Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Biodistribution & persistence
Rat QWBA: no accumulation in uveal tract, pigmented skin or meninges; no melanin binding
“There was no significant distribution/accumulation of radioactivity in the uveal tract/retina, pigmented skin, or meninges of the brain, suggesting that daridorexant does not bind to melanin.”