pdf   xlsx method abbreviations

metastatic/advanced mGC or mGEJC, pembrolizumab based treatment , 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) 0.90 [0.81, 1.01]< 10%3 studies (3/-)96.9 %some concernnot evaluable moderatecrucial-
progression or deaths (PFS) 1.28 [0.85, 1.92]< 193%3 studies (3/-)12.0 %some concernnot evaluable moderateimportant-
objective responses (ORR) 0.75 [0.27, 2.10]> 194%3 studies (3/-)29.1 %some concernnot evaluable moderatenon important-

safety endpoints 00

AE (any grade) 0.46 [0.20, 1.08]< 10%2 studies (2/-)96.3 %some concernnot evaluable moderatenon important-
AE (grade 3-4) 0.32 [0.03, 4.02]< 199%2 studies (2/-)80.9 %lownot evaluable highnon important-
AE leading to death (grade 5) 1.29 [0.44, 3.78]< 10%2 studies (2/-)32.0 %lownot evaluable highnon important-
AE leading to treatment discontinuation (any grade) 0.58 [0.07, 5.15]< 196%2 studies (2/-)68.7 %lownot evaluable highnon important-
TRAE (any grade) 0.31 [0.09, 1.08]< 194%3 studies (3/-)96.7 %some concernnot evaluable moderatenon important-
TRAE (grade 3-4) 0.31 [0.21, 0.47]< 10%1 study (1/-)100.0 %NAnot evaluable non important-
TRAE leading to death (grade 5) 2.84 [0.29, 27.42]< 10%1 study (1/-)18.6 %NAnot evaluable non important-
TRAE leading to discontinuation (any grade) 0.55 [0.24, 1.28]< 10%1 study (1/-)91.8 %NAnot evaluable non important-

TRAE (grade 3-4) endpoints 00

Alopecia TRAE (grade 3-4) 0.42 [0.05, 3.19]< 10%3 studies (3/-)79.9 %some concernnot evaluable moderatenon important-
Anaemia TRAE (grade 3-4) 0.37 [0.11, 1.24]< 184%3 studies (3/-)94.7 %some concernnot evaluable moderatenon important-
Asthenia TRAE (grade 3-4) 0.35 [0.04, 3.02]< 174%2 studies (2/-)83.0 %lownot evaluable highnon important-
Blood creatinine increased TRAE (grade 3-4) 0.73 [0.09, 6.29]< 10%2 studies (2/-)61.1 %some concernnot evaluable moderatenon important-
Colitis TRAE (grade 3-4) 0.16 [0.01, 3.11]< 10%1 study (1/-)88.6 %NAnot evaluable non important-
Constipation TRAE (grade 3-4) 0.97 [0.06, 15.52]< 10%2 studies (2/-)50.9 %some concernnot evaluable moderatenon important-
Decreased appetite TRAE (grade 3-4) 0.47 [0.13, 1.71]< 161%3 studies (3/-)87.4 %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) 0.50 [0.17, 1.46]< 146%3 studies (3/-)89.8 %lownot evaluable highnon important-
Dizziness TRAE (grade 3-4) 0.73 [0.09, 6.31]< 10%2 studies (2/-)61.0 %lownot evaluable highnon important-
Dry skin TRAE (grade 3-4) 0.97 [0.06, 15.52]< 10%2 studies (2/-)50.9 %some concernnot evaluable moderatenon important-
Dysgeusia TRAE (grade 3-4) 0.97 [0.06, 15.52]< 10%2 studies (2/-)50.9 %some concernnot evaluable moderatenon important-
Fatigue TRAE (grade 3-4) 0.47 [0.13, 1.79]< 178%3 studies (3/-)86.4 %some concernnot evaluable moderatenon 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) 0.94 [0.02, 47.47]< 10%1 study (1/-)51.2 %NAnot evaluable non 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) 1.59 [0.20, 12.36]< 10%3 studies (3/-)32.9 %some concernnot evaluable moderatenon important-
Infusion-related reactions TRAE (grade 3-4) 0.47 [0.02, 14.02]< 10%1 study (1/-)66.7 %NAnot evaluable non important-
Leucopenia TRAE (grade 3-4) 2.43 [0.23, 25.98]< 134%2 studies (2/-)23.2 %lownot evaluable highnon important-
Mucosal inflammation TRAE (grade 3-4) 0.20 [0.01, 4.07]< 177%2 studies (2/-)85.1 %lownot evaluable highnon important-
Nausea TRAE (grade 3-4) 0.33 [0.05, 2.28]< 175%3 studies (3/-)86.7 %some concernnot evaluable moderatenon important-
Neutropenia TRAE (grade 3-4) 0.05 [0.00, 2.06]< 190%3 studies (3/-)94.0 %some concernnot evaluable moderatenon important-
Palmar-plantar erythrodysaesthesia syndrome TRAE (grade 3-4) 0.40 [0.02, 8.98]< 178%2 studies (2/-)71.7 %lownot evaluable highnon 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) 0.63 [0.08, 5.09]< 144%3 studies (3/-)66.5 %some concernnot evaluable moderatenon important-
Peripheral sensory neuropathy TRAE (grade 3-4) 5.91 [0.29, 118.71]< 10%1 study (1/-)12.5 %NAnot evaluable non important-
Pneumonitis TRAE (grade 3-4) 3.77 [0.17, 84.06]< 10%1 study (1/-)20.4 %NAnot evaluable non important-
Pruritus TRAE (grade 3-4) 0.97 [0.06, 15.52]< 10%2 studies (2/-)50.9 %some concernnot evaluable moderatenon important-
Rash TRAE (grade 3-4) 1.44 [0.11, 18.83]< 10%2 studies (2/-)39.1 %lownot evaluable highnon important-
Severe skin reaction TRAE (grade 3-4) 1.88 [0.06, 56.28]< 10%1 study (1/-)36.0 %NAnot evaluable non important-
Stomatitis TRAE (grade 3-4) 0.34 [0.02, 6.97]< 177%2 studies (2/-)75.7 %lownot evaluable highnon important-
Thrombocytopenia TRAE (grade 3-4) 0.42 [0.03, 5.35]< 165%2 studies (2/-)74.5 %lownot evaluable highnon important-
Vomiting TRAE (grade 3-4) 0.22 [0.01, 5.00]< 179%2 studies (2/-)82.6 %lownot evaluable highnon important-
Weight decreased TRAE (grade 3-4) 1.22 [0.17, 8.73]< 10%2 studies (2/-)42.0 %lownot evaluable highnon 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.