PMID- 18219445 OWN - NLM STAT- MEDLINE DCOM- 20080717 LR - 20211020 IS - 0167-6997 (Print) IS - 0167-6997 (Linking) VI - 26 IP - 2 DP - 2008 Apr TI - Phase I clinical evaluation of ZD6126, a novel vascular-targeting agent, in patients with solid tumors. PG - 159-67 LID - 10.1007/s10637-008-9112-9 [doi] AB - BACKGROUND: ZD6126 is a novel vascular-targeting agent that disrupts the endothelial tubulin cytoskeleton causing selective occlusion of tumor vasculature and extensive tumor necrosis. This Phase I clinical study was conducted to evaluate the dose and administration schedule of ZD6126. METHODS: Adult patients with solid tumors refractory to existing treatments received a 10-min, single-dose intravenous infusion of ZD6126 every 14 or 21 days. Subsequent dose escalation was performed, based on the incidence of adverse events (AEs) within the first cycle of drug administration. Blood samples were obtained for pharmacokinetic analysis, and the effects of ZD6126 on tumor vasculature were visualized using DCE-MRI technology. RESULTS: Forty-four patients received ZD6126 (5-112 mg/m2 in the 21-day schedule, n=35; 40-80 mg/m2 in the 14-day schedule, n=9). Common AEs were similar in both groups and included abdominal pain, nausea and vomiting, which appeared to be dose related. The incidence of abdominal pain at 112 mg/m2 in the 21-day study prevented further dose escalation. Pharmacokinetic studies confirmed that ZD6126 is rapidly hydrolyzed to ZD6126 phenol. There was no difference in the pharmacokinetics of ZD6126 phenol upon repeat administration or between the two dosing regimens. DCE-MRI evaluation has demonstrated the antivascular effects of ZD6126. CONCLUSIONS: This study identified that ZD6126 administered every 2 or 3 weeks at 80 mg/m2 was well tolerated, with mild but manageable gastrointestinal AEs. In approximately 11% (5 out of 44) of patients, ZD6126 was associated with cardiac events categorized as dose limiting toxicities (one patient with asymptomatic decreased left ventricular ejection fraction (LVEF), two with increased troponin concentrations, one with myocardial ischemia, and one with ECG signs of myocardial ischemia). FAU - LoRusso, Patricia M AU - LoRusso PM AD - Karmanos Cancer Institute, Wayne State University, 4100 John R, Mail Code: HW04HO, Detroit, MI 48201, USA. lorussop@karmanos.org FAU - Gadgeel, Shirish M AU - Gadgeel SM FAU - Wozniak, Antoinette AU - Wozniak A FAU - Barge, Alan J AU - Barge AJ FAU - Jones, Helen K AU - Jones HK FAU - DelProposto, Zachary S AU - DelProposto ZS FAU - DeLuca, Pamela A AU - DeLuca PA FAU - Evelhoch, Jeffrey L AU - Evelhoch JL FAU - Boerner, Scott A AU - Boerner SA FAU - Wheeler, Catherine AU - Wheeler C LA - eng PT - Clinical Trial, Phase I PT - Journal Article DEP - 20080125 PL - United States TA - Invest New Drugs JT - Investigational new drugs JID - 8309330 RN - 0 (Antineoplastic Agents) RN - 0 (N-acetylcochinol-O-phosphate) RN - 0 (Organophosphorus Compounds) RN - 0 (Tubulin) SB - IM MH - Adult MH - Aged MH - Antineoplastic Agents/*administration & dosage/adverse effects/pharmacokinetics MH - Dose-Response Relationship, Drug MH - Endothelium, Vascular/drug effects MH - Female MH - Humans MH - Infusions, Intravenous MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Neoplasms/*drug therapy MH - Organophosphorus Compounds/*administration & dosage/adverse effects/pharmacokinetics MH - Tubulin/drug effects EDAT- 2008/01/26 09:00 MHDA- 2008/07/18 09:00 CRDT- 2008/01/26 09:00 PHST- 2007/03/07 00:00 [received] PHST- 2008/01/07 00:00 [accepted] PHST- 2008/01/26 09:00 [pubmed] PHST- 2008/07/18 09:00 [medline] PHST- 2008/01/26 09:00 [entrez] AID - 10.1007/s10637-008-9112-9 [doi] PST - ppublish SO - Invest New Drugs. 2008 Apr;26(2):159-67. doi: 10.1007/s10637-008-9112-9. Epub 2008 Jan 25.