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CompletedNCT04320407Updated Nov 25, 2022Results posted

Osia CPT Code Study

An interventional study of Osia 2 System in Conductive Hearing Loss and Mixed Hearing Loss, sponsored by Cochlear. Completed at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-11-25.

Sponsored by Cochlear · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

To evaluate the clinical efficacy of the Osia 2 system in patients with conductive or mixed conductive hearing loss in a US cohort.

02

Conditions studied

  • Conductive Hearing Loss
  • Mixed Hearing Loss

Keywords

  • conductive hearing loss
  • mixed hearing loss
03

In context

Hearing Loss

1,092 studies on the registry are indexed under Hearing Loss; 235 are open to participants now.

This study's enrollment of 20 is below the median of 40 across 764 interventional studies indexed under Hearing Loss.

Browse Hearing Loss studies →

Lead sponsor

Cochlear is the lead sponsor of 91 studies on the registry; 11 are open to participants now.

Of its 16 completed or terminated interventional studies of FDA-regulated products, 15 (94%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Willing and able to provide written informed consent.
  • Proficient in English.
  • Hearing loss etiology of Conductive or Mixed Conductive loss.
  • Bone conduction PTA (.5, 1, 2, and 3 kHz) better than or equal to 55 dB HL in the treatment ear.
  • Aged 18 years and older.

Exclusion criteria

Exclusion Criteria:

  • Unwilling to wear the treatment device or comply with the surgical and rehabilitation requirements of the study.
  • Unable or unwilling to comply with the requirements of the clinical investigation as determined by the Investigator.
  • Medical, audiological or psychological conditions, as judged by the investigator that might contraindicate participation in the clinical investigation.
  • Investigator site personnel directly affiliated with this study and/or their immediate families; immediate family is defined as a spouse, parent, child, or sibling.
  • Cochlear employees or contractors engaged by Cochlear for the purposes of this investigation.
  • Currently participating, or participated within the last 30 days, in another interventional clinical investigation/trial involving an investigational drug or device.
  • Prior experience with a surgical bone conduction treatment option
  • Insufficient bone quality to support the BI300 implant as determined by the surgeon
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Osia 2 System

    Osia 2 Active Osseointegrated Implant System for Bone Conduction

    Device: Osia 2 System

Interventions

  • DeviceOsia 2 System

    The external Sound Processor, Osia 2 Active Osseointegrated Implant System for Bone Conduction, captures and digitizes the sound which is transferred to the internal implant where it is converted to an electrical signal.

06

What researchers measure

Primary outcomes

  1. Change From Baseline in Adaptive Speech in Noise Test Score for Osia 2 System at 3 Months Post-surgery

    Assessed with the Quick SIN test preoperative and at 3 months post-surgery. The Quick SIN test has a score range from +25.5 dB (decibel) SNR (signal-to-noise ratio) to -5 dB SNR. The participants are tested on 4 tests lists; each consists of 6 sentences (with 5 key words per sentence) that are presented at signal-to-noise ratios (SNR) which are decreased manually in 5-dB steps from 25 to 0. The key words in sentences are scored and counted as correct from an easy to difficult or unfavorable SNR. The best possible score on this test would be that of -5 dB SNR where all of the key words are repeated back correctly as a function of the SNR. The mean unaided preoperative score is substracted from the aided score at 3 months. A lower score indicates a better performance.

    Time frame: Preoperative, 3 months post-surgery

Secondary outcomes

  1. Number of Device or Procedure Related Adverse Events

    A device or procedure related adverse event (AE) is an AE for which a causal relationship between the use of the medical device and the AE cannot be ruled out. All related AEs are reported.

    Time frame: 6 months post-surgery

07

Results

Posted Nov 25, 2022

Participant flow

Participant flow — Overall Study
MilestoneOsia 2 System
Started20
Completed20
Not completed0

Outcome measures

PrimaryChange From Baseline in Adaptive Speech in Noise Test Score for Osia 2 System at 3 Months Post-surgery

Assessed with the Quick SIN test preoperative and at 3 months post-surgery. The Quick SIN test has a score range from +25.5 dB (decibel) SNR (signal-to-noise ratio) to -5 dB SNR. The participants are tested on 4 tests lists; each consists of 6 sentences (with 5 key words per sentence) that are presented at signal-to-noise ratios (SNR) which are decreased manually in 5-dB steps from 25 to 0. The key words in sentences are scored and counted as correct from an easy to difficult or unfavorable SNR. The best possible score on this test would be that of -5 dB SNR where all of the key words are repeated back correctly as a function of the SNR. The mean unaided preoperative score is substracted from the aided score at 3 months. A lower score indicates a better performance.

Time frame:
Preoperative, 3 months post-surgery
Reported as:
Mean · Score on a scale
Change From Baseline in Adaptive Speech in Noise Test Score for Osia 2 System at 3 Months Post-surgery
Score on a scaleOsia 2 System
Change From Baseline in Adaptive Speech in Noise Test Score for Osia 2 System at 3 Months Post-surgery6.1 ± 6.9
SecondaryNumber of Device or Procedure Related Adverse Events

A device or procedure related adverse event (AE) is an AE for which a causal relationship between the use of the medical device and the AE cannot be ruled out. All related AEs are reported.

Time frame:
6 months post-surgery
Reported as:
Number · Number of events
Number of Device or Procedure Related Adverse Events
Number of eventsOsia 2 System
Number of Device or Procedure Related Adverse Events15

Adverse events

Collected over From the day of surgery (day 0) to 6 months post-surgery. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Osia 2 System0/20 (0%)0/20 (0%)7/20 (35%)
Most frequent other events
Most frequent other events
EventOsia 2 System
Post-operative painGeneral disorders5/20
Post-operative swellingGeneral disorders2/20

Baseline characteristics

Age, Continuous
Age, Continuous(years)Osia 2 System
Mean47.9 ± 16.2
Sex: Female, Male
Sex: Female, Male(Participants)Osia 2 System
Female12
Male8
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Osia 2 System
Hispanic or Latino3
Not Hispanic or Latino17
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Osia 2 System
American Indian or Alaska Native1
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White17
More than one race0
Unknown or Not Reported2
Region of Enrollment
Region of Enrollment(participants)Osia 2 System
United States20
08

Study locations

4 sites
  • Arizona Ear Center
    Phoenix, Arizona 85004, United States
  • Center for Neurosciences
    Tucson, Arizona 85718, United States
  • University of Michigan
    Ann Arbor, Michigan 48109-5312, United States
  • Center for Hearing and Balance
    Chesterfield, Missouri 63017, United States
09

References and documents

Study documents

  • Study protocol · Jun 19, 2020
  • Statistical analysis plan · Jun 24, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Cochlear do not have an approved platform for public sharing of IPD collected in this study. Data may be provided to individual researchers on request

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 25, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04320407
Lead sponsor
Cochlear
Responsible party
Sponsor
First posted
Mar 25, 2020
Start date
Sep 30, 2020
Primary completion
Oct 5, 2021
Completion
Dec 28, 2021
Results posted
Nov 25, 2022
Last update
Nov 25, 2022

Study contacts

Mark Syms, MD
principal investigator · Arizona Hearing Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2022. You cannot join it, but the record below documents what was studied.

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