Beekman Kathleen W, Bradley Deborah, Hussain Maha
Genitourinary Oncology Service, Division of Hematology-Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.
Semin Oncol. 2007 Apr;34(2):154-64. doi: 10.1053/j.seminoncol.2006.12.007.
Standard cytotoxic regimens for metastatic bladder cancer, such as gemcitabine/cisplatin or methotrexate, vinblastine, doxorubicin, and cipslatin (M-VAC), yield impressive overall response rates of 45% to 70%. Despite this, long-term, disease-free, overall survival is rare, and most patients eventually succumb to the disease. Much work has been undertaken evaluating the clinical and molecular factors associated with progressive bladder cancer, and this has, in turn, led to the development of both novel targets and agents. These include standard cytotoxics such as pemetrexed, an antifolate and antimetabolite agent that has demonstrated an overall response rate of 30% in early studies, and small-molecule tyrosine kinase inhibitors such as sunitinib, which will be studied as maintenance therapy for patients who respond to first-line chemotherapy. The evaluation of new targets and new agents in the midst of limited patient, logistical, and financial resources will be one of the more difficult challenges for investigators over the next several years.
转移性膀胱癌的标准细胞毒性治疗方案,如吉西他滨/顺铂或甲氨蝶呤、长春花碱、阿霉素和顺铂(M-VAC),总体缓解率可达45%至70%,令人印象深刻。尽管如此,长期无病生存和总生存的情况很少见,大多数患者最终仍会死于该疾病。人们已经开展了大量工作来评估与进展期膀胱癌相关的临床和分子因素,这反过来又推动了新靶点和新药物的研发。这些包括标准细胞毒性药物,如培美曲塞,一种抗叶酸和抗代谢药物,在早期研究中显示总体缓解率为30%,以及小分子酪氨酸激酶抑制剂,如舒尼替尼,将作为对一线化疗有反应的患者的维持治疗药物进行研究。在患者、后勤和资金资源有限的情况下评估新靶点和新药物,将是研究人员在未来几年面临的更具挑战性的难题之一。