Study type

Study topic

Disease /health condition
Human medicinal product

Study type

Non-interventional study

Scope of the study

Drug utilisation

Data collection methods

Secondary data collection
Non-interventional study

Non-interventional study design

Cohort
Other

Non-interventional study design, other

Retrospective population-based study
Study drug and medical condition

Anatomical Therapeutic Chemical (ATC) code

(A02BA01) cimetidine
(A02BA02) ranitidine
(A02BA04) nizatidine
(A02BA06) roxatidine
(A02BA08) lafutidine
(A02BA51) cimetidine, combinations

Medical condition to be studied

Peptic ulcer

Additional medical condition(s)

Incidence of use of ranitidine and alternatives medicines to ranitidine (other H2RA, PPIs, antacids and other drugs used for peptic ulcer and GERD) Treatment discontinuation in patients treated with ranitidine Switching from ranitidine to alternative medicines
Population studied

Short description of the study population

The study population included all individuals exposed to ranitidine-containing medicines identified from six databases from six European countries namely IPCI (the Netherlands), SIDIAP (Catalonia Spain) and IQVIA (UK IMRD, LPD Belgium, DA Germany and LPD France) for the period of 1st January 2017 until 1st January 2023.

Age groups

Preterm newborn infants (0 – 27 days)
Term newborn infants (0 – 27 days)
Infants and toddlers (28 days – 23 months)
Children (2 to < 12 years)
Adolescents (12 to < 18 years)
Adults (18 to < 46 years)
Adults (46 to < 65 years)
Adults (65 to < 75 years)
Adults (75 to < 85 years)
Adults (85 years and over)

Estimated number of subjects

1250000
Study design details

Main study objective

To determine drug utilisation and prescription patterns of medicinal products containing ranitidine (A02BA02) and alternative medicinal products (other H2 receptor antagonists, proton pump inhibitors and other medicinal products for acid-related disorders).

Outcomes

Incidence of use of ranitidine and alternatives medicines to ranitidine (other H2RA, PPIs, antacids and other drugs used for peptic ulcer and GERD) Treatment discontinuation in patients treated with ranitidine Switching from ranitidine to alternative medicines

Data analysis plan

An initial exploratory analysis will be conducted for each country-specific cohort to summarise baseline demographic characteristics, medical conditions at time of treatment initiation, indication and exposure. Incident drug use will be expressed as the number of users per 1,000 persons per quarter, calendar year and by referral period. For each database (and thus by country), stratum specific estimates will be presented separately according to: referral period (pre-, during- and post-referral), indication, age category, sex and formulation.
Documents
Study results
English (2.64 MB - PDF)View document