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Trial record 1 of 3 for:    DeNovo NT KNee
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DeNovo NT Natural Tissue Graft Stratified Knee Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01670617
Recruitment Status : Unknown
Verified December 2016 by Zimmer Orthobiologics, Inc..
Recruitment status was:  Active, not recruiting
First Posted : August 22, 2012
Last Update Posted : January 26, 2017
Information provided by (Responsible Party):
Zimmer Orthobiologics, Inc.

Brief Summary:
The purpose of this study is to evaluate the long-term relief of pain and return to function for patients receiving DeNovo NT for cartilage lesions in the knee. DeNovo NT is a marketed product and has been used in more than 7,500 patients over the last 7 years.

Condition or disease Intervention/treatment Phase
Defect of Articular Cartilage Knee Injuries Other: Particulated Juvenile Articular Cartilage Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 90 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Stratified, Post-Market Study of DeNovo NT for the Treatment of Femoral and Patellar Articular Cartilage Lesions of the Knee
Study Start Date : March 2012
Estimated Primary Completion Date : December 2018
Estimated Study Completion Date : December 2021

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
DeNovo NT Graft
DeNovo NT Graft stratified by lesion location - femur or patella
Other: Particulated Juvenile Articular Cartilage
Treatment of articular cartilage defects up to 7.5 cm2
Other Name: DeNovo NT Natural Tissue Graft

Primary Outcome Measures :
  1. Improvement in KOOS scores [ Time Frame: Between baseline and 24 months post surgery ]
    Improvement in Knee Injury and Osteoarthritis Outcomes Survey (KOOS) scores

Secondary Outcome Measures :
  1. X-ray Evaluation [ Time Frame: Preop, 12 months and 24 months post surgery ]
    X-ray evaluation of joint narrowing, and osteophyte and cyst formation

  2. Incidence and time to reoperation/revision [ Time Frame: 5 years ]
  3. Mean IKDC Knee Examination grades [ Time Frame: Annually to 5 years post surgery ]
  4. MRI Evaluation [ Time Frame: Preop, 12 Months and 24 Months post surgery ]
    Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score

  5. Incidence of adverse events [ Time Frame: Annually to 5 years post surgery ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No


  1. Voluntary signature of the IRB approved Informed Consent,
  2. Male or female subjects between the ages of 18 to 55 years,
  3. If female: Actively practicing a contraception method and willing to continue for a minimum of 1 year postoperatively, practicing abstinence and willing to continue for a minimum of 1 year postoperatively, or sterile
  4. One or two contained lesion(s) of the femur or patella ≥ ICRS Grade 3 or OCD lesions with healed bone base with no loss of bone greater than 6mm
  5. Has peripheral cartilage debridement to healthy cartilage that results in at least one lesion with an area of ≥ 2 cm2 and ≤ 7.5 cm2,
  6. Lesion(s) to be treated must be contained/shouldered > 70% of the periphery,
  7. Ligaments in the affected knee are stable,
  8. Ipsilateral knee compartment has intact menisci
  9. The contralateral knee is asymptomatic, stable, and fully functional,
  10. Is refractory to conservative non-surgical management or minimal surgical intervention and ≥ 3 months from the start of either treatment,
  11. Must record a response, at the preoperative study visit, of moderate to extreme pain for any one of the KOOS Pain Scale questions, P2 through P9.
  12. Must be physically and mentally willing and able, in the Investigator's opinion at the time of enrollment, to be compliant with the protocol


  1. Clinical disease diagnosis of the indexed affected joint that includes

    • Osteoarthritis or avascular necrosis,
    • Rheumatoid arthritis, or history of septic or reactive arthritis,
    • Gout or a history of gout or pseudogout in the affected knee,
    • Bipolar articular cartilage involvement (or kissing lesions)
    • Has more than two clinically relevant chondral lesion(s) on the index knee,
    • Osteochondritis dissecans of the knee with significant bone loss
    • Associated damage to the underlying subchondral bone requiring bone graft,
    • Has well-defined subchondral cyst(s),
    • Has current or impending subchondral avascular necrosis,
  2. History of secondary arthropathies (i.e., sickle cell disease, hemochromatosis, or autoimmune disease),
  3. Uncontrolled diabetes,
  4. Displays a high surgical risk due to unstable cardiac and/or pulmonary disease,
  5. Has HIV or other immunodeficient state
  6. Is at substantial risk for the need of organ transplantation
  7. Is pregnant or breast-feeding,
  8. Body Mass Index >35 (BMI=kg/m2),
  9. Is participating concurrently in another clinical trial
  10. Is receiving prescription pain medication other than NSAIDs or acetaminophen for conditions unrelated to the index knee condition, chronic use of anticoagulants, or taking corticosteroids,
  11. Has a neuromuscular, neurosensory, or musculoskeletal deficiency that limits the ability to perform objective functional assessment of either knee,
  12. Active joint infection or history of chronic joint infection at the surgical site,
  13. Prior total meniscectomy of either knee,
  14. Has severe patellofemoral malalignment/maltracking or patellar instability
  15. Radiographically has >5 degrees of malalignment
  16. Has received, within the past 3 months HA or cortisone injections in knee,
  17. Has undergone prior tendon repair, meniscus repair, ligament repair or distal realignment/osteotomy surgery in the index knee, < 6 months prior to surgery,
  18. Failed marrow stimulation or ACI treatment performed < 12-mo before baseline,
  19. Index knee has been surgically treated for cartilage repair with OATs, mosaicplasty or osteochondral allograft,
  20. Involves concomitant procedures in the affected knee with the exception of incidental loose body removal, debridement, synovectomy, retinacular release, and/or partial meniscectomy
  21. Has contraindications for Magnetic Resonance Imaging (MRI),
  22. Has an allergy to Polymyxin B sulfate or Bacitracin antibiotics,
  23. Is receiving workman's compensation or currently involved in litigation relating to the index knee

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01670617

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Sponsors and Collaborators
Zimmer Orthobiologics, Inc.
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Responsible Party: Zimmer Orthobiologics, Inc.
ClinicalTrials.gov Identifier: NCT01670617    
Other Study ID Numbers: CSU2011-03B
First Posted: August 22, 2012    Key Record Dates
Last Update Posted: January 26, 2017
Last Verified: December 2016
Additional relevant MeSH terms:
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Knee Injuries
Leg Injuries
Wounds and Injuries