Further Lipid-Lowering With PCSK9 Inhibitors for Cardiovascular Outcomes in High-Risk Coronary Plaques Assessed by CT Angiography
FLAVOUR IV
1 other identifier
interventional
3,596
2 countries
6
Brief Summary
The primary objective was to evaluate the effect of PCSK9 inhibitors in addition to the background lipid-modifying therapy (LMT), compared with standard LMT in terms of clinical outcomes in patients with coronary CT angiography (CCTA)-detected high-risk plaques.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable coronary-artery-disease
Started Apr 2025
Longer than P75 for not_applicable coronary-artery-disease
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 3, 2025
CompletedFirst Posted
Study publicly available on registry
March 7, 2025
CompletedStudy Start
First participant enrolled
April 22, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2033
February 6, 2026
February 1, 2026
4.9 years
March 3, 2025
February 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Major adverse cardiac and cerebrovascular events (MACCEs)
A composite of death from any cause, myocardial infarction (MI), coronary revascularization, or stroke.
24 months after the last patient's randomization
Secondary Outcomes (10)
MACCEs
60 months after the last patient's randomization
Individual component of MACCEs.
24 and 60 months after the last patient's randomization
Major adverse cardiovascular events (MACEs)
24 and 60 months after the last patient's randomization
Target vessel failure (TVF)
24 and 60 months after the last patient's randomization
Cost-effectiveness analysis
24 and 60 months after the last patient's randomization
- +5 more secondary outcomes
Study Arms (2)
PCSK9 inhibitors plus background lipid-modifying therapy
EXPERIMENTALPatients will receive PCSK9 inhibitors treatment and background lipid-modifying therapy for the first 12 months after randomization, and then continue background lipid-modifying therapy for the remainder of the trial.
Standard lipid-modifying therapy
ACTIVE COMPARATORPatients will receive standard LMT commonly used in clinical practice.
Interventions
Patients will receive subcutaneous injections of PCSK9 inhibitors and oral administration of background LMT (including statins and/or cholesterol absorption inhibitors) for the first 12 months after randomization, with PCSK9 inhibitors administered every 2 weeks. After the first 12 months, patients will discontinue the PCSK9 inhibitors but continue background LMT for the remainder of the trial.
Patients will receive standard LMT commonly used in clinical practice.
Eligibility Criteria
You may qualify if:
- Subject must be ≥ 18 years.
- Patients with at least one target lesion meet CCTA-detected plaque features of the following:
- Degree of stenosis ≥ 50% or plaque burden ≥ 70%
- At least 2 of the following high-risk plaque features:
- i. Low-attenuation plaque ii. Positive remodeling iii. Napkin-ring sign iv. Spotty calcium
- The target lesion is located at the proximal or mid segment of left anterior descending artery, left circumflex artery or right coronary artery.
- Subject is able to confirm his/her understanding of the risks, benefits, and treatment alternatives of receiving study-related treatment. He/she or his/her legally authorized representative provides written informed consent prior to any study-related procedure.
You may not qualify if:
- Target lesions underwent or planned to revascularization.
- Patients with acute coronary syndrome.
- New York Heart Association class III or IV, or last known left ventricular ejection fraction \< 30%.
- Uncontrolled or recurrent ventricular tachycardia.
- Homozygous familial hypercholesterolemia.
- Active liver disease or hepatic dysfunction.
- Failed CCTA plaque analysis.
- Non-cardiac co-morbid conditions with life expectancy \< 2 years.
- Pregnant and/or lactating women.
- Known hypersensitivity or contraindication to statin or PCSK9 inhibitors.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Zhejiang Provincial Hospital of Traditional Chinese Medicine
Hangzhou, Zhejiang, China
Hangzhou Linping First People's Hospital
Hangzhou, China
The Second Affiliated Hospital, School of Medicine, Zhejiang University
Hangzhou, China
Zhejiang Hospital
Hangzhou, China
Jinhua Central Hospital
Jinhua, China
Seoul National University Hospital
Seoul, South Korea
Related Publications (14)
Iatan I, Guan M, Humphries KH, Yeoh E, Mancini GBJ. Atherosclerotic Coronary Plaque Regression and Risk of Adverse Cardiovascular Events: A Systematic Review and Updated Meta-Regression Analysis. JAMA Cardiol. 2023 Oct 1;8(10):937-945. doi: 10.1001/jamacardio.2023.2731.
PMID: 37647074BACKGROUNDNicholls SJ, Puri R, Anderson T, Ballantyne CM, Cho L, Kastelein JJ, Koenig W, Somaratne R, Kassahun H, Yang J, Wasserman SM, Scott R, Ungi I, Podolec J, Ophuis AO, Cornel JH, Borgman M, Brennan DM, Nissen SE. Effect of Evolocumab on Progression of Coronary Disease in Statin-Treated Patients: The GLAGOV Randomized Clinical Trial. JAMA. 2016 Dec 13;316(22):2373-2384. doi: 10.1001/jama.2016.16951.
PMID: 27846344BACKGROUNDRaber L, Ueki Y, Otsuka T, Losdat S, Haner JD, Lonborg J, Fahrni G, Iglesias JF, van Geuns RJ, Ondracek AS, Radu Juul Jensen MD, Zanchin C, Stortecky S, Spirk D, Siontis GCM, Saleh L, Matter CM, Daemen J, Mach F, Heg D, Windecker S, Engstrom T, Lang IM, Koskinas KC; PACMAN-AMI collaborators. Effect of Alirocumab Added to High-Intensity Statin Therapy on Coronary Atherosclerosis in Patients With Acute Myocardial Infarction: The PACMAN-AMI Randomized Clinical Trial. JAMA. 2022 May 10;327(18):1771-1781. doi: 10.1001/jama.2022.5218.
PMID: 35368058BACKGROUNDSabatine MS, Giugliano RP, Keech AC, Honarpour N, Wiviott SD, Murphy SA, Kuder JF, Wang H, Liu T, Wasserman SM, Sever PS, Pedersen TR; FOURIER Steering Committee and Investigators. Evolocumab and Clinical Outcomes in Patients with Cardiovascular Disease. N Engl J Med. 2017 May 4;376(18):1713-1722. doi: 10.1056/NEJMoa1615664. Epub 2017 Mar 17.
PMID: 28304224BACKGROUNDSchwartz GG, Steg PG, Szarek M, Bhatt DL, Bittner VA, Diaz R, Edelberg JM, Goodman SG, Hanotin C, Harrington RA, Jukema JW, Lecorps G, Mahaffey KW, Moryusef A, Pordy R, Quintero K, Roe MT, Sasiela WJ, Tamby JF, Tricoci P, White HD, Zeiher AM; ODYSSEY OUTCOMES Committees and Investigators. Alirocumab and Cardiovascular Outcomes after Acute Coronary Syndrome. N Engl J Med. 2018 Nov 29;379(22):2097-2107. doi: 10.1056/NEJMoa1801174. Epub 2018 Nov 7.
PMID: 30403574BACKGROUNDVrints C, Andreotti F, Koskinas KC, Rossello X, Adamo M, Ainslie J, Banning AP, Budaj A, Buechel RR, Chiariello GA, Chieffo A, Christodorescu RM, Deaton C, Doenst T, Jones HW, Kunadian V, Mehilli J, Milojevic M, Piek JJ, Pugliese F, Rubboli A, Semb AG, Senior R, Ten Berg JM, Van Belle E, Van Craenenbroeck EM, Vidal-Perez R, Winther S; ESC Scientific Document Group. 2024 ESC Guidelines for the management of chronic coronary syndromes. Eur Heart J. 2024 Sep 29;45(36):3415-3537. doi: 10.1093/eurheartj/ehae177. No abstract available.
PMID: 39210710BACKGROUNDVirani SS, Newby LK, Arnold SV, Bittner V, Brewer LC, Demeter SH, Dixon DL, Fearon WF, Hess B, Johnson HM, Kazi DS, Kolte D, Kumbhani DJ, LoFaso J, Mahtta D, Mark DB, Minissian M, Navar AM, Patel AR, Piano MR, Rodriguez F, Talbot AW, Taqueti VR, Thomas RJ, van Diepen S, Wiggins B, Williams MS; Peer Review Committee Members. 2023 AHA/ACC/ACCP/ASPC/NLA/PCNA Guideline for the Management of Patients With Chronic Coronary Disease: A Report of the American Heart Association/American College of Cardiology Joint Committee on Clinical Practice Guidelines. Circulation. 2023 Aug 29;148(9):e9-e119. doi: 10.1161/CIR.0000000000001168. Epub 2023 Jul 20.
PMID: 37471501BACKGROUNDYang S, Hoshino M, Yonetsu T, Zhang J, Hwang D, Shin ES, Doh JH, Nam CW, Wang J, Chen S, Tanaka N, Matsuo H, Kubo T, Chang HJ, Kakuta T, Koo BK. Outcomes of non-ischaemic coronary lesions with high-risk plaque characteristics on coronary CT angiography. EuroIntervention. 2023 Jan 23;18(12):1011-1021. doi: 10.4244/EIJ-D-22-00562.
PMID: 36222756BACKGROUNDLee JM, Choi KH, Koo BK, Park J, Kim J, Hwang D, Rhee TM, Kim HY, Jung HW, Kim KJ, Yoshiaki K, Shin ES, Doh JH, Chang HJ, Cho YK, Yoon HJ, Nam CW, Hur SH, Wang J, Chen S, Kuramitsu S, Tanaka N, Matsuo H, Akasaka T. Prognostic Implications of Plaque Characteristics and Stenosis Severity in Patients With Coronary Artery Disease. J Am Coll Cardiol. 2019 May 21;73(19):2413-2424. doi: 10.1016/j.jacc.2019.02.060.
PMID: 31097161BACKGROUNDFerencik M, Mayrhofer T, Bittner DO, Emami H, Puchner SB, Lu MT, Meyersohn NM, Ivanov AV, Adami EC, Patel MR, Mark DB, Udelson JE, Lee KL, Douglas PS, Hoffmann U. Use of High-Risk Coronary Atherosclerotic Plaque Detection for Risk Stratification of Patients With Stable Chest Pain: A Secondary Analysis of the PROMISE Randomized Clinical Trial. JAMA Cardiol. 2018 Feb 1;3(2):144-152. doi: 10.1001/jamacardio.2017.4973.
PMID: 29322167BACKGROUNDWilliams MC, Moss AJ, Dweck M, Adamson PD, Alam S, Hunter A, Shah ASV, Pawade T, Weir-McCall JR, Roditi G, van Beek EJR, Newby DE, Nicol ED. Coronary Artery Plaque Characteristics Associated With Adverse Outcomes in the SCOT-HEART Study. J Am Coll Cardiol. 2019 Jan 29;73(3):291-301. doi: 10.1016/j.jacc.2018.10.066.
PMID: 30678759BACKGROUNDSCOT-HEART Investigators; Newby DE, Adamson PD, Berry C, Boon NA, Dweck MR, Flather M, Forbes J, Hunter A, Lewis S, MacLean S, Mills NL, Norrie J, Roditi G, Shah ASV, Timmis AD, van Beek EJR, Williams MC. Coronary CT Angiography and 5-Year Risk of Myocardial Infarction. N Engl J Med. 2018 Sep 6;379(10):924-933. doi: 10.1056/NEJMoa1805971. Epub 2018 Aug 25.
PMID: 30145934BACKGROUNDVirmani R, Burke AP, Kolodgie FD, Farb A. Pathology of the thin-cap fibroatheroma: a type of vulnerable plaque. J Interv Cardiol. 2003 Jun;16(3):267-72. doi: 10.1034/j.1600-0854.2003.8042.x.
PMID: 12800406BACKGROUNDKoo BK, Hu X, Kang J, Zhang J, Jiang J, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Lee JM, Hwang D, Ki YJ, Shin ES, Kim HS, Tahk SJ, Wang J; FLAVOUR Investigators. Fractional Flow Reserve or Intravascular Ultrasonography to Guide PCI. N Engl J Med. 2022 Sep 1;387(9):779-789. doi: 10.1056/NEJMoa2201546.
PMID: 36053504BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Xinyang Hu
Second Affiliated Hospital, School of Medicine, Zhejiang University
- PRINCIPAL INVESTIGATOR
Bon-Kwon Koo
Seoul National University Hospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 3, 2025
First Posted
March 7, 2025
Study Start
April 22, 2025
Primary Completion (Estimated)
April 1, 2030
Study Completion (Estimated)
April 1, 2033
Last Updated
February 6, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Data will be available within 12 months of study completion.
- Access Criteria
- Data access requests will be reviewed by an external Independent Review Panel. Requestors will be required to sign a Data Access Agreement.
The deidentified data will be shared after publication of first manuscript.