The Benralizumab Pregnancy Exposure Study: A VAMPSS Post Marketing Surveillance Study
Trial Snapshot
- Phase
- Not Applicable
- Status
- Terminated
- Sponsor
- AstraZeneca
- Enrollment
- 299
- Locations
- 1
- Primary Endpoint
- Major structural birth defects
Study Overview
Brief Summary
This is a prospective, observational, exposure cohort study of pregnancy and infant outcomes in women with asthma exposed to benralizumab anytime during pregnancy, or within 8 weeks prior to the first day of the last menstrual period (LMP)
The objective of the study is to monitor planned or unplanned pregnancies to evaluate potential teratogenic effect (birth defect) when exposed to benralizumab compared to two unexposed comparator groups.
The primary outcome is major structural birth defects (abnormalities in development of structures of the body) and the secondary outcomes are preterm delivery (premature baby), small for gestational age infants (small for weight, length, and/or head circumference), spontaneous abortion (miscarriage), stillbirth (baby born without signs of life), elective termination (voluntary abortion) and small for age postnatal growth to one year of age (small for weight, length and/or head circumference). The birth prevalence or incidence of outcomes in women exposed to benralizumab, and their infants, will be compared to those observed in two unexposed comparator groups: a disease-matched comparison group of women who have not used benralizumab during pregnancy or within 8 weeks of their last menstrual period (LMP), but who have used other anti-asthmatic medications (treated disease comparison group), and a comparison group of healthy women who do not have a diagnosis of asthma, have not had exposure to a known human teratogen (substance that causes birth defect), and have not taken benralizumab in pregnancy (healthy comparison group).
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to 130 Years (Adult, Older Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Currently pregnant women diagnosed with asthma who contact the OTIS Research Center and who have been exposed to benralizumab for any number of days, at any dose, and at any time from 8 weeks before the first day of LMP up to and including the end of pregnancy.
- •Eligible participants will be currently pregnant women who agree to the conditions and requirements of the study including the interview schedule and release of medical records.
Exclusion Criteria
- •Women who have had exposure to another biologic, used for any indication, anytime during pregnancy or within 8 weeks of LMP.
- •Women will not be eligible for Cohort 1 if they first contact the OTIS Research Center after prenatal diagnosis of a major structural birth defect.
- •Restrospective cases (outcome of pregnancy known prior to enrollment).
- •Women who have enrolled in the current study with a previous pregnancy.
- •Cohort 2: Treated Diseased Comparison
- •Inclusion Criteria:
- •Currently pregnant women diagnosed with asthma and exposed to asthma medications for any number of days, at any dose, and at any time from LMP up to the date of enrollment, who contact the OTIS Research Center but who were not exposed to benralizumab during pregnancy or within 8 weeks prior to LMP.
- •Eligible participants will be currently pregnant women who agree to the conditions and requirements of the study including the interview schedule and release of medical records.
- •Exclusion Criteria:
- •Women with exposure to benralizumab any time during pregnancy or within 8 weeks prior to LMP.
- •Women will not be eligible for Cohort 2 if they first come in contact with the OTIS Research Center after prenatal diagnosis of a major structural birth defect.
- •Retrospective cases (outcome of pregnancy known prior to enrollment).
- •Women who have enrolled in the current study with a previous pregnancy.
- •Cohort 3: Non-Asthmatic Comparison
- •Inclusion Criteria:
- •Currently pregnant women who contact the OTIS Research Center.
- •Eligible women may potentially have been exposed to non-teratogenic agents during this pregnancy.
- •Women who agree to the conditions and requirements of the study including the interview schedule and release of medical records.
- •Exclusion Criteria:
- •Women who have been exposed to any known teratogenic agents as determined by the OTIS Research Center (list in Annex 1) for any number of days, at any dose, from the first day of the last menstrual period up to and including the end of pregnancy.
- •Women with a self-reported diagnosis of asthma, current or previous.
- •Women will not be eligible for Cohort 3 if they come in contact with the OTIS Research Center after prenatal diagnosis of a major structural birth defect.
- •Retrospective cases (outcome of pregnancy known prior to enrollment).
- •Women who have enrolled in the current study with a previous pregnancy.
Arms & Interventions
Benralizumab-exposed group
Pregnant women with asthma exposed to benralizumab anytime during pregnancy or within 8 weeks prior to last menstrual period
Intervention: Benralizumab-exposure (Drug)
Asthmatic comparison group
Pregnant women currently treated for asthma not exposed to benralizumab during pregnancy or within 8 weeks prior to last menstrual period
Intervention: Exposure to other asthma medications (Drug)
Outcomes
Primary Outcomes
Major structural birth defects
Time Frame: Up to 1 year of age
Pregnancies ending in live birth with exposure in the first trimester for benralizumab cohort, and other comparison groups at least one malformed infant in an individual pregnancy is considered one malformed outcome
Secondary Outcomes
- Spontaneous abortion/miscarriage(Prior to 20.0 weeks gestation)
- Preterm delivery(Prior to 37 weeks of gestation)
- Small for gestational age infants(At birth)
- Stillbirth(At delivery)
- Elective termination/abortion(At the end of pregnancy, or through 9 month pregnancy period)
- Small for age postnatal growth of live born children to 1 year of age(Up to one year of age)