NCT02410850

Brief Summary

Obstructive sleep apnea (OSA) is a highly prevalent breathing problem that occurs during sleep. OSA have been associated with the obesity epidemic in developing countries; additionally, high OSA prevalence rates are present in populations with cardiovascular and metabolic disorders. Two OSA treatments are currently available, oral appliance (OA) therapy and continuous positive airway pressure (CPAP). OAs are an underutilized non-surgical treatment and few studies have analyzed their long-term effectiveness for patients with OSA. The purpose of this study is to assess the long-term effectiveness of OA therapy in patients with OSA and to explore any changes on cardiovascular related morbidity and mortality related to this therapy.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
4mo left

Started Apr 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress96%
Apr 2018Sep 2026

First Submitted

Initial submission to the registry

March 30, 2015

Completed
9 days until next milestone

First Posted

Study publicly available on registry

April 8, 2015

Completed
3 years until next milestone

Study Start

First participant enrolled

April 1, 2018

Completed
8.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Last Updated

January 23, 2024

Status Verified

January 1, 2024

Enrollment Period

8.4 years

First QC Date

March 30, 2015

Last Update Submit

January 21, 2024

Conditions

Keywords

Oral Applianceobjective adherencecardiovascular eventscardiovascular mortalitycerebrovascular mortalitycost effectiveness

Outcome Measures

Primary Outcomes (3)

  • Long term effectiveness of Oral Appliance therapy by assessing responses to treatment specific questionnaires and other questionnaires such as Functional Outcomes of Sleep Questionnaire (FOSQ), Epworth Sleepiness Scale(ESS), and Short Form 36 (SF-36)

    5 years

  • Impact of Oral Appliance therapy on cardiovascular morbidity by assessing health changes, hospitalizations and number of deaths during treatment with Oral Appliance

    5 years

  • Impact of Oral Appliance therapy on cardiovascular mortality by assessing health changes, hospitalizations and number of deaths during treatment with Oral Appliance

    5 years

Secondary Outcomes (1)

  • Objective adherence by assessing Oral Appliance adherence chip data

    1,3,5 years

Study Arms (13)

University of Montreal

Patients from University of Montreal in Canada

Device: Oral Appliance

University of Antwerp

Patients from University of Antwerp in Belgium.

Device: Oral Appliance

University of Sydney

Patients from University of Sydney in Australia.

Device: Oral Appliance

Angers University Hospital

Patients from Angers University Hospital in France.

Device: Oral Appliance

University of Gronigen

Patients from University of Gronigen in Netherlands.

Device: Oral Appliance

Kaiser Permanente

Patients from Kaiser Permanente from USA.

Device: Oral Appliance

Stanford University

Patients from Stanford University from USA.

Device: Oral Appliance

Laval University

Patients from Laval University in Canada.

Device: Oral Appliance

Cambridge University

Patients from Cambridge University in UK.

Device: Oral Appliance

Kyushu University

Patients from Kyushu University in Japan

Device: Oral Appliance

Japan Somnology Center

Patients from Japan Somnology Center in Japan.

Device: Oral Appliance

Uniformed Services University

Patients from the Uniformed Services University in USA.

Device: Oral Appliance

University of British Columbia

Patients from the University of British Columbia in Canada.

Device: Oral Appliance

Interventions

Mandibular Advancement Splints

Angers University HospitalCambridge UniversityJapan Somnology CenterKaiser PermanenteKyushu UniversityLaval UniversityStanford UniversityUniformed Services UniversityUniversity of AntwerpUniversity of British ColumbiaUniversity of GronigenUniversity of MontrealUniversity of Sydney

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who seek Oral Appliance therapy.

You may qualify if:

  • Patients are currently prescribed Oral Appliance for their Obstructive Sleep Apnea

You may not qualify if:

  • Patients under the age of 18 years.
  • Patients that do not understand the English language.
  • Patients that refuse to sign the informed consent for any reason.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of British Columbia

Vancouver, British Columbia, V6T 1Z3, Canada

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

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

Study Officials

  • Fernanda Almeida, DDS,Phd

    University of British Columbia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Fernanda Almeida, DDS,PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

March 30, 2015

First Posted

April 8, 2015

Study Start

April 1, 2018

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

January 23, 2024

Record last verified: 2024-01

Locations