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searchMECFS: An online, interactive platform to facilitate secondary use of biospecimens and associated research data from myalgic encephalomyelitis studies
Barnette, Q. L., LeGrow, K. H., Ham, M. W., Illei, D., Giamberardino, S., Carnes, M. U., & Brown, L. M. (2026). searchMECFS: An online, interactive platform to facilitate secondary use of biospecimens and associated research data from myalgic encephalomyelitis studies. RTI Press. RTI Press Methods Report No. MR-0058-2609 https://doi.org/10.3768/rtipress.2026.mr.0058.2609
Impact statement: This paper presents a solution to a pervasive problem in the ME/CFS research field: underutilization of biospecimens collected for ME/CFS research. A free online tool for researchers to access samples at two different biorepositories can advance basic research into the mechanisms of ME/CFS and other post-infectious chronic diseases.
The platform brings together data from more than 1,200 people across multiple studies, allowing researchers to identify samples that match specific research questions without collecting new specimens.
One study using samples identified through searchMECFS found evidence that factors in the blood of people with ME/CFS may disrupt circadian rhythms, demonstrating the platform’s value for advancing new discoveries.
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex, debilitating disease affecting multiple body systems, with no established biomarkers for diagnosis or treatment. This publication introduces searchMECFS, a free, interactive online platform developed by the Data Management and Coordinating Center of the ME/CFS Research Network, with funding from the National Institutes of Health. The platform’s purpose is to facilitate the secondary use of biospecimens and associated research data from ME/CFS clinical studies by improving accessibility, visibility, and sharing of these resources. Currently, searchMECFS facilitates access to biospecimens and associated data from two studies: The Chronic Fatigue Initiative study, funded by the Hutchins Family Foundation, and the Multi-Site Clinical Assessment of ME/CFS study, funded by the Centers for Disease Control and Prevention. Users can query participant demographics and clinical information and request available biospecimens through an application process. Eight specimen types are currently available, though availability varies by study. The results highlight a case where a researcher used the searchMECFS platform to identify 40 serum samples, which contributed to published research on circadian rhythm disruption in ME/CFS. searchMECFS aims to accelerate scientific discovery within the ME/CFS research community by improving biospecimen utilization, fostering data sharing, and supporting collaboration.
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