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Perl, Markus; Herfeld, Konstantin; Harrer, Dennis C; Höpting, Matthias; Schweiger, Marina; Sterz, Ulrich; Knödler, Leonard; Heimerl, Susanne; Hansmann, Leo; Herr, Wolfgang; Poeck, Hendrik; Wolff, Daniel; Edinger, Matthias; Hart, Christina; Fante, Matthias A
Haematologica (Roma), 2024-Mar-28, Letnik: 999, Številka: 1Journal Article
Chimeric antigen receptor (CAR-) T cell therapy causes serious side effects including cytokine release syndrome (CRS). CRS-related coagulopathy is associated with hypofibrinogenemia that is thus far considered the result of disseminated intravascular coagulation (DIC) and liver dysfunction. We investigated incidence and risk factors for hypofibrinogenemia in 41 consecutive adult patients with hematologic malignancies (median age 69 years, range 38-83 years) receiving CAR-T cell therapy between 01/2020 and 05/2023 at the University Medical Center Regensburg. CRS occurred in 93% of patients and was accompanied by hypofibrinogenemia already from CRS grade 1. Yet, DIC and liver dysfunction mainly occurred in severe CRS (≥ grade 3). After an initial increase during CRS, fibrinogen levels dropped after administration of tocilizumab in a dose dependent manner (r = -0.44, p = 0.004). In contrast, patients who did not receive tocilizumab had increased fibrinogen levels. Logistic regression analysis identified tocilizumab as an independent risk factor for hypofibrinogenemia (odds ratio = 486, p < 0.001). We thus hypothesize that fibrinogen synthesis in CRS is upregulated in an interleukin-6-dependent acute phase reaction compensating for CRS-induced consumption of coagulation factors. Tocilizumab inhibits fibrinogen upregulation resulting in prolonged hypofibrinogenemia. These observations provide novel insights into the pathophysiology of hypofibrinogenemia following CAR-T cell therapy and emphasize the need for close fibrinogen monitoring after tocilizumab treatment of CRS.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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