Autologous Stromal Vascular Fraction of Cells for Treatment of Knee Articular Cartilage Dystrophy

Study Overview
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Brief Summary
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Stromal vascular fraction of cells (SVF) will be extracted from lipoaspirate by enzymatic digestion. SVF will be administered in a single dose intraarticularly 4 weeks after arthroscopic debridement. All patients will receive cell therapy.This is a single arm study with no control.

Detailed Description
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Patients undergone arthroscopic debridement for knee osteoarthritis will be subjected to abdominal liposuction under local anaesthesia. Harvested adipose tissue will be processed according to patent pending technology based on enzymatic digestion, washing and concentration of cell pellet in 5 ml of Hartmann's solution. Isolated SVF will be administered in a single dose into anterior part of knee joint cavity 28 days after arthroscopy.

Official Title
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Evaluation of Safety and Effectiveness of Intraarticular Administration of Autologous Stromal Vascular Fraction of Cells for Treatment of Knee Articular Cartilage Dystrophy

Conditions
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Knee Osteoarthritis

Intervention / Treatment
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* Procedure: Liposuction
* Other: SVF isolation
* Other: Intraarticular administration of autologous SVF


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Pain in the knee joint during more than a half day assessed by Visual Analog Pain Scale (score more than 40 mm) At least three of the following 6 criteria: 50 years of age or older, stiffness lasting less than 30 minutes, crepitus, bony tenderness, bony enlargement, no warmth to the touch Patient is able to walk without assistance Patient is familiar with Participant information sheet Patient signed informed consent form Non-inclusion Criteria: Medical history of endoprosthetic knee replacement Medical history of lower extremity osteotomy Medical history of knee surgery (including arthroscopy) during preceding 1 year prior to enrollment Medical history of intraarticular injections during preceding 6 months prior to enrollment Secondary osteoarthritis of the knee joint: posttraumatic osteoarthritis (developed after clinically significant injury), intra-articular fractures, clinically significant varus or valgus deformities of lower limbs, septic arthritis, joint's inflammatory disorders, gout, advanced chondrocalcinosis, Paget's disease, ochronosis, acromegaly, hemochromatosis, Wilson's disease, primary synovial osteochondromatosis, osteonecrosis, hemophilia Patients prescribed for immunosuppressive treatment Medical history of systemic autoimmune and inflammatory diseases Significant weight loss (> 10% of body weight in the previous year) of unknown etiology Medical history of venous thromboembolism or estimated high risk of venous thromboembolism Patients prescribed for systemic corticosteroids or other medications treatment with proven impact on bone or cartilage tissue metabolism Clinically significant abnormalities in results of laboratory tests Any conditions limiting compliance (dementia, neuropsychiatric disease, drug and alcohol abuse etc.) Participation in other clinical trials (or administration of investigational drugs) during 3 months prior inclusion Patients with malignant tumors including postoperative period, patients receiving chemotherapy and/or radiotherapy. Patient's activated partial thromboplastin time exceeds normal levels more than 1,8 times Patients prescribed for anticoagulants treatment or patient received anticoagulants at least one hour prior liposuction Medical history of heterotopic ossifications Patients prescribed for glycoprotein inhibitors treatment Exclusion Criteria: Patient's refusal from the further participation in trial Patient's refusal from compliance with the requirements of contraception during the participation in research Chronic kidney disease IV- V stages (creatinine clearance < 30 mL/min estimated by Cockcroft-Gault formula) Confirmed syphilis, HIV, hepatitis B or C infections Dropout Criteria: Pregnancy

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 85 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: SVF injection<br>Subjects will undergo liposuction under local anesthesia. Lipoaspirate will be processed to isolate and concentrate stromal vascular fraction of cells (SVF). After SVF isolation autologous cells suspension will be injected intraarticularly into knee joint. | Procedure: Liposuction<br> <br> Other: SVF isolation<br>* SVF will be isolated according to patent pending technology based on enzymatic digestion, washing and concentration of cell pellet in 5 ml of Hartmann's solution.<br>Other: Intraarticular administration of autologous SVF<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| SAEs monitoring | Types, probability and severity of treatment emergent serious adverse events (SAEs) | 4 weeks after treatment | 
| SARs monitoring | Types, probability and severity of treatment emergent serious adverse reactions (SARs) | 4 weeks after treatment | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Quality of life monitoring-1 | Quality of life estimated by validated questionnaire - the Short Form (36) Health Survey (SF-36) | Follow up to completion (up to 24 weeks after treatment) | 
| Quality of life monitoring-2 | Quality of life estimated by validated questionnaire - Knee Injury and Osteoarthritis Outcome Score (KOOS) | Follow up to completion (up to 24 weeks after treatment) | 
| Knee pain intensity monitoring | Knee pain intensity assessed by Visual Analog Pain Scale (no pain=0; maximum pain=100 mm) | Follow up to completion (up to 24 weeks after treatment) | 
| Changes in knee joint structure-1 | Changes in knee joint structure assessed by ultrasonography (effusion, synovial thickening or hypertrophy, cartilage parameters, vascularity, Baker's cysts, osteophytes, tendon and ligament abnormalities, meniscal changes, bursitis, erosions and panniculitis) | Follow up to completion (up to 24 weeks after treatment) | 
| Changes in knee joint structure-2 | Changes in knee joint structure assessed by X-ray (joint space width, bone contour, presence of osteophytes and sclerosis) | Follow up to completion (up to 24 weeks after treatment) | 
| Changes in knee joint structure-3 | Changes in knee joint structure assessed by MRI (articular cartilage, osteophytes, bone marrow abnormality, meniscal integrity, synovial effusion/tissue, anterior and posterior cruciate ligaments, and medial and lateral collateral ligaments) | Follow up to completion (up to 24 weeks after treatment) | 
| Changes in knee function | Changes in knee function assessed by validated questionnaire: Knee Society Score (KSS) | Follow up to completion (up to 24 weeks after treatment) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Damage of articular cartilage, Cartilage degeneration, Intraarticular injection, SVF, Stromal vascular fraction, Adipose-derived regenerative cells (ADRC), Adipose tissue, Stem cells