{"classes":[{"categories":[{"measurements":[{"groupId":"OG000","lowerLimit":"28.1","upperLimit":"51.6","value":"40.0"},{"groupId":"OG001","lowerLimit":"24.3","upperLimit":"48.0","value":"36.1"},{"groupId":"OG002","lowerLimit":"13.6","upperLimit":"34.6","value":"23.4"}]}]}],"denoms":[{"counts":[{"groupId":"OG000","value":"65"},{"groupId":"OG001","value":"61"},{"groupId":"OG002","value":"62"}],"units":"Participants"}],"description":"OS18 was defined as the percentage of patients who were alive at 18 months after randomization per the Kaplan-Meier estimate of OS at 18 months.","dispersionType":"95% Confidence Interval","groups":[{"description":"During Chemotherapy:\n\nPatients received durvalumab (D) 1500 mg in combination with tremelimumab (T) 75 mg IV infusion Q3W for 4 doses/cycles (Weeks 0, 3, 6 and 9). For chemotherapy (EP), patients received etoposide (80-100 mg/m\\^2) with either carboplatin (area under the curve 5-6) or cisplatin (75-80 mg/m\\^2) IV infusion Q3W for 4 doses/cycles (Weeks 0, 3, 6 and 9).\n\nPost-Chemotherapy:\n\nPatients then continued to receive durvalumab 1500 mg IV infusion Q4W from Week 12 until PD, unless there was unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met. Patients also received an additional dose of tremelimumab 75 mg IV infusion post-chemotherapy (in combination with durvalumab) at Week 16 if they completed all 4 doses of durvalumab + tremelimumab during chemotherapy.","id":"OG000","title":"China Cohort: D + T + EP"},{"description":"During Chemotherapy:\n\nPatients received durvalumab (D) 1500 mg IV infusion Q3W for 4 doses/cycles (Weeks 0, 3, 6 and 9). For chemotherapy (EP), patients received etoposide (80-100 mg/m\\^2) with either carboplatin (area under the curve 5-6) or cisplatin (75-80 mg/m\\^2) IV infusion Q3W for 4 doses/cycles (Weeks 0, 3, 6 and 9).\n\nPost-Chemotherapy:\n\nPatients then continued to receive durvalumab 1500 mg IV infusion Q4W from Week 12 until PD, unless there was unacceptable toxicity, withdrawal of consent, or another discontinuation criterion was met.","id":"OG001","title":"China Cohort: D + EP"},{"description":"For chemotherapy (EP), patients received etoposide (80-100 mg/m\\^2) with either carboplatin (area under the curve 5-6) or cisplatin (75-80 mg/m\\^2) IV infusion Q3W for 4 doses/cycles (Weeks 0, 3, 6 and 9). An additional 2 doses of EP (at Weeks 12 and 15) could be given at the investigators' discretion if clinically indicated.","id":"OG002","title":"China Cohort: EP"}],"paramType":"NUMBER","populationDescription":"The China FAS included all randomized patients in the China cohort.","reportingStatus":"POSTED","timeFrame":"At 18 months post-randomization. Assessed at the China cohort second analysis DCO (02 November 2020).","title":"OS18 in the China Cohort","type":"SECONDARY","unitOfMeasure":"percentage of patients"}