A Study of LY4006895 in Healthy Participants With Early Symptomatic Alzheimer's Disease (AD)

This study tests a new investigational drug called LY4006895 in people who are otherwise healthy (Part B) and in people with early-stage Alzheimer's disease showing mild memory symptoms (Part A). Researchers want to understand how the drug behaves in the body and whether it is safe. **You may be eligible if...** - You are generally in good health - Your body mass index (BMI) is between 18 and 40 - For Part A: You have early Alzheimer's with gradual memory changes for at least 6 months, and your memory test scores fall within a mild-to-moderate range - You have a reliable person (study partner) who spends at least 10 hours per week with you and can attend visits **You may NOT be eligible if...** - You have serious heart, liver, kidney, or other significant health conditions - You have low hemoglobin (anemia) - You have a life expectancy of less than 24 months - You have neurological conditions other than Alzheimer's Talk to your doctor to see if this trial is right for you.