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Brenneman RJ, Gay HA, Christodouleas JP, Sargos P, Arora V, Fischer-Valuck B, Huang J, Knoche E, Pachynski R, Picus J, Reimers M, Roth B, Michalski JM, Baumann BC. Review: Brain Metastases in Bladder Cancer. Bladder Cancer 2020. [DOI: 10.3233/blc-200304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nearly 50% of bladder cancer patients either present with metastatic disease or relapse distantly following initial local therapy. Prior to platinum-based chemotherapy, the incidence of bladder cancer central nervous system metastases was approximately 1%; however, their incidence has increased to 3–16% following definitive treatment as platinum-based regimens have changed the natural history of the disease. Bladder cancer brain metastases are generally managed similarly to those from more common malignancies such as non-small cell lung cancer, with surgery +/–adjuvant radiotherapy, or radiotherapy alone using stereotactic radiosurgery or whole brain radiotherapy. Limited data suggest that patients with inoperable urothelial carcinoma brain metastases who are not candidates for stereotactic radiosurgery may benefit from shorter whole brain radiation therapy courses compared to other histologies, but data is hypothesis-generating. Given improvements in the efficacy of systemic therapy and supportive care strategies for metastatic urothelial carcinoma translating in improved survival, the incidence of intracranial failures may increase. Immune checkpoint blockade therapy may benefit cisplatin-ineligible metastatic urothelial carcinoma patients as first-line therapy; however, the effectiveness of immune checkpoint blockade to treat central nervous system disease has not been established. In this review, we discuss the incidence and management of bladder cancer brain metastases and considerations regarding variations in management relative to more commonly encountered non-urothelial histologies.
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Affiliation(s)
- Randall J. Brenneman
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Hiram A. Gay
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - John P. Christodouleas
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Paul Sargos
- Department of Radiation Oncology, Jewish General Hospital, Montreal, QC, Canada
| | - Vivek Arora
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | | | - Jiayi Huang
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Eric Knoche
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Russell Pachynski
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Joel Picus
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Melissa Reimers
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Bruce Roth
- Division of Medical Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jeff M. Michalski
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Brian C. Baumann
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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Diamantopoulos LN, Khaki AR, Sonpavde GP, Venur VA, Yu EY, Wright JL, Grivas P. Central Nervous System Metastasis in Patients With Urothelial Carcinoma: Institutional Experience and a Comprehensive Review of the Literature. Clin Genitourin Cancer 2020; 18:e266-e276. [PMID: 32178979 PMCID: PMC7272305 DOI: 10.1016/j.clgc.2019.11.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 11/05/2019] [Accepted: 11/27/2019] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Central nervous system (CNS) metastasis in patients with urothelial carcinoma (UC) is uncommon and poorly understood. We aimed to explore the clinical behavior and outcomes of this unique patient population. MATERIALS AND METHODS We performed a retrospective analysis of patients with UC and CNS metastasis, treated in our institution (2006-2018), along with an exploratory patient-point meta-analysis of a similar patient population derived from a comprehensive literature review. Data regarding diagnosis, management, and outcomes were extracted. Overall survival, time to CNS metastasis (TTCM), and residual survival (RS) from CNS involvement to death were calculated (Kaplan-Meier method). Cox regression was used for testing key clinicopathologic associations. RESULTS We identified 20 "institutional" and 154 "literature" patients with adequate data granularity for analysis. Median TTCM was 17.7 (institutional cohort) and 10 (literature cohort) months. Most patients who developed CNS metastases had previous non-CNS metastasis (15/20 [75%] and 103/154 [67%], respectively). CNS lesions without previous history of metastasis were identified in 5/20 (25%) and 33/154 (21%) cases and those patients had a shorter TTCM. CNS lesions in the absence of known UC history were also documented in 18/154 (12%) literature cases. Multifocal CNS disease was associated with shorter RS in both cohorts in univariate, but not multivariate, analysis. CONCLUSION We observed a variability in disease presentation and course, with a subset of patients showing an early predilection for CNS insult, potentially reflecting a diverse underlying biology. Genomic profiling studies, elucidating the molecular landscape, and driving future treatments should be considered in this setting.
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Affiliation(s)
- Leonidas N Diamantopoulos
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle Cancer Care Alliance and Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Ali R Khaki
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle Cancer Care Alliance and Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Guru P Sonpavde
- Division of Genitourinary Oncology, Dana Farber Cancer Institute, Boston, MA
| | - Vyshak A Venur
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle Cancer Care Alliance and Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Evan Y Yu
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle Cancer Care Alliance and Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Petros Grivas
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle Cancer Care Alliance and Fred Hutchinson Cancer Research Center, Seattle, WA.
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