NCT01837914

Brief Summary

Obstructive Sleep Apnea is a serious medical condition affecting an estimated 1-5% of children. The disease is believed to have several overlapping causes including large tonsils and small or narrow jaws. This prospective, randomized cross-over study will evaluate the effectiveness of orthodontic treatment of narrow upper teeth and jaws compared to the current standard of care which is surgical removal of the adenoids and tonsils. Patients will be evaluated by both an orthodontist and ENT physician, complete a series of questionnaires and undergo an overnight sleep study, both initially and after undergoing the randomized treatment. Patients who on reassessment have residual symptoms of sleep apnea will then be crossed over and receive the other form of treatment. The levels of improvement to both subjective (questionnaire) and objective (overnight sleep study) measures of sleep apnea will then be compared. The null hypothesis is there is no significant difference in improvement between maxillary expansion and adenotonsillectomy in the objective and subjective outcome measures in children with mild to moderate obstructive sleep apnea.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started May 2013

Longer than P75 for not_applicable

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

April 18, 2013

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 23, 2013

Completed
8 days until next milestone

Study Start

First participant enrolled

May 1, 2013

Completed
5.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

November 22, 2022

Status Verified

November 1, 2022

Enrollment Period

5.6 years

First QC Date

April 18, 2013

Last Update Submit

November 17, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • apnea-hypopnea index

    Polysomnography sleep test score

    4 months after intervention

Study Arms (2)

Maxillary expansion as First treatment

EXPERIMENTAL

Orthodontic expansion of upper jaw, then cross-over to adenotonsillectomy

Procedure: Maxillary expansionProcedure: Adenotonsillectomy

Adenotonsillectomy as First treatment

ACTIVE COMPARATOR

surgical removal of tonsils and adenoids, then cross-over to maxillary expansion

Procedure: Maxillary expansionProcedure: Adenotonsillectomy

Interventions

Adenotonsillectomy as First treatmentMaxillary expansion as First treatment
Adenotonsillectomy as First treatmentMaxillary expansion as First treatment

Eligibility Criteria

Age6 Years - 10 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Ages 6.0 to 10.0 years at the time of screening;
  • Diagnosed with obstructive sleep apnea defined as AHI\>2, confirmed on overnight, laboratory-based PSG;
  • Parental report of witnessed apneas or habitual snoring (on average more than 3 nights per week);
  • Deemed to be a candidate for ME by orthodontic evaluation;
  • Deemed to be a candidate for tonsillectomy and adenoidectomy by otolaryngologic evaluation.

You may not qualify if:

  • Severe OSA or significant hypoxemia in the presence of tonsillar or adenoid hypertrophy requiring surgical intervention defined as AHI\>25 or SpO2 \<90% for \>2% sleep time.
  • An associated craniofacial syndrome or anomaly, including cleft lip and/or palate, or any anatomic or systemic condition that would otherwise exclude the patient from orthodontic treatment.
  • Recurrent tonsillitis that meets American Academy of Otolaryngology - Head and Neck Surgery clinical practice guidelines for surgery.
  • Extremely overweight defined as a body mass index z-score \> 2.99 for age group and sex.
  • Severe health problems that could be exacerbated by delayed treatment for OSA, including: severe cardiopulmonary disorders (e.g., cystic fibrosis, congenital heart disease); sickle cell disease; poorly controlled asthma (with \> 1 hospitalization in last year); epilepsy requiring medication; diabetes (type 1 or type 2) requiring medication; doctor-diagnosed heart disease; or a history of stage II hypertension (HTN) defined as \> 99% percentile and/or requiring medication.
  • Psychiatric or behavioral disorders that would otherwise exclude the patient from receiving orthodontic treatment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

BC Children's Hospital Otolaryngology Department

Vancouver, British Columbia, V6H 3N1, Canada

Location

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

Palatal Expansion Technique

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Orthodontics, CorrectiveOrthodonticsDentistry

Study Officials

  • Benjamin Pliska, DDS

    University of British Columbia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

April 18, 2013

First Posted

April 23, 2013

Study Start

May 1, 2013

Primary Completion

December 1, 2018

Study Completion

December 1, 2018

Last Updated

November 22, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

NA no IPD will be shared

Locations