Prevention & lipidsRandomised controlled trial

Olezarsen, Acute Pancreatitis, and Familial Chylomicronemia Syndrome

N Engl J MedPublished

  • Randomised controlled trial
  • phase 3
  • double-blind
  • placebo-controlled

Authors' conclusion

In patients with familial chylomicronemia syndrome, olezarsen may represent a new therapy to reduce plasma triglyceride levels.

Study context

Population
Patients with genetically identified familial chylomicronemia syndrome
Participants
66 patients
Comparison
Olezarsen 80 mg or 50 mg vs placebo
  • Olezarsen 80 mgn = 22
  • Olezarsen 50 mgn = 21
  • Placebon = 23reference
Primary endpoint
Percent change in fasting triglyceride level, 80 mg vs placebo, then (if significant) 50 mg vs placebo
Follow-up
6 months

Primary result

As reported in the abstract

Percent change in fasting triglyceride level
Each group vs placeboDifference, percentage points (95% CI)P value
Olezarsen 80 mg
−43.5(−69.1 to −17.9)
P < 0.001
Olezarsen 50 mg
−22.4(−47.2 to 2.5)
P = 0.08

Secondary outcomes

Outcomedifference (percentage points) (95% CI)
Mean percent change in apolipoprotein C-III level · 6 months — Olezarsen 80 mg vs Placebo−73.7 (−94.6 to −52.8)
Mean percent change in apolipoprotein C-III level · 6 months — Olezarsen 50 mg vs Placebo−65.5 (−82.6 to −48.3)

events

OutcomeOlezarsen 80 mgOlezarsen 50 mgPlaceborate ratio (95% CI)
Adjudicated acute pancreatitis episodes · 53 weeks · pooled olezarsen groups11110.12 (0.02–0.66)

Safety

OutcomeOlezarsen 80 mgOlezarsen 50 mgPlacebo
Moderate drug-related adverse events (investigator-assessed)4 eventsNot reported in the abstractNot reported in the abstract

Original publication

Olezarsen, Acute Pancreatitis, and Familial Chylomicronemia Syndrome. N Engl J Med. Published 7 April 2024. doi:10.1056/nejmoa2400201

Summarised from the published abstract; every number is checked against it