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National Alzheimer's Coordinating Center
National Alzheimer's Coordinating Center
The NIA Alzheimer’s Disease Research Centers Program
National Alzheimer’s Coordinating Center

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  • Next data freeze: September 2025
  • Most recent data freeze: June 2025
    The National Alzheimer’s Coordinating Center (NACC) functions as the centralized data repository, and collaboration and communication hub for the National Institute of Aging’s (NIA’s) Alzheimer’s Disease Research Centers (ADRC) Program, which currently includes 36 centers across the United States.
    NACC is home to one of the largest, oldest, and most powerful Alzheimer’s datasets, built in collaboration with more than 42 Alzheimer’s Disease Research Centers (ADRCs) throughout the US over the past 20+ years.
    We are on a mission to modernize data collection, integration, and sharing to advance Alzheimer’s research. All NACC data is freely available to researchers.
    About NACC UDS Data:

    54,000+ participants with data at NACC

    20,000+ active participants

    200,000+ clinical assessments

    1 - 20 per participant (median = 3)

    8,300+ neuropathology exams

    from 58% of deceased participants

    1,450+ published studies

    using NACC data

    36 ADRCs

    currently contributing data across 25 states

    Expanding participant enrollment

    NACC collects data from 36 active ADRCs across 24 states
    ADRC Map

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