What do systematic reviews say?

Chemotherapy vs biological therapy

Chemotherapy may leads to lower serious adverse events compared with biological therapy (low certainty).

• Salvage systemic therapy for advanced gastric and oesophago‐gastric junction adenocarcinoma 2020 · Cochrane Headline outcomes only
  RR 0.41 [0.3, 0.57]
  1 study · 570 participants
  Low