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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02747251
Other study ID # H-16016763
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 13, 2016
Est. completion date July 2019

Study information

Verified date January 2020
Source Copenhagen University Hospital, Hvidovre
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study evaluates the addition of a high dose of simple home-based elastic band strengthening exercises to usual care in patients with subacromial impingement syndrome. Half of the participants receive instructions in simple home-based elastic band strengthening exercises in addition to usual care, while the other half receive usual care.


Description:

The SEXSI trial is a pragmatic, assessor and participant blinded, randomized, controlled, superiority trial, with a two-group parallel design. Patients with subacromial impingement syndrome will be randomized to either usual care or a home-based intervention consisting of progressive high volume resistance training in addition to usual care using a 1:1 allocation. The primary end-point will be change in the Shoulder Pain and Disability Index (SPADI) 16 weeks after baseline.

The overall frame for the trial is a main clinical effectiveness-part and an embedded mechanistic part. The clinical effectiveness-part will be reported in the main trial paper, and include the following outcomes: SPADI (primary outcome), Abduction strength, External rotation strength, Abduction ROM, Pain last week, QoL-index, QoL-VAS, Global impression of change and PASS. Missing outcome data will be imputed using multiple imputations based on the following variables: All previous scores in the relevant outcome, Age, Gender and Allocation.

A full trial protocol will be published and made publicly available. A constrained Linear Mixed Model (cLMM) will be applied for all continuous outcomes with Time Frame 16 weeks (including the primary outcome), to compare the change from baseline to 16 weeks in the intervention group (IG) to that in the control group (CG). The outcome at 16 weeks will be included as dependent variable, treatment group (IG or CG) as main effect and both baseline score and any additional follow up measurements as repeated measurements. The covariance structures will be selected based on the MAICE procedure. Binary outcomes will be reported as proportions with corresponding 95% confidence intervals, and will be compared using Chi-squared tests, and Odds Ratios computed from random effects logistic regression models. All of these analyses will be conducted as intention to treat (ITT) analyses, including all randomized participants, regardless of protocol adherence, meaning that all participants will be analysed as randomized. In the primary trial report, all collected outcomes will be listed, and it will be stated that the below-mentioned variables - belonging to the mechanistic part - will be reported in secondary publications.

The mechanistic part will be reported in secondary papers with a clear reference to the primary trial and trial registration, and it will hold the label "secondary analyses from a pragmatic randomized controlled trial" in the title. The following outcomes will be reported:

Outcomes regarding pain sensitization (temporal summation of pain, conditioned pain modulation, pain pressure threshold and pain catastrophizing) will be reported in a subsequent paper where we also plan to investigate:

- the modifying effects of pain sensitization on the effectiveness of the add-on intervention

- the dose-response relationship between objectively monitored adherence to the add-on intervention and change in SPADI, shoulder abduction strength and external rotation strength

- the dose-response relationship between pain sensitization and change in SPADI, shoulder abduction strength and external rotation strength, and to what degree this is mediated through adherence to the intervention.

Outcomes regarding scapula dyskinesia and scapula dysfunction will be reported in another subsequent paper, were we also plan to investigate the modifying effects of scapula dyskinesia and scapula dysfunction on the effectiveness of the intervention on changes in SPADI, abduction strength and external rotation strength.


Recruitment information / eligibility

Status Completed
Enrollment 200
Est. completion date July 2019
Est. primary completion date October 29, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria:

- Convened for the first time to the clinic, for examination of their current shoulder disorder

- Shoulder disorder lasting at least three months

- Living in Capitol Region of Denmark

- Not pregnant

- Do not permanently use strong pain medication

- Able to understand spoken and written Danish

- =3 positive of the five diagnostic test for subacromial impingement syndrome (Hawkins-Kennedy test, Neer's test, pain-full arc, Resisted External Rotation test and Jobe's test)

- Offered a rehabilitation plan due to a medically justified need for general rehabilitation after discharge from the hospital under the Danish Health Act ยง 140.

- Completed Shoulder Pain And Disability Index (SPADI) questionnaire on the day of the medical examination

Exclusion Criteria:

- A radiologically verified new or previous fracture related to the shoulder joint, including the scapula

- Clinically suspected Glenohumeral osteoarthritis

- A clinically suspected luxation or sub-luxation of the glenohumeral, acromioclavicular or sternoclavicular joint

- A clinically suspected labral lesion, complete tear of the rotator cuff, frozen shoulder or other competing diagnoses (i.e. rheumatoid arthritis, cancer, neurological disorders, fibromyalgia, psychiatric illness)

Study Design


Intervention

Other:
Strengthen your Shoulder
A simple home-based elastic band strengthening exercise intervention. This program consists of progressive high volume resistance training exercises with an elastic band.
Usual Care
Usual care, consisting of a referral to general rehabilitation in the municipal under the Danish Health Act § 140, most often with the alternative option to choose a private physiotherapeutic clinic, partly at their own expense. Also includes any additional treatment the patient receives between baseline and follow-up, except that included in "Strengthen your Shoulder".

Locations

Country Name City State
Denmark Orthopaedic Department, Hvidovre Hospital Hvidovre

Sponsors (4)

Lead Sponsor Collaborator
Copenhagen University Hospital, Hvidovre Aalborg University, Metropolitan University College, University of Copenhagen

Country where clinical trial is conducted

Denmark, 

Outcome

Type Measure Description Time frame Safety issue
Primary SPADI Shoulder Pain And Disability Index score (continuous)
For all continuous outcomes with Time Frame 16 weeks, a constrained Linear Mixed Model (cLMM) is applied to compare the change from baseline to 16 weeks in the intervention group (IG) to that in the control group (CG), with the outcome at 16 weeks as dependent variable, treatment group (IG or CG) as main effect and both baseline score and any additional follow up measurements as repeated measurements. The covariance structures will be selected based on the MAICE procedure. These analyses will be conducted as intention to treat (ITT) analyses, including all randomized participants, regardless of protocol adherence. Participants will be analysed as randomized.
16 weeks
Secondary Abduction strength Maximum isometric voluntary contraction in shoulder abduction (continuous) 16 weeks
Secondary External rotation strength Maximum isometric voluntary contraction in shoulder external rotation (continuous) 16 weeks
Secondary Abduction ROM Active range of motion in shoulder abduction (continuous) 16 weeks
Secondary Pain last week The average of least pain and average pain last week (continuous) 16 weeks
Secondary QoL-index Health related Quality of Life measured using the Danish EQ-5D-3L index (continuous) 16 weeks
Secondary QoL-index Health related Quality of Life measured using the Danish EQ-5D-3L index (continuous) 52 weeks
Secondary QoL-VAS Health related Quality of Life measured using the Danish EQ-5D-3L VAS (continuous) 16 weeks
Secondary QoL-VAS Health related Quality of Life measured using the Danish EQ-5D-3L VAS (continuous) 52 weeks
Secondary PCS Pain Catastrophizing measured using the Pain Catastrophizing Scale (continuous) 16 weeks
Secondary Temporal summation of pain (TS) The increase in pain recorded on an electronic VAS scale (range: 0-10 cm), during repeated standardized pressure induced pain stimuli (continuous) 16 weeks
Secondary CPM-Threshold Conditioned pain threshold modulation, the percent increase in pressure pain tolerance threshold, when experimental tonic pain is induced (continuous) 16 weeks
Secondary CPM-Detection Conditioned pain detection modulation, the percent increase in pressure pain detection threshold , when experimental tonic pain is induced (continuous) 16 weeks
Secondary PPT-deltoid Pain pressure threshold at the deltoid muscle: The pressure applied with a manual algometer when the sensation changes from a sensation of pressure to the first sensation of pain (continuous). 16 weeks
Secondary PPT-Supraspinatus Pain pressure threshold at the supraspinatus muscle: The pressure applied with a manual algometer when the sensation changes from a sensation of pressure to the first sensation of pain (continuous). 16 weeks
Secondary PPT-Infraspinatus Pain pressure threshold at the infraspinatus muscle: The pressure applied with a manual algometer when the sensation changes from a sensation of pressure to the first sensation of pain (continuous). 16 weeks
Secondary PPT-worst Pain pressure threshold at the site of worst pain: The pressure applied with a manual algometer when the sensation changes from a sensation of pressure to the first sensation of pain (continuous). 16 weeks
Secondary Sick leave The number of days with reported sick leave due to shoulder disorder (continuous) 52 weeks
Secondary Global impression of change Much improved or recovered? (Binary) Binary outcomes will be reported as proportions with corresponding 95% confidence intervals, and will be compared using a Chi-squared tests, and Odds Ratios computed from random effects logistic regression models. 16 weeks
Secondary PASS Patient Acceptable Symptom State: Is the symptom state acceptable? (Binary) 16 weeks
Secondary Surgery Surgery performed for the shoulder disorder? (Binary) 52 weeks
Secondary SDT Scapula dyskinesia measured using the Scapula Dyskinesia Test (Binary) 16 weeks
Secondary mSAT Scapula dysfunction measured using the modified Scapula Assistance Test (Binary) 16 weeks
Secondary SPADI Shoulder Pain And Disability Index score (continuous) 52 weeks
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