The main purpose of this study is to evaluate the efficacy and safety of sintilimab plus ramucirumab compared to stand of care first-line chemotherapy in participants with advanced gastric or esophagogastric adenocarcinoma.
This is a randomized, multicenter, phase 3 study to evaluate the efficacy and safety of sintilimab combined with ramucirumab as compared to stand of care chemotherapy for the first-line treatment of PD-L1 positive, unresectable locally advanced or metastatic gastric or gastroesophageal junction adenocarcinoma. The primary endpoint of this study is OS of the ITT population.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
36
Sun Yat-sen University Cancer Center
Guangzhou, China
Safety and tolerability of sintilimab plus ramucirumab,Overall survival (OS)
OS is time from the date of randomization to the date of death from any cause. If the participant is alive at the cutoff for analysis (or was lost to follow-up), OS data is censored for analysis on the last date the participant is known to be alive.
Time frame: Randomization to Death from Any Cause, up to 60 months
Progression-free Survival (PFS)
PFS is time from the date of randomization to the date of radiographic documentation of progression (per RECIST v.1.1) or the date of death due to any cause, whichever is earlier. If a participant is not known to have died or have radiographic documented progression as of the data cutoff date for the analysis, the PFS time is censored at the last adequate tumor assessment date.
Time frame: Randomization to Radiological Disease Progression or Death from Any Cause (Up to 24 Months)
Objective Response Rate [ORR] (Percentage of Participants With Complete Response [CR] or Partial Response [PR])
Response is defined using RECIST v1.1. ORR is calculated as sum of the number of participants with CR and PR divided by the number of evaluable participants multiplied by 100.
Time frame: Randomization to Disease Progression (Up To 24 Months)
Disease Control Rate [DCR] (Percentage of Participants With Complete Response [CR], Partial Response [PR] or Stable Disease [SD])
Response is defined using RECIST v1.1. DCR is calculated as sum of the number of participants with CR, PR, and SD divided by the number of evaluable participants multiplied by 100.
Time frame: Randomization to Disease Progression (Up To 24 Months)
Duration of Response (DoR)
DoR is time from the date of first radiographic documentation of CR or PR to the date of first radiographic documentation of PD or death due to any cause. If a participant is not known to have died or have radiographically documented PD as of the data inclusion cutoff date, DOR is censored at the date of the last adequate tumor assessment.
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Administered IV
Administered IV
Administered orally
Time frame: Date of Complete Response (CR) or Partial Response (PR) to Date of Objective Disease Progression or Death Due to Any Cause (Up To 24 Months)
Number of participants experiencing an adverse event (AE)
An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have a causal relationship with this treatment. The number of participants who experienced an AE is reported for each arm according to the treatment received.
Time frame: Randomization to end of study (up to 24 months)