CLINICAL IMPACT Series
CLINICAL IMPACT SERIES: SABCS 2021 - Adjuvant Breast Cancer for ER+ HER2-, and ER-
December 2021
Summary
Review of : Phase III PALLAS Trial Final protocol-planned analysis results, CCTG MA.32 a Phase III Randomized trial , and the RxPONDER updated results from the Phase III
Highlights
- 1
Phase III PALLAS Trial Final protocol-planned analysis results, the addition of palbociclib to adjuvant ET did not prolong iDFS compared to ET alone in patients with stage II-III HR+/HER2- breast cancer.
- 2
The CCTG MA.32 a Phase III Randomized trial does not improve IDFS, OS or other BC outcomes in moderate/high risk ER/PgR+ or ER/PgR - breast cancer patients and should not be used as breat cancer treatment in those groups.
- 3
RxPONDER updated results from the Phase III in patients with 1-3 positive lymph nodes, HR+ / HER2- Breast cancer with recurrence score of 25 or less reports that postmenopausal women with RS0-25 continue to not benefit from adjuvant chemotherapy.
- 4
Premenaupausal women with RS 0-25 benefit from the addition of chemotherapy to endocrine therapy, with a 44-46% decrease in IDFS,DRFS, DRFI events.
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