||||||||||TTAX01 / Tissuetech Clinical, Journal: An open label trial of cryopreserved human umbilical cord in the treatment of complex diabetic foot ulcers complicated by osteomyelitis. (Pubmed Central) - Sep 27, 2020 An open-label, multicenter trial of cryopreserved human umbilical cord (TTAX01) was undertaken in 32 subjects presenting with such complex wounds with a mean duration of 6.1 ± 9.0 (range: 0.2-47.1) months and wound area at screening of 3.8 ± 2.9 (range: 1.0-9.6) cm...The product was well tolerated. Two minor amputations occurred during the study period due to recurrent or persistent osteomyelitis, but there were no major amputations.