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Showing 201 - 216Targeted Next-Generation Sequencing Reveals a High Number of Genomic Mutations in Advanced Malignant Plural Mesothelioma
Next-generation sequencing in malignant pleural mesothelioma tumors shows a complex mutational setting with a high number of genetic alterations in genes involved in DNA repair, cell survival, and cell proliferation pathways, according to a study by Lo Iacono et al in the Journal of Thoracic...
CLEOPATRA Analysis Shows That HER2 Is Sole Marker Suitable for Selection of Pertuzumab/Trastuzumab-Based Treatment in Metastatic Breast Cancer
In an analysis in the CLEOPATRA trial population reported in the Journal of Clinical Oncology, Baselga et al found that HER2 was the only biomarker suitable for use in selecting patients for first-line pertuzumab (Perjeta)/trastuzumab (Herceptin)-based treatment in patients with HER2-positive...
mTOR Inhibitor Ridaforolimus Shows Activity in Advanced Endometrial Cancer
The oral mTOR inhibitor ridaforolimus was modestly active and reasonably tolerated in women with recurrent or metastatic endometrial cancer, according to the results of a phase II study reported in Gynecologic Oncology. Tsoref et al suggested that it may prove to be an effective therapeutic...
PIK3CA Mutation Does Not Predict Outcome in Patients With Luminal Breast Cancer Receiving Endocrine Therapy
In a study reported in the Journal of Clinical Oncology, Sabine et al found that PIK3CA mutation was not an independent predictor of distant relapse-free survival among postmenopausal women with estrogen receptor–positive breast cancer receiving endocrine therapy in the TEAM (Exemestane...
Adding Everolimus to Trastuzumab/Vinorelbine Prolongs Progression-Free Survival but Increases Toxicity in Trastuzumab-Resistant Advanced Breast Cancer
Disease progression in HER2-positive breast cancer treated with trastuzumab (Herceptin) may be associated with PI3K/Akt/mTOR pathway activation, and use of an mTOR inhibitor might restore trastuzumab sensitivity. In the double-blind phase III BOLERO-3 trial reported in The Lancet Oncology,...
Experimental Drug Shows Promise for Treatment-Resistant Leukemia
Research in mice and human cell lines has identified an experimental compound dubbed TTT-3002 as potentially one of the most potent drugs available to block genetic mutations in cancer cells blamed for some forms of treatment-resistant leukemia. The study by Ma et al, published in Blood, found that ...
Findings With Comparative Genomic Hybridization Array and DNA Sequencing Indicate Feasibility of Personalized Treatment for Metastatic Breast Cancer
In the SAFIR01/UNICANCER study reported in The Lancet Oncology, André et al used comparative genomic hybridization and Sanger sequencing on metastatic breast cancer biopsy samples to determine the proportion of cases in which targeted therapy could be offered. They found that screening...
Bladder Cancer Study Uncovers Potential Drug Targets and Molecular Similarities to Other Cancers
Investigators with The Cancer Genome Atlas Research Network have identified new potential therapeutic targets for urothelial carcinoma of the bladder, a common cancer that causes about 150,000 deaths worldwide each year. The researchers also found molecular similarities to some subtypes of breast,...
PIK3CA Mutations Predictive of Resistance to Neoadjuvant Therapy in HER2/HR-Positive Breast Cancers
Women with HER2-positive, hormone receptor-positive breast cancer with mutations in the PI3K/AKT pathway may respond poorly to neoadjuvant therapy, German researchers reported at the 2013 San Antonio Breast Cancer Symposium (Abstract S4-06). “We found that very few women with HER2-positive...
New Studies Provide Insight Into Melanoma Drug Resistance Pathways and Strategy for Obtaining Durable Responses
Approximately 50% of metastatic melanomas harbor the BRAF mutation, and although most of these melanomas respond dramatically to treatment with BRAF inhibitors, such as vemurafenib (Zelboraf) and dabrafenib (Tafinlar), nearly all develop resistance to the drugs within 7 to 8 months. While previous...
Novel Oncogenetic Classifier Identifies Low- and High-Risk Patients With Adult T-Cell Acute Lymphoblastic Leukemia
The Group for Research in Adult Acute Lymphoblastic Leukemia (GRAALL) recently reported significantly better outcome in T-cell acute lymphoblastic leukemia (ALL) harboring NOTCH1 or FBXW7 (N/F) mutations, although relapse was still observed in one-third of patients with N/F-mutated T-cell ALL. In a ...
Novel Drug Combinations Targeting Pathways Triggered by KRAS May Benefit Patients With Pancreatic Cancer
Two drug combinations that simultaneously block two major signaling pathways downstream of the protein KRAS, which is aberrantly active in most pancreatic cancers, may provide a new treatment option for patients with this disease, according to preclinical results presented at the AACR-NCI-EORTC...
Targeting Integrin β3-Src Pathway May Be Potential Strategy for Overcoming Anti-IGF-1R Antibody Resistance
Clinical trials have shown limited efficacy of anti–insulin-like growth factor 1 receptor (IGF-1R) monoclonal antibodies, with the mechanisms of resistance to IGF-1R monoclonal antibody-based therapy remaining undefined. In preclinical studies reported in the Journal of the National...
Researchers Identify Key Protein in Treatment-Resistant Prostate Cancer
Prostate cancer is one of the most common forms of cancer in men and the leading cause of cancer deaths in white, African American, and Hispanic men, according to the Centers for Disease Control. However, it remains unclear why, despite treatment, some prostate cancers progress and may become...
Progression of Renal Cell Carcinoma Linked to Shifts in Tumor Metabolism
Investigators in The Cancer Genome Atlas (TCGA) Research Network have uncovered a connection between how tumor cells use energy from metabolic processes and the aggressiveness of the most common form of kidney cancer, clear cell renal cell carcinoma. Their findings demonstrate that normal...
Experimental Drug Combination Selectively Destroys Lymphoma Cells
Laboratory experiments conducted by researchers at Virginia Commonwealth University Massey Cancer Center suggest that a novel combination of the investigational agent ibrutinib and bortezomib (Velcade) could potentially be an effective new therapy for several forms of blood cancer, including...
