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Title: Spisulosine (ES-285) given as a weekly three-hour intravenous infusion: results of a phase I dose-escalating study in patients with advanced solid malignancies
Authors: Sch√∂ffski, Patrick ×
Dumez, Herlinde
Ruijter, R
Miguel-Lillo, B
Soto-Matos, A
Alfaro, V
Giaccone, G #
Issue Date: Dec-2011
Publisher: Springer-Verlag
Series Title: Cancer Chemotherapy and Pharmacology vol:68 issue:6 pages:1397-1403
Abstract: PURPOSE: Spisulosine is a marine compound that showed antitumor activity in preclinical studies. We report results of a phase I trial performed in patients with advanced solid tumors with the marine compound, with the aim to determine the maximum tolerated dose (MTD) of a weekly 3-h intravenous (iv.) infusion, and to evaluate the safety, efficacy, and pharmacokinetics (PK) of the compound. PATIENTS AND METHODS: Two centers contributed 25 patients to the trial, and 7 dose levels were explored. RESULTS: In dose levels ranging from 4 to 128 mg/m²/day, no dose-limiting toxicities (DLT) were observed. One patient had DLT at 200 mg/m², a reversible grade 3 ALT increase. The MTD was not reached due to early termination of the Spisulosine trial program but is considered to be likely in the range of 200 mg/m² for this schedule. Drug-related adverse reactions included mild to moderate nausea, pyrexia, injection site reactions, and vomiting. One case of grade 4 peripheral motor and sensory neuropathy associated with general weakness and pain was observed during treatment cycle 4 and possibly contributed to the death of the patient. Grade 3 laboratory abnormalities included anemia and lymphopenia and increases in liver enzymes (alkaline phosphatase, transaminases, and bilirubin). Objective responses were not observed, and only four patients had short-lasting stable disease (<3 months). The PK data indicated a wide distribution, a long residence time, and dose proportionality of the agent. CONCLUSIONS: Hepato- and neuro-toxicity are schedule independent dose-limiting adverse events for this marine compound, as illustrated by this and other early clinical trials.
URI: 
ISSN: 0344-5704
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Experimental Oncology
× corresponding author
# (joint) last author

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