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Bladder Cancer

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ANAHEIM, California-In patients with superficial bladder cancer, it is possible to optimize treatment with mitomycin (Mutamycin) by enhancing the drug concentration in urine, according to the results of a multicenter study presented at the American Urological Association annual meeting (abstract 776).

BOSTON-A combination of transurethral resection (TUR) and radiochemotherapy with cisplatin (Platinol) and fluorouracil (5-FU) produced the most promising results in a German study of bladder-sparing protocols for patients with invasive bladder cancer.

CARPINTERIA, Calif-A newly available fluorescent-based immunocytologic test to detect superficial bladder cancer, ImmunoCyt, used in conjunction with urinary cytology, will likely reduce the need for periodic cystoscopies in patients with transitional cell bladder cancer and enhance the early detection of recurrent disease.

Researchers who conducted a large, randomized clinical trial across Europe, Great Britain, and Canada found that in order to improve safety and reduce toxicity, advanced bladder cancer patients can be treated with a combination of gemcitabine (Gemzar) and cisplatin (Platinol). This combination (known as GC) did not extend survival, but it was much less toxic than the currently used combination, MVAC (methotrexate, vinblastine, doxorubicin [Adriamycin], and cisplatin).

BALTIMORE-Physicians should consider using intravesical chemotherapy or immunotherapy as adjuvant therapy following surgery for non-muscle-invasive bladder cancer, according to new treatment guidelines released by the American Urological Association (AUA). “The fact that the peer-reviewed published data show that the use of intravesical agents after surgery lowers the probability of recurrence but not progression is the most important finding that we made,” panel chair Joseph A. Smith, Jr., MD, of the Vanderbilt University Medical Center, said in a news release.

CHICAGO-Despite recent excitement about therapy involving ifosfamide (Ifex) and other new chemotherapy drug combinations, MVAC-methotrexate, vinblastine, Adriamycin (doxorubicin), and cisplatin-remains the standard of care for advanced bladder cancer, Derek Raghavan, MD, said at the Chicago Prostate Cancer Shootout III Plus Bladder Conference, sponsored by the Chicago Urological Society, Chicago Radiological Society, and Chicago Medical Society

Often overshadowed by more common genitourinary cancers, such as prostate, testicular, and kidney cancers, penile and urethral cancers nonetheless represent difficult treatment challenges for the clinician. The management of these cancers is slowly evolving. In the past, surgery, often extensive, was the treatment of choice. Recently, however, radiation and chemotherapy have begun to play larger roles as initial therapies, with surgery being reserved for salvage. With these modalities in their treatment armamentarium, oncologists may now be able to spare patients some of the physical and psychological sequelae that often follow surgical intervention without compromising local control and survival. Part 1 of this two-part article, published in last month’s issue, dealt with cancer of the penis. This second part focuses on cancer of the urethra in both females and males. [ONCOLOGY 13(11):1511-1520, 1999]

CHICAGO-Systemic chemotherapy would seem to be a reasonable option to reduce the number of deaths from metastatic transitional cell bladder carcinoma. To date, however, systemic neoadjuvant chemotherapy has failed to show an effect on survival, and the jury is still out on the issue of chemotherapy following definitive therapy, said Derek Raghavan, MD, chief of medical oncology, University of Southern California Norris Cancer Center.

Superficial transitional cell carcinoma of the bladder comprises an extremely heterogeneous group of tumors, both in terms of morphology and, even more importantly, in terms of tumor biology and clinical behavior. Drs. deVere White and Stapp provide a succinct overview of the challenges encountered clinically because of tumor heterogeneity and the availability of different treatment options. The authors also outline the use of traditional prognostic factors (clinicopathologic characteristics) and the current state of development of biological markers that hold promise in providing significant clinically useful prognostic information.