode.

Sponsors & Collaborators

  • SleepRes Inc.

    lead INDUSTRY

Principal Investigators

  • William H Noah, MD · SleepRes, LLC., Sleep Centers of Middle Tennessee, LLC

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
20 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2026-12-01
Completion
2026-12-31
FDA Device
Yes

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06413134 on ClinicalTrials.gov