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Patient-derived Orthotopic Xenograft Models for Human Urothelial Cell Carcinoma and Colorectal Cancer Tumor Growth and Spontaneous Metastasis
Published on: May 12, 2019
Developments in urologic oncology "OncoForum": The best of 2017
F Gómez-Veiga1, A Alcaraz-Asensio2, J Burgos-Revilla3
1Servicio de Urología, Hospital Universitario de Salamanca, Grupo de Investigación Traslacional de Urología GITUR, Instituto de Investigación Biomédica de Salamanca IBSAL, Salamanca, España.
Objective:
To put forth new findings of urologic oncology with impact on clinical practice presented during 2017 in the main annual meetings.
Methods:
This document reviews abstracts on prostate, kidney and bladder cancer presented at the congresses of 2016 (EAU, AUA, ASCO, ESMO and ASTRO) and publications with the highest impact in this period valued with the highest scores by the OncoForum committee.
Results:
Among patients at high risk of recurrent renal cell carcinoma after nephrectomy, adjuvant sunitinib compared to placebo showed a benefit in patients at higher risk of recurrence. In cisplatin-ineligible advanced urothelial cancer, pembrolizumab elicits clinically meaningful, durable responses. Among patients with localized prostate cancer, treatment for disease progression was less frequent (absolute difference, 26.2 percentage pontis) and adverse events was more frequent with surgery than with observation. Among patients with locally advanced or merastatic prostate cancer, androgen-deprivation therapy plus abiraterone and prednisolone resulted in fewer deaths and fewer treatment-failure events (P<.001). Among patients with metastatic castration-resistant prostate cancer previously treated with abiraterone acetate, enzalutamide median radiographic progression free survival was 8,1 months and enzalutamide median overall survival was not reached.
Conclusions:
Among patients at high risk of recurrent renal cell carcinoma after nephrectomy, adjuvant sunitinib showed a benefit across subgroups including patients at higher risk of recurrence. Among patients with localized prostate cancer, surgery was not associated with significantly lower all-cause or porstate-cancer mortality than observation. Among patients with locally advanced or merastatic prostate cancer, androgen-deprivation therapy plus abiraterone and prednisolone was associated with significantly higher rates of overall and failure-free survival than androgen-deprivation therapy alone. In patients with metastatic castration-resistant prostate cancer previously treated with abiraterone enzalutamide remained active.
Insights
New urologic oncology findings show adjuvant sunitinib benefits high-risk kidney cancer patients. For advanced urothelial cancer, pembrolizumab offers durable responses. Prostate cancer treatments vary in efficacy and adverse events.
Area of Science:
- Urologic Oncology
- Medical Oncology
- Clinical Practice Updates
Background:
- Key advancements in urologic oncology impact clinical practice.
- Focus on prostate, kidney, and bladder cancers.
Purpose of the Study:
- To present significant findings from major 2017 urologic oncology meetings.
- Highlight research with potential clinical practice implications.
Main Methods:
- Review of abstracts from 2016 major oncology congresses (EAU, AUA, ASCO, ESMO, ASTRO).
- Inclusion of high-impact publications as evaluated by the OncoForum committee.
Main Results:
- Adjuvant sunitinib demonstrated benefit in high-risk recurrent renal cell carcinoma post-nephrectomy.
- Pembrolizumab showed durable responses in cisplatin-ineligible advanced urothelial cancer.
- Localized prostate cancer: surgery had more adverse events than observation; no significant mortality difference.
- Advanced prostate cancer: Androgen-deprivation therapy (ADT) plus abiraterone and prednisolone improved survival compared to ADT alone.
- Metastatic castration-resistant prostate cancer (mCRPC) post-abiraterone: enzalutamide showed activity with a median radiographic progression-free survival of 8.1 months.
Conclusions:
- Adjuvant sunitinib is beneficial for high-risk renal cell carcinoma patients.
- Surgery for localized prostate cancer did not significantly reduce mortality compared to observation.
- ADT plus abiraterone and prednisolone significantly improved overall and failure-free survival in advanced prostate cancer.
- Enzalutamide remains an active treatment option for mCRPC previously treated with abiraterone.
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