Cited by 1,665Lipoproteins and Cardiovascular HealthCholesterol and Lipid MetabolismLipid metabolism and disorders

Two Phase 3 Trials of Inclisiran in Patients with Elevated LDL Cholesterol

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Ray, Kausik K., Wright, R. Scott, Kallend, David, Koenig, Wolfgang, Leiter, Lawrence A., Raal, Frederick J., Bisch, Jenna A., Richardson, Tara +3 more·2020·New England Journal of Medicine

Abstract

BACKGROUND: Inclisiran inhibits hepatic synthesis of proprotein convertase subtilisin-kexin type 9. Previous studies suggest that inclisiran might provide sustained reductions in low-density lipoprotein (LDL) cholesterol levels with infrequent dosing. METHODS: We enrolled patients with atherosclerotic cardiovascular disease (ORION-10 trial) and patients with atherosclerotic cardiovascular disease or an atherosclerotic cardiovascular disease risk equivalent (ORION-11 trial) who had elevated LDL cholesterol levels despite receiving statin therapy at the maximum tolerated dose. Patients were randomly assigned in a 1:1 ratio to receive either inclisiran (284 mg) or placebo, administered by subcutaneous injection on day 1, day 90, and every 6 months thereafter over a period of 540 days. The coprimary end points in each trial were the placebo-corrected percentage change in LDL cholesterol level from baseline to day 510 and the time-adjusted percentage change in LDL cholesterol level from baseline after day 90 and up to day 540. RESULTS: A total of 1561 and 1617 patients underwent randomization in the ORION-10 and ORION-11 trials, respectively. Mean (±SD) LDL cholesterol levels at baseline were 104.7±38.3 mg per deciliter (2.71±0.99 mmol per liter) and 105.5±39.1 mg per deciliter (2.73±1.01 mmol per liter), respectively. At day 510, inclisiran reduced LDL cholesterol levels by 52.3% (95% confidence interval [CI], 48.8 to 55.7) in the ORION-10 trial and by 49.9% (95% CI, 46.6 to 53.1) in the ORION-11 trial, with corresponding time-adjusted reductions of 53.8% (95% CI, 51.3 to 56.2) and 49.2% (95% CI, 46.8 to 51.6) (P<0.001 for all comparisons vs. placebo). Adverse events were generally similar in the inclisiran and placebo groups in each trial, although injection-site adverse events were more frequent with inclisiran than with placebo (2.6% vs. 0.9% in the ORION-10 trial and 4.7% vs. 0.5% in the ORION-11 trial); such reactions were generally mild, and none were severe or persistent. CONCLUSIONS: Reductions in LDL cholesterol levels of approximately 50% were obtained with inclisiran, administered subcutaneously every 6 months. More injection-site adverse events occurred with inclisiran than with placebo. (Funded by the Medicines Company; ORION-10 and ORION-11 ClinicalTrials.gov numbers, NCT03399370 and NCT03400800.).

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Crossref · 10.1056/nejmoa1912387

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  • Randomized controlled trials including VICTORION-Mono, VICTORION-Difference, ORION-10, ORION-11, and other Phase III trials have consistently demonstrated that inclisiran reduces LDL-C compared with placebo in primary and secondary prevention settings.

    “Randomized controlled trials, including the VICTORION-Mono and VICTORION-Difference trials, as well as ORION -10, -11, and other Phase III trials, have consistently demonstrated that inclisiran reduces LDL-C compared with placebo in primary and secondary prevention settings.5, 6, 7”

    From Small Interfering RNA for LDL-Cholesterol Reduction (2026) · cites this paper as [7]

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  • The ORION-10 and ORION-11 trials showed that patients achieved LDL-C decreases of 52.3% and 49.9% at Day 510.

    “The trials showed that patients achieved LDL-C decreases of 52.3% and 49.9% at Day 510 [44].”

    From Inclisiran SiRNA therapy for durable LDL-C reduction: a systematic review and meta-analysis highlighting a breakthrough in long-term cardiovascular risk management (2026) · cites this paper as [44]

    The Results (p. 1) give 52.3% and 49.9% reductions at day 510 for ORION-10 and ORION-11. The Efficacy section (p. 5) clarifies that these are differences versus placebo, not the decreases observed in patients receiving inclisiran, which were 51.3% and 45.8%, respectively. (LLM, conf=0.84)

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  • The ORION-10 and ORION-11 trials achieved LDL-C reductions greater than 50% among their participants.

    “The ORION-10 and ORION-11 trials achieved LDL-C reductions greater than 50% among their participants [44].”

    From Inclisiran SiRNA therapy for durable LDL-C reduction: a systematic review and meta-analysis highlighting a breakthrough in long-term cardiovascular risk management (2026) · cites this paper as [44]

    The RESULTS (p. 1) report LDL-cholesterol reductions greater than 50% in ORION-10: 52.3% at day 510 and 53.8% time-adjusted. The corresponding ORION-11 estimates were 49.9% and 49.2%, so the paper does not support saying both trials achieved reductions greater than 50%. (LLM, conf=0.94)

    Experimental — accuracy not yet measured
  • Initial injections of inclisiran at Day 1 and 90 followed by biannual maintenance resulted in a long-term average LDL-C reduction of −44% to −48% across ORION-1, ORION-10, and ORION-11.

    “The initial injections of inclisiran at Day 1 and 90 followed by biannual maintenance resulted in a long-term average LDL-C reduction of − 44% to − 48% across ORION-1 and ORION-10 and ORION-11 [25, 44].”

    From Inclisiran SiRNA therapy for durable LDL-C reduction: a systematic review and meta-analysis highlighting a breakthrough in long-term cardiovascular risk management (2026) · cites this paper as [44]

    The Methods (p. 1) confirm injections on days 1 and 90 followed by six-monthly dosing in ORION-10 and ORION-11. The Results (p. 1) report time-adjusted LDL-C reductions of 53.8% and 49.2% versus placebo, not a −44% to −48% average; this paper does not report that result across ORION-1, ORION-10, and ORION-11. (LLM, conf=0.90)

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  • Many patients stop taking daily statin medications or PCSK9 antibody injections irregularly, reducing their ability to prevent cardiovascular diseases.

    “Clinical observations demonstrate that numerous patients stop taking their daily statin medications or PCSK9 antibody injections irregularly which reduces their ability to prevent cardiovascular diseases [44, 80].”

    From Inclisiran SiRNA therapy for durable LDL-C reduction: a systematic review and meta-analysis highlighting a breakthrough in long-term cardiovascular risk management (2026) · cites this paper as [44]

    The Discussion (p. 11) says poor statin adherence is associated with less LDL-cholesterol reduction and a higher risk of cardiovascular events. It does not report that patients take PCSK9 antibody injections irregularly or that missed injections reduce cardiovascular prevention; the paper studies inclisiran, a different treatment. (LLM, conf=0.88)

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Research works printed but not linked: 1

  1. [7]7. cardiovascular outcomes in patients with atherosclerosis or other cardiovascular risk factors treated with statins and/or ezetimibe. JAMA Netw Open 2018; 1(8): e185554.

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Authors
Ray, K. K., Wright, R. S., Kallend, D., Koenig, W., Leiter, L. A., Raal, F. J., Bisch, J. A., Richardson, T., Jaros, M., Wijngaard, P. L. J., & Kastelein, J. J. P.
Affiliations
  • Mayo Clinic (US)
  • From the Imperial Centre for Cardiovascular Disease Prevention, Department of Primary Care and Public Health, Imperial College London, London (K.K.R.); the Department of Cardiology, Mayo Clinic, Rochester, MN (R.S.W.); the Medicines Company, Zurich, Switzerland (D.K.); Deutsches Herzzentrum München, Technische Universität München, and Deutsches Zentrum für Herz-Kreislauf-Forschung (German Center for Cardiovascular Research), partner site Munich Heart Alliance, Munich, and the Institute of...
  • St. Michael's Hospital (CA)
Venue
New England Journal of Medicine
Published
2020-04-16
Volume
382
Issue
16
Pages
1507-1519
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W3012265841
Cited by
1,665
References
19
Citations by year
2026: 296 · 2025: 290 · 2024: 289 · 2023: 273 · 2022: 231 · 2021: 193 · 2020: 87 · 2019: 1 · 2018: 1 · 2016: 1 · 2013: 1
FWCI
183.81
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion, cc-by-sa)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • mediaTUM – the media and publications repository of the Technical University Munich (Technical University Munich) (submittedVersion)
  • Spiral (Imperial College London) (submittedVersion)
Funders
The Medicines Company
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
inclisiran, PCSK9 inhibition, LDL cholesterol lowering, atherosclerotic cardiovascular disease, statin therapy, injection-site adverse events, hypercholesterolemia, lipid-lowering therapy, adverse events, drug safety and efficacy
MeSH terms
Proprotein Convertase 9, PCSK9 Inhibitors, Aged, Aged, 80 and over, Anticholesteremic Agents, Cardiovascular Diseases, Coronary Artery Disease, Double-Blind Method, Drug Administration Schedule, Female, Humans, Hypercholesterolemia, Injections, Subcutaneous, Cholesterol, LDL, Liver Function Tests, Male, Middle Aged, Risk Factors, Hydroxymethylglutaryl-CoA Reductase Inhibitors, RNA, Small Interfering

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