- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT00865124
Role of Mineralocorticoid Receptor in Diabetic Cardiovascular Disease
Aldosterone is a significant mediator of cardiovascular injury associated with heart failure and the cardiovascular benefits of mineralocorticoid receptor blockade are additive to those of angiotensin converting enzyme inhibitors or angiotensin II (ANGII) receptor blockers. This study will test the hypothesis that mineralocorticoid receptor (MR) antagonists exert beneficial cardiovascular effects, specifically by decreasing vascular injury and improving vascular function. A randomized, double-blind study will be conducted, in which participants with Type 2 Diabetes Mellitus will undergo a series of assessments to test heart, blood vessel, and kidney function at baseline, and after 2 and 6 months of treatment with one of the following drugs:
- spironolactone
- hydrochlorothiazide (HCTZ) plus potassium
- placebo
In the event of insufficient funds, randomization to the placebo arm will be stopped and primary assessment of outcomes will occur at baseline and after 6 months of treatment.
Studieoversikt
Status
Intervensjon / Behandling
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
-
Massachusetts
-
Boston, Massachusetts, Forente stater, 02115
- Brigham and Women's Hospital
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- age 18-70 years
- type 2 diabetes mellitus
- with or without hypertension
Exclusion Criteria:
- ischemic changes on resting electrocardiogram,
- clinical evidence of heart disease (angina, heart failure, unstable angina),cerebrovascular or peripheral vascular disease,
- significant cardiac arrhythmias,
- aortic stenosis,
- 2nd or 3rd degree atrio-ventricular block, sinus node disease, or symptomatic bradycardia,
- bronchospastic lung disease with active wheezing,
- known hypersensitivity to adenosine,
- hemoglobin A1C (HbA1c) > 8.5%, *
- gout (If not already taking HCTZ),
- the use of Rosiglitazone,**
- estimated glomerular filtration rate (eGFR) < 60 ml/min,
- serum potassium > 5.0 mmol/L,
- use of potassium-sparing diuretics,**
- current smoker,*
- pregnancy,
- renal disease not related to diabetes mellitus,
- uncontrolled hypertension, systolic blood pressure (BP) >160 mm Hg and diastolic BP >100 mm Hg,*
- use of cyclic hormone replacement therapy
- past intolerance of angiotensin-converting enzyme (ACE) inhibitor therapy
- other major medical illnesses. Participants with evidence of a previous myocardial infarction on the first adenosine-stimulated positron emission tomography (PET) study will be withdrawn from the study.
Screening systolic blood pressure < 105 mm Hg off of anti-hypertensive medications
Participants can enroll in study and proceed with in-patient evaluations if during the run-in period adjustments of medications, diet and habits lead to improved glucose control [equivalent to HbA1c <8.5%, controlled hypertension and cessation of smoking.
- Participants who are currently taking these medications will not qualify for a screening visit. If medications were recently stopped by the participant's physician, he or she may be screened but the baseline assessment protocol must occur 3 months after stopping.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Dobbelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Placebo komparator: Placebo kapsel
|
Placebo capsule daily
|
|
Eksperimentell: Spironolactone (mineralocorticoid receptor [MR] blockade)
|
25 mg capsule daily for 6 months
|
|
Aktiv komparator: Hydrochlorothiazide + potassium
|
hydrochlorothiazide (HCTZ) + potassium, 12.5 mg/10 milliequivalents (mEq) capsule daily
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Coronary Flow Reserve From Baseline to 6 Months
Tidsramme: Baseline and six months
|
Coronary flow reserve (CFR), or myocardial perfusion reserve, was assessed via cardiac positron emission tomography (PET).
CFR is the ratio of adenosine-stimulated blood flow through myocardium to resting blood flow through myocardium.
An improvement in coronary flow reserve is beneficial.
|
Baseline and six months
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Mitral Annulus Velocities on Tissue Doppler (Delta E/e' Ratio), a Measure of Diastolic Function
Tidsramme: Baseline and six months
|
Diastolic function was assessed via tissue doppler imaging (TDI) by echocardiography to determine left ventricular diastolic function before and after 6 months of treatment.
|
Baseline and six months
|
|
Mitral Annulus Velocities on Tissue Doppler (Delta E/e' Ratio), a Measure of Diastolic Function (With Angiotensin II)
Tidsramme: Baseline and six months
|
Diastolic function was assessed via tissue doppler imaging (TDI) by echocardiography to determine left ventricular diastolic function before and after 6 months of treatment; and in response to acute administration (3 nanograms/kg/min for 60 min) of the vasoactive agent, Angiotensin II.
|
Baseline and six months
|
|
Change in Renal Plasma Flow
Tidsramme: Baseline and six months
|
Renal vasculature was assessed by examining renal plasma flow, or para-aminohippurate (PAH) clearance, basally and in response to acute administration (3 nanograms/kg/min for 60 min) of the vasoactive agent, Angiotensin II.
|
Baseline and six months
|
Samarbeidspartnere og etterforskere
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Gail K Adler, MD, PhD, Brigham and Women's Hospital
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Haas AV, Rosner BA, Kwong RY, Rao AD, Garg R, Di Carli MF, Adler GK. Sex Differences in Coronary Microvascular Function in Individuals With Type 2 Diabetes. Diabetes. 2019 Mar;68(3):631-636. doi: 10.2337/db18-0650. Epub 2018 Nov 8.
- Garg R, Rao AD, Baimas-George M, Hurwitz S, Foster C, Shah RV, Jerosch-Herold M, Kwong RY, Di Carli MF, Adler GK. Mineralocorticoid receptor blockade improves coronary microvascular function in individuals with type 2 diabetes. Diabetes. 2015 Jan;64(1):236-42. doi: 10.2337/db14-0670. Epub 2014 Aug 14.
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Glukosemetabolismeforstyrrelser
- Metabolske sykdommer
- Sykdommer i det endokrine systemet
- Sukkersyke
- Kardiovaskulære sykdommer
- Diabetes mellitus, type 2
- Vaskulære sykdommer
- Fysiologiske effekter av legemidler
- Molekylære mekanismer for farmakologisk virkning
- Antihypertensive midler
- Hormoner, hormonsubstitutter og hormonantagonister
- Natriuretiske midler
- Membrantransportmodulatorer
- Diuretika
- Hormonantagonister
- Mineralokortikoidreseptorantagonister
- Diuretika, Kaliumsparende
- Natriumklorid Symporter-hemmere
- Spironolakton
- Hydroklortiazid
Andre studie-ID-numre
- 2007-P-000564
- 1R01HL087060-01A2 (U.S. NIH-stipend/kontrakt)
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .
Kliniske studier på Type 2 diabetes mellitus
-
Instituto Nacional de Ciencias Medicas y Nutricion...Aktiv, ikke rekrutterende
-
Bangladesh Medical UniversityPåmelding etter invitasjon
-
Dokuz Eylul UniversityAktiv, ikke rekrutterendeType 2 diabetes mellitus (T2DM) | Pasientaktivering | Diabetes Selvbehandling | Diabetes mellitus (DM)Tyrkia
-
El Katib HospitalHar ikke rekruttert ennåType 2 diabetes mellitus (T2DM)
-
He Eye HospitalHar ikke rekruttert ennå
-
Diabetes Solutions InternationalDexCom, Inc.; Tidepool; MAVEN ProjectRekrutteringType 2 diabetes mellitus (T2DM)Forente stater
-
Global Institute of Stem Cell Therapy and ResearchHar ikke rekruttert ennå
-
Daewoong Pharmaceutical Co. LTD.Har ikke rekruttert ennåT2DM (type 2 diabetes mellitus)
-
Zhongda HospitalRekrutteringType 2 diabetes mellitus (T2DM)Kina
-
Newsoara Biopharma Co., Ltd.RekrutteringT2DM (type 2 diabetes mellitus)Kina
Kliniske studier på Spironolactone
-
ACS BiomarkerLondon School of Hygiene and Tropical Medicine; Institut National de la...FullførtHjertefeilStorbritannia, Frankrike, Nederland, Tyskland, Irland, Italia