Denne side blev automatisk oversat, og nøjagtigheden af ​​oversættelsen er ikke garanteret. Der henvises til engelsk version for en kildetekst.

Endothelial Extracellular Vesicles as Biomarkers of Endothelial Activation in Adults With Newly Diagnosed Hypertension (HYPER-endoEV-a)

22. juli 2026 opdateret af: Ines Drenjancevic, Josip Juraj Strossmayer University of Osijek

Endothelial Extracellular Vesicles as Biomarkers of Blood Pressure-Induced Endothelial Activation in Adults With Newly Diagnosed Untreated Hypertension

Hypertension is associated with endothelial dysfunction, an early event in the development of cardiovascular disease. Endothelial extracellular vesicles (EEVs) have emerged as promising biomarkers of endothelial activation and vascular injury; however, their relationship with blood pressure and microvascular endothelial function in untreated hypertension remains insufficiently understood. This observational case-control study aims to compare circulating EEV concentrations between normotensive adults and adults with newly diagnosed, untreated primary hypertension. In addition, the study will investigate the associations between EEV levels, blood pressure, microvascular endothelial function assessed by laser Doppler flowmetry, and established circulating biomarkers of endothelial activation. The findings may improve understanding of the role of EEVs in early hypertension and support their potential use as non-invasive biomarkers of endothelial dysfunction and cardiovascular risk.

Studieoversigt

Status

Rekruttering

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

80

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Kroatien
      • Osijek, Kroatien, 31000
        • Rekruttering
        • Faculty of Medicine Osijek
        • Kontakt:
        • Kontakt:
        • Ledende efterforsker:
          • Ivana Tolj, MD, PhD
        • Underforsker:
          • Marko Stupin, MD, PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

The study population will consist of adult men and women aged 18 years and older recruited from the outpatient clinics of the University Hospital Centre Osijek, Croatia. The study will include normotensive individuals and patients with newly diagnosed, previously untreated primary hypertension. Healthy volunteers will serve as the control group.

Beskrivelse

Inclusion Criteria:

  • Adults aged 18 years or older.
  • Ability and willingness to provide written informed consent.
  • Normotensive individuals or individuals with newly diagnosed, previously untreated primary hypertension, classified according to the European Society of Hypertension (ESH) guidelines.
  • Ability to comply with all study procedures.

Exclusion Criteria:

  • Secondary hypertension.
  • Previous treatment with antihypertensive medication.
  • History of cardiovascular disease (except newly diagnosed primary hypertension in the hypertensive group).
  • Diabetes mellitus.
  • Chronic kidney disease.
  • Cerebrovascular disease.
  • Peripheral arterial disease.
  • Acute or chronic inflammatory or infectious disease.
  • Active malignancy.
  • Pregnancy or breastfeeding.
  • Current use of oral contraceptives, hormone replacement therapy, or medications known to affect endothelial function.
  • Inability or unwillingness to provide informed consent.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Normotensive Controls
Adults aged 18 years or older with normal office blood pressure according to the European Society of Hypertension (ESH) guidelines and without a history of hypertension or antihypertensive treatment.
Adults With Newly Diagnosed Untreated Primary Hypertension
Adults aged 18 years or older with newly diagnosed, previously untreated primary hypertension according to the European Society of Hypertension (ESH) guidelines and no prior use of antihypertensive medication.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Plasma endothelial extracellular vesicle concentration
Tidsramme: Baseline
Concentration of circulating endothelial extracellular vesicles quantified by flow cytometry following size-exclusion chromatography isolation.
Baseline

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Acetylcholine-induced vasodilation (AChID)
Tidsramme: Baseline
Endothelium-dependent microvascular vasodilation assessed by acetylcholine iontophoresis and laser Doppler flowmetry.
Baseline
Sodium nitroprusside-induced vasodilation (SNPID)
Tidsramme: Baseline
Endothelium-independent microvascular vasodilation assessed by sodium nitroprusside iontophoresis and laser Doppler flowmetry.
Baseline
VCAM-1 concentration
Tidsramme: Baseline
Plasma vascular cell adhesion molecule-1 (VCAM-1) concentration measured as a marker of endothelial activation.
Baseline
ICAM-1 concentration
Tidsramme: Baseline
Plasma intercellular adhesion molecule-1 (ICAM-1) concentration measured as a marker of endothelial activation.
Baseline
Endocan concentration
Tidsramme: Baseline
Plasma endocan concentration measured as a marker of endothelial dysfunction.
Baseline
Matrix metalloproteinase-9 (MMP-9)
Tidsramme: Baseline
Plasma MMP-9 concentration measured as a marker of vascular remodeling and endothelial dysfunction.
Baseline
PORH response (R-O%)
Tidsramme: Baseline
Microvascular endothelium-dependent vasodilation assessed by laser Doppler flowmetry following 1-minute arterial occlusion.
Baseline

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Josip Juraj Strossmayer University of Osijek

Samarbejdspartnere

Osijek University Hospital

Efterforskere

  • Studiestol: Ana Stupin, MD, PhD, Faculty of Medicine Osijek, Josip Juraj Strossmayer of Osijek

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. maj 2026

Primær færdiggørelse (Anslået)

30. april 2029

Studieafslutning (Anslået)

30. september 2029

Datoer for studieregistrering

Først indsendt

22. juli 2026

Først indsendt, der opfyldte QC-kriterier

22. juli 2026

Først opslået (Faktiske)

27. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

27. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. juli 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • HYPER-endoEV-adults

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ingen

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Abonner