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Early Mineralocorticoid Receptor Antagonist Therapy for Low-Renin Essential Hypertension (EMERALD)

2026. november 6. frissítette: China National Center for Cardiovascular Diseases

Early Mineralocorticoid Receptor Antagonist Therapy for Low-Renin Essential Hypertension: A Randomized Controlled Study

This study aims to evaluate the efficacy and safety of early initiation of eplerenone, a second-generation mineralocorticoid receptor antagonist, compared with standard antihypertensive treatment in adults with low-renin essential hypertension. The study will assess whether an eplerenone-based treatment strategy provides greater blood pressure reduction, improves blood pressure control, and reduces antihypertensive medication burden compared with standard treatment.

A tanulmány áttekintése

Állapot

Még nincs toborzás

Körülmények

Beavatkozás / kezelés

Részletes leírás

The EMERALD Trial is a prospective, randomized, open-label, controlled study designed to compare the efficacy and safety of early initiation of a second-generation mineralocorticoid receptor antagonist with standard antihypertensive treatment in adults with low-renin essential hypertension.

A total of 128 eligible participants will be enrolled and randomly assigned in a 1:1 ratio to either an intervention group or a control group.

In the intervention group, participants will receive an eplerenone-based treatment strategy, starting with eplerenone 50 mg once daily. The dose may be gradually increased to 50 mg twice daily, and additional antihypertensive medications may be added according to blood pressure response and treatment tolerability.

In the control group, participants will receive standard antihypertensive treatment based on current clinical guidelines and routine practice. Medication doses may be gradually increased or treatment regimens adjusted according to blood pressure response and treatment tolerability.

In both groups, treatment will be adjusted to achieve an office seated blood pressure below 140/90 mmHg.

Participants will be followed for 24 weeks, with scheduled clinic visits at baseline and weeks 4, 12, and 24, supplemented by remote follow-up between visits.

The primary outcome is the change in mean daytime systolic blood pressure from baseline to week 12, assessed by 24-hour ambulatory blood pressure monitoring. Secondary outcomes include changes in office and ambulatory blood pressure, blood pressure control rates, treatment adjustments, time to blood pressure control, and antihypertensive medication burden assessed using defined daily doses.

Exploratory outcomes include changes in cardiac structure and function, urinary albumin-to-creatinine ratio, and circulating renin and aldosterone levels. Treatment safety will be evaluated throughout the study, with particular attention to hyperkalemia, changes in kidney function, symptomatic hypotension, and other adverse events.

Tanulmány típusa

Beavatkozó

Beiratkozás (Becsült)

128

Fázis

  • 4. fázis

Kapcsolatok és helyek

Ez a rész a vizsgálatot végzők elérhetőségeit, valamint a vizsgálat lefolytatásának helyére vonatkozó információkat tartalmazza.

Tanulmányi kapcsolat

Tanulmányi helyek

  • Kína
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kína, 100037
        • Fuwai Hospital

Részvételi kritériumok

A kutatók olyan embereket keresnek, akik megfelelnek egy bizonyos leírásnak, az úgynevezett jogosultsági kritériumoknak. Néhány példa ezekre a kritériumokra a személy általános egészségi állapota vagy a korábbi kezelések.

Jogosultsági kritériumok

Tanulmányozható életkorok

18 év és régebbi (Felnőtt, Idősebb felnőtt)

Egészséges önkénteseket fogad

Nem

Tanulmányozható nemek

Összes

Leírás

Inclusion Criteria:

  • Age 18 years or older.
  • Either untreated hypertension, defined as mean seated office systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg, or hypertension currently treated with no more than two antihypertensive agents.
  • Plasma direct renin concentration <12 mU/L after the protocol-specified medication washout: at least 4 weeks for mineralocorticoid receptor antagonists, epithelial sodium channel inhibitors, and other diuretics; and at least 2 weeks for angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, and beta-blockers.
  • Willing and able to provide written informed consent.

Exclusion Criteria:

  • Systolic blood pressure ≥180 mmHg or diastolic blood pressure ≥120 mmHg.
  • Current use of mineralocorticoid receptor antagonists or other medications that interfere with renin or aldosterone measurements, including glucocorticoids, oral estrogens, and sodium-glucose cotransporter 2 inhibitors.
  • Pregnancy, breastfeeding, or women of childbearing potential who are not using reliable contraception.
  • Body mass index ≥37.5 kg/m².
  • Serum potassium ≥5.0 mmol/L.
  • Diabetes mellitus with glycated hemoglobin ≥7.5%.
  • Chronic kidney disease with estimated glomerular filtration rate ≤45 mL/min/1.73 m² or urine dipstick protein >2+.
  • New York Heart Association functional class II-IV heart failure, coronary artery disease, or a history of transient ischemic attack, stroke, or atrial fibrillation.
  • Hepatic impairment with alanine aminotransferase or aspartate aminotransferase ≥2 times the upper limit of normal.
  • Secondary hypertension or another condition affecting blood pressure regulation, including licorice abuse, primary hyperparathyroidism, primary aldosteronism, autonomous cortisol secretion, hyperthyroidism, pheochromocytoma, renal artery stenosis, or known monogenic low-renin hypertension.
  • Known allergy or intolerance to any study medication or its components.
  • Inability to tolerate the required medication washout period.
  • Any other condition that, in the investigator's judgment, makes participation unsuitable.

Tanulási terv

Ez a rész a vizsgálati terv részleteit tartalmazza, beleértve a vizsgálat megtervezését és a vizsgálat mérését.

Hogyan készül a tanulmány?

Tervezési részletek

  • Elsődleges cél: Kezelés
  • Kiosztás: Véletlenszerűsített
  • Beavatkozó modell: Párhuzamos hozzárendelés
  • Maszkolás: Egyetlen

Fegyverek és beavatkozások

Résztvevő csoport / kar
Beavatkozás / kezelés
Kísérleti: Early Eplerenone-Based Treatment

Participants will receive stepped antihypertensive treatment starting with eplerenone 50 mg orally once daily. Treatment will be intensified as needed by sequentially adding amlodipine 5 mg once daily, increasing eplerenone to 50 mg twice daily, increasing amlodipine to 5 mg twice daily, adding hydrochlorothiazide 12.5 mg once daily, adding doxazosin 4 mg once daily, and increasing hydrochlorothiazide to 25 mg once daily. Participants taking two antihypertensive drugs before washout will generally start with eplerenone plus amlodipine. Treatment adjustments will depend on blood pressure, tolerability, and safety assessments, with a target seated office blood pressure below 140/90 mmHg. Treatment will continue for 24 weeks.
Drog: Eplerenone

Eplerenone will be administered orally at 50 mg once daily as the initial treatment in the experimental arm. The dose may be increased to 50 mg twice daily according to the prespecified treatment algorithm, blood pressure response, tolerability, serum potassium, and kidney function. Treatment will continue for 24 weeks, with dose reduction or interruption when clinically indicated.
Aktív összehasonlító: Standard Treatment

Participants will receive stepped antihypertensive treatment starting with telmisartan 40 mg orally once daily. Treatment will be intensified as needed by sequentially adding amlodipine 5 mg once daily, increasing telmisartan to 80 mg once daily, increasing amlodipine to 5 mg twice daily, adding hydrochlorothiazide 12.5 mg once daily, adding doxazosin 4 mg once daily, and increasing hydrochlorothiazide to 25 mg once daily. Participants taking two antihypertensive drugs before washout will generally start with telmisartan plus amlodipine. Treatment adjustments will depend on blood pressure, tolerability, and safety assessments, with a target seated office blood pressure below 140/90 mmHg. Treatment will continue for 24 weeks.
Drog: Telmisartan

Telmisartan will be administered orally at 40 mg once daily as the initial treatment in the active comparator arm. The dose may be increased to 80 mg once daily according to the prespecified treatment algorithm, blood pressure response, and tolerability. Treatment will continue for 24 weeks, with dose reduction or interruption when clinically indicated.

Mit mér a tanulmány?

Elsődleges eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Change From Baseline in Mean Daytime Ambulatory Systolic Blood Pressure at Week 12
Időkeret: Baseline and Week 12

Change in mean daytime systolic blood pressure, measured in mmHg by 24-hour ambulatory blood pressure monitoring, from baseline to Week 12. Mean daytime systolic blood pressure is the average of all valid daytime systolic readings. A valid recording requires at least 70% of scheduled readings, including at least 20 daytime readings and 7 nighttime readings. Change is calculated as the Week 12 value minus the baseline value; a negative value indicates a reduction in blood pressure.
Baseline and Week 12

Másodlagos eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Change From Baseline in Office Systolic Blood Pressure
Időkeret: Baseline, Week 12, and Week 24

Change in seated office systolic blood pressure, measured in mmHg, from baseline to each assessment. Measurements are obtained after at least 5 minutes of seated rest using a standardized upper-arm blood pressure monitor.
Baseline, Week 12, and Week 24
Change From Baseline in Office Diastolic Blood Pressure
Időkeret: Baseline, Week 12, and Week 24

Change in seated office diastolic blood pressure, measured in mmHg, from baseline to each assessment. Measurements are obtained after at least 5 minutes of seated rest using a standardized upper-arm blood pressure monitor.
Baseline, Week 12, and Week 24
Percentage of Participants Achieving Office Blood Pressure Control
Időkeret: Week 12 and Week 24

Percentage of participants with seated office systolic blood pressure below 140 mmHg and diastolic blood pressure below 90 mmHg at each assessment.
Week 12 and Week 24
Percentage of Participants Achieving an Office Blood Pressure Response
Időkeret: Baseline, Week 12, and Week 24

Percentage of participants with a reduction from baseline in office systolic blood pressure of at least 10 mmHg, a reduction in office diastolic blood pressure of at least 5 mmHg, or achievement of office blood pressure below 140/90 mmHg.
Baseline, Week 12, and Week 24
Number of Antihypertensive Treatment Adjustments
Időkeret: From randomization through Week 24

Cumulative number of antihypertensive treatment adjustments per participant, including dose increases, addition of a drug, and discontinuation of a drug.
From randomization through Week 24
Time to First Documented Office Blood Pressure Control
Időkeret: From randomization through Week 24

Time, measured in weeks from randomization, to the first study visit at which seated office systolic blood pressure is below 140 mmHg and diastolic blood pressure is below 90 mmHg.
From randomization through Week 24
Mean 24-Hour Ambulatory Systolic Blood Pressure
Időkeret: Week 12 and Week 24

Mean systolic blood pressure, measured in mmHg, calculated from all valid readings during 24-hour ambulatory blood pressure monitoring at each assessment.
Week 12 and Week 24
Mean 24-Hour Ambulatory Diastolic Blood Pressure
Időkeret: Week 12 and Week 24

Mean diastolic blood pressure, measured in mmHg, calculated from all valid readings during 24-hour ambulatory blood pressure monitoring at each assessment.
Week 12 and Week 24
Mean Nighttime Ambulatory Systolic Blood Pressure
Időkeret: Week 12 and Week 24

Mean systolic blood pressure, measured in mmHg, calculated from all valid nighttime readings during ambulatory blood pressure monitoring at each assessment.
Week 12 and Week 24
Mean Nighttime Ambulatory Diastolic Blood Pressure
Időkeret: Week 12 and Week 24

Mean diastolic blood pressure, measured in mmHg, calculated from all valid nighttime readings during ambulatory blood pressure monitoring at each assessment.
Week 12 and Week 24
Mean Daytime Ambulatory Diastolic Blood Pressure
Időkeret: Week 12 and Week 24

Mean diastolic blood pressure, measured in mmHg, calculated from all valid daytime readings during ambulatory blood pressure monitoring at each assessment.
Week 12 and Week 24
Antihypertensive Medication Burden at Achievement of Target Office Blood Pressure
Időkeret: At achievement of target office blood pressure during the 24-week treatment period

Total antihypertensive medication burden required to achieve office blood pressure below 140/90 mmHg, expressed in World Health Organization defined daily dose equivalents. For each drug, the prescribed daily dose is divided by its defined daily dose, and the resulting values are summed across drugs.
At achievement of target office blood pressure during the 24-week treatment period

Egyéb eredményintézkedések

Eredménymérő
Intézkedés leírása
Időkeret
Change From Baseline in Left Ventricular Mass Index
Időkeret: Baseline and Week 24

Change in echocardiographically measured left ventricular mass indexed to body surface area, expressed in g/m².
Baseline and Week 24
Change From Baseline in Left Atrial Volume Index
Időkeret: Baseline and Week 24

Change in left atrial volume indexed to body surface area, measured by echocardiography and expressed in mL/m²
Baseline and Week 24
Change From Baseline in Urinary Albumin-to-Creatinine Ratio
Időkeret: Baseline and Week 24

Change in urinary albumin-to-creatinine ratio, calculated by dividing urinary albumin concentration by urinary creatinine concentration
Baseline and Week 24
Change From Baseline in Plasma Aldosterone Concentration
Időkeret: Baseline and Week 24

Change in plasma aldosterone concentration, measured using a standardized chemiluminescent immunoassay.
Baseline and Week 24
Change From Baseline in Direct Renin Concentration
Időkeret: Baseline and Week 24

Change in direct renin concentration, expressed in mU/L and measured using the DiaSorin LIAISON chemiluminescent immunoassay
Baseline and Week 24
Change From Baseline in Aldosterone-to-Renin Ratio
Időkeret: Baseline and Week 24

Change in the ratio of plasma aldosterone concentration to direct renin concentration
Baseline and Week 24

Együttműködők és nyomozók

Itt találhatja meg a tanulmányban érintett személyeket és szervezeteket.

Szponzor

China National Center for Cardiovascular Diseases

Publikációk és hasznos linkek

A vizsgálattal kapcsolatos információk beviteléért felelős személy önkéntesen bocsátja rendelkezésre ezeket a kiadványokat. Ezek bármiről szólhatnak, ami a tanulmányhoz kapcsolódik.

Általános kiadványok

Tanulmányi rekorddátumok

Ezek a dátumok nyomon követik a ClinicalTrials.gov webhelyre benyújtott vizsgálati rekordok és összefoglaló eredmények benyújtásának folyamatát. A vizsgálati feljegyzéseket és a jelentett eredményeket a Nemzeti Orvostudományi Könyvtár (NLM) felülvizsgálja, hogy megbizonyosodjon arról, hogy megfelelnek-e az adott minőség-ellenőrzési szabványoknak, mielőtt közzéteszik őket a nyilvános weboldalon.

Tanulmány főbb dátumok

Tanulmány kezdete (Becsült)

2026. december 1.

Elsődleges befejezés (Becsült)

2027. december 31.

A tanulmány befejezése (Becsült)

2028. április 30.

Tanulmányi regisztráció dátumai

Először benyújtva

2026. november 6.

Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak

2026. november 6.

Első közzététel (Tényleges)

2026. november 12.

Tanulmányi rekordok frissítései

Utolsó frissítés közzétéve (Tényleges)

2026. november 12.

Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak

2026. november 6.

Utolsó ellenőrzés

2026. október 1.

Több információ

A tanulmányhoz kapcsolódó kifejezések

Kulcsszavak

További vonatkozó MeSH feltételek

Egyéb vizsgálati azonosító számok

  • 2026-3206

Terv az egyéni résztvevői adatokhoz (IPD)

Tervezi megosztani az egyéni résztvevői adatokat (IPD)?

ELDÖNTETLEN

IPD terv leírása

The plan for sharing de-identified individual participant data has not yet been determined. The decision will consider participant consent, ethics committee requirements, institutional policies, and applicable data protection regulations. This statement will be updated once a decision has been made.

Gyógyszer- és eszközinformációk, tanulmányi dokumentumok

Egy amerikai FDA által szabályozott gyógyszerkészítményt tanulmányoz

Nem

Egy amerikai FDA által szabályozott eszközterméket tanulmányoz

Nem

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