NCT05921578

Brief Summary

Our studies will systematically investigate and establish evidence on whether Cone-beam computed tomography (CBCT) of the temporal bone could be used in the diagnosis and treatment of otosclerosis and in the post-operative follow-up after stapedotomy.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 17, 2023

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

June 6, 2023

Completed
21 days until next milestone

First Posted

Study publicly available on registry

June 27, 2023

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

April 4, 2025

Status Verified

April 1, 2025

Enrollment Period

2.5 years

First QC Date

June 6, 2023

Last Update Submit

April 1, 2025

Conditions

Keywords

otosclerosisstapedotomycone beam CT

Outcome Measures

Primary Outcomes (5)

  • Diagnostic precision of CBCT of the temporal bone in diagnosing otosclerosis.

    The diagnostic precision will be established, i.e., the sensibility and specificity for our scanning protocols.

    Per-operative

  • Clinical decision-making in the diagnosis of suspected otosclerosis

    The proportion of patients where CBCT assists in the decision clinical decision making of otosclerosis.

    Baseline

  • Prothesis placement (pre-operative planning)

    Pre-operative CBCT based planning on the prothesis placement at surgery.

    12 months

  • Post-operative follow-up: patient reported hearing

    The effect of pre-operative planning on the patient reported hearing at follow-up.

    12 months

  • Post-operative follow-up: measured hearing

    The effect of pre-operative planning on the measured hearing (audiometry) at follow-up.

    12 months

Study Arms (2)

Routine diagnostic workup

NO INTERVENTION

Routine diagnostic workup + pre-operative CBCT-based planning

EXPERIMENTAL
Diagnostic Test: Pre-operative planning based on CBCT

Interventions

Pre-operative planning based on CBCT

Routine diagnostic workup + pre-operative CBCT-based planning

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults (\>18 years of age).
  • Referred to our department suspected for otosclerosis.
  • Consents to participation in the project.

You may not qualify if:

  • A history of surgical treatment for otosclerosis (ipsilateral ear).
  • A history of tympanoplasty type 2-4 (ipsilateral ear).
  • Other competing middle-ear diseases (ipsilateral ear).
  • \- Intraoperative findings not supporting otosclerosis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rigshospitalet

Copenhagen, Denmark

RECRUITING

MeSH Terms

Conditions

Otosclerosis

Condition Hierarchy (Ancestors)

Ear DiseasesOtorhinolaryngologic Diseases

Central Study Contacts

Steven AW Andersen

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D., PhD, Senior Researcher

Study Record Dates

First Submitted

June 6, 2023

First Posted

June 27, 2023

Study Start

May 17, 2023

Primary Completion

December 1, 2025

Study Completion

December 1, 2025

Last Updated

April 4, 2025

Record last verified: 2025-04

Data Sharing

IPD Sharing
Will not share

Locations