Practical aspects of including functional endpoints in developmental toxicity studies. Case study: immune function in HuCD4 transgenic mice exposed to anti-CD4 MAb in utero.


Journal Article

Keliximab is a human-cynomolgus monkey chimeric (Primatized) monoclonal antibody with specificity for human and chimpanzee CD4. As the preclinical safety assessment of biopharmaceuticals requires evaluation in pharmacologically responsive species, comprehensive toxicology studies, including reproductive toxicity, of this antibody were conducted in a human CD4 transgenic mouse model. The reproductive toxicology studies included a pre- and postnatal development study that incorporated immunotoxicological evaluation of offspring (F1) mice. The potential effects of exposure to treating maternal mice (F0) with keliximab during pregnancy and lactation on offspring viability, physical growth, neurobehavioral development, reproductive function, lymphoid tissue morphological structure, lymphocyte subsets and host resistance to Candida albicans infection were assessed. The results showed no impairment of these functions. The use of F1 transgenic mice in study with keliximab provides an example of a novel practical approach to assess developmental immunotoxicity within a study of pre- and postnatal development designed in accordance with ICH Guidelines.

Full Text

Cited Authors

  • Herzyk, DJ; Bugelski, PJ; Hart, TK; Wier, PJ

Published Date

  • September 2002

Published In

Volume / Issue

  • 21 / 9-10

Start / End Page

  • 507 - 512

PubMed ID

  • 12458908

Pubmed Central ID

  • 12458908

Electronic International Standard Serial Number (EISSN)

  • 1477-0903

International Standard Serial Number (ISSN)

  • 0960-3271

Digital Object Identifier (DOI)

  • 10.1191/0960327102ht289oa


  • eng