Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00811889
Other study ID # RTA 402-C-0804
Secondary ID
Status Completed
Phase Phase 2
First received
Last updated
Start date April 30, 2009
Est. completion date December 31, 2010

Study information

Verified date February 2024
Source Biogen
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study assesses the effects of bardoxolone methyl (RTA 402) in patients with type 2 diabetes and chronic kidney disease.


Description:

Bardoxolone methyl (RTA 402) is an Antioxidant Inflammation Modulator (AIM) that is undergoing clinical testing in chronic kidney disease (CKD) and cancer. Bardoxolone methyl and other AIMs inhibit immune-mediated inflammation by restoring redox homeostasis in inflamed tissues by inducing the cytoprotective transcription factor Nrf2. In the diabetic population, adipocytes produce cytokines and mobilize free fatty acids which induce insulin resistance. Resultant hyperglycemia and increased cytokine production induces reactive oxygen and nitrogen species which in turn induce vascular inflammation and endothelial dysfunction. This process causes further activation of NF-kB, creating a vicious cycle of inflammation, vasoconstriction, and ischemia, the end result of which is sclerosis in the kidney and coronary arteries. By inducing Nrf2 and suppressing redox-driven inflammation, we hypothesize that this cycle of inflammation and sclerosis can be abrogated. Based on Phase IIa data, we hypothesize that bardoxolone methyl will improve renal function through suppression of renal oxidative stress, inflammation and improvement of glomerular filtration. This study was previously posted by Reata Pharmaceuticals. In September 2023, sponsorship of the trial was transferred to Biogen. Study Sponsor, originally Reata Pharmaceuticals, Inc., is now Reata Pharmaceuticals, Inc., a wholly owned subsidiary of Biogen.


Recruitment information / eligibility

Status Completed
Enrollment 227
Est. completion date December 31, 2010
Est. primary completion date May 31, 2010
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Male or female patient, at least 18 years of age with known type 2 diabetes, diagnosis of type 2 diabetes should have been made at > 30 years of age (if diabetes developed at a younger age, C-peptide level may be obtained to confirm diagnosis) 2. The average of two eGFR values collected during screening must be within 20 - 45 mL/min/1.73m2, inclusive 3. Patient must be receiving an angiotensin converting enzyme (ACE) inhibitor and/or an angiotensin II receptor blocker (ARB) for at least 3 months prior to screening, where the dose of the ACE inhibitor or the ARB is considered appropriate for that patient, and has been stable and maintained on that dose for at least 8 weeks prior to the Randomization visit 4. For male and female subjects, agreement to use effective contraception during the entire study period and for at least 2 months after the last dose of study drug, unless documentation of infertility exists 5. Women of child-bearing potential, she must have a negative serum pregnancy test at screening and a negative urine pregnancy test confirmed within 72 hours prior to the first dose of study medication 6. Patient is willing and able to cooperate with all aspects of the protocol 7. Patient is willing and able to give written informed consent for study participation. Exclusion Criteria: 1. Type 1 (insulin-dependent; juvenile onset) diabetes, or any history of diabetic ketoacidosis 2. Patients with known non-diabetic renal disease or patients with a history of a renal transplant 3. Patients with a Hemoglobin A1c >10% collected at the Screening A visit 4. Cardiovascular disease as follows: Unstable angina pectoris within 3 months prior to study randomization; Myocardial infarction, coronary artery bypass graft surgery, or percutaneous transluminal coronary angioplasty/stent within 3 months prior to study randomization; Transient ischemic attack within 3 months of study randomization; Cerebrovascular accident within 3 months of study randomization; Obstructive valvular heart disease or hypertrophic cardiomyopathy; Diagnosis of Class III or IV congestive heart failure at any time 5. Systolic blood pressure (BP) >160 mmHg and diastolic blood pressure > 90 determined by the average of three seated readings taken at least 5 minutes apart, at each of two time-points at least 5 days apart during the screening period 6. QTc Fredericia interval > 450 milliseconds determined by the average of values reported by a central reader from three ECGs taken at the Screening A visit. Each of the three ECGs will be obtained using only equipment provided by the Sponsor, and the ECGs shall be obtained at least ten minutes apart. 7. Second or third degree atrioventricular block not successfully treated with a pacemaker 8. Need for chronic (>2 weeks) immunosuppressive therapy, or need for corticosteroids (excluding intraarticular injections,inhaled or nasal steroids) within 3 months of study randomization 9. Evidence of hepatic or biliary dysfunction including total bilirubin >1.0 mg/dL (>17 micromol/L), aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > upper limit of normal (ULN), or alkaline phosphatase >2.0 ULN on ANY screening lab 10. If female, patient is pregnant, nursing or planning a pregnancy 11. Patient has any concurrent clinical conditions that in the judgment of the investigator could either potentially pose a health risk to the patient while involved in the study or could potentially influence the study outcome 12. Patient has known hypersensitivity to any component of the study drug 13. Patient has undergone a diagnostic or interventional procedure requiring a contrast agent within 30 days prior to randomization 14. Change or dose adjustment in any of the following medications within 8 weeks prior to randomization into the study or anticipated change in dose within 30 days following randomization into the study: ACE inhibitors, angiotensin II receptor blockers. 15. Change or dose adjustment of any other anti-hypertensive, and other anti-diabetic medications within 8 weeks prior to randomization or anticipated change in dose within 30 days following randomization into the study 16. Patient has a current history of drug or alcohol abuse as per the investigator's assessment 17. Patient has participated in another investigational study within 30 days prior to randomization into the study or would concomitantly participate in such a study, or has previously participated in a trial involving bardoxolone methyl. 18. Patient is unable to communicate or cooperate with the investigator due to language problems, poor mental development or impaired cerebral function 19. Patient is unable or unwilling to utilize the daily phone diary to track the date and time they take their study medication 20. Patients on any of the following known hepatotoxic agents: Antioxidant N-acetly-cysteine (Mucomyst, Acetadote, Fluimucil, Parvolex), Niacin (nicotinic acid), Dantrium (dantrolene), Naizide (isoniazid), Normodyne (labetalol), Cylert (pemoline), Felbatol (felbamate), Zyflo (zileuton), Tasmar (tolcapone), or Trovan (trovafloxacin). Patients must have been off the aforementioned medications for a minimum of two weeks prior to randomization 21. Patients who are unable or unwilling to discontinue fenofibrate (Antara, Fenoglide, Lipofen, Lofibra, TriCor, Triglide) during the first three months of study treatment. Patients must have been off fenofibrate for a minimum of two weeks prior to randomization 22. Patients who require more than occasional (once or twice weekly) use of non-steroidal anti-inflammatory agents (NSAIDS) 23. Patients with a history of neoplastic disease (except basal or squamous cell carcinoma of the skin) within 5 years prior to the randomization visit; 24. Patients who have had prior dialysis within three months of randomization and/or have not maintained a stable level of kidney function within three months of randomization per Investigator assessment

Study Design


Intervention

Other:
Placebo
Placebo
Drug:
Bardoxolone Methyl (RTA 402)
Oral, Once Daily

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Reata, a wholly owned subsidiary of Biogen

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary To determine the change in eGFR from baseline in patients with type 2 diabetes and CKD (baseline eGFR = 20 - 45 mL/min/1.73m2) after receiving bardoxolone methyl for 6 months (24 weeks) following randomization 6 months (24 weeks)
Primary To determine the safety and tolerability of bardoxolone methyl when administered for 12 months (52 weeks)following randomization to type 2 diabetic patients with CKD (eGFR 20 - 45 mL/min/1.73m2). 1 year (52 weeks)
Secondary To quantify the effects of bardoxolone methyl at two different dosing levels relative to placebo on: Hemoglobin A1c, Serum Creatinine, Urine, Intact PTH albumin/creatinine ratio, Serum Phosphorus, Blood Urea Nitrogen, Uric Acid 6 months (24 weeks) and 1 year (52 weeks)
Secondary To determine the change in eGFR from baseline in patients with type 2 diabetes and CKD (baseline eGFR = 20 - 45 mL/min/1.73m2) after receiving bardoxolone methyl for 12 months (52 weeks) following randomization. 12 months (52 weeks)
See also
  Status Clinical Trial Phase
Completed NCT05219994 - Targeting the Carotid Bodies to Reduce Disease Risk Along the Diabetes Continuum N/A
Completed NCT04056208 - Pistachios Blood Sugar Control, Heart and Gut Health Phase 2
Completed NCT02284893 - Study to Evaluate the Efficacy and Safety of Saxagliptin Co-administered With Dapagliflozin in Combination With Metformin Compared to Sitagliptin in Combination With Metformin in Adult Patients With Type 2 Diabetes Who Have Inadequate Glycemic Control on Metformin Therapy Alone Phase 3
Completed NCT04274660 - Evaluation of Diabetes and WELLbeing Programme N/A
Active, not recruiting NCT05887817 - Effects of Finerenone on Vascular Stiffness and Cardiorenal Biomarkers in T2D and CKD (FIVE-STAR) Phase 4
Active, not recruiting NCT05566847 - Overcoming Therapeutic Inertia Among Adults Recently Diagnosed With Type 2 Diabetes N/A
Recruiting NCT06007404 - Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
Completed NCT04965506 - A Study of IBI362 in Chinese Patients With Type 2 Diabetes Phase 2
Recruiting NCT06115265 - Ketogenic Diet and Diabetes Demonstration Project N/A
Active, not recruiting NCT03982381 - SGLT2 Inhibitor or Metformin as Standard Treatment of Early Stage Type 2 Diabetes Phase 4
Completed NCT04971317 - The Influence of Simple, Low-Cost Chemistry Intervention Videos: A Randomized Trial of Children's Preferences for Sugar-Sweetened Beverages N/A
Completed NCT04496154 - Omega-3 to Reduce Diabetes Risk in Subjects With High Number of Particles That Carry "Bad Cholesterol" in the Blood N/A
Completed NCT04023539 - Effect of Cinnamomum Zeylanicum on Glycemic Levels of Adult Patients With Type 2 Diabetes N/A
Recruiting NCT05572814 - Transform: Teaching, Technology, and Teams N/A
Enrolling by invitation NCT05530356 - Renal Hemodynamics, Energetics and Insulin Resistance: A Follow-up Study
Completed NCT04097600 - A Research Study Comparing Active Drug in the Blood in Healthy Participants Following Dosing of the Current and a New Formulation (D) Semaglutide Tablets Phase 1
Completed NCT03960424 - Diabetes Management Program for Hispanic/Latino N/A
Completed NCT05378282 - Identification of Diabetic Nephropathy Biomarkers Through Transcriptomics
Active, not recruiting NCT06010004 - A Long-term Safety Study of Orforglipron (LY3502970) in Participants With Type 2 Diabetes Phase 3
Completed NCT03653091 - Safety & Effectiveness of Duodenal Mucosal Resurfacing (DMR) Using the Revita™ System in Treatment of Type 2 Diabetes N/A