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FDA Approves Test to Help Detect Ovarian Cancer

ROCKVILLE, Md -- September 12, 2009 -- The US Food and Drug Administration today cleared a test that can help detect ovarian cancer in a pelvic mass that is already known to require surgery. The test, called OVA1, helps patients and healthcare professionals decide what type of surgery should be done and by whom.

OVA1 identifies some women who will benefit from referral to a gynecological oncologist for their surgery, despite negative results from other clinical and radiographic tests for ovarian cancer. If other test results suggest cancer, referral to an oncologist is appropriate even with a negative OVA1 result.

OVA1 should be used by primary care physicians or gynecologists as an adjunctive test to complement, not replace, other diagnostic and clinical procedures.

OVA1 uses a blood sample to test for levels of 5 proteins that change due to ovarian cancer. The test combines the 5 separate results into a single numerical score between 0 and 10 to indicate the likelihood that the pelvic mass is benign or malignant.

OVA1 is intended only for women aged 18 years and older, who are already selected for surgery because of their pelvic mass. It is not intended for ovarian cancer screening or for a definitive diagnosis of ovarian cancer. Interpreting the test result requires knowledge of whether the woman is pre- or post-menopausal.

The American College of Obstetricians and Gynecologists and the Society of Gynecologic Oncologists published recommendations in 2002 for the role of generalist obstetrician-gynecologists in the early detection of ovarian cancer, which included a recommendation of patient referral to a gynecological oncologist when specific indicators of malignancy are present.

These recommendations and later reports indicate that patients with ovarian cancer have improved survival when the surgery is performed by gynecologic oncologists as opposed to general gynecologists or surgeons.

The FDA reviewed a study of 516 patients, including 269 evaluated by non-gynecological oncologists, which compared OVA1 results with biopsy results. When combined with pre-surgical information, such as radiography and other laboratory tests, results from the OVA1 tests identified additional patients who might benefit from oncology referral who were not identified using pre-surgical information alone.

SOURCE: US Food and Drug Administration

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