An interventional study of Heart age in Cardiovascular Diseases and Hypertension, sponsored by Kronoberg County Council. Recruiting at 2 sites in Sweden. Open to participants aged 40 Years to 75 Years. Per ClinicalTrials.gov, last updated 2023-10-11.
Sponsored by Kronoberg County Council · Not applicable, Interventional, and Prevention
Successfully communicating cardiovascular risk to patients is essential for achieving compliance to medication and lifestyle changes. An intuitive way to translate cardiovascular risk is to present a Heart Age; an ECG-based age-estimation from ECG changes which can be contrasted to a patient's chronological age. In this pilot study, the feasibility of a randomized controlled study (RCT) in which hypertensive patients in primary care will receive information about their ECG-based Heart Age in addition to standard care, or standard care alone, will be assessed, in preparation for a larger RCT.
Cardiovascular disease processes begin early and progress silently for many years. Fortunately, several risk-factors are modifiable, and cardiovascular risk can therefore be reduced for example by smoking cessation, dietary changes, increased physical activity in sedentary people and adherence to pharmacological risk factor reduction. To accomplish this, the patient must understand that he or she is at risk. One way to do this could be to present the risk as a "Heart Age", which can be contrasted to the patient's chronological age. In a previous study, an accurate Heart Age could be obtained using conventional, 10-second ECG recordings. The ECG analysis included conventional and basic ECG measurements such as heart rate and waveform amplitudes and durations, but also combinations of advanced ECG measures from 12-lead-ECG-derived vectorcardiography and waveform complexity.
However, it is not known whether the use of Heart Age can improve outcomes if applied in clinical care. To address this issue, a study in which patients, in addition to standard care, are randomized to either being presented with their Heart Age or not should be performed. In order to check the feasibility of such a randomized controlled study (RCT), a pilot study is necessary.
This study will evaluate the feasibility of randomizing patients with hypertension to either being presented with their Heart Age or not, in addition to standard care, by describing the recruitment dropout rate, the quality of the recorded ECG and the tolerability of the intervention (participant experience).
At the baseline visit a standardized resting blood pressure, height, weight and waist circumference will be measured. Baseline characteristics (age, sex, hypercholesterolemia, diabetes, ischemic heart disease, cerebrovascular disease, renal failure, heart failure, medications) will be recorded from the patient records. Unless a recent (\<1 month) ECG is available, a new resting ECG recording will be performed, and blood sampling will be done (total cholesterol, high-density lipoprotein [HDL], low-density lipoprotein [LDL] mmol/l, triglyceride mmol/mol, Hba1c (IFCC) mmol/mL, P-Creatinine (µmol/L). The participant will also receive a questionnaire for background information and information about tobacco and alcohol use, level of physical activity, dietary habits, medication adherence, quality of life and self-estimated health including estimating one's own risk of cardiovascular morbidity.
ECG-based Heart Age will be estimated for all participants but presented only to patients in the intervention arm. A follow-up visit will be performed 6 months after the baseline visit. At follow-up, the same measurements including the same questionnaires will be obtained. Participants in the intervention arm will also receive a questionnaire on their experience of receiving information about their Heart Age (tolerability).
6,114 studies on the registry are indexed under Hypertension; 912 are open to participants now.
This study's planned enrollment of 60 is below the median of 100 across 4,575 interventional studies indexed under Hypertension.
Browse Hypertension studies →Kronoberg County Council is the lead sponsor of 13 studies on the registry; 6 are open to participants now.
Compared within Hypertension, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Cardiovascular Diseases. The counts are of registry records indexed under each term, refreshed daily. How we classify →
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Eligibility: Patients with hypertension and systolic blood pressure >140 mm Hg (measured during the inclusion period by doctor or nurse at the primary health care center)
Inclusion Criteria:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The participants in the intervention group will receive information about their ECG-based Heart-Age and the Heart Age. The estimated Heart Age and Heart Age Gap will be presented in writing to the participants in the experimental arm within 2 weeks after the baseline visit. The presentation will include a brief and easy-to-understand description on how the Heart Age has been estimated. In addition, patients will receive information about general advice on how to improve blood pressure levels and reduce the risk of future cardiovascular disease by adopting a healthy lifestyle and adhering to the prescribed medication. This information will be the same for participants in the two study arms, and is based on recommendations from the European Society of Cardiology. For patients in the intervention group the ordinary primary care physicians will also be informed about the ECG-based Heart-Age.
Other: Heart age
The control group will receive standard care according to routine care at the individual primary health care center, and receive the same general advice, on how to improve blood pressure levels and/or to reduce risks of future cardiovascular disease, as the participants in the intervention group.
information about their ECG-based Heart-Age and the Heart Age gap, i.e. the difference between chronological and ECG-based Heart Age.
Recruitment rate
Number of patients being recruited within the specified time frame
Time frame: 6 months
Dropout rate
Number of patients who do not complete follow-up
Time frame: 6 months
Quality
Number of Heart Age estimations with adequate ECG signal quality
Time frame: 6 months
Tolerability of the intervention
Tolerability of the intervention assessed through questionnaires.
Time frame: 6 months
Blood pressure (systolic and diastolic)
Change in blood pressure
Time frame: 6 months
HbA1c
Change in HbA1c
Time frame: 6 months
Physical activity
Change in physical activity assessed through questionnaires.
Time frame: 6 months
Dietary habits
Change in dietary habits assessed through questionnaires.
Time frame: 6 months
Tobacco
Change in tobacco use assessed through questionnaires.
Time frame: 6 months
Alcohol
Change in alcohol use assessed through questionnaires.
Time frame: 6 months
Medication adherence
Change in medication adherence assessed through questionnaires.
Time frame: 6 months
Risk perception
Change in risk perception assessed through questionnaires.
Time frame: 6 months
Body-mass index (BMI)
Change in BMI
Time frame: 6 months
Heart Age
Change in Heart Age
Time frame: 6 months
Plan to share: No
Started May 2023 (actual). Primary completion is estimated for Sep 2024, 16 months after the start.
Of 1,403 non-industry interventional studies with no phase under Hypertension, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 41. This study's planned 16 months is below that.
Counting every sponsor, half of 1,498 studies reached it within 23 months; a quarter within 10 and three quarters within 41.
How these figures are worked out, and which studies are left out of them.
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Kronoberg County Council