ISRCTN ISRCTN50406162
DOI https://doi.org/10.1186/ISRCTN50406162
Protocol serial number §97/2017
Sponsor Helsinki University Hospital
Funders State funding for University level health research, Research Foundation for ENT Disorders
Submission date
21/11/2017
Registration date
23/11/2017
Last edited
14/11/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Ear, Nose and Throat
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Secretory otitis media is an ear condition where fluid accumulates behind the eardrum and remains there after an ear infection or blockage of the eustachian tube that drains fluid from the ears. Balloon Eustachian tuboplasty (BET) is a potential treatment option where a balloon is inserted into the Eustachian tube, inflated, then withdrawn. About 70-80% of adult patients seem to benefit from BET, at least briefly. Strong evidence of its long-term effectiveness is required. The aim of this study is to assess the effectiveness of BET in patients withlong-term Eustachian tube dysfunction.

Who can participate? 
Patients with persistent secretory otitis media or Eustachian tube dysfunction

What does the study involve? 
Participants are randomly allocated to be treated with either BET or sham surgery under local anaesthetic. Ear examinations are carried out 3 and 12 months after the operation.

What are the possible benefits and risks of participating?
There may be no direct benefit for the patient but the information revealed from this study will help improve the treatment of people with ETD. There are no known severe risks associated with BET.

Where is the study run from? 
1. Helsinki University Hospital (Finland)
2. Tampere University Hospital (Finland)
3. Turku University Central Hospital (Finland)

When is the study starting and how long is it expected to run for? 
January 2017 to May 2022

Who is funding the study? 
1. State funding for university level health research (Finland)
2. Research Foundation for ENT Disorders (Finland)

Who is the main contact? 
Dr Saku Sinkkonen

Contact information

Dr Saku Sinkkonen
Scientific

Kasarmikatu 11-13
Helsinki
00029
Finland

ORCiD logoORCID ID 0000-0002-6601-4216

Study information

Primary study designInterventional
Study designProspective blinded placebo-controlled multi-centre study
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleEfficacy of balloon Eustachian tuboplasty - prospective, blinded and placebo-controlled multi-centre study
Study acronymEBET
Study objectivesBalloon Eustachian tuboplasty (BET) offers benefit to patients with persistent secretory otitis media, severe symptoms of Eustachian tube dysfunction (ETD) or baro-challenged ETD.
Ethics approval(s)Tampere University Hospital Ethics Committee, 02/05/2017, ref: R17040
Health condition(s) or problem(s) studiedPersistent secretory otitis media, severe symptoms of ETD or baro-challenged ETD
InterventionParallel-group randomisation is made after local anaesthesia induction before the operation. Patients are treated with either BET or sham surgery under local anaesthesia. The patients are blinded to the procedure. Postoperative controls are arranged 3 and 12 months after operation in a blinded manner by a physician not given the treatment.
Intervention typeProcedure/Surgery
Primary outcome measure(s)

Measured at baseline, 3 months and 1 year:
1. Valsalva maneuver based on physicians descriptive findings
2. Otomicroscopy based on physicians descriptive findings
3. Tympanometry results classified as A, B and C type outcomes
4. Tubomanometry results based on the Eustachian tube opening and opening latency index
5. Need for grommets

Key secondary outcome measure(s)

Quality of life measured with disease specific questionnaire ETDQ7 at baseline, 3 months and 1 year

Completion date31/05/2022

Eligibility

Participant type(s)Patient
Age groupAdult
SexAll
Target sample size at registration165
Key inclusion criteriaAll patients in this study suffer from dilatory Eustachian tube dysfunction and are deemed suitable for BET. Possible indications are:
1. Persistent secretory otitis media
2. Severe symptoms of ETD
3. Baro-challenged ETD
Key exclusion criteria1. The occurrence of cleft palate in any form
2. Current ventilating grommet
3. Tympanic membrane perforation
4. Adhesive otitis
5. Cholesteatoma
6. Cystic fibrosis
7. Immotile cilia syndrome
8. Untreated nasal polyposis
9. Samter's triade
10. Untreated gastroesophageal reflux disease
11. Other mechanical obstruction in nasopharynx
Date of first enrolment27/11/2017
Date of final enrolment31/12/2020

Locations

Countries of recruitment

  • Finland

Study participating centres

Helsinki University Hospital
Surgical Hospital, Kasarmikatu 11-13
Helsinki
00029
Finland
Turku University Central Hospital
Kiinamyllynkatu 4–8
Turku
20521
Finland
Tampere University Hospital
Teiskontie 35
Tampere
33521
Finland

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryOther
IPD sharing planThe datasets generated and/or analysed during the current study during this study will be included in the subsequent results publication.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

14/11/2022: The overall trial end date has been changed from 31/12/2022 to 31/05/2022 and the plain English summary has been updated to reflect this.