A Study to Evaluate Pregnancy Outcomes in Females Treated With Oral Elagolix Tablets and Capsules

Prospective Registry to Evaluate Pregnancy Outcomes in Women Treated With Elagolix

Orilissa is a drug approved for the management of moderate to severe pain associated with endometriosis. Oriahnn is approved for heavy menstrual bleeding due to uterine fibroids. Elagolix-containing products should not be taken by women who are pregnant or suspected to be pregnant but pregnancies are expected as the medicine does not completely stop ovulation and women may inadvertently continue taking Elagolix-containing products until their pregnancy is confirmed.

This study will assess pregnancy outcomes (maternal, fetal, and infant) of participants with and without exposure to Elagolix-containing products for their endometriosis or other conditions based on approved indications and prescribing patterns of Elagolix. Around 584 participants will be enrolled (292 participants exposed to Elagolix and 292 without exposure) in the United States.

Participants will not receive Elagolix-containing products as part of this study but will be followed for maternal and fetal outcomes up to 1 year after delivery.

There may be a higher burden for participants in this study compared to standard of care. Participants will be asked to provide additional information by questionnaire during each trimester of pregnancy, and at 0-6 weeks, 26 weeks, and 1 year after delivery. Contact Bloom Pregnancy Call Center at 1-833-782-7241 or bloompregnancyregistry@iqvia.com or visit https://www.bloompregnancyregistry.com/.

Study Overview

• Status: Terminated
• Conditions: Endometriosis; Uterine Fibrioids

• Study Type: Observational
• Enrollment (Actual): 173

Contacts and Locations

Study Locations

• United States
  • North Carolina
    • Durham, North Carolina, United States, 27703-8426
      • Iqvia /Id# 240918

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Pregnant women with or without exposure to Orilissa for their endometriosis or other indications for prescribing of the medication.

Description

Inclusion Criteria:

Participants exposed to Elagolix:

• Currently pregnant.
• Documentation that the participant was exposed to elagolix-containing product from 14 days after last menstrual period (LMP) or at any time during pregnancy.
• Consents to participate in the study. If the participant is a minor, consent will be obtained according to local regulations.

Internal Comparator:

• Currently pregnant with endometriosis, uterine fibroids, or other conditions based on approved indications and prescribing patterns of elagolix-containing product.
• Documentation that the participant was not exposed to elagolix-containing product from 14 days after LMP or any time during pregnancy.
• Consents to participate in the study. If the participant is a minor, consent will be obtained according to local regulations.

Exclusion Criteria:

-None.

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort
Participants exposed to Elagolix-containing products; Pregnant participants exposed to Elagolix from 14 days after last menstrual period (LMP) or at any point during pregnancy.
Participants not exposed to Elagolix-containing products; Pregnant participants with endometriosis, uterine fibroids, or other conditions based on approved indications and prescribing patterns of Elagolix-containing products not exposed to Elagolix from 14 days after LMP or at any point during pregnancy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Rate of major congenital malformations	Defined as an abnormality in structural development that is medically or cosmetically significant, present at birth, and persists in postnatal life unless or until repaired.	Approximately 2 years (1 year post-delivery)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Rate of minor congenital malformations	Defined as a defect that occurs infrequently in the population but that has neither cosmetic nor functional significance to the child and is identified in the infant up to 1 year of age.	Approximately 2 years (1 year post-delivery)
Rate of spontaneous abortion	Defined as non-deliberate embryonic or fetal death that occurs prior to 20 weeks gestation post-last menstrual period.	Up to 9 months
Rate of elective or therapeutic pregnancy termination	Rate of elective or therapeutic pregnancy termination.	Up to 9 months
Rate of stillbirth	Defined as non-deliberate fetal death that occurs at or after 20 weeks gestation but prior to delivery.	Up to 9 months
Rate of preterm birth	Defined as live birth prior to 37 weeks gestation as counted from last menstrual period or based on ultrasound used for conception dating.	Up to 9 months
Rate of maternal placental issues	Rate of maternal placental issues, including placenta previa and placental abruption.	Up to 9 months
Rate of small for gestation age infants	Defined as birth size (weight, length, or head circumference) less than or equal to the 10th percentile for sex and gestational age using National Center for Health Statistics (NCHS) pediatric growth curves for full-term infants. Prenatal growth curves specific to preterm infants will be used for premature infants.	Up to 9 months
Rate of postnatal growth deficiency or failure to thrive	Rate of postnatal growth deficiency or failure to thrive as diagnosed by his/her treating physician using criteria such as a significant weight or weight-for-height deceleration.	Approximately 2 years (1 year post-delivery)

Collaborators and Investigators

• Sponsor: AbbVie
• Investigators: Study Director: ABBVIE INC., AbbVie

Publications and helpful links

Helpful Links

• Related Info.

Study record dates

Study Major Dates

• Study Start (Actual): January 6, 2022
• Primary Completion (Actual): July 11, 2025
• Study Completion (Actual): July 11, 2025

Study Registration Dates

• First Submitted: July 7, 2020
• First Submitted That Met QC Criteria: July 7, 2020
• First Posted (Actual): July 9, 2020

Study Record Updates

• Last Update Posted (Estimated): September 15, 2025
• Last Update Submitted That Met QC Criteria: September 9, 2025
• Last Verified: September 1, 2025

More Information

Terms related to this study

• Keywords: Pregnancy; Endometriosis; Elagolix; Orlissa; Uterine fibriods; Oriahnn
• Additional Relevant MeSH Terms: Urogenital Diseases; Genital Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Genital Diseases, Female; Endometriosis
• Other Study ID Numbers: P18-954

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No