RecruitingPhase 1Drug trialAMSC for Reducing Anastomotic Stenosis in Primary Arteriovenous AnastomosesResearchers are evaluating the safety of allogeneic Adipose Derived Mesenchymal Stem Cells (AMSC) use during hemodialysis arteriovenous fistula and arterial bypass creation and its efficacy on improving access maturation and primary anastomotic patency.