Rotator Cuff Syndrome
Conditions
Keywords
Massive Rotator Cuff Tear, Arthroscopy, Shoulder Joint, Rotator cuff partial repair
Brief summary
A pivotal study to assess the safety and effectiveness of the InSpace™ device implantation in comparison to surgical partial repair of full thickness Massive Rotator Cuff Tear (MRCT).
Detailed description
This is a non-inferiority, prospective, single blinded, multi-center, randomized, controlled, pivotal study evaluating the safety and effectiveness of the InSpace™ device as a primary surgical treatment for full thickness MRCT in comparison to Partial Repair of a full thickness MRCT performed during an arthroscopic procedure.
Interventions
Arthroscopic implantation of InSpace sub-acromial tissue spacer system
Arthroscopic partial repair of rotator cuff
Sponsors
Study design
Eligibility
Inclusion criteria
Main Inclusion Criteria: * Positive diagnostic imaging by MRI of the index shoulder indicating a full thickness Massive Rotator Cuff Tear (MRCT), measuring ≥ 5 cm in diameter involving ≥ two tendons (confirmed Intra-operatively) * Functional deltoid muscle and preserved passive range of motion on physical examination * Documented VAS score of \> 30 mm pain * Failed non-operative treatment of at least 4 months * Patient in general good health,independent, and can comply with all post-operative evaluations and visits. Main
Exclusion criteria
* Known allergy to the device material (copolymer of PLA and -ε-caprolactone) * Evidence of the following conditions: 1. significant gleno-humeral or acromiohumeral arthritis 2. full thickness cartilage loss as seen on MRI 3. gleno-humeral instability (excessive translation of the humeral head on the glenoid fossa) 4. pre-existing deltoid defect or deltoid palsy 5. major joint trauma, infection or necrosis 6. partial thickness tears of the supraspinatous 7. fully reparable rotator cuff tear \[Tear of less than 5 cm in diameter (or \< 4 cm2) with retractable tendon that can be fully repaired\] * The subject requires concomitant subscapularis repair and/or labral repair * Previous surgery of the index shoulder in the past 1 year, excluding diagnostic arthroscopy * The subject's condition is bilateral and rotator cuff repair is scheduled or to be scheduled over the course of this study for the contra lateral shoulder * Major medical condition that could affect quality of life and influence the results of the study (e.g. HIV or other immunosuppressive conditions, active malignancy in the past 5 years, acute MI, CVA, etc.) * Documented evidence of a history of drug/alcohol abuse within 12 months of enrollment * The subject's condition represents a worker's compensation case * The subject is currently involved in a health-related litigation procedure * Females of child-bearing potential who are pregnant or breastfeeding or plan to become pregnant during the course of the study * Concurrent participation in any other investigational clinical study one month prior to enrollment or during the entire study period * The subject has implanted metallic devices (e.g., cardiac pacemakers, insulin pumps, nerve stimulators), medically implanted clips or other electronically, magnetically or mechanically activated implants that would contraindicate undergoing a MRI scan or has claustrophobia that would inhibit ability to undergo a MRI scan . * The subject is physically or mentally compromised (e.g., currently being treated for a psychiatric disorder, senile dementia, Alzheimer's disease, etc.), to the extent that the Investigator judges the subject to be unable or unlikely to remain compliant to follow-up * The subject is receiving prescription narcotic pain medication for conditions unrelated to the index shoulder condition * The subject currently has an acute infection in the area surrounding the surgical site.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants in the Per Protocol Population With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears From Baseline to Month 12 With no SSSIs and no SADEs. | Baseline to month 12 | The primary composite effectiveness endpoint was defined as achievement of improvement for the Western Ontario Rotator Cuff (WORC) score (≥275 points) and American Shoulder and Elbow Society (ASES) score (≥6.4 points) by week 6 and maintenance at month 12 without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs). The improvement of points of the Western Ontario Rotator Cuff (WORC) of at least 275 (point scale of 0-2100:lower score is better) and American Shoulder and Elbow Society (ASES) at least 6.4 (point scale of 0-100:higher score is better) reflect the required number of points in improvement for treatment to be considered successful. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Composite Endpoint Component Level Success for WORC at Month 12 Compared to Baseline in the Per Protocol Population (PP) | Baseline to month 12 | The secondary effectiveness endpoint was defined as a composite component-level success at Month 12 for Western Ontario Rotator Cuff (WORC) total score improvement (≥275) (scale of 0-2100:lower score is better) in the two groups, InSpace and Partial Repair without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs). |
| Composite Endpoint Component Level Success for ASES at Month 12 Compared to Baseline in the Per Protocol Population (PP) | Baseline to month 12 | The secondary endpoint was defined as a composite component-level success for American Shoulder and Elbow Surgeons ( ASES) compared at baseline to Month 12 without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs).. The total score improvement of (≥ 6.4 points) (scale of 0-100:higher score is better) from baseline in the two groups, InSpace and Partial Repair. |
| Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. WORC | Baseline through to month 24 | The secondary effectiveness endpoint was defined as mean change from baseline to Month 24 for Western Ontario Rotator Cuff (WORC) total score improvement (≥275) (scale of 0-2100:lower score is better) in the two groups, InSpace and Partial Repair. |
| Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. ASES | Baseline through to month 24 | Mean change in American Shoulder and Elbow Surgeons (ASES) score from baseline to month 24. The improvement of points of the American Shoulder and Elbow Society (ASES) at least 6.4 (point scale of 0-100:higher score is better) reflect the required number of points in improvement for treatment to be considered successful. |
| Composite Endpoint of WORC Improvement ≥275 and ASES Improvement ≥6.4 at Week 6 Maintained at Month 24 no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (Pre-specified). Composite WORC ASES and Safety to M24 | Baseline through to Month 24 | Composite Endpoint Per Protocol Population (PP) of WORC Improvement ≥ 275 and ASES Improvement ≥ 6.4 from baseline at Week 6 Maintained at Month 24 with no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (pre-specified). |
| The Mean Change From Baseline to Month 24 for EQ-5D-5L for Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | Baseline through to month 24 | The secondary effectiveness endpoint was defined as change in baseline to Month 24 for Quality of Life (EQ-5D-5L) (scale of 0-100: lower score better) in the two groups, InSpace and Partial Repair. |
| Mean Change From Baseline to Month 24 for VAS in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | Baseline through to month 24 | The secondary effectiveness endpoint was defined as the mean change from baseline at Month 24 for Visual Analogue Scale (VAS) (scale of 0-100:lower score is better) in the two groups, InSpace and Partial Repair. |
| Mean Change From Baseline to Month 24 for ASES ROM in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | Baseline through to month 24 | The secondary effectiveness endpoint was defined as mean change from baseline at Month 24 for American Shoulder and Elbow Surgeons (ASES) range of motion (ROM)-physician reported portion. (scale of 0-180 Degrees: higher score is better) in the two groups, InSpace and Partial Repair. |
| Mean Change From Baseline to Month 24 for Constant-Murley (CS) in the Intent To Treat Population (ITT) With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | Baseline to month 24 | The secondary effectiveness endpoint was defined as mean change from baseline to Month 24 for Constant-Murley (CS) Shoulder Outcome score (where the scale of 0-100:higher score is better) in the two groups, InSpace and Partial Repair. |
Countries
Canada, United States
Participant flow
Recruitment details
Subjects assessed for eligibility n=229
Pre-assignment details
Subjects excluded (n=45) for various reasons, not meeting criteria (n=11), declined to participate (n=12), and Other (n=22) such as, no medical clearance for surgery, intra-op screen failures, enrollment full.
Participants by arm
| Arm | Count |
|---|---|
| InSpace Implantation Arthroscopic InSpace (Sub-acromial tissue spacer system) implantation
InSpace sub-acromial tissue spacer system: Arthroscopic implantation of InSpace sub-acromial tissue spacer system | 93 |
| Tendon Repair Arthroscopic partial repair of rotator cuff
Partial repair of rotator cuff: Arthroscopic partial repair of rotator cuff | 91 |
| Total | 184 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Adverse Event | 4 | 2 |
| Overall Study | Death | 0 | 1 |
| Overall Study | Lost to Follow-up | 2 | 4 |
| Overall Study | Physician Decision | 0 | 1 |
| Overall Study | Protocol Violation | 0 | 1 |
| Overall Study | Subject unable to return for follow-up visits | 2 | 0 |
| Overall Study | Withdrawal by Subject | 2 | 3 |
Baseline characteristics
| Characteristic | Tendon Repair | Total | InSpace Implantation |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 47 Participants | 102 Participants | 55 Participants |
| Age, Categorical Between 18 and 65 years | 44 Participants | 82 Participants | 38 Participants |
| Age, Continuous | 64.7 Years STANDARD_DEVIATION 7.88 | 65.8 Years STANDARD_DEVIATION 7.84 | 66.8 Years STANDARD_DEVIATION 7.7 |
| Ethnicity (NIH/OMB) Hispanic or Latino | 2 Participants | 4 Participants | 2 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 89 Participants | 180 Participants | 91 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Asian | 1 Participants | 2 Participants | 1 Participants |
| Race (NIH/OMB) Black or African American | 7 Participants | 14 Participants | 7 Participants |
| Race (NIH/OMB) More than one race | 3 Participants | 5 Participants | 2 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 0 Participants | 0 Participants | 0 Participants |
| Race (NIH/OMB) White | 80 Participants | 163 Participants | 83 Participants |
| Region of Enrollment Canada | 12 participants | 27 participants | 15 participants |
| Region of Enrollment United States | 78 participants | 156 participants | 78 participants |
| Sex: Female, Male Female | 41 Participants | 84 Participants | 43 Participants |
| Sex: Female, Male Male | 50 Participants | 100 Participants | 50 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 93 | 1 / 91 |
| other Total, other adverse events | 67 / 93 | 69 / 91 |
| serious Total, serious adverse events | 22 / 93 | 22 / 91 |
Outcome results
Percentage of Participants in the Per Protocol Population With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears From Baseline to Month 12 With no SSSIs and no SADEs.
The primary composite effectiveness endpoint was defined as achievement of improvement for the Western Ontario Rotator Cuff (WORC) score (≥275 points) and American Shoulder and Elbow Society (ASES) score (≥6.4 points) by week 6 and maintenance at month 12 without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs). The improvement of points of the Western Ontario Rotator Cuff (WORC) of at least 275 (point scale of 0-2100:lower score is better) and American Shoulder and Elbow Society (ASES) at least 6.4 (point scale of 0-100:higher score is better) reflect the required number of points in improvement for treatment to be considered successful.
Time frame: Baseline to month 12
Population: Percentage of participants in the Per Protocol Population (PP) with surgical treatment success of the InSpace device as a Primary surgical treatment for Full-thickness massive rotator cuff tears (MRCT).
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| InSpace Implantation | Percentage of Participants in the Per Protocol Population With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears From Baseline to Month 12 With no SSSIs and no SADEs. | 51.1 percentage of participants |
| Tendon Repair | Percentage of Participants in the Per Protocol Population With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears From Baseline to Month 12 With no SSSIs and no SADEs. | 39.8 percentage of participants |
Composite Endpoint Component Level Success for ASES at Month 12 Compared to Baseline in the Per Protocol Population (PP)
The secondary endpoint was defined as a composite component-level success for American Shoulder and Elbow Surgeons ( ASES) compared at baseline to Month 12 without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs).. The total score improvement of (≥ 6.4 points) (scale of 0-100:higher score is better) from baseline in the two groups, InSpace and Partial Repair.
Time frame: Baseline to month 12
Population: Per Protocol Population
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| InSpace Implantation | Composite Endpoint Component Level Success for ASES at Month 12 Compared to Baseline in the Per Protocol Population (PP) | 96.3 percentage of participants |
| Tendon Repair | Composite Endpoint Component Level Success for ASES at Month 12 Compared to Baseline in the Per Protocol Population (PP) | 90.9 percentage of participants |
Composite Endpoint Component Level Success for WORC at Month 12 Compared to Baseline in the Per Protocol Population (PP)
The secondary effectiveness endpoint was defined as a composite component-level success at Month 12 for Western Ontario Rotator Cuff (WORC) total score improvement (≥275) (scale of 0-2100:lower score is better) in the two groups, InSpace and Partial Repair without subsequent secondary surgical intervention (SSSI) or serious adverse device effects (SADEs).
Time frame: Baseline to month 12
Population: Per Protocol Population
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| InSpace Implantation | Composite Endpoint Component Level Success for WORC at Month 12 Compared to Baseline in the Per Protocol Population (PP) | 89.8 percentage of participants |
| Tendon Repair | Composite Endpoint Component Level Success for WORC at Month 12 Compared to Baseline in the Per Protocol Population (PP) | 87.5 percentage of participants |
Composite Endpoint of WORC Improvement ≥275 and ASES Improvement ≥6.4 at Week 6 Maintained at Month 24 no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (Pre-specified). Composite WORC ASES and Safety to M24
Composite Endpoint Per Protocol Population (PP) of WORC Improvement ≥ 275 and ASES Improvement ≥ 6.4 from baseline at Week 6 Maintained at Month 24 with no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (pre-specified).
Time frame: Baseline through to Month 24
Population: Per Protocol Population with no major protocol deviations.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| InSpace Implantation | Composite Endpoint of WORC Improvement ≥275 and ASES Improvement ≥6.4 at Week 6 Maintained at Month 24 no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (Pre-specified). Composite WORC ASES and Safety to M24 | 46.3 percentage of participants |
| Tendon Repair | Composite Endpoint of WORC Improvement ≥275 and ASES Improvement ≥6.4 at Week 6 Maintained at Month 24 no Subsequent Secondary Surgical Intervention (SSSI) and no Serious Adverse Device Effect (SADEs) (Pre-specified). Composite WORC ASES and Safety to M24 | 38.0 percentage of participants |
Mean Change From Baseline to Month 24 for ASES ROM in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears
The secondary effectiveness endpoint was defined as mean change from baseline at Month 24 for American Shoulder and Elbow Surgeons (ASES) range of motion (ROM)-physician reported portion. (scale of 0-180 Degrees: higher score is better) in the two groups, InSpace and Partial Repair.
Time frame: Baseline through to month 24
Population: Intent to Treat (ITT) Population with available data
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | Mean Change From Baseline to Month 24 for ASES ROM in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | 36.89 score on a scale |
| Tendon Repair | Mean Change From Baseline to Month 24 for ASES ROM in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | 18.16 score on a scale |
Mean Change From Baseline to Month 24 for Constant-Murley (CS) in the Intent To Treat Population (ITT) With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears
The secondary effectiveness endpoint was defined as mean change from baseline to Month 24 for Constant-Murley (CS) Shoulder Outcome score (where the scale of 0-100:higher score is better) in the two groups, InSpace and Partial Repair.
Time frame: Baseline to month 24
Population: Intent to Treat (ITT) Population with available data
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | Mean Change From Baseline to Month 24 for Constant-Murley (CS) in the Intent To Treat Population (ITT) With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | 28.22 score on a scale |
| Tendon Repair | Mean Change From Baseline to Month 24 for Constant-Murley (CS) in the Intent To Treat Population (ITT) With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | 21.81 score on a scale |
Mean Change From Baseline to Month 24 for VAS in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears
The secondary effectiveness endpoint was defined as the mean change from baseline at Month 24 for Visual Analogue Scale (VAS) (scale of 0-100:lower score is better) in the two groups, InSpace and Partial Repair.
Time frame: Baseline through to month 24
Population: Intent To Treat (ITT) Population with available data
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | Mean Change From Baseline to Month 24 for VAS in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | -56.55 score on a scale |
| Tendon Repair | Mean Change From Baseline to Month 24 for VAS in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | -54.55 score on a scale |
Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. ASES
Mean change in American Shoulder and Elbow Surgeons (ASES) score from baseline to month 24. The improvement of points of the American Shoulder and Elbow Society (ASES) at least 6.4 (point scale of 0-100:higher score is better) reflect the required number of points in improvement for treatment to be considered successful.
Time frame: Baseline through to month 24
Population: Intent To Treat (ITT) Population with available data
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. ASES | 46.22 score on a scale |
| Tendon Repair | Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. ASES | 42.53 score on a scale |
Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. WORC
The secondary effectiveness endpoint was defined as mean change from baseline to Month 24 for Western Ontario Rotator Cuff (WORC) total score improvement (≥275) (scale of 0-2100:lower score is better) in the two groups, InSpace and Partial Repair.
Time frame: Baseline through to month 24
Population: The Intent To Treat (ITT) population with available data.
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. WORC | -1083.37 score on a scale |
| Tendon Repair | Mean Change From Baseline to Month 24 in the Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears Through to Month 24. WORC | -1007.00 score on a scale |
The Mean Change From Baseline to Month 24 for EQ-5D-5L for Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears
The secondary effectiveness endpoint was defined as change in baseline to Month 24 for Quality of Life (EQ-5D-5L) (scale of 0-100: lower score better) in the two groups, InSpace and Partial Repair.
Time frame: Baseline through to month 24
Population: Intent to Treat (ITT) Population with available data
| Arm | Measure | Value (MEAN) |
|---|---|---|
| InSpace Implantation | The Mean Change From Baseline to Month 24 for EQ-5D-5L for Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | -4.65 score on a scale |
| Tendon Repair | The Mean Change From Baseline to Month 24 for EQ-5D-5L for Intent To Treat (ITT) Population With Available Data With Surgical Treatment Success of the InSpace Device as a Primary Surgical Treatment for Full-thickness Massive Rotator Cuff Tears | -4.00 score on a scale |