UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000033360
Receipt number R000038032
Scientific Title Clinical research of the bone conductive hearing system.
Date of disclosure of the study information 2018/07/11
Last modified on 2022/12/06 12:30:26

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Basic information

Public title

Clinical research of the bone conductive hearing system.

Acronym

Bone conductive hearing system

Scientific Title

Clinical research of the bone conductive hearing system.

Scientific Title:Acronym

Bone conductive hearing system

Region

Japan


Condition

Condition

conductive hearing loss.
mixed hearing loss.

Classification by specialty

Oto-rhino-laryngology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Hearing loss causes serious disability of smooth communication, so the appropriate medical treatment is important to get out from this situation. Conductive hearing loss was usually treated by fitting hearing aid or ossicular reconstruction surgely but in some case, the improvement of hearing ability was not sufficient for smooth communication. The bone conductive hearing implantation will improve the hearing ability and communication ability of bone conductive hearing loss patients. In this clinical research, we confirm the BONEBRIDGE system benefit in Japanese conductive hearing loss patients.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The therapeutic effects are evaluated at 12 month after the BONEBRIDGE operation, using free field audiometry. In this test, marked recovery is defined as 20dB or more recovery in the mean hearing level at the 500, 1000 2000 and 4000Hz

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Self control

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

The bone conductive hearing implantation is performed under general anesthesia. For the bone conductive implantation, a bed for FMT (Floating
Mass Transducer) is drilled in the sinodural angle and fixed with two cortical screws. The receiver coil of
the BCI is placed on the bone under the periosteum. The implant system can be activated, after the
swelling of the skin flap above the implant has reduced.

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

5 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Conductive or mixed hearing loss patients with residual bone conduction thresholds in 500Hz to 4000Hz under 45 dB.

Key exclusion criteria

The patients with severe bone malformation and did not have enough setting space for bone conductive implantation.
Patient who did not perform general anesthesia.

Target sample size

5


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Hiroaki Suzuki

Organization

Shinshu University School of Medicine

Division name

Department of Otorhinolaryngology

Zip code


Address

3-1-1 Asahi, Matsumoto, Nagano, JAPAN

TEL

0263-37-2666

Email

nishio@shinshu-u.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Shin-ichi Usami

Organization

Shinshu University School of Medicine

Division name

Department of Otorhinolaryngology

Zip code


Address

3-1-1 Asahi, Matsumoto, Nagano, JAPAN

TEL

0263-37-2666

Homepage URL


Email

usami@shinshu-u.ac.jp


Sponsor or person

Institute

Shinshu University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

none

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2018 Year 07 Month 11 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2018 Year 06 Month 21 Day

Date of IRB

2016 Year 08 Month 16 Day

Anticipated trial start date

2018 Year 07 Month 06 Day

Last follow-up date

2021 Year 06 Month 03 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2018 Year 07 Month 11 Day

Last modified on

2022 Year 12 Month 06 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000038032


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name