Study I7S-MC-HBEH (HBEH) is a multicenter, randomized (i.e. study in which people are assigned at random (by chance alone) to receive one of several clinical interventions), double-blind (i.e., neither the participant nor the person evaluating for the study knows what group the participant has been assigned to), parallel-group (i.e., a type of study where two groups of treatments, A and B, are given so that one group receives only A while another group receives only B.), placebo-controlled (i.e. one group will receive the study drug and the other will receive a substance that has no therapeutic effect, also known as placebo), fixed-dosage (i.e., the dosage will not change during the course of the study), Phase 2a study (i.e., a trial with the objective of assessing what dose is more effective in treating symptoms.) comparing various dosages of LY3154207 administered orally once a day with placebo over 12 weeks in subjects with mild-to-moderate Parkinson disease dementia (PDD).
The study includes a Screening Period (Visits 1 to 2) of a minimum of 7 days and up to 14 days, a 14-day Pretreatment Period (Visits 2 to 3), a 12-week Treatment Period (Visits 3 to 11), and a 14-day Safety Follow-Up Period (Visit 12).
Your participation will last about 17-18 weeks.
The purpose of this study is to find out how LY3154207 compares with placebo in treating memory and thinking problems in individuals with mild-to-moderate Parkinson's disease dementia.