NCT04538755

Brief Summary

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.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Nov 2020

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 31, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 4, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

November 15, 2020

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 15, 2024

Completed
Last Updated

July 7, 2023

Status Verified

July 1, 2023

Enrollment Period

3.5 years

First QC Date

August 31, 2020

Last Update Submit

July 5, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Effects of DAW2020 on arousal threshold (%eupnea)

    Arousal threshold will be calculated using diaphragm EMG

    1 night

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Placebo capsule 4 hours before sleep

Drug: Placebo oral capsule

DAW2020

ACTIVE COMPARATOR

DAW2020 capsule 4 hours before sleep

Drug: DAW2020 oral capsule

Interventions

Placebo before sleep

Placebo

DAW2020 34 mg 4 h before sleep, single night administration

DAW2020

Eligibility Criteria

Age21 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States

Location

Related Publications (1)

  • Messineo L, Gell L, Calianese N, Sofer T, Vena D, Azarbarzin A, Labarca G, Taranto-Montemurro L, Yang HC, Wang TY, Kim M, Smith H, White D, Sands S, Wellman A. Effect of Pimavanserin on the Respiratory Arousal Threshold from Sleep: A Randomized Trial. Ann Am Thorac Soc. 2022 Dec;19(12):2062-2069. doi: 10.1513/AnnalsATS.202205-419OC.

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor of Medicine

Study Record Dates

First Submitted

August 31, 2020

First Posted

September 4, 2020

Study Start

November 15, 2020

Primary Completion

May 15, 2024

Study Completion

June 15, 2024

Last Updated

July 7, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

Locations