Mar 4, 2023 / Nov 16, 2024

YELLOW III

Effect of Evolocumab on Coronary Plaque Characteristics

Study Overview

This study aims to evaluate the impact of evolocumab on coronary plaque characteristics in patients with stable coronary artery disease (CAD) already on maximally tolerated statin therapy. Using intravascular imaging and PBMC gene expression analysis, the research integrates imaging techniques with machine learning-based transcriptomic analysis to identify molecular mechanisms driving beneficial changes in atherosclerotic plaques. The primary endpoints include changes in minimal fibrous cap thickness (FCT) measured by optical coherence tomography (OCT) and maxLCBI4mm assessed by near-infrared spectroscopy (NIRS) over 26 weeks of treatment. Secondary endpoints involve changes in lipid and macrophage-related plaque features assessed by OCT, plaque volume changes by intravascular ultrasound (IVUS), and PBMC gene expression profiles.

Part 1 – Imaging

Part 2 – Transcriptomic

Part 2 – Transcriptomic

Yellow III Transcriptomic Results Presentation

Publications

Peer-reviewed papers from the YELLOW III trial, led by Annapoorna S. Kini, MD.

Primary results · JACC: Cardiovascular Imaging · 2026

Intracoronary Imaging and Transcriptomic Characteristics Before and After Maximum Lipid-Lowering Therapy: YELLOW-III Study of Evolocumab and Maximum Statin Therapy in Chronic Coronary Disease

Kini AS, Vengrenyuk Y, Liu J, et al.

JACC Cardiovasc Imaging. 2026;19(4):516-534. doi:10.1016/j.jcmg.2025.12.013

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Substudy · European Heart Journal – Imaging Methods and Practice · 2026

Intra-coronary imaging and transcriptomics of calcified nodules before and after intensive lipid-lowering therapy: a YELLOW III substudy

Revaiah PC, Vengrenyuk Y, Liu J, … Kini AS.

Eur Heart J Imaging Methods Pract. 2026;4(1):qyag092. doi:10.1093/ehjimp/qyag092

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Substudy · Atherosclerosis · 2026

Serial OCT-based coronary physiology and plaque composition in vessels with nonobstructive coronary lesions following intensive lipid-lowering therapy: YELLOW III sub-study

Revaiah PC, Vengrenyuk Y, Santosh VK, … Kini AS.

Atherosclerosis. 2026;419:120836. doi:10.1016/j.atherosclerosis.2026.120836

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Post hoc analysis · International Journal of Cardiovascular Imaging · 2026

Sex differences in coronary plaque stabilization with evolocumab: a post hoc analysis of the YELLOW III trial

Yasumura K, Goldman S, Vengrenyuk Y, … Kini AS.

Int J Cardiovasc Imaging. 2026 Sep 5. Online ahead of print. doi:10.1007/s10554-026-03824-4

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Case report · JACC: Case Reports · 2026

The "Melting Butter Sign" of Coronary Plaque Delipidation: Insights From the YELLOW III Trial

Yasumura K, Vengrenyuk Y, Revaiah PC, … Kini AS.

JACC Case Rep. 2026;110611. In press. doi:10.1016/j.jaccas.2026.110611

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Substudy · Cardiovascular Drugs and Therapy · 2026

Impact of Diabetes on Coronary Plaque Stabilization With Evolocumab: Insights From the YELLOW III Trial

Yasumura K, Vengrenyuk Y, Liu J, … Kini AS.

Cardiovasc Drugs Ther. 2026 Sep 24. Online ahead of print. doi:10.1007/s10557-026-07962-8

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News & Media

Beyond the Data: YELLOW III: PCSK9 Inhibitors and Plaque Characterization

TCTMD – March 5, 2023

Clues to Evolocumab Response Exist in Patients’ Genes: YELLOW III

TCTMD – November 21, 2024

Stable CAD Plaque Morphology Improved by PCSK9 Inhibitors: YELLOW III

TCTMD – March 04, 2023

YELLOW III Study Improves Understanding of Evolocumab in CAD Treatment

HCPLive – March 05, 2023

ACC 23: Effect of Evolocumab on Coronary Plaque Morphology: The YELLOW III Study

​ICRJournal – March 05 2023

Annapoorna Kini, ACC 2023: PCSK9 inhibitors for acute coronary syndrome

Touch Cardio – March 30 2023

Imaging data may predict best responders to evolocumab therapy: YELLOW III

Healio – March 04, 2023

Yellow III Trial Finds That Lipid Lowering With a PCSK9 Inhibitor Could Benefit Heart Patients on Statin Therapy

Mount Sinai – April 07, 2023

Conference Abstracts

Research presented at scientific meetings from the YELLOW III trial.

Moderated poster · ACC.26 · Mar 28, 2026

Physiological Changes in Non-Obstructive Coronary Lesions Before and After Maximal Lipid-Lowering Therapy Using AI-Based Optical Flow Ratio: Insights From the YELLOW III Study

Chenniganahosahalli P, Vengrenyuk Y, Yasumura K, … Kini AS.

J Am Coll Cardiol. 2026;87(13 Suppl). doi:10.1016/j.jacc.2026.02.2173

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Poster · ACC.26 · Mar 29, 2026

AI-Based Angiography-Derived Radial Wall Strain in Non-Obstructive Coronary Lesions Before and After Maximal Lipid-Lowering Therapy: Insights From the YELLOW III Study

Chenniganahosahalli P, Vengrenyuk Y, Vemuri K, … Kini AS.

J Am Coll Cardiol. 2026;87(13 Suppl):A881. doi:10.1016/j.jacc.2026.02.2175

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Poster · ACC.26 · Mar 29, 2026

Impact of Maximal Lipid-Lowering Therapy on the Physiological Disease Pattern Using AI-Based Virtual µFR Pullback Curve: Insights From the YELLOW III Study

Chenniganahosahalli P, Vengrenyuk Y, Yasumura K, … Kini AS.

J Am Coll Cardiol. 2026;87(13 Suppl). doi:10.1016/j.jacc.2026.02.2176

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Poster · ACC.26 · Mar 29, 2026

Intracoronary Imaging Insights Into the Morphology of Calcified Nodules Before and After Maximal Lipid-Lowering Therapy: A Substudy of YELLOW III

Chenniganahosahalli P, Vengrenyuk Y, Yasumura K, … Kini AS.

J Am Coll Cardiol. 2026;87(13 Suppl). doi:10.1016/j.jacc.2026.02.2177

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