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The EPIC-PRP study is a double-blind randomized controlled clinical trial with 1:1:1 allocation.The objective of the study is to evaluate by means of a randomized controlled, double-blind clinical trial the clinical outcomes of echo-guided injection of PRP with or without leukocytes compared with echo-guided injection of saline for minimally invasive treatment of patients with epicondylitis resistant to conservative therapy. It will be the aim of the study to evaluate the efficacy and safety of the injection procedures by revealing the improvement and incidence of adverse events following treatment
Patients with elbow epicondylitis will be included in a double-blind, randomized controlled trial, in which one group of patients will be treated with an echo-guided injection of LP-PRP (low leukocyte PRP), one group of patients will be treated with an echo-guided injection of LR-PRP (high leukocyte PRP), and another group of patients will be treated with an echo-guided injection of saline.All enrolled patients undergo sampling of a venous whole blood bag of approximately 300 cc from which Fresh Autologous PRP (PRP-A) will subsequently be obtained. According to randomization, a "leukodepletion" filter will be used to remove leukocytes in order to obtain LP-PRP. Instead, an aliquot of PRP will be cryopreserved and made available for the patient for a possible second PRP infiltration if there is no benefit after 6 months after the first infiltration.The patient will then be placed on the randomization list and will, therefore, be assigned to one of the three treatment groups (leukocyte-rich PRP, leukocyte-poor PRP, or saline solution). In the case of patients in the saline injection group, PRP will be prepared with or without leukocytes according to a dedicated randomization list, for possible treatment after 6 months if necessary.The patient will subsequently undergo 1 echo-guided infiltration, according to randomization.Patients will be clinically evaluated before the infiltration procedure and at 1-3-6-12 months after treatment by medical personnel. Questionnaires will be administered for clinical evaluations before treatment and at the above-mentioned clinical checkups during follow-up. Any adverse events to treatment will also be evaluated during follow-up visits. The duration and extent of swelling and pain following infiltration will be reported, and any drug therapies given by the patient will be recorded
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Leukocyte-rich Platelet rich plasma (LR-PRP) | Experimental | This group of patients will be treated with single injection of autologous leukocyte rich platelet rich plasma.At the 6-month follow-up visit, the patient will be informed about the treatment received. |
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| Leukocyte-poor Platelet rich plasma (LP-PRP) | Experimental | This group of patients will be treated withsSingle injection of autologous leukocyte poor platelet rich plasma.At the 6-month follow-up visit, the patient will be informed about the treatment received. |
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| Saline solution | Placebo Comparator | This group of patients will be treated with single intra-articular injection of saline solution (placebo). At the 6-month follow-up visit, patients will be informed about the treatment received. Patients of this group can cross-over to the treatment arm after 6 months following a dedicated randomization list. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Injection of autologous leukocyte rich platelet rich plasma (LR-PRP) | Biological | Patients will be treated with a single eco-guided injection of Autologous LR-PRP in the elbow affected by epicondylitis. |
| Measure | Description | Time Frame |
|---|---|---|
| Patient-rated Tennis Elbow Evaluation (PRTEE) | PRTEE is a 15-item questionnaire designed to measure forearm pain and disability in patients with lateral epicondylitis (also known as "tennis elbow"). The PRTEE allows patients to rate their levels of tennis elbow pain and disability from 0 to 10, and consists of 2 subscales: 1) Pain subscale (0 = no pain, 10 = worst imaginable) item 2) Function subscale (0 = no difficulty, 10 = unable to do). The total score is the sum of the two subscales and has a range from 0 to 100. | 6 months follow-up |
| Measure | Description | Time Frame |
|---|---|---|
| Patient-rated Tennis Elbow Evaluation (PRTEE) | PRTEE is a 15-item questionnaire designed to measure forearm pain and disability in patients with lateral epicondylitis (also known as "tennis elbow"). The PRTEE allows patients to rate their levels of tennis elbow pain and disability from 0 to 10, and consists of 2 subscales: 1) Pain subscale (0 = no pain, 10 = worst imaginable) item 2) Function subscale (0 = no difficulty, 10 = unable to do). The total score is the sum of the two subscales and has a range from 0 to 100. |
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Inclusion Criteria:
Patients with epicondylitis of the elbow:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Enrico Guerra, MD | Contact | 0516366567 | enrico.guerra@ior.it | |
| Roberta Licciardi, MSc | Contact | 6366567 | 051 | roberta.licciardi@ior.it |
| Name | Affiliation | Role |
|---|---|---|
| Enrico Guerra, MD | Istituto Ortopedico Rizzoli - SC Chirurgia della spalla e del gomito | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Istituto Ortopedico Rizzoli | Recruiting | Bologna | 40136 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 33330224 | Background | Kim GM, Yoo SJ, Choi S, Park YG. Current Trends for Treating Lateral Epicondylitis. Clin Shoulder Elb. 2019 Dec 1;22(4):227-234. doi: 10.5397/cise.2019.22.4.227. eCollection 2019 Dec. | |
| 19836974 | Background | Chen J, Wang A, Xu J, Zheng M. In chronic lateral epicondylitis, apoptosis and autophagic cell death occur in the extensor carpi radialis brevis tendon. J Shoulder Elbow Surg. 2010 Apr;19(3):355-62. doi: 10.1016/j.jse.2009.07.064. |
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This is a double-blind randomized controlled clinical trial with 1:1:1 allocation
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They will be "blinded" patients, health professionals who will assess clinical and functional outcomes (outcome assessors), and professionals who will analyze the data.
| Injection of autologous leukocyte poor platelet rich plasma (LP-PRP) | Biological | Patients will be treated with a single eco-guided injection of Autologous LP-PRP in the elbow affected by epicondylitis. |
|
| Placebo (saline solution) | Drug | Patients will be treated with a single injections of saline solution in the elbow affected by epicondylitis. |
|
| baseline, 1 month, 3 months and 12 months follow-up |
| Disability of the arm, shoulder and hand score (DASH) | The Disabilities of the Arm, Shoulder and Hand (DASH) Score is a 30-item self-reported questionnaire in which the response options are presented as 5-point Likert scales. Scores range from 0 (no disability) to 100 (most severe disability). This score was designed be useful in patients with any musculoskeletal disorder of the upper limb. | baseline, 1 month, 3 months, 6 months and 12 months follow-up |
| Tegner Activity Level Scale | Tegner Activity Level Scale is a questionnaire to find out the patient's level of physical activity.All patients will indicate the type of sporting activity performed and its frequency. The Tegner activity scale is a one-item score that graded activity based on work and sports activities on a scale of 0 to 10. Zero represents disability and 10 represents a competitive level of sport. | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| Oxford Elbow Score (OES) | Oxford Elbow score is a questionnaire consisting of 12 questions (related to pain, function, and socio-psychological aspects) specifically designed and developed to evaluate the outcomes of elbow surgery. The Oxford Elbow score has 12 items (questions) with 5 response options each. Each item response is scored as 0 to 4, with 0 representing greater severity. Underlying the 12 items are 3 domains (subscales): elbow pain, elbow function and social-psychological effects. Scores for each domain are calculated as the sum of each individual item score within that domain. This gives a score range of 0-16 for each domain and 0-48 overall, with 0 indicating the worst elbow score and 48 as a 'normal' elbow score | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| Visual Analogue Scale (VAS) | Visual analog scale consisting of a straight line segment (10 cm length), the ends of which correspond to "no pain" (0) and "the strongest pain imaginable" (10). | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| EuroQol Visual Analogue Scale (EQ-VAS) | EQ-VAS is a visual analog scale that has a range of scores from 0 (worst imaginable health condition) to 100 (best imaginable health condition). | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| EQ-5D (EuroQoL) Current Health Assessment | The generic health-related quality of life instrument-EQ-5D-allows both a description of health status along 5 dimensions and the evaluation of health or the estimation of a health summary score: the EQ-5D score on a scale where 0 is death and 1 is full health. EQ-5D is useful to evaluate the quality life of the patients. The EQ-5D respondents classify their own health status into 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression with 3 levels of severity (no problems, moderate problems, or severe problems). | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| Pain detect | The Pain Detect-Questionnaire is a reliable screening tool for neuropathic pain with high sensitivity, specificity, and positive predictive accuracy. In this scale, the score ranges from 0 to 38 (range 0-12 neuropathic component of pain unlikely, range 13-18 neuropathic component of pain probably present, range 19-38 neuropathic component of pain present). | baseline |
| Patient Acceptable Symptom State (PASS) | A tool to assess patient satisfaction in consideration of their current degree of pain, function, and daily activity. Patients can express if their state of health will be satisfying, answering "yes" or "no. | baseline, 1 month, 3 months, 6 and 12 months follow-up |
| Final treatment opinion | The patient should indicate satisfaction and relative degree with treatment at the end of the clinical trial (24 months follow-up). All patients will be able to indicate their health condition by choosing from this answers; "Full recovery", "much better", "somewhat better", "no change", "a little worse", "much worse". | 1 month, 3 months, 6 and 12 months follow-up |
| Effectiveness of the blinding procedure | The patient should indicate, after the infiltrative procedure, the type of treatment they think they received. | baseline |
| Expectations of treatment efficacy | The patient should indicate at baseline what benefits they expect from the treatment | baseline |
| 24292930 | Background | Hsu WK, Mishra A, Rodeo SR, Fu F, Terry MA, Randelli P, Canale ST, Kelly FB. Platelet-rich plasma in orthopaedic applications: evidence-based recommendations for treatment. J Am Acad Orthop Surg. 2013 Dec;21(12):739-48. doi: 10.5435/JAAOS-21-12-739. |
| 29268037 | Background | Chen X, Jones IA, Park C, Vangsness CT Jr. The Efficacy of Platelet-Rich Plasma on Tendon and Ligament Healing: A Systematic Review and Meta-analysis With Bias Assessment. Am J Sports Med. 2018 Jul;46(8):2020-2032. doi: 10.1177/0363546517743746. Epub 2017 Dec 21. |
| 26955228 | Background | Karaduman M, Okkaoglu MC, Sesen H, Taskesen A, Ozdemir M, Altay M. Platelet-rich plasma versus open surgical release in chronic tennis elbow: A retrospective comparative study. J Orthop. 2016 Jan 22;13(1):10-4. doi: 10.1016/j.jor.2015.12.005. eCollection 2016 Mar. |
| ID | Term |
|---|---|
| D013716 | Tennis Elbow |
| ID | Term |
|---|---|
| D000070639 | Elbow Tendinopathy |
| D052256 | Tendinopathy |
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D000092464 | Elbow Injuries |
| D001134 | Arm Injuries |
| D014947 | Wounds and Injuries |
| D013708 | Tendon Injuries |
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| ID | Term |
|---|---|
| D000077330 | Saline Solution |
| ID | Term |
|---|---|
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |
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