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The Cancer Letter Inc.
PO Box 9905
Washington
DC 20016
Tel: 202-362-1809
Fax: 202-379-1787
publication date: Jun 3, 2016
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Drugs and Targets

FDA Approves Cobas
EGFR Companion Test for Tarceva 

 

FDA approved the cobas EGFR Mutation Test v2, a blood-based companion diagnostic for the cancer drug Tarceva (erlotinib). This is the first FDA-approved, blood-based genetic test that can detect epidermal growth factor receptor gene mutations in non-small cell lung cancer patients.

With the cobas test, the presence of specific NSCLC mutations [exon 19 deletion or exon 21 (L858R) substitution mutations] detected in patients’ blood samples aids in selecting those who may benefit from treatment with Tarceva. However, if such mutations are not detected in the blood, then a tumor biopsy should be performed to determine if the NSCLC mutations are present. Insofar as the test provides positive results, it may benefit patients who may be too ill or are otherwise unable to provide a tumor specimen for EGFR testing, according to FDA.



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