![]() |
||
![]() | ||
Printer Friendly
|
BCG Recommendations, 2005Many studies, now including meta-analysis, show that BCG intravesical therapy provides superior protection from tumor recurrence, and with maintenance schedules reduces disease progression. No other intravesical treatment has achieved these results. Despite this good news there remain patients who fail to respond to BCG therapy. Here are my current recommendations for optimal BCG therapy and management of BCG failure patients. Patient Selection: While BCG is effective in low grade, Ta tumors, these patients are at low risk of disease progression. Chemotherapy is more effective in low grade than high grade tumors. Immediate postoperative chemotherapy reduces tumor recurrence by about 20% and in my double blind study Oncovite (Mission Pharmacal) 2 tabs b.i.d. reduced recurrence by 40%. With multiple recurrences, however, BCG is appropriate because 25% of patients who develop muscle invasion begin with low grade, Ta disease. For patients with CIS, high grade, or T1 TCC maintenance BCG is indicated. Before BCG care should be taken to resect all visible tumor and cauterize CIS. Immediate postoperative chemotherapy is given to further reduce tumor burden, which has been shown to be important in BCG therapy. Two weeks later, BCG is begun. BCG Technique: Patients are asked to withhold fluids after midnight so they will be able to hold BCG for two hours. One ampoule of TheraCys or TICE BCG is diluted in 50cc preservative-free normal saline and instilled in the carefully emptied bladder. Patients are asked to lie on their abdomen for 15 minutes during the two hour retention period. Treatments are given weekly for a total of 6 weeks. Do not give BCG if catheterization causes bleeding or patients have cystitis. Maintenance is given weekly for 3 weeks at 3, 6, 12, 18, 24, and 36 months. I have omitted the 30 month treatment, but in high risk patients continue at 4, 5, 6, 8, 10 and 12 years to reduce the risk of late disease recurrence and progression. We are evaluating 1/3 dose BCG during maintenance and I would recommend reducing to 1/3, 1/10, 1/30, and 1/100th dose in 50cc in any patient with increased side effects. BCG Failure may be caused by occult invasive or extravesical disease, inadequate immune response, or BCG resistance. Extravesical and invasive disease should be sought and treated. Percutaneous BCG can be given to improve response, especially in PPD skin test negative patients. A second 6 week course of BCG should not be given unless interferon is added because immunosuppression may otherwise be induced. 50 MU is added directly to BCG, often using the reduced BCG dose. Mitomycin 40mg/20cc, Adriamycin 50mg/25cc, Thiotepa 60mg/30cc, or Gemcitabine 1,000mg/50cc water can be used in patients who are not candidates for cystectomy. If that doesn't work call me- we are looking at new therapies such as KLH, Regressin, Erilinotinib, and Polyphenon E, and GMCSF producing adenovirus gene therapy. Created: 3/15/2005
| ||||||||||||
|
Home | Meet Dr. Lamm | About Us | Common Questions | Office Visit | e-Consultation Cancer Information | Symptoms | Treatment & Prevention | Research | Forms | For Physicians BCG Oncology, PC | 16620 North 40th Street, Suite E | Phoenix, AZ 85032 | (602) 493-6626 Copyright © 2007 BCG Oncology, PC. All rights reserved. Medical content authored by Donald L. Lamm, M.D., unless otherwise noted. |
|
The information available on and through the BCGOncology.com Web site is presented in summary form as a supplement to, and NOT a substitute for, the knowledge, skill, and judgment of qualified physicians and health care professionals. The information on BCGOncology.com has been obtained from sources believed to be accurate and reliable. However, BCG Oncology, PC makes no warranty as to the accuracy, reliability, or completeness of this information. Information accessed on or through BCGOncology.com is neither complete nor exhaustive and does not cover all disabilities, diseases, illnesses, and physical conditions or their management or treatment. Information accessed on and through BCGOncology.com is provided "AS IS" and without warranty, express or implied, including, but not limited to, any implied warranty of merchantability or of fitness for a particular purpose. View our terms of use for more information. Donald L. Lamm, MD is licensed to practice medicine in the state of Arizona, only. |