- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01671176
Wide Diameter Bone Anchored Implant Study
A Clinical Study of the Oticon Medical Ponto 4.5mm Wide Implant
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Bone-anchored hearing systems have been an amplification choice for conductive, mixed, and profound, unilateral, sensorineural hearing loss for over three decades. So far, about 75,000 patients worldwide have received this surgical intervention (bone-anchored hearing system), since its first successful implantation in 1977. In 2009, Oticon Medical, LLC launched its bone-anchored hearing system called Ponto. In just over two years, the Ponto has been successfully implanted in over 3,000 patients by leading otolaryngologists and neurotologists in 18 countries worldwide.
The Ponto implant has previously been available with a 3.75mm diameter and comes in two lengths: 3mm and 4mm. Anew Ponto implant that is 4.5mm wide in diameter is now available in both 3mm and 4mm lengths. This Wide Diameter implant is designed to maximize bone-to-implant contact area and enhance implant stability which can potentially allow loading of the sound processor as early as 3 weeks after surgery. The abutment screw incorporates external threads at the screw head to make it possible to connect a SmartPeg (Osstell, Goteborg, Sweden) for stability measurements. All Ponto implants have the same universal implant-abutment interface. Therefore, they are fully compatible with existing instruments and abutments. Two new countersinks have been developed for the new Ponto Wide Diameter implant. The drill size of the countersink is 3.80mm. It is marked with a "W" to separate them from existing drills. All products are CE-marked and cleared for the US market by the FDA.
Objectives The present study will attempt to show that the Ponto 4.5mm Wide Diameter implant has similar or better outcomes in terms of Quality of Life (QoL) benefit; implant extrusion and revision surgery when compared to the 3.75mm diameter implant. Secondary objectives to be studied will include adverse skin reactions, the feasibility of fitting the sound processor three weeks after surgical implantation, and investigation to see if the type of skin reactions observed following implantation could be related to the demographic data of subjects or the type of surgical technique used.
Study Design This study is a prospective, multicenter study of subjects' demographic and implant data. Subjects will be enrolled at two US sites.
Subject Population Twenty adult subjects 18 years or older will be included in the study from each participating partner site.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Florida
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Sarasota, Florida, United States, 34239
- Silverstein Institute
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Michigan
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Farmington Hills, Michigan, United States, 48833
- Michigan Ear Institute
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- conductive, mixed or single sided deafness
- 18 years of age or older
Exclusion Criteria:
- younger than 18 years of age
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Wide diameter bone anchored implant
Intervention: Implantation of a wide diameter bone anchored auditory implant either 3 or 4 mm in length, into the skull on the side of the ear where intervention is intended in order to restore hearing.
In the case of a conductive or mixed hearing loss, that side is chosen.
In patients with unilateral, profound sensori-neural hearing loss the implant is implanted on that side but the sound is transmitted to the side with the normal hearing ear via bone conduction stimulation.
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4.5 mm wide diameter bone anchored implant
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Holger's Scale
Time Frame: 1 week, 3 weeks, 6 weeks, 3 months, 6 months and 12 months
|
Holger's Scale is a 5 point that ranges from 0 - 4 scale that assesses skin reactions at the implant site where 0 means no reaction and 4 means excessive granulation, skin overgrowth, or scar formation requiring revision surgery
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1 week, 3 weeks, 6 weeks, 3 months, 6 months and 12 months
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Implant Stability as Measured by the Osstell Implant Stability Quotient in the Vertical and Horizontal Plane
Time Frame: At surgery, 1 week, 3 weeks, 6 weeks, 12 weeks, 6 months and 12 months
|
Presently, the recommendations to load the sound processor on a bone anchored implant is 3 months (for adults).
Using outcome measures, i.e., OSSTELL ISQ ranges from 0 -100 where 0 is least stable and 100 being the most stable.
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At surgery, 1 week, 3 weeks, 6 weeks, 12 weeks, 6 months and 12 months
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Jack Wazen, MD, Sarasota Ear Institute
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Wide04262012
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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