PMID- 31842921 OWN - NLM STAT- MEDLINE DCOM- 20200601 LR - 20220411 IS - 1749-799X (Electronic) IS - 1749-799X (Linking) VI - 14 IP - 1 DP - 2019 Dec 16 TI - Autologous bone marrow expanded mesenchymal stem cells in patellar tendinopathy: protocol for a phase I/II, single-centre, randomized with active control PRP, double-blinded clinical trial. PG - 441 LID - 10.1186/s13018-019-1477-2 [doi] LID - 441 AB - INTRODUCTION: Patellar tendon overuse injuries are common in athletes. Imaging may show a change in tissue structure with tendon thickening and disruption of the intratendinous substance. We wish to test the hypothesis that both autologous bone marrow expanded mesenchymal stem cells and autologous leukocyte-poor platelet-rich plasma (LP-PRP) implanted into the area of the disrupted tendinopathic patellar tendon will restore function, but tendon regeneration tissue will only be observed in the subjects treated with autologous bone marrow expanded mesenchymal stem cells. METHODS AND ANALYSIS: This is a single-centre, pilot phase I/II, double-blinded clinical trial with randomisation with active control. Twenty patients with a diagnosis of patellar tendinopathy with imaging changes (tendon thickening and disruption of the intratendinous substance at the proximal portion of the patellar tendon) will be randomised in a 1:1 ratio to receive a local injection of either bone-marrow autologous mesenchymal stem cells (MSC), isolated and cultured under GMP at The Institute of Biology and Molecular Genetics (IBGM) (Spain) or P-PRP. The study will have two aims: first, to ascertain whether a clinically relevant improvement after 3, 6 and 12 months according to the visual analogue scale (VAS), Victorian Institute of Sport Assessment for patellar tendons (VISA-P) and dynamometry scales (DYN) will be achieved; and second, to ascertain whether the proposed intervention will restore tendon structure as determined by ultrasonography (US), Doppler ultrasonography (DUS), and innovative MRI and ultrasound techniques: Magnetic Resonance T2 FAT SAT (UTE, Ultrashort Echo TE) sequence and Ultrasound Tissue Characterization (UTC). Patients who are randomised to the P-PRP treatment group but do not achieve a satisfactory primary endpoint after 6 months will be offered treatment with MSC. TRIAL REGISTRATION: NCT03454737. FAU - Rodas, Gil AU - Rodas G AD - Medical Department, Football Club Barcelona, C/Aristides Maillol, s/n 08028, Barcelona, Spain. AD - Medicine and Exercise Sport Unit, Hospital Clinic and Sand Joan de Deu, Barcelona University, C/Villarroel 170, 08036, Barcelona, Spain. FAU - Soler, Robert AU - Soler R AD - ITRT Institut Terapia Regenerativa Tissular Centro Medico Teknon, C/Vilana 12. 08022, Barcelona, Spain. FAU - Balius, Ramon AU - Balius R AD - Consell Catala del'Esport, Unitat d'Esporti Salut Av Paisos Catalans, 40-48, 08950, Esplugues, Spain. FAU - Alomar, Xavier AU - Alomar X AD - Diagnostico por la Imagen, Clinica Creu Blanca, Passeig de la Reina Elisenda de Montcada, 17, 08034, Barcelona, Spain. FAU - Peirau, Xavier AU - Peirau X AD - ITRT Institut Terapia Regenerativa Tissular Centro Medico Teknon, C/Vilana 12. 08022, Barcelona, Spain. AD - Institut Nacional d'Educacio Fisica de Catalunya (INEFC), Partida Caparrella s/n, 25192, Lleida, Lleida, Spain. FAU - Alberca, Mercedes AU - Alberca M AD - Instituto de Biologia y Genetica Molecular (IBGM), Universidad Valladolid y CSIC Edificio IBGM, C/ Sanz y Fores, s/n, 47003, Valladolid, Spain. AD - Red TerCel de Terapia Celular, Instituto de Salud Carlos III, Hospital Clinico Universitario Virgen de la Arrixaca. Servicio de Hematologia. Edf. General, Ctra. Madrid-Cartagena s/n, 30120, Murcia, Spain. FAU - Sanchez, Ana AU - Sanchez A AD - Instituto de Biologia y Genetica Molecular (IBGM), Universidad Valladolid y CSIC Edificio IBGM, C/ Sanz y Fores, s/n, 47003, Valladolid, Spain. AD - Red TerCel de Terapia Celular, Instituto de Salud Carlos III, Hospital Clinico Universitario Virgen de la Arrixaca. Servicio de Hematologia. Edf. General, Ctra. Madrid-Cartagena s/n, 30120, Murcia, Spain. FAU - Sancho, Javier Garcia AU - Sancho JG AD - Instituto de Biologia y Genetica Molecular (IBGM), Universidad Valladolid y CSIC Edificio IBGM, C/ Sanz y Fores, s/n, 47003, Valladolid, Spain. AD - Red TerCel de Terapia Celular, Instituto de Salud Carlos III, Hospital Clinico Universitario Virgen de la Arrixaca. Servicio de Hematologia. Edf. General, Ctra. Madrid-Cartagena s/n, 30120, Murcia, Spain. FAU - Rodellar, Clementina AU - Rodellar C AD - LAGENBIO, Facultad de Veterinaria, Lab. Genetica Bioquimica. Facultad de Veterinaria, Universidad de Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain. FAU - Romero, Antonio AU - Romero A AD - LAGENBIO, Facultad de Veterinaria, Lab. Genetica Bioquimica. Facultad de Veterinaria, Universidad de Zaragoza, C/Miguel Servet 177, 50013, Zaragoza, Spain. FAU - Masci, Lorenzo AU - Masci L AD - Institute of Sport Exercise and Health, London, UK. FAU - Orozco, Lluis AU - Orozco L AD - ITRT Institut Terapia Regenerativa Tissular Centro Medico Teknon, C/Vilana 12. 08022, Barcelona, Spain. FAU - Maffulli, Nicola AU - Maffulli N AUID- ORCID: 0000-0002-5327-3702 AD - Department of Musculoskeletal Disorders, University of Salerno School of Medicine, Surgery and Dentistry, Salerno, Italy. n.maffulli@qmul.ac.uk. AD - Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK. n.maffulli@qmul.ac.uk. AD - School of Pharmacy and Bioengineering, Keele University School of Medicine, Stoke on Trent, UK. n.maffulli@qmul.ac.uk. LA - eng SI - ClinicalTrials.gov/NCT03454737 GR - ITRT.2018.23-B/CT/Institutde Terapia Regenerativa Tissular, Centro Medico Teknon/ PT - Clinical Trial Protocol PT - Journal Article DEP - 20191216 PL - England TA - J Orthop Surg Res JT - Journal of orthopaedic surgery and research JID - 101265112 SB - IM MH - Adolescent MH - Adult MH - Clinical Trials, Phase I as Topic/methods MH - Clinical Trials, Phase II as Topic/methods MH - Double-Blind Method MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Mesenchymal Stem Cell Transplantation/adverse effects/*methods MH - Mesenchymal Stem Cells/*cytology MH - Middle Aged MH - Pain Measurement/methods MH - *Patellar Ligament/diagnostic imaging MH - Patient Selection MH - Pilot Projects MH - Randomized Controlled Trials as Topic/methods MH - Research Design MH - Tendinopathy/diagnostic imaging/*therapy MH - Treatment Outcome MH - Ultrasonography MH - Young Adult PMC - PMC6916077 OTO - NOTNLM OT - Tendinopathy; Mesenchymal stem cells; Platelet-rich plasma COIS- The authors declare that they have no competing interests. EDAT- 2019/12/18 06:00 MHDA- 2020/06/02 06:00 PMCR- 2019/12/16 CRDT- 2019/12/18 06:00 PHST- 2019/07/01 00:00 [received] PHST- 2019/11/14 00:00 [accepted] PHST- 2019/12/18 06:00 [entrez] PHST- 2019/12/18 06:00 [pubmed] PHST- 2020/06/02 06:00 [medline] PHST- 2019/12/16 00:00 [pmc-release] AID - 10.1186/s13018-019-1477-2 [pii] AID - 1477 [pii] AID - 10.1186/s13018-019-1477-2 [doi] PST - epublish SO - J Orthop Surg Res. 2019 Dec 16;14(1):441. doi: 10.1186/s13018-019-1477-2.