Absorption, Distribution, Metabolism and Excretion of BIA 5-1058

This was a Phase 1, single-center, open-label, absorption, distribution, metabolism, and excretion study in 8 healthy adult male subjects. Subjects received a single oral dose of 400 mg BIA 5-1058, containing approximately 3.7 MBq (0.08 milliSievert \[mSv\]) of 14C-BIA 5-1058 as oral capsules. Screening was between Day -21 and Day -2 and confinement period was of one period in the clinic involving drug administration on Day 1, with admission on Day 1 and discharge on Day 15 (336 hours post-dose).