NCT02204696

Brief Summary

The purpose of the study is to determine if tonsillectomy eliminates symptoms of obstructive sleep apnea in patients with obstructive sleep apnea and marked tonsillar hypertrophy with normal soft palate and uvula length.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Dec 2010

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
withdrawn

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2010

Completed
3.7 years until next milestone

First Submitted

Initial submission to the registry

July 28, 2014

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 30, 2014

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2015

Completed
Last Updated

December 2, 2015

Status Verified

November 1, 2015

Enrollment Period

4.6 years

First QC Date

July 28, 2014

Last Update Submit

November 30, 2015

Conditions

Keywords

sleep apneaobstructive sleep apneasleepinessquality of life

Outcome Measures

Primary Outcomes (1)

  • apnea-hypopnea index

    This will be determined by home sleep study.

    8 weeks

Secondary Outcomes (2)

  • Epworth Sleepiness Scale score

    8 weeks

  • Functional Outcomes of Sleep Questionnaire score

    8 weeks

Other Outcomes (1)

  • Insomnia Severity Index

    8 weeks

Study Arms (1)

Tonsillectomy

All participants will undergo baseline sleep study, a second preoperative sleep study after a period of watchful waiting, and a postoperative sleep study.

Procedure: Tonsillectomy

Interventions

TonsillectomyPROCEDURE

Study participants will be scheduled for tonsillectomy based on clinical indications, with the need for surgery determined prior to study enrollment and not based on study enrollment.

Tonsillectomy

Eligibility Criteria

Age17 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults with obstructive sleep apnea and tonsillar hypertrophy

You may qualify if:

  • At least 18 years of age
  • Documented obstructive sleep apnea (with central apneas of the total number of apneas plus hypopneas)
  • Able to complete all forms in English and follow-up appointments
  • Willing to undergo 3 home sleep studies; and markedly hypertrophic (3+ or 4+) tonsils
  • Tonsil size of 3+ or 4+ corresponds to tonsils that occupy more than 50% of the space between the tonsillar fossa (side of the throat) and midline

You may not qualify if:

  • No craniofacial abnormality
  • No history of COPD, untreated psychological disorder, other sleep disorder, alcohol or drug abuse
  • Body mass index \<35 kg/m2
  • Unable to tolerate other treatments for obstructive sleep apnea
  • Soft palate length \> 4 cm
  • Uvula length \> 2 cm
  • No significant nasal obstruction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Keck Hospital of USC

Los Angeles, California, 90033, United States

Location

MeSH Terms

Conditions

Sleep Apnea, ObstructiveSleep Apnea SyndromesSleepiness

Interventions

Tonsillectomy

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Otorhinolaryngologic Surgical ProceduresSurgical Procedures, Operative
0

Study Design

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

Study Record Dates

First Submitted

July 28, 2014

First Posted

July 30, 2014

Study Start

December 1, 2010

Primary Completion

July 1, 2015

Study Completion

July 1, 2015

Last Updated

December 2, 2015

Record last verified: 2015-11

Locations