RECRUITING

BioPoly® Partial Resurfacing Knee Implant IDE

Conditions

Knee Pain Chronic Knee Osteoarthritis Cartilage Damage Cartilage Defects of the Knee Cartilage or Osteochondral Defects in the Knee Cartilage Lesion articular cartilage focal cartilage defect cartilage defect

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The goal of this randomized controlled clinical trial is to demonstrate the safety and effectiveness of the BioPoly® Partial Resurfacing Knee Implant for the treatment of cartilage defects of the distal femur in adult patients with knee pain and symptoms who are candidates for surgical intervention of the knee compared to outcomes for the control group. The primary effectiveness endpoint is Month 24 composite clinical success (CCS) defined by: * no secondary surgical intervention (SSI) and * an improvement from baseline in the Knee injury and Osteoarthritis Outcome Score (KOOS) total score (scaled 0 to 100) of at least 10 points. Researchers will compare the CCS for the investigational device group to a control group receiving the standard of care, either microfracture or debridement). Subjects randomized to the investigational group will receive the BioPoly Knee device and those randomized to the control group will receive the current standard of care, either microfracture or debridement.

Official Title

Pivotal, Prospective, Randomized, Controlled, Multicenter Clinical Trial of BioPoly® Partial Resurfacing Knee Implant for Treatment of Focal Cartilage Lesions of the Distal Femur

Quick Facts

Study Start:2025-03-17

Study Completion:2028-12

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT06915363

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:30 Years to 65 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:No

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
1. Patient is between 30 and 65 years of age25. 2. KOOS quality of life score ≤ 60. 3. In the opinion of the Investigator, the patient has the understanding and willingness to comply with all study requirements including the Post-Operative rehabilitation and follow-up protocol. 4. Patient has cartilage lesion that has failed non-surgical conservative therapy (e,g, anti-inflammatory (NSAID), viscosupplementation, steroid injection, physical therapy, or activity modification) after at least 2 months of beginning the therapy or failed surgical conservative therapy (e.g. debridement/lavage, marrow stimulation, or alignment high tibial osteotomy) that was performed at least 12 months ago in the index knee and is a candidate for surgical intervention. 5. Patient has cartilage lesion located in the femoral condyle or trochlear facet. 6. Patient has lesion(s) classified as ICRS grade 2, 3 or 4. 7. Patient's lesion size may not exceed 3.1 cm2 and must be circumscribed by a 1.5 cm or 2.0 cm diameter circle, or 1.5 cm (M-L) by 2.4 cm (A-P) oval of normal or nearly normal (ICRS grade 0 or 1) cartilage, with an overall depth less than 4mm from the articulating surface. 8. Patient has subchondral bone quality that is non-osteoporotic and is sufficient to support the implant. The quality of bone will be assessed by the surgeon intraoperatively with a surgical instrument such as an awl.	1. Patient has body mass index (BMI) ≥ 35. 2. Patient has autoimmune arthritis, as diagnosed by Investigator. 3. Patient has advanced degenerative osteoarthritis in index knee (Kellgren-Lawrence Grade 4 and/or diagnosed intraoperatively). 4. Contralateral knee is known to have symptomatic cartilage, meniscal, or ligamentous lesions, generalized osteoarthritis, or requires surgery. 5. Patient has gout, by Investigator diagnosis or patient-reported history within last 12 months. 6. Patient has a cartilage lesion that is being treated with a non-surgical conservative therapy (e,g, anti-inflammatory (NSAID), viscosupplementation, steroid injection, physical therapy, or activity modification) and it has been \< 2 months since beginning treatment or the patient's cartilage lesion has failed surgical therapy (e.g. debridement/lavage, marrow stimulation, alignment (high tibial osteotomy)) in the index knee and it has been \< 12 months since the surgical treatment. 7. Patient has a cartilage lesion that is being treated that has failed ACI, OATS or Allograft treatment. 8. Patient has malalignment of the index knee (\>5 degrees weight bearing varus or valgus). 9. Patient has bipolar articular cartilage involvement (or kissing lesions) of the ipsilateral compartment (i.e. greater than ICRS Grade 2 on the opposing articular surface) in the index knee. 10. Patient has uncorrected ligamentous instability (good joint stability in the index joint with a Grade 1 Lachman or less, no pivot shift for ACL insufficiency and no posterior translation of more than grade 1; no deficits in flexion or extension of \> 10 degrees compared to contralateral knee) in the index knee. 11. Patient has undergone a total meniscectomy of index knee. 12. Patient has undergone patellofemoral arthroplasty of the index knee 13. Patient currently reports or has a documented history of uncontrolled diabetes. 14. Patient currently has any condition, therapy, or medication known to impair bone healing. 15. Patient has had an active systemic infection or joint infection in index knee over the last 12 months. 16. Patient has an allergy to titanium alloy (Ti-6Al-4V), ultrahigh molecular weight polyethylene (UHMWPE), or hyaluronan/ hyaluronic acid (HA). 17. Patient is pregnant or is planning to become pregnant (for female patients only) at any point during the duration of the study. 18. Patient has legal involvement or any other issue that would hinder completion of the two-year follow-up period. 19. Patient is participating in other studies and/or receiving any other simultaneous therapy in index knee. 20. Patient has an uncorrected tear of the meniscus of the index knee. (Partial meniscectomy that retains \>50% of the meniscus is allowed prior to or concurrently with the cartilage treatment procedure. Meniscus suture repair is allowed prior to or concurrently with the cartilage treatment procedure if \>50% of the functional meniscus remains.). 21. Patient has an additional cartilage lesion(s) (ICRS Grade 3 or 4) in the index knee, located on the patella, trochlea, tibia, or non-weight bearing area of index condyle that requires treatment. 22. More than one implant is required to accommodate defect in the index knee. 23. Patient has inadequate bone stock (e.g., cysts, osteoporosis) underlying the lesion site as determined intra-operatively by the investigator 1. As determined by the investigator through use of an awl or a similar instrument to determine if the bone quality is insufficient to support the BioPoly device. 2. If the cause of inadequate bone stock is due to cysts or to the boney portion of an osteochondral lesion being excessive, then the investigator may opt to fix the implant with cement rather than exclude the patient for inadequate bone stock. 24. Patients with osteoporosis, osteopenia, Paget's disease, osteomalacia or any other metabolic bone disease; a. Osteoporosis is defined as Simple Calculated Osteoporosis Risk Estimation (SCORE) above 6 and DXA T-score \< -2.5 or QCT T-score \< 80mg/cubic cm. History of a fragility fracture requires that a DXA scan or QCT scan is completed

Inclusion Criteria

Exclusion Criteria

1. Patient is between 30 and 65 years of age25.
2. KOOS quality of life score ≤ 60.
3. In the opinion of the Investigator, the patient has the understanding and willingness to comply with all study requirements including the Post-Operative rehabilitation and follow-up protocol.
4. Patient has cartilage lesion that has failed non-surgical conservative therapy (e,g, anti-inflammatory (NSAID), viscosupplementation, steroid injection, physical therapy, or activity modification) after at least 2 months of beginning the therapy or failed surgical conservative therapy (e.g. debridement/lavage, marrow stimulation, or alignment high tibial osteotomy) that was performed at least 12 months ago in the index knee and is a candidate for surgical intervention.
5. Patient has cartilage lesion located in the femoral condyle or trochlear facet.
6. Patient has lesion(s) classified as ICRS grade 2, 3 or 4.
7. Patient's lesion size may not exceed 3.1 cm2 and must be circumscribed by a 1.5 cm or 2.0 cm diameter circle, or 1.5 cm (M-L) by 2.4 cm (A-P) oval of normal or nearly normal (ICRS grade 0 or 1) cartilage, with an overall depth less than 4mm from the articulating surface.
8. Patient has subchondral bone quality that is non-osteoporotic and is sufficient to support the implant. The quality of bone will be assessed by the surgeon intraoperatively with a surgical instrument such as an awl.

1. Patient has body mass index (BMI) ≥ 35.
2. Patient has autoimmune arthritis, as diagnosed by Investigator.
3. Patient has advanced degenerative osteoarthritis in index knee (Kellgren-Lawrence Grade 4 and/or diagnosed intraoperatively).
4. Contralateral knee is known to have symptomatic cartilage, meniscal, or ligamentous lesions, generalized osteoarthritis, or requires surgery.
5. Patient has gout, by Investigator diagnosis or patient-reported history within last 12 months.
6. Patient has a cartilage lesion that is being treated with a non-surgical conservative therapy (e,g, anti-inflammatory (NSAID), viscosupplementation, steroid injection, physical therapy, or activity modification) and it has been \< 2 months since beginning treatment or the patient's cartilage lesion has failed surgical therapy (e.g. debridement/lavage, marrow stimulation, alignment (high tibial osteotomy)) in the index knee and it has been \< 12 months since the surgical treatment.
7. Patient has a cartilage lesion that is being treated that has failed ACI, OATS or Allograft treatment.
8. Patient has malalignment of the index knee (\>5 degrees weight bearing varus or valgus).
9. Patient has bipolar articular cartilage involvement (or kissing lesions) of the ipsilateral compartment (i.e. greater than ICRS Grade 2 on the opposing articular surface) in the index knee.
10. Patient has uncorrected ligamentous instability (good joint stability in the index joint with a Grade 1 Lachman or less, no pivot shift for ACL insufficiency and no posterior translation of more than grade 1; no deficits in flexion or extension of \> 10 degrees compared to contralateral knee) in the index knee.
11. Patient has undergone a total meniscectomy of index knee.
12. Patient has undergone patellofemoral arthroplasty of the index knee
13. Patient currently reports or has a documented history of uncontrolled diabetes.
14. Patient currently has any condition, therapy, or medication known to impair bone healing.
15. Patient has had an active systemic infection or joint infection in index knee over the last 12 months.
16. Patient has an allergy to titanium alloy (Ti-6Al-4V), ultrahigh molecular weight polyethylene (UHMWPE), or hyaluronan/ hyaluronic acid (HA).
17. Patient is pregnant or is planning to become pregnant (for female patients only) at any point during the duration of the study.
18. Patient has legal involvement or any other issue that would hinder completion of the two-year follow-up period.
19. Patient is participating in other studies and/or receiving any other simultaneous therapy in index knee.
20. Patient has an uncorrected tear of the meniscus of the index knee. (Partial meniscectomy that retains \>50% of the meniscus is allowed prior to or concurrently with the cartilage treatment procedure. Meniscus suture repair is allowed prior to or concurrently with the cartilage treatment procedure if \>50% of the functional meniscus remains.).
21. Patient has an additional cartilage lesion(s) (ICRS Grade 3 or 4) in the index knee, located on the patella, trochlea, tibia, or non-weight bearing area of index condyle that requires treatment.
22. More than one implant is required to accommodate defect in the index knee.
23. Patient has inadequate bone stock (e.g., cysts, osteoporosis) underlying the lesion site as determined intra-operatively by the investigator
1. As determined by the investigator through use of an awl or a similar instrument to determine if the bone quality is insufficient to support the BioPoly device.
2. If the cause of inadequate bone stock is due to cysts or to the boney portion of an osteochondral lesion being excessive, then the investigator may opt to fix the implant with cement rather than exclude the patient for inadequate bone stock.
24. Patients with osteoporosis, osteopenia, Paget's disease, osteomalacia or any other metabolic bone disease; a. Osteoporosis is defined as Simple Calculated Osteoporosis Risk Estimation (SCORE) above 6 and DXA T-score \< -2.5 or QCT T-score \< 80mg/cubic cm. History of a fragility fracture requires that a DXA scan or QCT scan is completed

Contacts and Locations

Study Contact

Sheila Schwartz, R.Ph.

CONTACT

2609996135

sheila@biopolyortho.com

Principal Investigator

Herb Schwartz, Ph.D.

STUDY_DIRECTOR

BioPoly LLC

Study Locations (Sites)

Dupont Hospital

Fort Wayne, Indiana, 46845

United States

Collaborators and Investigators

Sponsor: BioPoly LLC

Herb Schwartz, Ph.D., STUDY_DIRECTOR, BioPoly LLC

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2025-03-17

Study Completion Date2028-12

Study Record Updates

Study Start Date2025-03-17

Study Completion Date2028-12

Terms related to this study

Keywords Provided by Researchers

articular cartilage
cartilage lesion
focal cartilage defect
cartilage defect

Additional Relevant MeSH Terms

Knee Pain Chronic
Knee Osteoarthritis
Cartilage Damage
Cartilage Defects of the Knee
Cartilage or Osteochondral Defects in the Knee
Cartilage Lesion