Official reprint from UpToDate®
www.uptodate.com ©2017 UpToDate, Inc. and/or its affiliates. All Rights Reserved.

Medline ® Abstract for Reference 133

of 'Clinical use of tyrosine kinase inhibitors for chronic myeloid leukemia'

The effects of imatinib on pregnancy outcome.
Pye SM, Cortes J, Ault P, Hatfield A, Kantarjian H, Pilot R, Rosti G, Apperley JF
Blood. 2008;111(12):5505. Epub 2008 Mar 5.
Imatinib has now been in use for almost 10 years. Despite this cumulative experience, little is known about its effects on pregnancy; as a result, there are few published data to facilitate the counseling of women who conceive while taking imatinib. The results we now present provide information which may be of use in such circumstances. Of 180 women exposed to imatinib during pregnancy, outcome data are available for 125 (69%). Of those with known outcomes, 50% delivered normal infants and 28% underwent elective terminations, 3 following the identification of abnormalities. There were a total of 12 infants in whom abnormalities were identified, 3 of which had strikingly similar complex malformations that are clearly a cause for concern. It appears that although most pregnancies exposed to imatinib are likely to have a successful outcome, there remains a risk that exposure may result in serious fetal malformations.
Department of Haematology, Division of Investigative Science, Imperial College, London, United Kingdom. s.pye@imperial.ac.uk