Foreløbige fund fra dette igangværende forsøg viser, at lenalidomid forårsager misdannelser (forkortede ekstremiteter, bøjede fingre/ tæer, håndled og/ eller hale, for mange eller manglende fingre/ tæer) hos afkom af hunaber som har fået lægemidlet under graviditeten.
Preliminary findings from this on-going study showed that lenalidomide produced malformations (short limbs, bent digits, wrist and/or tail, supernumerary or absent digits) in the offspring of female monkeys who received the drug during pregnancy.