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A Double-Blind, Randomized, Placebo-Controlled Safety Study Evaluating the Effects of Residual Renal Function (RFF) in Patients With End-Stage Renal Disease and Type 2 Diabetes Mellitus on Peritoneal Dialysis

Primary Purpose

End-Stage Renal Disease, Type 2 Diabetes Mellitus

Status
Withdrawn
Phase
Phase 2
Locations
Study Type
Interventional
Intervention
Bardoxolone Methyl 20 mg
Placebo
Sponsored by
Reata Pharmaceuticals, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for End-Stage Renal Disease

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Patients must have ESRD and been on PD for longer than 3 months
  2. Patients must have had a diagnosis of T2DM prior to starting dialysis
  3. Patients must have RRF, as defined by the mean of urea and creatinine clearance on a 24 hour urine collection, ≥ 25 Liters/week/1.73 m2 documented in the four months prior to the Screen A visit
  4. Patients must have RRF, as defined by the mean of urea and creatinine clearances on a 24 hour urine collection, ≥ 25 Liters/week/1.73 m2 at both the Screen A and Screen B visits
  5. The RRF value obtained at the Screen B visit, must not be less than 50% of the RRF value obtained at the Screen A visit
  6. Patients must be at least 18 years of age
  7. Patients must have a mean systolic blood pressure (SBP) on three readings at both Screen A and Screen B visits ≤ 160 mmHg and ≥ 90 mmHg
  8. Patients must have a mean diastolic blood pressure (DBP) on three readings at both Screen A and Screen B visits < 100 mmHg and ≥ 40 mmHg
  9. Patients must be willing to practice methods of birth control (both males who have partners of childbearing potential and females of childbearing potential) during screening, while taking study drug and for at least 30 days after the last dose of study drug is ingested
  10. Patients must be willing and able to cooperate with all aspects of the protocol
  11. Patients must be willing and able to give written informed consent to participate in the study. They must provide consent for access to medical data according to appropriate local data protection legislation and allow authorization to access medical records that describe events captured in the endpoints

Exclusion Criteria:

  1. History of Autosomal Dominant Polycystic Kidney Disease
  2. Currently Active Systemic Lupus Erythematosus
  3. History of Hepatitis B Surface Antigen +
  4. History of Hepatitis C Antibody + being treated with antiviral therapy
  5. History of an organ transplant
  6. A planned renal transplant from a living donor during the study
  7. History of hospitalization for congestive heart failure or pulmonary edema within 12 weeks before study randomization
  8. History of cirrhosis of the liver
  9. History of amyloidosis or light chain nephropathy
  10. History of hemoglobin A1c level > 11.0% (97 mmol/mol) within 12 weeks before study randomization
  11. History of recently active cardiovascular disease defined as:

    1. Unstable angina pectoris within 12 weeks before study randomization
    2. Myocardial infarction, coronary artery bypass graft surgery, or percutaneous transluminal coronary angioplasty/stent within 12 weeks before study randomization
    3. Cerebrovascular accident, including transient ischemic attack within 12 weeks before study randomization
  12. History of a diagnostic or interventional procedure that required intravenous administration of an iodinated contrast agent or gadolinium within 12 weeks before study randomization
  13. History of known severe obstructive valvular heart disease or severe obstructive hypertrophic cardiomyopathy
  14. History of known 2o or 3o atrioventricular block not successfully treated with a pacemaker
  15. History or resuscitated sudden cardiac death
  16. History of an automatic implantable defibrillator
  17. QTc greater than 0.50 seconds on an ECG obtained during either Screen A or Screen B visits
  18. A serum magnesium level less than 1.4 meq/L on either Screen A or Screen B visit laboratory test results
  19. History of systemic immunosuppression for more than 15 days, cumulatively, within the 12 weeks prior to study randomization or anticipated need for more than 15 days of immunosuppression during the study
  20. Total bilirubin, aspartate transaminase (AST), or alanine transaminase (ALT) level greater than the upper limit of normal (ULN) or alkaline phosphatase level greater than two times the ULN on either the Screen A and Screen B visit laboratory test results
  21. Known hypersensitivity to any component of the study drug
  22. Current history of drug or alcohol abuse, as assessed by the investigator
  23. History of clinically significant infection requiring intravenous administration of antibiotics or hospitalization within 12 weeks before study randomization
  24. In patients who have been on peritoneal dialysis for ≥ 6 months, two or more episodes of peritonitis in the 6 months before study randomization. In patients who have been on peritoneal dialysis for <6 months, one episode of peritonitis before study randomization
  25. History of a diagnosis or treatment of a malignancy in the past 5 years, excluding non-melanoma skin cancer and carcinoma in situ of the cervix
  26. History of a clinical condition that, in the judgment of the investigator, could potentially pose a health risk to the patient while involved in the study
  27. Patient is unable to communicate or cooperate with the investigator due to language problems, poor mental development, or impaired cerebral function
  28. Participation in a clinical study involving any intervention within 30 days prior to Screen A visit, concurrent participation in such a study, or participation in a prior clinical study involving bardoxolone methyl in any form
  29. Female patients who are pregnant, intend to become pregnant during this study, or are nursing

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm Type

    Placebo Comparator

    Experimental

    Arm Label

    Placebo

    Bardoxolone Methyl

    Arm Description

    Outcomes

    Primary Outcome Measures

    Number of Adverse Events

    Secondary Outcome Measures

    Type of Adverse Events
    Change in Residual Renal Function
    Maximum observed concentration
    Time to maximum observed concentration
    Area under the plasma concentration-time curve
    Only the first 8 patients randomized will have the PK drawn and hours 2, 4, 8, and 24. All patients will have the PK drawn at 30, 60, 90, 120, 150 and 180 days.
    Area under the curve
    Only the first 8 patients randomized

    Full Information

    First Posted
    March 30, 2012
    Last Updated
    November 1, 2012
    Sponsor
    Reata Pharmaceuticals, Inc.
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    1. Study Identification

    Unique Protocol Identification Number
    NCT01576887
    Brief Title
    A Double-Blind, Randomized, Placebo-Controlled Safety Study Evaluating the Effects of Residual Renal Function (RFF) in Patients With End-Stage Renal Disease and Type 2 Diabetes Mellitus on Peritoneal Dialysis
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    November 2012
    Overall Recruitment Status
    Withdrawn
    Why Stopped
    IDMC recommendation for safety concerns
    Study Start Date
    July 2012 (undefined)
    Primary Completion Date
    October 2012 (Actual)
    Study Completion Date
    October 2013 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    Reata Pharmaceuticals, Inc.

    4. Oversight

    5. Study Description

    Brief Summary
    This study is a multi-center, double-blinded, randomized, study of bardoxolone methyl treatment in patients with End-Stage Renal Disease (ERSD) and Type 2 Diabetes Mellitus (T2DM) on peritoneal dialysis.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    End-Stage Renal Disease, Type 2 Diabetes Mellitus

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 2
    Interventional Study Model
    Parallel Assignment
    Masking
    ParticipantCare ProviderInvestigatorOutcomes Assessor
    Allocation
    Randomized
    Enrollment
    0 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Placebo
    Arm Type
    Placebo Comparator
    Arm Title
    Bardoxolone Methyl
    Arm Type
    Experimental
    Intervention Type
    Drug
    Intervention Name(s)
    Bardoxolone Methyl 20 mg
    Intervention Description
    Oral, once daily
    Intervention Type
    Drug
    Intervention Name(s)
    Placebo
    Intervention Description
    Oral, once daily
    Primary Outcome Measure Information:
    Title
    Number of Adverse Events
    Time Frame
    Approximately 17 months
    Secondary Outcome Measure Information:
    Title
    Type of Adverse Events
    Time Frame
    Approximately 17 months
    Title
    Change in Residual Renal Function
    Time Frame
    Baseline to 6 months
    Title
    Maximum observed concentration
    Time Frame
    Day 0, 30, 60, 90, 120, 150, 180, 210
    Title
    Time to maximum observed concentration
    Time Frame
    Day 0, 30, 60, 90, 120, 150, 180, 210
    Title
    Area under the plasma concentration-time curve
    Description
    Only the first 8 patients randomized will have the PK drawn and hours 2, 4, 8, and 24. All patients will have the PK drawn at 30, 60, 90, 120, 150 and 180 days.
    Time Frame
    2, 4, 8, 24 hours, 30, 60, 90, 120, 150 and 180 days
    Title
    Area under the curve
    Description
    Only the first 8 patients randomized
    Time Frame
    2, 4, 8 and 24 hours

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Patients must have ESRD and been on PD for longer than 3 months Patients must have had a diagnosis of T2DM prior to starting dialysis Patients must have RRF, as defined by the mean of urea and creatinine clearance on a 24 hour urine collection, ≥ 25 Liters/week/1.73 m2 documented in the four months prior to the Screen A visit Patients must have RRF, as defined by the mean of urea and creatinine clearances on a 24 hour urine collection, ≥ 25 Liters/week/1.73 m2 at both the Screen A and Screen B visits The RRF value obtained at the Screen B visit, must not be less than 50% of the RRF value obtained at the Screen A visit Patients must be at least 18 years of age Patients must have a mean systolic blood pressure (SBP) on three readings at both Screen A and Screen B visits ≤ 160 mmHg and ≥ 90 mmHg Patients must have a mean diastolic blood pressure (DBP) on three readings at both Screen A and Screen B visits < 100 mmHg and ≥ 40 mmHg Patients must be willing to practice methods of birth control (both males who have partners of childbearing potential and females of childbearing potential) during screening, while taking study drug and for at least 30 days after the last dose of study drug is ingested Patients must be willing and able to cooperate with all aspects of the protocol Patients must be willing and able to give written informed consent to participate in the study. They must provide consent for access to medical data according to appropriate local data protection legislation and allow authorization to access medical records that describe events captured in the endpoints Exclusion Criteria: History of Autosomal Dominant Polycystic Kidney Disease Currently Active Systemic Lupus Erythematosus History of Hepatitis B Surface Antigen + History of Hepatitis C Antibody + being treated with antiviral therapy History of an organ transplant A planned renal transplant from a living donor during the study History of hospitalization for congestive heart failure or pulmonary edema within 12 weeks before study randomization History of cirrhosis of the liver History of amyloidosis or light chain nephropathy History of hemoglobin A1c level > 11.0% (97 mmol/mol) within 12 weeks before study randomization History of recently active cardiovascular disease defined as: Unstable angina pectoris within 12 weeks before study randomization Myocardial infarction, coronary artery bypass graft surgery, or percutaneous transluminal coronary angioplasty/stent within 12 weeks before study randomization Cerebrovascular accident, including transient ischemic attack within 12 weeks before study randomization History of a diagnostic or interventional procedure that required intravenous administration of an iodinated contrast agent or gadolinium within 12 weeks before study randomization History of known severe obstructive valvular heart disease or severe obstructive hypertrophic cardiomyopathy History of known 2o or 3o atrioventricular block not successfully treated with a pacemaker History or resuscitated sudden cardiac death History of an automatic implantable defibrillator QTc greater than 0.50 seconds on an ECG obtained during either Screen A or Screen B visits A serum magnesium level less than 1.4 meq/L on either Screen A or Screen B visit laboratory test results History of systemic immunosuppression for more than 15 days, cumulatively, within the 12 weeks prior to study randomization or anticipated need for more than 15 days of immunosuppression during the study Total bilirubin, aspartate transaminase (AST), or alanine transaminase (ALT) level greater than the upper limit of normal (ULN) or alkaline phosphatase level greater than two times the ULN on either the Screen A and Screen B visit laboratory test results Known hypersensitivity to any component of the study drug Current history of drug or alcohol abuse, as assessed by the investigator History of clinically significant infection requiring intravenous administration of antibiotics or hospitalization within 12 weeks before study randomization In patients who have been on peritoneal dialysis for ≥ 6 months, two or more episodes of peritonitis in the 6 months before study randomization. In patients who have been on peritoneal dialysis for <6 months, one episode of peritonitis before study randomization History of a diagnosis or treatment of a malignancy in the past 5 years, excluding non-melanoma skin cancer and carcinoma in situ of the cervix History of a clinical condition that, in the judgment of the investigator, could potentially pose a health risk to the patient while involved in the study Patient is unable to communicate or cooperate with the investigator due to language problems, poor mental development, or impaired cerebral function Participation in a clinical study involving any intervention within 30 days prior to Screen A visit, concurrent participation in such a study, or participation in a prior clinical study involving bardoxolone methyl in any form Female patients who are pregnant, intend to become pregnant during this study, or are nursing

    12. IPD Sharing Statement

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    A Double-Blind, Randomized, Placebo-Controlled Safety Study Evaluating the Effects of Residual Renal Function (RFF) in Patients With End-Stage Renal Disease and Type 2 Diabetes Mellitus on Peritoneal Dialysis

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