NCT03219034

Brief Summary

This study will compare the effectiveness of the two leading oral appliances (OAs) designs for the treatment of severe obstructive sleep apnea in overweight adults. The effectiveness of OAs has come under question since different designs are combined in evaluating treatment efficacy, for example when comparing them to continuous positive airway pressure Due to the wide range of reported efficacy (53 to 90%), it is of great value to identify the most effective design to guide sleep practitioners and patients.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
62

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Oct 2017

Geographic Reach
1 country

1 active site

Status
completed

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

July 11, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

July 17, 2017

Completed
3 months until next milestone

Study Start

First participant enrolled

October 10, 2017

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 20, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 20, 2019

Completed
2.8 years until next milestone

Results Posted

Study results publicly available

January 10, 2022

Completed
Last Updated

January 10, 2022

Status Verified

January 1, 2022

Enrollment Period

1.4 years

First QC Date

July 11, 2017

Results QC Date

November 20, 2020

Last Update Submit

January 6, 2022

Conditions

Keywords

oral appliancesleep qualitysleep apnea

Outcome Measures

Primary Outcomes (1)

  • Respiratory Event Index (REI) at T2

    Number of apneas and hypopneas (respiratory events) per hour of recording; REI was reported instead of AHI, as it is a more appropriate measure for home sleep testing.

    4 weeks

Secondary Outcomes (1)

  • Stable Sleep Percent

    4 weeks

Study Arms (2)

Oral appliance - A

EXPERIMENTAL

Anti-snoring intra-oral appliance that consists of two custom fitted trays which fit over the upper and lower teeth and uses a Midline Traction Mechanism to advance the mandible. The coupling mechanism is located at a single point midline, allows adjustment by incremental protraction (advancement) of the mandible. Trade Name: "TAP1" Oral Appliance, Airway Management Inc. Dallas, TX

Device: oral appliance - A ; washout; oral appliance BDevice: oral appliance - B; washout; oral appliance A

Oral appliance - B

EXPERIMENTAL

Anti-snoring intra-oral appliance that consists of two custom fitted trays which fit over the upper and lower teeth uses a Bilateral Thrust Mechanism to advance the mandible. The trays are engaged by means of adjustable lugs. Trade name: "SomnoDent Flex" Oral Appliance, SomnoMed Inc., Plano TX

Device: oral appliance - A ; washout; oral appliance BDevice: oral appliance - B; washout; oral appliance A

Interventions

Anti-snoring intra-oral appliance A that consists of two custom fitted trays which fit over the upper and lower teeth and uses a Midline Traction Mechanism to advance the mandible. The coupling mechanism is located at a single point midline, allows adjustment by incremental protraction (advancement) of the mandible. 1 week washout followed by anti-snoring intra-oral appliance B that consists of two custom fitted trays which fit over the upper and lower teeth uses a Bilateral Thrust Mechanism to advance the mandible. The trays are engaged by means of adjustable lugs.

Also known as: "TAP1" Oral Appliance; washout; "SomnoDent Flex"
Oral appliance - AOral appliance - B

Anti-snoring intra-oral appliance B that consists of two custom fitted trays which fit over the upper and lower teeth uses a Bilateral Thrust Mechanism to advance the mandible. The trays are engaged by means of adjustable lugs. 1-week washout followed by anti-snoring intra-oral appliance A that consists of two custom fitted trays which fit over the upper and lower teeth and uses a Midline Traction Mechanism to advance the mandible. The coupling mechanism is located at a single point midline, allows adjustment by incremental protraction (advancement) of the mandible.

Also known as: "SomnoDent Flex"; washout; "TAP1"
Oral appliance - AOral appliance - B

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • OSA PSG or PG diagnosed adults within 1 year
  • age \>18
  • Currently treated with continuous positive airway pressure (CPAP)
  • AHI ≥ \>30 events/hour of sleep
  • Two or more OSA symptoms (snoring, witnessed apnea or daytime hypersomnolence complaint)
  • BMI ≥ 30
  • At least 8 teeth per arch to support either OA device
  • Central and mixed apnea index \<5 events/hour
  • Mallampati score from I to III
  • Palatine tonsils - grade 0, 1, or 2
  • Consent to study's timeline
  • Willingness to wear home sleep test apparatus for at least 4 nights
  • Willingness to wear an oral appliance every night for 8 weeks
  • Willingness to pick up and return home sleep test kits as needed

You may not qualify if:

  • Cardiac \& pulmonary disease (e.g., congestive heart failure, severe arrhythmias, COPD);
  • Central sleep apnea;
  • Comorbidities with other sleep disorders
  • No active TMD or jaw muscle pain
  • Morphological airway abnormalities
  • Pre-existing difficulty swallowing; throat or neck related health issues
  • Endocrine dysfunction
  • Severe psychiatric disorders;
  • Previous OA therapy; ENT surgery
  • Restrictions in jaw opening
  • Pregnancy / breast feeding or intent to become pregnant during the study
  • Inability to apply the sleep recorders

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Texas A&M University College of Dentistry

Dallas, Texas, 75246, United States

Location

Related Publications (1)

  • Schneiderman E, Schramm P, Hui J, Wilson PD, Moura P, German Z, McCann A, Newton M. Randomized Trial of 2 Self-Titrated Oral Appliances for Airway Management. J Dent Res. 2021 Feb;100(2):155-162. doi: 10.1177/0022034520956977. Epub 2020 Sep 18.

MeSH Terms

Conditions

Sleep Apnea, ObstructiveSleep Initiation and Maintenance DisordersSleep Apnea Syndromes

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesMental Disorders

Results Point of Contact

Title
Dr. Emet Schneiderman
Organization
Texas A&M University College of Dentistry

Study Officials

  • Emet Schneiderman, PhD

    Texas A&M University College of Dentistry

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor Dr.

Study Record Dates

First Submitted

July 11, 2017

First Posted

July 17, 2017

Study Start

October 10, 2017

Primary Completion

March 20, 2019

Study Completion

March 20, 2019

Last Updated

January 10, 2022

Results First Posted

January 10, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

Locations