Do you have probable Dementia with Lewy Bodies (DLB), Mild Cognitive Impairment with "high likelihood" DLB, or Parkinson's Disease Dementia (PDD)? You may be able to participate in an observational study to track your disease progression and promote future research.

To determine the helpfulness of using images of brain anatomy to educate patients about their cognitive disorders.

The SHIMMER study is designed to evaluate the safety and effectiveness of the study drug CT1812 in adults with mild to moderate Dementia with Lewy Bodies (DLB). The purpose of this study is to learn how well you or your loved one tolerate(s) a once-a-day oral dose of CT1812. This research study will take place at multiple locations in the US. Qualified participants will be in this study for approximately 8 months.

The purpose of this study is to determine whether neflamapimod, in comparison to placebo, can improve learning skills, problem solving skills, and memory loss in people diagnosed with Dementia with Lewy Bodies.