Aortic & peripheral vascular diseaseCohort study

Tocilizumab Is Associated With a Lower Incidence of Major Adverse Cardiovascular Events in Giant Cell Arteritis

CirculationPublished

  • Target trial emulation (nationwide observational cohort study)
  • clone-censor-weight approach
  • inverse probability of censoring weighting

Authors' conclusion

In this nationwide target trial emulation of incident giant cell arteritis, initiation of tocilizumab was associated with a lower risk of major adverse cardiovascular events compared with methotrexate, primarily through a reduction in coronary events and all-cause deaths.

Study context

Population
Patients hospitalized for incident giant cell arteritis, French National Health Data System, 2012–2024
Participants
1,997 patients
Exposure
Tocilizumab vs methotrexate
  • Tocilizumabn = 1,095
  • Methotrexaten = 902reference
Outcome
First MACE:
  • Any coronary event
  • Ischemic stroke
  • All-cause death
Follow-up
2 years

Main finding

As reported in the abstract

MACE
Each group vs methotrexateRisk difference (95% CI)
Tocilizumab
−4.3%(−6.6% to −1.7%)
Each group vs methotrexateHazard ratio (95% CI)
Tocilizumab
0.60(0.48–0.75)

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)
Coronary events0.55 (0.37–0.84)
All-cause death0.53 (0.36–0.74)

Sensitivity analyses and negative control outcomes

Results consistent in sensitivity analyses (alternative grace periods, corticosteroid dose thresholds, 2017–2024 restriction, per-protocol-analogous approach)
Negative control outcomes did not differ meaningfully between strategies

Original publication

Tocilizumab Is Associated With a Lower Incidence of Major Adverse Cardiovascular Events in Giant Cell Arteritis. Circulation. Published 29 August 2026. doi:10.1161/circulationaha.126.080365

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