- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03174171
Open-label Study on Treatment of Primary Aldosteronism With Everolimus
Study Overview
Detailed Description
The purpose of this study is to evaluate everolimus as an aldosterone-lowering drug in treatment of primary aldosteronism.
Primary aldosteronism is defined as a group of disorders in which aldosterone production is inappropriately high and relatively autonomous from regulation by the renin-angiotensin-aldosterone system. It often presents with increased blood pressure and constitutes the most common cause of endocrine hypertension. It is associated with an increased risk of cardiovascular complications, structural and functional renal abnormalities and metabolic syndrome. The goal of primary aldosteronism treatment is to prevent mortality and morbidity associated with hypertension, hypokalemia and direct aldosterone-associated organ damage.
Treatment depends on the underlying cause of primary aldosteronism. In general, patients with aldosterone-producing adenoma and unilateral adrenal hyperplasia are recommended to have adrenalectomy while patients with bilateral adrenal hyperplasia and those not willing to obtain surgery are offered targeted treatment with mineralocorticoid receptor antagonists. However, the use of mineralocorticoid receptor antagonist is related to side effects that include breast tenderness, gynecomastia, sexual dysfunction and menstrual irregularities.
The primary purpose of this proof-of-concept study is to evaluate whether inhibition of adrenocortical mammilian target of rapamycin (mTOR) signalling with everolimus decreases circulating aldosterone levels. The study also aims to determine whether potential changes in aldosterone levels result solely from a direct effect of everolimus on the adrenal gland or could be caused by changes in aldosterone metabolism and/or levels of canonical regulators of adrenal function (ACTH, AngII). The secondary purpose of this study is to test whether everolimus treatment ameliorates hypertension, improves cardiac function and to better understand molecular mechanisms leading to the development of primary aldosteronism.
Participants will receive Everolimus 0.75mg b.i.d. orally for a duration of 14 days. Blood pressure measurements, haemodynamic measurements, blood tests, 24h urine collection and saline Infusion tests will be conducted in order to compare changes in blood pressure, cardiac and kidney function, aldosterone and steroid hormone metabolite levels, activity of the renin-angiotensin-aldosterone system before and after treatment.
In patients undergoing adrenalectomy, adrenocortical cells will be isolated and primary adrenocortical cell cultures will be established from excised adrenal glands. Cultured cells will be treated with mTOR inhibitors and their proliferation and steroidogenic potential will be assessed. Cells treated with mTOR inhibitors will be subjected to transcriptomic, proteomic and phosphoproteomic analyses that will allow identification of mTOR signaling effectors in the adrenal cortex and to better understand molecular mechanisms leading to the development of primary aldosteronism.
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
Basel Stadt
-
Basel, Basel Stadt, Switzerland, 4031
- University Hospital Basel
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patient with primary aldosteronism
- Age ≥ 18 years
- Office blood pressure <160/90 mmHg on antihypertensive therapy
- For subjects with reproductive potential, willingness to use contraceptive measures adequate to prevent the subject or the subject's partner from becoming pregnant during the study
Exclusion Criteria:
- Signs of current infection
- Neutropenia (leukocyte count < 1.5 × 109/L or absolute neutrophil count (ANC) < 0.5 × 109/L)
- Anemia (hemoglobin < 11 g/dL for males, < 10 g/dL for females)
- Clinically significant kidney or liver disease (creatinine > 1.5 mg/dL, aspartate aminotransferase (AST)/alanine aminotransferase (ALT) > 2 × ULN, alkaline phosphatase > 2 × ULN, total bilirubin > 1.5 × ULN)
- Current immunosuppressive treatment or documented immunodeficiency
- Uncontrolled congestive heart failure
- Currently pregnant or breastfeeding
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Intervention
Everolimus 0.75 mg b.i.d.
orally for 14 days.
|
Everolimus 0.75 mg b.i.d.
orally for 14 days.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Aldosterone level
Time Frame: 28 days
|
Change in aldosterone level after saline infusion test after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Blood pressure values
Time Frame: 28 days
|
Change in mean systolic and diastolic blood pressure during standardized office and home blood pressure measurement after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Kidney function
Time Frame: 28 days
|
Change in albumin in 24 hour-urine after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Steroid hormones in serum
Time Frame: 28 days
|
Change in steroid hormones in serum in 24h-urine after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Level of plasma renin activity
Time Frame: 28 days
|
Change in Renin-angiotensin-aldosterone System after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Level of Potassium
Time Frame: 28 days
|
Change in potassium level and need of potassium substitution after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Steroid hormone metabolites in urine
Time Frame: 28 days
|
Change in steroid hormone metabolites in 24h-urine after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Level of plasma ACTH
Time Frame: 28 days
|
Change in the Renin-angiotensin-aldosterone system after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Level of plasma angiotensin II (ATII)
Time Frame: 28 days
|
Change in the Renin-angiotensin-aldosterone system after the treatment period (Day 15) and after the washout period (Day 28) compared to baseline (Day 0).
|
28 days
|
Collaborators and Investigators
Investigators
- Principal Investigator: Marc Y Donath, Prof., University Hospital, Basel, Switzerland
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
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- EPA
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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