Study type

Study topic

Human medicinal product

Study type

Non-interventional study

Scope of the study

Drug utilisation

Data collection methods

Secondary use of data
Non-interventional study

Non-interventional study design

Cohort
Study drug and medical condition

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

AZATHIOPRINE

Anatomical Therapeutic Chemical (ATC) code

(L04AX01) azathioprine
azathioprine
Population studied

Short description of the study population

For this study we have one cohort, namely:
• Population of individuals newly treated with Azathioprine
Study design details

Study design

New drug/s user cohort

Main study objective

1. Characterise azathioprine initiators by sex and age at first prescription.
2. Identify potential indications for azathioprine, and the percentage of azathioprine-treated patients for each pre-defined approved indication:
a) Organ transplantation
b) Severe rheumatoid arthritis or chronic polyarthritis
c) Inflammatory bowel disease
d) Systemic lupus erythematosus
e) Dermatomyositis
f) Polyarteritis nodosa
g) Pemphigus vulgaris and bullous pemphigoid
h) Behçet's disease
i) Refractory autoimmune haemolytic anaemia
j) Refractory idiopathic thrombocytopenic purpura
k) Polymyositis
l) Pyoderma gangrenosum
m) Multiple sclerosis
n) Myasthenia gravis.
3. Large-scale characterisation overall and per indication of drugs and conditions within one year prior to the index date (-365 to -1 day to the index date) and on the index date will be assessed.
4. Estimate and summarise duration of treatment with azathioprine, overall, and stratified per indication.

Setting

This study will use routinely collected health data from 5 databases in the DARWIN EU® network of data partners from 4 European countries. All databases were previously mapped to the OMOP CDM.
Data sources  
1. Clinical Practice Research Datalink (CPRD) GOLD, United Kingdom
2. Integrated Primary Care Information (IPCI), Netherlands
3. IQVIA Disease Analyzer Germany (IQVIA DA Germany), Germany
4. Institut Municipal Assistència Sanitària Information System (IMASIS), Spain
5. The Information System for Research in Primary Care (SIDIAP), Spain  
Documents
Study report
English (1.27 MB - PDF)View document