{"analyses":[{"groupDescription":"The null hypothesis is that there is no difference in the proportions of participants with chronic GVHD between the Ixazomib and Placebo arms during 21 months post-randomization, with death prior to chronic GVHD treated as a competing risk. Cumulative incidences are compared between treatment arms using Gray's test.","groupIds":["OG000","OG001"],"nonInferiorityType":"SUPERIORITY","pValue":"1.0","pValueComment":"Statistical significance was determined using a pre-specified one-sided threshold of 0.05.","statisticalMethod":"Gray's Test"}],"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"46.8","upperLimit":"82.9","value":"68.6"},{"groupId":"OG001","lowerLimit":"43.3","upperLimit":"78.3","value":"63.6"}]}],"title":"12 Months Post-randomization"},{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"46.8","upperLimit":"82.9","value":"68.6"},{"groupId":"OG001","lowerLimit":"43.3","upperLimit":"78.3","value":"63.6"}]}],"title":"21 Months Post-randomization"}],"denoms":[{"counts":[{"groupId":"OG000","value":"21"},{"groupId":"OG001","value":"22"}],"units":"Participants"}],"description":"Cumulative incidences of chronic GVHD were determined using the Aalen-Johansen estimator. Death prior to chronic GVHD is treated as the competing risk. Cumulative incidences are compared between treatment arms using Gray's test. Data of chronic GVHD were collected from providers and chart review according to the recommendations of the 2014 NIH Consensus Criteria. Eight organs are scored on a 0-3 scale to reflect degree of chronic GVHD involvement; 3 indicates the worst symptom. Liver and pulmonary function test results and use of systemic therapy for treatment of chronic GVHD are also recorded.","dispersionType":"90% Confidence Interval","groups":[{"description":"Allogeneic HSCT and Fludarabine/Melphalan/Bortezomib conditioning followed by Ixazomib maintenance\n\nAllogeneic HSCT: Eligible patients with a Human Leukocyte Antigen (HLA)-matched related or unrelated donor will undergo allogeneic hematopoietic stem cell transplant at Day 0. For GVHD prophylaxis, patients will be given Tacrolimus from Day -3 until at least 6 months following initiation, at an intravenous daily dose of 0.015 mg/kg. This will be combined with an intravenous administration of Methotrexate at 5 mg/m2 on Days +1, +3, +6, and +11.\n\nFludarabine: Patients will receive conditioning treatment before and after HSCT. Fludarabine will be given at 30 mg/m2 intravenously on Day -6 through Day -3.\n\nMelphalan: Melphalan will be given at 70 mg/m2 intravenously on Days -4 and -3.\n\nBortezomib: Bortezomib will be administered at 1.3 mg/m2 intravenously on Day -3.\n\nIxazomib: Between 60 and 120 days following HSCT, patients randomized to the experimental arm will receive Ixazomib maintenance. Maintenance will begin at 3-mg oral doses on Days 1, 8, and 15 of a 28-day cycle. This will increase to 4-mg doses on the same cycle schedule, following successful completion of 3 cycles at the previous dosage, for a total of 12 cycles.","id":"OG000","title":"Ixazomib Maintenance"},{"description":"Allogeneic HSCT and Fludarabine/Melphalan/Bortezomib conditioning followed by placebo maintenance.\n\nAllogeneic HSCT: Eligible patients with a Human Leukocyte Antigen (HLA)-matched related or unrelated donor will undergo allogeneic hematopoietic stem cell transplant at Day 0. For GVHD prophylaxis, patients will be given Tacrolimus from Day -3 until at least 6 months following initiation, at an intravenous daily dose of 0.015 mg/kg. This will be combined with an intravenous administration of Methotrexate at 5 mg/m2 on Days +1, +3, +6, and +11.\n\nFludarabine: Patients will receive conditioning treatment before and after HSCT. Fludarabine will be given at 30 mg/m2 intravenously on Day -6 through Day -3.\n\nMelphalan: Melphalan will be given at 70 mg/m2 intravenously on Days -4 and -3.\n\nBortezomib: Bortezomib will be administered at 1.3 mg/m2 intravenously on Day -3.\n\nPlacebo: Between 60 and 120 days following HSCT, patients randomized to the control group will be given 3 mg of placebo orally on Days 1, 8, and 15 of a 28-day cycle. This will increase to 4-mg doses on the same cycle schedule following successful completion of 3 cycles of placebo maintenance at the 3-mg dose. This will continue for a total of 12 cycles.","id":"OG001","title":"Placebo"}],"paramType":"NUMBER","populationDescription":"All randomized participants were included in the analysis.","reportingStatus":"POSTED","timeFrame":"12 months and 21 months post-randomization","title":"Percentage of Participants With Chronic GVHD","type":"SECONDARY","unitOfMeasure":"percentage of participants"}