MAPK blockade, toxicities, pathogenesis and management

Curr Opin Oncol. 2021 Mar 1;33(2):139-145. doi: 10.1097/CCO.0000000000000710.

Abstract

Purpose of review: BRAF/MEK inhibitor has changed the treatment landscape in patients with advanced and metastatic melanoma with prolonged overall survival and progression-free survival. Since three treatment combinations exist with similar efficacy therapy decisions are often made based on the side effect profile. Additionally, on-target side effects or class effects have to be properly managed to ensure treatment adherence.

Recent findings: Sequential treatment with BRAF/MEK inhibition and immunotherapy might increase toxicity with a sepsis-like syndrome and triple therapy with concomitant BRAF/MEK inhibition and anti-PD1/PD-L1 antibody therapy induces severe side effects in the vast majority of patients.

Summary: Toxicity of combination therapy with BRAF/MEK inhibitors is generally manageable, reversible and infrequently associated with treatment discontinuation. In case of persisting off-target effects the change to another combination therapy can resolve side effects.

Publication types

  • Review

MeSH terms

  • Antineoplastic Combined Chemotherapy Protocols / administration & dosage*
  • Antineoplastic Combined Chemotherapy Protocols / adverse effects
  • Humans
  • MAP Kinase Signaling System / drug effects*
  • Melanoma / drug therapy*
  • Melanoma / enzymology
  • Melanoma / immunology
  • Melanoma, Cutaneous Malignant
  • Mitogen-Activated Protein Kinase Kinases / antagonists & inhibitors*
  • Mitogen-Activated Protein Kinase Kinases / metabolism
  • Mitogen-Activated Protein Kinases / antagonists & inhibitors*
  • Mitogen-Activated Protein Kinases / metabolism
  • Protein Kinase Inhibitors / administration & dosage
  • Protein Kinase Inhibitors / adverse effects
  • Proto-Oncogene Proteins B-raf / antagonists & inhibitors
  • Proto-Oncogene Proteins B-raf / metabolism
  • Skin Neoplasms / drug therapy*
  • Skin Neoplasms / enzymology
  • Skin Neoplasms / immunology

Substances

  • Protein Kinase Inhibitors
  • BRAF protein, human
  • Proto-Oncogene Proteins B-raf
  • Mitogen-Activated Protein Kinases
  • Mitogen-Activated Protein Kinase Kinases