Retrospective Study Chimaera Long Nail in Adult Patient
Observational Retrospective Study to Assess the Clinical Benefit and Safety Profile of the Intramedullary Nail CHIMAERA in Adult Patient Who Have Suffered Pertrochanteric, Intertrochanteric and Subtrochanteric Fractures of the Femur in Daily Practice: CHIMAERA Study
1 other identifier
observational
44
1 country
2
Brief Summary
The CHIMERA study intends to evaluate the clinical benefits of the study medical device in the standard clinical practice.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Nov 2023
2 active sites
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
November 27, 2023
CompletedFirst Submitted
Initial submission to the registry
February 22, 2024
CompletedFirst Posted
Study publicly available on registry
February 29, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 17, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 18, 2024
CompletedResults Posted
Study results publicly available
August 7, 2025
CompletedSeptember 15, 2025
September 1, 2025
1.1 years
February 22, 2024
July 22, 2025
September 2, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Percent of Patients in Which Bone Union Has Been Achieved
The clinical benefit of CHIMAERATM will be assessed by the percentage of patients in which bone union has been achieved within 12 months from the nail implant.
12 months
Secondary Outcomes (1)
Percent of Patients That Required a Reoperation
6 months
Study Arms (1)
patients with femur fractures
adult patients with pertrochanteric, intertrochanteric and subtrochanteric fractures of the femur
Interventions
The CHIMAERATM, is an internal fixation system intended intended for insertion into the medullary canal of a femur in individuals suffering from stable and unstable pertrochanteric, intertrochanteric and subtrochanteric fractures of the femur alone or when these fractures occur in combination with shaft fractures extending distally to a point approximately 10cm proximal to the intercondylar notch.
Eligibility Criteria
Adults suffering from pertrochanteric, intertrochanteric and subtrochanteric fractures of the femur, where the usage of Orthofix® Chimaera Hip Fracture SystemTM (from now on CHIMAERATM) was part of the normal clinical practice.
You may qualify if:
- The patient expressed his willingness to participate in the Study by signing and dating informed consent.
- Patients who had a regular indication for surgical intervention with the long variant of CHIMAERATM according to the manufacturer's IFU.
- Patients equal or older than 18 years at the time of surgery.
- Patients who underwent surgery performed with CHIMAERATM.
- Patients with clinical data registered in her/his medical records sufficient to assess the safety and efficacy endpoints of the study.
You may not qualify if:
- Patient who had/has a medical condition that is a contraindication according to the manufacturer's IFU leaflet.
- Patient has been diagnosed with bilateral proximal femur fractures.
- Patient who needed the application of, or ha already in-situ a concomitant not permitted device which cannot be safely removed.
- Patient with other concurrent medical or non-medical condition that in the opinion of the participating investigator may prevent participation or otherwise render the patient ineligible for the study.
- The patient is participating in other clinical studies, or he/she has participated in other clinical studies in the 3 months prior signing the informed consent .
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Orthofix s.r.l.lead
Study Sites (2)
AORN Sant'Anna e San Sebastiano
Caserta, CE, 81100, Italy
Craeggi Hospital
Florence, FI, 50134, Italy
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Clinical Program Manager
- Organization
- Orthofix
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 22, 2024
First Posted
February 29, 2024
Study Start
November 27, 2023
Primary Completion
December 17, 2024
Study Completion
December 18, 2024
Last Updated
September 15, 2025
Results First Posted
August 7, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share