DAW2020 on OSA Endotypic Traits (SedOSA)

Mass General Brigham

Status and phase

Invitation-only

Phase 2

Phase 1

Conditions

Obstructive Sleep Apnea (OSA)

Treatments

Drug: Placebo oral capsule

Drug: DAW2020 oral capsule

Study type

Interventional

Funder types

Other

Identifiers

NCT04538755

2020p002760-1

Details and patient eligibility

About

Obstructive sleep apnea (OSA) is common and has major health implications but treatment options are limited. Some OSA patients with low arousal threshold wake up prematurely during an obstructive event and do not have time for spontaneous upper airway (UA) dilator muscle recruitment. As a consequence they are exposed to apnea and hypopnea cycling. In this protocol the investigators will test the effect of DAW2020 administered before sleep on OSA phenotype traits and OSA severity during sleep.

Full description

Two overnight sleep studies will be performed: a drug night and a placebo night. The patient will breath spontaneously (without CPAP) for both nights. On the study nights, subjects will present to the laboratory in the evening and be instrumented with a full polysomnigraphy for monitoring sleep, physiological variables (endotypes), and respiratory events. A history and physical examination will be performed on each night prior to beginning the study, as will a urine pregnancy test in premenopausal women. DAW2020 34 mg will be given 4 hours before lights out. Subjects will sleep at least 50% of the night in the supine position. At least four hours of sleep with high quality signal acquisition will be required for a study to be judged adequate. After the first overnight study is completed, there will be a one-week washout period prior to crossing over to the other treatment.

Enrollment

20 estimated patients

Sex

All

Ages

21 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Moderate-to-severe OSA (AHI ≥ 15 events/hr)

Exclusion criteria

All participants will be healthy and without major organ system disease that would preclude undergoing the physiological measurements.
Use of medications expected to stimulate or depress respiration (including opioids, barbiturates, acetazolamide, doxapram, almitrine, theophylline, 4-hydroxybutanoic acid).
Use of SNRIs/SSRIs.
Conditions likely to affect OSA physiology: neuromuscular disease or other major neurological disorder, heart failure (also below), or any other unstable major medical condition.
Sleep disordered breathing or respiratory disorders other than obstructive sleep apnea:
Other sleep disorders: periodic limb movements (periodic limb movement arousal index > 10/hr), narcolepsy, or parasomnias.
Hypersensitivity to the study drug (angioedema or urticaria)
Contraindications to DAW2020
Use of medications that lengthen QTc interval
Hypokaliemia, hypomagnesemia, uncontrolled thyroid disease
Severe claustrophobia.