Dr. John Bartlett

Program Director, Diagnostic Development, OICR

Personalized diagnostics remains one of the most significant barriers to personalized medicine. Dr. John Bartlett and his Diagnostic Development group are building a focused research program to support novel approaches to personalized medicine in breast, prostate and other cancer types. In collaboration with partners across Ontario and around the world, Dr. Bartlett is working to create and establish integrated omics approaches to cancer diagnosis.

Dr. Bartlett works with guideline panels (e.g., ASCO-CAP, TILs in breast cancer) to create better approaches to delivering novel assays in the clinic, bridging the gap between omics discoveries and cancer patients. These approaches are increasingly enabling more personalized treatment for cancer patients across Ontario and beyond.

Dr. Bartlett’s work is supported by several global partnerships including the EBCTCG and other clinical trial partners.

Current affiliations

  • Program Director, Diagnostic Development, OICR
  • Honorary Professor, College of Medicine and Veterinary Medicine, University of Edinburgh
  • Provincial Principal Investigator, Ontario Tumour Bank
  • Professor (Adjunct academic staff), Department of Pathology and Molecular Medicine, Queen’s University
  • Professor (Status-Only), Department of Laboratory Medicine and Pathobiology, University of Toronto

Research interests

  • Breast cancer
  • Prostate cancer
  • Molecular diagnostics
  • Molecular pathology
  • Clinical trials
  • Targeted therapeutics

Select publications

Diagnostic development

Key partnerships


International outreach

See Dr. Bartlett’s recent publications on PubMed or on Google Scholar.

Previous experience

  • Reader, University Department of Surgery, Level II Queen Elizabeth Building, Glasgow Royal Infirmary, University of Glasgow
  • Reader in Molecular Pathology, School of Molecular and Clinical Medicine, College of Medicine and Veterinary Medicine, The University of Edinburgh
  • Professor of Molecular Pathology, School of Molecular and Clinical Medicine, College of Medicine and Veterinary Medicine, The University of Edinburgh

Opportunities to collaborate

Collaboration is the key to solving the big questions faced by researchers across the cancer spectrum. In Bartlett’s program there are opportunities to collaborate through technology access, partnership and mentorship. Bartlett’s expertise in diagnostic development and both in situ and deep molecular analysis of clinical specimens provides an ideal platform for partnership with researchers across Ontario, Canada and beyond. Bartlett is always willing to discuss scientific opportunities and solutions (over a coffee!) and to foster a collaborative approach with research and industry partners. For more opportunities to collaborate, please visit OICR’s Collaborative Research Resources page.

Related Links

University of Toronto Department of Laboratory Medicine & Pathobiology Faculty Page – Dr. John Bartlett