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Enrolling by Invitation

NCT Number: NCT05503927

A Study to Evaluate the Safety of Exposure to Wegovy During Pregnancy

This is an observational cohort study using administrative insurance claims data. The aim of this non-interventional study (NIS) is to compare maternal, fetal and infant outcomes of women exposed to Wegovy during pregnancy to a reference population not exposed to Wegovy, so that participants and healthcare providers can make informed treatment decisions.

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Key information

Age range

15 year–50 year

Sex eligibility

Female

Study type

Observational

Primary location

IBM Watson Health™ Truven Marketscan, Ann Arbor, Michigan, United States

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Who can participate

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Evidence of a pregnancy end event on a medical claim (example, live birth, stillbirth, or spontaneous abortion) during the pregnancy identification period (that is, 04 June 2021 - 17 February 2034).
  • Date of conception between 04 June 2021 and 06 May 2033 (that is last menstrual period (LMP) 43 weeks prior to the latest pregnancy end date).
  • Aged 15-50 and female on the date of the LMP.
  • Continuous enrolment in the database with medical and pharmacy benefits for at least 6 months prior to the date of conception through 42 days after the pregnancy end date.
  • Among the pregnancies that meet the inclusion criteria, four main cohorts and two sub cohorts of interest will be identified (two Wegovy-exposed cohorts and two comparison cohorts):
  • Wegovy-exposed- for greater than or equal to 1 day of Wegovy exposure from 35 days prior to estimated date of conception to end of pregnancy. Two mutually exclusive cohorts will be identified based on first Wegovy exposure during pregnancy.
  • Wegovy injection-exposed- for greater than or equal to 1 day of Wegovy exposure from 35 days prior to estimated end of pregnancy.
  • Wegovy tablet-exposed- for greater than or equal to 1 day of Wegovy exposure from 35 days prior to estimated end of pregnancy.
  • Other AOM-exposed- greater than or equal to1 day of phentermine, diethylpropion, benzphetamine, phendimetrazine, orlistat, or bupropion/naltrexone exposure, defined as the following:
  • Benzphetamine, diethylpropion, orlistat, or phendimetrazine exposure from one day prior to estimated conception date to end of pregnancy.
  • Phentermine or bupropion/naltrexone exposure from five days prior to estimated conception date to end of pregnancy.
  • Cohort with Overweight/Obesity and at least one weight related comorbid condition-
  • Greater than or equal to 1 diagnosis code for obesity or BMI greater than or equal to 30 kilogram per meter square (kg/m^2) on a medical claim during the six month pre-pregnancy period.
  • Greater than or equal to 1 diagnosis code for BMI greater than or equal to 27 kg/m^2 or less than 30 kg/m^2 on a medical claim and greater than or equal to 1 non-diagnostic medical claim for dyslipidemia, type 2 diabetes mellitus, or hypertension during the six month pre-pregnancy period.
  • No exposure to Wegovy or other AOM during the defined exposure window in pregnancy.
  • Among Wegovy-exposed and Other AOM-exposed pregnancies, the subset with first trimester exposures will be identified as those with greater than or equal to 1 days of exposure at less than 14 WGA.

Exclusion criteria

  • Pregnancies exposed to other glucagon-like peptide-1 receptor agonist (GLP-1 RA) during the exposure identification window (that is, 35 days prior to estimated conception date through pregnancy end date).
  • Pregnancies with exposure to both Wegovy and other AOM during the exposure identification window (estimated conception date - 35 days through pregnancy end date).
  • Pregnancies resulting in multiple infants will be excluded from the analysis of infant outcomes.

Treatment and study plan

No intervention

Other

This is a non-interventional study, therefore no intervention is used.

Primary outcomes

  1. Number of Infants with Major Congenital Malformation (MCM)

    Time frame: Birth up to 1 year of age

    Number of infants with MCM is defined as an abnormality of body structure or function that is present at birth, is of prenatal origin (that is, birth defect), has significant medical, social, or cosmetic consequences for the affected individual, and typically requires medical intervention.

Secondary outcomes

  1. Number of Infants Experiencing Small for Gestational Age (SGA) Birth

    Time frame: Birth up to 1 year of age

    Number of infants experiencing small for gestational age is defined as weight at birth in less than (<) 10th percentile for sex and gestational age using standard growth charts for full and preterm live born infants.

  2. Number of infants with Developmental Delay

    Time frame: Birth up to 1 year of age

    Infant development delay will be defined as infants with evidence of one or more of the following outcomes in the first year of life: delayed milestone in childhood, other lack of normal physiological development, special screening for developmental disabilities.

  3. Number of Infants With Postnatal Growth Deficiency

    Time frame: Birth up to 1 year of age

    Number of infants with adverse postnatal growth will be defined as infants with evidence of the following outcomes in the first year of life: abnormal weight gain (insufficient or excessive weight gain), short stature, failure to thrive.

  4. Number of Pregnant Participants Experiencing Stillbirth

    Time frame: up to 37 weeks of gestational age

    Number of pregnant participants experiencing still birth is defined as an involuntary fetal loss occurring at greater than or equal to (>=20) WGA.

  5. Number of Pregnant Participants Experiencing Spontaneous Abortion (SAB)

    Time frame: up to 37 weeks of gestational age

    Number of pregnant participants experiencing SAB is defined as an involuntary fetal loss or the expulsion of the products of conception occurring at <20 WGA.

  6. Number of Pregnant Participants With Preterm Delivery

    Time frame: Up to 37 weeks of gestational age

    Preterm birth is defined as a live birth occurring at <37 WGA.

  7. Number of Pregnant Participants With Pre-eclampsia/eclampsia

    Time frame: Up to 37 weeks of gestational age

    Pre-eclampsia/eclampsia is defined as new onset of hypertension with proteinuria occurring at >=20WGA through the six weeks following pregnancy end.

Sponsors and collaborators

Lead sponsor

Novo Nordisk A/S

Industry

Registry information

Official study title

Wegovy® (Semaglutide) Database Study: A Population-based Cohort Study to Investigate Safety Outcomes of Exposure to Wegovy During Pregnancy

Important dates

Study start
2020
Primary completion
2027
Study completion
2027
First posted
Aug 17, 2022
Registry last updated
Jul 21, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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