stacked_line_chartAccess DatapersonADRC Portal Login
Freeze 73 – March 2026

Reference

National Alzheimer’s Coordinating Center (2026): Freeze 73 Quick Access Files. National Alzheimer’s Coordinating Center, [insert TBD DOI URL]. 

Details

Freeze: 73 (March 2026) 

DOI: [TBD] 

  • Freeze 73 contains all data from Alzheimer’s Disease Research Centers (ADRCs) submitted and finalized by March 1, 2026. 

  • Description: The NACC Data Freeze is a formally versioned quarterly snapshot of the NACC research database that is prepared for standardized reporting, analysis, and external data sharing. The Quick Access Files are generated from the data freeze. The Quick Access Files contain participant-level data, including clinical assessments, diagnoses, cognitive testing, imaging, and neuropathology. 

  • Access: To access the Quick Access Files, please submit a data request for review by the Data Use Committee. 

Available Files: 

NAME 

DESCRIPTION

ACCESS RESTRICTIONS

investigator_nacc73.csv 

Uniform Data Set (UDS) + Neuropathology + Genetics data 

Data Use Committee approval required, non-commercial use 

investigator_ftldlbd_nacc73.csv 

Uniform Data Set (UDS) + Neuropathology + Genetics + FTLD Module + LBD module data 

Data Use Committee approval required, non-commercial use 

investigator_cls_nacc73.csv 

Linguistic History (CLS) Form data 

Data Use Committee approval required, non-commercial use 

investigator_covid_nacc73.csv 

COVID Form data 

Data Use Committee approval required, non-commercial use 

investigator_fcsf_nacc73.csv 

Cerebrospinal Fluid (CSF) data 

Data Use Committee approval required, non-commercial use 

investigator_mds_nacc73.csv 

Minimum Data Set (MDS) data 

Data Use Committee approval required, non-commercial use 

investigator_mri_nacc73.csv 

Mixed Protocol MRI analysis data 

Data Use Committee approval required, non-commercial use 

investigator_scan_mri_nacc73.zip 

SCAN MRI analysis data 

Data Use Committee approval required, non-commercial use 

investigator_scan_pet_nacc73.zip 

SCAN and Mixed Protocol MRI analysis data 

Data Use Committee approval required 

commercial_nacc73.csv 

Uniform Data Set (UDS) + Neuropathology + Genetics data, subset for commercial investigators 

Data Use Committee approval required 

commercial_ftldlbd_nacc73.csv 

Uniform Data Set (UDS) + Neuropathology + Genetics + FTLD Module + LBD module data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_cls_nacc73.csv 

Linguistic History (CLS) Form data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_covid_nacc73.csv 

COVID Form data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_fcsf_nacc73.csv 

Cerebrospinal Fluid (CSF) data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_mds_nacc73.csv 

Minimum Data Set (MDS) data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_mri_nacc73.csv 

Mixed Protocol MRI analysis data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_scan_mri_nacc73.zip 

SCAN MRI analysis data, , subset for commercial investigators 

Data Use Committee approval required 

commercial_scan_pet_nacc73.zip 

SCAN and Mixed Protocol MRI analysis data, , subset for commercial investigators 

Data Use Committee approval required