Liquid Biopsy Adoption Expands Companion Diagnostic Testing
Oncology treatment protocols increasingly require molecular confirmation of specific tumor mutations before authorizing targeted therapies, and liquid biopsy testing lets clinicians obtain that confirmation from a blood draw rather than an invasive tissue biopsy procedure. Roche and Thermo Fisher have both expanded companion diagnostic partnerships with major pharmaceutical developers, embedding molecular assay requirements directly into clinical trial and post-approval treatment protocols. Guardant Health and Foundation Medicine have both published expanding clinical evidence supporting liquid biopsy as a viable alternative to tissue biopsy. The shift is turning assay validation into a prerequisite for drug approval itself, not a downstream diagnostic afterthought.
Market Impact: Adds 200 biomarker-linked approvals








