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multiple myeloma - 1st line (L1), 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) 2.06 [0.93, 4.56]< 10%1 study (1/-)3.7 %NAnot evaluable crucial-
progression or deaths (PFS) 1.22 [0.67, 2.22]< 10%1 study (1/-)25.8 %NAnot evaluable important-
DCR 0.80 [0.43, 1.46]> 10%1 study (1/-)22.9 %NAnot evaluable non important-
objective responses (ORR) 1.07 [0.67, 1.71]> 10%1 study (1/-)61.1 %NAnot evaluable non important-

safety endpoints 00

AE (any grade) 1.40 [0.57, 3.44]< 10%1 study (1/-)22.9 %NAnot evaluable non important-
AE (grade 3-4) 2.17 [1.36, 3.46]< 10%1 study (1/-)0.1 %NAnot evaluable non important-
AE leading to death (grade 5) 1.64 [0.66, 4.08]< 10%1 study (1/-)14.5 %NAnot evaluable non important-
AE leading to treatment discontinuation (any grade) 2.62 [1.45, 4.72]< 10%1 study (1/-)0.1 %NAnot evaluable non important-
SAE (any grade) 1.84 [1.16, 2.92]< 10%1 study (1/-)0.5 %NAnot evaluable non important-
TRAE leading to death (grade 5) 3.00 [0.60, 15.11]< 10%1 study (1/-)9.2 %NAnot evaluable non important-
TRAE leading to discontinuation (any grade) 2.91 [1.43, 5.93]< 10%1 study (1/-)0.2 %NAnot evaluable non important-

TRAE (grade 3-4) endpoints 00

Adrenal insufficiency TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Colitis TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Diabetes TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Dry skin TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Hepatitis TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Hypersensitivity TRAE (grade 3-4) 0.97 [0.02, 49.37]< 10%1 study (1/-)50.5 %NAnot evaluable non important-
Hyperthyroidism TRAE (grade 3-4) 5.94 [0.29, 119.61]< 10%1 study (1/-)12.5 %NAnot evaluable non important-
Hypothyroidism TRAE (grade 3-4) 0.97 [0.02, 49.37]< 10%1 study (1/-)50.5 %NAnot evaluable non important-
Infusion-related reactions TRAE (grade 3-4) 3.93 [0.18, 87.94]< 10%1 study (1/-)19.7 %NAnot evaluable non important-
Myocarditis TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Pancreatitis TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Pneumonitis TRAE (grade 3-4) 0.97 [0.02, 49.37]< 10%1 study (1/-)50.5 %NAnot evaluable non important-
Pruritic rash TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Rash TRAE (grade 3-4) 27.63 [1.62, 470.16]< 10%1 study (1/-)1.2 %NAnot evaluable non important-
Stevens-Johnson syndrome TRAE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Thyroiditis TRAE (grade 3-4) 0.97 [0.02, 49.37]< 10%1 study (1/-)50.5 %NAnot evaluable non important-

AE (grade 3-4) endpoints 00

Anaemia AE (grade 3-4) 1.92 [0.79, 4.67]< 10%1 study (1/-)7.6 %NAnot evaluable non important-
Back pain AE (grade 3-4) 1.64 [0.39, 7.01]< 10%1 study (1/-)25.2 %NAnot evaluable non important-
Constipation AE (grade 3-4) 3.93 [0.18, 87.94]< 10%1 study (1/-)19.7 %NAnot evaluable non important-
Cough AE (grade 3-4) 0.97 [0.02, 49.37]< 10%1 study (1/-)50.5 %NAnot evaluable non important-
Decreased appetite AE (grade 3-4) 0.64 [0.11, 3.91]< 10%1 study (1/-)68.3 %NAnot evaluable non important-
Diarrhoea AE (grade 3-4) 10.03 [0.54, 185.37]< 10%1 study (1/-)6.3 %NAnot evaluable non important-
Dyspnoea AE (grade 3-4) 12.13 [0.67, 219.12]< 10%1 study (1/-)4.7 %NAnot evaluable non important-
Fatigue AE (grade 3-4) 1.64 [0.39, 7.01]< 10%1 study (1/-)25.2 %NAnot evaluable non important-
Nausea AE (grade 3-4) 2.96 [0.30, 28.78]< 10%1 study (1/-)17.7 %NAnot evaluable non important-
Neutropenia AE (grade 3-4) 1.04 [0.50, 2.20]< 10%1 study (1/-)45.6 %NAnot evaluable non important-
Peripheral oedema AE (grade 3-4) 1.95 [0.07, 58.66]< 10%1 study (1/-)35.2 %NAnot evaluable non important-
Pneumonia AE (grade 3-4) 1.31 [0.44, 3.89]< 10%1 study (1/-)31.1 %NAnot evaluable non important-
Pyrexia AE (grade 3-4) 7.97 [0.42, 152.17]< 10%1 study (1/-)8.6 %NAnot evaluable non important-
Rash AE (grade 3-4) 6.04 [0.72, 50.82]< 10%1 study (1/-)5.0 %NAnot evaluable non important-
Vomiting AE (grade 3-4) 3.93 [0.18, 87.94]< 10%1 study (1/-)19.7 %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.