• metastatic/advanced mGC or mGEJC
• mGC or mGEJC - 1st line (L1)
• mGC or mGEJC - L1 - all population
• mGC or mGEJC - L1 - HER2 neg/PDL1 positive 2
• mGC or mGEJC - L1 - HER2 negative 1
• mGC or mGEJC - L1 - HER2 positive
• mGC or mGEJC - L1 - PDL1 positive 4
• mGC or mGEJC - 2nd Line (L2)
• mGC or mGEJC - L2 - all population 4
• mGC or mGEJC - L2 - PDL1 positive 1
• mGC or mGEJC - maintenance (M)
• mGC or mGEJC - M - HER2 negative 1
• mGC or mGEJC - M - HER2 neg/PDL1 positive 1
• gene alteration defined cancer

 

• immune chekpoint inhibitors
• anti-PD-(L)1
• avelumab based treatment
• avelumab alone

• versus all
• vs chemotherapy
• vs Standard of Care (SoC)

  All patients Age < 65y (younger) Age > 65y Asian type cancer location (gastric) cancer location (gastro-esophageal) Gender, female Gender, male PDL1 (CPS >1) PDL1 (TC1/2/3 or IC1/2/3 : ≥1% of TC or IC) previous gastrectomy previous gastrectomy NO

• study list
• mapping
• overview
• meta-analysis
• forest plot
• NMA
• excluded

Top evidence (RCT only, high risk of bias excluded) Best available evidence (possibly low or very low) All RCTs All studies (RCT+OBS)   studies

mGC or mGEJC - maintenance (M), avelumab based treatment vs. all, meta-analysis of study results

TE: relative treatment effect (measured by a risk ratio, an odds ratio or an hazard ratio depending on what is reported in the papers); k: number of studies; n: total number of patients; ROB: risk of bias (ROB 2.0); Pub. bias: publication bias; OBS: observational studies; RCT: randomized clinical trials
studied treatment is better when TE > 1; studied treatment is better when TE < 1;