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. 2024 Jul 30.
doi: 10.1007/s00392-024-02502-6. Online ahead of print.

Effects of high- versus low-intensity lipid-lowering treatment in patients undergoing serial coronary computed tomography angiography: results of the multi-center LOCATE study

Loris Weichsel  1   2 , Florian André  3   4   5 , Matthias Renker  6   7 , Philipp Breitbart  8 , Daniel Overhoff  9 , Meinrad Beer  10 , Alexander Giesen  1   2 , Borbála Vattay  11 , Sebastian Buss  5 , Mohamed Marwan  12 , Christopher L Schlett  13 , Andreas A Giannopoulos  14 , Sebastian Kelle  15   16 , Norbert Frey  3   4 , Grigorios Korosoglou  17   18 ; LOCATE Investigators
Collaborators, Affiliations

Effects of high- versus low-intensity lipid-lowering treatment in patients undergoing serial coronary computed tomography angiography: results of the multi-center LOCATE study

Loris Weichsel et al. Clin Res Cardiol. .

Abstract

Aim: To evaluate the effects of lipid-lowering medications of different intensities on total, calcified, and non-calcified plaque volumes in patients undergoing serial cardiac computed tomography angiography (CCTA).

Methods: Individuals with chronic coronary syndromes from 11 centers were included in a retrospective registry. Total, calcified, and non-calcified plaque volumes were quantified and the relative difference in plaque volumes between baseline and follow-up CCTA was calculated. The intensity of lipid-lowering treatment was designated as low, moderate, or high, based on current recommendations.

Results: Of 216 patients (mean age 63.1 ± 9.7 years), undergoing serial CCTA (median timespan = 824.5 [IQR = 463.0-1323.0] days), 89 (41.2%) received no or low-intensity lipid-lowering medications, and 80 (37.0%) and 47 (21.8%) moderate- and high-intensity lipid-lowering agents, respectively. Progression of total and non-calcified plaque was attenuated in patients on moderate-/high- versus those on no/low-intensity treatment and arrested in patients treated with high-intensity statins or PCSK9 inhibitors (p < 0.001). Halted increase of non-calcified plaque was associated with LDL-cholesterol reduction (p < 0.001), whereas calcified plaque mass and Agatston score increased irrespective of the lipid-lowering treatment (p = NS). The intensity of lipid-lowering therapy robustly predicted attenuation of non-calcified plaque progression as a function of the time duration between the two CCTA scans, and this was independent of age and cardiovascular risk factors (HR = 3.83, 95% CI = 1.81-8.05, p < 0.001).

Conclusion: The LOCATE multi-center observational study shows that progression of non-calcified plaques, which have been previously described as precursors of acute coronary syndromes, can be attenuated with moderate-intensity, and arrested with high-intensity lipid-lowering therapy.

German clinical trials register: DRKS00031954.

Keywords: Agatston score; Atherosclerosis; Coronary artery disease; Low/high intensity lipid-lowering treatment; Multi-center; Non-calcified plaque; Serial plaque quantification.

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