miércoles, 17 de agosto de 2016
Cancer Currents Blog: CA-125 Testing, CT Scans Still Used for Ovarian Cancer Surveillance Despite Lack of Proven - National Cancer Institute
Tests without Proven Benefit Still Used for Ovarian Cancer Surveillance - National Cancer Institute
Despite evidence of no benefit from a 2009 randomized clinical trial, a new study shows that doctors appear to still routinely use the CA-125 blood test to monitor women for recurrentovarian cancer. The findings, published July 21 in JAMA Oncology, also suggest thatcomputed tomography (CT) scans continue to be routinely used to check for recurrences even though clinical practice guidelines discourage this practice. Many women who are in remission after treatment for ovarian cancer will eventually have a recurrence of the disease. One approach doctors have used to monitor patients for a recurrence and make decisions about care is regular blood testing to look for a rise in levels of CA-125, a protein that may be found in high amounts in women with ovarian cancer. However, results of a randomized, phase III clinical trial reported at a national conference in 2009 and published in 2010 showed that CA-125 testing for early detection of recurrent disease increased the use of chemotherapy and decreased patients’ quality of life without improving overall survival.