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Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Bone+Marrow+Transplant 2018 ; 53 (7): 852-62 Nephropedia Template TP
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Effective treatment of steroid and therapy-refractory acute graft-versus-host disease with a novel mesenchymal stromal cell product (MSC-FFM) #MMPMID29379171
Bader P; Kuçi Z; Bakhtiar S; Basu O; Bug G; Dennis M; Greil J; Barta A; Kállay KM; Lang P; Lucchini G; Pol R; Schulz A; Sykora KW; von Luettichau I; Herter-Sprie G; Uddin MA; Jenkin P; Alsultan A; Buechner J; Stein J; Kelemen A; Jarisch A; Soerensen J; Salzmann-Manrique E; Hutter M; Schäfer R; Seifried E; Klingebiel T; Bonig H; Kuçi S
Bone Marrow Transplant 2018[]; 53 (7): 852-62 PMID29379171show ga
The inability to generate mesenchymal stromal cells (MSCs) of consistent potency likely is responsible for inconsistent clinical outcomes of patients with aGvHD receiving MSC products. We developed a novel MSC manufacturing protocol characterized by high in vitro potency and near-identity of individual doses, referred to as ?MSC-Frankfurt am Main (MSC-FFM)?. Herein, we report outcomes of the 69 patients who have received MSC-FFM. These were 51 children and 18 adults with refractory aGvHD grade II (4%), III (36%) or IV (59%). Patients were refractory either to frontline therapy (steroids) (29%) or to steroids and 1?5 additional lines of immunosuppressants (71%) were given infusions in four weekly intervals. The day 28 overall response rate was 83%; at the last follow-up, 61% and 25% of patients were in complete or partial remission. The median follow-up was 8.1 months. Six-month estimate for cumulative incidence of non-relapse mortality was 27% (range, 16?38); leukemia relapse mortality was 2% (range, 0?5). This was associated with a superior six-month overall survival (OS) probability rate of 71% (range, 61?83), compared to the outcome of patients not treated with MSC-FFM. This novel product was effective in children and adults, suggesting that MSC-FFM represents a promising therapy for steroid refractory aGvHD.