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es-BC - HER2 positive - (neo)adjuvant (NA), HER inhibitor , 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) 0.99 [0.74, 1.32]< 10%1 study (1/-)52.7 %NAnot evaluable crucial-
RFS/DFS 0.83 [0.69, 0.99]< 10%1 study (1/-)98.0 %NAnot evaluable important-
events or deaths (EFS) 0.90 [0.50, 1.60]< 10%1 study (1/-)63.9 %NAnot evaluable non important-
pCR 0.67 [0.37, 1.21]> 10%1 study (1/-)9.3 %NAnot evaluable non important-

safety endpoints 00

AE (grade 3-4) 1.39 [0.96, 2.02]< 10%1 study (1/-)4.1 %NAnot evaluable non important-
AE leading to death (grade 5) 8.09 [0.43, 153.93]< 10%1 study (1/-)8.4 %NAnot evaluable non important-
AE leading to treatment discontinuation (any grade) 1.21 [0.70, 2.09]< 10%1 study (1/-)24.9 %NAnot evaluable non important-
SAE (any grade) 1.57 [0.95, 2.61]< 10%1 study (1/-)4.0 %NAnot evaluable non important-
STRAE (any grade) 1.48 [0.85, 2.59]< 10%1 study (1/-)8.3 %NAnot evaluable non important-
TRAE (grade 3-4) 1.23 [0.85, 1.78]< 10%1 study (1/-)13.7 %NAnot evaluable non important-
TRAE leading to death (grade 5) 4.01 [0.18, 89.40]< 10%1 study (1/-)19.3 %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.