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Thrombin-antithrombin complex: biomarker evidence

Thrombin-antithrombin complex appears in 1 entry of the OSMF biomarker atlas, covering Long COVID. Across those entries it is elevated in 1. It is currently reported in a single condition in this atlas; cross-condition comparison will be added as the dataset grows. Each row below links to a page with the comparison group, associated symptoms, test details and primary citation.

Long COVID

Where Thrombin-antithrombin complex is reported

Also listed as: TAT

ConditionDirectionCompared againstAssociated symptomsSource
Long COVID↑ elevatedhealthy controlsCoagulation cascade activationThomas et al. 2024

Frequently asked questions

In which conditions is Thrombin-antithrombin complex altered?

In the OSMF atlas Thrombin-antithrombin complex is reported in Long COVID. It is elevated in 1 across 1 entries.

Is there a standard clinical test for Thrombin-antithrombin complex?

The atlas entries for Thrombin-antithrombin complex do not carry a LOINC code, which usually means the marker was measured with research assays or study-specific methods rather than a routine clinical panel.

Is one abnormal Thrombin-antithrombin complex result diagnostic?

No single biomarker result is diagnostic of any of these conditions. Findings reflect group averages from published cohorts with substantial overlap between patients and controls.

Cite this page

Open Source Medicine Foundation. (2026). Thrombin-antithrombin complex across conditions: biomarker evidence. OSMF Research Tracker. Retrieved October 7, 2026, from https://research.opensourcemed.info/biomarkers/markers/thrombin-antithrombin-complex.html
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Last reviewed: 2026-06-29 · Browse: Biomarker Index · All marker pages · Biomarker Atlas

Disclaimer: Educational synthesis of peer-reviewed research; not medical advice. Findings are group-level and vary with study design. Discuss any result with a qualified clinician.