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Role of Circulating Tumor DNA in Early-Stage Colon Cancer
This is Part 1 of Updates in Colorectal Cancer, a four-part video roundtable series. Scroll down to watch the other videos from this Roundtable. In this video, Drs. Cathy Eng, Arvind Dasari, and Smitha Krishnamurthi discuss the role of circulating tumor DNA (ctDNA) in early-stage colon cancer....
ctDNA Analysis of Acquired EGFR Resistance Alterations With First-Line Cetuximab Plus Chemotherapy in Patients With Metastatic Colorectal Cancer
In a circulating tumor DNA (ctDNA) substudy from the CALGB/SWOG-80405/Alliance trial reported in the Journal of Clinical Oncology, Kanwal Raghav, MD, MBBS, and colleagues found that first-line use of the anti-EGFR antibody cetuximab combined with chemotherapy was associated with only a small number ...
Preclinical Study Finds New Synthetic Lethal Agent Could Be Potential Treatment for Pancreatic Cancer
Researchers at The Marvin and Concetta Greenberg Pancreatic Cancer Institute at Fox Chase Cancer Center have found that a new synthetic lethal agent could be an effective treatment for pancreatic cancers with DNA damage repair (DDR) defects. Igor Astsaturov, MD, PhD, a co-director of the Institute...
Prostate Tumor Biology May Be Influenced by Genetic Ancestry
Certain genetic variants found in prostate tumors of men of African descent were associated with African ancestry, according to two studies presented at the 15th American Association for Cancer Research (AACR) Conference on the Science of Cancer Health Disparities in Racial and Ethnic Minorities...
Georgina V. Long, MD, PhD, on Melanoma: Findings on Circulating Tumor DNA, Disease Recurrence, and Immunotherapy
Georgina V. Long, MD, PhD, of the Melanoma Institute Australia, discusses results from the CheckMate 915 trial, an analysis of the pretreatment circulating tumor DNA, along with other clinical and translational baseline factors, and their association with disease recurrence in patients with stage...
Acquired EGFR Inhibitor Resistance Alterations Identified in ctDNA Analysis in Patients With Refractory Metastatic Colorectal Cancer
In a study reported in the Journal of Clinical Oncology by Topham et al, circulating tumor DNA (ctDNA) analysis indicated significantly increased frequencies of multiple potential EGFR inhibitor resistance alterations among patients with refractory metastatic colorectal cancer with vs without prior ...
Research Explores Multicancer Early Detection Blood Testing
Physicians, care providers, and payers may be preparing for a major shift in early cancer detection that will affect almost every stage of cancer diagnosis and treatment. New data supporting the accuracy of multicancer early detection blood testing, presented by Deb Schrag, MD, FASCO, MPH, at the...
ASCO Updated Guideline of Biomarkers in Metastatic Breast Cancer Supports PIK3CA, BRCA1/2, PD-L1 Testing
ASCO has issued a new practice guideline update on the use of biomarkers in the management of metastatic breast cancer.1 The updated guideline revisits recommendations from the 2015 guideline and addresses topics that have emerged since then in the move toward personalized medicine in metastatic...
Companion Diagnostic to Identify Patients With Endometrial Cancer Eligible for Pembrolizumab Therapy Approved by the FDA
On August 11, 2022, Roche announced the U.S. Food and Drug Administration (FDA) approval of a label expansion for the Ventana MMR RxDx Panel. The Ventana MMR RxDx Panel is the first immunohistochemistry companion diagnostic test to aid in identifying patients whose solid tumors are deficient in DNA ...
Study Examines How Genetic Mutations May Contribute to the Development of Cholangiocarcinoma
A team of researchers from the University of Rochester discovered how certain genetic mutations fuel the growth of cholangiocarcinoma, a rare but aggressive type of malignancy that has been on the rise in the United States. Their work, published by Guo et al in Cell Reports this week, details the...
New Cervicovaginal Epigenetic Test for Screening of Suspected Endometrial Cancer
As reported in the Journal of Clinical Oncology, Herzog et al have developed a simple noninvasive test for screening for suspected endometrial cancer—the Women’s Cancer Risk Identification-Quantitative Polymerase Chain Reaction Test for Endometrial Cancer (WID-qEC)—that has shown accuracy in...
Can Patients With Low-Risk Nasopharyngeal Cancer Be Treated Safely With Radiotherapy Alone?
Intensity-modulated radiation therapy (IMRT) alone may be considered an effective treatment option for “low-risk” T1–2N1 and T3N0 nasopharyngeal carcinoma, according to trial data presented by Jun Ma, MD, MS, Professor of Radiation Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China,...
Radiotherapy Alone vs Concurrent Chemoradiotherapy in Low-Risk Nasopharyngeal Cancer
In a Chinese phase III trial reported in JAMA, Tang et al found that radiotherapy alone was noninferior to concurrent chemoradiotherapy in failure-free survival in patients with low-risk nasopharyngeal carcinoma. Study Details In the open-label multicenter trial, 341 patients were randomly assigned ...
Expert Point of View: Quynh-Thu Le, MD, FACR, FASTRO
According to Quynh-Thu Le, MD, FACR, FASTRO, Professor and Chair of Radiation Oncology at Stanford, these results suggest that monitoring circulating human papillomavirus (HPV) DNA may lead to the detection of relapse prior to imaging. In an interview with The ASCO Post, Dr. Le also noted that...
Blood Test Predicts Recurrence of HPV-Driven Oropharyngeal Cancer After Treatment
A blood-basedliquid biopsy may accurately predict recurrence of human papillomavirus (HPV)-driven oropharyngeal squamous cell carcinoma following treatment, according to data presented at the 2022 Multidisciplinary Head and Neck Cancers Symposium.1 Results of the large, multi-institutional study...
Head and Neck Cancer 2021–2022 Almanac
Head and neck cancer is the seventh most common cancer in the world, with 1.1 million new diagnoses reported annually.1 In the United States, the incidence of oral and pharyngeal cancers is over 54,000 cases per year, resulting in over 11,000 yearly deaths.2 Although smoking and alcohol consumption ...
Analysis of Outcomes in NCI-Sponsored Phase I Trials in Solid Tumors: 2000–2019
As reported in The Lancet by Chihara et al, analysis of outcomes in National Cancer Institute (NCI)-sponsored, investigator-initiated phase I trials in solid tumors over a 20-year period has shown a near doubling of objective response rate, with no increase in treatment-related mortality. Study...
Researchers Identify Markers of Chemotherapy Resistance and Outcome in Patients With Triple-Negative Breast Cancer
Researchers have identified biological markers in patients with triple-negative breast cancer that are associated with resistance to chemotherapy. The study was published by Anurag et al in the journal Cancer Discovery and was funded by the National Cancer Institute’s Clinical Proteomics Tumor...
Rucaparib Maintenance After Platinum-Based Chemotherapy for Metastatic Urothelial Carcinoma
In a phase II trial reported in the Journal of Clinical Oncology, Simon J. Crabb, BSc, MBBS, MRCP, PhD, and colleagues found that maintenance therapy with the poly (ADP-ribose) polymerase (PARP) inhibitor rucaparib vs placebo was associated with prolonged progression-free survival in patients with...
Snapshots of Studies of Interest Presented at ASCO 2022
The 2022 ASCO Annual Meeting was filled with important science, engaging data, and several practice-changing abstracts, many of which have been covered in detail on other pages or in earlier issues of The ASCO Post. There were numerous high-impact studies and attendees, whether present at the...
ASCO 2022: Conversations in Colorectal Cancer
On this episode, we’re featuring discussions about data in colorectal cancer that were presented at the 2022 ASCO Annual Meeting. Dr. Michael Overman, of The University of Texas MD Anderson Cancer Center, speaks with two presenters about guiding therapy with circulating tumor DNA and refining...
Study Shows Germline Testing May Be Warranted for All Patients With Lung Cancer
Germline testing may be warranted for all patients with lung cancer, according to research presented by Sorscher et al during the August ASCO Plenary Series Program (Abstract 388570). The retrospective review of nearly 8,000 patients with lung cancer undergoing germline testing found that 14.9% had ...
Study Reveals Potential Genomic Contributors to the Development of DLBCL
By searching previously ignored regions of the genome, researchers have found a multitude of new genetic mutations that may contribute to diffuse large B-cell lymphoma (DLBCL). These findings were published by Bal et al in Nature. “Our findings not only show that these mutations can contribute to...
Molecular Map Reveals Insights Into the Genetic Drivers of CLL
A newly constructed map of the landscape of genetic changes in chronic lymphocytic leukemia (CLL) may provide a better understanding of this complex malignancy, which could lead to more accurate prognoses for patients, improved diagnostics, and novel treatments. These research findings were...
FDA Approves Ventana MMR RxDx Panel to Identify Patients With dMMR Solid Tumors and pMMR Endometrial Cancer Eligible for Treatment With Pembrolizumab
On August 11, Roche announced the U.S. Food and Drug Administration (FDA) approval of a label expansion for the Ventana MMR RxDx Panel. The Ventana MMR RxDx Panel is the first immunohistochemistry (IHC) companion diagnostic test to aid in identifying patients whose solid tumors are deficient in DNA ...
Study Finds Adding Tremelimumab and Durvalumab to Chemotherapy Improves Overall Survival in Metastatic NSCLC Regardless of KRAS/STK11/KEAP1 Mutations
Patients with metastatic non–small cell lung cancer (NSCLC) who received a combined therapy of tremelimumab, durvalumab, and chemotherapy experienced longer overall survival compared with those who received chemotherapy alone, regardless of STK11, KEAP1, or KRAS mutational status. These findings...
An Early Encounter With Cancer Sets a Path to a Career in Oncology Research
To shed some light on the importance of caring for the whole patient and his or her caregiver, as well as the role of cellular aging and oncogenesis, The ASCO Post recently spoke with Kaumudi Bhawe, PhD, a clinical scientist with Cancer Commons in Mountain View, California. Dr. Bhawe has more than ...
How Smoking Cessation After a Lung Cancer Diagnosis Improves Overall Survival
Despite data showing that cigarette smoking is the number one risk factor for the development of lung cancer,1 and a leading cause of preventable disease, disability, and death in the United States, an estimated 30.8 million American adults continue to smoke cigarettes.2 Globally, the number of...
Study Sheds Light on Mechanisms Driving Cancer Induced by Organic Solvent Used in Printing Industry
1,2-Dichloropropane (1,2-DCP) is a synthetic organic solvent used in the printing industry. It was linked to cholangiocarcinoma in 2013, when printing company employees in Osaka, Japan, exposed to 1,2-DCP were diagnosed with the cancer. Thereafter, the International Agency for Research on Cancer...
WHO Classification of Tumors of Hematopoietic and Lymphoid Tissues
The ASCO Post is pleased to present Hematology Expert Review, an ongoing feature that quizzes readers on issues in hematology. In this installment, Drs. Syed Ali Abutalib and L. Jeffrey Medeiros explore the World Health Organization (WHO) classification of hematopoietic and lymphoid tissue...
Deciphering the Elusive Origin and Pathways of Brain Metastases
The effective treatment of patients with brain metastases is an unmet need because, until fairly recently, patients with brain metastases were excluded from clinical trials of systemic therapies. However, the emergence of molecular targeted therapies has allowed a new treatment approach in patients ...
EAU22: ctDNA May Help to Predict Response to Atezolizumab in Patients With Bladder Cancer
Researchers who treated a group of patients with bladder cancer with the immunotherapy atezolizumab after they had undergone surgery have found that patients whose blood contained circulating tumor DNA (ctDNA) responded very well to the treatment. The study was presented at the European Association ...
History of Radiation Oncology in the United States
Part 1 of this two-part report described the beginnings of radiation oncology in the United States, including many of the field’s early pioneers and the rise of associated professional societies. In part 2, we will consider the advances in technology and biology that are the foundation of modern...
Expert Point of View: Marianne E. Pavel, MD
Based on the final results of ECOG-ACRIN E2211, invited discussant Marianne E. Pavel, MD, of Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany, concluded: “Capecitabine/temozolomide is a preferred regimen…, but temozolomide can still be an option in patients who do not tolerate...
Expert Point of View: Ben Ho Park, MD, PhD
The invited discussant of the DYNAMIC study was Ben Ho Park, MD, PhD, who said the study “has really moved the needle for circulating tumor DNA [ctDNA] analysis and guiding therapy.” Dr. Park is Director of the Vanderbilt-Ingram Cancer Center, Nashville. Speaking more broadly about the use of...
Circulating Tumor DNA–Guided Approach to Treating Stage II Colon Cancer
The use of postoperative circulating tumor DNA (ctDNA) in stage II colon cancer spared many patients the need for adjuvant chemotherapy without compromising recurrence-free survival, according to the phase II DYNAMIC study.1 “The strategy of using ctDNA results to inform treatment almost halved...
First Randomized Chemotherapy Study in Relapsed or Refractory Ewing Sarcoma Reports Modest Gains in Survival With High-Dose Ifosfamide
High-dose ifosfamide extended event-free and overall survival in patients with recurrent or primary refractory Ewing sarcoma compared with other commonly used chemotherapy regimens, according to the results of a randomized trial reported at the 2022 ASCO Annual Meeting by lead author Martin...
Intermittent FOLFIRI Plus Panitumumab Proves More Effective, Less Toxic Than Continuous Treatment in Metastatic Colorectal Cancer
In patients with RAS/BRAF wild-type metastatic colorectal cancer, FOLFIRI (fluorouracil, leucovorin, irinotecan) plus panitumumab can be given intermittently rather than continuously, without compromising outcomes, according to the results of the IMPROVE study presented at the 2022 ASCO Annual...
Analysis of High-Risk HPV mRNA vs DNA Testing in Screening for Cervical Cancer
In a systematic review and meta-analysis reported in The Lancet Oncology, Arbyn et al found that the performance of a high-risk human papillomavirus (hrHPV) mRNA test in screening for cervical cancer was similar to that of validated hrHPV DNA tests in detection of cervical intraepithelial neoplasia ...
DESTINY-Breast04 Trial: T-DXd Significantly Improves Survival in Patients With HER2-Low Metastatic Breast Cancer
The antibody-drug conjugate fam-trastuzumab deruxtecan-nxki (T-DXd) doubled progression-free survival compared with chemotherapy alone in patients with “HER2-low” metastatic breast cancer—ie, patients with low levels of HER2 expression. The agent also extended overall survival for patients with low ...
Expert Point of View: Guru P. Sonpavde, MD
Guru P. Sonpavde, MD, Director of the Bladder Cancer Program at Dana-Farber Cancer Institute and a faculty member of Harvard Medical School, Boston, said these follow-up data from CheckMate 274 provide reassurance that the disease-free survival benefit is maintained with adjuvant nivolumab. “We...
Four New Teams Receive $100M to Take on Cancer's Toughest Challenges
Representing a total investment of $100 million, the following teams are the first to be funded through the partnership between Cancer Research UK and the National Cancer Institute in the United States. These teams join the Cancer Grand Challenges community, which now unites more than 700...
Germline Variants in Types of Cancer Without Hereditary Testing Guidelines
In a study reported in JAMA Network Open, Timothy A. Yap, MBBS, PhD, FRCP, and colleagues found that a substantial proportion of patients with cancer types that lacked hereditary testing guidelines harbored germline pathogenic/likely pathogenic variants. Study Details The study included data from...
Personalized ctDNA Testing and Late Recurrence in High-Risk HR-Positive, HER2-Negative Breast Cancer
In a study presented at the 2022 ASCO Annual Meeting (Abstract 103) and simultaneously reported in the Journal of Clinical Oncology, Lipsyc-Sharf et al found that personalized circulating tumor DNA (ctDNA) testing was successful in detecting measurable residual disease (MRD) prior to late clinical...
Differences in Germline Variant Spectrum Between Black and White Men With Prostate Cancer
In a study presented at the 2022 ASCO Annual Meeting (Abstract 10502) and simultaneously published in JCO Precision Oncology, Veda N. Giri, MD, and colleagues found that Black men with prostate cancer exhibited a lower frequency and narrower spectrum of germline pathogenic or likely pathogenic...
ASCO Refines Guidance on Using Biomarkers for Adjuvant Endocrine and Chemotherapy in Early-Stage Breast Cancer
A new ASCO guideline update provides further recommendations on the use of biomarkers to guide decision-making on adjuvant endocrine therapy and chemotherapy in patients with early-stage breast cancer.1 The update includes clarification of the use of certain genomic tests, based on age or...
Annual Meeting of the Moroccan Cancer Society: An Opportunity for Young Cancer Researchers to Evolve
The Moroccan Cancer Society (MCS; Société Marocaine de Cancérologie/https://smc.ma) was created in 1992 by a group of Moroccan medical and radiation oncologists, surgeons, and pathologists who had led the field in the 1980s. To date, this scientific society has more than 350 members practicing in...
Sue S. Yom, MD, PhD, on Oropharyngeal Cancer and the Feasibility of a Cell-Free DNA Plasma Assay
Sue S. Yom, MD, PhD, of the University of California, San Francisco, discusses a translational analysis from the NRG-HN002 study. This phase II trial established the feasibility of the tumor tissue–modified viral (TTMV) human papillomavirus DNA assay in clinical trial specimens. The goal is to use...
Michael J. Overman, MD, and Jeanne Tie, MBChB, MD, on Colon Cancer: Guiding Adjuvant Chemotherapy With ctDNA
Michael J. Overman, MD, of The University of Texas MD Anderson Cancer Center, and Jeanne Tie, MBChB, MD, of Peter MacCallum Cancer Centre, discuss results from the DYNAMIC trial, in which a circulating tumor DNA (ctDNA)-guided approach reduced the use of adjuvant chemotherapy without compromising...
Capecitabine Plus Temozolomide vs Temozolomide Alone in Advanced Pancreatic Neuroendocrine Tumors
In the updated final analysis of the phase II ECOG-ACRIN E2211 trial, patients with advanced pancreatic neuroendocrine tumors experienced a significant improvement in progression-free survival with capecitabine plus temozolomide over temozolomide alone.1 Although the 5-month difference in overall...
