- ICH GCP
- Rejestr badań klinicznych w USA
- Badanie kliniczne NCT07823998
Coffee Use, Physical Activity and Symptomatic Ventricular Arrhythmias in Patients With Left Ventricular Dysfunction and an ICD (CUPS-ICD)
The goal of this observational study is to learn whether caffeine consumption is associated with ventricular arrhythmias and physical activity in adults with heart failure, reduced left ventricular ejection fraction, and an implantable cardioverter-defibrillator (ICD). The main questions it aims to answer are:
Is caffeine consumption associated with the burden of premature ventricular contractions (PVCs)? Is caffeine consumption associated with the occurrence of ventricular arrhythmias, including non-sustained ventricular tachycardia (NSVT), sustained monomorphic ventricular tachycardia (SMVT), and ventricular fibrillation (VF)? Is caffeine consumption associated with the level of daily physical activity recorded by the ICD?
Participants will:
Complete a one-time questionnaire about their consumption of coffee and other caffeine-containing products during the previous 7 days.
Allow researchers to collect relevant information from their medical records. Allow researchers to use data already collected during the routine follow-up of their ICD, including information on heart rhythm abnormalities, heart rate, and physical activity.
No additional hospital visits, medical examinations, blood tests, or changes to treatment are required as part of this study.
Przegląd badań
Status
Interwencja / Leczenie
Typ studiów
Zapisy (Szacowany)
Kontakty i lokalizacje
Lokalizacje studiów
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Bruges, Belgia
- AZ Sint-Jan Brugge
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Kontakt:
- Dr. Jesús Diz Díaz
- Numer telefonu: +3250452670
- E-mail: cardiologie@azsintjan.be
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Kryteria uczestnictwa
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Metoda próbkowania
Badana populacja
Opis
Inclusion Criteria:
- Written informed consent obtained prior to any study procedure.
- Age ≥18 years.
- Left ventricular systolic dysfunction (LVEF <50%), i.e. HFrEF or HFmrEF, documented on the most recent available transthoracic echocardiogram.
- Presence of a transvenous implantable cardioverter-defibrillator (ICD), including cardiac resynchronization therapy defibrillators (CRT-D), implanted at least 12 months before the caffeine questionnaire.
Exclusion Criteria:
- Presence of channelopathies.
- Subcutaneous implantable cardioverter-defibrillator (S-ICD), which does not provide ventricular ectopic beat counters, accelerometer-derived physical activity data or antitachycardia pacing, and therefore cannot generate the primary outcome measure.
- Inability to complete the study questionnaire on coffee and caffeinated product consumption.
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Burden of premature ventricular contractions (PVCs)
Ramy czasowe: 12 months
|
Burden of premature ventricular contractions (PVCs), expressed as the percentage of total recorded ventricular beats represented by PVCs (%PVC burden), as provided by the device's remote monitoring software, assessed over the 12 months immediately preceding the date of the caffeine questionnaire, averaged across all monitored days.
Unit: percent (%).
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12 months
|
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Non-sustained ventricular tachycardia (NSVT): occurrence (%)
Ramy czasowe: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as occurrence (percentage of participants).
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12 months
|
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Non-sustained ventricular tachycardia (NSVT): rate
Ramy czasowe: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as rate (episodes per 100 monitored days).
|
12 months
|
|
Non-sustained ventricular tachycardia (NSVT): distribution
Ramy czasowe: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as the distribution of episodes across time.
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12 months
|
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): occurrence (%)
Ramy czasowe: 12 months
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as occurrence (percentage of participants).
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12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): rate
Ramy czasowe: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as rate (episodes per 100 monitored days).
|
12 months
|
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): median episode duration (seconds)
Ramy czasowe: 12 months
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as median episode duration (seconds).
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12 months
|
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): mode of termination
Ramy czasowe: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as mode of termination (percentage of episodes terminating spontaneously, by antitachycardia pacing, or by shock).
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12 months
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): mean cycle length (ms)
Ramy czasowe: 12 months
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Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as mean cycle length (milliseconds).
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12 months
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Physical activity (hours per day)
Ramy czasowe: 12 months
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Physical activity, absolute.
Daily physical activity recorded by the ICD accelerometer and reported by the remote monitoring platform, averaged across monitored days; platforms reporting activity as a proportion of the day are converted by multiplying by 24.
Unit: hours per day.
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12 months
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Physical activity: mean daily activity expressed as a z-score
Ramy czasowe: 12 months
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Physical activity, manufacturer-standardised. Each participant's mean daily activity expressed as a z-score relative to the mean and standard deviation of all study participants monitored on the same platform.
Unit: standard deviation units.
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12 months
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Współpracownicy i badacze
Sponsor
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Szacowany)
Zakończenie podstawowe (Szacowany)
Ukończenie studiów (Szacowany)
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
- CUPS-ICD
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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