PMID- 17699865 OWN - NLM STAT- MEDLINE DCOM- 20070925 LR - 20131121 IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 13 IP - 16 DP - 2007 Aug 15 TI - Phase I and pharmacokinetic study of the (6-maleimidocaproyl)hydrazone derivative of doxorubicin. PG - 4858-66 AB - PURPOSE: The (6-maleimidocaproyl)hydrazone derivative of doxorubicin (DOXO-EMCH) is an albumin-binding prodrug of doxorubicin with acid-sensitive properties that shows superior antitumor efficacy in murine tumor models and a favorable toxicity profile in mice, rats, and dogs compared with doxorubicin. The purpose of the phase I study was to characterize the toxicity profile of DOXO-EMCH, establish a recommended dose for phase II studies, and assess potential anticancer activity. EXPERIMENTAL DESIGN: A starting dose of 20 mg/m2 doxorubicin equivalents was chosen. Forty-one patients with advanced cancer disease were treated with an i.v. infusion of DOXO-EMCH once every 3 weeks at a dose level of 20 to 340 mg/m2 doxorubicin equivalents. RESULTS: Treatment with DOXO-EMCH was well tolerated up to 200 mg/m2 without manifestation of drug-related side effects. Myelosuppression (grade 1-2) and mucositis (grade 1-2) were the predominant adverse effects at dose levels of 260 mg/m2 and myelosuppression (grade 1-3) as well as mucositis (grade 1-3) were dose limiting at 340 mg/m2. No cardiac toxicity was observed. Of 30 of 41 evaluable patients, 12 patients (40%) had progressive disease, 15 patients (57%) had stable disease, and 3 patients (10%) had a partial remission. CONCLUSIONS: DOXO-EMCH showed a good safety profile and was able to induce tumor regressions in tumor types known to be anthracycline-sensitive tumors, such as breast cancer, small cell lung cancer, and sarcoma. The recommended doxorubicin equivalent dose for phase II studies is 260 mg/m2. FAU - Unger, Clemens AU - Unger C AD - Department Medical Oncology, Tumor Biology Center, Freiburg, Germany. unger@tumorbio.uni-freiburg.de FAU - Haring, Brigitte AU - Haring B FAU - Medinger, Michael AU - Medinger M FAU - Drevs, Joachim AU - Drevs J FAU - Steinbild, Simone AU - Steinbild S FAU - Kratz, Felix AU - Kratz F FAU - Mross, Klaus AU - Mross K LA - eng PT - Clinical Trial, Phase I PT - Journal Article PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Antibiotics, Antineoplastic) RN - 0 (Hydrazones) RN - 0 (Prodrugs) RN - 151038-96-9 (doxorubicin(6-maleimidocaproyl)hydrazone) RN - 80168379AG (Doxorubicin) SB - IM MH - Adult MH - Aged MH - Antibiotics, Antineoplastic/*adverse effects/pharmacokinetics MH - Doxorubicin/adverse effects/*analogs & derivatives/pharmacokinetics MH - Female MH - Heart/drug effects MH - Humans MH - Hydrazones/*adverse effects/pharmacokinetics MH - Male MH - Maximum Tolerated Dose MH - Middle Aged MH - Neoplasms/*drug therapy MH - Prodrugs/*adverse effects/pharmacokinetics MH - Skin/drug effects EDAT- 2007/08/19 09:00 MHDA- 2007/09/26 09:00 CRDT- 2007/08/19 09:00 PHST- 2007/08/19 09:00 [pubmed] PHST- 2007/09/26 09:00 [medline] PHST- 2007/08/19 09:00 [entrez] AID - 13/16/4858 [pii] AID - 10.1158/1078-0432.CCR-06-2776 [doi] PST - ppublish SO - Clin Cancer Res. 2007 Aug 15;13(16):4858-66. doi: 10.1158/1078-0432.CCR-06-2776.