Lupus & antiphospholipid syndrome

Hydroxychloroquine and Pre‐eclampsia in a Diverse Cohort of Women With Systemic Lupus Erythematosus

Arthritis Care Res (Hoboken)Published Retrospective cohort study

Authors' conclusion

Although this study found no reduced risk of HCQ on pre-eclampsia or eclampsia, residual confounding may be attenuating the effect despite an integrated health care delivery system setting with detailed clinical data.

Study context

Population
Pregnant patients with prevalent systemic lupus erythematosus (SLE) at Kaiser Permanente Northern California, 2011–2020
Participants
324 patients399 pregnancies
Exposure
Hydroxychloroquine (HCQ) treatment in early pregnancy vs no HCQ treatment
Outcome
Pre-eclampsia or eclampsia
Methodological detailspropensity score-adjusted, modified Poisson models, stratified analysis for effect modification
  • Propensity score-adjusted
  • Modified Poisson models
  • Stratified analysis for effect modification

Main finding

As reported in the abstract

  • Null association between HCQ and pre-eclampsia or eclampsia, consistently across multiple exposure definitions

Observational data: associations, not effects.

Further findings

Pre-eclampsia or eclampsia in nullipara patients (subgroup)

Risk ratios (RRs) consistently lower among nullipara patients

Pre-eclampsia or eclampsia in high-risk subgroup (history of nephritis, aPL positivity, or pregestational hypertension)

RRs consistently protective but not statistically significant (for both nullipara and multipara patients)

Original publication

Hydroxychloroquine and Pre‐eclampsia in a Diverse Cohort of Women With Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken). Published 9 August 2024. doi:10.1002/acr.25386

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.