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A phase I and pharmacokinetic study of the novel aza-anthracenedione compound BBR 2778 in patients with advanced solid malignancies.

Abstract
BBR 2778 is a novel aza-anthracenedione with no cardiotoxicity in preclinical models. This Phase I dose escalation trial of BBR 2778 was conducted to determine the maximum tolerated dose, the dose-limiting toxicity, and the pharmacokinetic profile of BBR 2778 in patients with advanced solid tumors. BBR 2778 was given in three consecutive weekly 30-min i.v. infusions over a 4-week cycle (cy). Thirty patients (pts) were treated with BBR 2778 at doses ranging from 5 to 150 mg/m2/week. The dose levels 5, 10, 16.5, 25, 37.5, 75, 112.5, and 150 mg/m2/week were investigated in 4 pts (9 cy), 3 pts (3 cy), 3 pts (5 cy), 6 pts (9 cy), 1 pt (1 cy), 4 pts (9 cy), 6 pts (18 cy), and 3 pts (4 cy), respectively. The dose-limiting toxicity was neutropenia, typically occurring at day 14. Other toxicities were mild to moderate and were principally thrombocytopenia, lymphopenia, alopecia, nausea, and vomiting and blue coloration of the skin and urine. No significant cardiac toxicity was observed. The plasma dose concentration curve fitted a biexponential profile, with a rapid distribution phase followed by a prolonged elimination phase (mean t1/2,z, 12 h). BBR 2778 displayed a large volume of distribution (range, 9.7-29.7 l/kg) with a high plasma clearance rate (0.75-1.31 l/h/kg). Less than 10% of the dose was recovered in urine as unchanged drug. The maximum tolerated dose was 150 mg/m2/week for 3 weeks, every 4 weeks. On the basis of this study, the recommended dose for Phase II studies is 112.5 mg/m2/week days 1 and 8 with individual optional administration at day 15, every 4 weeks. Antitumor activity was observed in patients with breast, small cell lung carcinoma, and facial cylindroma. This trial showed that BBR 2778 has a manageable toxicity profile on a weekly schedule. This lead compound of the aza-anthracenedione family shows promising antitumor activity and deserves Phase II investigation in patients with high risk of cumulative cardiotoxicity, such as anthracycline-pretreated breast cancer patients.
AuthorsS Faivre, E Raymond, V Boige, M Gatineau, X Buthaut, O Rixe, A Bernareggi, G Camboni, J P Armand
JournalClinical cancer research : an official journal of the American Association for Cancer Research (Clin Cancer Res) Vol. 7 Issue 1 Pg. 43-50 (Jan 2001) ISSN: 1078-0432 [Print] United States
PMID11205916 (Publication Type: Clinical Trial, Clinical Trial, Phase I, Journal Article)
Chemical References
  • Antineoplastic Agents
  • Isoquinolines
  • pixantrone
Topics
  • Adult
  • Aged
  • Antineoplastic Agents (adverse effects, pharmacokinetics, pharmacology)
  • Biological Availability
  • Female
  • Half-Life
  • Hematologic Tests
  • Humans
  • Infusions, Intravenous
  • Isoquinolines (adverse effects, pharmacokinetics, pharmacology)
  • Male
  • Maximum Tolerated Dose
  • Middle Aged
  • Molecular Structure
  • Neoplasms (drug therapy, metabolism)

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