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Early Intensive Lipid-Lowering With Inclisiran for Plaque Stabilization in Acute Coronary Syndrome (SEsiR-ACS)

28 augusti 2026 uppdaterad av: Chang-Hwan Yoon, Seoul National University Bundang Hospital

Statin, Ezetimibe, and Inclisiran for Plaque Regression in Acute Coronary Syndrome: A Randomized Controlled Trial (SEsiR-ACS Trial)

This multicenter, randomized, open-label clinical trial will evaluate whether an early intensive lipid-lowering strategy can improve coronary plaque stabilization in patients hospitalized with acute coronary syndrome. A total of 294 participants will be randomly assigned in a 1:1 ratio to either an early intensive treatment strategy with a high-intensity statin, ezetimibe, and inclisiran, or a guideline-based stepwise lipid-lowering strategy.

Coronary plaque characteristics will be assessed using optical coherence tomography (OCT) at baseline and at 12 months. The primary outcome is the change in minimal fibrous cap thickness from baseline to 12 months. Additional assessments will include other OCT-based plaque characteristics, lipid levels, safety outcomes, and, in a subset of participants, intravascular ultrasound measurements of plaque burden.

Studieöversikt

Studietyp

Interventionell

Inskrivning (Beräknad)

294

Fas

  • Fas 4

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

    • Gyeonggi-do
      • Seongnam-si, Gyeonggi-do, Sydkorea, 13620
        • Seoul National University Bundang Hospital
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  1. Age 19 to 85 years.
  2. Hospitalization for acute coronary syndrome (UA, NSTEMI, or STEMI) with planned coronary angiography and PCI, or PCI already performed during the index hospitalization with adequate baseline OCT images obtained during the procedure that meets the study imaging analysis criteria.
  3. Presence of a target vessel/segment considered by the investigator to be suitable for OCT assessment at baseline and at the 12-month follow-up.
  4. LDL-C level at screening meeting one of the following criteria according to background lipid-lowering therapy:

    i) ≥40 mg/dL in patients receiving stable combination therapy with a statin and ezetimibe, defined as no dose change for at least 4 weeks before screening; ii) ≥55 mg/dL in patients receiving high-intensity statin therapy; iii) ≥70 mg/dL in patients receiving low- or moderate-intensity statin therapy; or iv) ≥100 mg/dL in patients not receiving stable statin therapy.

  5. Provision of voluntary written informed consent after receiving sufficient information regarding the study objectives, procedures, and follow-up plan.

Exclusion Criteria:

  1. Severe hepatic dysfunction, defined as AST or ALT >3 times the upper limit of normal.
  2. CK >5 times the upper limit of normal or suspected clinically significant myopathy.
  3. Severe renal impairment, defined as eGFR <30 mL/min/1.73 m².
  4. Severe hypersensitivity to or contraindication to statins, ezetimibe, or inclisiran.
  5. Pregnancy, breastfeeding, or plans to become pregnant during the study period.
  6. Inability to undergo 12-month follow-up coronary angiography and OCT.
  7. Life expectancy <1 year or, in the investigator's judgment, inappropriate participation in the study because of concerns regarding adherence or safety.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Early Intensive Lipid-Lowering Strategy
Participants will receive an early intensive lipid-lowering strategy consisting of a high-intensity statin, ezetimibe 10 mg once daily, and inclisiran 284 mg by subcutaneous injection initiated during the index hospitalization or as early as feasible. Inclisiran will be repeated at 3 months and 9 months.
Inclisiran sodium 284 mg/1.5 mL will be administered by subcutaneous injection in the early intensive lipid-lowering group. Inclisiran will be initiated during the index hospitalization or as early as feasible thereafter, within 2 weeks, followed by additional doses at 3 months (±2 weeks) and 9 months (±2 weeks).
High-intensity statin therapy will consist of atorvastatin 40-80 mg orally once daily or rosuvastatin 20 mg orally once daily, or the maximally tolerated dose. High-intensity statin therapy will be initiated or continued during the index hospitalization in both treatment groups.
Ezetimibe 10 mg will be administered orally once daily. In the early intensive lipid-lowering group, ezetimibe will be initiated during the index hospitalization. In the guideline-based stepwise intensification group, ezetimibe will be added according to follow-up LDL-C levels if the treatment target is not achieved with high-intensity statin therapy.
Aktiv komparator: Guideline-Based Stepwise Intensification Strategy
Participants will receive a guideline-based stepwise lipid-lowering strategy. High-intensity statin therapy will be initiated or continued during the index hospitalization. Ezetimibe will be added according to follow-up LDL-C levels, and a PCSK9 inhibitor may be considered if the LDL-C target remains unmet.
High-intensity statin therapy will consist of atorvastatin 40-80 mg orally once daily or rosuvastatin 20 mg orally once daily, or the maximally tolerated dose. High-intensity statin therapy will be initiated or continued during the index hospitalization in both treatment groups.
Ezetimibe 10 mg will be administered orally once daily. In the early intensive lipid-lowering group, ezetimibe will be initiated during the index hospitalization. In the guideline-based stepwise intensification group, ezetimibe will be added according to follow-up LDL-C levels if the treatment target is not achieved with high-intensity statin therapy.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Minimal Fibrous Cap Thickness
Tidsram: Baseline to 12 months
Change from baseline to 12 months in minimal fibrous cap thickness (FCT), measured by optical coherence tomography (OCT) in one prespecified representative matched non-stented coronary plaque or segment per participant.
Baseline to 12 months

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in OCT-Derived Lipid Plaque Characteristics
Tidsram: Baseline to 12 months
Changes from baseline to 12 months in maximum lipid arc, mean lipid arc, lipid length, lipid index, and the prevalence of thin-cap fibroatheroma (TCFA), assessed by optical coherence tomography (OCT) in matched non-stented coronary plaque segments.
Baseline to 12 months
Change in Lipid Parameters and LDL-C Target Attainment
Tidsram: Baseline to 12 months
Absolute and percentage changes in LDL-C from baseline during follow-up, achievement of the prespecified LDL-C target, defined as LDL-C <40 mg/dL and a reduction of at least 50% from baseline, and changes in non-HDL-C, hsCRP, and, when available, ApoB and Lp(a).
Baseline to 12 months
Changes in IVUS-Derived Plaque Burden in the IVUS Substudy
Tidsram: Baseline to 12 months
Change from baseline to 12 months in percent atheroma volume (PAV), assessed by intravascular ultrasound (IVUS) in matched non-stented coronary segments. Additional IVUS assessments include changes in total atheroma volume (TAV) and plaque burden.
Baseline to 12 months

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Exploratory Clinical Events
Tidsram: Up to 12 months
Exploratory clinical events will include cardiovascular death, nonfatal myocardial infarction, nonfatal stroke, unplanned revascularization, and hospitalization. Event numbers and cumulative incidence rates will be assessed during follow-up.
Up to 12 months

Samarbetspartners och utredare

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Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 september 2026

Primärt slutförande (Beräknad)

1 september 2029

Avslutad studie (Beräknad)

1 september 2029

Studieregistreringsdatum

Först inskickad

28 augusti 2026

Först inskickad som uppfyllde QC-kriterierna

28 augusti 2026

Första postat (Faktisk)

2 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

2 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

28 augusti 2026

Senast verifierad

1 augusti 2026

Mer information

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