Myelofibrosis Clinical Trial
Official title:
An Open-Label, Multicenter, Phase 1b/2 Study of the Safety and Efficacy of KRT-232 in Combination With TL-895 for the Treatment of Relapsed or Refractory Myelofibrosis and KRT-232 for the Treatment of JAK Inhibitor Intolerant Myelofibrosis.
This study evaluates KRT-232 in Combination With TL-895 for the Treatment of Relapsed or Refractory Myelofibrosis and KRT-232 for the Treatment of JAK Inhibitor Intolerant Myelofibrosis.
Cohorts 1 and 2 will undergo dose finding and dose expansion. Eligible patients will be randomly assigned to an open cohort, either Cohort 1 or Cohort 2. Cohort 3 will be conducted as a dose expansion, independent of Cohorts 1 and 2. Cohort 1 will follow a 3+3 dose escalation design to determine the maximum tolerated dose (MTD)/maximum administered dose (MAD) and recommended Phase 2 dose (RP2D) of TL-895 administered QD in combination with KRT-232. A Safety Review Committee (SRC) will review the safety data during the dose escalation to decide on dose escalation and/or exploration of intermediate doses. Cohort 2 will follow a 3+3 dose escalation design to determine the MTD/MAD and recommended RP2D of TL-895 administered BID in combination with KRT-232. An SRC will review the safety data during the dose escalation to decide on dose escalation and/or exploration of intermediate doses. Cohort 3 will be conducted a 2-stage design. In stage 1, enrollment will continue until 15 evaluable patients have been enrolled. An SRC will review the data during the study and if there are ≥4 responders based on the futility criteria and safety data from Stage 1, Cohort 3 expansion will commence. If there are ≤3 patients responding to therapy, Cohort 3 will be terminated. Once expansion criteria have been met, Cohort 3 will be expanded to a total of 46 evaluable patients for Stage 2 analyses. ;
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