21-Gene Recurrence Scores of 26 or Higher Can Help Determine If Chemotherapy Will Be Effective – MedicalResearch.com

Posted: May 14, 2020 at 5:38 pm

MedicalResearch.com Interview with:

MedicalResearch.com: What is the background for this study?

Response: More than 40% of women withhormone receptor-positive, HER2-negative early-stage breast cancer have high recurrence scores (RS)of 26-30. Optimal adjuvant systemic therapy in this subgroup remains unclear, and national guidelinescurrently recommendeither chemoendocrine therapy or endocrine therapy alone.In addition, the difference in overall survival of a patient with a RS 26-30 versus RS >30 is unclear.

MedicalResearch.com: What are the main findings?

Response: Our main findings are:

1) Chemotherapy improves outcomes for those with RS 26-30,

(2) RS >30 carries a worse prognosis for survival compared to RS 26-30 despite receiving chemoendocrine therapy, and

(3) The magnitude of chemotherapy benefit appears to be similar between those with RS 26-30 and RS >30.

MedicalResearch.com: What should readers take away from your report?

Response: Breast cancer patients with a 21-gene recurrence score of 26 or higher are a heterogeneous group of patients with different prognosis and outcomes, and chemotherapy may benefit patients with recurrence scores of 26-30.

MedicalResearch.com: What recommendations do you have for future research as a result of this work?

Response: Further prospective studies are needed to investigate optimal adjuvant therapy regimens for patients with a high 21-gene recurrence score

No relevant disclosures

Citation:

Ma SJ, Oladeru OT, Singh AK. Association of Adjuvant Chemotherapy With Overall Survival in Patients With Early-Stage Breast Cancer and 21-Gene Recurrence Scores of 26 or Higher.JAMA Netw Open.2020;3(5):e203876. doi:10.1001/jamanetworkopen.2020.3876

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2765371

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