Cochlear Implantation After Gamma Knife Radiosurgery with... | NCT03745534

Studies
Cochlear Implantation After Gamma Knife Radiosurgery with EABR and Correlation to Postoperative Hearing Results - a Pilot Study

NCT03745534

Sponsor

Christoph Arnoldner

Status

Recruiting

Last Update Posted

Nov 25, 2024Actual

Enrollment

8Estimated

Phase

Not provided

Conditions

Vestibular Schwannoma
Hearing Loss

Interventions

eABR

Countries

Austria

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Nov 2024

Overall Recruitment Status or Expanded Access Status

Recruiting

Last Known Status

Not provided

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Aug 1, 2018Actual

Primary Completion Date

Jul 31, 2026Estimated

Completion Date

Oct 30, 2026Estimated

First Submitted Date

Nov 3, 2018

First Submission Date that Met QC Criteria

Nov 16, 2018

First Posted Date

Nov 19, 2018Actual

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Nov 21, 2024

Last Update Posted Date

Nov 25, 2024Actual

Oversight Module

Has Data Monitoring Committee (DMC)

Is FDA Regulated Drug

Is FDA Regulated Device

Is Unapproved Device

Not provided

Pediatric Postmarket Surveillance of a Device Product

Not provided

Product Exported from US

FDAAA801 Violation

Not provided

Description Module

Brief Summary

Patients undergoing cochlear implantation after radio surgery for vestibular schwannoma will be included in the study. Patients will undergo preoperative and intraoperative eABR measurement. Correlations to postoperative hearing results will be drawn.

Detailed Description

Patients treated with radio surgery for vestibular schwannoma often suffer from hearing loss. Especially when the contralateral side has progressive hearing loss assessment if cochlear implantation is feasible, should be carried out. Patients undergo extensive audiometric testing. Additionally, patients will undergo preoperative eABR. Intraoperatively eABR is carried out and cochlear implantation is performed. The eABR results will be correlated with postoperative hearing. EABR measurements are not part of the study. The results of eBAR will be categorized in three groups (good response, weak response and no response). The eABR results will then be correlated to speech understanding with cochlear implants measured with Freiburger monosyllables test.

Design Module

Study Type

Observational

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Target Follow-Up Duration

Not provided

Phases

Not provided

Interventional Study Design

Allocation

Not provided

Intervention Model

Biospecimen

No data available

No data is available for this block.

Enrollment

8Estimated

Name	Type	Description	Arm Group Labels	Other Names
eABR	Other	eABR

Outcomes Module

Primary Outcomes

Measure	Description	Time Frame
eABR correlation	eABR is correlated with postoperative hearing results eABR will be divided in three categories - good response, weak response, no response Hearing results will be measured with speech understanding in Freiburg monosyllables word test which is measured in % of monosyllables understanding at 65 and 80dB	2 years

Secondary Outcomes

Not provided

Other Outcomes

Not provided

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Patients who have undergone radio surgery for vestibular schwannoma
Patients wanting cochlear implantation for hearing rehabilitation

Exclusion Criteria:

Patients not wanting to participate in the study

Accepts Healthy Volunteers

Sex

All

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

18 Years

Maximum Age

Not provided

Standard Ages

AdultOlder Adult

Study Population

Patients after radio surgery for vestibular schwannoma undergoing cochlear implantation

Sampling Method

Non-Probability Sample

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Not provided

Locations

Facility	Status	City	State	ZIP	Country	Contacts
AKH; MUW	Recruiting	Vienna	State of Vienna	1090	Austria

IPD Sharing Statement Module

Plan to Share IPD

Description

Not provided

Types

Not provided

Time Frame

Not provided

Access Criteria

Not provided

URL

Not provided

Condition Browse Module

MeSH Terms

ID	Term
D009464	Neuroma, Acoustic
D034381	Hearing Loss

Ancestor Terms

ID	Term
D009442	Neurilemmoma
D018358	Neuroendocrine Tumors
D017599	Neuroectodermal Tumors
D009373	Neoplasms, Germ Cell and Embryonal

Browse Leaves

Not provided

Browse Branches

Not provided