{"denomUnitsSelected":"Participants","description":"Immunogenicity of daratumumab serum samples will be screened for antibodies binding to daratumumab and serum titer will also be determined from confirmed positive samples using validated immunoassay methods. Other immunogenicity analyses (eg, assessment of neutralizing capabilities) may be performed to further characterize the immune responses that are generated. Plasma samples will be screened for antibodies binding to rHuPH20 and will be assessed in confirmatory and titer assays as necessary","reportingStatus":"NOT_POSTED","timeFrame":"From randomization to the clinical cutoff date. Maximum follow up was 54.41 months","title":"Determine the Incidence of Anti-daratumumab Antibodies (Immunogenicity) for All Subjects Who Receive at Least 1 Dose of Daratumumab and Determine the Incidence of Anti-rHuPH20 Antibodies","type":"SECONDARY"}