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OsteoarthritisNCT03193034

DSJ-2016-07 ATTUNE® Cementless CR RP Japan

A study testing Cementless Total Knee Arthroplasty in people with Osteoarthritis, run by DePuy Orthopaedics at 4 sites in Japan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective is to investigate the change from pre-operative baseline to two year postoperative functional performance improvement for the ATTUNE® primary, cementless TKA RP system as measured with the KOOS questionnaire (KOOS-ADL sub-score) in the Japanese patient population. Read more about this study

Who is it for?
Ages 22 to 80 years
Conditions the study is for
Osteoarthritis
What is being tested?
Cementless Total Knee Arthroplasty
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
81 participants
Where
4 sitesJapan
Study dates
30 Jun 2017to 30 Jun 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 22 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is male or female and between the ages of 22 and 80 years at the time of surgery, inclusive.
  • Subject was diagnosed with NIDJD.
  • Subject, in the opinion of the Investigator, is a suitable candidate for cementless primary TKA using the devices described in this CIP with either resurfaced or non-resurfaced patellae.
  • Subject that is willing to give voluntary, written informed consent to participate in this clinical investigation and authorize the transfer of his/her information to the Sponsor .
  • Subject is currently not bedridden
  • Subject, in the opinion of the Investigator, is able to understand this clinical investigation and is willing and able to perform all study procedures and follow-up visits and co-operate with investigational procedures.
  • Subject is able to read, and comprehend the Informed Consent Document as well as complete the required PROs in Japanese.

Who cannot join

  • The Subject is a woman who is pregnant or lactating. -Contralateral knee has already been enrolled in this study
  • Subject had a contralateral amputation.
  • Previous partial knee replacement (unicompartmental, bicompartmental or patellofemoral joint replacement), patellectomy, high tibial osteotomy or primary TKA in affected knee.
  • Subject is currently diagnosed with radicular pain from the spine that radiates into the limb to receive TKA.
  • Subject has participated in a clinical investig ation with an investigational product (drug or device) in the last three (3) months.
  • Subject is currently involved in any personal injury litigation, medical-legal or Worker's Acc ident Insurance claims (similar to Workers Compensation in USA).
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  • Subject, in the opinion of the Investigator, is a drug or alcohol abuser (in the last 5 years) or has a psychological disorder that could affect their ability to complete patient reported question naires or be compliant with follow-up requirements.
  • Subject was diagnosed and is taking prescription medications to treat a muscular disorder that limits mobility due to severe stiffness and pain such as fibromyalgia or polymyalgia.
  • Subject has a significant neurological or musculoskeletal disorder(s) or disease that may adversely affect gait or weight bearing (e.g., muscular dystrophy, multiple sclerosis, Charcot disease).
  • Subject is suffering from inflammatory arthritis (e.g., rheumatoid arthritis, juvenile rheumatoid arthritis, psoriatic arthritis, systemic lupus erythematosus, etc.).
  • Subject has a medical condition with less than two (2) years life expectancy.
  • Uncontrolled gout

Trial locations and contacts

4 sites in 1 country.

Japan4 sites
  • Nagoya orthopedic Clinic

    Kitanagoya, Aichi-ken, 481-0011

  • Kobe University Graduate School of Medicine

    Kobe, Hyōgo, 650-0017

  • Nagoya City University Hospital

    Nagoya, Aichi-ken, 467-8601

  • Osaka Rosai Hospital

    Sakai, Osaka, 591-8025

Other trials in Japan

About this study

Official title: Multi-Center Clinical Evaluation of the ATTUNE® Cementless Rotating Platform Total Knee Arthroplasty in the Japanese Patient Population

The primary objective is to investigate the change from pre-operative baseline to two year postoperative functional performance improvement for the ATTUNE® primary, cementless TKA RP system as measured with the KOOS questionnaire (KOOS-ADL sub-score) in the Japanese patient population.

Read the detailed description
  • Evaluate change from preoperative baseline in post-operative outcomes using additional patient reported measures at 2 years: PKIP (overall and sub-scores), KOOS (overall and sub-scores), AKS and EQ-5D-3L.
  • Evaluate change from preoperative baseline in pain and satisfaction over time as measured using a modified VAS Pain Score (discrete numbers rather than a continual scale) at 2yr.
  • Evaluate type and frequency of Adverse Events
  • Evaluate survivorship of the ATTUNE® Primary Cementless TKA system for the CR RP configurations using Kaplan-Meier survival analysis at 1 and 2yrs.
  • Evaluate primary, cementless ATTUNE® TKA fixation through zonal radiographic analysis of the bone-implant interface at 6wk, 1yr, and 2yrs after surgery.
  • Evaluate any changes in anatomic tibiofemoral, femoral component and tibial component alignment at 2 years compared to the first postoperative radiographs.
  • Radiographically characterize the postoperative ATTUNE patellar component alignment and positioning in Japanese population.
Conditions
Osteoarthritis
Being tested
Cementless Total Knee Arthroplasty
Keywords
Arthroplasty, replacement, Knee, function, radiographic, survivorship
Medical subject headings
Osteoarthritis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cementless Total Knee ArthroplastyDevice

    Patients will undergo a primary total knee replacement using the configuration of the ATTUNE Cementless knee (CR RP)

Study groups in NCT03193034
Study groupRoleWhat they receive
ATTUNE Cementless RP TKAExperimentalSubjects will receive a cementless, rotating platform total knee arthroplasty.
Receives: Device: Cementless Total Knee Arthroplasty

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Patient-reported Outcome:Knee Injury and Osteoarthritis Outcome Score Activities of Daily Living (KOOS ADL)

    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient self-administered questionnaire that consists of 42 questions and include the WOMAC Osteoarthritis index. The KOOS consists of 5 subscales: pain, other symptoms, activities of daily living (ADL), sport and recreational function and knee related quality of life. Each question has 5 Likert-like response options. A normalized score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale.

    Measured: Minimum 2 years (670-912 days after surgery)

Secondary outcomes (10)
  1. Patient-reported Outcome: Pre-surgical/Post-surgical Patient's Knee Implant Performance (PKIP)

    The Pre Surgical and/or Post-surgical Patient's Knee Implant Performance (PKIP) questionnaire is a patient self-administered questionnaire that consists of 25 questions relating to the patient's awareness of their knee. Questions include the patient's self-confidence about the current status of their knee performance, stability, and overall satisfaction. Each question has a 5, 6 or 10 Likert- like response option.

    Measured: Minimum 2 years (670-912 days after surgery)

  2. Patient-reported Outcome: Knee Injury and Osteoarthritis Outcome Score (KOOS)

    The Knee injury and Osteoarthritis Outcome Score (KOOS) is a patient self-administered questionnaire that consists of 42 questions and include the WOMAC Osteoarthritis index. The KOOS consists of 5 subscales: pain, other symptoms, activities of daily living (ADL), sport and recreational function and knee related quality of life. Each question has 5 Likert-like response options. A normalized score (100 indicating no symptoms and 0 indicating extreme symptoms) is calculated for each subscale.

    Measured: Minimum 2 years (670-912 days after surgery)

  3. Combination of Patient-reported and Clinical-reported Outcome: Knee Society 2011

    The Knee Society Score is a self-administered questionnaire. The subject completes questions regarding: Symptoms (3 questions), Patient Satisfaction (5 questions), Patient Expectations (3 questions), Functional Activities (5 questions), Standard Activities (6 questions), Advanced Activities (5 questions), and Discretionary Knee Activities ( 4 questions). The surgeon completes questions regarding objective knee indicators. Likert responses are used, typically with five response options.

    Measured: Minimum 2 years (670-912 days after surgery)

  4. Patient Reported Outcome: EuroQol 5D 3L questionnaire (EQ-5D-3L)

    EuroQol 5D 3L questionnaire is a standardized instrument for use as a measure of health outcome that is designed for completion by the subject.

    Measured: Minimum 2 years (670-912 days after surgery)

  5. Modified VAS Pain Score: Pain and Satisfaction

    VAS Pain Score is a standardized instrument for use as a measure of pain and satisfaction that is designed for completion by the subject. This modified version has scores that are discrete numbers rather than a continual scale

    Measured: Minimum 2 years (670-912 days after surgery)

  6. Type and Frequency of Adverse Events (AEs) for all enrolled subjects

    All Serious AEs must be reported to Sponsor. All device-related or procedure-related adverse events must be reported to Sponsor.

    Measured: Pre-op (-180 to -1 days before surgery), 6 weeks (1-303 days after surgery), minimum 1 year (304-669 days after surgery), minimum 2 years (670-912 days after surgery)

  7. Survivorship

    Kaplan-Meier survival analysis will be used to calculate the survivorship of configuration (CR RP)

    Measured: Minimum 1 year (304-669 days after surgery), minimum 2 years (670-912 days after surgery)

  8. Implant fixation: Radiographic assessment of bone-implant interface performance

    Radiographic success is defined as: absence of progressive radiolucent lines greater than or equal to 2mm in any one zone; absence of lytic lesions in any zone; absence of individual component position change >3degrees in any plane.

    Measured: 6 weeks (1-303 days after surgery), minimum 1 year (304-669 days after surgery), minimum 2 years (670-912 days after surgery)

  9. Evaluate changes in femoral component and tibial component alignment

    Radiographic success is defined as: absence of progressive radiolucent lines greater than or equal to 2mm in any one zone; absence of lytic lesions in any zone; absence of individual component position change >3degrees in any plane.

    Measured: Minimum 2 years (670-912 days after surgery)

  10. Radiographically characterize the postoperative ATTUNE patellar component alignment and positioning in Japanese population.

    Evaluate the tilt angle and translational position of the patellar component relative to the trochlear groove.

    Measured: Minimum 1 year (304-669 days after surgery)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jun 2017
  2. Study start30 Jun 2017
  3. Primary completion22 Dec 2020
  4. Study completion30 Jun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
81 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03193034
Sponsor's protocol ID
DSJ-2016-07
Status last verified
Sep 2021
First submitted
19 Jun 2017
Last updated
29 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Cementless Total Knee Arthroplasty in people with Osteoarthritis, run by DePuy Orthopaedics at 4 sites in Japan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Japan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Patient-reported Outcome:Knee Injury and Osteoarthritis Outcome Score Activities of Daily Living (KOOS ADL) (time frame: Minimum 2 years (670-912 days after surgery)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2021.

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