Skip to content

Pharmacological Treatment Targeting Endotypic Traits of Obstructive Sleep Apnea

Pharmacological Treatment Targeting Endotypic Traits of Obstructive Sleep Apnea

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06295562
Enrollment
45
Registered
2024-03-06
Start date
2024-11-05
Completion date
2025-10-22
Last updated
2026-04-23

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

Conditions

Obstructive Sleep Apnea of Adult

Keywords

compensation, upper airway, Taiwan, serotonin, noradrenaline

Brief summary

This study will conduct 3 intervention trials with 44 different participants in each trial, with 22 participants will undergo in-laboratory overnight polysomnograms (PSGs) at one night of medication intervention, and the other 22 at taking placebo (contained starch) 1 h before sleep. Three medication regimens will be tested: (1) atomoxetine 80mg combined with oxybutynin 5mg; (2) venlafaxine 37.5mg; and (3) oxybutynin 5mg combined with trazodone 100mg. Endotypic traits will be estimated using the Phenotyping Using Polysomnography method. The primary outcome is the change in apnea-hypopnea index, and secondary outcomes include endotypic traits and sleep parameters.

Interventions

DRUGAtomoxetine 80mg combined with oxybutynin 5mg

Atomoxetine 80mg combined with oxybutynin 5mg

DRUGVenlafaxine 37.5mg

Venlafaxine 37.5mg

DRUGoxybutynin 5mg combined with trazodone 100mg

oxybutynin 5mg combined with trazodone 100mg

DRUGPlacebo

Placebo tablet

Sponsors

China Medical University Hospital
Lead SponsorOTHER

Study design

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

Eligibility

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

Inclusion criteria

* apnea-hypopnea index ≥ 15 hr-¹

Exclusion criteria

* the presence of pulmonary, cardiac, neurologic, or other active severe medical or psychiatric diseases * current use of continuous positive airway pressure therapy * use of drugs that might interact with the investigational medication or known to affect sleep during the trial or 1 month before the study * known allergy to the investigational medication * current smoking * heavy alcohol drinking (male \> 14 drinks and women \>7 drinks per week) * pregnant or lactating * periodic limb movement index \> 15hr-1 * the presence of sleep-related hypoventilation

Design outcomes

Primary

MeasureTime frameDescription
Apnea-hypopnea indexPre-intervention and after single night interventionChange in apnea-hypopnea index.

Secondary

MeasureTime frameDescription
Arousal thresholdPre-intervention and after single night interventionEndotyping using polysomnography will be estimated with the PUP method.
Upper airway collapsibilityPre-intervention and after single night interventionEndotyping using polysomnography will be estimated with the PUP method.
Loop gainPre-intervention and after single night interventionEndotyping using polysomnography will be estimated with the PUP method.
Upper airway muscle compensationPre-intervention and after single night interventionEndotyping using polysomnography will be estimated with the PUP method.

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 24, 2026