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Initial testing (stage 1) of the investigational mTOR kinase inhibitor MLN0128 by the pediatric preclinical testing program

  • Min H. Kang
  • , C. Patrick Reynolds
  • , John M. Maris
  • , Richard Gorlick
  • , E. Anders Kolb
  • , Richard Lock
  • , Hernan Carol
  • , Stephen T. Keir
  • , Jianrong Wu
  • , Dmitry Lyalin
  • , Raushan T. Kurmasheva
  • , Peter J. Houghton
  • , Malcolm A. Smith

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

MLN0128 is an investigational small molecule ATP-competitive inhibitor of the serine/threonine kinase mTOR. MLN0128 was tested against the in vitro panel at concentrations ranging from 0.1nM to 1μM and against the PPTP in vivo panels at a dose of 1mg/kg administered orally daily×28. In vitro the median relative IC50 concentration was 19nM. In vivo MLN0128 induced significant differences in EFS in 24/31 (77%) solid tumor models, but 0/7 ALL xenografts. The modest activity observed for MLN0128 against the PPTP preclinical models is similar to that previously reported for another TOR kinase inhibitor.

Original languageEnglish
Pages (from-to)1486-1489
Number of pages4
JournalPediatric Blood and Cancer
Volume61
Issue number8
DOIs
StatePublished - Aug 2014

Funding

FundersFunder number
National Childhood Cancer Registry – National Cancer InstituteP30CA021765

    Keywords

    • Developmental therapeutics
    • MTOR inhibitor
    • Preclinical testing

    ASJC Scopus subject areas

    • Pediatrics, Perinatology, and Child Health
    • Hematology
    • Oncology

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