March 10, 2022 - Supplement: Conference Highlights SABCS 2021 (View All Issues)
Highlights From the 2021 San Antonio Breast Cancer Symposium
In its first return to a hybrid model since the COVID-19 pandemic began, the 2021 San Antonio Breast Cancer Symposium (SABCS) brought together researchers, clinicians, industry experts, patients, and advocates from across the globe to present and grapple with new data and important topics in breast ...
Second-Line T-DXd Improves Progression-Free Survival Across HER2-Positive Metastatic Breast Cancer Subgroups
The antibody-drug conjugate fam-trastuzumab deruxtecan-nxki (T-DXd) lengthened progression-free survival and improved the objective response rate compared with the antibody-drug conjugate ado-trastuzumab emtansine (T-DM1) after trastuzumab and taxane therapy in women with HER2-positive metastatic...
T-DXd Shows Activity in HER2-Low, HER2-Undetectable Breast Cancer
The antibody-drug conjugate fam-trastuzumab deruxtecan-nxki (T-DXd) has led to practice changes in previously treated HER2-positive metastatic breast cancer. Most notably, in the DESTINY-Breast03 trial, treatment with T-DXd produced a doubling in 12-month progression-free survival vs...
Clinical Trials Underway for T-DXd in Breast Cancer
The current standard of care for the neoadjuvant treatment of HER2-positive early-stage breast cancer consists of trastuzumab plus pertuzumab and polychemotherapy. But some patients, particularly those with locally advanced or inflammatory disease, still relapse and die. Furthermore, multiagent...
Datopotamab Deruxtecan Shows Activity in Advanced Triple-Negative Breast Cancer
Datopotamab deruxtecan, an antibody-drug conjugate directed against trophoblast cell surface antigen-2 (Trop-2), is showing activity as a treatment for relapsed or refractory advanced triple-negative breast cancer, according to early findings from the phase I TROPION-PanTumor01 trial presented...
KEYNOTE-522: Sensitivity Analyses Confirm Value of Neoadjuvant Pembrolizumab in Triple-Negative Breast Cancer
Updated results from the pivotal KEYNOTE-522 trial have confirmed the benefit of neoadjuvant therapy with pembrolizumab plus chemotherapy in patients with early triple-negative breast cancer.1 The results were presented at the 2021 San Antonio Breast Cancer Symposium by Peter Schmid, MD, PhD,...
Identifying Women With Triple-Negative Breast Cancer Who May Benefit From Pembrolizumab Plus Chemotherapy
Results of the phase III randomized KEYNOTE-355 trial showed that the addition of the PD-1 inhibitor pembrolizumab to investigator’s choice of first-line chemotherapy improved progression-free and overall survival in women with metastatic triple-negative breast cancer compared with placebo and...
Dual Checkpoint Inhibitor Therapy Elicits Responses in Highly Mutated Breast Cancer
Patients with advanced HER2-negative metastatic breast cancer and high tumor mutational burden achieved responses—often durable—from treatment with the immunotherapy doublet of nivolumab and ipilimumab, according to the results of the phase II NIMBUS trial reported at the 2021 San Antonio Breast...
RxPONDER Update Explores Benefit of Chemotherapy in Subgroups
Updated results of the SWOG S1007 RxPONDER trial confirmed the key takeaway from the previous analysis: adjuvant chemotherapy benefits premenopausal women but not postmenopausal women with hormone receptor–positive, HER2-negative disease, one to three positive lymph nodes, and a 21-gene Oncotype DX ...
MONALEESA Analyses Show Widespread Benefit for Ribociclib in Hormone Receptor–Positive, HER2-Negative Breast Cancer
Further analyses of the MONALEESA metastatic breast cancer trials have shown that the benefit of ribociclib plus endocrine therapy in the first-line setting extends to most intrinsic molecular subtypes and is consistent across multiple subgroups. The studies were presented at the 2021 San Antonio...
Evidence Supports Ovarian Function Suppression Plus Aromatase Inhibitor in Premenopausal Women With Early Breast Cancer
The benefits of ovarian function suppression were sustained long term for premenopausal women with hormone receptor–positive breast cancer, according to updates from SOFT and TEXT, two randomized, controlled trials, presented at the 2021 San Antonio Breast Cancer Symposium.1 A separate large...
Final Analysis of PALLAS Trial: No Benefit of Adjuvant Palbociclib Plus Endocrine Therapy in Early Breast Cancer
The final protocol-defined analysis of the phase III PALLAS trial confirmed the negative results of the second interim analysis, showing no benefit of palbociclib plus endocrine therapy in the adjuvant breast cancer setting. Michael Gnant, MD, of the Medical University of Vienna, reported these...
Metformin Added to Standard Adjuvant Chemotherapy Fails to Improve Outcomes in Early Breast Cancer
The addition of metformin, a drug commonly used to treat type 2 diabetes, to standard adjuvant treatment failed to improve invasive disease–free survival or overall survival for hormone receptor–positive or –negative breast cancer, according to the results of a large landmark trial led by the...
EMERALD Trial: Oral Selective Estrogen Receptor Degrader as Second- or Third-Line Therapy for Advanced Breast Cancer
Use of the first investigational oral selective estrogen receptor degrader (SERD) elacestrant significantly reduced the risk of death or disease progression and lengthened progression-free survival compared with standard-of-care endocrine therapy with fulvestrant or an aromatase inhibitor in...
PADA-1 Trial: With Early Identification of ESR1 Mutation, Switch to Fulvestrant in Metastatic Breast Cancer
Switching from an aromatase inhibitor to fulvestrant upon early identification of the ESR1 mutation in plasma—before disease progression—doubled progression-free survival in the phase III PADA-1 trial, presented at the 2021 San Antonio Breast Cancer Symposium.1
“PADA-1 is the first trial to...
