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G7 Freedom Constrained Vivacit-E Liners

Primary Purpose

Osteoarthritis, Hip, Rheumatoid Arthritis, Non-Union Fracture

Status
Not yet recruiting
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
Total Hip Arthroplasty with G7 Freedom Constrained Vivacit-E Liners
Sponsored by
Zimmer Biomet
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Osteoarthritis, Hip

Eligibility Criteria

18 Years - 80 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Patient is 18 to 80 years of age, inclusive
  • Patient is skeletally mature
  • Patient qualifies for unilateral total hip arthroplasty based on physical exam and medical history including at least one of the following:

    • Non-inflammatory degenerative joint disease, including osteoarthritis and avascular necrosis
    • Rheumatoid arthritis
    • High risk for dislocation
    • Undergoing revision hip arthroplasty
    • Correction of functional deformity
    • In need of treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques
  • Patient is willing and able to complete scheduled follow-up evaluations as described in the protocol and Informed Consent
  • Patient, or the patient's legally authorized representative, has participated in the Informed Consent process and is willing and able to sign an IRB approved informed consent

Exclusion Criteria:

  • Patient is septic, has an active infection or has osteomyelitis at the affected joint
  • Patient has significant osteoporosis as defined by treating surgeon
  • Patient has metabolic disorder(s) which may impair bone formation
  • Patient has osteomalacia
  • Patient has distant foci of infections which may spread to the implant site
  • Patient has rapid joint destruction, marked bone loss or bone resorption on pre-operative radiographs
  • Patient underwent contralateral THA within 3 months of planned index procedure or has a contralateral THA planned within 3 months of the index procedure
  • Patient is undergoing simultaneous bilateral THA
  • Patient has vascular insufficiency, muscular atrophy at the implant site or neuromuscular disease which might jeopardize the outcome of the surgery.
  • In the opinion of the investigator, patient has any concomitant disease which is likely to jeopardize the functioning or success of the implant
  • Patient is known to be pregnant
  • The patient is in the vulnerable population group, such as

    • a prisoner
    • a known alcohol or drug abuser
    • mentally incompetent or unable to understand what participation in this study entails

Sites / Locations

    Arms of the Study

    Arm 1

    Arm Type

    Experimental

    Arm Label

    Total Hip Arthroplasty Treatment Group

    Arm Description

    This study will enroll (implant) up to 202 hips in total according to the IFU and surgical technique. Of these, up to 135 will be revision hips and up to 67 will be primary hips. This is a dual cohort study (primary and revision); each subject will receive the G7 Acetabular System with the Freedom Constrained Vivacit-E bearing. To minimize potential bias and to maximize our ability to assess inter-site differences, each study site will target up to 27 primary hip arthroplasties and up to 54 revision hip arthroplasties (not exceed 81 implanted hips or 40% of total study population). Each site is encouraged to enroll (implant) both primary and revision subjects.

    Outcomes

    Primary Outcome Measures

    Survival of the study device
    Survival (whether or not it is still implanted in the subject) determined using Kaplan Meier method.

    Secondary Outcome Measures

    Incidence of treatment-emergent Adverse Events (safety)
    Safety is assessed by monitoring the frequency and incidence of all adverse events, with particular focus on those that may be related to the study device.
    Pain and Functional Performance - Modified Harris Hip Score
    The Harris Hip Score evaluates hip function, pain, mobility and daily activity impairment after hip replacement surgery. The ten items in the Harris hip score consist of answer choices, awarded a number of points. There are four domains evaluated, as follows: Pain - 1 item which scores between 0 and 44; Function - 7 items, scores are between 0 and 47; Deformity - 1 item which scores either 0 or 4; Range of motion - 1 item which scores between 0 and 5. The overall score varies between 0 and 100, where scores closer to 0 are suggestive of impaired hip function and scores closer to 100 indicate positive outcome. There are four categories of hip function status: <70: poor hip status; 70 - 79: fair hip status; 80 - 89: good hip status; 90 - 100: excellent hip status.
    Pain and Functional Performance - Oxford Hip Score
    "The Oxford Hip Score is patient-reported outcome instrument which contains 12 questions on activities of daily living that assess function and residual pain in patients undergoing total hip replacement surgery. Grading the Oxford Hip Score 0 to 19-May indicate severe hip arthritis... 20 to 29-May indicate moderate to severe hip arthritis... 30 to 39-May indicate mild to moderate hip arthritis... 40 to 48-May indicate satisfactory joint function..." Oxford Hip Score. (n.d.) Segen's Medical Dictionary. (2011). Retrieved August 19 2022 from https://medical-dictionary.thefreedictionary.com/Oxford+Hip+Score Each question is scored from 0 to 4 with 4 being the best outcome. This method, when summed, produces overall scores running from 0 to 48 with 48 being the best outcome. The overall score is reached by simply summing the scores received for individual questions. This results in a continuous score ranging from 0 (most severe symptoms) to 48 (least symptoms).
    Euroqol Patient Quality of life measured at 2 years follow-up (EQ-5D-5L)
    The EuroQol five dimensions questionnaire (EQ-5D-5L) is a five dimensional self-assessment that is comprised of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. These five dimensions can be used to index a subject's health utility on a scale of 0 to 1, where 0 is death and 1 is perfect health. The scoring rule for EQ-5D permits scores less than 0, implying that some health states may be worse than death. Note: no VAS measures will be obtained if completed by phone interview.
    Radiographic Performance evaluating radiolucency at 5 years follow-up
    X-rays will be evaluated for radiolucency lines to show the number of subjects with radiolucency. Radiolucency refers to structures that are less dense and permit the x-ray beam to pass through them. Radiolucent structures appear dark or black in the radiographic image.
    Radiographic Performance evaluating osteolysis at 5 years follow-up
    X-rays will be evaluated for osteolysis to show the number of subjects with osteolysis. Osteolysis is a progressive condition where bone tissue is destroyed. In this process, bones lose minerals (mostly calcium), softens, degenerates and become weaker.
    Radiographic Performance evaluating atrophy/hypertrophy at 5 years follow-up
    X-rays will be evaluated for muscular atrophy/hypertrophy. An increase in total mass of a muscle is referred to as as hypertrophy, whereas a decrease in total mass of a muscle is referred to as atrophy.
    Radiographic Performance evaluating component migration at 5 years follow-up
    X-rays will be evaluated for component migration to show the number of subjects with migration. Component migration refers to the presence of the device component gradually moving anteriorly, posteriorly, superiorly, or inferiorly in relation to original placement.
    Radiographic Performance evaluating device fracture at 5 years follow-up
    Radiographs will be evaluated (up to 5 years) for evidence of device fracture.
    Radiographic Performance evaluating heterotopic ossification at 5 years follow-up
    X-rays will be evaluated for heterotopic ossification to show the number of subjects with heterotopic ossification. Heterotopic ossification refers to the presence of bone in soft tissue where bone normally does not exist (extraskeletal bone).

    Full Information

    First Posted
    October 10, 2022
    Last Updated
    October 17, 2022
    Sponsor
    Zimmer Biomet
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    1. Study Identification

    Unique Protocol Identification Number
    NCT05587244
    Brief Title
    G7 Freedom Constrained Vivacit-E Liners
    Official Title
    Multicenter, Prospective Post-Market Clinical Follow-Up Study of the G7® Freedom Constrained Vivacit-E® Liners
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    October 2022
    Overall Recruitment Status
    Not yet recruiting
    Study Start Date
    December 2022 (Anticipated)
    Primary Completion Date
    December 2037 (Anticipated)
    Study Completion Date
    December 2038 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Zimmer Biomet

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    No
    Studies a U.S. FDA-regulated Device Product
    Yes
    Product Manufactured in and Exported from the U.S.
    Yes
    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The main objectives of this study are to confirm the long-term safety, performance, and clinical benefits of the G7 Freedom Constrained Vivacit-E Acetabular Liners in primary and revision total hip arthroplasty.
    Detailed Description
    The main objectives of this study are to confirm the long-term safety, performance, and clinical benefits of the G7 Freedom Constrained Vivacit-E Acetabular Liners in primary and revision total hip arthroplasty. The primary endpoint is defined by the survival of the implant system at 10 years, which is based on removal of the study device and will be determined using the Kaplan-Meier method. The safety of the system will be assessed by monitoring the frequency and incidence of adverse events. Relation of the events to the implant, instrumentation and/or procedure should be specified. The secondary endpoints are the assessment of performance and clinical benefits by recording patient-reported clinical outcomes measures (PROMs) as well as radiographic outcomes (if available). The G7 Vivacit-E Freedom Constrained Liner is indicated for use (per IFU) as a component of a total hip prosthesis in primary and revision patients at high risk of dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease, or intraoperative instability, and for whom all other options to constrained acetabular components have been considered.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Osteoarthritis, Hip, Rheumatoid Arthritis, Non-Union Fracture, Trochanteric Fractures, Femoral Neck Fractures, Avascular Necrosis, Dislocation, Hip

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Not Applicable
    Interventional Study Model
    Single Group Assignment
    Model Description
    Multicenter, Prospective, Non-controlled, Non-randomized, Consecutive series of patients, two cohort study
    Masking
    None (Open Label)
    Allocation
    N/A
    Enrollment
    202 (Anticipated)

    8. Arms, Groups, and Interventions

    Arm Title
    Total Hip Arthroplasty Treatment Group
    Arm Type
    Experimental
    Arm Description
    This study will enroll (implant) up to 202 hips in total according to the IFU and surgical technique. Of these, up to 135 will be revision hips and up to 67 will be primary hips. This is a dual cohort study (primary and revision); each subject will receive the G7 Acetabular System with the Freedom Constrained Vivacit-E bearing. To minimize potential bias and to maximize our ability to assess inter-site differences, each study site will target up to 27 primary hip arthroplasties and up to 54 revision hip arthroplasties (not exceed 81 implanted hips or 40% of total study population). Each site is encouraged to enroll (implant) both primary and revision subjects.
    Intervention Type
    Device
    Intervention Name(s)
    Total Hip Arthroplasty with G7 Freedom Constrained Vivacit-E Liners
    Intervention Description
    Primary and/or Revision total hip arthroplasty with the G7 Freedom Constrained Vivacit-E Liners
    Primary Outcome Measure Information:
    Title
    Survival of the study device
    Description
    Survival (whether or not it is still implanted in the subject) determined using Kaplan Meier method.
    Time Frame
    10 years
    Secondary Outcome Measure Information:
    Title
    Incidence of treatment-emergent Adverse Events (safety)
    Description
    Safety is assessed by monitoring the frequency and incidence of all adverse events, with particular focus on those that may be related to the study device.
    Time Frame
    10 years
    Title
    Pain and Functional Performance - Modified Harris Hip Score
    Description
    The Harris Hip Score evaluates hip function, pain, mobility and daily activity impairment after hip replacement surgery. The ten items in the Harris hip score consist of answer choices, awarded a number of points. There are four domains evaluated, as follows: Pain - 1 item which scores between 0 and 44; Function - 7 items, scores are between 0 and 47; Deformity - 1 item which scores either 0 or 4; Range of motion - 1 item which scores between 0 and 5. The overall score varies between 0 and 100, where scores closer to 0 are suggestive of impaired hip function and scores closer to 100 indicate positive outcome. There are four categories of hip function status: <70: poor hip status; 70 - 79: fair hip status; 80 - 89: good hip status; 90 - 100: excellent hip status.
    Time Frame
    10 years
    Title
    Pain and Functional Performance - Oxford Hip Score
    Description
    "The Oxford Hip Score is patient-reported outcome instrument which contains 12 questions on activities of daily living that assess function and residual pain in patients undergoing total hip replacement surgery. Grading the Oxford Hip Score 0 to 19-May indicate severe hip arthritis... 20 to 29-May indicate moderate to severe hip arthritis... 30 to 39-May indicate mild to moderate hip arthritis... 40 to 48-May indicate satisfactory joint function..." Oxford Hip Score. (n.d.) Segen's Medical Dictionary. (2011). Retrieved August 19 2022 from https://medical-dictionary.thefreedictionary.com/Oxford+Hip+Score Each question is scored from 0 to 4 with 4 being the best outcome. This method, when summed, produces overall scores running from 0 to 48 with 48 being the best outcome. The overall score is reached by simply summing the scores received for individual questions. This results in a continuous score ranging from 0 (most severe symptoms) to 48 (least symptoms).
    Time Frame
    10 years
    Title
    Euroqol Patient Quality of life measured at 2 years follow-up (EQ-5D-5L)
    Description
    The EuroQol five dimensions questionnaire (EQ-5D-5L) is a five dimensional self-assessment that is comprised of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. These five dimensions can be used to index a subject's health utility on a scale of 0 to 1, where 0 is death and 1 is perfect health. The scoring rule for EQ-5D permits scores less than 0, implying that some health states may be worse than death. Note: no VAS measures will be obtained if completed by phone interview.
    Time Frame
    10 Years
    Title
    Radiographic Performance evaluating radiolucency at 5 years follow-up
    Description
    X-rays will be evaluated for radiolucency lines to show the number of subjects with radiolucency. Radiolucency refers to structures that are less dense and permit the x-ray beam to pass through them. Radiolucent structures appear dark or black in the radiographic image.
    Time Frame
    5 Years
    Title
    Radiographic Performance evaluating osteolysis at 5 years follow-up
    Description
    X-rays will be evaluated for osteolysis to show the number of subjects with osteolysis. Osteolysis is a progressive condition where bone tissue is destroyed. In this process, bones lose minerals (mostly calcium), softens, degenerates and become weaker.
    Time Frame
    5 Years
    Title
    Radiographic Performance evaluating atrophy/hypertrophy at 5 years follow-up
    Description
    X-rays will be evaluated for muscular atrophy/hypertrophy. An increase in total mass of a muscle is referred to as as hypertrophy, whereas a decrease in total mass of a muscle is referred to as atrophy.
    Time Frame
    5 Years
    Title
    Radiographic Performance evaluating component migration at 5 years follow-up
    Description
    X-rays will be evaluated for component migration to show the number of subjects with migration. Component migration refers to the presence of the device component gradually moving anteriorly, posteriorly, superiorly, or inferiorly in relation to original placement.
    Time Frame
    5 Years
    Title
    Radiographic Performance evaluating device fracture at 5 years follow-up
    Description
    Radiographs will be evaluated (up to 5 years) for evidence of device fracture.
    Time Frame
    5 Years
    Title
    Radiographic Performance evaluating heterotopic ossification at 5 years follow-up
    Description
    X-rays will be evaluated for heterotopic ossification to show the number of subjects with heterotopic ossification. Heterotopic ossification refers to the presence of bone in soft tissue where bone normally does not exist (extraskeletal bone).
    Time Frame
    5 Years

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    80 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Patient is 18 to 80 years of age, inclusive Patient is skeletally mature Patient qualifies for unilateral total hip arthroplasty based on physical exam and medical history including at least one of the following: Non-inflammatory degenerative joint disease, including osteoarthritis and avascular necrosis Rheumatoid arthritis High risk for dislocation Undergoing revision hip arthroplasty Correction of functional deformity In need of treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques Patient is willing and able to complete scheduled follow-up evaluations as described in the protocol and Informed Consent Patient, or the patient's legally authorized representative, has participated in the Informed Consent process and is willing and able to sign an IRB approved informed consent Exclusion Criteria: Patient is septic, has an active infection or has osteomyelitis at the affected joint Patient has significant osteoporosis as defined by treating surgeon Patient has metabolic disorder(s) which may impair bone formation Patient has osteomalacia Patient has distant foci of infections which may spread to the implant site Patient has rapid joint destruction, marked bone loss or bone resorption on pre-operative radiographs Patient underwent contralateral THA within 3 months of planned index procedure or has a contralateral THA planned within 3 months of the index procedure Patient is undergoing simultaneous bilateral THA Patient has vascular insufficiency, muscular atrophy at the implant site or neuromuscular disease which might jeopardize the outcome of the surgery. In the opinion of the investigator, patient has any concomitant disease which is likely to jeopardize the functioning or success of the implant Patient is known to be pregnant The patient is in the vulnerable population group, such as a prisoner a known alcohol or drug abuser mentally incompetent or unable to understand what participation in this study entails
    Central Contact Person:
    First Name & Middle Initial & Last Name or Official Title & Degree
    Darin A Fawley, MA
    Phone
    5743067230
    Email
    darin.fawley@zimmerbiomet.com
    First Name & Middle Initial & Last Name or Official Title & Degree
    Ryan Boylan, MBA
    Phone
    574-371-9784
    Email
    ryan.boylan@zimmerbiomet.com
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Hillary Overholser
    Organizational Affiliation
    Zimmer Biomet
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Plan to Share IPD
    No

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