This extended access study will assess the long-term safety and tolerability of bardoxolone methyl in qualified patients with chronic kidney disease (CKD) who previously participated in one of the qualifying clinical studies with bardoxolone methyl. Patients will remain in the study until bardoxolone methyl is available through commercial channels or until patient withdrawal, whichever is sooner.



Eligible Ages
Over 12 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • Patients who are participating (or who have participated) in qualifying studies and who have not been required to discontinue study treatment for protocol or safety reasons and who have completed required End-of-Treatment and/or Follow-up visits in a prior clinical study with bardoxolone methyl and who, according to the assessment of the investigator, have a potential positive benefit-risk assessment for participating in the trial. - Meets the following eligibility criteria based on assessments from the prior qualifying study (last on-treatment visit) or from a screening visit, if applicable: 1. Not expected to reach end stage kidney disease (ESKD) or nephrotic syndrome within 12 weeks of study enrollment, in the investigator's judgement; subjects with eGFR <20 ml/min/1.73m2 should be discussed with the medical monitor before enrollment (e.g., such subjects with an average rate of eGFR decline > 1.0 ml/min/1.73m2 per month in the 3 months prior to eligibility assessment may not be eligible); 2. BNP < 200 pg/mL at the last on-treatment visit in the prior qualifying study or at a new screening visit, if applicable; 3. No occurrence of a cardiovascular serious adverse event in the prior qualifying study or in the interval between the end of the qualifying study and the screening visit, if applicable. - Willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other study procedures. - Evidence of a personally signed and dated informed consent document (and assent form if necessary) indicating that the patient (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any protocol-mandated procedures.

Exclusion Criteria

  • Participation in other investigational clinical studies involving interventional products being tested or used in a way different from the approved form or when used for an unapproved indication; - Patients who have an ongoing SAE from a clinical study that is assessed by the investigator as related to bardoxolone methyl; - Unwilling to practice acceptable methods of birth control (both males who have partners of childbearing potential and females of childbearing potential) while screening, taking study drug and 30 days after the last study drug dose; - Women who are pregnant or breastfeeding; - Patient is, in the opinion of the investigator, unable to comply with the requirements of the study protocol or is unsuitable for the study for any reason; - Known hypersensitivity to any component of the study drug.

Study Design

Phase 3
Study Type
Intervention Model
Single Group Assignment
Primary Purpose
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Bardoxolone methyl
Adult participants received bardoxolone methyl capsules, once daily (QD) at a starting dose of 5 milligrams (mg), followed by dose- escalation to 10 mg at Week 2 (Day 14 ± 3), and to 20 mg at Week 4 (Day 28 ± 3). Based on the eligibility UACR >300 milligrams per gram (mg/g), the dose was increased to 30 mg starting from Week 6 (Day 42 ± 3) until the end of the study. Participants under 18 years of age received bardoxolone methyl capsules at a starting dose of 5 mg every other day during the first week and QD during the second week of the study, followed by dose-escalation to 10 mg at Week 2 and to 20 mg at Week 4. Based on the eligibility UACR >300 mg/g, the dose was increased to 30 mg starting from Week 6 until the end of the study.
  • Drug: Bardoxolone methyl
    Bardoxolone methyl capsules
    Other names:
    • RTA 402

More Details

Reata, a wholly owned subsidiary of Biogen

Study Contact

Detailed Description

Study Sponsor, originally Reata Pharmaceuticals, Inc., is now Reata Pharmaceuticals, Inc., a wholly owned subsidiary of Biogen.


Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.