A Phase 2/3 Trial of the Efficacy and Safety of Bardoxolone Methyl in Patients With Alport Syndrome - CARDINAL

Last updated: February 1, 2024
Sponsor: Reata, a wholly owned subsidiary of Biogen
Overall Status: Completed

Phase

2/3

Condition

Nephritis

Alport's Syndrome

Kidney Disease

Treatment

Bardoxolone Methyl

Placebo Oral Capsule

Clinical Study ID

NCT03019185
RTA 402-C-1603
  • Ages 12-60
  • All Genders

Study Summary

This international, multi-center, Phase 2/3 trial will study the safety, tolerability, and efficacy of bardoxolone methyl in qualified patients with Alport syndrome. The Phase 2 portion of the trial will be open-label and enroll up to 30 patients. The Phase 3 portion of the trial will be double-blind, randomized, placebo-controlled and will enroll up to 180 patients.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Male and female patients 12 ≤ age ≤ 60 upon study consent;
  • Diagnosis of Alport syndrome by genetic testing (documented mutation in a geneassociated with Alport syndrome, including COL4A3, COL4A4, or COL4A5) or histologicassessment using electron microscopy;
  • Screening eGFR ≥ 30 and ≤ 90 mL/min/1.73 m2. The two eGFR values collected at Screen Aand Screen B visits used to determine eligibility must have a percent difference ≤ 25%;
  • Albumin to creatinine ratio (ACR) ≤ 3500 mg/g at Screen B visit;
  • If receiving an angiotensin-converting enzyme (ACE) inhibitor and/or an angiotensin IIreceptor blocker (ARB), the medications must remain the same for at least 6 weeksprior to the Screen A visit and during Screening. The dosage of ACE inhibitor and/orARB must also be stable for 2 weeks prior to the Screen A visit and remain the samethrough Day 1 (i.e., no change in dosage or medication). Patients not taking an ACEinhibitor and/or ARB because of a medical contraindication must have discontinuedtreatment at least 8 weeks prior to the Screen A visit;
  • Adequate bone marrow reserve and organ function at the Screen A visit
  • Able to swallow capsules;
  • Willing and able to comply with scheduled visits, treatment plan, laboratory tests,and other study procedures;

Exclusion

Exclusion Criteria:

  • Prior exposure to bardoxolone methyl;
  • Ongoing chronic hemodialysis or peritoneal dialysis therapy;
  • Renal transplant recipient;
  • B-type natriuretic peptide (BNP) level > 200 pg/mL at Screen A visit;
  • Uncontrolled diabetes (HbA1c > 11.0%) at Screen A visit;
  • Acute dialysis or acute kidney injury within 12 weeks prior to Screen A visit orduring Screening;
  • Serum albumin < 3 g/dL at Screen A visit;
  • History of clinically significant left-sided heart disease and/or clinicallysignificant cardiac disease, including but not limited to any of the following:
  • Uncontrolled systemic hypertension as evidenced by sitting systolic blood pressure (BP) > 160 mm Hg or sitting diastolic BP > 100 mm Hg at Screen A visit after a periodof rest;
  • Systolic BP < 90 mm Hg at Screen A visit after a period of rest;
  • History of malignancy within 5 years prior to Screen A visit, with the exception oflocalized skin or cervical carcinomas;
  • Systemic immunosuppression for more than 2 weeks, cumulatively, within the 12 weeksprior to randomization or anticipated need for immunosuppression during the study;
  • Untreated or uncontrolled active bacterial, fungal, or viral infection;
  • Participation in other interventional clinical studies within 30 days prior to Day 1;
  • Unwilling to practice acceptable methods of birth control (both males who havepartners of child-bearing potential and females of childbearing potential) duringScreening, while taking study drug, and for at least 30 days after the last dose ofstudy drug is ingested;
  • Women who are pregnant or breastfeeding;
  • Known hypersensitivity to any component of the study drug

Study Design

Total Participants: 187
Treatment Group(s): 2
Primary Treatment: Bardoxolone Methyl
Phase: 2/3
Study Start date:
March 02, 2017
Estimated Completion Date:
October 30, 2020

Study Description

This international, multi-center, Phase 2/3 trial will study the safety, tolerability, and efficacy of bardoxolone methyl in qualified patients with Alport syndrome. The Phase 2 portion of the trial will be open-label and enroll up to 30 patients. The Phase 3 portion of the trial will be double-blind, randomized, placebo-controlled and will enroll up to 180 patients.

Patients in the Phase 2 cohort will receive bardoxolone methyl throughout the study. Patients in the Phase 3 cohort will be randomized 1:1 to either bardoxolone methyl or placebo and randomization will be stratified by baseline albumin to creatinine ratio (ACR). Patients randomized to placebo will remain on placebo throughout the study, undergoing sham titration.

All patients in the study will follow the same visit and assessment schedule. Following randomization on Day 1, patients will be scheduled to be assessed during treatment at Weeks 1, 2, 4, 6, 8, 12, 24, 36, 48, 52, 64, 76, 88, 100, and 104 and by telephone contact on Days 3, 10, 21, 31, 38, and 45. Patients will not receive study drug during a 4-week withdrawal period between Weeks 48 and 52. They will re-start treatment at Week 52 at the same dose they received at Week 48 and will continue study drug treatment through Week 100. Patients will also be scheduled to be assessed at an in person follow up visit at Week 104, four weeks after the end of treatment.

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

Connect with a study center

  • South Western Sydney Local Health Network

    Liverpool, New South Wales 2170
    Australia

    Site Not Available

  • Royal Brisbane and Women's Hospital

    Herston, Queensland 2145
    Australia

    Site Not Available

  • Melbourne Renal Research Group

    Melbourne, VIC 3073
    Australia

    Site Not Available

  • John Hunter Hospital

    New Lambton, NSW 2305
    Australia

    Site Not Available

  • John Hunter Hospital

    New Lambton Heights, NSW 2305
    Australia

    Site Not Available

  • Sydney Children's Hospital

    Sydney, NSW 2031
    Australia

    Site Not Available

  • The Children's Hospital at Westmead

    Westmead, NSW 2145
    Australia

    Site Not Available

  • The Hospital for Sick Children

    Toronto, Ontario M5G 1X8
    Canada

    Site Not Available

  • CHU Grenoble- Grenoble France

    La Tronche, 38700
    France

    Site Not Available

  • CHU Lyon-Hopital Edouard Herriot

    Lyon, 69003
    France

    Site Not Available

  • Hopital Necker-Universite Paris Descartes

    Paris, 75015
    France

    Site Not Available

  • University of Medicine Gottingen

    Göttingen, 37075
    Germany

    Site Not Available

  • University Children's Hospital Heidelberg

    Heidelberg, 69120
    Germany

    Site Not Available

  • St Marianna University Hospital

    Kawasaki,
    Japan

    Site Not Available

  • Kobe University Hospital

    Kobe,
    Japan

    Site Not Available

  • JCHO Cyukyo Hospital

    Nagoya,
    Japan

    Site Not Available

  • Japanese Red Cross Nagoya Daini Hospital

    Nagoya,
    Japan

    Site Not Available

  • Kitano Hospital

    Osaka,
    Japan

    Site Not Available

  • Saga University Hospital

    Saga,
    Japan

    Site Not Available

  • Saitama Children's Medical Center

    Saitama,
    Japan

    Site Not Available

  • JCHO Sendai Hospital

    Sendai,
    Japan

    Site Not Available

  • Juntendo University Hospital

    Tokyo,
    Japan

    Site Not Available

  • Tokyo Metropolitan Children's Medical Center

    Tokyo,
    Japan

    Site Not Available

  • Puerto Rico Clinical & Translational Research Center

    Rio Piedras, 00935
    Puerto Rico

    Site Not Available

  • Fundacio Puigvert

    Barcelona, 340-08025
    Spain

    Site Not Available

  • Servicio de Nefrologia pediatrica

    Barcelona, 119-08035
    Spain

    Site Not Available

  • Hospital Virgen de la Arrixaca

    El Palmar, 30120
    Spain

    Site Not Available

  • Edinburgh University

    Edinburgh,
    United Kingdom

    Site Not Available

  • University of Glasgow

    Glasgow, G12 8QQ
    United Kingdom

    Site Not Available

  • Royal Free Hospital

    London, NW3 2QG
    United Kingdom

    Site Not Available

  • University of Alabama at Birmingham

    Birmingham, Alabama 35294
    United States

    Site Not Available

  • Arizona Kidney Disease and Hypertension Research Services, PLLC

    Phoenix, Arizona 85308
    United States

    Site Not Available

  • Scripps Clinic, Nephrology

    La Jolla, California 92037
    United States

    Site Not Available

  • Academic Medical Research Institute

    Los Angeles, California 90022
    United States

    Site Not Available

  • David Geffen School of Medicine at UCLA

    Los Angeles, California 90095
    United States

    Site Not Available

  • Valley Children's Healthcare

    Madera, California 93636
    United States

    Site Not Available

  • General Clinical Research Center - Parnassus

    San Francisco, California 94143
    United States

    Site Not Available

  • University of California San Francisco - Children's Renal Center

    San Francisco, California 94143
    United States

    Site Not Available

  • Denver Nephrologists PC

    Denver, Colorado 80230
    United States

    Site Not Available

  • South Florida Research Institute

    Lauderdale Lakes, Florida 33313
    United States

    Site Not Available

  • Emory University School of Medicine and Children's Healthcare of Atlanta

    Atlanta, Georgia 30322
    United States

    Site Not Available

  • Boise Kidney & Hypertension Institute

    Caldwell, Idaho 83605
    United States

    Site Not Available

  • Boise Kidney & Hypertension Institute

    Meridian, Idaho 83642
    United States

    Site Not Available

  • NorthShore University Health System

    Evanston, Illinois 60201
    United States

    Site Not Available

  • Biolab Research, LLC

    Rockville, Maryland 20852
    United States

    Site Not Available

  • Tufts Medical Center

    Boston, Massachusetts 02111
    United States

    Site Not Available

  • University of Michigan

    Ann Arbor, Michigan 48109
    United States

    Site Not Available

  • University of Minnesota - Division of Pediatric Nephrology

    Minneapolis, Minnesota 55454
    United States

    Site Not Available

  • Children's Research Institute - The Children's Mercy Hospital

    Kansas City, Missouri 64108
    United States

    Site Not Available

  • Washington University School of Medicine

    Saint Louis, Missouri 63110
    United States

    Site Not Available

  • Hackensack Meridian School of Medicine

    Hackensack, New Jersey 07601
    United States

    Site Not Available

  • Nephrology Associates, PC

    Flushing, New York 11355
    United States

    Site Not Available

  • Columbia University Nephrology

    New York, New York 10032
    United States

    Site Not Available

  • Duke University Medical Center

    Durham, North Carolina 27701
    United States

    Site Not Available

  • Brookview Hills Research Associates, PLLC

    Winston-Salem, North Carolina 27103
    United States

    Site Not Available

  • Akron Children's Hospital

    Akron, Ohio 44308
    United States

    Site Not Available

  • Akron Nephrology Associates

    Akron, Ohio 44302
    United States

    Site Not Available

  • University of Cincinnati

    Cincinnati, Ohio 45220
    United States

    Site Not Available

  • Cleveland Clinic

    Cleveland, Ohio 44195
    United States

    Site Not Available

  • Oregon Health & Science University

    Portland, Oregon 97239
    United States

    Site Not Available

  • Children's Hospital of Philadelphia (CHOP)

    Philadelphia, Pennsylvania 19104
    United States

    Site Not Available

  • University of Pittsburgh School of Medicine - Division of Pediatric Nephrology

    Pittsburgh, Pennsylvania 15224
    United States

    Site Not Available

  • The Warren Alpert Medical School of Brown University

    Providence, Rhode Island 02903
    United States

    Site Not Available

  • South Carolina Nephrology & Hypertension Center, Inc

    Orangeburg, South Carolina 29118
    United States

    Site Not Available

  • Renal Disease Research Institute

    Dallas, Texas 75235
    United States

    Site Not Available

  • Southwest Houston Research

    Houston, Texas 77099
    United States

    Site Not Available

  • Clinical Advancement Center

    San Antonio, Texas 78215
    United States

    Site Not Available

  • University of Utah Health

    Salt Lake City, Utah 84132
    United States

    Site Not Available

  • Advanced Clinical Research

    West Jordan, Utah 84088
    United States

    Site Not Available

  • Nephrology Associates of Northern Virginia

    Fairfax, Virginia 22033
    United States

    Site Not Available

  • Seattle Children's

    Seattle, Washington 98105
    United States

    Site Not Available

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