SCLERoderma et Adipose-DErived Stroma Cells

Study Overview
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Brief Summary
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Systemic sclerosis (SSc) is an auto-immune orphan disease mainly characterized by an alteration of the microvascular network, and by cutaneous and visceral fibrosis. Hands are frequently affected, as a consequence of ischemic phenomena and cutaneous fibrosis. As a result, patients suffer from everyday disability, with consequences on their occupational activities and social contact, sometimes severely altering their quality of life. To date, no anti-fibrosis treatment has proven effective; existing vasodilation treatments are unfortunately not very effective, and are associated with adverse effects or restrictions. It is consequently of utmost importance that an effective treatment for sclerodermic hands be developed. The injection of adipose autologous tissue is a common practice in plastic surgery, and has been known for over a century. Adipose tissue, originally used to increase volume, is also characterized by trophic properties associated to stromal vascular fraction (SVF), which contain multipotent stem cells, capable of tissue repair. Interestingly, some SVF cells can be angiogenic and anti-inflammatory, which could improve damage seen with SSc. The injection of SVF into the fingers would also make it possible to control the production of the extracellular matrix and to improve the balance between fibrosis and fibrolysis, resulting in an improvement of cutaneous sclerosis The main purpose is to evaluate the efficacy of SVF injections in the fingers of patients suffering from SSc on the Cochin hand functional scale evaluated at 12 months, in comparison to the control group.

Conditions
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Systemic Sclerosis

Intervention / Treatment
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* Drug: Stromal Vascular fraction
* Drug: Ringer lactate


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Systemic Sclerosis ( limited or diffuse cutaneous shape) Men and women of more than 18 years old Patients wishing for a therapeutic alternative Functional Disability of the dominant hand authenticated by a functional index of the hand of Cochin functional scale upper to 20 Exclusion Criteria: Body mass index (weight in kilograms divided by height in meters squared) lower than 18 Finger infection (including infected ulcer, ulcer with signs of local inflammation and clinical suspicion of osteitis) Contraindication to surgery Prescription of a new systemic treatment for SSc in the month before the inclusion Subjects infected with HIV, HCV ( hepatitis C virus) , HBV (hepatitis B virus), HTLV ( human T-cell leukemia virus) and syphilis Pre-menopausal women of reproductive age, taking no contraceptive method Patients receiving immunosuppressive therapy not including corticosteroid therapy < 10 mg/D and methotrexate

Ages Eligible for Study
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Minimum Age: 18 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
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: PLACEBO<br>Patients will receive an injection of placebo | Drug: Ringer lactate<br> <br> * Other names: placebo;|
| Experimental: DRUG : Stromal Vascular Fraction<br>Patients will receive an injection of Stromal Vascular Fraction injection | Drug: Stromal Vascular fraction<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Cochin hand functional scale |  | 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| the severity (frequency and intensity of crises) of Raynaud's phenomenon |  | 12 months | 
| the strength (Jamar et Pinch test) |  | 12 months | 
| the trouble trophicity (health assesment questionnaire) |  | 12months | 
| the pain in the hands (EVA pain scale), |  | 12 months |