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Clinical Trial Summary

Systemic sclerosis (SS) causes microvascular alteration in the hand and subsequently pain, skin fibrosis, and osteoarticular deformities. These injuries initiate functional decline of the hand and decrease patient quality of life.

Local application of adipose-derived stromal vascular fraction (ADSVF) has been proposed as an emerging treatment. There are reports about the good results obtained after ADSVF treatment in this kind of patients. For these reasons , we aimed to evaluate the safety and clinical effect of application of fat micrografts enriched with ADSVF to the hands of patients with SS.


Clinical Trial Description

The regenerative properties of adipose stem cells (ASCs) existing in the mixed cell fraction obtained by enzymatic digestion of adipose tissue, termed adipose-derived stromal vascular fraction (ADSVF), were initially described in 2002. These cells have the characteristics of being multipotent and exerting local angiogenic, anti-inflammatory, antifibrotic, immunomodulatory, and regenerative effects after application. ASCs express their angiogenic properties most effectively in a hypoxic environment.

For the above reasons, and because of its abundance in fat, easy acquisition, and almost immediate availability for use, ADSVF has positioned itself as an alternative for repair and regeneration of ischemic tissue.

Application of decanted fat, centrifuged fat, and ADSVF, has consistently and significantly improved pain, Raynaund Phenomen, and healing of digital ulcers in the hands of patients with SS, and thus improved their quality of life. Other inconsistent benefits have also been reported, such as decreased digital circumference, improvement in digital mobility and strength, improvement in formation of new subungual capillaries, and improvement in function through evaluation of the Cochin scale.

Based on the above findings, and because changes in the hands of patients with SS may arise through loss of adipocytes and defective stem cell function, we designed the present study with the aim of evaluating the safety, reproducibility, and clinical effects of application of fat micrografts enriched with ADSVF to the hands of patients affected with SS in a controlled clinical trial.

The experimental and control groups each contained 10 patients diagnosed with SS according to the criteria of the American College of Rheumatology and the LeRoy-Medsger criteria.

It was decided to carry out the treatment on the most affected hand of the patients, which was the right hand in the entire experimental group. ADSVF-enriched fat micrografts were applied to the experimental group. Evolution and medical therapy effects were observed in the control group.

The fat was obtained by liposucction and the ADSVF was processed in laboratory. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04387825
Study type Interventional
Source Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
Contact
Status Completed
Phase Phase 2
Start date August 13, 2015
Completion date May 2020

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