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Effect of a Web-based Application With Integrated AI Chat for Cardiovascular Risk Support

28 ottobre 2026 aggiornato da: Salma Ibrahim Fahmy Habib, Cairo University

Effect of a Web-based Application With Integrated AI Chat for Cardiovascular Risk Support Versus Usual Care: a Randomized Controlled Trial.

To determine the effect of a web-based application with an integrated AI chat module on 10-year cardiovascular risk score (intervention) versus usual clinic care (control) after 3 months from baseline score.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Cardiovascular diseases (CVDs), such as coronary heart disease, stroke, and peripheral vascular disease, are still among the primary causes of early mortality and long-term disability across the globe, with an estimated 17.9 million deaths and over 422 million affected individuals reported each year . The literature data showed that CVD risk factors are common in Arab countries' populations . In Egypt, coronary heart disease deaths account for 32.40% of total deaths, making Egypt the 15th highest country with coronary heart disease deaths in the world, according to the latest WHO data. Physical inactivity, consumption of high-fat foods, elevated blood pressure, tobacco use, diabetes, obesity, and lipid disorders are key contributors to the increased incidence of coronary heart disease.

Significant developments in internet and mobile technologies over the past decade offer promising opportunities to alleviate the burden of cardiovascular diseases and expand access to healthcare services.

Digital health interventions (DHIs) are technology-driven tools designed to enhance patient care and health outcomes in a safe and efficient manner. These may include smartphone apps or automated email programs. Studies by Whittaker and Wieland show that DHIs can help lower cardiovascular risk factors, supporting outcomes like smoking cessation and weight reduction and Widmer's meta-analysis found that DHIs reduced rehospitalization rates and improved cardiovascular risk score.

Natural language processing (NLP) and large language model (LLM) technologies hold significant potential for enhancing patients' access to medical knowledge. Advanced AI chatbots-such as ChatGPT-are examples of pre-trained LLMs that can engage in human-like conversations and generate coherent, contextually appropriate responses. A growing number of individuals are turning to AI chatbots instead of conventional search methods drawn by their capacity to provide personalized interactions and immediate, customized responses.

Digital interventions can improve risk factor control but evidence for AI-chat integrated web applications on predicted 10-year CV risk is limited. This RCT will compare a web application + AI chat intervention against usual clinic care on cardiovascular risk support, so that our research question is "Among adults with cardiovascular risk factors attending Kasr- Alainy family medicine clinics, does using a web application with AI chat support lead to a greater reduction in predicted 10-year cardiovascular risk compared to usual care?".

Tipo di studio

Interventistico

Iscrizione (Stimato)

116

Fase

  • Non applicabile

Contatti e Sedi

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

Contatto studio

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

Da 40 anni a 75 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Adults aged 40-75 years
  • At least one modifiable CV risk factor (hypertension, dyslipidemia, type 2 diabetes, current smoker).
  • Access to a smartphone/computer and internet.(for the intervention group)
  • Able to read Arabic and provide informed consent.
  • Baseline predicted 10-year CV risk ≥5%.

Exclusion Criteria:

  • Known previous major cardiovascular event (MI, stroke)
  • Illiterate patients
  • patient with predicted 10-year CV risk ≥20%.

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

  • Scopo principale: Prevenzione
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Web app + AI chat (Intervention arm)

The intervention group will receive the usual clinic care and will be offered to use the app with AI chat for 3 months after explaining the purpose of the study.

-An informed written consent will be taken from each participant

• Web app features: User account with secure login, baseline profile (age, sex, BP, lipids, smoking, diabetes, medications) Automated calculation of 10-year cardio vascular disease risk (ASCVDR) will be done using The American College of Cardiology (ACC)/American Heart Association (AHA) Risk Estimator of ASCVD [12].

  • Educational modules (short, evidence-based content in Arabic)
  • Integrated AI chat An AI-powered chatbot is integrated into the web application to provide interactive health education and respond to user inquiries regarding cardiovascular risk, lifestyle modification, dietary advices and prevention strategies. The chatbot is connected to a large language model API, enabling natural language conversations and is accessible to participants 24 hours

• Web app features: User account with secure login, baseline profile (age, sex, BP, lipids, smoking, diabetes, medications) Automated calculation of 10-year cardio vascular disease risk (ASCVDR) will be done using The American College of Cardiology (ACC)/American Heart Association (AHA) Risk Estimator of ASCVD.

  • Educational modules (short, evidence-based content in Arabic)
  • Integrated AI chat An AI-powered chatbot is integrated into the web application to provide interactive health education and respond to user inquiries regarding cardiovascular risk, lifestyle modification, dietary advices and prevention strategies. The chatbot is connected to a large language model API, enabling natural language conversations and is accessible to participants 24 hours a day.

Medical content and responses were reviewed and supervised by the research team to ensure accuracy and adherence to international guidelines (American Heart Association [AHA] and European Society of Cardiology [ESC].

Usual care follows the national prevention and management guidelines for major cardiovascular risk factors including hypertension, dyslipidemia, diabetes, smoking, obesity, and physical inactivity. Patients typically undergo periodic clinical assessment which includes measurement of blood pressure, weight and BMI, review of lifestyle risk factors, and laboratory testing such as fasting blood glucose and lipid profile when indicated.

Standard lifestyle counseling is provided in the form of brief verbal advice concerning smoking cessation, healthy diet, and increasing physical activity. Pharmacological therapy is initiated or adjusted based on the clinical assessment and guideline recommendations (e.g., antihypertensive medications, statins, antidiabetic treatment).

Follow-up visits (monthly visits for 3 months).

Altro: Usual care (Control arm)

Usual care follows the national prevention and management guidelines for major cardiovascular risk factors including hypertension, dyslipidemia, diabetes, smoking, obesity, and physical inactivity. Patients typically undergo periodic clinical assessment which includes measurement of blood pressure, weight and BMI, review of lifestyle risk factors, and laboratory testing such as fasting blood glucose and lipid profile when indicated.

Standard lifestyle counseling is provided in the form of brief verbal advice concerning smoking cessation, healthy diet, and increasing physical activity. Pharmacological therapy is initiated or adjusted based on the clinical assessment and guideline recommendations (e.g., antihypertensive medications, statins, antidiabetic treatment).

Follow-up visits (monthly visits for 3 months).

Usual care follows the national prevention and management guidelines for major cardiovascular risk factors including hypertension, dyslipidemia, diabetes, smoking, obesity, and physical inactivity. Patients typically undergo periodic clinical assessment which includes measurement of blood pressure, weight and BMI, review of lifestyle risk factors, and laboratory testing such as fasting blood glucose and lipid profile when indicated.

Standard lifestyle counseling is provided in the form of brief verbal advice concerning smoking cessation, healthy diet, and increasing physical activity. Pharmacological therapy is initiated or adjusted based on the clinical assessment and guideline recommendations (e.g., antihypertensive medications, statins, antidiabetic treatment).

Follow-up visits (monthly visits for 3 months).

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Lasso di tempo
Mean absolute change in predicted 10-year cardiovascular risk (%) from baseline to 3 months in intervention and control groups.
Lasso di tempo: 3 months
3 months

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Mean change in systolic BP (mmHg)
Lasso di tempo: 3 months

Change in systolic blood pressure from baseline to 3 months, measured in mmHg.

3 months
Mean change in diastolic blood pressure
Lasso di tempo: 3 months

Change in diastolic blood pressure from baseline to 3 months, measured in mmHg.

3 months
Mean change in LDL cholesterol
Lasso di tempo: 3 months

Change in low-density lipoprotein (LDL) cholesterol level from baseline to 3 months, measured in mg/dL.

3 months
Mean change in HDL cholesterol
Lasso di tempo: 3 months

Change in high-density lipoprotein (HDL) cholesterol level from baseline to 3 months, measured in mg/dL.

3 months
Mean change in total cholesterol
Lasso di tempo: 3 months

Change in total cholesterol level from baseline to 3 months, measured in mg/dL.

3 months
Mean change in HbA1c among participants with diabetes
Lasso di tempo: 3 months

Change in glycated hemoglobin (HbA1c) from baseline to 3 months among participants with diabetes, measured as a percentage (%).

3 months
System Usability Scale (SUS) score
Lasso di tempo: 3 months

Usability of the web-based application will be assessed using the 10-item System Usability Scale (SUS), with total scores ranging from 0 to 100. Higher scores indicate better perceived usability.

3 months
Change in medication adherence score
Lasso di tempo: 3 months

Change in medication adherence from baseline to 3 months, assessed using Adherence to Refills and Medications Scale (ARMS) questionnaire . It consists of 12 items covering two main domains: medication-taking behavior and prescription refill adherence Each item is scored on a 4-point Likert scale ranging from 1 (none of the time) to 4 (all of the time), with higher scores indicating lower adherence

3 months

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 (Stimato)

25 ottobre 2026

Completamento primario (Stimato)

1 agosto 2027

Completamento dello studio (Stimato)

1 settembre 2027

Date di iscrizione allo studio

Primo inviato

19 ottobre 2026

Primo inviato che soddisfa i criteri di controllo qualità

28 ottobre 2026

Primo Inserito (Effettivo)

4 novembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

4 novembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 ottobre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • application with AI chat &CVD

Piano per i dati dei singoli partecipanti (IPD)

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

INDECISO

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 .