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World Heart Day 2026: Beyond LDL-C—What Does Lp(a) Change?

Cardiovascular prevention is expanding beyond the standard lipid panel. For World Heart Day, updated guidance and emerging research on lipoprotein(a) [Lp(a)] bring a practical question into focus: how can identifying inherited risk change prevention decisions?

Updated guidance: a broader view of cardiovascular risk

The 2026 ACC/AHA multisociety dyslipidemia guideline recommends measuring Lp(a) at least once in adulthood. It also introduces PREVENT-ASCVD risk estimation and restores risk-based LDL-C and non–HDL-C treatment goals, reinforcing a more individualized approach to prevention.¹

For patients with elevated Lp(a), the clinical relevance extends beyond identifying another abnormal laboratory value. The guideline supports more intensive LDL-C lowering and management of other cardiovascular risk factors—connecting recognition of inherited risk with actions available today.¹

Emerging research: targeting Lp(a) itself

RNA-based approaches are also advancing. A 2025 phase 2 randomized trial involving 320 participants found substantial, sustained Lp(a) reductions with an investigational small interfering RNA targeting hepatic apolipoprotein(a) production. Generally mild injection-site reactions occurred; serious adverse events were reported but were not considered treatment-related by investigators. The study established biomarker lowering, not a reduction in cardiovascular events.²

What LinQ adds: a year-over-year real-world signal

Against this evolving clinical backdrop, an analysis using NorstellaLinQ Real-World Data Explorer examined patients with at least one selected structured Lp(a) result in 2024 and 2025. Patient counts increased across three laboratory sources:

Laboratory sourceIncrease in patients with a recorded Lp(a) result, 2024–2025
Source A47.3%
Source B62.8%
Source C65.3%

A similar upward trend was reported in a US electronic health record study published in 2025, which found an increase in patients tested annually for Lp(a) between 2015 and 2024.³

These findings show growth in recorded Lp(a) results before the 2026 guideline. They do not establish testing rates, the clinical reason for assessment, or changes in management; source coverage and data capture may also contribute.

Together, the developments raise a practical issue for cardiovascular care: how to translate an elevated Lp(a) result into a personalized prevention plan.

Join the discussion

  1. How are you incorporating once-in-adulthood Lp(a) measurement into your workflow, and what would make implementation easier?
  2. When Lp(a) is elevated but LDL-C is already at the patient’s current goal, what most influences your next step in risk assessment or prevention?

LinQ source: NorstellaLinQ Real-World Data Explorer. Adults aged ≥18 years with at least one selected structured Lp(a) result reported in mg/dL or nmol/L during calendar years 2024 and 2025. Percentages represent year-over-year changes in patient counts within each laboratory source, analyzed separately; they are not testing rates. Analysis conducted September 2026. Findings may be affected by source coverage, data availability, linkage, and result mapping. Testing indication, ordering specialty, and first-time versus repeat testing were not assessed.

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    I incorporate Lp(a) as an additional risk-enhancing factor, particularly when there is premature ASCVD or a strong family history. If Lp(a) is elevated despite LDL-C being at goal, I would focus on overall ASCVD risk and consider more intensive LDL-C lowering and optimization of other modifiable risk factors. As Lp(a)-targeted therapies continue to develop, future treatment decisions may become more individualized based on Lp(a) level and overall risk.