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Research idea tabled at this point.
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The purpose of this study is to examine healing after rotator cuff repair in subjects either treated with Doxycycline or placebo post-operatively.
Basic Science small animal model data indicates that matrix metalloproteinase (MMP) inhibition via doxycycline results in improved early rotator cuff repair biomechanics and histology. Rotator cuff repair failure and retear is a significant clinical problem. The effects of MMP inhibition on human rotator cuff tear repair healing and outcomes is unknown, but may potentially improve healing rates and outcomes. Our purpose is to evaluate the effects of early oral doxycycline on healing and outcomes following arthroscopic rotator cuff repair.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Doxycycline | Active Comparator | oral doxycycline, 2 weeks, twice a day, |
|
| sugar pill | Placebo Comparator | sugar pill, same size, shape, and color as comparator, twice a day for 2 weeks. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Doxycycline | Drug | antibiotic used to treat infection |
|
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| Measure | Description | Time Frame |
|---|---|---|
| rotator cuff ultrasound of post-operative shoulder | An ultrasound of the post-operative rotator cuff to assess level of healing or defect present. | one year |
| Measure | Description | Time Frame |
|---|---|---|
| American Shoulder and Elbow Surgeons score | The survey is a standardized assessment of shoulder pain and function from the patient's perspective. | 6 weeks, 3mos, 6mos, 1yr and 2 yr. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Aman Dhawan, MD | Milton S. Hershey Medical Center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Penn State Milton S. Hershey Medical Center | Hershey | Pennsylvania | 17033 | United States |
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| ID | Term |
|---|---|
| D000070636 | Rotator Cuff Injuries |
| ID | Term |
|---|---|
| D012421 | Rupture |
| D014947 | Wounds and Injuries |
| D000070599 | Shoulder Injuries |
| D013708 | Tendon Injuries |
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| ID | Term |
|---|---|
| D004318 | Doxycycline |
| D000073893 | Sugars |
| ID | Term |
|---|---|
| D013754 | Tetracyclines |
| D009279 | Naphthacenes |
| D011084 | Polycyclic Aromatic Hydrocarbons |
| D006841 | Hydrocarbons, Aromatic |
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| sugar pill | Drug | placebo with no pharmacologic effect |
|
| D006844 |
| Hydrocarbons, Cyclic |
| D006838 | Hydrocarbons |
| D009930 | Organic Chemicals |
| D011083 | Polycyclic Compounds |
| D002241 | Carbohydrates |