{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","value":"3"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"14"}],"units":"Participants"}],"description":"The RP2D of ixazomib was determined after the evaluation of the available data from the phase 1 portion of the trial which included, but was not limited to analyses of efficacy results, toxicity characterization, all grades peripheral neuropathy, and treatment discontinuation. The maximum number of cycles received was 83 cycles (approximately up to 2037 days).","groups":[{"description":"Ixazomib 3 mg or 3.7 mg, capsules, orally, twice-weekly on Days 1, 4, 8, and 11, lenalidomide 25 mg, capsules, orally, once daily on Days 1-14, dexamethasone 20 mg, capsules, orally, once daily on Days 1, 2, 4, 5, 8, 9, 11, and 12 in Cycle 1-8 and dexamethasone 10 mg, capsules, orally, once daily on Days 1, 2, 4, 5, 8, 9, 11, and 12 in Cycle 9-16 in 21-day treatment cycles for up to 16 cycles in the absence of disease progression or unacceptable toxicity as induction therapy during Phase 1. Participants with stable or responding disease continued receiving ixazomib (MLN9708) orally, twice weekly on Days 1, 4, 8, and 11 in 21-day treatment cycles as maintenance therapy at the dose tolerated at the end of induction until progressive disease or unacceptable toxicity. The maximum number of cycles received was 83 cycles (approximately up to 2037 days).","id":"OG000","title":"Phase 1: All Participants"}],"paramType":"NUMBER","populationDescription":"Safety population included all participants who received at least 1 dose of any study drug.","reportingStatus":"POSTED","timeFrame":"Cycle 1 (21 days)","title":"Phase 1: Recommended Phase 2 Dose (RP2D)","type":"PRIMARY","unitOfMeasure":"mg"}