Plain-English translation of NCT03402919 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
This is a long-term research study that follows people with different types of memory and thinking problems to understand how these conditions change over time. Researchers collect detailed information from participants through brain scans, thinking tests, medical exams, and biological samples (blood, saliva, and other materials) at the start and then check in with them annually to see if anything has changed. By watching hundreds of people for many years, scientists hope to better understand which people's thinking will stay the same, which will get worse, and why.
Memory and thinking problems affect many older adults, but doctors don't yet fully understand why some people develop dementia while others don't, or what causes different types of cognitive decline. This study exists to gather detailed information over time that could help researchers predict who is at risk, spot early warning signs, and eventually develop better ways to prevent or treat these conditions.
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If you join, you'll have an initial visit where researchers perform a detailed medical exam, thinking and memory tests, and brain imaging (MRI scan), and collect various biological samples. Then, once a year for several years, you'll return for follow-up visits to repeat some of these tests and check whether anything has changed. Throughout the study, a family member or friend will be asked to help provide information about how you're doing. The whole process helps researchers track the natural course of memory and thinking changes in a large group of people.
AI-generated summary from trial data · Jun 10, 2026 · Not medical advice
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