NCT03729895

Brief Summary

The oral appliances (OAs) are considered to be an effective treatment modality for snoring and various forms of obstructive sleep apnea syndrome (OSAS). They facilitate the displacement of the mandible anteriorly and widen the upper airway during sleep. Lateral cephalometry has been used for the two-dimensional evaluation of upper airway form with several limits.The purpose of present study is to investigate an accurate three-dimensional (3D) volume analyses with cone beam computed tomography (CBCT) scans to confirm the effects of OAs on the upper airway in patients with OSAS.The investigators aim to enroll twenty-four patients with mild,moderate or severe OSAS, intolerant to continuous positive air pressure therapy and rejection a surgical approach,who will be treated with adjustable customized OAs and evaluated with CBCT and polysomnography. Upper airway form was examined and the volume was measured in two different areas. Specific planes have been considered to match the data and calculate the benefit obtained with therapy.

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
24

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2018

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

September 24, 2018

Completed
1 month until next milestone

Study Start

First participant enrolled

November 1, 2018

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 5, 2018

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2019

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2019

Completed
Last Updated

November 5, 2018

Status Verified

September 1, 2018

Enrollment Period

10 months

First QC Date

September 24, 2018

Last Update Submit

November 1, 2018

Conditions

Keywords

Orthodontic AppliancesCone-Beam Computed Tomography

Outcome Measures

Primary Outcomes (1)

  • change in apnea hypopnea index(AHI)

    the change from apneas hypopneas per hour of sleep registration of the subjects fitted with oral appliance at 3,6 and 10 months

    3,6 and 10 months

Secondary Outcomes (4)

  • change in apnea index(AI)

    3,6 and 10 months

  • change in lowest blood oxygen saturation

    3,6 and 10 months

  • change in minimal volume/transverse diameter/sagittal diameter/cross-sectional area of the velopharyngeal segment of the subjects

    3,6 and 10 months

  • change in minimal volume/transverse diameter/sagittal diameter/cross-sectional area of the oropharyngeal segment of upper airway

    3,6 and 10 months

Study Arms (1)

patients with OSAS in different degrees

EXPERIMENTAL

OSAS patients will be treated with an adjustable oral appliance and evaluated with cone-beam computed tomography and polysomnography.

Device: Adjustable Oral Appliance

Interventions

Adjustable Oral Appliance consist of plastic maxillary occlusal splint,mandible occlusal splint and adjustable connecting rod.It could offer a non-invasive form of treatment but also achieve a good therapeutic effect

patients with OSAS in different degrees

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Apnea-hypopnea index(AHI)between 5/h and 45/h
  • Aged between 18 and 50 years old
  • Intolerance to continuous positive airway pressure or surgery
  • Body Mass Index(BMI) \<35kg/m
  • Those who are competent to give written informed consent
  • Have adequate tooth support to retain the oral appliance

You may not qualify if:

  • Previous or current treatment for OSAS
  • Presence of respiratory/sleep disorders other than obstructive sleep apnea
  • Medication usage that could influence respiration or sleep
  • Concurrent unstable cardiovascular disease,neurological or mental disorders
  • Active periodontal endodontic disease or open bite
  • Temporomandibular joint disorders
  • Loss of posterior dental support to undermine the retention of oral appliance
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chiese PLA 307 hospital

Beijing, Beijing Municipality, 100071, China

Location

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

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

Study Officials

  • rongjian Lu, doctor

    Chinese PLA 307 Hospital

    STUDY DIRECTOR

Central Study Contacts

biao Guo, master

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Twenty-four patients diagnosed with OSAS in different degrees,who cannot tolerate continuous positive air pressure use and reject a surgical approach, were treated with adjustable customized oral appliances and evaluated with cone-beam computed tomography and polysomnography.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 24, 2018

First Posted

November 5, 2018

Study Start

November 1, 2018

Primary Completion

September 1, 2019

Study Completion

October 1, 2019

Last Updated

November 5, 2018

Record last verified: 2018-09

Data Sharing

IPD Sharing
Will not share

Locations