Myriad Adds to Clinical Utility Data Backing Use of Melanoma Dx to Discern Malignant, Benign Lesions

The gist: Doctors sometimes perform molecular testing on patients’ tumors to identify certain characteristics that can inform treatment decisions. This article describes a molecular test called myPath Melanoma. It helps doctors determine is a patient’s skin lesion is malignant melanoma or benign. Recent research showed that myPath Melanoma helped doctors change their treatment decisions. In particular, many doctors opted for less intensive treatments for their patients based on myPath results.

Myriad Genetics this week presented data showing that its multi-gene myPath Melanoma test helped doctors change their treatment decisions, often lowering the intensity of the treatment strategy, for 35 percent of nearly 700 cases of pigmented skin lesions.

“Myriad presented the data, from a second clinical utility study for myPath Melanoma, at the College of American Pathologists’ annual meeting this week. The results of the prospective analysis aligned with findings from a retrospective clinical utility study presented earlier this year, which showed that doctors changed their decisions for 33 percent of cases using myPath Melanoma results.

“Myriad is marketing the 23-gene panel test, list priced at $1,500, as a tool that doctors can use to determine if a patient’s skin lesion is malignant melanoma or benign. Late last year the company provided early access to the test to dermatopathologists in the US through ‘The melEval Program.’ The test, according to Myriad, is one that pathologists can use to arrive at a more definitive diagnosis for suspicious, difficult-to-assess skin lesions. To date, approximately 120 dermatopathologists have submitted samples for testing with myPath through the early access program, according to the firm.

“In the latest prospective clinical utility study, 42 dermatopathologists answered questions about their treatment decisions for 687 cases of pigmented skin lesions, before and after performing the myPath Melanoma test. Myriad researchers asked these doctors to document their level of confidence about their diagnosis (is the skin lesion benign, malignant, or indeterminate) and their treatment recommendations before and after the test was performed.”