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A post hoc observational study from the phase III EORTC 62024 trial of adjuvant imatinib in patients with localized gastrointestinal stromal tumors (GIST) showed that improvement in survival with R0 vs R1 resection was no longer evident when tumor rupture was excluded from the R1 category. The...
In the Japanese phase II T-ACT study reported in the Journal of Clinical Oncology, Makiyama et al found no benefit of continued trastuzumab combined with paclitaxel after disease progression on first-line trastuzumab plus fluoropyrimidine/platinum chemotherapy in patients with HER2-positive...
In the phase III JAVELIN Gastric 100 trial, a strategy called “switch maintenance” with the immune checkpoint inhibitor avelumab after 12 weeks of first-line induction chemotherapy did not statistically improve overall survival for treatment-naive patients with HER2-negative advanced gastric or...
The analysis by Chao et al “highlights how well patients with MSI-H tumors do, compared to microsatellite-stable patients, and how much better they do in a randomized setting, being exposed to immunotherapy as compared to standard-of-care chemotherapy…The data also show that this is a...
The survival benefit of pembrolizumab in advanced gastric/gastroesophageal junction cancer with microsatellite instability–high (MSI-H) tumors or a combined positive score (CPS) ≥ 10 was established in post hoc subanalysis of three KEYNOTE trials. Findings were presented at the 2020...
This past January, the 2020 Gastrointestinal Cancers Symposium was held in San Francisco. More than 3,600 individuals attended and more than 900 abstracts and posters were presented. Among the highlights presented at the meeting and reported in the pages of The ASCO Post, several studies in...
Daniel V.T. Catenacci, MD, of the University of Chicago Medical Center and Biological Sciences, emphasized the value of the patient having microsatellite instability–high (MSI-H) status as a biomarker for immunotherapy. The analysis by Chao et al “highlights how well patients with MSI-H tumors do,...
Post hoc subanalyses of three KEYNOTE trials established the survival benefit of pembrolizumab in advanced gastric/gastroesophageal junction cancer with microsatellite instability–high (MSI-H) tumors or a programmed cell death ligand 1 (PD-L1) combined positive score (CPS) ≥ 10 (ie, the number of...
On January 9, 2020, avapritinib was approved for treatment of adults with unresectable or metastatic gastrointestinal stromal tumors (GIST) harboring a platelet-derived growth factor receptor alpha (PDGFRA) exon 18 mutation, including D842V mutations.1,2 It is the first therapy approved for...
Daniel V.T. Catenacci, MD, Associate Professor of Medicine and Director of the Gastrointestinal Oncology Program at the University of Chicago, was the JAVELIN Gastric 100 study’s invited discussant. After offering an extensive background on the use of immunotherapy in gastric or gastroesophageal...
In the phase III JAVELIN Gastric 100 trial, a strategy called “switch maintenance” with the immune checkpoint inhibitor avelumab after 12 weeks of first-line induction chemotherapy did not statistically improve overall survival for treatment-naive patients with HER2-negative advanced gastric or...
George A. Fisher, Jr, MD, PhD, the Colleen Haas Chair in Medicine-Oncology at Stanford University School of Medicine, commented on the cell-free DNA methylation blood-based test from the Circulating Cell-Free Genome Atlas (CCGA) study. The findings presented by Dr. Wolpin, he said, “lead us to the ...
A noninvasive, blood-based, cell-free DNA test focused on the presence of DNA methylation appears to be highly sensitive in detecting gastrointestinal cancers and may pinpoint the tissue of origin in the vast majority of these cancers.1 The assay was developed based on findings from the...
This week, the U.S. Food and Drug Administration (FDA) granted Priority Review to treatments for non–small cell and small cell lung cancers, as well as for diffuse large-B cell lymphoma (DLBCL); Breakthrough Therapy designation to an antibody-drug conjugate for bladder cancer; and a double Fast...
This week, the U.S. Food and Drug Administration (FDA) granted Priority Review to agents in lymphoma, lung cancer, gastrointestinal stromal tumors, and breast cancer, and granted Fast Track designation to a first-in-class radioenhancer hafnium oxide nanoparticle in head and neck cancer. Priority...
In a large Korean single-center study reported in The New England Journal of Medicine, Choi et al found that eradication of Helicobacter pylori infection was associated with a reduced risk of gastric cancer in individuals with a family history of gastric cancer in first-degree relatives. As stated ...
Brian M. Wolpin, MD, of Dana-Farber Cancer Institute, discusses a noninvasive blood test evaluating methylation of circulating free DNA. In his study, the blood test detected multiple gastrointestinal cancers at a sensitivity of approximately 81% and a prespecified specificity of > 99%. It also accurately localized the tissue of origin across more than 20 cancer types (Abstract 283).
Zev A. Wainberg, MD, of the UCLA Medical Center, discusses the first subset analysis of how a combined positive score in gastric and gastroesophageal junction cancers related to the efficacy of pembrolizumab in PD-L1–positive disease (Abstract 427).
Patients with metastatic esophageal cancer who declined chemotherapy but received palliative care had a numerically higher, but not statistically significant, difference in overall survival. These findings will be presented by Manguso et al at the 2020 Gastrointestinal Cancers Symposium (Abstract...
Cancer was a disease I feared until 3 years ago, when I was diagnosed with gastric cancer. After receiving the diagnosis, I knew I didn’t have any time to indulge in fear; I had to take action if I was going to survive. In hindsight, symptoms of the cancer, including some fatigue and indigestion,...
A blood-based screening test using cell-free DNA to identify methylation signals of hard-to-detect gastrointestinal (GI) cancers could potentially help detect disease at earlier stages. This research will be presented by Brian M. Wolpin, MD, MPH, and colleagues at the 2020 Gastrointestinal Cancers...
On January 9, the U.S. Food and Drug Administration (FDA) approved avapritinib (Ayvakit) for the treatment of adults with unresectable or metastatic gastrointestinal stromal tumor (GIST) that harbors platelet-derived growth factor receptor alpha (PDGFRA) exon 18 mutation. This approval includes...
Although pancreatic cancer survival rates have slowly improved over the past few decades for all stages of pancreatic cancer combined, the 1-year rate is 20%, and the 5-year rate is about 9%. There is no single diagnostic test to detect pancreatic cancer, and less than 20% of tumors are confined to ...
Combination therapy with the programmed cell death ligand 1 inhibitor atezolizumab and the vascular endothelial growth factor inhibitor bevacizumab significantly improved overall and progression-free survival in patients with unresectable hepatocellular carcinoma compared with sorafenib, according...
Over the past few weeks, the U.S. Food and Drug Administration (FDA) granted reviews or designations to treatments for gastrointestinal cancers and lymphoma, and also provided authorizations for products designed to screen for malignancies and tumor mutational burden. Priority Review for Nivolumab...
Early in 2019, trifluridine/tipiracil tablets were approved for the treatment of adult patients with metastatic gastric or gastroesophageal junction adenocarcinoma previously treated with at least two prior lines of chemotherapy that included a fluoropyrimidine; a platinum; either a taxane or...
In a late-breaking, oral presentation at the European Society for Medical Oncology (ESMO) 2019 Congress, Margaret von Mehren, MD, presented results from INVICTUS, a pivotal phase III clinical study of ripretinib in patients with advanced gastrointestinal stromal tumor (GIST).1 Ripretinib is an...
Circulating tumor DNA in the blood could serve as a marker of prognosis in patients with colon cancer receiving adjuvant oxaliplatin, according to a subanalysis of the IDEA trial, presented at the European Society for Medical Oncology (ESMO) Congress 2019.1 After 2 years of adjuvant...
Immune-related colitis is the second most common toxicity associated with checkpoint inhibitors, affecting up to 40% of patients. The ASCO Post interviewed Yinghong Wang, MD, PhD, Director of Medication-Induced Colitis and Enteritis, Director of Fecal Microbiota Transplantation, and Associate...
In a late-breaking, oral presentation at the ESMO Congress 2019, Margaret von Mehren, MD, presented results from INVICTUS, a pivotal phase III clinical trial of ripretinib in patients with advanced gastrointestinal stromal tumor (GIST).1 Ripretinib is an investigational tyrosine kinase inhibitor...
Unplanned hospitalizations may be common among patients with cancer, but they diminish quality of care while racking up high costs for patients and the health-care system alike. According to data presented at the 2019 ASCO Quality Care Symposium, however, a new predictive model may help providers...
In a subgroup analysis of the phase III TAGS trial (TAS-102 Gastric Study) reported in JAMA Oncology, David H. Ilson, MD, PhD, and colleagues found positive trends in survival benefit with trifluridine/tipiracil treatment vs placebo for patients with pretreated metastatic gastric cancer or...
In an individual patient data meta-analysis reported in the Journal of Clinical Oncology, Pietrantonio et al found that microsatellite instability (MSI) status was a strong prognostic marker in patients with resectable gastric cancer. The study involved data from 1,556 patients with resectable...
THE NATIONAL COMPREHENSIVE Cancer Network® (NCCN®) recently announced the publication of a new set of recommendations focused on cancers in the small intestine. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) for Small Bowel Adenocarcinoma are the first treatment guidelines in...
Recently, the U.S. Food and Drug Administration granted Breakthrough Therapy designation to acalabrutinib in chronic lymphocytic leukemia (CLL), accepted a new drug application for avapritinib in some types of gastrointestinal stromal tumors (GIST), and granted 501(k) clearance to market the...
The 2019 ASCO Annual Meeting provided attendees with an abundance of clinically relevant abstracts in gastrointestinal cancers. Briefly featured here are clinical trial updates on pembrolizumab in the second-line treatment of hepatocellular carcinoma (KEYNOTE-240 trial), laparoscopic vs open...
Results from a phase IB trial expansion stage reported in The Lancet Oncology by Herbst et al showed the combination of ramucirumab plus pembrolizumab had manageable toxicity and antitumor activity in previously treated advanced gastroesophageal cancer, non–small cell lung cancer (NSCLC), and ...
On June 14, the U.S. Food and Drug Administration (FDA) approved trastuzumab-anns (Kanjinti) for all approved indications of the reference product trastuzumab (Herceptin): for the treatment of HER2-overexpressing breast cancer and HER2-overexpressing metastatic gastric or gastroesophageal junction...
In the Clinic provides overviews of novel hematology and oncology agents, addressing indications, mechanisms of action, administration recommendations, safety profiles, and other essential information needed for the appropriate clinical use of these drugs. On February 22, trifluridine/tipiracil...
The incidence of gastric cancer has been increasing in younger individuals, and those under 40 with chronic digestive symptoms should be more actively investigated. These findings follow new data from a retrospective, observational study in Mexico, which showed that 1 in 7 of over 2,000...
Pazopanib significantly improved progression-free survival by 47% in patients with progressive carcinoid tumors, in a prospective randomized phase II trial presented at the 2019 ASCO Annual Meeting.1 “With these results, Alliance A021202 becomes the first randomized study to show that the vascular...
For patients with operable colon cancer, neoadjuvant chemotherapy resulted in numerous benefits in the FOxTROT trial but did not reach target significance for the primary endpoint. The study was presented at the 2019 ASCO Annual Meeting by Matthew T. Seymour, MD, of the University of Leeds School...
IAN CHAU, MD, a consultant medical oncologist at the Gastrointestinal and Lymphoma Units of The Royal Marsden NHS Foundation Trust in London and Surrey, United Kingdom, was the invited discussant of KEYNOTE-062. In an interview with The ASCO Post, he first commented that although single-agent...
KEYNOTE-062, a study of first-line treatment in patients with advanced gastric or gastroesophageal junction adenocarcinoma, found pembrolizumab to be noninferior to chemotherapy and perhaps better than chemotherapy in a subgroup of patients. The results were reported at the 2019 ASCO Annual Meeting ...
Today, the U.S. Food and Drug Administration (FDA) approved trastuzumab-anns (Kanjinti) for all approved indications of the reference product trastuzumab (Herceptin): for the treatment of HER2-overexpressing breast cancer and HER2-overexpressing metastatic gastric or gastroesophageal...
In a propensity score analysis reported in the Journal of Clinical Oncology, Bonnot et al found that the addition of hyperthermic intraperitoneal chemotherapy (HIPEC) to cytoreductive surgery improved outcomes among patients with gastric cancer with peritoneal metastases. The study included 277...
Josep Tabernero, MD, PhD, of the Vall d’Hebron Institute of Oncology, discusses phase III findings of the KEYNOTE-062 study showing that, for some patients with advanced gastric or gastroesophageal junction cancer, pembrolizumab may improve survival and may be an effective alternative to chemotherapy, with fewer side effects (Abstract LBA4007).
The randomized, phase III KEYNOTE-062 trial achieved its primary endpoint, showing that for patients with programmed cell death ligand 1 (PD-L1)-positive, HER2-negative, advanced gastric or gastroesophageal junction (GEJ) cancer, initial therapy with pembrolizumab resulted in noninferior overall...
A large randomized trial has found that frail and elderly patients with advanced gastroesophageal cancer may be safely and successfully treated with dose-reduced chemotherapy. In the GO2 phase III trial, low doses of oxaliplatin/capecitabine performed similarly to intermediate and high doses of the ...
Two phase I studies reported in The Lancet Oncology indicate activity of the antibody-drug conjugate trastuzumab deruxtecan in advanced HER2-positive gastric cancer and advanced HER2-positive breast cancer previously treated with trastuzumab emtansine (T-DM1). Trastuzumab deruxtecan (DS-8201a) is a ...