Fig. 5: ctDNA trajectories and clinical events.

Participants’ clinical timeline and timeline of plasma collection for ctDNA analysis for A ER+ B TNBC and C HER2 + EBC. Participants who received adjuvant HER2-targeted therapy who were not classified as HER2+ at baseline had ASCO/CAP-defined HER2+ disease on surgical resection and received one year of trastuzumab as standard of care. RCB residual cancer burden, cN clinical nodal status at baseline, cT clinical tumor size at baseline.