This is an open-label, single-center study to evaluate the mass-balance and pharmacokinetics
of GB491 in 4-8 healthy male subjects receiving a single oral 150mg dose of GB491 containing
approximately 50 uCi of [14C]GB491. This study will help understand how the drug appears in
the blood, urine, and feces after it is administered.
In addition, this study will also evaluate the safety of a single dose of [14C]GB491 when
given to healthy subjects.