Actively Recruiting

Phase Not Applicable
Age: 14Years - 64Years
All Genders
ID06823089

Early Feasibility Study of Cartilage Defect Repair for Hip Disease Using the ReNew Hip Implant

Led by Cytex Therapeutics, Inc. · Updated on 2026-02-17

15

Participants Needed

1

Research Sites

N/A

Total Duration

On this page

Sponsors

C

Cytex Therapeutics, Inc.

Lead Sponsor

M

MCRA

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating a new treatment option for patients aged 14 to 64 years who suffer from hip diseases that cause loss of cartilage integrity on the femoral head, such as femoroacetabular impingement or other structural deformities. These patients have not responded to conservative care and are candidates for surgical intervention. The study focuses on offering an alternative to total hip replacement, which is often unsuitable for younger, active individuals. The investigational treatment is the ReNew Hip Implant, a bioabsorbable, highly porous device designed to mimic healthy cartilage mechanically. This implant combines a biomimetic 3D woven textile with a porous 3D-printed framework and preserves healthy bone stock, allowing for future surgeries if needed. The implant is surgically placed to repair cartilage defects on the femoral head. Participants will be closely monitored through follow-up visits lasting up to five years after surgery. Researchers will assess safety by tracking adverse events and device-related serious adverse events, and effectiveness through pain and function measurements using tools like the international Hip Outcome Tool-33 (iHOT-33). Additional evaluations include radiographic imaging, patient-reported outcomes, and health economic measures at various time points up to 60 months.

CONDITIONS

Brief Title

Early Feasibility Study of Cartilage Defect Repair

Who Can Participate

Age: 14Years - 64Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Aged 14 to 64 years; subjects 14-21 years must have hip joint growth plate closure shown on X-ray
  • Body mass index (BMI) less than 35
  • Failed at least 6 weeks of conservative treatment such as pain medication, physical therapy, or injections
  • Symptoms of hip pain lasting at least 3 months
  • Cartilage damage on the femoral head between about 1 and 6 cm² confirmed by MRI, suitable for a single implant
  • Joint space width greater than 2 mm on X-ray
  • Medically cleared for surgery without excessive risk
  • Provided consent and able to understand the study, available for follow-up through five years after surgery
Not Eligible

You will not qualify if you...

  • Current nicotine use or stopped less than 30 days before screening
  • Type 1 or Type 2 diabetes
  • Systemic steroid use within 3 months before screening
  • Bone deformities of the femoral head that prevent implant fitting
  • Acute or chronic conditions limiting study participation (e.g., COPD, heart failure)
  • Bleeding disorders
  • Current cancer except non-melanoma skin cancer
  • Pregnancy or plans to become pregnant during the study
  • Active infection or sepsis
  • History of local hip infection
  • Known metastatic or neoplastic diseases
  • Conditions affecting implant survival, such as severe hip dysplasia
  • Life expectancy under 2 years
  • Intra-articular therapy within 3 months before enrollment
  • Inadequate bone quality to support the implant
  • Femoral head size outside 46-56 mm range or shape mismatch
  • Moderate to severe kidney insufficiency
  • Emotional or neurological condition affecting participation
  • Above knee amputation of either leg
  • Allergies to implant materials
  • Prisoner status

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Surgery and Immediate Post-operative Care

Duration - Hospital admission to discharge

Participants undergo surgery to receive the ReNew Hip Implant and receive immediate post-operative care.

1 surgical visit and hospital stay

Post-operative Follow-up

Duration - Up to 60 months

Participants are monitored for safety and effectiveness of the implant through regular assessments.

Visits at 6, 12, 24, and 60 months post-surgery

Trial Site Locations

Total: 1 location

1

Washington University School of Medicine

St Louis, Missouri, United States, 63110

Actively Recruiting

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Research Team

B

Brad Estes, PhD

C

Christine Estes

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

DEVICE_FEASIBILITY

Number of Arms

1

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Published Research Related To This Trial