Study type

Study type

Non-interventional study

Scope of the study

Assessment of risk minimisation measure implementation or effectiveness
Non-interventional study

Non-interventional study design

Cohort
Population studied

Age groups

Adolescents (12 to < 18 years)
Adults (18 to < 46 years)
Adults (46 to < 65 years)

Special population of interest

Pregnant women

Estimated number of subjects

370
Study design details

Main study objective

The primary objective is to estimate the relative birth prevalence of major congenital malformations at up to 12 months of age among infants born to women with alopecia areata who are exposed to baricitinib during the first trimester as compared to similar women with AA who are unexposed to a JAK inhibitor at any time during pregnancy.

Outcomes

Major congenital malformations, minor congenital malformations, recognizzed spontaneous abortions stillbrirths, elective terminations, small for gestational age, preterm birth, effects on postnatal group and development through the first year of life

Data analysis plan

Descriptive statistics of all participating women and prevalence of all study outcomes will be summarized, overall and by exposure cohort. Propensity score methods will be applied to estimate the relative birth prevalence of outcomes among pregnant women (and infants) with AA exposed to baricitinib during pregnancy compared to similar women with AA whoa re unexposed to a JAKi during pregnancy.