NCT06628687

Brief Summary

In this study, researchers will learn more about the safety of BIIB141, also known as omaveloxolone or SKYCLARYS. This is a drug available for doctors to prescribe for people with Friedrich's Ataxia, also known as FA. This is known as an "observational" study, which collects health information about study participants without changing their medical care. Participants for this study will have taken BIIB141 at any time during pregnancy and/or while breastfeeding or pumping up through the first year after delivery. Participants can join this study on their own or they may be enrolled by their regular doctors. This study is also known as the "SKYCLARYS (Omaveloxolone) Pregnancy and Lactation Surveillance Program." The main objective of this study is to learn more about how BIIB141 may affect pregnancy, as well as any effects on the health of the mother and of the baby during its first year of life. The main question researchers want to answer in this study is: · Does taking BIIB141 during pregnancy or breastfeeding lead to any major birth defects? Researchers will also learn more about:

  • Does taking BIIB141 during pregnancy or breastfeeding lead to any minor birth defects?
  • Does taking BIIB141 during pregnancy or breastfeeding affect the following:
  • Gestational diabetes, a disease that can happen during pregnancy that affects how your body uses sugar
  • Pre-eclampsia, a pregnancy-related high blood pressure disease
  • Unborn baby being small for its expected age (usually in weeks)
  • Loss of an unborn baby
  • Live birth
  • Premature birth
  • Loss of a newborn
  • Growth or developmental delays in the baby
  • Serious illness in the baby resulting in hospitalization
  • Serious infections in the baby, or ones in babies with a weakened immune system This study will be done as follows:
  • Participants will join the study after signing an informed consent form, also known as an ICF.
  • During the study, health information from the participants' regular visits to their doctor will be collected based on whether participant joined the study while pregnant or after the baby is born.
  • Each participant will be in the study for up to 1 year after the birth of their child, unless they decide to leave early. Overall, this study is expected to last at least 10 years.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
104mo left

Started Oct 2026

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 30, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

October 8, 2024

Completed
2 years until next milestone

Study Start

First participant enrolled

October 26, 2026

Expected
8.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2035

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2035

Last Updated

June 26, 2025

Status Verified

June 1, 2025

Enrollment Period

8.5 years

First QC Date

September 30, 2024

Last Update Submit

June 23, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Major Congenital Malformations (MCMs)

    A MCM is defined as an abnormality of body structure or function that is present at birth; is of prenatal origin (i.e., birth defect); has significant medical, social, or cosmetic consequences for the affected participant; and typically requires medical intervention.

    Up to 10 years

Secondary Outcomes (15)

  • Number of Minor Congenital Malformations

    Up to 10 years

  • Number of Participants With Gestational Diabetes

    Up to 9 months

  • Number of Participants With Pre-eclampsia

    Up to 9 months

  • Number of Fetal Loss

    Up to 9 months

  • Number of Spontaneous Abortions

    Up to 9 months

  • +10 more secondary outcomes

Study Arms (1)

Omaveloxolone

Participants with FA who were exposed to omaveloxolone at any time during pregnancy (from 12 days prior to conception through the end of pregnancy outcome), and/or at any time during lactation (up to 1 year of infant age or weaning, whichever comes first).

Drug: Omaveloxolone

Interventions

Administered as specified in the treatment arm.

Also known as: SKYCLARYS, BIIB141, RTA 408
Omaveloxolone

Eligibility Criteria

Age16 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population will include participants with FA who were exposed to omaveloxolone at any time during pregnancy and/or lactation. Participants will be enrolled prospectively and retrospectively. Women who enroll prior to pregnancy outcome, and/or prior to start of breastfeeding will be enrolled as prospective participants. Women who enroll after the pregnancy has occurred and/or following the start of breastfeeding will be enrolled as retrospective participants. Retrospective participants will not be included in the analysis population. For prospective and retrospective participants exposed during lactation only, data will be reported separately from pregnancy exposure cases.

You may qualify if:

  • \- Exposure to omaveloxolone for FA at any time during pregnancy (from 12 days prior to conception to pregnancy outcome) and/or at any time during lactation (up to 1 year of infant age or weaning, whichever comes first).

You may not qualify if:

  • \- Not having exposure to omaveloxolone for FA.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Evidera

Morrisville, North Carolina, 27560, United States

RECRUITING

MeSH Terms

Conditions

Friedreich Ataxia

Interventions

omaveloxolone

Condition Hierarchy (Ancestors)

Spinocerebellar DegenerationsCerebellar DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesSpinal Cord DiseasesHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesMitochondrial DiseasesMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Medical Director

    Biogen

    STUDY DIRECTOR

Central Study Contacts

US Biogen Clinical Trial Center

CONTACT

Global Biogen Clinical Trial Center

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 30, 2024

First Posted

October 8, 2024

Study Start (Estimated)

October 26, 2026

Primary Completion (Estimated)

April 30, 2035

Study Completion (Estimated)

April 30, 2035

Last Updated

June 26, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will share

In accordance with Biogen's Clinical Trial Transparency and Data Sharing Policy on https://www.biogentrialtransparency.com/

More information

Locations