Trial reportClinical pharmacokinetics2026
A Population Pharmacokinetic and Exposure-Response Analysis for Baricitinib in Pediatric Patients with Atopic Dermatitis.
Trial report in Clinical pharmacokinetics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03952559 (A Phase 3, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Outpatient Study Evaluating the Pharmacokinetics, Efficacy, and Safety of Baricitinib in Pediatric Patients With Moderate to Severe Atopic Dermatitis), which is not on this map. Not yet cited in PubMed.
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A Phase 3, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Outpatient Study Evaluating the Pharmacokinetics, Efficacy, and Safety of Baricitinib in Pediatric Patients With Moderate to Severe Atopic Dermatitis
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Authors and funding
5 authors.
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Abstract
backgroundBaricitinib is approved for the treatment of adults with moderate-to-severe atopic dermatitis (AD) who are candidates for systemic therapy and has received regulatory authorization in Europe for moderate-to-severe AD in patients 2 to <18 years.
objectiveThis study aims to optimize dosing for baricitinib in pediatric patients with atopic dermatitis using pharmacokinetic/pharmacodynamic modeling leveraging adult data.
methodsThe phase III, randomized, double-blind, placebo-controlled study, BREEZE-AD-PEDS (NCT03952559, registration date: 2019-05-16), enrolled patients (aged 2 to <18 years) with moderate-to-severe AD. During a pharmacokinetic (PK) lead-in period, baricitinib concentration data from age-based dose cohorts (4 mg once daily [QD]: 10 to <18 years; 2 mg QD: 2 to <10 years) were compared with actual and simulated concentration values from adult patients receiving baricitinib 4 mg QD. A population PK model incorporating allometric scaling was developed to determine weight-based dosing in pediatric patients that matches adult exposures. The exposure-response (E-R) relationships were analyzed for the primary endpoint: a validated Investigator Global Assessment
resultsThe age-based and subsequent weight-based dosing (2 mg for patients 10 to <30 kg and 4 mg for patients ≥30 kg) was comparable to the 4-mg adult exposure. A clear E-R relationship was observed for the primary endpoint when sorted for age or weight groups.
conclusionThe population PK model developed using baricitinib concentrations from adult patients, with allometric scaling for weight on clearance and volume, adequately predicted exposures in the pediatric population. The PK modeling, with E-R analysis, informed an appropriate weight-based dosing regimen.
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