Adopting the MRD Strategy to Optimize Post-operation Adjuvant Therapies for Early Stage Breast Cancer

"Standard adjuvant chemotherapy + additional chemotherapy:~* BRCA positive patients: standard adjuvant chemotherapy + olaparib~* BRCA negative patients: standard adjuvant chemotherapy + capecitabine~In the period of once 3 months follow-up, if MRD remains positive, the additional chemotherapy will be changed for at most once."

"Standard adjuvant chemotherapy + intensive targeted therapy:~* Neoadjuvant therapy non-pCR patients: standard adjuvant chemotherapy completed+ T-DM1/HP~* Neoadjuvant therapy pCR patients: standard adjuvant chemotherapy completed + HP~* Adjuvant therapy patients: AC-T/TCb + HP~In the period of once 3 months follow-up, if MRD remains positive, the intensive targeted therapy will be changed for at most once."

"Standard adjuvant chemotherapy + intensive endocrine therapy:~* Premenopausal patients: Standard adjuvant chemotherapy followed by OFS + TAM/TOR, OFS + ANA/LET/EXE, or OFS + ANA/LET/EXE + Abemaciclib.~* Postmenopausal: Standard adjuvant chemotherapy followed by ANA/LET/EXE + Abemaciclib.~In the period of once 3 months follow-up, if MRD remains positive, the intensive endocrine therapy will be changed for at most once."

"Standard adjuvant chemotherapy: AC-T/TC/TCb/AC.~In the period of once 3 months follow-up, if MRD turns positive, additional adjuvant therapies listed in The MRD strategy for high risk or MRD+ TNBC patients will be added for at most twice."

"Standard adjuvant chemotherapy + standard targeted therapy:~* Neoadjuvant therapy pCR patients: standard adjuvant chemotherapy (AC-T/TC/TCb) completed + H.~* Adjuvant therapy patients: AC-T/TC/TCb/wP + H.~In the period of once 3 months follow-up, if MRD turns positive, additional adjuvant targeted therapies listed in The MRD strategy for high risk or MRD+ HER2+ patients will be added for at most twice."

"Standard adjuvant chemotherapy + standard endocrine therapy:~* Premenopausal patients: Standard adjuvant chemotherapy followed by TAM/TOR.~* Postmenopausal patients: Standard adjuvant chemotherapy followed by ANA/LET/EXE.~In the period of once 3 months follow-up, if MRD turns positive, additional adjuvant endocrine therapies listed in The MRD strategy for high risk or MRD+ ER+ patients will be added for at most twice."