A Trial to Assess the Safety and Effectiveness of an Anatomic Total Shoulder System

September 14, 2026 updated by: Medacta USA

Randomized, Controlled, Multi-center, Prospective Trial to Assess the Efficacy and Safety of an Anatomic Total Shoulder System.

This study is designed to show that the clinical performance of Mirror Anatomic Shoulder Prosthesis meets the performance of currently marketed device in terms of a composite success endpoint (functional score, radiologic appearance, revisions, adverse events) at 24 months of follow up.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
286

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Arizona
      • Gilbert, Arizona, United States, 85297
    • Florida
      • Boca Raton, Florida, United States, 33428
      • Gulf Breeze, Florida, United States, 32561
      • Tampa, Florida, United States, 33607
    • Indiana
      • Fishers, Indiana, United States, 46037
        • Central Indiana Orthopedics
        • Principal Investigator:
          • Brian Badman, MD
    • Maryland
      • Columbia, Maryland, United States, 21044
        • Johns Hopkins - Washington
        • Contact:
        • Contact:
        • Principal Investigator:
          • Umasuthan Srikumaran, MD
    • New Hampshire
      • Lebanon, New Hampshire, United States, 03756
    • New York
      • New York, New York, United States, 10021
        • Cornell Med NY
        • Contact:
        • Principal Investigator:
          • Theodore Blaine, MD
    • Oregon
    • Pennsylvania
    • Utah
      • Salt Lake City, Utah, United States, 84108
      • St. George, Utah, United States, 84790
        • Intermountain Health
        • Contact:
        • Principal Investigator:
          • Zachary Leitze, MD

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.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adult subject 22 years or older
  • Clinical indication for total shoulder replacement due to osteoarthritis, and/or post-traumatic arthritis.
  • Scapula and proximal humerus must have reached skeletal maturity
  • Willing and able to comply with the protocol
  • Willing and able to sign the informed consent (or the Legally Authorized Representative will sign for the subject)

Exclusion Criteria:

  • Lack of sufficient bone quality that in the Investigator's medical judgment could compromise implant fixation or bone healing, including conditions such as:
  • Rapid joint destruction, marked bone loss or bone resorption;
  • Destruction of the proximal humerus that precludes rigid fixation of the humeral component; and
  • Osteomalacia
  • osteoporosis
  • rheumatoid arthritis
  • Metal allergies or sensitivity, including a known allergic reaction to implant metals (e.g., nickel) or polyethylene
  • Patient presents with a malunion or non-union of the tuberosities of the proximal humerus.
  • Infection at or near the site of implantation, including:
  • Glenohumeral joint infection
  • Osteomyelitis
  • Distant or systemic infection
  • Medical conditions or balance impairments that could lead to falls
  • Prior Total, or Reverse Total Shoulder arthroplasty in the affected shoulder.
  • Prior failed rotator cuff surgery, but excluding successful shoulder arthroscopy
  • Any full thickness rotator cuff tear at the time of surgery or a nonfunctional rotator cuff
  • Excessive glenoid bone loss defined by preoperative computed tomography (CT) scans of the shoulder which show insufficient glenoid bone, or insufficient bone identified at the time of surgery
  • Metabolic disorders which may impair bone function
  • Nonfunctional deltoid muscle
  • Neuromuscular compromise condition of the shoulder (e.g., neuropathic joints or brachioplexus injury with a flail shoulder joint)
  • Patients diagnosed with severe shoulder instability
  • Patients diagnosed with subscapularis incompetence
  • Known active metastatic or neoplastic diseases, Paget's disease or Charcot's disease
  • Currently, or within the last 6 months, or planning to be on chemotherapy or radiation
  • Currently taking > 5mg/day corticosteroids (e.g. prednisone) excluding inhalers, within 3 months prior to surgery or patients presenting with symptoms of chronic steroid use. (oral steroids for a chronic condition for 12 months prior to and including the date of surgery)
  • Female subjects who are pregnant or planning to become pregnant within the study period
  • In the surgeon's opinion, the subject is unable to understand the study or be compliant with the follow up or have a history of non-compliance with medical advice
  • History of any cognitive or mental health status that would interfere with study participation
  • Substance Use Disorder (alcohol and/or drug)
  • Engages in manual labor or sports activities that could affect shoulder outcome
  • Patients who have a work-related injury leading to shoulder OA
  • Currently enrolled in any clinical research study that might interfere with the current study endpoints
  • Patients with a life expectancy of less than three years
  • Medical condition or balance impairment that could lead to falls
  • Weight bearing shoulder due to wheelchair, crutches, rollator at the time of operation
  • Individuals who are incarcerated or detained in a correctional facility or under any form of legal supervision that limits their ability to voluntarily consent to participate in the trial.
  • Previous randomization of the subject in the current study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 143 undergoing implantation of the Mirror Anatomic Shoulder Prosthesis (investigational)
Device: Mirror Anatomic Total Shoulder Prosthesis
Total shoulder arthroplasty is a well-established procedure to treat glenohumeral osteoarthritis (OA), which is usually associated with chronic pain of varying severity, as well as loss of motion and function. To reduce polyethylene wear, a new Shoulder System, mirroring the materials at the humeral/glenoid interface.
Active Comparator: 143 patients undergoing implantation of Medacta Anatomic Shoulder (control)
Device: Medacta Anatomic Shoulder
Total shoulder arthroplasty is a well-established procedure to treat glenohumeral osteoarthritis (OA), which is usually associated with chronic pain of varying severity, as well as loss of motion and function.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
This study is designed to show that the clinical performance of Mirror Anatomic Shoulder Prosthesis is non-inferior to the performance of currently marketed devices in terms of a composite success endpoint
Time Frame: 24 months of follow up
The primary endpoint is clinical success, that will be determined if the following 4 criteria are met: No device-related serious adverse event have occurred, ASES score improved more than the Minimally Clinical Important Difference and is at least "fair", No radiological signs of implant subsidence, loosening or progressive radiolucency observed in the humeral or glenoid compartment, as defined in the Radiographic Evaluation Protocol, No revisions, removals, reoperations, or supplemental fixations.
24 months of follow up

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Secondary objectives include the assessment of shoulder-specific function and overall health-related quality of life over time using validated patient-reported outcome measures.
Time Frame: 24 Months of follow up
The secondary endpoint at 24 months will be determined at the 6-week, 6-month, and 1-year timepoints. Radiographic evaluation and assessment, a 100-point patient-reported scale used to evaluate shoulder pain and daily function, 12 questions used to measure general physical/mental health from a patient's perspective (This is evaluated 0-100), Implant survival, and Adverse Events.
24 Months of follow up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medacta USA

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 Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 11, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 4, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 10, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 16, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 14, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MUSA-MIRROR1-2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Undetermined at this time.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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