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Updated June 2026 · ClinicalTrials.gov

RECRUITINGPhase 4INTERVENTIONAL

Effect of PCSK9 Inhibitors on Coronary Atherosclerotic Plaques Derived From Optical Coherence Tomography

Effect of PCSK9 Inhibitors on Coronary Atherosclerotic Plaques Derived From Optical Coherence Tomography in Patients With Premature Coronary Artery Disease: a Randomized Controlled Trial

Effect of PCSK9 Inhibitors on Coronary Atherosclerotic Plaques Derived From Optical Coherence Tomography (NCT06520904) is a Phase 4 interventional studying Coronary Artery Disease and Optical Coherence Tomography, sponsored by First Affiliated Hospital of Xinjiang Medical University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The presence of coronary atherosclerotic vulnerable plaque significantly impacts the clinical outcomes of patients diagnosed with coronary artery disease (CAD). However, the influence of PCSK9 inhibitors on stabilizing coronary atherosclerotic plaques in individuals with early-onset CAD, evaluated through optical coherence tomography (OCT), remains inadequately understood. Moreover, there is a notable absence of relevant randomized controlled trials investigating this phenomenon. This current study represents a single-center, randomized, controlled, open-label trial conducted among Asian patients with early-onset CAD. Its principal objective was to explore the effects of PCSK9 inhibitors on coronary atherosclerotic plaque morphology as assessed by OCT.

What Stage of Research Is This?

Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

A target enrollment of 396 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Who May Qualify: - Men aged 18-55 years and women aged 18-65 years; - CAD patients with coronary angiographically confirmed lesions in ≥2 vessels; at least one vessel was critically diseased (50-70% stenosis level); - LDL-C \>3.4 mmol/L without regular statin therapy or LDL-C \>1.8 mmol/L after 4 weeks of statin lipid-lowering therapy. Who Should NOT Join This Trial: - Known allergies or contraindications to PCSK9 inhibitors and/or statin therapy; - Prior use of PCSK9 inhibitors; - Prior history of hemorrhagic stroke; - Prior coronary artery bypass grafting or coronary intervention; - Inability to perform OCT imaging or unclear imaging; - Severe renal insufficiency (creatinine clearance \< 30 mL/min); - Severe hepatic dysfunction; - Baseline triglycerides \> 5.6 mmol/L; - Pregnant or lactating women; - Life expectancy not exceeding 1 year; - In the judgment of the investigator, unsuitable for this study for any reason. Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: * Men aged 18-55 years and women aged 18-65 years; * CAD patients with coronary angiographically confirmed lesions in ≥2 vessels; at least one vessel was critically diseased (50-70% stenosis level); * LDL-C \>3.4 mmol/L without regular statin therapy or LDL-C \>1.8 mmol/L after 4 weeks of statin lipid-lowering therapy. Exclusion Criteria: * Known allergies or contraindications to PCSK9 inhibitors and/or statin therapy; * Prior use of PCSK9 inhibitors; * Prior history of hemorrhagic stroke; * Prior coronary artery bypass grafting or coronary intervention; * Inability to perform OCT imaging or unclear imaging; * Severe renal insufficiency (creatinine clearance \< 30 mL/min); * Severe hepatic dysfunction; * Baseline triglycerides \> 5.6 mmol/L; * Pregnant or lactating women; * Life expectancy not exceeding 1 year; * In the judgment of the investigator, unsuitable for this study for any reason.

Treatments Being Tested

DRUG

PCSK9 inhibitor

PCSK9 inhibitors combined with moderate-intensity statin therapy

DRUG

Statin

Intensive statin therapy

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

First Affiliated Hospital of Xinjiang Medical University
Ürümqi, Xinjiang, China

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06520904), the sponsor (First Affiliated Hospital of Xinjiang Medical University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06520904 clinical trial studying?

The presence of coronary atherosclerotic vulnerable plaque significantly impacts the clinical outcomes of patients diagnosed with coronary artery disease (CAD). However, the influence of PCSK9 inhibitors on stabilizing coronary atherosclerotic plaques in individuals with early-onset CAD, evaluated through optical coherence tomography (OCT), remains inadequately understood. Moreover, there is a notable absence of relevant randomized controlled trials investigating this phenomenon. This current study represents a single-center, randomized, controlled, open-label trial conducted among Asian patie… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06520904?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06520904?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06520904. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06520904. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-06-07 · Data from ClinicalTrials.gov.