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Induction of Invasive Transitional Cell Bladder Carcinoma in Immune Intact Human MUC1 Transgenic Mice: A Model for Immunotherapy Development
Published on: October 30, 2013
New agents for treatment of advanced transitional cell carcinoma
1Department of Urology, University Hospital, Bonn, Germany. perabo@lycos.com
Abstract:
The prognosis for any patient with progressive or recurrent invasive transitional cell carcinoma remains poor. In this context, the focus of clinical research in these invasive cancers concentrates on identifying systemic treatment options and new agents in order to improve survival of patients. Cisplatin-based chemotherapy is standard treatment of patients with metastatic urothelial cancer; however, despite regimens as the cisplatin-gemcitabine combination, the overall response rates vary between 40% and 65%, with complete response in 15%-25% with survivals up to 16 months. This survival is frequently achieved with severe and life-threatening side effects. None the less, almost all responding patients relapse within the first year; therefore, the need for development of new and tolerable agents is urgent. This review highlights some new active chemotherapeutic as new platinum compounds (oxaliplatin, lobaplatin), gallium nitrate, ifosfamide, the antifolates piritrexim and pemetrexed (Alimta, LY231514), vinflunine and molecular targeting agents such as farnesyltransferase inhibitors (lonafarnib, R115777, SCH66336), ribozyme (RPI.4610), histone deacetylase inhibitor (CI-994) and monoclonal antibodies (epidermal growth factor receptor, Her 2/neu).
Insights
New chemotherapies and targeted agents offer hope for advanced urothelial cancer. Research focuses on improving survival and reducing side effects for patients with invasive transitional cell carcinoma.
Area of Science:
- Oncology
- Urothelial Carcinomas
- Chemotherapy
Background:
- Prognosis for progressive/recurrent invasive transitional cell carcinoma is poor.
- Cisplatin-based chemotherapy is standard for metastatic urothelial cancer, but response rates are limited and side effects severe.
- High relapse rates necessitate novel, tolerable treatment options.
Purpose of the Study:
- To review emerging chemotherapeutic and molecularly targeted agents for invasive urothelial cancers.
- To highlight agents with potential to improve patient survival and treatment tolerability.
Main Methods:
- Literature review of recent clinical research in urothelial carcinoma treatment.
- Focus on novel chemotherapeutic agents and molecularly targeted therapies.
- Analysis of response rates, survival data, and side effect profiles.
Main Results:
- New platinum compounds (oxaliplatin, lobaplatin) show activity.
- Antifolates (piritrexim, pemetrexed) and vinflunine are under investigation.
- Molecularly targeted agents include farnesyltransferase inhibitors, ribozymes, HDAC inhibitors, and monoclonal antibodies.
Conclusions:
- Significant unmet need exists for improved treatments for advanced urothelial cancer.
- Emerging agents show promise in overcoming limitations of current therapies.
- Further research is crucial to develop more effective and tolerable treatments for patients.
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