- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05079789
Amiloride in Nephrotic Syndrome (AMILOR)
Randomized, Controlled Interventional Trial to Investigate the Efficacy of Amiloride for the Treatment of Edema in Human Nephrotic Syndrome
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The monocenter randomized-controlled AMILOR trial investigates the efficacy of the ENaC blocker amiloride in reducing edema in nephrotic syndrome compared with standard therapy with the loop diuretic furosemide.
Patients with acute nephrotic syndrome are randomized to receive amiloride (starting dose 5 mg) or furosemide (starting dose 40 mg) for 16 days. The target number of patients is n = 18 per arm. Exclusion criteria include GFR <30ml/min/1.73m², AKIN 1 and 2, hypotension, hyper-/ hypokalemia, and hyponatremia. Overhydration is quantified by bioimpedance spectroscopy. Depending on the course of overhydration, dose adjustments (day 2, 5, 8, 12) or addition of HCT (day 8) are performed during the course of the study.
Primary endpoint is decrease in overhydration at day 8, secondary endpoints include decrease in overhydration at day 16, as well as body weight, edema volume, blood pressure, urine volume, natriuresis at day 8 and 16, and need for dose adjustments and co-medication with HCT. Plasma potassium, sodium, and creatinine concentrations are measured as safety parameters.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Contact
- Name: Anja Schork, MD
- Phone Number: +49 7071 2982712
- Email: Anja.Schork@med.uni-tuebingen.de
Study Contact Backup
- Name: Ferruh Artunc, Prof., MD
- Phone Number: +49 7071 2982712
- Email: Ferruh.Artunc@med.uni-tuebingen.de
Study Locations
-
-
Baden-Wuerttemberg
-
Tuebingen, Baden-Wuerttemberg, Germany, 72076
- University Hospital Tuebingen
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Acute nephrotic syndrome with proteinuria > 3 g/day and formation of edema.
- Age ≥ 18 years at the time of signing the informed consent.
- Understand and voluntarily sign an informed consent document prior to any study related assessments/procedures.
- Ability to adhere to the study visit schedule and other protocol requirements.
- Use of adequate thrombosis prophylaxis due to the increased risk of thrombosis in nephrotic syndrome and the expected fluctuations in volume balance during study participation.
- Subject (male or female) is willing to use highly effective methods of contraception according to the "Clinical trial fertility group" recommendations.
- Female Patients of childbearing potential (WOCBP) must agree to pregnancy testing before inclusion in the study.
- Female Patients must agree to abstain from breastfeeding during study participation and 28 days after study drug discontinuation.
- All subjects must agree not to share medication.
Exclusion Criteria:
- Severe reduction of kidney function: Creatinine clearance or calculated GFR < 30 mL/min/1.73m² or acute kidney injury KDIGO stage 2 or 3 or anuria.
- Hypovolemia or dehydration.
- Uncontrolled diabetes mellitus.
- Hypotension, systolic blood pressure < 90 mmHg.
- Hyperkalemia, plasma potassium concentration > 4.8 mmol/l.
- Hypokalemia, plasma potassium concentration < 3.3 mmol/l.
- Hyponatremia, plasma sodium concentration < 128 mmol/l.
- Hypercalcemia, ionized calcium > 2.0 mmol/l or total albumin corrected calcium > 3.0 mmol/l.
- Signs of cardiac decompensation (orthopnoe, dyspnoe NYHA IV).
- Hepatic coma or precoma.
- Symptoms of gout.
- Current therapy with potassium-sparing diuretics (e.g. spironolactone) or potassium supplements.
- Women during pregnancy and lactation.
- History of hypersensitivity to the investigational medicinal product, comparator or co-medication or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product, comparator or co-medication.
- Any other clinical condition that would jeopardize the patient's safety while participating in this clinical trial.
- Active participation in other clinical trials or observation period of competing trials.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Amiloride
Treatment wirh Amiloride, start dose 5 mg
|
Treatment with amiloride, start dose 5 mg
|
Active Comparator: Furosemide
Treatment with Furosemide, start dose 40 mg
|
Treatment with furosemide, start dose 40 mg
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Decrease of overhydration
Time Frame: 8 days
|
Decrease of overhydration (OH) measured by bioimpedance spectroscopy
|
8 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Decrease of overhydration
Time Frame: 16 days
|
Decrease of overhydration (OH) measured by bioimpedance spectroscopy
|
16 days
|
Decrease of body weight
Time Frame: 8 and 16 days
|
Decrease of body weight
|
8 and 16 days
|
Decrease of edema cercumference
Time Frame: 8 and 16 days
|
Decrease of edema cercumference, measured at the lower leg
|
8 and 16 days
|
Decrease of blood pressure
Time Frame: 8 and 16 days
|
Decrease of systolic and diastolic blood pressure
|
8 and 16 days
|
Increase of urine volume and natriuresis
Time Frame: 8 and 16 days
|
Increase of urine volume and natriuresis, measured in 24 hours collected urine
|
8 and 16 days
|
Course of plasma renin activity and serum aldosterone concentration
Time Frame: 8 and 16 days
|
Course of plasma renin activity and serum aldosterone concentration, measured in blood samples
|
8 and 16 days
|
Changes of dose of study medication and need for co-medication
Time Frame: 8 and 16 days
|
Number of required changes of dose of study medication and need for co-medication with HCT
|
8 and 16 days
|
Occurrence of adverse events
Time Frame: 16 days
|
Occurrence of adverse events
|
16 days
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Ferruh Artunc, Prof., MD, University Hospital Tuebingen
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Metabolic Diseases
- Kidney Diseases
- Urologic Diseases
- Disease
- Water-Electrolyte Imbalance
- Female Urogenital Diseases
- Female Urogenital Diseases and Pregnancy Complications
- Urogenital Diseases
- Male Urogenital Diseases
- Syndrome
- Nephrotic Syndrome
- Nephrosis
- Hypernatremia
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Natriuretic Agents
- Membrane Transport Modulators
- Diuretics
- Sodium Channel Blockers
- Diuretics, Potassium Sparing
- Sodium Potassium Chloride Symporter Inhibitors
- Acid Sensing Ion Channel Blockers
- Epithelial Sodium Channel Blockers
- Furosemide
- Amiloride
Other Study ID Numbers
- AmiloridNS-01
- 2019-002607-18 (EudraCT Number)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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