PKD1 x LRRK2 x PKA x PKN2

The trial will evaluate the safety of one dose regimen of H-1337 [1% twice daily (b.i.d.)] in both eyes in healthy volunteers.

The trial will evaluate the safety and efficacy of 3 dose regimens of H-1337 [0.6% twice daily (b.i.d.), 1.0% b.i.d. and 1.0% once in the morning (q.a.m.), and timolol maleate (0.5%, b.i.d.) in both eyes for 28 days.

The study will evaluate the safety, tolerability, and preliminary efficacy of three concentrations of H-1337 and vehicle administered twice daily in a parallel group, double-masked design for 28 days of dosing in patients with elevated intraocular pressure (IOP).