Development and pharmaceutical evaluation of the anticancer Anthrafuran/Cavitron complex, a prototypic parenteral drug formulation

Eur J Pharm Sci. 2017 Nov 15:109:631-637. doi: 10.1016/j.ejps.2017.09.025. Epub 2017 Sep 18.

Abstract

To improve the water solubility of the anticancer drug candidate LCTA-2034 (A1), we investigated the formation of complexes of this anthrax[2,3-b]furan congener with the solubilizing 2-hydroxypropyl derivative of β-cyclodextrin HP-βCD (Cavitron®). The interaction of A1 with HP-βCD resulted in the inclusion complex A1/HP-βCD in 1:1 stoichiometry. The A1/HP-βCD complex was used to develop a prototype of a lyophilised drug formulation with enhanced (>10-fold) aqueous solubility than A1 and a long-term stability. The use of HP-βCD decreased the acute toxicity of A1 by >30%. The A1/HP-βCD drug formulation as well as A1 in equal doses (5×30mg/kg) to increase the lifespan by up to 140% for mice with i.p. transplanted P388 leukaemia. Furthermore, the A1/HP-βCD formulation demonstrated a significant and reliable antitumor efficacy in a Р388/ADR drug resistant leukaemia and B16/F10 melanoma, proving a perspective of investigations of toxicology, biodistribution and pharmacokinetics.

Keywords: 2-Hydroxypropyl-β-cyclodextrin; Acute toxicity; Anthra[2,3-b]furan; Anticancer activity; Drug formulation.

MeSH terms

  • 2-Hydroxypropyl-beta-cyclodextrin* / chemistry
  • 2-Hydroxypropyl-beta-cyclodextrin* / pharmacology
  • 2-Hydroxypropyl-beta-cyclodextrin* / therapeutic use
  • 2-Hydroxypropyl-beta-cyclodextrin* / toxicity
  • Animals
  • Antineoplastic Agents* / chemistry
  • Antineoplastic Agents* / pharmacology
  • Antineoplastic Agents* / therapeutic use
  • Antineoplastic Agents* / toxicity
  • Cell Survival / drug effects
  • Drug Resistance, Neoplasm
  • Female
  • Furans* / chemistry
  • Furans* / pharmacology
  • Furans* / therapeutic use
  • Furans* / toxicity
  • HCT116 Cells
  • Humans
  • Lethal Dose 50
  • Leukemia / drug therapy
  • Melanoma, Experimental / drug therapy
  • Mice, Inbred C57BL
  • Mice, Inbred DBA

Substances

  • Antineoplastic Agents
  • Furans
  • LCTA-2034
  • 2-Hydroxypropyl-beta-cyclodextrin