Predicting ROtator Cuff Tears Outcomes After Physical Therapy Treatment (PROTO)

May 21, 2025 updated by: Rubén Fernández Matías, Hospital Universitario Fundación Alcorcón

Predicting ROtator Cuff Tears Outcomes After Physical Therapy Treatment (the PROTO Study): a Multivariable Prediction Model Development Study

The aim of this multicenter non-controlled study is to develop a multivariable prediction model of pain/disability improvements in patients with full-thickness rotator cuff tears, after a physical therapy treatment based on therapeutic exercise and education.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Suspended

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.

Detailed Description

A multivariable prediction model for the improvement in shoulder pain and disability will be developed based on the following predictors:

  • Body mass index [kg/m2, Fractional polynomials FP2].
  • Smoking [Years, linear relationship].
  • Employment status [3 categories].
  • Maximum education degree [4 categories].
  • Previous performance of physical exercise [2 categories].
  • Baseline disability (measured with the Shoulder Pain and Disability Index) [Fractional polynomials FP2].
  • Baseline pain intensity (measured with a numeric pain rating scale) [Fractional polynomials FP2].
  • Pain duration [Weeks, linear relationship]
  • Pain catastrophizing (measured with the Pain Catastrophizing Scale) [Linear relationship].
  • Patient's expectations (measured with the Musculoskeletal Outcomes Data Evaluation and Management System) [Linear relationship].

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.
386

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 Locations

  • Spain
      • Madrid, Spain
        • Hospital Univeristario Fundación Alcorcón

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:

  • Full-thickness supraspinatus rotator cuff tear diagnosed by ultrasound imaging or magnetic resonance imaging.
  • Pain during resisted abduction and/or external rotation.
  • Pain intensity equal or greater to 3 points on a numeric pain rating scale, or a degree of disability equal or greater to 15% on the Shoulder Pain and Disability Index.
  • Pain lasting for at least 3 months.
  • Adequate comprehension of written and spoken Spanish

Exclusion Criteria:

  • Loss of passive external rotation at 0º of shoulder abduction equal or greater to 50% compared to contralateral side.
  • Suspected neck-related shoulder pain.
  • Suspected visceral-related shoulder pain.
  • Sings or symptoms of shoulder instability, including dislocations and/or subluxation within the last year.
  • Humerus and/or scapular fractures within the last year.
  • Previous rotator cuff repair surgery within the last year.
  • Presence of cancer, fibromyalgia, neurological and/or other systemic diseases.
  • Cognitive impairment that makes it impossible to perform therapeutic exercise.

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: N/A
  • Interventional Model: Single Group 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: Therapeutic exercise plus education
The treatment will consist of a progressive resistance exercise program along with education.
Other: Education
Education applied during all the therapeutic process, focusing on diverting the patient's attention away from the structural lesion, explaining the relationship between pain/disability and tissue injury, explaining the meaning of pain during exercises, and explaining the objectives of the implemented treatments.
Other: Therapeutic resistance exercise
Therapeutic exercise program based on individualized progressive resistance exercises performed during 3 months at home, with a frequency of 1-3 sessions per week at the hospital.

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
Shoulder disability
Time Frame: Change from baseline to 3-month, change from baseline to 6-month, and change from baseline to 1-year.
Shoulder disability measured with the Shoulder Pain and Disability Index, which ranges from 0 (no disability) to 100 (maximum degree of disability).
Change from baseline to 3-month, change from baseline to 6-month, and change from baseline to 1-year.

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
Need for surgery
Time Frame: 3-month, 6-month, and 1-year.
Need for surgery for the rotator cuff tear registered as a dichotomous variable (YES/NO).
3-month, 6-month, and 1-year.
Shoulder pain intensity
Time Frame: Change from baseline to 3-month, change from baseline to 6-month, and change from baseline to 1-year.
Shoulder pain intensity measured with a numeric pain rating scale, which ranges from 0 (no pain) to 10 (worst imaginable pain).
Change from baseline to 3-month, change from baseline to 6-month, and change from baseline to 1-year.

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Patient's expectations
Time Frame: Baseline
Patient's expectations of improvement with therapeutic exercise measured with the Musculoskeletal Outcomes Data Evaluation and Management System, which ranges from 0 (minimum degree of expectations) to 100 (maximum degree of expectations).
Baseline
Pain catastrophizing
Time Frame: Baseline
Pain catastrophizing measured with the Pain Catastrophizing Scale, which ranges from 0 (minimum degree of catastrophizing) to 100 (maximum degree of catastrophizing).
Baseline

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.
Hospital Universitario Fundación Alcorcón

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Hospital General Universitario Gregorio Marañon
Hospital Universitario Ramon y Cajal
Hospital Universitario La Paz
Hospital Universitario de Fuenlabrada
Hospital Universitario Principe de Asturias
Hospital Universitario La Princesa
Hospital Universitario Infanta Leonor - Vallecas / Hospital Virgen de la Torre

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 (Actual)

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.
May 1, 2024

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.
September 18, 2026

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.
September 18, 2026

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).
June 9, 2023

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.
June 16, 2023

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.
June 22, 2023

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.
May 25, 2025

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.
May 21, 2025

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.
May 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

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.
  • 23/66

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

IPD data will be shared with other researcher upon reasonable request.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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