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Withdrawn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
About this trial
This is an interventional treatment trial for End-Stage Renal Disease
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
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
NCT ID
NCT01576887
First Posted
March 30, 2012
Last Updated
November 1, 2012
Sponsor
Reata Pharmaceuticals, Inc.
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
Learn more about this trial
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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