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Utilization of systemic therapy for treatment of advanced urothelial carcinoma: Lessons from real world experience
Umang Swami1, Petros Grivas2, Sumanta K Pal3
1Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
Abstract:
Metastatic bladder cancer has poor overall survival. Though systemic therapies have shown to improve overall survival, real-world studies have shown that more than half of the patients do not receive any systemic therapy, while only around 15-20% receive second-line therapy. Even in patients receiving systemic therapies a disproportionately higher use of carboplatin is observed in the first line despite proven superior effectiveness of cisplatin. Reasons for these observations include moderate effectiveness and relatively toxicity of platinum-based chemotherapy regimens, concerns with performance status and co-morbidities in this predominantly older patient population, communications barriers, lack of social support, and access to affordable healthcare. Herein we discuss potential ways to overcome these challenges which include (1) preventing/delaying metastatic disease by maximizing the receipt of neoadjuvant cisplatin-based therapy, and development of better tolerated and more effective neoadjuvant and adjuvant therapies, (2) use of avelumab maintenance therapy after 4-6 cycles of platinum-based chemotherapy to overcome attrition of patients from first to second-line therapy, (3) advancing effective and well-tolerated systemic therapies such as enfortumab vedotin, and erdafitinib to the first-line metastatic setting or even to the localized setting, (4) further development of effective and well-tolerated therapies like sacituzumab govitecan, a novel antibody-drug conjugate and (5) improving affordability and accessibility to systemic therapy agents.
Insights
Systemic therapy improves survival in metastatic bladder cancer, but many patients don't receive it due to toxicity and access issues. Strategies include better neoadjuvant care, maintenance therapy, and novel agents like enfortumab vedotin.
Area of Science:
- Oncology
- Medical Therapeutics
Background:
- Metastatic bladder cancer (MBC) has a poor prognosis, with limited systemic therapy uptake in real-world settings.
- Significant patient attrition occurs between first- and second-line treatments, and cisplatin is underutilized despite superior efficacy compared to carboplatin.
- Challenges include chemotherapy toxicity, patient comorbidities, and socioeconomic factors impacting treatment access.
Purpose of the Study:
- To discuss strategies for overcoming barriers to effective systemic therapy in metastatic bladder cancer.
- To explore novel therapeutic approaches and optimize existing treatment paradigms for improved patient outcomes.
Main Methods:
- Discussion of current treatment challenges and review of emerging therapeutic strategies.
- Analysis of factors influencing systemic therapy utilization in metastatic bladder cancer patients.
- Consideration of novel agents and treatment sequencing for improved patient management.
Main Results:
- Neoadjuvant cisplatin-based therapy can prevent or delay metastatic disease.
- Avelumab maintenance therapy can mitigate patient attrition from first- to second-line treatment.
- Novel agents like enfortumab vedotin, erdafitinib, and sacituzumab govitecan show promise for earlier lines of therapy.
Conclusions:
- Optimizing neoadjuvant and adjuvant therapies is crucial for preventing metastatic bladder cancer.
- Maintenance therapy and novel systemic agents can improve treatment continuation and efficacy.
- Addressing affordability and accessibility is essential for equitable patient care in metastatic bladder cancer.
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