Companion diagnostics: the key to personalized medicine. Foreword

Expert Rev Mol Diagn. 2015 Feb;15(2):153-6. doi: 10.1586/14737159.2015.1002470.


This special focus issue of Expert Review of Molecular Diagnostics on in vitro companion diagnostics aims to provide the reader with up-to-date knowledge on this fast-evolving area of medical research. Companion diagnostics takes up a central role in the development of targeted drugs and to a large extent, the success of this type of therapy depends on their performance. Companion diagnostic assays have a single patient as a point of reference and they will be decisive for the move toward a more precise and individualized pharmacotherapy. The 'first generation' of companion diagnostic assays relies on single biomarker detection but with our increasing understanding of disease pathophysiology a new generation of assays is under development, which will be based on patient profiling and multiplex platforms.

Keywords: companion diagnostics; oncology; personalized medicine; precision medicine; rheumatology.

Publication types

  • Introductory Journal Article

MeSH terms

  • Arthritis, Rheumatoid / diagnosis
  • Arthritis, Rheumatoid / drug therapy
  • Arthritis, Rheumatoid / genetics
  • Humans
  • Molecular Diagnostic Techniques*
  • Molecular Targeted Therapy
  • Neoplasms / diagnosis
  • Neoplasms / drug therapy
  • Neoplasms / genetics
  • Precision Medicine*
  • Sequence Analysis, DNA