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Breast Cancer
Issues in Oncology

Risk of Breast Cancer Recurrence: Serum Detection of Nonadherence to Adjuvant Tamoxifen

In a French study reported in the Journal of Clinical Oncology, Pistilli et al found that serum detection of nonadherence to adjuvant tamoxifen therapy was common and was associated with poorer distant disease-free survival among premenopausal women with breast cancer. Biochemical nonadherence was...

Breast Cancer
Immunotherapy

FDA Approves Combination of Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf for HER2-Positive Breast Cancer

On June 29, the U.S. Food and Drug Administration (FDA) approved a new fixed-dose combination of pertuzumab, trastuzumab, and hyaluronidase-zzxf (Phesgo) for subcutaneous injection in the following indications:  Use in combination with chemotherapy as:  Neoadjuvant treatment for patients with...

Breast Cancer

You-Can-Do-Anything Philosophy Early in Life Inspired Breast Surgeon Laura S. Dominici, MD

Breast surgical oncologist Laura S. Dominici, MD, was born and reared in Litchfield, a small town in the southern portion of New Hampshire. “Our house was on a long dirt road, in a very rural area,” she shared. “There were only about 5,000 residents in the town. My mother was a teacher, and my dad...

Breast Cancer

Study Finds Alpelisib Effective After CDK4/6 Inhibition in Advanced Breast Cancer

The PIK3CA inhibitor alpelisib appears to be effective in patients with PIK3CA-positive, hormone receptor–positive/HER2-negative advanced breast cancer previously treated with a cyclin-dependent kinase (CDK) 4/6 inhibitor plus an aromatase inhibitor, according to the phase II BYLieve trial.1 More...

Breast Cancer

Improving Care for Women With Late-Stage Breast Cancer

The global toll of breast cancer on women is staggering. In 2018, nearly two million new breast cancer cases were diagnosed, an increase of more than 20% since 2008,1 and mortality rates have increased by 14%, bringing the annual number of deaths worldwide from the cancer to more than 611,625.2...

Breast Cancer

Benefit Shown for AKT Inhibitor in LOTUS Survival Analysis

In the phase II LOTUS trial, the addition of the AKT inhibitor ipatasertib to paclitaxel in the first-line treatment of patients with advanced triple-negative breast cancer yielded a strong numerical improvement—a median gain of 9 months—in overall survival, in the final survival analysis reported...

Breast Cancer

Newer Late-Line Treatments May Change Front-Line Standard of Care in HER2-Positive Metastatic Breast Cancer

First- and second-line treatments of HER2-positive metastatic breast cancer have become the standard of care based on solid gains in overall survival, but the prevalence of resistance to these agents is increasing; up to 55% of patients will ultimately develop brain metastases. According to a pair...

Breast Cancer

Repeat Breast Preservation: First Consideration in a Second Ipsilateral Breast Tumor Event

Worldwide, nearly 1.7 million women will be diagnosed with breast cancer. Of that number, nearly 300,000 Americans and more than 500,000 Europeans will be diagnosed with both invasive and in situ breast cancers.1,2 Breast-preserving surgery will initially be performed on approximately 60% of...

Breast Cancer

Early Data Suggest Activity for Oral Selective Estrogen Receptor Degrader in Combination Regimen

The availability of an oral selective estrogen receptor degrader (SERD) would be good news for patients and clinicians as an alternative to intramuscular fulvestrant. The novel agent LSZ102 might fit the bill, based on early activity shown in combination with the targeted agents ribociclib and...

Breast Cancer

Expert Point of View: Julia R. White, MD

Julia R. White, MD, Professor of Radiation Oncology at The Ohio State University, Columbus, and the invited discussant of E2108, put these findings into context with three important studies evaluating the benefit of locoregional therapy for de novo stage IV breast cancer: the study from Tata...

Breast Cancer

Study Finds No Survival Benefit From Local Therapy for de Novo Metastatic Breast Cancer

Women presenting with newly diagnosed de novo metastatic breast cancer derived no additional survival benefit from surgery and radiotherapy given after systemic treatment, although the practice may reduce locoregional progression of disease, according to the results of the phase III E2108 study...

Breast Cancer

Expert Point of View: Susan Domchek, MD, and Aditya Bardia, MD, MPH

“PARP inhibitors are a major advance in the treatment of BRCA1- and BRCA2-mutated tumors, including prostate, breast, ovarian, and pancreatic cancers,” said discussant Susan Domchek, MD, Director of the Basser Center for BRCA at Penn Medicine’s Abramson Cancer Center in Philadelphia. Nevertheless,...

Breast Cancer

Talazoparib Yields No Overall Survival Benefit in EMBRACA Trial Update

The poly (ADP-ribose) polymerase inhibitor talazoparib did not improve overall survival in women with metastatic HER2-negative breast cancer and mutations in the BRCA1 and BRCA2 genes, according to new results from the phase III EMBRACA trial presented at the 2020 American Association for Cancer...

Breast Cancer

Cognitive Impairment in Women Treated for Early Breast Cancer: Chemoendocrine Adjuvant Therapy vs Endocrine Therapy Alone

Women with early-stage breast cancer who received adjuvant chemoendocrine therapy reported greater cognitive impairment at 3 and 6 months than women receiving adjuvant endocrine therapy alone, according to the results from a subgroup of women participating in the TAILORx trial.1 By 12 months, the...

Breast Cancer
Issues in Oncology

Comprehensive Overview of How to Start or Improve a Breast Cancer Unit on the Global Stage

Breast cancer is the leading cause of cancer death among women worldwide. As populations age, the incidence of cancer inevitably increases—the World Health Organization has predicted a dramatic increase in global breast cancer cases during the next 15 years. Moreover, breast cancer is increasing in ...

Breast Cancer

Sacituzumab Govitecan-hziy for Previously Treated Metastatic Triple-Negative Breast Cancer

On April 22, 2020, the antibody-drug conjugate sacituzumab govitecan-hziy was granted accelerated approval for treatment of adult patients with metastatic triple-negative breast cancer who have received at least two prior therapies for metastatic disease.1,2 Supporting Efficacy Data Approval was...

Breast Cancer
Immunotherapy

Study Explores Adding Trastuzumab to Radiotherapy for Women With HER2-Positive DCIS

The addition of trastuzumab to radiotherapy did not reach the protocol objective of a 36% reduction in the ipsilateral breast tumor recurrence rate for women with HER2-positive ductal carcinoma in situ (DCIS) in the NRG Oncology clinical trial NSABP B-43. The trial did find a modest (19%) reduction ...

breast cancer

Sara A. Hurvitz, MD, on Breast Cancer: Four Major Studies on Trastuzumab, Pertuzumab, Anthracyclines, and Chemotherapy De-escalation

Sara A. Hurvitz, MD, of UCLA’s David Geffen School of Medicine, summarizes four breast cancer studies: KATHERINE, on adjuvant trastuzumab vs trastuzumab in patients with residual invasive disease after neoadjuvant therapy for HER2-positive breast cancer; KAITLIN, on trastuzumab emtansine and pertuzumab vs trastuzumab, pertuzumab, and taxane after anthracyclines as adjuvant therapy for high-risk HER2-positive early breast cancer; TRAIN-2, on neoadjuvant chemotherapy with or without anthracyclines for HER2-positive disease; and PHERGain, on chemotherapy de-escalation using an FDG-PET/CT and pathologic response–adapted strategy in HER2-positive early breast cancer (Abstracts 500, 501, 502, and 503).

breast cancer

Cynthia X. Ma, MD, PhD, on Breast Cancer: Neoadjuvant Endocrine Treatment for ER-Positive, HER2-Negative Disease

Cynthia X. Ma, MD, PhD, of Washington University, discusses results from the ALTERNATE trial, which showed neither fulvestrant nor fulvestrant plus anastrozole significantly improved endocrine-sensitive disease rate compared with anastrozole alone in postmenopausal patients with locally advanced estrogen receptor–positive, HER2-negative breast cancer (Abstract 504).

Breast Cancer
Gynecologic Cancers
Genomics/Genetics

Remote Pre- and Posttest Genetic Counseling for Breast and Ovarian Cancer Risk

Genetic testing for cancer risk can significantly improve the prevention or treatment of hereditary cancers, but studies have shown that people who might have a genetic risk often don't get tested. A collaborative team of researchers have tested a possible solution through a clinical trial aimed at ...

Breast Cancer

Renowned Researcher and Surgeon Helps to Transform Treatment of Breast Cancer

Although ‘paradigm shifts’ are frequently referenced in oncology, these are really few and far between. They occur when new data either partially invalidate previously accepted theory or are at complete odds with the existing paradigm. Moving away from the Halsted radical mastectomy, a standard of ...

breast cancer

Seema A. Khan, MD, MPH, on Metastatic Breast Cancer: Systemic vs Locoregional Therapies

Seema A. Khan, MD, MPH, of the Lynn Sage Comprehensive Breast Center, discusses phase III trial results showing that in newly diagnosed metastatic stage IV breast cancer, locoregional treatment of the primary tumor did not offer a greater survival benefit than systemic therapy (Abstract LBA2).

Breast Cancer
Kidney Cancer
Prostate Cancer

Expert in Clinical Trial Methodology Makes His Mark in Genitourinary Cancer

In 2019, at the ASCO Annual Meeting, Ian Tannock, MD, PhD, DSc, FASCO, was honored with the Allen S. Lichter Visionary Award for his contributions to the fields of genitourinary and breast cancers as well as his efforts to optimize clinical trial design. The title of his lecture was “Clinical...

Breast Cancer

Love of Science and a Family Tragedy Set the Course for This Breast Cancer Researcher

When oncology luminary Joyce A. O’Shaughnessy, MD, was in her early teens, her youngest sister, Teri, developed acute lymphocytic leukemia at age 5. Dr. O’Shaughnessy, the oldest of four girls, recalled that her sister’s struggle with the disease had a profound effect on her worldview. “Teri went...

Breast Cancer

Early Local Therapy Did Not Extend Survival in Patients With Newly Diagnosed Metastatic Breast Cancer

Women who present at diagnosis with advanced breast cancer have faced an unanswered question: will local therapy, consisting of surgery and radiation to the tumor in the breast, prolong survival compared to the traditional treatment of systemic treatment alone? Now, data from the randomized phase...

breast cancer

Fatima Cardoso, MD, on Breast Cancer: MammaPrint as Guidance for Adjuvant Chemotherapy

Fatima Cardoso, MD, of Lisbon’s Champalimaud Cancer Center, discusses the long-term results of MINDACT, a large prospective trial showing the clinical utility of the 70-gene signature MammaPrint for adjuvant chemotherapy decision-making. The primary distant metastasis–free survival endpoint at 5 years continued to be met in chemotherapy-untreated women with clinical-high/genomic-low risk disease (Abstract 506).

breast cancer

Nancy U. Lin, MD, on Metastatic Breast Cancer: Tucatinib, Trastuzumab, and Capecitabine

Nancy U. Lin, MD, of Dana-Farber Cancer Institute, discusses the HER2CLIMB study of patients with previously treated HER2-positive metastatic breast cancer that had metastasized to the brain. Adding tucatinib to trastuzumab and capecitabine doubled the intracranial response rate and reduced the risk of death by nearly half, compared with trastuzumab plus capecitabine (Abstract 1005).

Breast Cancer

Tucatinib Combination in Previously Treated HER2-Positive Metastatic Breast Cancer With Brain Metastases

In an analysis of the pivotal phase III HER2CLIMB trial to be reported at the ASCO20 Virtual Scientific Program, Nancy U. Lin, MD, and colleagues found that tucatinib, a small-molecule tyrosine kinase inhibitor that is highly selective for HER2, plus trastuzumab/capecitabine significantly improved...

Breast Cancer
Immunotherapy

ESMO Breast 2020: Novel Biomarkers May Predict Immunotherapy Benefit in Metastatic Breast Cancer

Two novel biomarkers have been found to correlate with improved outcomes with immunotherapy in metastatic breast cancer and may help to identify the patients most likely to benefit from this treatment, according to exploratory studies reported at the European Society for Medical Oncology (ESMO)...

Breast Cancer
Supportive Care

ESMO Breast 2020: Study Finds Physical Activity, Supportive Care to Relieve Cancer-Related Fatigue May Be Underutilized by Breast Cancer Survivors

Cancer-related fatigue is a prevalent and potentially persistent issue among breast cancer survivors. A study presented by Di Meglio et al at the ESMO Breast Cancer Virtual Meeting 2020 (Abstract 183O) has now shown that existing recommendations and proven strategies for reducing fatigue—which can...

Breast Cancer

ESMO Breast 2020: Ipatasertib/Paclitaxel vs Paclitaxel Alone in Advanced Triple-Negative Breast Cancer

Final analysis of the LOTUS trial has shown numerically longer overall survival with ipatasertib plus paclitaxel vs placebo plus paclitaxel in patients with inoperable locally advanced/metastatic triple-negative breast cancer. In all biomarker-defined subgroups (PTEN normal or low, PIK3CA/AKT1/PTEN ...

Breast Cancer
Immunotherapy

ESMO Breast 2020: Patient Preference for Subcutaneous vs Intravenous Pertuzumab/Trastuzumab for HER2-Positive Early Breast Cancer

At the European Society for Medical Oncology (ESMO) Breast Cancer Virtual Meeting 2020, Joyce O’Shaughnessy, MD, of Baylor University Medical Center, reported results from an interim analysis of the PHranceSCa study (Abstract 80O). The study investigators found that over 80% of patients preferred...

Breast Cancer

ASBrS 2020: Analysis of Women Younger Than 40 With Breast Cancer

Patients with breast cancer younger than 40 generally present with a characteristic profile—later-stage disease and more aggressive tumors with poorer prognosis—according to findings from a new study analyzing one of the largest patient data sets compiled to investigate age-related breast cancer...

Breast Cancer
Issues in Oncology

ASBrS 2020: Phone Outreach and Scheduling Assistance Boost Mammography Uptake at an Urban Safety-Net Hospital

Telephone outreach coupled with scheduling assistance significantly increased screening mammography setup and follow-through in a population characterized by low rates of screening mammography and high rates of advanced breast cancer at diagnosis. These are findings from a new study conducted by...

Breast Cancer

ASBrS 2020: Cosmetic Outcomes With Lumpectomy for Multiple Ipsilateral Breast Cancer

The majority of women with multiple tumors in a single breast reported good or excellent satisfaction with the cosmetic results of lumpectomy, despite loss of significant breast volume and often multiple incisions. These findings are from an ongoing multicenter prospective trial examining the...

Breast Cancer

Tucatinib in Previously Treated HER2-Positive Metastatic Breast Cancer

On April 17, 2020, tucatinib was approved for use in combination with trastuzumab and capecitabine for treatment of adult patients with advanced unresectable or metastatic HER2-positive breast cancer. These patients included those with brain metastases and those who have received one or more prior...

Breast Cancer

Genetics May Soon Guide Targeted Treatment of Brain Metastases

Genetic mapping of brain metastases, in the laboratory of Priscilla Brastianos, MD, Director of the Central Nervous System Metastasis Center at Massachusetts General Hospital/Harvard Medical School, and Scott Carter, PhD, at the Harvard School of Public Health, is yielding findings that could...

Breast Cancer
Immunotherapy

Expert Point of View: Pamela N. Munster, MD

Formal I-SPY 2 trial discussant, Pamela N. Munster, MD, Professor in the Department of Medicine, University of California, San Francisco, found the study promising but said confirmatory trials are needed. “What we know so far in preoperative therapy for breast cancer is that pathologic complete...

Kidney Cancer
Neuroendocrine Tumors
Issues in Oncology
Lung Cancer
Breast Cancer

Selected Poster Presentations on Cancer Therapeutics and More

Although the live 2020 National Comprehensive Cancer Network (NCCN) Annual Conference was canceled, more than 100 posters scheduled for presentation are now available online, as part of the NCCN 2020 Virtual Annual Conference. The ASCO Post has summarized some of the clinical trial updates we found ...

Breast Cancer

Does Text Messaging Support Adherence to Adjuvant Aromatase Inhibitor Therapy in Women With Early-Stage Breast Cancer?

In the SWOG S1105 trial reported in the Journal of Clinical Oncology, Dawn L. Hershman, MD, MS, and colleagues found that a text message intervention did not reduce the rate of early discontinuation of adjuvant aromatase inhibitor therapy in postmenopausal women with early-stage breast cancer....

breast cancer

Jennifer K. Litton, MD, on Breast Cancer: EMBRACA Trial on Talazoparib vs Chemotherapy

Jennifer K. Litton, MD, of The University of Texas MD Anderson Cancer Center, discusses study results of talazoparib vs chemotherapy in patients with BRCA1/2-mutated HER2-negative advanced breast cancer. In this final analysis, patient-reported outcomes continued to favor the PARP inhibitor, even though it did not improve overall survival compared with chemotherapy (Abstract CT071).

Breast Cancer
Immunotherapy

Pooled Analysis Supports Benefit of Dual HER2-Targeted Therapy, but Questions Remain

In the treatment of HER2-positive early breast cancer, patients who receive dual HER2-targeted therapy in both the neoadjuvant and adjuvant settings are less likely to experience recurrence than those who received dual therapy only as neoadjuvant treatment, according to a pooled analysis of...

Breast Cancer
Immunotherapy

KEYNOTE-522: A Biomarker Resource for PD-1 Inhibition in Early Triple-Negative Breast Cancer

In the phase III KEYNOTE-522 trial reported in The New England Journal of Medicine and reviewed in this issue of The ASCO Post, Schmid et al1 found that the addition of pembrolizumab to neoadjuvant chemotherapy in stage II or III triple-negative breast cancer significantly improved the pathologic...

Breast Cancer
Immunotherapy

Neoadjuvant and Adjuvant Pembrolizumab Improves Outcomes in Early Triple-Negative Breast Cancer

As reported in The New England Journal of Medicine by Peter Schmid, MD, PhD, of Barts Cancer Institute, Queen Mary University of London, and colleagues, analyses in the phase III KEYNOTE-522 trial have shown that the addition of pembrolizumab to neoadjuvant chemotherapy and the use of adjuvant...

Breast Cancer

Expert Point of View: Virginia Kaklamani, MD, DSc, and Minetta Liu, MD

Virginia Kaklamani, MD, DSc, Professor of Medicine and Head of the Breast Cancer Program at UT Health San Antonio MD Anderson Cancer Center, moderated a press conference where Milan Radovich, PhD, reported the robust ability of circulating tumor DNA (ctDNA) and circulating tumor cells to predict...

Breast Cancer

Studies Show Circulating Tumor Material May Predict Outcomes After Neoadjuvant Therapy for Breast Cancer

In early triple-negative breast cancer, the presence of circulating tumor DNA (ctDNA) and circulating tumor cells after neoadjuvant chemotherapy may enable risk stratification of patients for disease recurrence and may predict outcomes, according to a preplanned correlative analysis of the phase II ...

Breast Cancer
Genomics/Genetics

Joint Guideline Sheds Light on Management of Hereditary Breast Cancer

As germline genetic testing becomes more widespread among patients with breast cancer, recommendations for the appropriate management of patients with hereditary breast cancer are needed. Until now, no ASCO guideline has addressed the management of hereditary breast cancer, even for carriers of...

Breast Cancer

Vascular Imaging for Detection of Breast Cancer: Best of Two Worlds?

For breast imaging, contrast-enhanced mammography, which uses the anatomic imaging of a mammogram in addition to imaging neovascularity, can offer the overall screening capability of standard mammography and the sensitivity of magnetic resonance imaging (MRI) at a fraction of the cost of MRI,...

Breast Cancer

Can Breast Cancer Surgery Be Eliminated in ‘Exceptional Responders’ to Neoadjuvant Therapy?

Can patients with breast cancer who achieve an “exceptional response” to neoadjuvant therapy safely forgo surgery? That is a question being seriously explored in multinational trials. “We’ve known for a long time that we can eliminate disease in many patients if they have chemosensitive tumors....

breast cancer
immunotherapy

Steven J. O’Day, MD, on Triple-Negative Breast Cancer: Clinical Benefit With Pembrolizumab Plus Imprime PGG

Steven J. O’Day, MD, of the John Wayne Cancer Institute, discusses phase II results for the combination of pembrolizumab with a novel innate immune activator, Imprime PGG, as second-line treatment for patients with metastatic triple-negative breast cancer ( Abstract CT073).

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