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

September 9, 2025 updated by: AbbVie

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

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
173

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

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

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

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

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Rate of major congenital malformations
Time Frame: Approximately 2 years (1 year post-delivery)
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

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Rate of minor congenital malformations
Time Frame: Approximately 2 years (1 year post-delivery)
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
Time Frame: Up to 9 months
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
Time Frame: Up to 9 months
Rate of elective or therapeutic pregnancy termination.
Up to 9 months
Rate of stillbirth
Time Frame: Up to 9 months
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
Time Frame: Up to 9 months
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
Time Frame: Up to 9 months
Rate of maternal placental issues, including placenta previa and placental abruption.
Up to 9 months
Rate of small for gestation age infants
Time Frame: Up to 9 months
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
Time Frame: Approximately 2 years (1 year post-delivery)
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

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
AbbVie

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: ABBVIE INC., AbbVie

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 6, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 11, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 11, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 7, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 7, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 9, 2020

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 15, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 9, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant 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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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