KPAP vs EPR for Efficacy
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: APAP + KPAP, APAP + EPR.
- Who it may be relevant to
- Registry conditions: Obstructive Sleep Apnea. Basic parameters: 20 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
A Randomized Crossover Study of Continuous Positive Airway Pressure (CPAP) Treatment Efficacy: Kairos PAP (KPAP) Versus Expiratory Pressure Relief (EPR)
Overview
The KPAP EPR is a randomized, crossover study in which treatment efficacy will be compared between SleepRes CPAP + KPAP and ResMed CPAP + EPR. Participants will be chosen from those with a recent OSA diagnosis (following an in-lab polysomnogram, a split-night study or a home sleep apnea test) and with no previous use of OS therapy (PAP-naïve). Upon signing an informed consent, participants will be scheduled to come to the sleep laboratory for a manual titration on CPAP. Once the therapeutic pressure is determined, participants will be randomized to start either CPAP + KPAP (delivered by a SleepRes device) or CPAP + EPR (delivered by a ResMed device). Participants will be blinded to the sequence order. They will then be invited to the laboratory for two overnight sleep studies, one on each treatment device, in the order determined by the randomization, with a minimum washout of 1 week and a maximum of 3 weeks. Both studies will use the therapeutic pressure determined during manual titration. The KPAP drop will be set to the maximum level (i.e., 5 cmH2O), while EPR will be set on 3. The next morning of each sleep study, participants will be administered visual analog scale (VAS) questionnaires to examine subjective sleep quality (1=best sleep quality; 10=worst sleep quality) and, after all studies are completed a device subjective preference (1=CPAP+KPAP was extremely better than CPAP+EPR; 10=the opposite). The study will be single blinded with both the participants (the device will be concealed in the laboratory so that participants will not be able to understand what treatment they are on) and the registered technician scoring the polysomnographies blinded to treatment allocation.
Interventions
- Device APAP + KPAP
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) - Device APAP + EPR
A ResMed device will deliver auto-adjusting positive airway pressure (APAP) + Expiratory Pressure Relief set on level 3
Primary outcome measures
- Treatment efficacy [Time frame: This outcome will be evaluated after one night of treatment]
Secondary outcome measures (6)
- Leak [Time frame: This outcome will be evaluated after one night of treatment]
- Next-morning subjective sleep quality [Time frame: This outcome will be evaluated after one night of treatment]
- Next-morning subjective device preference [Time frame: This outcome will be evaluated after one night of treatment]
- Sleep onset latency [Time frame: This outcome will be evaluated after one night of treatment]
- Total sleep time [Time frame: This outcome will be evaluated after one night of treatment]
- Sleep efficiency [Time frame: This outcome will be evaluated after one night of treatment]
Eligibility criteria
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.
- Chronic nocturnal oxygen therapy.
- Active hypoglossal nerve stimulation implant.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Crossover
- Masking
- Single blind
- Primary purpose
- Treatment
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07530523 · Lab 0002