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VITAL: Real-World Evaluation of Amlodipine/Valsartan. (VITAL)

24 settembre 2026 aggiornato da: VIVA PHARM LLP

Evaluation of Clinical Effectiveness in Real-World Clinical Practice, as Well as the Safety and Adherence to Therapy With a Fixed-Dose Combination of Amlodipine and Valsartan

The goal of this observational study is to evaluate the effectiveness, safety, and treatment adherence of a fixed-dose combination of amlodipine and valsartan in adults with grade 2-3 hypertension in real-world clinical practice in Kazakhstan. The study will include patients who have already been prescribed the fixed-dose combination of amlodipine and valsartan (Agvistat®) by their treating physician as part of routine medical care, independently of their participation in the study.

The main questions it aims to answer are:

What proportion of participants achieve the target blood pressure after 12 weeks of treatment with the fixed-dose combination of amlodipine and valsartan? How well do participants adhere to treatment, and what patient characteristics are associated with treatment adherence? What changes occur in blood pressure, heart rate, quality of life, and selected laboratory measures during the 12-week observation period? What adverse events occur during treatment?

Participants will:

Have their clinical and demographic information and data from routine medical care recorded during the study.

Have blood pressure, heart rate, and other relevant clinical data assessed during the 12-week observation period.

Complete questionnaires assessing treatment adherence and quality of life. Participate in follow-up visits at 4, 8, and 12 weeks; the 4- and 8-week visits will be conducted remotely, while the enrollment and 12-week visits will be conducted at the study site.

Panoramica dello studio

Stato

Attivo, non reclutante

Condizioni

Intervento / Trattamento

Tipo di studio

Osservativo

Iscrizione (Effettivo)

216

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Aktobe, Kazakistan
        • 'Kuanysh' LLP Health Centre
      • Aktobe, Kazakistan
        • 'Phoenix Hospital' LLP
      • Aktobe, Kazakistan
        • Sara Clinic Medical Centre LLP
      • Almaty, Kazakistan
        • "Medical Assistance Group" LLP
      • Almaty, Kazakistan
        • 'Vector Vita' Medical Centre LLP
      • Almaty, Kazakistan
        • State-owned Enterprise for Public Health 'National Hospital of the Medical Centre of the Presidential Administration of the Republic of Kazakhstan'
      • Astana, Kazakistan
        • "Green Clinic" LLP
      • Astana, Kazakistan
        • "Kazakhstan Social and Medical Company 'ZHANYA' LLP"
      • Astana, Kazakistan
        • State-owned Enterprise 'Hospital of the Medical Centre of the Presidential Administration of the Republic of Kazakhstan'
      • Shymkent, Kazakistan
        • "Clinic DL-ECO" LLP
      • Shymkent, Kazakistan
        • "Esculap-Vita" LLP
      • Shymkent, Kazakistan
        • "OrkenMed" LLP
      • Shymkent, Kazakistan
        • 'Ai-Nury' Medical Centre LLP
      • Ust-Kamenogorsk, Kazakistan
        • 'GaMMA' Clinical and Diagnostic Centre LLP
      • Ust-Kamenogorsk, Kazakistan
        • State Communal Enterprise on the Right of Economic Management "East Kazakhstan Regional Hospital
      • Ust-Kamenogorsk, Kazakistan
        • The 'Outpatient Centre' organisation
    • Turkistan Oblast
      • Shymkent, Turkistan Oblast, Kazakistan
        • "Medical Center Shubarsu" LLP
      • Turkestan, Turkistan Oblast, Kazakistan
        • "Clinic of Doctor Irsaliev N.R." LLP

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

The study population will consist of adult male and female patients aged ≥18 years with a confirmed diagnosis of grade 2-3 hypertension who have been prescribed a fixed-dose combination of amlodipine and valsartan (Agvistat®) by their treating physician as part of standard clinical practice, independently of participation in the study. The study will include patients with a medical history indicating failure to achieve target blood pressure while receiving a free combination of antihypertensive drugs. A total of 216 participants will be enrolled and observed for up to 12 weeks.

Descrizione

Inclusion Criteria:

  1. Male or female participants aged ≥18 years at the time of enrollment.
  2. Signed and dated written informed consent in accordance with ICH GCP and applicable local legislation before enrollment in the study.
  3. Women of childbearing potential must use an adequate method of contraception throughout the study.
  4. Documented diagnosis of grade 2-3 hypertension according to current clinical guidelines for hypertension, defined as systolic blood pressure (SBP) ≥140 mmHg and/or diastolic blood pressure (DBP) ≥90 mmHg measured at two different visits.
  5. Treatment with a fixed-dose combination of amlodipine and valsartan (Agvistat®) prescribed by the treating physician as part of standard clinical practice before enrollment, independently of participation in this study.
  6. Medical history indicating failure to achieve target blood pressure while receiving a free combination of antihypertensive drugs.

Exclusion Criteria:

  1. Participation in any randomized controlled trial within 3 months before enrollment in this study or during participation in this study.
  2. Atrial fibrillation; severe chronic heart failure (NYHA functional class III-IV or left ventricular ejection fraction ≤40% by echocardiography); or acute coronary syndrome or acute cerebrovascular event within the previous year.
  3. Secondary hypertension.
  4. Contraindications or conditions requiring caution listed in the prescribing information for the fixed-dose combination of amlodipine and valsartan, including: hypersensitivity to the active substances, other dihydropyridine derivatives, or any excipients; severe hepatic impairment, biliary cirrhosis, or cholestasis; concomitant use of aliskiren-containing medicinal products in patients with diabetes mellitus or renal impairment (eGFR <60 mL/min/1.73 m²); second or third trimester of pregnancy; severe hypotension; shock, including cardiogenic shock; left ventricular outflow tract obstruction, including hypertrophic obstructive cardiomyopathy or severe aortic stenosis; and hemodynamically unstable heart failure following acute myocardial infarction.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Modelli osservazionali: COHORT
  • Prospettive temporali: PROSPECTIVE

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
Amlodipine/valsartan-treated cohort

Adults with grade 2-3 hypertension who have been prescribed a fixed-dose combination of amlodipine and valsartan (Agvistat®) by their treating physician as part of routine clinical practice, independently of participation in the study. Participants are observed for up to 12 weeks to assess treatment effectiveness, adherence, safety, blood pressure control, and quality of life.

Fixed-dose combination of amlodipine and valsartan administered as part of routine clinical practice. The treatment is prescribed by the treating physician independently of study participation. The study does not assign treatment or provide the study drug. The available doses are amlodipine 5 mg/valsartan 160 mg and amlodipine 10 mg/valsartan 160 mg, administered once daily.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Proportion of participants achieving target blood pressure at 12 weeks
Lasso di tempo: 12 weeks

Proportion of participants who achieve the target blood pressure after 12 weeks of therapy: <140/90 mmHg for the general population or <130/80 mmHg for participants at high cardiovascular risk and participants younger than 60 years.

12 weeks

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Association between treatment adherence and clinical and demographic characteristics
Lasso di tempo: 12 weeks

Association between treatment adherence, assessed using the Morisky-Green scale, and clinical and demographic characteristics of participants, including age, sex, comorbidities, and duration of hypertension.

12 weeks
Change in heart rate from baseline
Lasso di tempo: 12 weeks

Change in heart rate from baseline during the observation period.

12 weeks
Change in alanine aminotransferase (ALT) from baseline
Lasso di tempo: 12 weeks

Change in alanine aminotransferase (ALT) level from baseline during the observation period.

12 weeks
Change in aspartate aminotransferase (AST) from baseline
Lasso di tempo: 12 weeks

Change in aspartate aminotransferase (AST) level from baseline during the observation period.

12 weeks
Change in serum creatinine from baseline
Lasso di tempo: 12 weeks

Change in serum creatinine level from baseline during the observation period.

12 weeks
Change in blood glucose from baseline
Lasso di tempo: 12 weeks

Change in blood glucose level from baseline during the observation period.

12 weeks
Change in low-density lipoprotein cholesterol from baseline
Lasso di tempo: 12 weeks

Change in low-density lipoprotein cholesterol (LDL-C) level from baseline during the observation period.

12 weeks
Change in body mass index from baseline
Lasso di tempo: 12 weeks

Change in body mass index (BMI) from baseline during the observation period.

12 weeks
Change in EQ-5D quality of life score
Lasso di tempo: 12 weeks

Change in the score of the standardized EQ-5D quality of life questionnaire during the observation period.

12 weeks
Association of clinical and demographic factors with achievement of target blood pressure
Lasso di tempo: 12 weeks

Association of clinical and demographic factors, including diabetes mellitus, obesity, grade of hypertension, chronic heart failure, age, and sex, with achievement of target blood pressure at 12 weeks of therapy.

12 weeks
Patient satisfaction with treatment
Lasso di tempo: 12 week

Assessment of participants' satisfaction with treatment using a 5-point Likert scale.

12 week
Frequency and characteristics of adverse drug reactions
Lasso di tempo: 12 weeks

Frequency and characteristics of adverse drug reactions associated with the use of the fixed-dose combination of amlodipine and valsartan, identified based on the analysis of adverse reaction reports (Yellow Cards).

12 weeks

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

20 novembre 2025

Completamento primario (Stimato)

20 settembre 2026

Completamento dello studio (Stimato)

20 novembre 2026

Date di iscrizione allo studio

Primo inviato

14 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

24 settembre 2026

Primo Inserito (Effettivo)

29 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

29 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

24 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • VP-01

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .