A Study to Learn More About the Effects and Long-Term Safety of BIIB141 (Omaveloxolone) in Participants With Friedreich's Ataxia Aged 2 to 15 Years Old (BRAVE)

Purpose

In this study, researchers will learn more about the effects and safety of BIIB141, also known as omaveloxolone or SKYCLARYS®. This drug has been approved, or made available for doctors to prescribe, for people with Friedreich's Ataxia (FA) who are at least 16 years old. But, it is not yet available for children and teens with FA who are younger than 16 years old. The main objective of this study is to learn how BIIB141 works in the body and about its safety in children and teens who are 2 to 15 years old. The main questions researchers want to answer in this study are: - How does BIIB141 affect the participants' FA symptoms balance and stability? - How many participants have medical problems during the study? - Are there any changes in the participants' overall health during the study? - Are there any changes in the participants' heart health? - Are there any changes in how the participants move through puberty? Puberty is the time in someone's life when their body changes from a child to an adult. Researchers will also learn more about: - How the body processes BIIB141 in children and teens 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. - There are 2 parts in this study. During Part 1, participants will take either BIIB141 or a placebo once a day. - In Part 1, participants will take BIIB141 or the placebo in a study research center on Day 1, and then at in-person visits at Week 4, Week 12, Week 26, and Week 52. On all other days, they will take BIIB141 or the placebo at home. Part 1 lasts up to 52 weeks. - During Part 2, participants from Part 1 will either continue taking BIIB141 or start it if they were taking the placebo. Part 2 will last up to 104 weeks. - In Part 1, participants will have up to 10 visits to their study research center and a phone call at Week 2. In Part 2, participants will have visits at Weeks 4, 8,12, 26, and every 26 weeks after that until they leave the study, and a phone call at Week 2. There will be a final phone call to check on the participants' health 31 days after their last dose. - Each participant will be in the study for up to about 3 years

Condition

  • Friedreich Ataxia

Eligibility

Eligible Ages
Between 2 Years and 15 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Diagnosed with genetically confirmed Friedreich's Ataxia (FA), i.e., homozygous for guanine-adenine-adenine (GAA) repeat expansion in intron-1 of the frataxin gene, or GAA repeat expansion in 1 allele and with point mutations or deletions, or other non-GAA expansion mutations in the other allele. - Symptomatic for FA as confirmed by clinician assessment. a. Children 7 to < 16 years must also have an upright stability score (USS) score of 10 to ≤ 34 at baseline Part 1 RCT:

Exclusion Criteria

  • Glycosylated hemoglobin A1C (HbA1c) > 11% - B-type natriuretic peptide (BNP) > 200 picograms per milliliter (pg/mL) at screening - Ejection fraction (EF) < 40% [based on echocardiogram (ECHO) performed at screening visit] - Clinically significant cardiac disease except mild to moderate cardiomyopathy Part 2 OLE: Eligibility criteria: - Participants have completed Part 1 RCT of the study and no discontinuation criteria have been met - Safety and tolerability data from Part 1 RCT are supportive of continuation in the judgement of the investigator 1. If BNP is > 200 pg/mL at the previous visit assessment, Part 2 Day 1 should be delayed until BNP is < 200 pg/mL. 2. If any other clinically significant laboratory abnormalities are present based on the previous visit assessments, Part 2 Day 1 should be delayed until the abnormalities are resolved. 3. In the event of intercurrent illness or other change in health status of the participant, additional Part 1 screening assessments may be repeated prior to initiation of Part 2, based on the judgement of the investigator in consultation with the medical monitor. 4. If dosing has been interrupted at the end of Part 1, Part 2 Day 1 should be delayed until resumption of study drug treatment is appropriate per Section 8.2. Note: Other protocol-defined Inclusion/Exclusion criteria may apply.

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description
Part 1 of the study is placebo-controlled and Part 2 is open-label.

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Part 1 RCT: Omaveloxolone
Participants will receive a single oral dose of omaveloxolone once a day (QD) for up to 52 weeks in Part 1 of the study.
  • Drug: Omaveloxolone
    Administered as specified in the treatment arm.
    Other names:
    • BIIB141, SKYCLARYS, RTA-408
Placebo Comparator
Part 1 RCT: Placebo
Participants will receive placebo, orally, QD for up to 52 weeks in Part 1 of the study.
  • Drug: Placebo
    Administered as specified in the treatment arm.
Experimental
Part 2 OLE: Omaveloxolone
Participants who complete Part 1 of the study and are eligible will receive a single oral dose of omaveloxolone, QD for up to 104 weeks in the Part 2 OLE study.
  • Drug: Omaveloxolone
    Administered as specified in the treatment arm.
    Other names:
    • BIIB141, SKYCLARYS, RTA-408

Recruiting Locations

Norman Fixel Institute for Neurological Diseases UF Health
Gainesville 4156404, Florida 4155751 32608-3928
Contact:
352-733-3032
s.subramony@neurology.ufl.edu

USF Health Morsani College of Medicine Department of Neurology
Tampa 4174757, Florida 4155751 33612
Contact:
813-974-5909
tzesiewi@hsc.usf.edu

Children's Hospital of Philadelphia - Buerger Center for Advanced Pediatric Care - PIN
Philadelphia 4560349, Pennsylvania 6254927 19104
Contact:
215-590-2242
lynchd@pennmedicine.upenn.edu

St Jude Children's Research Hospital
Memphis 4641239, Tennessee 4662168 38105-3678
Contact:
407-650-7250
richard.finkel@stjude.org

Children's Hospital of the King's Daughters
Norfolk 4776222, Virginia 6254928 23507-1910
Contact:
757-668-6981
Proud.research@chkd.org

More Details

Status
Recruiting
Sponsor
Biogen

Study Contact

Patient Navigator
1-877-223-3576
biogenBRAVE_patientnavigator@thermofisher.com

Detailed Description

The primary objective of Part 1 randomized controlled trial (RCT) is to evaluate the efficacy of omaveloxolone at Week 52 and the secondary objectives are to evaluate safety of omaveloxolone through Week 52 and the concentration of omaveloxolone after single and multiple dose administration. The primary objective of Part 2 open-label extension (OLE) trial is to evaluate the safety and tolerability of long-term omaveloxolone use and the secondary objective is to evaluate the efficacy of omaveloxolone following long-term use.