RecruitingNot ApplicableNCT05345860

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

Adopting the MRD Strategy to Optimize Post-operation Adjuvant Therapies for Early Stage Breast Cancer, a Prospective Cohort Study


Sponsor

Cancer Institute and Hospital, Chinese Academy of Medical Sciences

Enrollment

300 participants

Start Date

Mar 24, 2022

Study Type

INTERVENTIONAL

Conditions

Summary

This study is a prospective, multi-center, open-label cohort study, with 3 years disease free survival(DFS) as the primary endpoint. We optimize post-operation adjuvant therapy for early stage breast cancer based on the MRD strategy: patients with clinical high risk or post-operation 1st MRD tested positive will receive intensive adjuvant therapy, while patients with low clinical risk and post-operation 1st MRD tested negative will receive standard adjuvant therapy, and the treatment regimens will be adjusted every 3 months according to the change of MRD status. About 100 TNBC patients, 100 HER2+ patients, and 100 ER+ patients are planned to be enrolled.


Eligibility

Sex: FEMALEMin Age: 18 Years

Plain Language Summary

Simplified for easier understanding

This study is testing whether monitoring tiny traces of cancer DNA in the blood (called MRD — measurable residual disease) can help doctors personalize treatment for people with early-stage breast cancer after surgery. **You may be eligible if...** - You are 18 or older - You have been diagnosed with early-stage invasive breast cancer (stage I–III) that can be removed by surgery - You have not yet received any treatment for breast cancer - Your blood counts, liver, and kidney function are within acceptable ranges **You may NOT be eligible if...** - You have or had another active cancer requiring treatment in the past 5 years - You have a significant history of neurological or psychiatric disorders, including epilepsy or dementia - You have a known allergy to the study drugs, or a history of organ transplant or immune deficiency - You have serious uncontrolled conditions such as active infections, severe heart, liver, kidney, or lung disease - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

OTHERThe MRD strategy for high risk or MRD+ TNBC patients

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.

OTHERThe MRD strategy for high risk or MRD+ HER2+ patients

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.

OTHERThe MRD strategy for high risk or MRD+ ER+ patients

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.

OTHERThe MRD strategy for low risk and MRD- TNBC patients

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.

OTHERThe MRD strategy for low risk and MRD- HER2+ patients

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.

OTHERThe MRD strategy for low risk and MRD- ER+ patients

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.


Locations(3)

Cancer Hospital, Chinese Academy of Medical Sciences

Beijing, Beijing Municipality, China

Beijing Huanxing Cancer Hospital

Beijing, Beijing Municipality, China

Cancer Hospital, Chinese Academy of Medical Sciences, Hebei Center

Langfang, Hebei, China

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NCT05345860


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