What do systematic reviews say?

Combined immune checkpoint inhibitors (ICIs) vs chemotherapy alone

Combined immune checkpoint inhibitors (ICIs) probably leads to lower overall Survival (OS) compared with chemotherapy (moderate certainty).

• Single or combined immune checkpoint inhibitors compared to first‐line platinum‐based chemotherapy with or without… 2021 · Cochrane Headline outcomes only
  HR 0.72 [0.59, 0.89]
  2 studies · 612 participants
  Moderate