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von Scheidt, M.* ; Eissa, T.* ; Krefting, J.* ; Friess, C.* ; Schwab, M.* ; Pugach, I.* ; Meyer, D.* ; Aschauer, J.* ; Chen, Z.* ; Hoermann, G.* ; Meggendorfer, M.* ; Bongiovanni, D.* ; Breucker, D.* ; Wenger, K.* ; Voll, F.* ; Graesser, C.* ; Kessler, T.* ; Sager, H.B.* ; Oldenbuettel, L.* ; Dressen, M.* ; Doppler, S.A.* ; Kameric, M.* ; Seeler, S.* ; Krane, M.* ; Maegdefessel, L.* ; Hecker, J.S.* ; Bassermann, F.* ; Sander, M.* ; Holdenrieder, S.* ; Hilgendorf, I.* ; Leuschner, F.* ; Adkar, S.S.* ; Miller, C.L.* ; Kaikkonen, M.U.* ; Mokry, M.* ; Pasterkamp, G.* ; Natarajan, P.* ; Fuster, J.J.* ; Bick, A.G.* ; Heimlich, J.B.* ; Rieger, M.A.* ; Cremer, S.* ; Dimmeler, S.* ; Zeiher, A.M.* ; Abplanalp, W.T.* ; Bjorkegren, J.L.M.* ; Leeper, N.J.* ; Linkohr, B. ; Peters, A. ; Kastrati, A.* ; Cassese, S.* ; Koenig, W.* ; Fleischmann, F.* ; Schunkert, H.* ; Zigman, M.*

Plasma infrared molecular fingerprinting stratifies residual risk in coronary artery disease and reflects clonal haematopoiesis-associated biology.

Eur. Heart J.:ehag587 (2026)

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Background and Aims Residual cardiovascular risk remains substantial in patients with coronary artery disease (CAD) despite optimal secondary prevention. Clonal haematopoiesis of indeterminate potential (CHIP) contributes causally to this risk but requires sequencing for detection. Plasma infrared molecular fingerprinting (IMF), a spectroscopy-based assay, was evaluated as a sequencing-free tool for residual risk stratification and CHIP-aligned phenotyping. Methods The discovery cohort included 1341 patients with angiographically confirmed CAD (mean age 73 years, 76% male) followed for up to 10.7 years. Plasma IMF spectra, comprehensive clinical data, and targeted sequencing of 13 CHIP driver genes were measured. Penalized Cox models using IMF features were benchmarked against the guideline-recommended SMART2 score. Model performance was assessed by discrimination, reclassification, calibration, and decision curve analyses. External validation was performed in three independent cohorts (PRECAD2, 474 individuals; KORA, 3044 individuals; Lasers4Life, 2123 individuals). Results IMF+Age demonstrated superior mortality discrimination over SMART2 (C-index 0.79 vs 0.74, P < .01) and significant reclassification improvement. Decision curves showed greater net benefit across clinical thresholds. IMF-derived risk strata showed clear separation of Kaplan-Meier survival curves (log-rank P < .001), with mortality increasing from 3% (low-risk) to 27% (high-risk). Higher-risk strata were enriched for CHIP carriers, particularly spliceosome mutations. External validation reproduced expected risk patterns and comorbidity associations. Conclusions Plasma IMF provides rapid, low-cost, sequencing-free assessment of residual mortality risk in CAD, outperforming guideline-based scores while reflecting CHIP-associated biology. IMF offers a scalable phenotypic platform for precision secondary prevention and biology-guided trial design.

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Publication type Article: Journal article

Document type Scientific Article

Keywords Clonal haematopoiesis; Coronary artery disease; Infrared molecular fingerprinting; Spectroscopic profiling; Risk stratification; Precision cardiovascular prevention; Atherosclerosis; Curve

ISSN (print) / ISBN 0195-668X

e-ISSN 1522-9645

Journal European Heart Journal

Quellenangaben Article Number: ehag587

Publisher Oxford University Press

Publishing Place Great Clarendon St, Oxford Ox2 6dp, England

Reviewing status Peer reviewed

Institute(s) Institute of Epidemiology (EPI)

Grants DZG Innovation fund
AMP
FNIH
Deutsches Herzzentrum Mnchen and Munich School of Robotics and Machine Learning
Bavarian State Ministry of Health and Care
Joint Research Center
Swedish Research Council
National Institutes of Health
German Federal Ministry of Education and Research
LMU Munich Centre for Advanced Laser Applications
Fondation Leducq
Bavarian State Ministry of Science and the Arts
German Heart Foundation
CMD
Swedish Heart Lung Foundation