Randomized Clinical Trial for Tonsil Surgery in Adults With Obstructive Sleep Apnea and Enlarged Tonsils

Starting soon · Not applicable

Conditions studied: Sleep Apnea, Obstructives, Tonsil Hypertrophy

In brief

The aim is to investigate whether the tissue-preserving tonsil surgery technique is as effective as complete tonsil removal in the treatment of obstructive sleep apnea. The primary outcome measure is the change in the apnea-hypopnea index (AHI) before surgery and at 4-6, 24, and 60 months after surgery.

Key facts

Study ID

NCT07580170

Run by

Turku University Hospital

People needed

132

Starts

2026-10-01

Expected to finish

2036-01-01

Last updated by the study team

2026-06-03

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• BMI < 35
• Tonsil size 2 - 4
• Otherwise healthy patient fit for tonsil surgery
• Apnea-hypopnea index > 15
• Obstructive sleep apnea symptoms

You may not qualify if…

• Pathological hemostasis or use of anticoagulation
• Craniofacial deformities
• Neurological condition with muscular hypotonia
• Other surgical treatment for OSA

Where it is running

• Helsinki University Hospital — Helsinki, Finland
• Oulu University Hospital — Oulu, Finland
• Tampere University Hospital — Tampere, Finland
• Turku University Hospital — Turku, Finland

Full record on ClinicalTrials.gov

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