Gravis Gwenaelle, Salem Naji, Bladou Franck, Viens Patrice
Institut Paoli-Calmettes, Marseille.
Bull Cancer. 2007 Jul;94(7 Suppl):F21-8.
Androgen deprivation in patients with metastatic prostate cancer produces palliation of symptoms, PSA decrease and tumoral regression in most patients. After a brief period of disease regression lasting 18 to 24 months nearly all pts will progress to androgen independence disease (HRPC) with progressive clinical deterioration and ultimately death. Chemotherapy with mitoxantrone has been shown to palliate symptoms but did not extend survival. Two large randomized trials showed a survival benefit for pts with HRPC treated with docetaxel with a reduction risk of death by 21-24%, and significant improvement in palliation of symptoms and quality of life. New agents targeting angiogenesis, apoptosis, signal transduction pathway, used alone or in combination with docetaxel currently are under trial in an attempt to provide much needed improvements in outcome. Questions remains in suspend when and who need to be treated, earlier, in high risk as in adjuvant setting? Current data have demonstrated that neoadjuvant or adjuvant chemotherapy is relatively safe and feasible. Further investigation through prospective randomize trials is critical to define the precise role of this modality in high risk populations.
转移性前列腺癌患者的雄激素剥夺治疗可使大多数患者症状缓解、前列腺特异性抗原(PSA)降低及肿瘤消退。在经历持续18至24个月的短暂疾病消退期后,几乎所有患者都会进展为去势抵抗性疾病(HRPC),临床症状逐渐恶化,最终导致死亡。米托蒽醌化疗已被证明可缓解症状,但并未延长生存期。两项大型随机试验表明,多西他赛治疗HRPC患者可带来生存获益,死亡风险降低21%至24%,症状缓解及生活质量显著改善。目前,单独或与多西他赛联合使用的针对血管生成、细胞凋亡、信号转导通路的新型药物正在进行试验,以期显著改善治疗效果。对于何时以及哪些患者,如在高风险辅助治疗情况下,需要更早接受治疗,仍存在疑问。目前的数据表明,新辅助或辅助化疗相对安全可行。通过前瞻性随机试验进行进一步研究对于明确这种治疗方式在高风险人群中的精确作用至关重要。