A Phase 3 interventional study of Placebo and Inclisiran in Acute Coronary Syndrome, sponsored by Novartis Pharmaceuticals. Recruiting at 69 sites in 14 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-16.
Sponsored by Novartis Pharmaceuticals (part of Novartis) · Phase 3, Interventional, and Treatment
The purpose of this trial is to learn about the effects of inclisiran in people with serious heart conditions (acute coronary syndromes), when this treatment is started early after hospital admission. To do this, researchers will test the effects of inclisiran compared to placebo, when given with standard treatment.
This is a multicenter, prospective, randomized, double-blind, placebo-controlled, two arms, parallel groups clinical trial in participants experiencing an ACS (STEMI or NSTEMI) of recent onset. The study drug treatment (inclisiran/placebo) will be initiated at randomization (Day 1) and before discharge.
The study consists of:
Randomization/Baseline visit (Day 1) within 7 days (≤ 7 days) from hospital admission and before or at day of discharge.
The discharge can happen any time after randomization and first study drug administration (Day 1).
Screening and randomization visits must happen during the in-hospital phase, within 7 days (≤ 7 days), and before discharge. The Screening period, of no more than 6 days after the date of hospital admission, will be used to determine if patients qualify to enter the double-blind treatment phase of the study. Screening and Randomization/Day 1 visits cannot occur on the same day. The overall study duration is 150 days.
1,488 studies on the registry are indexed under Acute Coronary Syndrome; 273 are open to participants now.
This study's planned enrollment of 300 is above the median of 200 across 865 interventional studies indexed under Acute Coronary Syndrome.
Browse Acute Coronary Syndrome studies →Novartis Pharmaceuticals is the lead sponsor of 2,718 studies on the registry; 221 are open to participants now.
Of its 585 completed or terminated interventional studies of FDA-regulated products, 438 (75%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Participant eligible for inclusion in this study must meet all the following criteria:
At Screening:
LDL-C values measured by the local lab either at the Screening visit or results from local lab tests performed prior to ICF signature, strictly as part of the routine clinical practice in this emergency ACS setting and not older than 2 days of:
At Randomization:
Exclusion Criteria:
Participant meeting any of the following criteria is not eligible for inclusion in this study.
Only for Japan: For exclusion criteria 6, investigator judgment should be documented in the source data document.
Participant who is clinically unstable during hospitalization for the qualifying ACS event, defined by any of the following events within 24 hours prior to randomization:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
NYHA class (heart failure)
The New York Heart Association’s four classes of how much heart failure limits physical activity.
Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
LVEF (left ventricular ejection fraction)
The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
GFR and eGFR (kidney filtering)
GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².
Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
* Inclisiran sodium 300 mg subcutaneous (s.c.) on top of HIS (+/- LLT) or non-statin LLT in statin intolerant participants * KJX839 284 mg / 1.5 mL (Dose: 300 mg) * Pharmaceutical Dosage Form: solution for subcutaneous injection
Drug: Inclisiran
* Matching placebo on top of HIS (+/- LLT) or non-statin LLT in statin intolerant participants * KJX839 Placebo / 1.5 mL (Dose: 0 mg) * Pharmaceutical Dosage Form: solution for subcutaneous injection
Drug: Placebo
The participants will receive placebo subcutaneous at randomization (Day 1, Baseline visit) and Day 90
The participants will receive Inclisiran sodium 300 mg subcutaneous at randomization (Day 1, Baseline visit) and Day 90
Percent change in LDL-C
To demonstrate the superiority of inclisiran treatment compared to placebo, when initiated before/at discharge, in combination with standard of care (SoC) (statin therapy +/- LLT (Lipid Lowering Therapy) or non-statin treatment in case of documented statin intolerance) on LDL-C reduction at Day 150
Time frame: From baseline to Day 150
Participants achieving LDL-C <70 mg/dL (yes, no)
To assess the proportion of participants reaching pre-specified LDL-C target (\<70 mg/dL) on inclisiran treatment compared to placebo, on top of SoC
Time frame: At Day 90 and Day 150
Participants achieving LDL-C <55 mg/dL (yes, no)
To assess the proportion of participants reaching pre-specified LDL-C target (\<55 mg/dL) on inclisiran treatment compared to placebo, on top of SoC
Time frame: At Day 90 and Day 150
Participants achieving LDL-C <100 mg/dL (yes, no) (among the subset of participants with LDL-C ≥100 mg/dL at baseline)
To assess the proportion of participants reaching pre-specified LDL-C target (\<100 mg/dL) on inclisiran treatment compared to placebo, on top of SoC
Time frame: At Day 90 and Day 150
Participants achieving ≥50% reduction from baseline in LDL-C (yes, no)
To assess the proportion of participants reaching pre-specified LDL-C target (≥50% reduction from baseline) on inclisiran treatment compared to placebo, on top of SoC
Time frame: At Day 90 and Day 150
Percent change from baseline to mean LDL-C over the double-blind treatment period (averaged over all post-baseline visits)
To assess the mean change (averaged over all post-baseline visits), and the change by visit, from baseline in LDL-C for participants receiving inclisiran treatment compared to placebo, on top of SoC
Time frame: From baseline to Day 30, Day 90 and Day 150
Absolute change from baseline to mean LDL-C over the double-blind treatment period (averaged over all post-baseline visits)
To assess the mean change (averaged over all post-baseline visits), and the change by visit, from baseline in LDL-C for participants receiving inclisiran treatment compared to placebo, on top of SoC
Time frame: From baseline to Day 30, Day 90 and Day 150
Percent change in LDL-C
To assess the mean change (averaged over all post-baseline visits), and the change by visit, from baseline in LDL-C for participants receiving inclisiran treatment compared to placebo, on top of SoC
Time frame: From baseline to Day 30 and Day 90
Absolute change in LDL-C
To assess the mean change (averaged over all post-baseline visits), and the change by visit, from baseline in LDL-C for participants receiving inclisiran treatment compared to placebo, on top of SoC
Time frame: From baseline to Day 30, Day 90 and Day 150
Percent change and absolute change in PCSK9
To assess the change of PCSK9 from baseline to Day 150 in participants on inclisiran treatment compared to placebo, on top of SoC
Time frame: From baseline to Day 30, Day 90 and Day 150
Percent change and absolute change from baseline in: apoB, VLDL, non-HDLC, HDL-C, total cholesterol and triglycerides
To assess the change in plasma lipoproteins and triglycerides from baseline to Day 150 in participants on inclisiran treatment compared to placebo, on top of SoC
Time frame: At Day 150
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Plan to share: Yes — Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
No publications or documents are linked to this record.
Started Oct 2025 (actual). Primary completion is estimated for Feb 2027, 16 months after the start.
Of 39 phase 3 interventional studies under Acute Coronary Syndrome, half reached primary completion within 41 months of starting (the median), counting those still running; a quarter within 24 and three quarters within 52. This study's planned 16 months is below that.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Studies of the drug tested here: Inclisiran