This is a phase I/II study of MLN9708 for the prophylaxis of chronic graft-versus-host-disease (GVHD) in patients undergoing allogeneic hematopoietic stem cell transplantation (HSCT). During the phase I portion, patients undergoing both sibling and unrelated donor transplantation will be enrolled on the same arm to determine the dose-limiting toxicity (DLT) and maximum-tolerated dose (MTD). During the phase II portion of the trial, patients will be enrolled into two separate and independent cohorts: a) Matched sibling transplants and b) Unrelated donors transplants. Both cohorts will be enrolled and analyzed separately.
* For potential candidates for this trial, the recommended acute GVHD prophylaxis is a tacrolimus, methotrexate and atorvastatin combination. However, any acute GVHD prophylaxis regimen at the discretion of treating physician (not involving in vivo or ex vivo T-cell depletion, cluster of differentiation 34 (CD34) + cell selection, or post-HCT cyclophosphamide) will be permitted. * During the phase I portion for chronic GVHD prophylaxis, four doses of MLN9708 will be administered orally (to patients undergoing either matched sibling or unrelated donor transplantation) on days 1, 8, 15 and 22, starting on day +60 to +74 post allogeneic HCT. If zero of three patients experienced DLT at dose level 2, then it would be considered a MTD. If two or more patients experienced a DLT, dose escalation would halt and the dose level would be expanded to six patients to determine the MTD. If the dose level below already has six patients, enrolled, then it will be considered the MTD. If two or more patients experience DLT on first dose level (i.e., dose level 1), then, patients will be enrolled on dose level -1. No intrapatient dose escalation will be permitted. * MTD is defined at maximum dose level with fewer than two of six patients experiencing DLT. * The phase II portion will utilize the MTD for MLN9708, determined from phase I portion of the study. In phase II, patients will be enrolled in two independent cohorts of matched sibling and matched unrelated donor transplants. * During the phase II portion, for chronic GVHD prophylaxis, four doses of MLN9708 will be administered orally on days 1, 8, 15 and 22, starting on day +60 to +90 post allogeneic HCT.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
68
Froedtert Hospital and the Medical College of Wisconsin
Milwaukee, Wisconsin, United States
Maximum-tolerated Dose of MLN9708.
Maximum-tolerated dose of ixazomib (MLN9708) will be determined from the incidence of dose limiting toxicities at each dosage. Results for both escalation phase cohorts (3.0 mg and 4.0 mg) were used to determine the maximum tolerated dose.
Time frame: 4 weeks
Cumulative Incidence of Chronic Graft-versus-host Disease.
The number of participants who have graft-versus-host disease. The two expansion phase cohorts (3.0 mg and 4.0 mg) were not included in this analysis.
Time frame: 1 year
Number of Participants Experiencing Dose-limiting Toxicity of MLN9708
A 3+3 design will be employed. At each dose, three patients will be initially evaluated. If no dose limiting toxicities are observed, the MLN9708 dose will be increased; if one dose limiting toxicity is observed, three additional patients will be treated at that dose. A dose at which two DLTs are observed in three or six patients are judged to be too toxic, the lower dose will be defined as the maximally tolerated dose (MTD).
Time frame: 4 weeks
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