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2019 San Antonio Breast Cancer Symposium

Breast Cancer
Immunotherapy

Expert Point of View: Kevin Kalinsky, MD, MS

Commenting on SAFIR02-IMMUNO for The ASCO Post, Kevin Kalinsky, MD, MS, Associate Professor of Medicine at ­NewYork-Presbyterian Hospital/Columbia University Irving Medical Center, said the findings o...

Breast Cancer
Immunotherapy

Mixed Results With Durvalumab Maintenance in HER2-Negative Advanced Breast Cancer

Given as maintenance therapy, the checkpoint inhibitor durvalumab significantly improved overall survival in patients with metastatic triple-negative breast cancer and yielded a numerical but not sign...

Breast Cancer
Immunotherapy

No Improved Pathologic Complete Response With Atezolizumab in Early Triple-Negative Breast Cancer

The addition of the checkpoint inhibitor atezolizumab to chemotherapy with carboplatin and nab-paclitaxel failed to significantly improve pathologic complete response rates compared with chemotherapy ...

Breast Cancer

Expert Point of View: Sara M. Tolaney, MD, MPH

Sara M. Tolaney, MD, MPH, Assistant Professor of Medicine at Harvard Medical School and Associate Director of the Susan F. Smith Center for Women’s Cancers at Dana-Farber/Brigham and Women’s Cancer C...

Breast Cancer

Triple-Negative Breast Cancer Responds to Novel Therapy

The phase II KEYNOTE-890 trial is a small but interesting study in patients with inoperable advanced triple-negative breast cancer. After one injection of intratumoral tavokinogene telseplasmid, a pla...

Breast Cancer
Immunotherapy

Neoadjuvant and Adjuvant Pembrolizumab Improves Pathologic Complete Response Rate in Triple-Negative Breast Cancer

The addition of pembrolizumab to neoadjuvant and adjuvant chemotherapy achieves higher rates of pathologic complete response compared with placebo in patients with triple-negative breast cancer, accor...

Breast Cancer

Expert Point of View: Harold J. Burstein, MD, PhD, FASCO

Commenting on Dr. DeMichele’s poster presentation at the 2019 San Antonio Breast Cancer Symposium, Harold J. Burstein, MD, PhD, FASCO, Professor of Medicine at Harvard Medical School and a medical on...

Breast Cancer

Real-World Use of Palbociclib and Abemaciclib Explored in Two Studies Based on Electronic Health Records Database

Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors are changing the landscape of the treatment of hormone receptor (HR)-positive/HER2-negative breast cancer. Three CDK4/6 inhibitors are approved by t...

Breast Cancer

When Added to Other Systemic Therapies, Capecitabine Improves Outcomes in Triple-Negative Breast Cancer

Capecitabine is often used to treat breast cancer, but the best use of capecitabine is open for discussion. According to a large meta-analysis of the effects of capecitabine in early breast cancer, ca...

Breast Cancer
Immunotherapy

Study Reports Similar Efficacy but No Less Toxicity With Adjuvant T-DM1 vs Taxane/Trastuzumab in Early Breast Cancer

The antibody-drug conjugate ado-trastuzumab emtansine (T-DM1) failed to show improved safety when compared with paclitaxel plus trastuzumab as adjuvant therapy in patients with stage 1 HER2-positive b...

Breast Cancer

Expert Point of View: Steven J. Isakoff, MD, PhD

“It is encouraging that the invasive disease–free survival observed in the primary analysis is holding up, particularly in the node-positive population. With longer follow-up, the addition of pertuzum...

Breast Cancer

APHINITY Update Supports Benefit of Pertuzumab-Based Triplet in Early HER2-Positive, Node-Positive Breast Cancer

Six-year follow-up of the APHINITY trial found a modest, but not statistically significant, overall survival benefit for the addition of pertuzumab to chemotherapy plus trastuzumab vs chemotherapy/tra...

Breast Cancer

Expert Point of View: Charles L. Shapiro, MD

Charles L. Shapiro, MD, Professor of Medicine, Hematology and Oncology at the Icahn School of Medicine at Mount Sinai, New York, commented on the Women’s Health Initiative update. “These trials invol...

Breast Cancer

Oral Paclitaxel Outperforms Intravenous Formulation in Phase III Trial

In the first reported phase III study of an oral taxane, an investigational oral form of paclitaxel yielded a higher overall response rate and produced less neuropathy than standard intravenous paclit...

Breast Cancer

Studies Find Estrogen Alone Protective, Estrogen Plus Progestin Detrimental in Postmenopausal Women

In postmenopausal women without prior breast cancer, estrogen alone reduced the risk of breast cancer, not only during treatment, but for years after estrogen was stopped. It also reduced deaths as a ...

Breast Cancer

Expert Point of View: Shelley Hwang, MD, MPH

Shelley Hwang, MD, MPH, the Mary and Deryl Hart Distinguished Professor of Surgery, Duke University School of Medicine in North Carolina, discussed the APBI IMRT Florence trial in a meeting highlight...

Breast Cancer

Partial-Breast Irradiation Favored Over Whole-Breast in Early Breast Cancer

Patients with early breast cancer with small, node-negative tumors can safely be treated with accelerated partial-breast irradiation using intensity-modulated radiotherapy. According to the 10-year me...

Breast Cancer

Expert Point of View: Debra A. Patt, MD, MPH, MBA, FASCO, and C. Kent Osborne, MD, FASCO

Debra A. Patt, MD, MPH, MBA, FASCO, Clinical Professor at Dell Medical School at The University of Texas at Austin and Executive Vice President of Public Policy and Strategy Initiatives for Texas Onc...

Breast Cancer

Breast Cancer Chemoprevention Effect Maintained Long After Stopping Anastrozole Therapy

For postmenopausal women at high risk for developing breast cancer—largely based on family history—anastrozole taken for 5 years maintained a preventive effect for at least an additional 7 years after...

Breast Cancer
Immunotherapy

Tucatinib Combination Extends Survival in HER2-Positive Metastatic Breast Cancer, Including Patients With Brain Metastases

For patients with progressing HER2-positive metastatic breast cancer previously treated with trastuzumab, pertuzumab, and ado-trastuzumab emtansine (T-DM1), no single regimen is an established standar...

Breast Cancer

Residual Cancer Burden Is Prognostic of Outcomes Across Breast Cancer Subtypes

Residual cancer burden after neoadjuvant chemotherapy can accurately predict disease recurrence and survival across all breast cancer subtypes, according to the findings from a meta-analysis presented...

Breast Cancer

Extended Letrozole Boosts Disease-Free Survival in 10-Year Update of NSABP B-42 Trial

“In the 10-year analysis of the NSABP B-42 trial, the effect of extended treatment with 5 years of letrozole on disease-free survival persisted and reached statistical significance. There was no signi...

Breast Cancer

Mixed Results With Weekly Nab-paclitaxel, Denosumab in Primary Breast Cancer

A weekly schedule of nab-paclitaxel as part of neoadjuvant chemotherapy significantly improved pathologic complete response compared with nab-paclitaxel given 2 weeks out of every 3 weeks (2/3) in pat...

breast cancer

Hope S. Rugo, MD, on Metastatic Triple-Negative Breast Cancer: Retrospective Analysis of PD-L1 Immunohistochemistry Assays

Hope S. Rugo, MD, of the University of California San Francisco Comprehensive Cancer Center, discusses a retrospective analysis on the effectiveness of the VENTANA PD-L1 SP142 assay, the Dako 22C3 ass...

Breast Cancer

Expert Point of View: Steven J. Isakoff, MD, PhD

Steven J. Isakoff, MD, PhD, a medical oncologist at Massachusetts General Hospital, Boston, commented on the results of the DESTINY-Breast01 trial. “These data are extraordinarily encouraging, sugges...

Breast Cancer

Novel Antibody-Drug Conjugate Shows Efficacy in Women With Pretreated, Metastatic HER2-Positive Breast Cancer

The novel antibody-drug conjugate [fam-] trastuzu­mab deruxtecan (T-DXd) achieved high response rates and durable responses in heavily pretreated patients with HER2-positive metastatic breast cancer, ...

breast cancer

Terry P. Mamounas, MD, MPH, on Extending Letrozole Treatment in Hormone Receptor–Positive Breast Cancer

Terry P. Mamounas, MD, MPH, of Orlando Health UF Health Cancer Center, discusses 10-year results from NRG Oncology/NSABP B-42, which showed that, for postmenopausal women with hormone receptor–positiv...

breast cancer
immunotherapy

Luca Gianni, MD, on the Neoadjuvant Treatment of Triple-Negative Breast Cancer

Luca Gianni, MD, of the Fondazione Michelangelo, discusses findings from the NeoTRIP trial on pathologic complete response to neoadjuvant treatment with or without atezolizumab in triple-negative, ear...

breast cancer

Hongchao Pan, PhD, on an Update on 5 Years of Endocrine Therapy for Early Breast Cancer

Hongchao Pan, PhD, of the University of Oxford, discusses an analysis of 86,000 women in the Early Breast Cancer Trialists’ Collaborative Group database, which showed that the risk of distant recurren...

breast cancer

Nadine M. Tung, MD, on HER2-Negative Breast Cancer: INFORM Trial of Cisplatin vs Doxorubicin/Cyclophosphamide

Nadine M. Tung, MD, of Beth Israel Deaconess Medical Center, discusses cisplatin vs doxorubicin/cyclophosphamide (AC) as neoadjuvant treatment in BRCA-mutation carriers with HER2-negative breast cance...

breast cancer

Ivana Sestak, PhD, on Clinical Treatment Score From TAILORx: Predicting Distant Breast Cancer Recurrence

Ivana Sestak, PhD, of Queen Mary University of London and the Centre for Cancer Prevention, discusses study findings that confirm the prognostic ability of the Clinical Treatment Score at 5 years (CTS...

breast cancer

Marie-Jeanne T.F.D. Vrancken Peeters, MD, PhD, on Omitting Breast Surgery: Results of the MICRA Trial

Marie-Jeanne T.F.D. Vrancken Peeters, MD, PhD, of the Netherlands Cancer Institute, discusses an interim study analysis showing that ultrasound-guided core biopsies of the breast in patients with exce...

breast cancer
immunotherapy

Ariella B. Hanker, PhD, on Therapeutic Implications of HER2 and HER3 Mutations in Breast Cancer

Ariella B. Hanker, PhD, of UT Southwestern Medical Center, discusses data showing that breast cancers expressing co-occurring HER2 and HER3 mutations may require the addition of a phosphoinositide 3-k...

breast cancer

Rowan T. Chlebowski, MD, PhD, on Breast Cancer: Findings From The Women’s Health Initiative

Rowan T. Chlebowski, MD, PhD, of the Lundquist Institute at Harbor-UCLA Medical Center, discusses the long-term influence of using estrogen plus progestin or estrogen alone on breast cancer incidence ...

breast cancer

Gerardo Antonio Umanzor Funez, MD, on Metastatic Breast Cancer: Comparing IV and Oral Formulations of Paclitaxel

Gerardo Antonio Umanzor Funez, MD, of Liga Contra El Cáncer, discusses phase III findings on intravenous (IV) paclitaxel and oral paclitaxel plus encequidar (a novel P-gp inhibitor), the first orally ...

breast cancer

Ian E. Krop, MD, PhD, on Trastuzumab Deruxtecan for Patients With Previously Treated, HER2-Positive Metastatic Breast Cancer

Ian E. Krop, MD, PhD, of Dana-Farber Cancer Institute, discusses phase II trial findings on trastuzumab deruxtecan, a HER2-targeting antibody-drug conjugate, in patients with HER2-positive metastatic ...

breast cancer

Jack Cuzick, PhD, on the International Breast Cancer Intervention Study II: 10-Year Results

Jack Cuzick, PhD, of Queen Mary University of London, discusses the substantially greater benefits of anastrozole as compared with tamoxifen in terms of preventing breast cancer, with no increase in f...

breast cancer

Madeleine M.A. Tilanus-Linthorst, MD, PhD, on MRI vs Mammography: Comparing Cost and Effectiveness

Madeleine M.A. Tilanus-Linthorst, MD, PhD, of Erasmus University, reports data from the first randomized trial comparing MRI breast cancer screening with mammography in women with a familial risk. Bec...

breast cancer

Joerg Heil, MD, PhD, on Image-Guided Vacuum-Assisted Breast Biopsy

Joerg Heil, MD, PhD, of the University Hospital Heidelberg, discusses findings on how accurately this technique can diagnose residual disease and pathologic complete response after neoadjuvant chemoth...

breast cancer
immunotherapy

Hope S. Rugo, MD, on HER2-Positive Metastatic Breast Cancer: SOPHIA Trial of Chemotherapy Plus Margetuximab or Trastuzumab

Hope S. Rugo, MD, of the University of California San Francisco Comprehensive Cancer Center, discusses trial data on margetuximab plus chemotherapy, which improved progression-free survival in patient...

breast cancer

Javier Cortes, MD, PhD, on Triple-Negative Breast Cancer: Results From the KEYNOTE-119 Trial of Pembrolizumab vs Chemotherapy

Javier Cortes, MD, PhD, of the IOB Institute of Oncology, discusses study findings that suggested pembrolizumab offered a prolonged survival benefit compared to chemotherapy for a subset of patients w...

breast cancer

Joseph Sparano, MD: The William L. McGuire Memorial Lecture

Joseph Sparano, MD, of the Montefiore Medical Center, discusses three challenges: How can gene-expression profiles and other diagnostic tests be used to guide the use of adjuvant systemic therapy? ...

breast cancer

Milan Radovich, PhD, on ctDNA After Neoadjuvant Chemotherapy and Recurrence in Triple-Negative Breast Cancer

Milan Radovich, PhD, of Indiana University School of Medicine, discusses trial findings that show patients with triple-negative breast cancer who are at high risk of relapse after receiving preoperati...

breast cancer
genomics/genetics

Belinda Kingston, MB ChB, on the Genomic Landscape of Breast Cancer Based on ctDNA Analysis

Belinda Kingston, MB ChB, of the Institute of Cancer Research London, discusses next-generation sequencing results from the plasmaMATCH trial, including the incidence of gene alterations overall, as w...

breast cancer

Tari A. King, MD, on Molecular Differences Between Primary and Metastatic Breast Tumors

Tari A. King, MD, of Brigham and Women’s Hospital and Dana-Farber/ Brigham and Women’s Cancer Center, discusses retrospective findings from the AURORA U.S. Network on molecular differences between pri...

breast cancer

Rashmi K. Murthy, MD, on HER2-Positive Metastatic Breast Cancer: HER2CLIMB Trial of Tucatinib, Capecitabine, and Trastuzumab

Rashmi K. Murthy, MD, of The University of Texas MD Anderson Cancer Center, discusses data on the efficacy and safety of tucatinib, trastuzumab, and capecitabine, a treatment regimen under investigati...

Breast Cancer

SABCS 2019: Oral vs Intravenous Paclitaxel for Patients With Metastatic Breast Cancer

Patients with metastatic breast cancer who received an oral formulation of paclitaxel had better response and survival and less neuropathy than patients who received intravenous paclitaxel, according ...

Breast Cancer

SABCS 2019: Residual Cancer Burden After Neoadjuvant Chemotherapy as a Predictive Tool

A large meta-analysis of patients with breast cancer showed that residual cancer burden after neoadjuvant chemotherapy is an accurate long-term predictor of recurrence and survival across all breast c...

Breast Cancer

SABCS 2019: Breast Cancer Incidence With Estrogen/Progestin vs Estrogen Alone in Postmenopausal Women

A study investigating the long-term influence of estrogen plus progestin compared with estrogen alone on breast cancer incidence in postmenopausal women has found that the menopausal hormone therapies...

Breast Cancer

SABCS 2019: ctDNA May Be an Independent Predictor of Disease Recurrence in Patients With Early-Stage Triple-Negative Breast Cancer

The detection of circulating tumor DNA (ctDNA) in patients with early-stage triple-negative breast cancer treated with surgery following neoadjuvant chemotherapy is an independent predictor of disease...

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