NCT00747890

Brief Summary

Obstructive sleep apnea (OSA) is one of the most common sleep disorder. There are numerous conditions that are related to OSA, such as diabetes, cardiovascular diseases, and metabolic syndrome. If the patient with OSA have large tonsils, soft and largened uvula or flacid soft palate, one might benefit from operative treatment of OSA. The aim of our study is to find out whether an operative treatment is effective in mild OSA patients with carefully assessed anatomical predispositions. Our ultimate goal is to evaluate the effects of operative treatment in mild OSA itself and in the diseases related to OSA. We measure the cardiovasculary functions, symptoms, postoperative recovery, antropometry, laboratory tests, the quality of life, the quality of sleep and the inflammatory system in sleep apnea before and after the surgery.

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
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2008

Longer than P75 for not_applicable

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

Study Start

First participant enrolled

September 1, 2008

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

September 4, 2008

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 5, 2008

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2012

Completed
Last Updated

November 1, 2011

Status Verified

October 1, 2011

Enrollment Period

4.3 years

First QC Date

September 4, 2008

Last Update Submit

October 31, 2011

Conditions

Outcome Measures

Primary Outcomes (1)

  • Apnea Hypopnea Index

    One year(before and after surgery)

Secondary Outcomes (1)

  • Quality of life

    One Year

Study Arms (2)

I

ACTIVE COMPARATOR
Procedure: Modified tonsillectomy

II

OTHER
Other: Lifestyle counselling by physician

Interventions

* Tonsillectomy * Uvulectomy * Soft palatal resection * Lifestyle counselling by physician: General (e.g. avoidance of smoking, alcohol drinking) and nutritional education, and sleeping positional guidance

I

General (e.g. avoidance of smoking, alcohol drinking) and nutritional education, and sleeping positional guidance.

II

Eligibility Criteria

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

You may qualify if:

  • Age 18-65
  • BMI \<35
  • AHI 5-30 events/h
  • Largened tonsils Grade ≥1

You may not qualify if:

  • Age \<18 or \> 65
  • BMI \>35
  • AHI \<5 or \>30
  • Tonsil size \< 1
  • Severe nasal polyposis
  • Pregnancy
  • Chronic kidney, liver or thyroid disease
  • Active treatment of OSA of any kind

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kuopio University Hospital

Kuopio, 70300, Finland

RECRUITING

Related Publications (1)

  • Makkonen J, Blomster H, Raappana A, Markkanen S, Numminen J, Kivekas I, Valtonen O, Rautiainen M, Tuomilehto H. Adult obstructive sleep apnea treated with tonsillectomy: a randomized controlled clinical trial. Acta Otolaryngol. 2025 Oct;145(10):989-996. doi: 10.1080/00016489.2025.2557566. Epub 2025 Sep 16.

MeSH Terms

Conditions

Sleep Apnea Syndromes

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Central Study Contacts

Henry Blomster, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD

Study Record Dates

First Submitted

September 4, 2008

First Posted

September 5, 2008

Study Start

September 1, 2008

Primary Completion

December 1, 2012

Study Completion

December 1, 2012

Last Updated

November 1, 2011

Record last verified: 2011-10

Locations