2022
Rilzabrutinib, an Oral BTK Inhibitor, in Immune Thrombocytopenia
KUTER, D. J., M. EFRAIM, Jiří MAYER, Marek TRNĚNÝ, V. MCDONALD et. al.Základní údaje
Originální název
Rilzabrutinib, an Oral BTK Inhibitor, in Immune Thrombocytopenia
Autoři
KUTER, D. J., M. EFRAIM, Jiří MAYER (203 Česká republika, domácí), Marek TRNĚNÝ (203 Česká republika), V. MCDONALD, R. BIRD, T. REGENBOGEN, M. GARG, Z. KAPLAN, N. TZVETKOV, P. Y. CHOI, A. J. G. JANSEN, Milan KOSTAL (203 Česká republika), R. BAKER, Jaromir GUMULEC (203 Česká republika), E. J. LEE, I. CUNNINGHAM, I. GONCALVES, M. WARNER, R. BOCCIA, T. GERNSHEIMER, W. GHANIMA, O. BANDMAN, R. BURNS, A. NEALE, D. THOMAS, P. ARORA, B. ZHENG a Cooper N. RILZABRUTINIB
Vydání
New England Journal of Medicine, Waltham, Massachussetts Medical Society, 2022, 0028-4793
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30218 General and internal medicine
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 158.500
Kód RIV
RIV/00216224:14110/22:00126144
Organizační jednotka
Lékařská fakulta
UT WoS
000798829500005
Klíčová slova anglicky
Rilzabrutinib; Oral BTK Inhibito; Immune Thrombocytopenia
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 6. 2022 09:07, Mgr. Tereza Miškechová
Anotace
V originále
BACKGROUND & nbsp;Rilzabrutinib, an oral, reversible covalent inhibitor of Bruton's tyrosine kinase, may increase platelet counts in patients with immune thrombocytopenia by means of dual mechanisms of action: decreased macrophage (Fc gamma receptor)-mediated platelet destruction and reduced production of pathogenic autoantibodies.& nbsp;METHODS & nbsp;In an international, adaptive, open-label, dose-finding, phase 1-2 clinical trial, we evaluated rilzabrutinib therapy in previously treated patients with immune thrombocytopenia. We used intrapatient dose escalation of oral rilzabrutinib over a period of 24 weeks; the lowest starting dose was 200 mg once daily, with higher starting doses of 400 mg once daily, 300 mg twice daily, and 400 mg twice daily. The primary end points were safety and platelet response (defined as at least two consecutive platelet counts of >= 50x10(3) per cubic millimeter and an increase from baseline of >= 20x10(3) per cubic millimeter without the use of rescue medication).& nbsp;RESULTS & nbsp;Sixty patients were enrolled. At baseline, the median platelet count was 15x10(3) per cubic millimeter, the median duration of disease was 6.3 years, and patients had received a median of four different immune thrombocytopenia therapies previously. All the treatment-related adverse events were of grade 1 or 2 and transient. There were no treatment-related bleeding or thrombotic events of grade 2 or higher. At a median of 167.5 days (range, 4 to 293) of treatment, 24 of 60 patients (40%) overall and 18 of the 45 patients (40%) who had started rilzabrutinib treatment at the highest dose met the primary end point of platelet response. The median time to the first platelet count of at least 50x10(3) per cubic millimeter was 11.5 days. Among patients with a primary platelet response, the mean percentage of weeks with a platelet count of at least 50x10(3) per cubic millimeter was 65%.& nbsp;CONCLUSIONS & nbsp;Rilzabrutinib was active and associated with only low-level toxic effects at all dose levels. The dose of 400 mg twice daily was identified as the dose for further testing. Overall, rilzabrutinib showed a rapid and durable clinical activity that improved with length of treatment.