{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","value":"2"},{"groupId":"OG001","value":"2"},{"groupId":"OG002","value":"2"},{"groupId":"OG003","value":"1"},{"groupId":"OG004","value":"0"},{"groupId":"OG005","value":"7"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"3"},{"groupId":"OG001","value":"3"},{"groupId":"OG002","value":"3"},{"groupId":"OG003","value":"3"},{"groupId":"OG004","value":"4"},{"groupId":"OG005","value":"33"}],"units":"Participants"}],"description":"Participants tested for immunogenicity to moxetumomab pasudotox prior to enrollment, before each cycle and at end of study. The neutralization assay measures the capacity of participant's plasma (antibodies) to inhibit the binding of moxetumomab pasudotox to its target, cluster of differentiation 22 (CD22), coated onto enzyme linked immunosorbent assay (ELISA) plates. Significant level of neutralizing antibody activity defined as the capacity of test plasma to inhibit \\>50% of the binding of CAT-8015 to CD22 using an ELISA-based method.","groups":[{"description":"Participants received IV 5 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued until complete response (CR), progressive disease (PD), initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG000","title":"5 mcg/kg"},{"description":"Participants received IV 10 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued cycles of therapy until CR, PD, initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG001","title":"10 mcg/kg"},{"description":"Participants received IV 20 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued cycles of therapy until CR, PD, initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG002","title":"20 mcg/kg"},{"description":"Participants received IV 30 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued cycles of therapy until CR, PD, initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG003","title":"30 mcg/kg"},{"description":"Participants received IV 40 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued cycles of therapy until CR, PD, initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG004","title":"40 mcg/kg"},{"description":"Participants received IV 50 mcg/kg moxetumomab pasudotox on Days 1, 3, and 5 of every 28-day cycle and continued cycles of therapy until CR, PD, initiation of alternative anticancer therapy, unacceptable toxicity, development of neutralizing antibodies, or another reason to discontinue therapy.","id":"OG005","title":"50 mcg/kg"}],"paramType":"COUNT_OF_PARTICIPANTS","populationDescription":"Safety population included all participants who received any treatment of moxetumomab pasudotox.","reportingStatus":"POSTED","timeFrame":"Up to end of treatment (approximately 8 years)","title":"Number of Participants With Positive Neutralizing Antibodies and Correlation to Antitumor Activity","type":"SECONDARY","unitOfMeasure":"Participants"}