Study type

Study topic

Disease /health condition
Human medicinal product

Study type

Non-interventional study

Scope of the study

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

Data collection methods

Combined primary data collection and secondary use of data
Non-interventional study

Non-interventional study design

Other

Non-interventional study design, other

Voluntary, post-authorization safety study
Study drug and medical condition

Name of medicine

AVONEX
PLEGRIDY

Medical condition to be studied

Multiple sclerosis
Pregnancy
Population studied

Short description of the study population

Female participants diagnosed with multiple sclerosis, aged at least 18 years treated with subcutaneous peginterferon beta-1a therapy or intramuscular interferon beta-1a therapy enrolled in the Patient Support Program (PSP) of Biogen’s German MS Service-Center (MSSC).
Inclusion criteria:
• Female patients of at least 18 years at time of informed consent
• Diagnosed RRMS or CIS (CIS indication only applicable for interferon beta-1a)
• Exposure to either SC Peginterferon beta-1a therapy or IM Interferon beta-1a therapy before or during pregnancy
• Registered in the PSP of the MSSC and agreed in writing to the privacy policy of the registration form
• Reported pregnancy data (pregnancy report and pregnancy outcome report) available at MSSC. Note: only pregnancy data (i.e. obtained until 15 October 2020) will be considered

For the prospective part of the study:
• Ability to understand the purpose of the study and provide signed and dated study-specific informed consent form (ICF)
• Pregnancy outcome in the retrospectively collected data was a live birth

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

Other
Pregnant women

Special population of interest, other

Multiple Sclerosis patients

Estimated number of subjects

470
Study design details

Main study objective

The primary objective(s) of the study is to evaluate the impact of exposure to SC Peginterferon beta-1a or IM Interferon beta-1a before and during pregnancy on pregnancy outcome in female participants who had registered in the German Patient Support Program (PSP) and of whom a pregnancy report and pregnancy outcome report is available.

Outcomes

Percentage of Subjects With Live Births Without Congenital Anomalies, Percentage of Subjects With Live Births With Congenital Anomalies, Percentage of Subjects With Ectopic Pregnancies, Percentage of Subjects With Spontaneous Abortions, Percentage of Subjects With Elective Abortions, Percentage of Subjects With Preterm Births, Percentage of Subjects With Stillbirths. To evaluate exposure to SC Peginterferon beta-1a or IM Interferon beta-1a: before and during pregnancy on child development, treatment behavior for pregnant women in daily real life, other MS treatment behavior and use of certain concomitant medications taken during/after pregnancy, on MS disease activity, effect of breastfeeding and benefit of exclusive breastfeeding versus complementary feeding.

Data analysis plan

All documented data are analyzed by descriptive statistics, i.e. absolute frequencies and percentages for categorical variables and mean, standard deviation and percentiles for continuous variables. No formal statistical hypothesis will be formulated, and no statistical tests will be carried out.
Documents
Study results
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