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mGC or mGEJC - L2 - all population, anti-PD-(L)1 , meta-analysis of study results

Outcome Relative effect 95%CI LoD Trt. better when I2 k (RCT/OBS) Bayesian probability Overall ROB Publication bias Degree of certainty Endpoint importance Published MA

efficacy endpoints 00

deaths (OS) 0.87 [0.64, 1.18]< 186%3 studies (3/-)81.8 %some concernnot evaluable moderatecrucial-
deaths (OS) (extension) 0.62 [0.51, 0.76]< 10%1 study (1/-)100.0 %NAnot evaluable important-
PFS (extension) 0.60 [0.48, 0.74]< 10%1 study (1/-)100.0 %NAnot evaluable important-
progression or deaths (PFS) 1.16 [0.62, 2.16]< 196%3 studies (3/-)32.4 %some concernnot evaluable moderateimportant-
DCR 0.86 [0.17, 4.45]> 196%2 studies (2/-)43.0 %lownot evaluable highnon important-
objective responses (ORR) 1.32 [0.32, 5.44]> 173%3 studies (3/-)65.1 %some concernnot evaluable moderatenon important-

safety endpoints 00

AE (any grade) 1.93 [1.10, 3.38]< 10%1 study (1/-)1.1 %NAnot evaluable non important-
AE (grade 3-4) 1.10 [0.75, 1.62]< 10%1 study (1/-)30.7 %NAnot evaluable non important-
AE leading to death (grade 5) 0.65 [0.37, 1.12]< 10%1 study (1/-)94.0 %NAnot evaluable non important-
AE leading to treatment discontinuation (any grade) 0.93 [0.45, 1.92]< 10%1 study (1/-)57.7 %NAnot evaluable non important-
AE leading to treatment discontinuation (grade 3-4) 0.69 [0.29, 1.66]< 10%1 study (1/-)79.5 %NAnot evaluable non important-
SAE (any grade) 0.75 [0.52, 1.10]< 10%1 study (1/-)92.6 %NAnot evaluable non important-
SAE (grade 3-4) 0.92 [0.61, 1.40]< 10%1 study (1/-)64.6 %NAnot evaluable non important-
STRAE (any grade) 2.13 [0.96, 4.71]< 10%1 study (1/-)3.2 %NAnot evaluable non important-
STRAE (grade 3-4) 2.67 [0.90, 7.91]< 10%1 study (1/-)3.9 %NAnot evaluable non important-
TRAE (any grade) 0.53 [0.13, 2.10]< 197%3 studies (3/-)81.8 %some concernnot evaluable moderatenon important-
TRAE (grade 3-4) 0.53 [0.16, 1.73]< 192%3 studies (3/-)85.3 %some concernnot evaluable moderatenon important-
TRAE leading to death (grade 5) 1.39 [0.40, 4.81]< 10%3 studies (3/-)30.3 %lownot evaluable highnon important-
TRAE leading to discontinuation (any grade) 0.71 [0.40, 1.25]< 10%3 studies (3/-)88.4 %some concernnot evaluable moderatenon important-
TRAE leading to discontinuation (grade 3-4) 0.65 [0.14, 2.92]< 10%1 study (1/-)71.4 %NAnot evaluable non important-

TRAE (grade 3-4) endpoints 00

Alopecia TRAE (grade 3-4) 0.30 [0.03, 3.29]< 10%2 studies (2/-)83.5 %some concernnot evaluable moderatenon important-
Anaemia TRAE (grade 3-4) 0.21 [0.02, 2.39]< 165%2 studies (2/-)89.3 %some concernnot evaluable moderatenon important-
Asthenia TRAE (grade 3-4) 0.19 [0.02, 1.63]< 10%1 study (1/-)93.4 %NAnot evaluable non important-
Colitis TRAE (grade 3-4) 0.35 [0.04, 3.29]< 10%2 studies (2/-)82.1 %some concernnot evaluable moderatenon important-
Decreased appetite TRAE (grade 3-4) 1.02 [0.15, 7.11]< 135%3 studies (3/-)49.2 %some concernnot evaluable moderatenon important-
Diabetes TRAE (grade 3-4) 0.94 [0.02, 47.47]< 10%1 study (1/-)51.2 %NAnot evaluable non important-
Diarrhoea TRAE (grade 3-4) 0.47 [0.10, 2.15]< 14%3 studies (3/-)83.4 %some concernnot evaluable moderatenon important-
Fatigue TRAE (grade 3-4) 0.49 [0.22, 1.09]< 10%3 studies (3/-)96.0 %some concernnot evaluable moderatenon important-
Febrile neutropenia TRAE (grade 3-4) 0.08 [0.00, 1.40]< 10%1 study (1/-)95.7 %NAnot evaluable non important-
Hepatitis TRAE (grade 3-4) 7.60 [0.40, 144.43]< 10%1 study (1/-)9.1 %NAnot evaluable non important-
Hyperthyroidism TRAE (grade 3-4) 0.68 [0.04, 10.84]< 10%2 studies (2/-)60.8 %some concernnot evaluable moderatenon important-
Hypophysitis TRAE (grade 3-4) 3.77 [0.17, 84.06]< 10%1 study (1/-)20.4 %NAnot evaluable non important-
Hypothyroidism TRAE (grade 3-4) 4.94 [0.12, 203.36]< 166%2 studies (2/-)20.4 %some concernnot evaluable moderatenon important-
Increase AST TRAE (grade 3-4) 1.40 [0.36, 5.43]< 10%2 studies (2/-)31.6 %some concernnot evaluable moderatenon important-
Increased ALT TRAE (grade 3-4) 0.75 [0.19, 3.00]< 10%2 studies (2/-)65.5 %some concernnot evaluable moderatenon important-
Increased lipase level TRAE (grade 3-4) 0.48 [0.04, 5.32]< 10%1 study (1/-)72.4 %NAnot evaluable non important-
Infusion-related reactions TRAE (grade 3-4) 0.95 [0.09, 10.52]< 10%2 studies (2/-)51.6 %some concernnot evaluable moderatenon important-
Maculopapular rash TRAE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Nausea TRAE (grade 3-4) 0.38 [0.07, 2.13]< 10%3 studies (3/-)86.3 %some concernnot evaluable moderatenon important-
Neutropenia TRAE (grade 3-4) 0.02 [0.00, 0.12]< 10%2 studies (2/-)100.0 %some concernnot evaluable moderatenon important-
Pancreatitis TRAE (grade 3-4) 0.47 [0.02, 14.02]< 10%1 study (1/-)66.7 %NAnot evaluable non important-
Peripheral neuropathy TRAE (grade 3-4) 0.08 [0.00, 1.38]< 10%1 study (1/-)95.8 %NAnot evaluable non important-
Pneumonitis TRAE (grade 3-4) 2.04 [0.21, 20.20]< 10%2 studies (2/-)27.2 %some concernnot evaluable moderatenon important-
Pruritus TRAE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Pyrexia TRAE (grade 3-4) 0.98 [0.03, 29.24]< 10%1 study (1/-)50.6 %NAnot evaluable non important-
Rash TRAE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Severe skin reaction TRAE (grade 3-4) 1.88 [0.06, 56.28]< 10%1 study (1/-)36.0 %NAnot evaluable non important-
Thyroiditis TRAE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Vomiting TRAE (grade 3-4) 0.24 [0.01, 5.32]< 10%1 study (1/-)81.4 %NAnot evaluable non important-
Weight decreased TRAE (grade 3-4) 0.07 [0.00, 1.17]< 10%1 study (1/-)96.6 %NAnot evaluable non important-

AE (grade 3-4) endpoints 00

Abdominal pain AE (grade 3-4) 1.14 [0.43, 3.04]< 10%1 study (1/-)39.3 %NAnot evaluable non important-
Anaemia AE (grade 3-4) 0.97 [0.54, 1.75]< 10%1 study (1/-)53.7 %NAnot evaluable non important-
Asthenia AE (grade 3-4) 2.48 [0.54, 11.47]< 10%1 study (1/-)12.3 %NAnot evaluable non important-
Back pain AE (grade 3-4) 0.73 [0.12, 4.41]< 10%1 study (1/-)63.4 %NAnot evaluable non important-
Constipation AE (grade 3-4) 0.98 [0.03, 29.24]< 10%1 study (1/-)50.6 %NAnot evaluable non important-
Decreased appetite AE (grade 3-4) 0.54 [0.20, 1.42]< 10%1 study (1/-)89.5 %NAnot evaluable non important-
Diarrhoea AE (grade 3-4) 1.96 [0.22, 17.71]< 10%1 study (1/-)27.5 %NAnot evaluable non important-
Dyspepsia AE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Dyspnoea AE (grade 3-4) 1.96 [0.09, 43.66]< 10%1 study (1/-)33.8 %NAnot evaluable non important-
Fatigue AE (grade 3-4) 0.29 [0.07, 1.21]< 10%1 study (1/-)95.5 %NAnot evaluable non important-
Increase AST AE (grade 3-4) 1.48 [0.47, 4.67]< 10%1 study (1/-)25.2 %NAnot evaluable non important-
Increased ALT AE (grade 3-4) 1.31 [0.34, 5.00]< 10%1 study (1/-)34.7 %NAnot evaluable non important-
Nausea AE (grade 3-4) 0.24 [0.02, 2.68]< 10%1 study (1/-)87.4 %NAnot evaluable non important-
Peripheral oedema AE (grade 3-4) 0.98 [0.03, 29.24]< 10%1 study (1/-)50.6 %NAnot evaluable non important-
Pruritus AE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Pyrexia AE (grade 3-4) 1.47 [0.15, 14.22]< 10%1 study (1/-)37.1 %NAnot evaluable non important-
Rash AE (grade 3-4) 0.49 [0.01, 24.66]< 10%1 study (1/-)63.8 %NAnot evaluable non important-
Vomiting AE (grade 3-4) 0.65 [0.14, 2.92]< 10%1 study (1/-)71.4 %NAnot evaluable non important-
Weight decreased AE (grade 3-4) 0.98 [0.03, 29.24]< 10%1 study (1/-)50.6 %NAnot evaluable non important-

LoD: level of statistical demonstration: Statistically conclusive: statistically significant with a strict control of overall risk of type 1 error (statistically demonstrated), does not take into account the risk of bias; suggested: nominally statistically significant but without a strict control of overall risk of type 1 error; inconclusive: not nominally statistically significant; safety concerns;
Bayesian probability: Bayesian posterior probability of treatment effect (computed with a noninformative prior); ROB: risk of bias; k: number of studies; published MA: number of published meta-analysis on the same topic; degree of certainty adapted from GRADE. Trt. better when: indicates when the relative treatment effect shows that the studied treatment is better than control.