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Study Finds Bladder Cancer Recurrence And Mortality Could Improve With Better Treatment Compliance

Researchers at UCLA’s led by Dr. , assistant professor-in-residence in the department of urology, have found that the burden of on the population is very high, and that more intense surveillance and treatment in the first two years after diagnosis could reduce the number of patients whose cancer returns after treatment and lower the death rate from this disease. The study was published online ahead of press today in the journal Cancer.

Based on their previous research showing underutilization of care for patients with bladder cancer, this is the first study to examine the natural history of the disease from a population standpoint. To date no one has examined the morbidity of recurrence of disease in the US. Chamie and colleagues found that nearly three quarters of patients with high-grade, non-muscle-invasive bladder cancer will suffer return of the disease (recurrence) within 10 years. Thirty-three percent of patients will have their cancers progress to a more advanced form requiring removal of their bladder, radiation therapy, or systemic chemotherapy. An additional 41% will recur without further spread of the disease (progression).

“Even though 80% of bladder cancer patients don’t die of their disease within 5 years, most patients will either die of other causes or bladder cancer, require aggressive treatment (removal of the bladder, radiation, and/or chemotherapy), or have recurrence of their disease. What this study hopes to do is highlight the need to comply with treatment guidelines–prevent recurrences by instilling anticancer agents inside the bladder (intravesical) and follow patients more closely within the first two years of diagnosis,” said Chamie.

The study was based on a nationwide sample of Medicare Beneficiaries who had high-grade, non-muscle-invasive bladder cancer. “We have level-one evidence that demonstrates that a single instillation of chemotherapy into the bladder can minimize recurrences, and that six instillations can minimize recurrence and progression,” Chamie stated further, “Efforts should be increased to offer patients intravesical therapy with the goal of minimizing the burden of this disease.”

The researchers also found that the elderly, women, and African-American patients had higher likelihood of dying of bladder cancer than younger patients, men, and whites, respectively.

This study was supported by the American Cancer Society, Ruth L. Kirschstein National Research Service Award Extramural, Jonsson Comprehensive Cancer Center, National Institutes of Health, and National Institute of Diabetes and Digestive and Kidney Diseases.

Source

Source: UCLA’s Jonsson Comprehensive Cancer Center