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Antiproteinuric effect of three different types of diuretics in patients with chronic proteinuric nephrophaties.

Randomised, open-label, crossover clinical trial to evaluate the antiproteinuric effect of three different types of diuretics (hydrochlorothiazide, amiloride and spironolactone) in patients with chronic proteinuric nephropathies.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2011-001929-24-ES
Enrollment
Unknown
Registered
2011-08-09
Start date
2011-09-19
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Chronic proteinuric nephropathies

Interventions

Product Name: Hidroclorotiazida Pharmaceutical Form: Tablet INN or Proposed INN: Hidroclorotiazida Concentration unit: mg milligram(s) Concentration type: equal Concentration number: 50- Product Name

Sponsors

Fundación para la Investigación Biomédica del Hospital 12 de Octubre
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients over 18 years and younger than 80 years. Patients with diabetes or chronic kidney disease with albuminuria among nondiabetic 300-3000 mg/24 h. Patients with stable kidney function during the last 3 months: serum creatinine 60 mL/min/1.73 m2 (Grades 1 and 2 as K-DOQI guidelines included in Annex B of the Protocol). Patients who are receiving ACE inhibitors as a treatment prior antiproteinuric, ARA II or a combination of both. Patients who are able to understand the purpose and risks of the trial, which has been fully informed and have finally given written informed consent according to ICH-GCP. Patients who can not read and write but adequately understand verbal information provided by the investigator (or designee) verbal informed consent is granted against an independent witness signed the informed consent document. 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 45 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 45

Exclusion criteria

Exclusion criteria: Patients allergic or intolerant to hydrochlorothiazide, spironolactone or amiloride. Patients who are or have been involved in another clinical trial and / or are taking or have taken an experimental drug not registered in the last 28 days. Patients with poorly controlled blood pressure (SBP> 160 mm Hg or DBP> 100 mm Hg). Patients with a history of cardiovascular events (stroke, ischemic heart disease) in the last 6 months. Patients treated with steroids, NSAIDs or other immunosuppressants. Patients with a history of renovascular disease, obstructive uropathy, autoimmune diseases, cancer, drug abuse. Patients who are pregnant or breastfeeding. Pacients who do not sign informed consent. Low likelihood of compliance with scheduled visits in the protocol.

Design outcomes

Primary

MeasureTime frame
Main Objective: The main objective is to compare the percentage reduction of albuminuria/proteinuria in patients with proteinuric chronic kidney disease of any etiology treated with hydrochlorothiazide vs amiloride+hydrochlorothiazide vs spironolactone.;Secondary Objective: To evaluate the percentage of proteinuric patients reduces by 30 and 50% in each group of diuretic therapy. Knowing renal function (creatinine clearance and MDRD-4) at the beginning and end of each group of diuretic therapy. Determine changes in blood pressure in each treatment group. Determine changes in plasma electrolytes (sodium, potassium) with different types of diuretics. To determine the changes in urinary electrolytes (sodium, potassium) in each group of diuretic therapy. Determine changes in plasma renin and aldosterone with different types of diuretics. To evaluate the safety and tolerability of different treatment regimens.;Primary end point(s): The primary efficacy parameter is to compare the percentage reduction of albuminuria / proteinuria in patients with proteinuric renal disease of any etiology treated with hydrochlorothiazide versus hydrochlorothiazide + amiloride versus spironolactone.;Timepoint(s) of evaluation of this end point: The primary end point will be evaluated for each treatment, at baseline and at the end of each treatment.

Secondary

MeasureTime frame
Secondary end point(s): 1. Percentage of patients with a reduction in proteinuria over 25%. 2. Determination of renal function assessed by serum creatinine and GFR determined by MDRD-4 after each treatment period. 3. Changes in weight and BMI after each treatment period. 4. Changes in SBP and DBP after each treatment period. 5. Percentage of patients with hyperkalemia (K> 5.5 mEq / L) during the treatment period. 6. Changes in plasma renin and aldosterone after each treatment period. 7. Changes in uric acid levels after each treatment period. 8. Changes in urinary sodium values ??after each treatment period. 9. Percentage of patients who abandon treatment. 10. Percentage of patients with adverse effects in each treatment group.;Timepoint(s) of evaluation of this end point: All of them will be evaluated for each treatment, at baseline and at the end of each treatment.

Countries

Spain

Contacts

Public ContactServicio de Nefrología

Hospital Universitario 12 Octubre

emoralesr@senefro.org34913908284

Outcome results

None listed

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