ACP-204 in Adults With Alzheimer's Disease Psychosis Open Label Extension Study

Inclusion Criteria: * Subject has successfully completed ACP-204-006 study * Male or female (age 55 to 95 years old): female must be of non-childbearing potential, male must take appropriate contraceptive method if partner has childbearing potential * Subject has a designated study partner/caregiver * Subjects are able to complete all study visits with a study partner/caregiver * Signed inform consent form with a caregiver or legal representative Exclusion Criteria: * Requires treatment with a medication prohibited by the protocol * Is in hospice and receiving end-of-life palliative care, or has become bedridden * Unstable clinically significant medical condition other than AD * Any medical condition that in the opinion of the investigator may affect safety or ability to complete the study Additional inclusion/exclusion criteria apply. Subjects will be evaluated at screening to ensure that all criteria for study participation are met.