Prevention & lipids

Olpasiran, Oxidized Phospholipids, and Systemic Inflammatory Biomarkers: Results From the OCEAN(a)-DOSE Trial

JAMA CardiolPublished Secondary analysis of the OCEAN(a)-DOSE randomised trial

Authors' conclusion

In the OCEAN(a)-DOSE multicenter randomized clinical trial, olpasiran led to a significant and sustained reduction in OxPL-apoB but no significant effects on hs-CRP or hs-IL-6.

Study context

Population
Patients with atherosclerotic CVD and Lp(a) >150 nmol/L272 analysed
Participants
281 patients
Comparison
Olpasiran vs placebo
Primary endpoint
Placebo-adjusted change in OxPL-apoB
Follow-up
Baseline to week 36
Methodological detailsinternational, multicentre, placebo-controlled, phase 2, dose-finding, Conducted July 2020 to November 2022
  • International
  • Multicentre
  • Placebo-controlled
  • Phase 2
  • Dose-finding
  • Conducted July 2020 to November 2022

Primary result

As reported in the abstract

Placebo-adjusted mean % change in OxPL-apoB · week 36
Each group vs placeboPlacebo-adjusted mean percentage change, % (95% CI)P value
10 mg Q12W
−51.6(−64.9% to −38.2%)
P < 0.001
75 mg Q12W
−89.7(−103.0% to −76.4%)
P < 0.001
225 mg Q12W
−92.3(−105.6% to −78.9%)
P < 0.001
225 mg Q24W
−93.7(−107.1% to −80.3%)
P < 0.001

Further findings

OutcomePlacebo-adjusted percentage change (%)P value
Placebo-adjusted % change in OxPL-apoB · week 4810 mg Q12W vs Placebo−50.8P < 0.001
Placebo-adjusted % change in OxPL-apoB · week 4875 mg Q12W vs Placebo−100.2P < 0.001
Placebo-adjusted % change in OxPL-apoB · week 48225 mg Q12W vs Placebo−104.7P < 0.001
Placebo-adjusted % change in OxPL-apoB · week 48225 mg Q24W vs Placebo−85.8P < 0.001

Correlation of % reduction in Lp(a) and OxPL on apolipoprotein B (OxPL-apoB) (olpasiran)

Strong correlation, r
0.79
P
P < 0.001

Hs-C-reactive protein (hs-CRP) and hs-IL-6 · weeks 36 or 48

No significant impact of olpasiran vs placebo
P > 0.05

Original publication

Olpasiran, Oxidized Phospholipids, and Systemic Inflammatory Biomarkers: Results From the OCEAN(a)-DOSE Trial. JAMA Cardiol. Published 1 May 2025. doi:10.1001/jamacardio.2024.5433

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