Study type

Study topic

Disease /health condition
Human medicinal product

Study type

Non-interventional study
Non-interventional study

Scope of the study

Assessment of risk minimisation measure implementation or effectiveness
Safety study (incl. comparative)

Data collection methods

Secondary data collection

Non-interventional study design

Cohort
Other

Non-interventional study design, other

Postauthorisation Safety Study (PASS)
Study drug and medical condition

Anatomical Therapeutic Chemical (ATC) code

100000094389
Iron, parenteral preparations

Medical condition to be studied

Anaphylactic reaction
Population studied

Short description of the study population

The study cohort comprised all adults from the source population who had a firstrecorded dispensing/administration of IV iron during the study period, were continuously enrolled or registered in the data source for at least 12 months before the first recorded iron treatment and were at least 18 years of age on the date of the first dispensing/administration of IV iron. Second or subsequent dispensing/administration of the same type of IV iron meeting the inclusion criteria were also considered for the corresponding analyses. For the KfH QiN dialysis registry in Germany, the eligibility requirement for a minimum continuous enrolment of 12 months before the first IV iron administration was not applied because medical information is captured only from the date patients’ initiate dialysis. The same selection criteria were applied to the IV penicillins cohort in the data sources where IV penicillins use was captured (i.e., Danish national and regional linked registries and databases, PHARMO-NL, SNDS in France, and GePaRD in Germany).

Age groups

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)

Special population of interest

Renal impaired

Estimated number of subjects

250000
Study design details

Main study objective

To assess the risk of anaphylactic or severe immediate hypersensitivity reactions on the day of or the day after the first intravenous iron use among patients with various indications for intravenous iron, overall and by groups and types, and to compare the risk between intravenous iron groups (i.e.

Outcomes

Anaphylactic reactions or severe immediate hypersensitivity reactions.

Data analysis plan

Descriptive statistics will be calculated to summarise baseline characteristics at cohort entry by groups and specific intravenous iron types and for the cohorts of intravenous penicillin. Propensity scores will be estimated by using multivariable logistic regression, with the dependent variable 1 for the primary intravenous iron group (or type) of interest or 0 for the comparator intravenous iron group (or type) and all of the prespecified covariates included as independent variables. If numbers are adequate, incidence proportions and risk ratios will be estimated individually in each data source by intravenous iron group and for each intravenous iron type, using iron sucrose as the common comparator group. Analyses will be conducted in each data source separately, and pooled estimates will be calculated if deemed appropriate.
Documents
Results tables
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Study, other information
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