[Novel therapeutic targets in metastatic renal cell carcinoma. Results of the treatment with single-agent bevacizumab in a single institution]. / Nuevas dianas terapéuticas para el carcinoma de células renales metastásico. Resultados del tratamiento con bevacizumab en monoterapia en un único centro hospitalario.

AIM: Along the past decade a number of new agents have been developed showing promising results in the treatment of metastatic renal cell carcinoma. We describe our experience with the use of bevacizumab in monotherapy in the Urology and Medical Oncology departments of our institution. MATERIAL AND METHODS: A consecutive series of patients treated with Bevacizumab 10 mg/Kg every 14 days between January 2006 and January 2008 has been assessed. Data concerning the type of surgery, histological subtype, tumor stage, Motzer's risk group, metastatic sites number of bevacizumab courses given, time to progression and overall survival were collected. RESULTS: 25 patients (16 male, 9 female) were analyzed. Median age was 59 years. Nineteen of them (75%) had prior surgery: radical nephrectomy 14, cytoreductive 4 y tumorectomy 1). Clear cell carcinoma was the most frequent subtype (22 patients). According to Motzer's prognostic index 14 had good prognosis, 8 intermediate and 3 poor prognosis. Median time to progression was 19 weeks. Overall median survival since metastatic disease was diagnosed 8,7 months. CONCLUSIONS: Bevacizumab offers, as single agent, modest activity in the metastatic renal cell carcinoma. The recently labeled use in combination with interferon as well as the newer targeted agents will improve the results of the treatment of this disease in the next future.

Nuevas dianas terapéuticas para el carcinoma de células renales metastásico. Resultados del tratamiento con bevacizumab en monoterapia en un único centro hospitalario / Novel therapeutic targets in metastatic renal cell carcinoma. Results of the treatment with single-agent bevacizumab in a single institution

Objetivos: En la última década se están desarrollando multitud de nuevas moléculas que ofrecen resultados esperanzadores para el tratamiento del CCR metastásico. Este estudio describe nuestra experiencia en 25 pacientes tratados con bevacizumab en monoterapia. Material y métodos: Se analizan los resultados obtenidos en 25 pacientes con CCR metastásico tratados con Bevacizumab (10 mg/Kg quincenal) entre enero del 2006 y enero del 2008. Se recogieron datos acerca del tipo de cirugía practicada, tipo histológico, estadio tumoral, grupo de riesgo de Motzer, localizaciones metastásicas, número de ciclos administrados, tiempo hasta la progresión y supervivencia global. Resultados: Se analizaron 25 pacientes (16 varones y 9 mujeres), con una mediana de edad de 59 años. Más de la mitad de ellos (19) se había sometido a algún tipo de intervención quirúrgica (14 nefrectomía radical, 4 citorreductora y 1 tumorectomía). La mayor parte de los enfermos presentaban histología de células claras (22). 14 pacientes pertenecían al grupo de buen pronóstico de Motzer, 8 al grupo de pronóstico intermedio y 3 al de mal pronóstico. La mediana de tiempo hasta la progresión fue de 19 semanas, con una mediana de supervivencia global desde el inicio de tratamiento de 8,7 meses. Conclusiones: El bevacizumab en monoterapia ofrece unos resultados modestos para el tratamiento del CCR metastásico. Su reciente aprobación en combinación con Interferon, y la aparición progresiva de distintas dianas terapéuticas, permitirá optimizar los resultados en los próximos años (AU)

Aim: Along the past decade a number of new agents have been developed showing promising results in the treatment of metastatic renal cell carcinoma. We describe our experience with the use of bevacizumab in monotherapy in the Urology and Medical Oncology departments of our institution. Material and methods: A consecutive series of patients treated with Bevacizumab 10 mg/Kg every 14 days between January 2006 and January 2008 has been assessed. Data concerning the type of surgery, histological subtype, tumor stage, Motzer’s risk group, metastatic sites number of bevacizumab courses given, time to progression and overall survival were collected. Results: 25 patients (16 male, 9 female) were analyzed. Median age was 59 years. Nineteen of them (75%) had prior surgery: radical nephrectomy 14, cytoreductive 4 y tumorectomy 1). Clear cell carcinoma was the most frequent subtype (22 patients). According to Motzer’s prognostic index 14 had good prognosis, 8 intermediate and 3 poor prognosis. Median time to progression was 19 weeks. Overall median survival since metastatic disease was diagnosed 8,7 months. Conclusions: Bevacizumab offers, as single agent, modest activity in the metastatic renal cell carcinoma. The recently labeled use in combination with interferon as well as the newer targeted agents will improve the results of the treatment of this disease in the next future (AU)