Chronic Kidney DiseaseNCT00572663
Optimalization of Nephroprotection Using N-Acetylcysteine
A study testing ACC (N-acetylcysteine) 1200 mg in people with Chronic Kidney Disease and Proteinuria, run by Medical University of Gdansk.
Trial summary
The main purpose of the study is find whether the addition of N-acetylcysteine (antioxidant) to dual renin-angiotensin-aldosterone system blockade involving angiotensin converting enzyme inhibitor and AT-1 angiotensin II receptor blocker leads to the reduction of proteinuria, main prognostic marker of chronic kidney… Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Chronic Kidney Disease, Proteinuria
- What is being tested?
- ACC (N-acetylcysteine) 1200 mg
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Jan 2005to not given
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Chronic kidney disease
- Stable proteinuria above 300 mg/24 hours (no variations above 25% in the last 6 months)
- Normal or slightly impaired stable renal function defined as serum creatinine level below 1.7 mg/dl (eGFR > 45 ml/min)
Who cannot join
- Nephrotic syndrome
- Steroids or other immunosuppressive treatment minimum during six months before the study
- Diabetes mellitus
- Potassium serum level > 5.1 mEq/L
- Albumin serum level < 2.0mg/dL
- Creatinine serum level >2 mg/dl
Show all 16Show fewer
- Current diagnosis of heart failure New York Heart Association (NYHA) Class II-IV
- Clinically significant valvular heart disease or second or third degree heart block without a pacemaker
- History of hypertensive encephalopathy, cerebrovascular accident or transient ischemic cerebral attack
- History of myocardial infarction, unstable angina pectoris, coronary bypass surgery, or any percutaneous coronary intervention
- History of malignancy including leukemia and lymphoma (but not basal cell skin carcinoma) within the past five years
- Pregnant or nursing women
- Any surgical or medical condition which might significantly alter the absorption, distribution, metabolism, or excretion of study drugs.
- History of alcohol abuse
- NSAID abuse (more than 2 doses per week)
- Known or suspected contraindications to the study medications, including history of allergy to ACE inhibitors, AT-1 receptor blockers and N-acetylcysteine
About this study
Official title: The Effect of N-Acetylcysteine on Proteinuria and Markers of Tubular Injury in Non-Diabetic Patientswith Chronic Kidney Disease-Placebo Controlled, Randomized,Open, Cross-Over Study
The main purpose of the study is find whether the addition of N-acetylcysteine (antioxidant) to dual renin-angiotensin-aldosterone system blockade involving angiotensin converting enzyme inhibitor and AT-1 angiotensin II receptor blocker leads to the reduction of proteinuria, main prognostic marker of chronic kidney disease progression.
Read the detailed description
The renin-angiotensin-aldosterone system (RAAS) plays an important role in the progression of chronic kidney diseases (CKD), and inhibition of the RAAS with angiotensin-converting enzyme inhibitors (ACEI) and angiotensin II type 1 receptor blockers (ARB) may retard CKD progression. Dual pharmacological blockade of the RAAS with ACEI and ARB is recommended as a standard renoprotective management at least in patients with nondiabetic proteinuric CKD. However, neither ACEI nor ARB, even in high doses or in concomitant usage, abrogate the progression of CKD completely. Innovative approaches are needed to keep patients with CKD off dialysis. Additional antioxidant (N-acetylcysteine) may prove to be such beneficial therapeutic concept. To shed more light on this issue, we performed a randomised open controlled study to evaluate the influence of triple N-acetylcysteine and RAAS therapy on surrogate markers of kidney injury, i.e. proteinuria, markers of tubular involvement and kidney fibrosis.
- Conditions
- Chronic Kidney Disease, Proteinuria
- Being tested
- ACC (N-acetylcysteine) 1200 mg
- Keywords
- Proteinuria, Antioxidant, N-acetylcysteine
- Medical subject headings
- Renal Insufficiency, Chronic, Proteinuria
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ACC (N-acetylcysteine) 1200 mgDrug
N-acetylcysteine (ACC) 1200 mg In the 8-weeks run-in period angiotensin converting enzyme inhibitors and/or angiotensin II subtype 1 receptor antagonists were administered to achieve the target blood pressure below 130/80 mmHg. Next, they were randomly assigned to add (or not) 1200 mg N-acetylcysteine in two active treatment periods lasting 8 weeks each
What is being measured
The primary outcome is the main question the study is designed to answer.
Investigate the antiproteinuric effect of adding antioxidant, N-acetylcysteine to the combination therapy with angiotensin converting enzyme inhibitor and AT-1 receptor blocker in maximal recommended doses.
Secondary outcomes (1)
Investigate the effect of the study intervention on urine excretion of N-acetyl-β-D-glucosaminidase, alfa1-microglobulin and amino-terminal propeptide of type III procollagen
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Dec 2007 (estimated)
- Study startJan 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Chronic Kidney DiseaseStudies of the same condition, open and under way.
- More trials run by Medical University of GdanskThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
Sponsor and investigators
- Lead sponsor
- Medical University of Gdansk
- Sponsor type
- University, hospital or other
- Investigators
- Boleslaw Rutkowski, MD PhD, Principal investigator, Department of Nephrology Transplantology and Internal Medicine. Medical University of Gdansk
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00572663
- Sponsor's protocol ID
- ST-4/NAC/01
- Status last verified
- Dec 2007
- First submitted
- 12 Dec 2007
- Last updated
- 13 Dec 2007
- Results posted
- No
Publications
Colombijn JM, Hooft L, Jun M, Webster AC, Bots ML, Verhaar MC, Vernooij RW. Antioxidants for adults with chronic kidney disease. Cochrane Database Syst Rev. 2023 Nov 2;11(11):CD008176. doi: 10.1002/14651858.CD008176.pub3.
PubMed 37916745
Study at a glance
From the registry record, last updated by the sponsor on 13 Dec 2007. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of N-Acetylcysteine on Proteinuria and Markers of Tubular Injury in Non-Diabetic Patientswith Chronic Kidney Disease-Placebo Controlled, Randomized,Open, Cross-Over Study
- ClinicalTrials.gov ID
- NCT00572663
- Acronym / sponsor ID
- ST-4/NAC/01
- Conditions
- Chronic Kidney Disease, Proteinuria
- Keywords
- Proteinuria, Antioxidant, N-acetylcysteine
- Study type
- Interventional
- Recruitment status
- Completed
- Lead sponsor
- Medical University of GdanskUniversity, hospital or other
- Study start
- Jan 2005
- First posted
- 13 Dec 2007 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The main purpose of the study is find whether the addition of N-acetylcysteine (antioxidant) to dual renin-angiotensin-aldosterone system blockade involving angiotensin converting enzyme inhibitor and AT-1 angiotensin II receptor blocker leads to the reduction of proteinuria, main prognostic marker of chronic kidney disease progression.
Detailed description
The renin-angiotensin-aldosterone system (RAAS) plays an important role in the progression of chronic kidney diseases (CKD), and inhibition of the RAAS with angiotensin-converting enzyme inhibitors (ACEI) and angiotensin II type 1 receptor blockers (ARB) may retard CKD progression. Dual pharmacological blockade of the RAAS with ACEI and ARB is recommended as a standard renoprotective management at least in patients with nondiabetic proteinuric CKD. However, neither ACEI nor ARB, even in high doses or in concomitant usage, abrogate the progression of CKD completely. Innovative approaches are needed to keep patients with CKD off dialysis. Additional antioxidant (N-acetylcysteine) may prove to be such beneficial therapeutic concept. To shed more light on this issue, we performed a randomised open controlled study to evaluate the influence of triple N-acetylcysteine and RAAS therapy on surrogate markers of kidney injury, i.e. proteinuria, markers of tubular involvement and kidney fibrosis.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Chronic kidney disease
- Stable proteinuria above 300 mg/24 hours (no variations above 25% in the last 6 months)
- Normal or slightly impaired stable renal function defined as serum creatinine level below 1.7 mg/dl (eGFR > 45 ml/min)
Key exclusion criteria (16 listed)
- Nephrotic syndrome
- Steroids or other immunosuppressive treatment minimum during six months before the study
- Diabetes mellitus
- Potassium serum level > 5.1 mEq/L
- Albumin serum level < 2.0mg/dL
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ACC (N-acetylcysteine) 1200 mgN-acetylcysteine (ACC) 1200 mg In the 8-weeks run-in period angiotensin converting enzyme inhibitors and/or angiotensin II subtype 1 receptor antagonists were administered to achieve the target blood pressure below 130/80 mmHg. Next, they were randomly assigned to add (or not) 1200 mg N-acetylcysteine in two active treatment periods lasting 8 weeks each | Drug | – |
Primary outcome
Investigate the antiproteinuric effect of adding antioxidant, N-acetylcysteine to the combination therapy with angiotensin converting enzyme inhibitor and AT-1 receptor blocker in maximal recommended doses.
1 secondary outcome
Investigate the effect of the study intervention on urine excretion of N-acetyl-β-D-glucosaminidase, alfa1-microglobulin and amino-terminal propeptide of type III procollagen
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Dec 2007.
- Derived from this study: PubMed 37916745Colombijn JM, Hooft L, Jun M, Webster AC, Bots ML, Verhaar MC, Vernooij RW. Antioxidants for adults with chronic kidney disease. Cochrane Database Syst Rev. 2023 Nov 2;11(11):CD008176. doi: 10.1002/14651858.CD008176.pub3.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Boleslaw Rutkowski, MD PhD principal investigator
Department of Nephrology Transplantology and Internal Medicine. Medical University of Gdansk
Questions about this trial
What is this clinical trial studying?
A study testing ACC (N-acetylcysteine) 1200 mg in people with Chronic Kidney Disease and Proteinuria, run by Medical University of Gdansk.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Dec 2007. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Investigate the antiproteinuric effect of adding antioxidant, N-acetylcysteine to the combination therapy with angiotensin converting enzyme inhibitor and AT-1 receptor blocker in maximal recommended doses.. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00572663, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Dec 2007.