{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","value":"0"},{"groupId":"OG001","value":"0"},{"groupId":"OG002","value":"0"},{"groupId":"OG003","value":"0"},{"groupId":"OG004","value":"0"},{"groupId":"OG005","value":"0"},{"groupId":"OG006","value":"0"},{"groupId":"OG007","value":"0"},{"groupId":"OG008","value":"0"},{"groupId":"OG009","value":"0"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"1"},{"groupId":"OG001","value":"1"},{"groupId":"OG002","value":"4"},{"groupId":"OG003","value":"4"},{"groupId":"OG004","value":"4"},{"groupId":"OG005","value":"3"},{"groupId":"OG006","value":"4"},{"groupId":"OG007","value":"8"},{"groupId":"OG008","value":"3"},{"groupId":"OG009","value":"6"}],"units":"Participants"}],"description":"Serum samples were collected for the determination of anti-GSK2857916 antibodies (ADA) using a validated electrochemiluminescent (ECL) immunoassay. The assay involved screening, confirmation and titration steps. If serum samples contained ADA, they were further analyzed for the specificity of antibodies by a confirmation assay. Confirmed positive samples were titrated to obtain the titers of antibodies. The number of participants with at least one confirmed positive ADA at any time post-Baseline is presented.","groups":[{"description":"Participants were administered a dose of 0.03 milligrams per kilogram (mg/kg) GSK2857916 as intravenous (IV) infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG000","title":"Part 1: GSK2857916 0.03 mg/kg"},{"description":"Participants were administered a dose of 0.06 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG001","title":"Part 1: GSK2857916 0.06 mg/kg"},{"description":"Participants were administered a dose of 0.12 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG002","title":"Part 1: GSK2857916 0.12 mg/kg"},{"description":"Participants were administered a dose of 0.24 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG003","title":"Part 1: GSK2857916 0.24 mg/kg"},{"description":"Participants were administered a dose of 0.48 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG004","title":"Part 1: GSK2857916 0.48 mg/kg"},{"description":"Participants were administered a dose of 0.96 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG005","title":"Part 1: GSK2857916 0.96 mg/kg"},{"description":"Participants were administered a dose of 1.92 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG006","title":"Part 1: GSK2857916 1.92 mg/kg"},{"description":"Participants were administered a dose of 2.50 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG007","title":"Part 1: GSK2857916 2.50 mg/kg"},{"description":"Participants were administered a dose of 3.40 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG008","title":"Part 1: GSK2857916 3.40 mg/kg"},{"description":"Participants were administered a dose of 4.60 mg/kg GSK2857916 as IV infusion once every three weeks for a maximum of 16 cycles (1 cycle= 21 days).","id":"OG009","title":"Part 1: GSK2857916 4.60 mg/kg"}],"paramType":"COUNT_OF_PARTICIPANTS","populationDescription":"Part 1 Population","reportingStatus":"POSTED","timeFrame":"Up to 21.6 months (maximum duration of follow-up from first dose to last contact or death)","title":"Number of Participants With at Least One Confirmed Positive Post-Baseline Anti-drug Antibody Result- Part 1","type":"SECONDARY","unitOfMeasure":"Participants"}