Hypertension Clinical Trial
— REFINE HTOfficial title:
A National, Multicenter, Non-interventional, Crosssectional Study for the Determination of the pREvalence of Non-valvular Atrial FIbrillation Among patieNts Diagnosed With Hypertension Attending HEllenic Hypertension Centers
Verified date | May 2017 |
Source | Bayer |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
Arterial hypertension has been recognized as a major causal factor for atrial fibrillation
(AF), the most common sustained cardiac arrhythmia. In light of its worldwide increasing
prevalence and incidence and the accompanied increase in the risk of stroke, thromboembolic
events and mortality, AF has emerged as a global healthcare problem.
Early diagnosis of AF, prior to the occurrence of complications is a recognized priority for
the prevention of strokes. Once diagnosed, anticoagulant therapy is the cornerstone in the
management of the risk of stroke in AF patients. The 2012 ESC Guidelines recommend the use
of a risk factor-based approach to stroke risk stratification for AF patients.
This study aims towards gaining real-world data on the prevalence of non-valvular atrial
fibrillation (NVAF) among hypertensives in Greece. The rate of ESC guideline-adherent
antithrombotic therapy on the basis of stroke and bleeding risk assessments, and factors
influencing treatment decision-making will be assessed as well in patients diagnosed with
the arrhythmia.
Finally, potential differences in the NVAF prevalence in adequately and inadequately
controlled hypertensives will be documented.
Status | Completed |
Enrollment | 1119 |
Est. completion date | May 30, 2016 |
Est. primary completion date | February 29, 2016 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 60 Years and older |
Eligibility |
Inclusion Criteria: - Female and male outpatients aged 60 years and older - Patients having being diagnosed with arterial hypertension - For patients without a history of AF diagnosis, the decision to perform electrocardiography testing, either standard 12-lead ECG or ambulatory ECG, at the study visit has been made as per the investigator's routine practice - Patients with available medical records - Written signed and dated informed consent Exclusion Criteria - Presence of any condition/circumstance which in the opinion of the investigator would make the patient unfit to participate in the study or would compromise the quality of the study data (e.g., non-native speaker or patient who does not understand the local language unless reliable interpreter services are available; failure to cooperate due to major psychiatric disturbances, dementia, or substance use disorder) - Patients currently participating in any investigational program with interventions outside of routine clinical practice or who have received any investigational product within 1 month or 5 half-lives of the investigational agent (whichever is longer) prior to enrollment |
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Bayer |
Greece,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Frequency of non-valvular atrial fibrillation (NAVF) among hypertensive outpatients | At enrollment | ||
Secondary | Proportion of NVAF patients for whom the HAS-BLED score has been estimated by the physicians as part of the decision for antithrombotic treatment | HAS-BLED: Hypertension, Abnormal renal/liver function, Stroke, Bleeding history or predisposition, Labile INR, Elderly, Drugs/alcohol concomitantly | At enrollment | |
Secondary | Frequency of oral anticoagulation therapy among the study population diagnosed with NVAF | At enrollment | ||
Secondary | Proportion of untreated patients among the study population diagnosed with NVAF | At enrollment | ||
Secondary | Proportion of antiplatelet therapy treated patients among the study population diagnosed with NVAF | At enrollment | ||
Secondary | CHADS2 scores | CHADS2 : Congestive heart failure, Hypertension, Age 75 years or older, Diabetes mellitus and prior Stroke or transient ischemic attack (doubled) | At enrollment | |
Secondary | CHA2DS2-VASc scores | CHA2DS2-VASc: Congestive heart failure, Hypertension, Age 75 years or older (doubled), Diabetes mellitus, previous Stroke/transient ischemic attack (doubled), Vascular disease, Age 65-74 years and Sex category | At enrollment | |
Secondary | Degree of agreement between the proportions of patients classified at intermediate and high stroke risk according to the two risk stratification systems | At enrollment | ||
Secondary | CHA2DS2-VASc score in hypertensives without NVAF | At enrollment | ||
Secondary | Correlation of the CHA2DS2-VASc-assessed risk with the average annual stroke risk as calculated by the Framingham stroke risk scoring system in hypertensives without NVAF | A Poisson regression model or negative binomial model will be applied in order to examine the potential association of the Framingham stroke risk score with the CHA2DS2-VASc score | At enrollment | |
Secondary | CHA2DS2-VASc score in hypertensives without AF | At enrollment | ||
Secondary | Correlation of the CHA2DS2-VASc-assessed risk with the average annual AF risk as calculated by the Framingham AF risk scoring system in hypertensives without AF | A Poisson regression model or negative binomial model will be applied in order to examine the potential association of the Framingham AF risk score with the CHA2DS2-VASc score | At enrollment | |
Secondary | Frequency of NVAF among the subpopulations of hypertensives adequately versus those inadequately controlled according to the physicians' medical judgement | At enrollment |
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