San Antonio Breast Cancer Symposium

Early results from a phase 1 study show promise for datopotamab deruxtecan for patients with advanced or metastatic triple-negative breast cancer.

Results from prespecified subgroup analyses of the phase KEYNOTE-522 study were presented during 2021 SABCS.

Updated results from the phase 3 3KEYNOTE-355 trial indicate a new standard of care for patients with metastatic triple-negative breast cancer in patients with a PD-L1 combined positive score of 10 or higher.

Improved invasive disease-free survival or overall survival rates for patients, regardless of hormone receptor status, was not improved with metformin, according to results of a phase 3 trial.

Research shows that tamoxifen treatment may lead to problems down the road in patients with primary breast cancer.

During a press briefing ahead of the 2021 San Antonio Breast Cancer Symposium, results from the phase 3 EMERALD trial were presented.

Imaging mass cytometry at the single-cell level may be a promising response prediction tool for immunotherapy in early triple-negative breast cancer.

In an epidemiological study, a 24-month lymphedema rate of 39.4% was the highest incidence of lymphedema observed among Black women.

A pooled analysis of results from the randomized phase 2 SAFIR02_BREAST and SAFIR-PI3K trials show promise for the use of multigene sequencing to select targeted therapy for metastatic breast cancer.

Findings from the phase 3 PADA-1 trial reveal promising progression-free survival results when treatment with fulvestrant/palbociclib follows treatment with an aromatase inhibitor plus palbociclib in a metastatic breast cancer subgroup.

Following neoadjuvant chemotherapy with or without pembrolizumab in patients with high-risk early-stage breast cancer, the presence of ctDNA was a biomarker for response and distant recurrence-free survival.

Treatment with tesetaxel plus a reduced dose of capecitabine improved progression-free survival in patients with HER2–, HR+ metastatic breast cancer compared with the FDA-approved dose of capecitabine alone.

In the phase 3 PENELOPE-B clinical trial, adding 1 year of palbociclib to endocrine therapy did not demonstrate improvement in invasive disease-free survival in patients with hormone receptor–positive, HER2-negative breast cancer who are at high risk of relapse following neoadjuvant chemotherapy, according to results presented at the 2020 San Antonio Breast Cancer Symposium.

For patients with node-negative early breast cancer, RSClin, an intergration of the 21-gene expression assay and clinical pathologic features, provided more prognostic information compared with the 21-gene recurrence score or clinical pathologic features alone, as well as a more precise prediction of absolute chemotherapy benefit.

Using 5- HT3 inhibitors and early intervention with loperamide was shown to manage gastrointestinal adverse events oral paclitaxel and encequidar in patients with metastatic breast cancer, according to a study presented during the San Antonio Breast Cancer Symposium.

Joseph A. Sparano, MD, discusses how identifying the risk of recurrence in patients with breast cancer can help inform treatment decisions.

Sacituzumab govitecan led to improvements in response rates and progression-free survival (PFS) compared with chemotherapy for patients with metastatic triple-negative breast cancer who had stable brain metastases in a subgroup analysis from the phase 3 ASCENT trial.

In the phase 3 PROTECTIVE-2 trial, patient with breast cancer who received plinabulin and pegfilgrastim experienced a reduction in the incidence of profound neutropenia that was 53% more effective than that of chemotherapy, according to findings presented during the 2020 San Antonio Breast Cancer Symposium.

To identify which patients with HER2-positive breast cancer are most likely to respond to fam-trastuzumab deruxtecan-nxki, investigators used a novel HER2 quantitative continuous score to provide a better objective and quantitative assessment of HER2 expression, data presented during the 2020 San Antonio Beast Cancer Symposium show.

The GP2 immunotherapy in combination with granulocyte-macrophage colony-stimulating factor induced a 100% disease-free survival with potent responses as treatment of patients with HER2/neu 3–positive disease who received adjuvant trastuzumab .

Treatment with amcenestrant demonstrated antitumor activity in postmenopausal women with heavily pretreated advanced or metastatic estrogen receptor–positive breast cancer.

Pathologic complete responses were improved when neoadjuvant atezolizumab was added to nab-paclitaxel followed by doxorubicin plus cyclophosphamide compared with placebo in combination with chemotherapy as treatment of patients with early triple-negative breast cancer without adding additional treatment burden to patients.

Ipatasertib in combination with paclitaxel failed to demonstrate a significant improvement in progression-free survival compared with placebo plus paclitaxel as treatment of patients with PIK3CA/AKT1/PTEN-altered locally advanced, unresectable or metastatic triple-negative breast cancer.

Sacituzumab govitecan demonstrated clinical benefit compared with physician’s choice of therapy as treatment of patients with metastatic triple-negative breast cancer, irrespective of Trop-2 expression, but greater efficacy was seen in patients with a medium or high Trop-2 score.

Subgroup analyses of a phase 3 randomized trial continue to support a role for the addition of pembrolizumab to chemotherapy in the frontline setting for patients with advanced triple-negative breast cancer, with the greatest benefit derived by those with higher PD-L1 expression by combined positive score.

Compared with women in the general population, those who survive breast cancer experience more difficulty in becoming pregnant and have a risk of preterm labor, although a systematic review and meta-analysis demonstrated that most deliver healthy babies with no detrimental effects on their long-term survival.

Improved survival was observed among women with stage I-III breast cancer who adhered to a diabetes risk reduction diet compared with those who did not.

Patients with radiation-associated breast angiosarcoma may have an effective treatment option with the combination of oral paclitaxel with encequidar.

Alpelisib in combination with letrozole demonstrated sustained efficacy and no new safety signals as treatment of patients with PIK3CA-mutant HR–positive, HER2-negative advanced breast cancer who received prior treatment with the combination of a CDK4/6 inhibitor and fulvestrant.

Adjuvant treatment with pertuzumab demonstrated a trend for greater benefit in patients with early breast cancer with a HER2 single-activated pathway determined by molecular subtyping using BluePrint assay.