Agendia's MammaPrint(R), The Only FDA Cleared Breast Cancer Prognosis Test, Is Now Widely Available To U.S. Patients
Main Category: Breast CancerAlso Included In: Regulatory Affairs / Drug Approvals; Genetics; IT / Internet / E-mail
Article Date: 13 Dec 2007 - 0:00 PDT
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Agendia makes its breast cancer prognosis test, MammaPrint(R), available to U.S. patients after receiving two clearances from the Food and Drug Administration (FDA) for its test. The first clearance in February of this year cleared MammaPrint(R) as an In Vitro Diagnostic Multivariate Index Assay (IVDMIA) for use in breast cancer prognosis. In June of this year, Agendia received a second clearance for the test in conjunction with RNARetain(R), an RNA stabilizing solution allowing shipping of tumor biopsies at ambient temperature, greatly facilitating the logistical process of sample handling.
"We are very pleased to make MammaPrint widely available to U.S. patients and their physicians," said Bernhard Sixt, chief executive officer and co-founder of Agendia. "We believe it will play an important role in patients' course of treatment, and Agendia is seriously committed to educating the marketplace about the superior aspects of this diagnostic tool, which has broader indications and clearer results over other available options."
Dr. Neal S. Goldstein, MD, Director, Molecular Oncology and Advanced Diagnostics Laboratory of William Beaumont Hospital in Royal Oaks, Michigan says, "I prefer MammaPrint(R) because it is applicable for both ER positive and ER negative breast cancers as there is no standard determining the ER status. In addition, MammaPrint(R) encompasses many genes and, as cancers are complex, the clinical utility of assays using smaller numbers of genes is dubious in my opinion."
Agendia's Chief Operating Officer Dr. Jan Groen says, "The University of California at San Francisco (UCSF) Medical Center at Mount Zion and the Dan L. Duncan Cancer Center at Baylor College of Medicine in Houston, Texas were the first two reference centers in the U.S. to offer the test to patients. We expect to announce additional centers by the end of the year."
About MammaPrint(R)
MammaPrint(R) is a DNA micro array-based in vitro diagnostic laboratory service that measures the activity of 70 genes, providing information about the likelihood of tumor recurrence. The MammaPrint(R) test measures the level of expression of each of these genes in a sample of a woman's surgically-removed breast cancer tumor and then uses a specific formula or algorithm to produce a score that determines whether the patient is deemed low risk or high risk for spread of the cancer to a distant site (metastasis). The result may help a doctor in planning appropriate follow-up for a patient when used with other clinical and pathological information.
About Agendia
Agendia, located in Amsterdam, The Netherlands, is a world leader in gene expression analysis-based diagnostics with three products on the market. The company focuses on the development and commercialization of diagnostic tests using tumor gene expression profiling. Agendia was the first company to commercialize a prognostic test -- MammaPrint(R) -- that predicts the risk of breast cancer recurrence. Agendia maintains close ties with several leading academic centers to develop state of the art diagnostic tests for cancer. Agendia also offers its expertise to pharma companies focusing on development of highly effective personalized drugs in the area of oncology. For more information on Agendia, visit http://www.agendia.com.
RNARetain(R) is a trademark of Asuragen Inc.
Agendia
http://www.agendia.com
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MammaPrint: Molecular-targeted Breast Prognostic Test
posted by Gregory D. Pawelski on 13 Dec 2007 at 7:42 pmThe genetic analysis of MammaPrint predicts which women will have a greater chance of breast cancer reucrrence, information that could save many patients from unnecessary chemotherapy. This test looks at the expression of 70 genes linked to breast cancer with an accuracy level of 96.7% as determined by a study published in the New England Journal of Medicine.
The correlations of this are vastly superior to those obtained with standard prognostic markers. The 70 genes in a woman's tumor analyzed by MammaPrint predict the 10-year survival of the patient at a significance level over three times greater than existing methods. Existing methods can't distinguish the patients with a high risk for recurrence from those with low risk with camparable accuracy.
These new gene expression profiling tests enable the oncologist and breast cancer surgeon to more accurately determine who should be treated and who should not be treated with chemotherapy, but they cannot predict chemo response.
These laboratory tests are a tool for the oncologist. The oncologist should take advantage of all the tools available to him/her to treat a patient. And since studies show that only 25-30% of patients do respond to chemotherapy that is available to them (and even less for "targeted" drugs), there should be due consideration to looking at the advantage of molecular and cellular assay tests to the resistance that has been found to chemotherapy drugs.
These tests can enhance the ability to distinguish between "low" risk and "high" risk patients. Patients in the high-risk group, who would benefit from chemotherapy can then be pre-tested with a "functional" bio-marker to see what treatments have the best opportunity of being successful, and offers a better chance of tumor response resulting in progression-free survival, while those in the lower-risk groups can be spared the unnecessary toxicity, particularly associated with ineffective treatment.
These new genetic tests have enormous implications for the short-term future of cancer research in general, and is one of the truly great cancer breakthroughs of our time. These DNA microarray will prove to be highly complementary to the parellel breakthrough efforts in targeted therapy through a cell-based assay using an EGFRx™ Anti-Tyrosine Kinase Profile.
New anti-cancer drugs selectively "targets" cells within the body that have a specific molecular defect that is believed to cause dangerous cell behaviors such as uncontrolled proliferative growth and high metastatic potential, behaviors that are associated with aggressive cancer. The defect occurs within the interior of the cell in a region that is called the tyrosine kinase domain and it involves a complicated chemical process called EGFR signaling.
The drugs are called anti-EGFR drugs or tyrosine kinase inhibitors. When the drugs work, they can be highly beneficial, causing tumor shrinkage or promoting stable disease and extending survival. However, targeted therapy drugs like tyrosine kinase inhibitors only work for a small percentage of the patients who receive them. Further, the drugs are expensive and have been associated with toxic side effects. No molecular (gene-based) test has been proven to tell reliably who will benefit from anti-EGFR treatment.
The EGFRx™ Anti-Tyrosine Kinase Profile assay can prospectively report to a physician specifically which chemotherapy agent would benefit a high risk cancer patient by testing that patient's "live" cancer cells. Drug sensitivity profiles differ significantly among cancer patients even when diagnosed with the same cancer. Knowing the drug sensitivity profile of a specific cancer patient allows the treating oncologists to prescribe chemotherapy that will be the most effective against the tumor cells of that patient.
Every breast cancer patient should have her own unique chemotherapy trial based on consultation of pathogenic profiles and drug sensitivity testing data. Research and application of these tests are being encouraged by growing patient demands, scientific advances and medical ethics. These tests are not a luxury but an absolute necessity, and a powerful strategy that cannot be overlooked.
Literature Citation: Eur J Clin Invest 37 (suppl. 1):60, 2007
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