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CR: negative immunofixation on serum and urine, soft tissue plasmacytomas disappearance, \\< 5% plasma cells in bone marrow (BM). sCR: CR and normal serum free light chain ratio and no clonal cells in BM by immunohistochemistry. VGPR: Serum and urine M-protein detectable by immunofixation or ≥ 90% reduction in serum M-protein (urine M-protein level \\< 100 mg/24-hrs). PR: ≥ 50% reduction of serum M-protein and reduction in 24-hrs urinary M-protein by ≥ 90% or to \\< 200 mg/24-hours; MR: 25-49% reduction in serum M-protein and 50-89% reduction in 24-hr urinary M-protein (\\>200 mg/24-hrs); SD: not meeting criteria for CR, VGPR, PR, or PD; PD: ≥ 25% increase in serum or urine M-component, BM plasma cell percentages.","groups":[{"description":"Participants with MM received AMG 176 Dose A BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG000","title":"Part 1A Cohort 1 (MM): AMG 176 Dose A BIW"},{"description":"Participants with MM received AMG 176 Dose B IV BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG001","title":"Part 1A Cohort 2 (MM): AMG 176 Dose B BIW"},{"description":"Participants with MM received AMG 176 Dose C BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG002","title":"Part 1A Cohort 3 (MM): AMG 176 Dose C BIW"},{"description":"Participants with MM received AMG 176 Dose D BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG003","title":"Part 1A Cohort 4 (MM): AMG 176 Dose D BIW"},{"description":"Participants with MM received AMG 176 Dose E BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG004","title":"Part 1A Cohort 5 (MM): AMG 176 Dose E BIW"},{"description":"Participants with MM received AMG 176 Dose G BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG005","title":"Part 1A Cohort 6 (MM): AMG 176 Dose G BIW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose F BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG006","title":"Part 1A Cohort 7 (MM): AMG 176 Dose E Then Dose F BIW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose G BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG007","title":"Part 1A Cohort 8 (MM): AMG 176 Dose E Then Dose G BIW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose H BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG008","title":"Part 1A Cohort 9 (MM): AMG 176 Dose E Then Dose H BIW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose I BIW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG009","title":"Part 1A Cohort 10 (MM): AMG 176 Dose E Then Dose I BIW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose F QW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG010","title":"Part 1B Cohort 1 (MM): AMG 176 Dose E Then Dose F QW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose G QW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG011","title":"Part 1B Cohort 2 (MM): AMG 176 Dose E Then Dose G QW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose H QW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG012","title":"Part 1B Cohort 3 (MM): AMG 176 Dose E Then Dose H QW"},{"description":"Participants with MM received AMG 176 Dose E in cycle 1 week 1, then received Dose I QW. AMG 176 was administered as an IV infusion in a 4-week cycle.","id":"OG013","title":"Part 1B Cohort 4 (MM): AMG 176 Dose E Then Dose I QW"}],"paramType":"COUNT_OF_PARTICIPANTS","populationDescription":"The FAS included all participants who received at least 1 dose of AMG 176.","reportingStatus":"POSTED","timeFrame":"Day 1 cycle 1 to end of study; median duration from start of study treatment to end of study for all participants was 2.2 months","title":"Best Overall Response According to Revised International Working Group Uniform Response Criteria (IMWG-URC) for MM Participants (Parts 1A and 1B)","type":"SECONDARY","unitOfMeasure":"Participants"}