Post Market Clinical Evaluation of Gamma 4

NCT ID: NCT05523635

Last Updated: 2025-03-21

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Total Enrollment: 100 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2023-03-06
• Study Completion Date: 2025-10-31

Brief Summary

This is a prospective, multi-center, non-randomized, post-market clinical investigation of the Gamma 4 System. Neither subjects nor investigators are blinded to treatment.

It is anticipated that a total of 100 subjects will be enrolled at five sites. Total duration of enrollment, 12 month follow-up and analysis is expected to take approximately 30 months. The clinical investigation has been designed to follow the surgeon's standard of care for subjects treated with a cephalomedullary nail for femoral fractures or and deformities, in addition to a 12 month follow-up visit.

The primary endpoint of this clinical investigation is demonstration of bone consolidation by 12 months.

Detailed Description

The objective of this clinical investigation is to demonstrate the safety and efficacy/performance of the Gamma 4 System. Enrolled subjects will undergo an initial assessment, with follow-up evaluations at 3 Months, 6 Months, and 12 Months after the index procedure.

The primary endpoint of this clinical investigation is demonstration of bone consolidation by 12 months, as measured by the Investigator.

Secondary endpoints will include safety through reporting the incidence of device related intra-operative and post-operative adverse events by 12 months, patient reported outcome measures (SF-35v2 and Modified Harris Hip Score), and other specific health outcomes.

Efficacy will be assessed through non-inferiority of bone consolidation proportion compared to the pooled literature control, as well as the SF-36 score results by 12 months.

Conditions

Femoral Fracture

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Gamma 4

Subjects in the clinical investigation will undergo placement of the Gamma4 Nailing System, according to the approved Instructions for Use and Operative Technique Manual

Gamma4 Nailing System

Intervention Type: DEVICE

The Gamma4 Nailing System is is indicated for the treatment of stable and unstable fractures as well as for stabilization of bones and correction of bone deformities in the intracapsular, trochanteric, subtrochanteric and shaft regions of the femur (including osteoporotic and osteopenic bone).

Interventions

Gamma4 Nailing System

The Gamma4 Nailing System is is indicated for the treatment of stable and unstable fractures as well as for stabilization of bones and correction of bone deformities in the intracapsular, trochanteric, subtrochanteric and shaft regions of the femur (including osteoporotic and osteopenic bone).

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Subject is a male or non-pregnant female age 18 years or older at the time of surgery;
• Subject is willing and able to give written informed consent and comply with the requirements of this Clinical Investigation Plan; and
• Subject has or is intended to be treated with the Gamma 4 System in accordance with its legally approved Indication for Use (IFU).

Indication For Use in the United States and Canada:

The Gamma4 System is indicated for the treatment of stable and unstable fractures as well as for stabilization of bones and correction of bone deformities in the intracapsular, trochanteric, subtrochanteric and shaft regions of the femur (including osteoporotic and osteopenic bone).

Exclusion Criteria

• Subject is currently enrolled in or plans to enroll in any concurrent drug and/or device clinical investigation that, in the opinion of the Investigator, may confound results
• Subject who is, or will be, inaccessible for follow-up
• Per the Investigator, the subject is in poor general health or undergoing any concurrent disease that would place the subject in excessive risk to surgery (i.e., significant circulatory problems, cardiac disease).
• Any active or suspected latent infection or marked local inflammation in or about the affected area
• Compromised vascularity that would inhibit adequate blood supply to the fracture or the operative site
• Bone stock compromised by disease, infection or prior implantation that cannot provide adequate support and/or fixation of the devices
• Material sensitivity, documented or suspected
• Patients having inadequate tissue coverage over the operative site
• Implant utilization that would interfere with anatomical structures or physiological performance
• Any mental or neuromuscular disorder which would create an unacceptable risk of fixation failure or complications in postoperative care
• Other medical or surgical conditions which would preclude the potential benefit of surgery.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Stryker Trauma and Extremities

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Rebecca Gibson

Role: STUDY_DIRECTOR

Stryker Trauma and Extremities

Locations

William Beaumont Hospital

Royal Oak, Michigan, United States

MetroHealth

Cleveland, Ohio, United States

UT Health

San Antonio, Texas, United States

Inova Health Care Services

Falls Church, Virginia, United States

SSM Health - Madison

Madison, Wisconsin, United States

Countries

United States

Other Identifiers

TA-01-2022

Identifier Type: -

Identifier Source: org_study_id