An evaluation of the use and handling errors of currently available recombinant human follicle-stimulating hormone pen injectors by women with infertility and fertility nurses.

: This study compared preference ratings of women with infertility and nurses before and after simulated injection, and handling errors, with the GONAL-f®, Bemfola®, Ovaleap® and Rekovelle® pen injectors. : Injector-naïve women and injector-experienced fertility nurses tested injectors with masked labels in a randomized testing order. Injections were made into a foam pad and injectors were rated before and after use.