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Monocentric Trial: Stem Cell Emergency Life Threatening Limbs Arteriopathy (SCELTA) — SCELTA  

Critical Limb Ischemia Clinical Trial

Official title:
Monocentric Randomized Study for the Therapy of Critic Limb Ischemia With Bone Marrow- or Peripheral Blood-derived Stem Cells

Clinical Trial Summary

The investigators designed a randomized clinical trial (stem cell emergency life threatening arteriopathy or SCELTA) to compare the therapeutic efficacy of the auto-transplant of enriched circulating EPCs (ECEPCs) with auto-transplant of BM-MNCs. ECEPCs, obtained by immunoselection of CD14+ and CD34+ cells, or BM-MNCs, were injected intramuscularly in the affected limb of patients with critical limb ischemia (CLI).

Clinical Trial Description

Peripheral arterial disease comprises a clinical spectrum that extends from no symptoms to presentation with critical limb ischemia (CLI), which is a very invalidating condition characterized by rest pain, march inability, trophic lesions and unavoidable progression to major amputations, which are burdened by a high mortality in the first year. The pathophysiology of CLI often associates with a defect in the development of collateral vessels and angiogenesis, a process which refers to the formation of new blood vessels into tissue, due to circulating endothelial progenitor cells (EPCs) and vascular progenitor cells. In the last few years, significant improvement of this condition has been reported following bone marrow (BM) autotransplant or autotransplant of peripheral EPCs mobilized from BM through the injection of granulocyte-colony stimulatory factor (G-CSF). In a previous study, the investigators found that individually variable proportions of circulating CD14+ cells expressed low levels of CD34 (CD14+CD34low) and revealed the functional phenotype of EPCs. The investigators therefore designed a monocentric randomized clinical trial to compare the therapeutic efficacy of BM autotransplant with the autotransplant of a population of circulating CD34+ and CD14+CD34low enriched by a closed sterile immunomagnetic system (enriched circulating EPCs or ECEPCs), without a previous EPC mobilization from BM.

Patients will be evaluated for clinical parameters and ABI, TBI, TCp02 before autotransplant and at three follow-up times after the autotransplant (4, 24 and 52 weeks); also angio-TAC of legs, capillaroscopy, and photoplethysmography will be evaluated at 4, and even at 52 weeks. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02454231
Study type Interventional
Source University of Florence
Contact
Status Completed
Phase Phase 2/Phase 3
Start date September 2009
Completion date October 2015
View Details
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