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Extensive stage SCLC (Es-SCLC), immune chekpoint inhibitors versus platinum-based chemotherapy, 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) 0.78 [0.67, 0.90]< 10%2 studies (2/-)100.0 %some concernnot evaluable moderatecrucial-
deaths (OS) (extension) 0.75 [0.62, 0.91]< 10%1 study (1/-)99.8 %NAnot evaluable important-
PFS (extension) 0.80 [0.66, 0.96]< 10%1 study (1/-)99.0 %NAnot evaluable important-
progression or deaths (PFS) 0.81 [0.71, 0.92]< 10%2 studies (2/-)99.9 %some concernnot evaluable moderateimportant-
objective responses (ORR) 1.28 [0.80, 2.04]> 168%2 studies (2/-)85.2 %some concernnot evaluable moderatenon important-

safety endpoints 00

AE (any grade) 2.22 [0.89, 5.55]< 10%2 studies (2/-)4.4 %some concernnot evaluable moderatenon important-
AE (grade 3-4) 1.00 [0.78, 1.29]< 10%2 studies (2/-)48.4 %some concernnot evaluable moderatenon important-
AE leading to death (grade 5) 1.31 [0.61, 2.82]< 157%2 studies (2/-)24.5 %some concernnot evaluable moderatenon important-
AE leading to treatment discontinuation (any grade) 1.64 [0.64, 4.22]< 183%2 studies (2/-)15.1 %some concernnot evaluable moderatenon important-
AE leading to treatment discontinuation (grade 3-4) 1.00 [0.35, 2.90]< 10%1 study (1/-)49.7 %NAnot evaluable non important-
SAE (any grade) 0.79 [0.55, 1.14]< 10%1 study (1/-)89.5 %NAnot evaluable non important-
SAE (grade 3-4) 0.77 [0.51, 1.15]< 10%1 study (1/-)90.3 %NAnot evaluable non important-
STRAE (any grade) 0.99 [0.45, 2.15]< 184%2 studies (2/-)51.4 %some concernnot evaluable moderatenon important-
STRAE (grade 3-4) 0.82 [0.33, 2.01]< 186%2 studies (2/-)66.9 %some concernnot evaluable moderatenon important-
TRAE (any grade) 0.98 [0.66, 1.46]< 10%2 studies (2/-)54.5 %some concernnot evaluable moderatenon important-
TRAE (grade 3-4) 0.94 [0.65, 1.38]< 159%2 studies (2/-)61.5 %some concernnot evaluable moderatenon important-
TRAE leading to death (grade 5) 4.14 [1.36, 12.60]< 10%2 studies (2/-)0.6 %some concernnot evaluable moderatenon important-
TRAE leading to discontinuation (any grade) 2.13 [0.68, 6.69]< 181%2 studies (2/-)9.8 %some concernnot evaluable moderatenon important-
TRAE leading to discontinuation (grade 3-4) 2.46 [0.27, 22.20]< 182%2 studies (2/-)21.2 %some concernnot evaluable moderatenon important-

TRAE (grade 3-4) endpoints 00

Adrenal insufficiency TRAE (grade 3-4) 3.12 [0.29, 33.82]< 10%2 studies (2/-)17.6 %some concernnot evaluable moderatenon important-
Alopecia TRAE (grade 3-4) 0.96 [0.20, 4.55]< 10%2 studies (2/-)52.0 %some concernnot evaluable moderatenon important-
Anaemia TRAE (grade 3-4) 0.60 [0.41, 0.88]< 10%2 studies (2/-)99.6 %some concernnot evaluable moderatenon important-
Arthritis TRAE (grade 3-4) 1.00 [0.02, 50.78]< 10%1 study (1/-)49.9 %NAnot evaluable non important-
Asthenia TRAE (grade 3-4) 1.25 [0.33, 4.72]< 10%2 studies (2/-)37.0 %some concernnot evaluable moderatenon important-
Constipation TRAE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Decreased appetite TRAE (grade 3-4) 1.49 [0.24, 9.19]< 10%2 studies (2/-)33.4 %some concernnot evaluable moderatenon important-
Diabetes TRAE (grade 3-4) 5.83 [0.69, 49.36]< 10%2 studies (2/-)5.4 %some concernnot evaluable moderatenon important-
Diarrhoea TRAE (grade 3-4) 2.17 [0.63, 7.44]< 10%2 studies (2/-)10.9 %some concernnot evaluable moderatenon important-
Fatigue TRAE (grade 3-4) 0.67 [0.19, 2.37]< 10%2 studies (2/-)73.5 %some concernnot evaluable moderatenon important-
Febrile neutropenia TRAE (grade 3-4) 0.72 [0.43, 1.23]< 10%2 studies (2/-)88.3 %some concernnot evaluable moderatenon important-
Hyperthyroidism TRAE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Hypophysitis TRAE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Hypothyroidism TRAE (grade 3-4) 2.36 [0.21, 26.89]< 10%2 studies (2/-)24.7 %some concernnot evaluable moderatenon important-
Increased lipase level TRAE (grade 3-4) 6.52 [1.46, 29.18]< 10%2 studies (2/-)0.7 %some concernnot evaluable moderatenon important-
Leucopenia TRAE (grade 3-4) 1.08 [0.63, 1.83]< 10%2 studies (2/-)39.1 %some concernnot evaluable moderatenon important-
Myocarditis TRAE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Nausea TRAE (grade 3-4) 0.39 [0.09, 1.74]< 115%2 studies (2/-)89.2 %some concernnot evaluable moderatenon important-
Neutropenia TRAE (grade 3-4) 0.76 [0.52, 1.11]< 150%2 studies (2/-)92.4 %some concernnot evaluable moderatenon important-
Paraesthesia TRAE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Pneumonitis TRAE (grade 3-4) 2.50 [0.48, 13.02]< 10%2 studies (2/-)13.9 %some concernnot evaluable moderatenon important-
Pruritus TRAE (grade 3-4) 1.00 [0.06, 16.06]< 10%2 studies (2/-)49.9 %some concernnot evaluable moderatenon important-
Rash TRAE (grade 3-4) 3.12 [0.29, 33.82]< 10%2 studies (2/-)17.6 %some concernnot evaluable moderatenon important-
Thrombocytopenia TRAE (grade 3-4) 0.73 [0.46, 1.17]< 16%2 studies (2/-)90.2 %some concernnot evaluable moderatenon important-
Thyroiditis TRAE (grade 3-4) 1.00 [0.06, 16.06]< 10%2 studies (2/-)49.9 %some concernnot evaluable moderatenon important-
Vomiting TRAE (grade 3-4) 0.67 [0.13, 3.54]< 10%2 studies (2/-)68.0 %some concernnot evaluable moderatenon important-

AE (grade 3-4) endpoints 00

Alopecia AE (grade 3-4) 1.02 [0.24, 4.29]< 10%2 studies (2/-)49.2 %some concernnot evaluable moderatenon important-
Anaemia AE (grade 3-4) 0.56 [0.38, 0.81]< 113%2 studies (2/-)99.9 %some concernnot evaluable moderatenon important-
Asthenia AE (grade 3-4) 1.68 [0.61, 4.66]< 10%2 studies (2/-)15.9 %some concernnot evaluable moderatenon important-
Back pain AE (grade 3-4) 1.26 [0.18, 9.01]< 10%2 studies (2/-)40.8 %some concernnot evaluable moderatenon important-
Constipation AE (grade 3-4) 2.94 [0.30, 29.05]< 10%2 studies (2/-)18.0 %some concernnot evaluable moderatenon important-
Cough AE (grade 3-4) 2.94 [0.30, 29.05]< 10%2 studies (2/-)18.0 %some concernnot evaluable moderatenon important-
Decreased appetite AE (grade 3-4) 1.73 [0.49, 6.11]< 10%2 studies (2/-)19.9 %some concernnot evaluable moderatenon important-
Diarrhoea AE (grade 3-4) 1.66 [0.58, 4.68]< 10%2 studies (2/-)17.2 %some concernnot evaluable moderatenon important-
Dyspnoea AE (grade 3-4) 1.59 [0.61, 4.12]< 10%2 studies (2/-)17.2 %some concernnot evaluable moderatenon important-
Fatigue AE (grade 3-4) 1.17 [0.39, 3.52]< 10%2 studies (2/-)39.0 %some concernnot evaluable moderatenon important-
Febrile neutropenia AE (grade 3-4) 0.82 [0.49, 1.37]< 10%2 studies (2/-)78.1 %some concernnot evaluable moderatenon important-
Headache AE (grade 3-4) 2.01 [0.18, 22.21]< 10%2 studies (2/-)28.6 %some concernnot evaluable moderatenon important-
Hypertension AE (grade 3-4) 7.69 [1.75, 33.81]< 10%2 studies (2/-)0.4 %some concernnot evaluable moderatenon important-
Hyperthyroidism AE (grade 3-4) 1.49 [0.11, 19.45]< 10%2 studies (2/-)38.1 %some concernnot evaluable moderatenon important-
Increased Lipase Level AE (grade 3-4) 1.89 [0.79, 4.52]< 10%2 studies (2/-)7.6 %some concernnot evaluable moderatenon important-
Leucopenia AE (grade 3-4) 1.08 [0.63, 1.83]< 10%2 studies (2/-)39.1 %some concernnot evaluable moderatenon important-
Nausea AE (grade 3-4) 0.57 [0.13, 2.58]< 139%2 studies (2/-)76.7 %some concernnot evaluable moderatenon important-
Neutropenia AE (grade 3-4) 0.79 [0.54, 1.15]< 152%2 studies (2/-)89.3 %some concernnot evaluable moderatenon important-
Pneumonia AE (grade 3-4) 0.78 [0.38, 1.59]< 10%2 studies (2/-)75.4 %some concernnot evaluable moderatenon important-
Pruritus AE (grade 3-4) 1.00 [0.06, 16.06]< 10%2 studies (2/-)49.9 %some concernnot evaluable moderatenon important-
Pyrexia AE (grade 3-4) 0.50 [0.05, 5.53]< 10%2 studies (2/-)71.3 %some concernnot evaluable moderatenon important-
Rash AE (grade 3-4) 3.12 [0.29, 33.82]< 10%2 studies (2/-)17.6 %some concernnot evaluable moderatenon important-
Thrombocytopenia AE (grade 3-4) 0.76 [0.47, 1.24]< 119%2 studies (2/-)86.1 %some concernnot evaluable moderatenon important-
Vomiting AE (grade 3-4) 0.72 [0.11, 4.67]< 133%2 studies (2/-)63.6 %some concernnot evaluable moderatenon 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.