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Completed

NCT Number: NCT06612879

A Study to Find Out How BIIB141 (Omaveloxolone) Moves From the Blood Into the Breastmilk of Healthy Women Who Are Breastfeeding or Pumping Milk

In this study, researchers will learn how BIIB141, also known as omaveloxolone or SKYCLARYS®, moves through the body. This is a drug available for doctors to prescribe for patients with Friedrich's Ataxia. But, this drug has not yet been tested in women who have recently given birth and are breastfeeding or pumping milk for their babies. So, researchers do not know how much of the drug could be passed on to babies through the breastmilk of mothers who may take BIIB141.

The main objective of this study is to learn how a single dose of BIIB141 is processed in both the breastmilk and in the blood of healthy women who are breastfeeding.

The main question researchers want to answer in this study is:

* How does BIIB141 move from the blood into the breastmilk?

Researchers will also learn more about:

* How BIIB141 moves through the blood * What dose of BIIB141 a baby may get from the mother's breastmilk * Any medical problems the participants have during the study

This study will be done as follows:

* Participants will be screened to check if they can join the study. The screening period will be up to 28 days, after which participants will check into their study research center. * Participants will take a single dose of BIIB141 as a tablet by mouth on Day 1. * Participants will remain at their study research center for 6 days. During this time, the participants will be provided with an electric breast pump. This is so that the researchers can collect breastmilk samples before and after the participants take BIIB141. The researchers will also collect blood samples. * After leaving the study research center, the participants will return every 2 days for the next 10 days for more tests and checkups. * Finally, there will be a follow-up with a "lactation consultant" up to 30 days after each participant's last study visit. This is someone who can help participants with breastfeeding or pumping. * Each participant will be in the study for up to 2.5 months.

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Key information

Conditions

Healthy Volunteer

Age range

18 year–45 year

Sex eligibility

Female

Study type

Interventional

Phase

Phase 1

Primary location

Fortrea Madison WI, CRU

Madison, Wisconsin, 53704, United States

Who can participate

Healthy volunteers accepted: Yes

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

Key Inclusion Criteria:

  • Lactating female 18 to 45 years of age.
  • Has given birth to an infant of at least 37 weeks' gestation.
  • Is at least 6 weeks postpartum by Day 1.
  • Body mass index at screening between 18.0 and and < 35.0 kilograms per meter square (kg/m^2), inclusive.
  • Is willing to discontinue breastfeeding their infant from check-in (Day -1) through 19 days after dosing.
  • Has never taken omaveloxolone.

Key Exclusion Criteria:

  • History of any clinically significant cardiovascular, endocrine, gastrointestinal, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, dermatologic, neurologic, psychiatric, or renal disease, or other major disease, as determined by the Investigator.
  • Clinically significant (as determined by the Investigator) 12-lead electrocardiogram (ECG) abnormalities.
  • History of, or positive test result at Screening for, human immunodeficiency virus.
  • Chronic, recurrent, or serious infection (e.g., pneumonia, septicemia), as determined by the Investigator, within 90 days prior to Screening or between Screening and Day -1.
  • Presence or history of hypotension or hypertension.

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Treatment and study plan

Omaveloxolone

Drug

Administered as specified in the treatment arm.

Other names: BIIB141, SKYCLARYS

Primary outcomes

  1. Maximum Observed Concentration (Cmax) of Omaveloxolone in Breast Milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  2. Time to Achieve Cmax (Tmax) of Omaveloxolone in Breast Milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  3. Average Concentration Based on Area Under the Concentration-Time Curve (AUC [Cav]) of Omaveloxolone in Breast Milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  4. Area Under the Concentration Time Curve From Time Zero to the Time of Last Measurable Concentration (AUC0-tlast) of Omaveloxolone in Breast Milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  5. Time of the Last Measurable Concentration (Tlast) of Omaveloxolone in Breast milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  6. AUC Time Curve From Time Zero to Infinity (AUCinf) of Omaveloxolone in Breast Milk

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  7. Milk-to-Plasma Ratio (M/P) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  8. Cumulative Amount of Omaveloxolone Excreted in Breast Milk (Ae) Over 24 Hours (Ae0-24) Postdose

    Time frame: At multiple timepoints postdose (up to 24 hours)

  9. Cumulative Amount of Omaveloxolone Excreted in Breast Milk (Ae) Over 96 Hours (Ae0-96) Postdose

    Time frame: At multiple timepoints postdose (up to 96 hours)

  10. Fraction of Omaveloxolone Excreted in Breast Milk (Fe) Over 24 Hours (Fe0-24)

    Time frame: At multiple timepoints postdose (up to 24 hours)

  11. Fraction of Omaveloxolone Excreted in Breast Milk (Fe) Over 96 Hours (Fe0-96)

    Time frame: At multiple timepoints postdose (up to 96 hours)

Secondary outcomes

  1. Cmax of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  2. Tmax of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  3. AUC[Cav] of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  4. AUC0-tlast of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  5. AUCinf of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  6. Terminal Elimination Rate Constant (λz) of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  7. Apparent Plasma Terminal Elimination Half-Life (t1/2) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  8. Apparent Plasma Clearance After Extravascular Administration (CL/F) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  9. Apparent Volume of Distribution During the Terminal Elimination Phase After Extravascular Administration (Vz/F) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  10. Percent of Area Under the Plasma Concentration-Time Curve From Time Zero Extrapolated to Infinity (AUC%extrap) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  11. Plasma Unbound Fraction (fu,p) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  12. Cmax of Unbound Plasma Fraction (Cmax,u) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  13. Cav of Unbound Plasma Fraction (AUCinf,u) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  14. AUC0-tlast of Unbound Plasma Fraction (AUC0-last,u) of Omaveloxolone in Plasma

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  15. AUCinf of Unbound Plasma Fraction (AUCinf,u) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  16. Estimated Daily Infant Dosage (DID) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  17. Relative Infant Dose (RID) of Omaveloxolone

    Time frame: Predose and at multiple timepoints postdose (up to Day 15)

  18. Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Time frame: From Day 1 up to end of study follow-up (up to 45 days)

Sponsors and collaborators

Lead sponsor

Biogen

Industry

Registry information

Official study title

An Open-Label, Single Dose Study to Assess the Breast Milk and Plasma Pharmacokinetics of Omaveloxolone (BIIB141) in Healthy Lactating Women

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Sep 25, 2024
Registry last updated
Apr 22, 2025

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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