BSC in Gastric Cancer
Abbreviations: CI = confidence interval
Figure 1: Kaplan-Meier Curves of Overall Survival - CYRAMZA plus BSC versus Placebo plus BSC in Gastric Cancer
Study 2 was a multinational, randomized, double-blind study of CYRAMZA plus paclitaxel versus placebo plus paclitaxel that randomized (1:1) 665 patients with locally advanced or metastatic gastric cancer (including adenocarcinoma of the gastro-esophageal junction) who previously received platinum- and fluoropyrimidine-containing chemotherapy. Patients were required to have experienced disease progression during, or within 4 months after the last dose of first-line therapy. Patients were also required to have ECOG PS of 0 or 1. Randomization was stratified by geographic region, time to progression from the start of first-line therapy (<6 months versus ≥6 months) and disease measurability.
Patients were randomized to receive either CYRAMZA 8 mg/kg (n=330) or placebo (n=335) as an intravenous infusion every 2 weeks (on days 1 and 15) of each 28-day cycle. Patients in both arms received paclitaxel 80 mg/m2 by intravenous infusion on days 1, 8, and 15 of each 28-day cycle. Prior to administration of each dose of paclitaxel, patients were required to have adequate hematopoietic and hepatic function. The paclitaxel dose was permanently reduced in increments of 10 mg/m2 for a maximum of two dose reductions for Grade 4 hematologic toxicity or Grade 3 paclitaxel-related non-hematologic toxicity. The major efficacy outcome measure was overall survival and the supportive efficacy outcome measures were progression-free survival and objective response rate.
Demographics and baseline characteristics were similar between treatment arms including the following: Median age was 61 years; 71% of patients were men; 61% were White, 35% Asian; the ECOG PS was 0 for 39% of patients, 1 for 61% of patients; 78% of patients had measurable disease; 79% of patients had gastric cancer; and 21% had adenocarcinoma of the GEJ. Two-thirds of the patients experienced disease progression while on first-line therapy (67%) and 25% of patients received an anthracycline in combination with platinum/fluoropyrimidine combination therapy.
Overall survival, progression-free survival, and objective response rate were statistically significantly improved in patients randomized to receive CYRAMZA plus paclitaxel compared to patients randomized to receive placebo plus paclitaxel. Efficacy results are shown in Table 7 and Figure 2.
Table 7: Randomized Trial of CYRAMZA plus Paclitaxel versus Placebo plus Paclitaxel in Gastric Cancer
Abbreviations: CI = confidence interval, CR = complete response, PR = partial response, CMH = Cochran-Mantel-Haenszel
Figure 2: Kaplan-Meier Curves of Overall Survival - CYRAMZA plus Paclitaxel versus Placebo plus Paclitaxel in Gastric Cancer
14.2 Non-Small Cell Lung Cancer
Study 3 was a multinational, randomized, double-blind, study of CYRAMZA plus docetaxel versus placebo plus docetaxel, that randomized (1:1) 1253 patients with NSCLC with disease progression on or after one platinum-based therapy for locally advanced or metastatic disease. The major efficacy outcome measure was overall survival and the supportive efficacy outcome measures were progression-free survival and objective response rate. Patients were also required to have ECOG PS 0 or 1. Patients were randomized to receive either CYRAMZA at 10 mg/kg or placebo by intravenous infusion, in combinat |
