Incidence of selected adverse events in a population-based Danish cohort with atopic dermatitis treated with conventional systemic therapies: a matched case-cohort study.

10/11/2025
16/03/2026
EU PAS number:
EUPAS1000000628
Study
Ongoing
Study type

Study topic

DiseaseĀ /health condition

Study type

Non-interventional study

Data collection methods

Secondary use of data
Non-interventional study

Non-interventional study design

Cohort
Study drug and medical condition

Medicinal product name, other

METHOTREXATE (L01BA01 / L04AX03)

Study drug International non-proprietary name (INN) or common name

METHOTREXATE

Anatomical Therapeutic Chemical (ATC) code

(L01BA01) methotrexate
methotrexate
(L04AX03) methotrexate
methotrexate
Population studied

Short description of the study population

Patients with atopic dermatitis (AD) verified by a dermatologist and a background population
Study design details

Study design

This is a retrospective observational cohort register study

Main study objective

PRIMARY OBJECTIVE:
The primary objective is to quantify the incident rate of major adverse cardiovascular events (MACE) and malignancy (excluding non-melanoma skin cancer (NMSC)) per individual conventional systemic treatment in a dermatologist-verified adult atopic dermatitis (AD) patient population.
SECONDARY OBJECTIVE:
The secondary objective is to quantify the incident rates of additional adverse events of special interest (All-cause mortality, Arterial thromboembolisms, Venous thromboembolisms, Dyslipidemia, Herpes zoster, NMSC, Serious infections,) per individual conventional systemic treatment in a dermatologist-verified adult atopic dermatitis (AD) patient population.
TERTIARY OBJECTIVE:
The tertiary objective is to compare the above identified incident rates of adverse events per individual conventional systemic treatment in a dermatologist-verified adult atopic dermatitis (AD) patient population with the following two matched cohorts: The Danish background population AND Patients diagnosed with AD not receiving systemic therapies (see section 9.7).