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PCSK9 inhibitors significantly reduce LDL-C levels in patients with atherosclerotic cardiovascular diseasePCSK9 inhibitors lower LDL but not stroke risk

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Key Takeaway
Note that all three PCSK9 inhibitors significantly reduce LDL-C levels in patients with atherosclerotic cardiovascular disease.

This meta-analysis evaluates the clinical efficacy, safety, and cost-effectiveness of three PCSK9 inhibitors (alirocumab, evolocumab, and inclisiran) compared to standard care in patients with atherosclerotic cardiovascular disease (ASCVD). The analysis included a total sample size of 63,328 patients.

The synthesis indicates that all three PCSK9 inhibitors significantly reduced LDL-C levels compared to standard care. Regarding clinical outcomes, both alirocumab and evolocumab were found to significantly reduce the risk of non-fatal myocardial infarction, while no statistically significant differences were observed for stroke outcomes. No increased risk of serious adverse events was associated with any of the three PCSK9 inhibitors.

Cost-effectiveness analysis showed ICER values of USD 12,791.07/QALY for alirocumab and USD 11,646.38/QALY for evolocumab. For inclisiran, the ICER was USD 31,730.14/QALY; however, in a specific scenario involving a 72.1% price reduction, the ICER decreased to USD 9,686.31/QALY with a 96.6% probability of being cost-effective at a threshold of USD 13,410/QALY. The study identifies evolocumab as having relative advantages in lipid lowering, cardiovascular outcomes, and economic value.

How this fits prior evidence

This meta-analysis extends the evidence regarding PCSK9 inhibitors beyond pediatric populations to patients with atherosclerotic cardiovascular disease. While previous findings confirmed that PCSK9 inhibitors reduce LDL-C by 35.44% in children with heterozygous familial hypercholesterolaemia, this study confirms significant LDL-C reduction across all three agents (alirocumab, evolocumab, and inclisiran) in the adult ASCVD population.

A new meta-analysis pooled data from 63,328 patients with atherosclerotic cardiovascular disease (ASCVD) to compare three PCSK9 inhibitors (alirocumab, evolocumab, and inclisiran) against standard care, which included statins with or without ezetimibe. The analysis combined results from multiple randomized trials to give a clearer picture of how these newer cholesterol-lowering drugs perform.

All three drugs significantly reduced LDL cholesterol levels compared with standard care. Both alirocumab and evolocumab also lowered the risk of non-fatal heart attacks. However, none of the drugs showed a statistically significant difference in stroke outcomes. The study did not report any increased risk of serious adverse events for any of the three drugs.

The analysis also looked at cost-effectiveness. Alirocumab cost about $12,791 per quality-adjusted life year (QALY), evolocumab about $11,646 per QALY, and inclisiran about $31,730 per QALY. In a scenario where inclisiran's price was reduced by 72.1%, its cost-effectiveness improved to $9,686 per QALY, with a 96.6% probability of being cost-effective at a willingness-to-pay threshold of $13,410 per QALY.

This is a meta-analysis, meaning it combines existing studies, so the results are only as reliable as those studies. Also, the cost-effectiveness findings for inclisiran depend heavily on a specific price reduction scenario. For patients, this suggests that PCSK9 inhibitors are effective at lowering cholesterol and preventing heart attacks, but they may not reduce stroke risk. Anyone considering these drugs should discuss their individual risks and costs with their doctor.

What this means for you:
PCSK9 inhibitors lower LDL and heart attack risk, but stroke benefit remains unproven.

Common questions

Do PCSK9 inhibitors reduce the risk of stroke?

In this meta-analysis, none of the three PCSK9 inhibitors (alirocumab, evolocumab, inclisiran) showed a statistically significant difference in stroke outcomes compared with standard care. That means the evidence does not currently support a clear benefit for stroke prevention.

Are PCSK9 inhibitors safe?

The analysis found that none of the three PCSK9 inhibitors was associated with an increased risk of serious adverse events. However, the study did not report on other side effects or discontinuation rates, so it is important to discuss potential risks with your doctor.

Which PCSK9 inhibitor is most cost-effective?

Based on the cost-effectiveness analysis, evolocumab had the lowest cost per quality-adjusted life year (QALY) at about $11,646, followed by alirocumab at about $12,791. Inclisiran was higher at about $31,730 per QALY, but if its price were reduced by 72.1%, it would become the most cost-effective at about $9,686 per QALY.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedAug 2026
View Original Abstract ↓
BackgroundIn multiple countries, clinical guidelines recommend proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors for lowering low-density lipoprotein cholesterol (LDL-C) in individuals with atherosclerotic cardiovascular disease (ASCVD). Comprehensive comparisons of the efficacy, safety, and cost-effectiveness across different PCSK9 inhibitors remain limited, and current evidence requires updating. To address this gap, this study applies a health technology assessment framework to systematically evaluate the use of PCSK9 inhibitors in patients with ASCVD.MethodsA systematic search of PubMed, EMBASE, and the Cochrane Library was conducted from database inception to February 28, 2026 to identify randomized controlled trials (RCTs) comparing PCSK9 inhibitors with standard care (statins with or without ezetimibe) in patients with ASCVD. Both pairwise and network meta-analyses were applied to synthesize direct and indirect evidence. Trial sequential analysis (TSA) was performed to evaluate the sufficiency of the accumulated data. In addition, a Markov model was developed from the perspective of the Chinese healthcare system to assess the cost-effectiveness of PCSK9 inhibitors in ASCVD patients.ResultsIn total, 24 RCTs comprising 63,328 participants were included. The results of TSA and network meta-analysis showed that, compared with SOC, all three PCSK9 inhibitors significantly reduced LDL-C levels. No statistically significant differences were found for stroke outcomes. However, both alirocumab and evolocumab significantly reduced the risk of non-fatal myocardial infarction. None of the three PCSK9 inhibitors was associated with an increased risk of serious adverse events. Using the meta-analysis findings and data from the Chinese healthcare system, the incremental cost-effectiveness ratios (ICERs) for alirocumab, evolocumab, and inclisiran versus standard care were estimated at USD 12,791.07/QALY, USD 11,646.38/QALY, and USD 31,730.14/QALY, respectively. In a scenario analysis incorporating a 72.1% reduction in the price of inclisiran, its ICER decreased to USD 9,686.31/QALY. The one-way sensitivity analysis showed that the discount rate exerted the greatest influence on model outcomes. In the price-reduction scenario, probabilistic sensitivity analysis indicated that inclisiran had a 96.6% probability of being cost-effective at a willingness-to-pay threshold of USD 13,410/QALY.ConclusionCurrently, evolocumab demonstrates relative advantages in lipid-lowering efficacy, cardiovascular outcomes, and economic value for patients with ASCVD. Alirocumab represented a cost-effective alternative. In the scenario analysis incorporating a 72.1% reduction in the price of inclisiran, inclisiran became a potentially highly cost-effective option in the Chinese healthcare setting.
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