RAINBOW trial: Efficacy overview
CYRAMZA plus paclitaxel significantly extended overall survival1
RAINBOW OVERALL SURVIVAL: MEDIAN – MONTHS (95% CI)1
MAJOR OUTCOME MEASURE
CI=confidence interval; OS=overall survival.
- The percentage of deaths at the time of analysis was 78% (256 patients) and 78% (260 patients) in the CYRAMZA plus paclitaxel and placebo plus paclitaxel treatment arms, respectively1
The phase III RAINBOW trial evaluated the efficacy and safety of CYRAMZA plus paclitaxel vs placebo plus paclitaxel in patients with locally advanced or metastatic gastric or GEJ adenocarcinoma with disease progression on or after prior fluoropyrimidine- and platinum-containing chemotherapy. Major efficacy outcome measure was overall survival. Supportive efficacy outcome measures were progression-free survival and objective response rate. All patients were Eastern Cooperative Oncology Group performance status 0 or 1. Prior to enrollment, 97% of patients had progressed during treatment or within 4 months after the last dose of first-line chemotherapy for metastatic disease. Twenty-five percent of patients had received anthracycline in combination with platinum/fluoropyrimidine therapy, while 75% did not. Patients were randomized 1:1 to CYRAMZA 8 mg/kg (n=330) or placebo (n=335) every 2 weeks (on days 1 and 15) of each 28-day cycle. Patients in both arms received paclitaxel 80 mg/m2 on days 1, 8, and 15 of each 28-day cycle.1,2