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CA-125 change over time shows promise as screening tool for early detection of ovarian cancer
Date:8/25/2013

Lu, is that the four invasive ovarian cancers detected were high-grade epithelial tumors, the most aggressive form of the disease, and were caught early (stage IC or IIB), when the disease is not only treatable, but most often curable. Lu also noted that all four women found to have invasive disease were monitored at low risk for three years or more prior to a rising CA-125.

"CA-125 is shed by only 80 percent of ovarian cancers," explained Bast, the study's senior author. "At present, we are planning a second trial that will evaluate a panel with four blood tests including CA-125 to detect the cancers we may otherwise miss with CA-125 alone. The current strategy is not perfect, but it appears to be a promising first step."

While encouraging, the findings are neither definitive, nor immediately practice-changing, stressed Lu; who also said a large, randomized prospective screening trial still needs to be conducted. Such research is ongoing in the United Kingdom; results from more than 200,000 women should be known by 2015.

"As a clinician treating women with this disease for more than ten years, I've become an admitted skeptic of ovarian cancer screening. Now, with these findings, I'm cautiously optimistic that in the not too distant future, we may be able to offer a screening method that can detect the disease in its earliest, curable stages and make a difference in the lives of women with this now-devastating disease."

The study is continuing; and, as follow-up, Lu and her team plan to look at combining other markers with CA-125 to determine the screening impact of their combined change over time.


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Contact: Laura Sussman
lsussman@mdanderson.org
713-745-2457
University of Texas M. D. Anderson Cancer Center
Source:Eurekalert

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