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A clinical trial for marketing approval about bone-conduction hearing system of HangZhou Sophonotron

A clinical trial to evaluate the safety and efficacy of bone-conduction hearing system in patients with conductive or mixed deafness by prospective, multicenter, open labeling and single group target value method

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-ONC-17013551
Enrollment
Unknown
Registered
2017-11-27
Start date
2017-12-01
Completion date
Unknown
Last updated
2017-12-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

conductive or mixed deafness

Interventions

Single-arm Group: Treatment:BHS implantation

Sponsors

Ophthalmology and ENT Hospital affiliated to Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
6 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. patients aged 6 years and above; 2. patients with conductive or mixed deafness, which for the ear of applicable side, it's =45 dbHL that the average value of pure tone bone-conduction (PTA) test under 0.5, 1, 2, 3 Hz, while it's =30 dB that the difference between bone-conduction PTA and air-conduction PTA; 3. patients who are diagnosed by the physician to be suitable to wear the bone-conduction hearing system (BHS); 4. patients who will participate in this trial, and they themselves or their legal guardian volunteer to sign the inform consent form (ICF); 5. patients who could communicate well with the investigators, and be able to comply with the requirement of this trial.

Exclusion criteria

Exclusion criteria: 1. a material allergy to the implant; 2. combined with surgical contraindication or inability to tolerate surgery; 3. psychosis, autistic patients; 4. pregnant and lactating women; 5. participants in other clinical studies who did not reach the primary endpoint; 6. To be considered any reason that not suitable for the research.

Design outcomes

Primary

MeasureTime frame
Combined effectiveness of SRT and SFA via 0 degree;

Secondary

MeasureTime frame
Effectiveness of SRT via 90 degree;Effectiveness of SRT via 270 degree;Stability of BHS;Rate of successful implantation of BHS;

Countries

China

Contacts

Public ContactDr. Zhang Tianyu

Ophthalmology and ENT Hospital affiliated to Fudan University

ty.zhang2006@aliyun.com+86 021-64377134

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026