Volume 22, Issue 1, January 2017
Editorial
Let This Be Our New Year’s Pledge
Academia-Pharma Intersect
Lung Cancer
Understanding Mechanisms of Resistance in the Epithelial Growth Factor Receptor in Non‐Small Cell Lung Cancer and the Role of Biopsy at Progression
Until recently, options were limited for patients with non‐small cell lung cancer who progressed while receiving epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs), but improvements in molecular profiling and the approval of osimertinib afford the opportunity for improved outcomes in many patients with the EGFR T790M mutation. This article explains the options available after progression on initial EGFR TKI therapy and the importance of molecular testing at progression in making treatment decisions.
Breast Cancer
Enhancing Endocrine Therapy Combination Strategies for the Treatment of Postmenopausal HR+/HER2– Advanced Breast Cancer
Evidence supports use of first‐line dual endocrine therapy (ET) regimens, particularly in ET‐naïve patients, or palbociclib plus letrozole, as well as everolimus plus exemestane or palbociclib plus fulvestrant as second‐line therapy for HR‐positive, HER2‐negative advanced breast cancer. Some combinations are associated with increased risk of class‐specific toxicities.
Phase II and Biomarker Study of Cabozantinib in Metastatic Triple‐Negative Breast Cancer Patients
This study evaluates the safety, efficacy, and biomarkers of response to cabozantinib, a multikinase inhibitor, in patients with metastatic triple‐negative breast cancer (mTNBC). Cabozantinib showed encouraging safety and efficacy signals but did not meet the prespecified primary endpoint in pretreated mTNBC. Exploratory analyses of circulating biomarkers showed that cabozantinib induces systemic changes consistent with activation of the immune system and antiangiogenic activity, and soluble MET should be further evaluated as a potential biomarker of response.
Cancer Diagnostics and Molecular Pathology
Implementation of a Multicenter Biobanking Collaboration for Next‐Generation Sequencing‐Based Biomarker Discovery Based on Fresh Frozen Pretreatment Tumor Tissue Biopsies
Here are described the first 469 image‐guided biopsies collected in a large collaboration in The Netherlands (Center for Personalized Cancer Treatment).The utility of these specimens for next‐generation sequencing analysis is shown, revealing that image‐guided biopsy procedures for biomarker discovery to enable personalized cancer treatment are safe and feasible and yield a highly valuable biobank.
The Challenges of Validating in Precision Medicine: The Case of Excision Repair Cross‐Complement Group 1 Diagnostic Testing
Research activities for a biomarker that has been in development for at least 12 years—excision repair cross‐complement group 1 protein, as a biomarker for predicting clinical benefit with platinum‐based chemotherapy in non‐small cell lung cancer—were systematically mapped.
Gastrointestinal Cancer
Does a Higher Cutoff Value of Lymph Node Retrieval Substantially Improve Survival in Patients With Advanced Gastric Cancer?—Time to Embrace a New Digit
The present study assessed the impact of >25 lymph node retrieval on the survival outcome of patients with advanced gastric cancer after curative‐intent gastrectomy. The clinicopathological parameters and overall survival were analyzed according to the number of lymph nodes examined. Retrieving more than 25 lymph nodes during curative‐intent gastrectomy substantially improved survival and survival stratification of advanced gastric cancer without compromising patient safety.
A Study of Thymidylate Synthase Expression as a Biomarker for Resectable Colon Cancer: Alliance (Cancer and Leukemia Group B) 9581 and 89803
Tumor thymidylate synthase (TS) levels were prospectively evaluated in two adjuvant therapy trials for patients with resected stage II or III colon cancer. Results indicated that high tumor TS levels were associated with improved disease‐free survival and overall survival following adjuvant therapy for colon cancer, although tumor TS expression did not predict benefit of 5‐fluorouracil‐based chemotherapy.
Genitourinary Cancer
Sunitinib: Ten Years of Successful Clinical Use and Study in Advanced Renal Cell Carcinoma
The key data for sunitinib establishing it as a reference standard of care for first‐line advanced renal cell carcinoma (RCC) and significantly altering the treatment landscape are discussed. The key insights regarding study design and data interpretation and how these findings and the sunitinib development program can be a model for successful development of other agents are explored. The ongoing research of sunitinib in RCC management is also discussed.
Global Health and Cancer
Chemotherapy Near the End of Life for Chinese Patients with Solid Malignancies
The prevalence of chemotherapy use toward the end of life (EOL) for patients with solid cancers was studied in China. Correlations among EOL chemotherapy, clinicopathological features, and overall survival (OS) were investigated. EOL chemotherapy was associated with reduced OS, more aggressive care measures, and higher in‐hospital death rates. Oral anticancer agents were associated with fewer intensive care‐unit admissions and lower in‐hospital death rates than intravenous therapy.
Mixed Responses to Systemic Therapy Revealed Potential Genetic Heterogeneity and Poor Survival in Patients with Non‐Small Cell Lung Cancer
The occurrence and prognostic significance of mixed responses to systemic therapies among patients with non‐small cell lung cancer were evaluated by positron emission tomography/computed tomography scans (PET/CT) to provide comprehensive measurements of each lesion. Clinical biomarkers were explored to identify potential molecular mechanisms resulting in mixed response. The results of this study may help us to understand the clinical and molecular features of mixed response and provide a foundation to explore subsequent therapeutic strategies.
Lung Cancer
Monitoring and Management of Immune‐Related Adverse Events Associated With Programmed Cell Death Protein‐1 Axis Inhibitors in Lung Cancer
This review summarizes the required monitoring and appropriate management of immune‐related adverse events in lung cancer patients receiving nivolumab and pembrolizumab.
Immune Checkpoint Inhibitors in Non‐Small Cell Lung Cancer
Immune checkpoint inhibitors have emerged as promising therapeutic agents in non‐small cell lung cancer (NSCLC). Programmed cell death protein‐1/programmed cell death ligand‐1 inhibitors have produced significant improvements in overall survival compared with single‐agent docetaxel, effectively establishing a new standard of care in NSCLC. An overview of the rationale for checkpoint inhibitors in lung cancer, recent clinical trial data, and the need for predictive biomarkers is provided.
Symptom Management and Supportive Care
The Impact of an Educational Program on Patient Practices for Safe Use, Storage, and Disposal of Opioids at a Comprehensive Cancer Center
Improper use, storage, and disposal of prescribed opioids can lead to diversion or accidental poisoning. The present study compared 300 adult cancer outpatients receiving opioids who had also received educational material (EM) with 300 patients who had not received EM. The use of EM on opioid safety for patients with advanced cancer was associated with improved patient‐reported safe opioid use, storage, and disposal.