title: The development of camptothecin analogs in childhood cancers.
abstract: Camptothecin analogs, agents that target the intranuclear enzyme topoisomerase I, represent a promising new class of anticancer drugs for the treatment of childhood cancer. In preclinical studies, camptothecins, such as topotecan and irinotecan, are highly active against a variety of pediatric malignancies including neuroblastomas, rhabdomyosarcomas, gliomas, and medulloblastomas. In this paper, we review the status of completed and ongoing clinical trials and pharmacokinetic studies of camptothecin analogs in children. These and future planned studies of this novel class of cytotoxic agents are critical to defining the ultimate role of topoisomerase I poisons in the treatment of childhood cancer.
authors.affiliation: Texas Children's Cancer Center, Baylor College of Medicine, Houston, Texas, USA. lbomgaars@txccc.org
authors.forename: L
authors.initials: L
authors.lastname: Bomgaars
authors.forename: S L
authors.initials: SL
authors.lastname: Berg
authors.forename: S M
authors.initials: SM
authors.lastname: Blaney
mesh_terms: D000293:Adolescent; D000970:Antineoplastic Agents / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D002166:Camptothecin / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000493:pharmacokinetics / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D017321:Clinical Trials, Phase I as Topic; D017322:Clinical Trials, Phase II as Topic; D004791:Enzyme Inhibitors / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D006801:Humans; D007223:Infant; D000077146:Irinotecan; D009369:Neoplasms / Q000188:drug therapy*; D059004:Topoisomerase I Inhibitors; D019772:Topotecan / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*
chemical_list: D000970:Antineoplastic Agents; D004791:Enzyme Inhibitors; D059004:Topoisomerase I Inhibitors; C080125:9-aminocamptothecin; D000077146:Irinotecan; D019772:Topotecan; D002166:Camptothecin