{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"medRxiv"}],"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T09:27:09Z","timestamp":1788514029817,"version":"build-2803163510"},"posted":{"date-parts":[[2025,10,2]]},"group-title":"Neurology","reference-count":46,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T00:00:00Z","timestamp":1759363200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2025,10,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                <jats:p>As novel amyloid-\u03b2 targeted therapies emerge, plasma biomarkers have promising potential to serve as screening tools and as surrogate measures for treatment outcomes. Understanding longitudinal trajectories of these biomarkers and how their changes relate to changes in AD pathology and cognition is needed to help track treatment response and guide patient care. We analyzed data from 394 individuals in the ADNI-FNIH dataset who had plasma biomarkers available across 14 assays, A\u03b2-PET scans and cognitive assessments over a 10-year period. Plasma p-tau217, regardless of the assay used, had the greatest rate of change over time. This increase was related to concurrent increase in A\u03b2-PET burden only in individuals with low levels of A\u03b2. The rate of p-tau217 change, rather than its baseline level, was the strongest predictor of future A\u03b2-PET positivity. On the other hand, in individuals with elevated levels of A\u03b2, higher rate of change in p-tau217 was associated with faster cognitive decline. These findings highlight a \u201cdual\u201d role of plasma p-tau217 rate of change, being either predictive of accumulating A\u03b2 pathology at early stages and of cognitive decline at later stages of the AD continuum.<\/jats:p>","DOI":"10.1101\/2025.09.30.25337003","type":"posted-content","created":{"date-parts":[[2025,10,2]],"date-time":"2025-10-02T19:30:15Z","timestamp":1759433415000},"source":"Crossref","is-referenced-by-count":1,"title":["Trajectories of plasma biomarkers, amyloid-beta burden and cognitive decline in Alzheimer\u2019s disease: A Longitudinal ADNI Study"],"prefix":"10.64898","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4769-7162","authenticated-orcid":false,"given":"Yara","family":"Yakoub","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-8209-4424","authenticated-orcid":false,"given":"Ting","family":"Qiu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cl\u00e9mence","family":"Peyrot","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5210-9230","authenticated-orcid":false,"given":"Gemma","family":"Salvad\u00f3","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2338-0467","authenticated-orcid":false,"given":"Sylvia","family":"Villeneuve","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5218-3337","authenticated-orcid":false,"given":"Alexa Pichet","family":"Binette","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"Alzheimer\u2019s Disease Neuroimaging Initiative (ADNI)","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"54368","reference":[{"key":"2025100420300968000_2025.09.30.25337003v1.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.lanhl.2024.07.013"},{"key":"2025100420300968000_2025.09.30.25337003v1.2","doi-asserted-by":"publisher","DOI":"10.1002\/alz.70535"},{"key":"2025100420300968000_2025.09.30.25337003v1.3","doi-asserted-by":"publisher","DOI":"10.1038\/s41582-024-00977-5"},{"key":"2025100420300968000_2025.09.30.25337003v1.4","doi-asserted-by":"publisher","DOI":"10.1038\/s41591-024-02869-z"},{"key":"2025100420300968000_2025.09.30.25337003v1.5","doi-asserted-by":"publisher","DOI":"10.15252\/emmm.202217123"},{"key":"2025100420300968000_2025.09.30.25337003v1.6","doi-asserted-by":"publisher","DOI":"10.1038\/s41591-025-03622-w"},{"key":"2025100420300968000_2025.09.30.25337003v1.7","doi-asserted-by":"publisher","DOI":"10.15252\/emmm.202114022"},{"key":"2025100420300968000_2025.09.30.25337003v1.8","doi-asserted-by":"publisher","DOI":"10.1002\/alz.14508"},{"key":"2025100420300968000_2025.09.30.25337003v1.9","doi-asserted-by":"publisher","DOI":"10.1002\/alz.14315"},{"key":"2025100420300968000_2025.09.30.25337003v1.10","doi-asserted-by":"publisher","DOI":"10.1016\/j.ebiom.2024.105405"},{"key":"2025100420300968000_2025.09.30.25337003v1.11","doi-asserted-by":"publisher","DOI":"10.1038\/s43587-025-00835-z"},{"key":"2025100420300968000_2025.09.30.25337003v1.12","doi-asserted-by":"publisher","DOI":"10.1002\/alz.14537"},{"key":"2025100420300968000_2025.09.30.25337003v1.13","doi-asserted-by":"publisher","DOI":"10.1038\/s41591-022-02074-w"},{"key":"2025100420300968000_2025.09.30.25337003v1.14","doi-asserted-by":"publisher","DOI":"10.1007\/s00401-021-02275-6"},{"key":"2025100420300968000_2025.09.30.25337003v1.15","doi-asserted-by":"publisher","DOI":"10.1002\/ana.26308"},{"key":"2025100420300968000_2025.09.30.25337003v1.16","unstructured":"Su\u00e1rez-Calvet M , Karikari TK , Ashton NJ , et al. Novel tau biomarkers phosphorylated at T181, T217 or T231 rise in the initial stages of the preclinical Alzheimer\u2019s continuum when only subtle changes in A\u03b2 pathology are detected. 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