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A Phase III, Randomized, Double-Blind, Placebo-Controlled Study of AST-120 for Prevention of Chronic Kidney Disease Progression in Patients with Moderate to Severe Chronic Kidney Disease

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2005-004989-17-CZ
Enrollment
980
Registered
2007-09-04
Start date
2007-10-17
Completion date
Unknown
Last updated
2014-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Moderate to Severe Chronic Kidney Disease MedDRA version: 14.0 Level: LLT Classification code 10064848 Term: Chronic kidney disease System Organ Class: 10038359 - Renal and urinary disorders

Interventions

Product Name: AST-120 Product Code: AST-120 Pharmaceutical Form: Capsule, hard INN or Proposed INN: N/A CAS Number: 90597-58-3 Current Sponsor code: AST-120 Other descriptive name: AST-120 Drug Subs

Sponsors

Mitsubishi Tanabe Pharma Corporation
Lead Sponsor
KUREHA CORPORATION
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients that meet all of the following Inclusion Criteria may be enrolled into the study: 1) Age 18 years or older; 2) Moderate to severe CKD (in men: sCr = 2.0 mg/dL[= 177 µmol/L] and = 5.0 mg/dL[= 442 µmol/L]; in women: sCr = 1.5 mg/dL[= 133 µmol/L] and = 5.0 mg/dL [= 442 µmol/L] ), not anticipated to require dialysis or renal transplant within the next 6 months; 3) Patient survival expected to be no less than one year; 4) Serum creatinine in men = 2.0 mg/dL [= 177 µmol/L] and = 5.0 mg/dL [= 442 µmol/L], and in women = 1.5 mg/dL [= 133 µmol/L] and = 5.0 mg/dL [= 442 µmol/L], at the initial Screening visit; 5) Proteinuria / Progressive deterioration in renal function: Urinary total protein to urinary total creatinine ratio (both values measured as mg/dL, or other like units) must be = 0.5 on a spot void obtained at the Screening visit OR If the urinary total protein to urinary total creatinine ratio is 10% higher than the first Screening visit but not > 5.0 mg/dL [= 442 µmol/L] or if the urinary total protein to urinary total creatinine ratio is = 0.5, then the patient may be enrolled (See Appendix E in the Protocol for a listing of qualifying sCr values based on initial and second Screening visit values). 6) Sitting blood pressure = 160/90 mmHg at both Screening and Baseline visits. In addition, blood pressure, if measured, must have been stable in hypertensive patients over the 3 months prior to Screening, with no more than 1 blood pressure reading > 160/90 mmHg; 7) In patients being treated for hypertension, they should be on a stable anti-hypertensive regimen, defined as no changes in anti-hypertensive medications or doses in the last 3 months prior to the Baseline visit, and to include a stable dose of either an ACEI or ARB unless contraindicated; 8) Stable nutritional status; and 9) Willingness to comply with the study and sign a written informed consent. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 980 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 980

Exclusion criteria

Exclusion criteria: Patients that meet any of the following Exclusion Criteria must not be enrolled into the study: 1) Obstructive or reversible cause of kidney disease; 2) Nephrotic syndrome defined as a ratio of urinary total protein to urinary creatinine (both components measured as mg/dL or other like units) of > 6.0 as measured on a spot void; 3) Adult polycystic kidney disease; 4) History of previous kidney transplant; 5) History of alcohol or drug abuse within the past 12 months; 6) Known human immunodeficiency virus (HIV) infection; 7) Received immunosuppressive therapy (including systemic corticosteroids for more than 5 days at a daily dose in excess of 0.1 mg/kg, prednisone equivalent) in the past 3 months, or anticipated to require such treatment during the study course; 8) History of recent (within the past 6 months) accelerated or malignant hypertension; 9) Patients who are likely to require changes in ACEI or ARB regimens during the course of this study; 10) Uncontrolled arrhythmia or severe cardiac disease (New York Heart Association Class III -IV), including myocardial infarction, percutaneous coronary intervention, coronary artery bypass graft, cerebrovascular accident, or transient ischemic attack within the past 6 months; 11) History of malabsorption, inflammatory bowel disease, hiatal hernia, active peptic ulcer, or severe GI dysmotility, not attributable to the use of a phosphate binder; 12) History of cancer within the past 5 years (cervical carcinoma in situ, low-grade cutaneous malignancy, or other low grade malignancy are exemptions); 13) Alanine transaminase (ALT) or aspartate transaminase (AST) values > 2.5 times the upper limit of normal (ULN); 14) Received any investigational agent or participated in a clinical study within the previous 3 months; 15) Presence of any significant medical condition that might create an undue risk with study participation, or significantly confound the collection of safety and efficacy data in this study; or 16) For women of childbearing potential, a positive pregnancy test result of serum beta human chorionic gonadotropin (ßHCG) or unwillingness to use approved single barrier or oral contraception, or unwillingness to be sexually abstinent.

Design outcomes

Primary

MeasureTime frame
Main Objective: • To demonstrate AST-120, added to standard-of-care therapy in moderate to severe CKD, reduces the risk of progression of CKD as assessed by the development of a component of a triple composite endpoint (initiation of dialysis, kidney transplant, or doubling of sCr), when compared with placebo; and • To demonstrate the general safety and tolerability of long-term AST-120 therapy in CKD patients.;Secondary Objective: • To evaluate the efficacy of AST-120 in reducing the risk of developing a component of a quadruple composite endpoint (initiation of dialysis, kidney transplant, doubling of sCr, or death) compared with placebo; • To evaluate the effects of AST-120 versus placebo, on other measures of renal function i.e. sCr, 24 hr urinary protein excretion, creatinine clearance, urea clearance, and 24 hr urinary creatinine excretion; and • To assess the effects of AST-120 versus placebo, on fat-soluble vitamin levels (A, D, E, and K), vitamin B-12, and folate levels. ;Primary end point(s): The primary endpoint will be the occurrence of one component of a triple composite of renal outcomes: initiation of dialysis, kidney transplantation, or doubling of sCr from the value obtained at the Baseline visit (Visit 2). The initial doubled (from Baseline) sCr result will be verified 5-10 days later with another sCr sampling. If this result remains doubled, a confirmatory measurement of sCr doubling will occur at 4-6 weeks after the initial doubled result was reported. If the Baseline value is not available for comparison, the value obtained at the Screening visit (Visit 1) will be used, If a second screening visit is performed then that screening value will be used. An Endpoint Adjudication Committee (EAC) will review and adjudicate all potential endpoint events. ;Timepoint(s) of evaluation of this end point: NA

Secondary

MeasureTime frame
Secondary end point(s): NA;Timepoint(s) of evaluation of this end point: NA

Countries

Argentina, Brazil, Canada, Czech Republic, European Union, France, Italy, Mexico, Russian Federation, Ukraine, United States

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026