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Clinical Condition Included in the Approved Indications For Use for the Conformis Hip SystemNCT03738462

A Study to Evaluate the Conformis Hip System

An observational study of Clinical Condition Included in the Approved Indications For Use for the Conformis Hip System, run by Restor3D at 6 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a prospective multicenter study. Subjects will be implanted with a Conformis Hip System. If the surgeon intraoperatively decides to use the Cordera femoral stem, these patients will also be enrolled in the study and tracked as a subset of the Conformis Hip System patient population.The study sites will be… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Conformis Hip System
Type of treatment
Medical device
How many people
49 participants
Where
6 sitesUnited States
Study dates
26 Nov 2018to 6 Jun 2022
Phase
Observational
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 18 years and older
  • All sexes
  • Adult, Older adult

Study population: Patients with clinical condition included in the approved Indications For Use for the Conformis Hip System and the Cordera Hip System

Who may be able to join

  • Clinical condition included in the approved Indications For Use for the Conformis Hip System and the Cordera Hip System
  • Osteoarthritis, as confirmed by the investigator's assessment of disease status at screening visit that warrants a THR procedure
  • Willingness to participate in the clinical study, to give informed consent, and to attend all follow-up visits
  • > 18 years of age

Who cannot join

  • Simultaneous bilateral procedure required
  • BMI > 40
  • Poorly controlled diabetes (defined as HbA1c>7 or Investigator discretion)
  • Crowe classification of hip dysplasia, grades 2, 3, or 4
  • Active malignancy (defined as a history of any invasive malignancy - except non-melanoma skin cancer), unless patient has been treated with curative intent and there have been no clinical signs or symptoms of the malignancy for at least 5 years
  • Other lower extremity surgery planned within 1 year of consent to the affected limb Contralateral THR surgery within 3 months pre or post index surgery
Show all 18Show fewer
  • Neuromuscular conditions which prevent patient from participating in study activities
  • Active local or systemic infection which precludes THR procedure
  • Immunocompromised in the opinion of the Investigator
  • Medically diagnosed fibromyalgia or similar conditions that might impact the patient's ability to differentiate source of pain
  • Rheumatoid arthritis or other forms of inflammatory joint disease
  • Loss of bone or musculature, osteonecrosis, neuromuscular or vascular compromise in the area of the joint to be operated on, to an extent that the procedure is unjustified
  • Diagnosed with or receiving treatment for osteoporosis that is likely to confound results in the opinion of the Investigator
  • Physical disability affecting the lumbar spine that is likely to confound results in the opinion of the Investigator
  • Charcot or Paget's disease
  • Inability to complete the protocol in the opinion of the clinical staff due to safety or other reasons
  • Participation in another clinical study which would confound results
  • Allergy to any of the implant materials

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

United States6 sites
  • Personalized Orthopedic Research Institute

    Boynton Beach, Florida, 33437

  • Orthopaedic Institute of Henderson

    Henderson, Nevada, 89052

  • Scott Orthopedic Center

    Huntington, West Virginia, 25702

  • Tennessee Orthopaedic Alliance

    Nashville, Tennessee, 37203

  • Denver Hip and Knee

    Parker, Colorado, 80134

  • The Orthopedic Specialty Center of Northern California

    Roseville, California, 95678

Other trials in United States

About this study

Official title: A Prospective, Multicenter Study to Evaluate the Conformis Hip System

This is a prospective multicenter study. Subjects will be implanted with a Conformis Hip System. If the surgeon intraoperatively decides to use the Cordera femoral stem, these patients will also be enrolled in the study and tracked as a subset of the Conformis Hip System patient population.The study sites will be located in the United States. The study subjects will be followed for 10 years post implantation.

Being tested
Conformis Hip System

What participants receive

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

  • Conformis Hip SystemDevice

    Also called Cordera Hip System

    The Conformis Hip System is an FDA cleared, uncemented, primary total hip replacement device composed of femoral and acetabular components. The system incorporates the use of a pre-operative CT scan to design patient-specific implants and instruments. Using patient imaging (CT scan), a patient-specific implant is designed that best meets the geometric and anatomic requirements of the specific patient. In addition, each Conformis Hip System device is shipped with an additional (optional) femoral stem (Cordera Femoral Stem).

What is being measured

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

  1. Harris Hip Score

    Score 0-100 (successful result = post operative increase in Harris Hip Score of > 20 points + radiographically stable implant + no additional femoral reconstruction; < 70 = poor, 70-79 - fair, 80-89 = good, and 90-100 = excellent)

    Measured: 2 Years

Secondary outcomes (8)
  1. Revision rates post-implantation

    Measured: 10 Years

  2. The Hip Injury and Osteoarthritis Outcome Score (HOOS)

    Score 0-100 for each of 5 subscales (symptoms, stiffness, pain, function, and quality of life)

    Measured: 10 Years

  3. Incidence of major procedure-related and device-related complications including infection rate

    Measured: 10 Years

  4. Post-operative leg length and implant placement in comparison to preoperative condition

    Measured: Peri-operative

  5. Utilization of fluoroscopy during implantation (number of times utilized; amount of times utilized)

    Measured: Peri-operative

  6. Length of procedure

    Measured: Peri-operative

  7. Length of hospital stay

    Measured: Peri-operative

  8. Blood management (transfusions)

    Measured: Peri-operative

Timeline

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

  1. First posted13 Nov 2018
  2. Study start26 Nov 2018
  3. Primary completion6 Jun 2022
  4. Study completion6 Jun 2022

Why it stopped: Decision of investigational team

Resources

More details

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

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03738462
Sponsor's protocol ID
18-001
Status last verified
Oct 2023
First submitted
29 Oct 2018
Last updated
25 Oct 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Clinical Condition Included in the Approved Indications For Use for the Conformis Hip System, run by Restor3D at 6 sites in United States.

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 4 inclusion and 18 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: stopped early, as of the sponsor's last update on 25 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in United States. 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 was stopped early (reason given: Decision of investigational team). Results are not available in the source record.

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?

Harris Hip Score (time frame: 2 Years). 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 25 Oct 2023.

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