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breast cancer - triple negative, atezolizumab 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) 0.85 [0.72, 1.01]< 10%2 studies (2/-)96.4 %lownot evaluable highcrucial-
PFS (extension) 0.80 [0.69, 0.92]< 10%1 study (1/-)99.9 %NAnot evaluable important-
progression or deaths (PFS) 0.80 [0.69, 0.92]< 10%1 study (1/-)99.9 %NAnot evaluable important-
DOR 0.78 [0.63, 0.97]< 10%1 study (1/-)98.6 %NAnot evaluable non important-
events or deaths (EFS) 0.76 [0.40, 1.44]< 10%1 study (1/-)79.9 %NAnot evaluable non important-
objective responses (ORR) 1.52 [1.17, 1.98]> 10%1 study (1/-)99.9 %NAnot evaluable non important-
pCR 1.95 [1.26, 3.01]> 10%1 study (1/-)99.9 %NAnot evaluable non important-

safety endpoints 00

AE (any grade) 2.47 [0.72, 8.47]< 10%2 studies (2/-)7.5 %lownot evaluable highnon important-
AE (grade 3-4) 1.25 [1.00, 1.57]< 10%2 studies (2/-)2.7 %lownot evaluable highnon important-
AE leading to death (grade 5) 1.71 [0.49, 5.92]< 10%2 studies (2/-)20.1 %lownot evaluable highnon important-
AE leading to treatment discontinuation (any grade) 1.66 [0.89, 3.11]< 171%2 studies (2/-)5.6 %lownot evaluable highnon important-
SAE (any grade) 1.55 [1.05, 2.29]< 143%2 studies (2/-)1.4 %lownot evaluable highnon important-
STRAE (any grade) 1.72 [1.21, 2.45]< 10%2 studies (2/-)0.1 %lownot evaluable highnon important-
TRAE (any grade) 1.70 [0.93, 3.11]< 10%2 studies (2/-)4.2 %lownot evaluable highnon important-
TRAE (grade 3-4) 1.39 [1.08, 1.80]< 113%2 studies (2/-)0.6 %lownot evaluable highnon important-
TRAE leading to death (grade 5) 2.91 [0.30, 28.05]< 10%1 study (1/-)18.0 %NAnot evaluable non important-

TRAE (grade 3-4) endpoints 00

Adrenal insufficiency TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Colitis TRAE (grade 3-4) 2.04 [0.07, 61.32]< 10%1 study (1/-)34.3 %NAnot evaluable non important-
Diabetes TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Guillain-Barré syndrome TRAE (grade 3-4) 0.51 [0.02, 15.24]< 10%1 study (1/-)65.0 %NAnot evaluable non important-
Hepatitis TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Hyperthyroidism TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Hypothyroidism TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Infusion-related reactions TRAE (grade 3-4) 1.02 [0.06, 16.42]< 10%1 study (1/-)49.5 %NAnot evaluable non important-
Myositis TRAE (grade 3-4) 2.04 [0.07, 61.32]< 10%1 study (1/-)34.3 %NAnot evaluable non important-
Pneumonitis TRAE (grade 3-4) 2.04 [0.07, 61.32]< 10%1 study (1/-)34.3 %NAnot evaluable non important-
Rash TRAE (grade 3-4) 1.02 [0.32, 3.23]< 10%1 study (1/-)48.7 %NAnot evaluable non important-
Severe skin reaction TRAE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-

AE (grade 3-4) endpoints 00

hepatitis (Autoimmune) AE (grade 3-4) 0.96 [0.06, 15.47]< 10%1 study (1/-)51.0 %NAnot evaluable non important-
Abdominal pain AE (grade 3-4) 1.24 [0.17, 8.82]< 10%2 studies (2/-)41.6 %lownot evaluable highnon important-
Acute kidney injury AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Adrenal insufficiency AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Alopecia AE (grade 3-4) 1.62 [0.21, 12.61]< 10%2 studies (2/-)32.3 %lownot evaluable highnon important-
Anaemia AE (grade 3-4) 1.12 [0.64, 1.94]< 10%2 studies (2/-)34.9 %lownot evaluable highnon important-
Arthralgia AE (grade 3-4) 0.98 [0.10, 9.47]< 10%2 studies (2/-)50.6 %lownot evaluable highnon important-
Asthenia AE (grade 3-4) 0.98 [0.31, 3.12]< 10%2 studies (2/-)51.1 %lownot evaluable highnon important-
Back pain AE (grade 3-4) 2.51 [0.57, 11.10]< 10%2 studies (2/-)11.3 %lownot evaluable highnon important-
Cardiomyopathy AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Chills AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Colitis AE (grade 3-4) 0.96 [0.06, 15.47]< 10%1 study (1/-)51.0 %NAnot evaluable non important-
Constipation AE (grade 3-4) 1.70 [0.26, 11.21]< 10%2 studies (2/-)29.2 %lownot evaluable highnon important-
Cough AE (grade 3-4) 0.99 [0.06, 15.89]< 10%2 studies (2/-)50.2 %lownot evaluable highnon important-
Decreased appetite AE (grade 3-4) 0.97 [0.22, 4.30]< 10%2 studies (2/-)51.5 %lownot evaluable highnon important-
Diarrhoea AE (grade 3-4) 1.36 [0.33, 5.60]< 140%2 studies (2/-)33.4 %lownot evaluable highnon important-
Dizziness AE (grade 3-4) 0.96 [0.02, 48.73]< 10%1 study (1/-)50.7 %NAnot evaluable non important-
Dry skin AE (grade 3-4) 2.04 [0.07, 61.32]< 10%1 study (1/-)34.3 %NAnot evaluable non important-
Dysgeusia AE (grade 3-4) 0.99 [0.06, 15.89]< 10%2 studies (2/-)50.2 %lownot evaluable highnon important-
Dyspepsia AE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Dysphonia AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Dyspnoea AE (grade 3-4) 0.99 [0.28, 3.42]< 10%2 studies (2/-)50.9 %lownot evaluable highnon important-
Epistaxis AE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Fatigue AE (grade 3-4) 1.13 [0.61, 2.08]< 10%2 studies (2/-)34.8 %lownot evaluable highnon important-
Febrile neutropenia AE (grade 3-4) 1.25 [0.61, 2.57]< 10%1 study (1/-)27.3 %NAnot evaluable non important-
Headache AE (grade 3-4) 0.49 [0.11, 2.23]< 10%2 studies (2/-)82.3 %lownot evaluable highnon important-
Hypertension AE (grade 3-4) 0.59 [0.25, 1.38]< 131%2 studies (2/-)89.0 %lownot evaluable highnon important-
Hyperthyroidism AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Hypothyroidism AE (grade 3-4) 0.96 [0.02, 48.73]< 10%1 study (1/-)50.7 %NAnot evaluable non important-
Increase AST AE (grade 3-4) 1.33 [0.56, 3.16]< 117%2 studies (2/-)25.9 %lownot evaluable highnon important-
Increased ALT AE (grade 3-4) 1.13 [0.55, 2.31]< 10%2 studies (2/-)36.8 %lownot evaluable highnon important-
Infusion-related reaction AE (grade 3-4) 1.02 [0.06, 16.42]< 10%1 study (1/-)49.5 %NAnot evaluable non important-
Lacrimation increased AE (grade 3-4) 1.02 [0.02, 51.63]< 10%1 study (1/-)49.6 %NAnot evaluable non important-
Leucopenia AE (grade 3-4) 1.73 [0.86, 3.49]< 10%2 studies (2/-)6.3 %lownot evaluable highnon important-
Mucosal inflammation AE (grade 3-4) 1.96 [0.43, 8.98]< 10%2 studies (2/-)19.4 %lownot evaluable highnon important-
Myalgia AE (grade 3-4) 0.83 [0.17, 4.04]< 10%2 studies (2/-)59.3 %lownot evaluable highnon important-
Myopathy AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Nausea AE (grade 3-4) 0.47 [0.19, 1.17]< 10%2 studies (2/-)94.9 %lownot evaluable highnon important-
Neutropenia AE (grade 3-4) 1.05 [0.74, 1.50]< 10%2 studies (2/-)38.3 %lownot evaluable highnon important-
Oropharyngeal pain AE (grade 3-4) 2.04 [0.07, 61.32]< 10%1 study (1/-)34.3 %NAnot evaluable non important-
Paraesthesia AE (grade 3-4) 1.62 [0.21, 12.61]< 10%2 studies (2/-)32.3 %lownot evaluable highnon important-
Pericarditis AE (grade 3-4) 1.93 [0.06, 57.72]< 10%1 study (1/-)35.4 %NAnot evaluable non important-
Peripheral neuropathy AE (grade 3-4) 1.09 [0.23, 5.23]< 169%2 studies (2/-)45.9 %lownot evaluable highnon important-
Peripheral oedema AE (grade 3-4) 0.22 [0.04, 1.33]< 10%2 studies (2/-)95.0 %lownot evaluable highnon important-
Peripheral sensory neuropathy AE (grade 3-4) 1.28 [0.34, 4.86]< 10%1 study (1/-)35.8 %NAnot evaluable non important-
Pneumonia AE (grade 3-4) 3.27 [0.89, 11.95]< 10%1 study (1/-)3.7 %NAnot evaluable non important-
Pneumonitis AE (grade 3-4) 3.87 [0.17, 86.09]< 10%1 study (1/-)19.9 %NAnot evaluable non important-
Pruritus AE (grade 3-4) 0.35 [0.05, 2.36]< 10%2 studies (2/-)86.0 %lownot evaluable highnon important-
Pyrexia AE (grade 3-4) 4.92 [0.57, 42.55]< 10%2 studies (2/-)7.5 %lownot evaluable highnon important-
Rash AE (grade 3-4) 1.84 [0.43, 7.98]< 10%2 studies (2/-)20.8 %lownot evaluable highnon important-
Sepsis AE (grade 3-4) 0.16 [0.01, 3.20]< 10%1 study (1/-)88.2 %NAnot evaluable non important-
Stomatitis AE (grade 3-4) 2.27 [0.30, 17.45]< 10%2 studies (2/-)21.6 %lownot evaluable highnon important-
Thrombocytopenia AE (grade 3-4) 1.93 [0.17, 21.40]< 10%1 study (1/-)29.7 %NAnot evaluable non important-
Vomiting AE (grade 3-4) 0.97 [0.30, 3.07]< 10%2 studies (2/-)52.4 %lownot evaluable highnon important-
Weight decreased AE (grade 3-4) 5.82 [0.29, 116.53]< 10%1 study (1/-)12.7 %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.