Hypertension Clinical Trial
Official title:
Effect of the Administration of Losartan / Amlodipine in Fixed Combination Versus Losartan on Hemodynamic and Arterial Stiffness Parameters in Patients With Systemic Hypertension Grade 1 and 2
Systemic Arterial Hypertension (SAH) is a disease with a high prevalence in Mexico and worldwide. SAH is associated with an increase in cardiovascular morbidity and mortality, causing cardiovascular disease (CVD), heart failure (HF), as well as chronic kidney disease (CKD). Several of the physiopathological mechanisms observed are: the increase in cardiac output, central aortic pressure (CAP), pulse wave velocity (PWV) and peripheral vascular resistance (PVR), which leads to the generation of damage to the target organ. The identification not only of the peripheral arterial pressure, but also of these hemodynamic parameters and arterial stiffness would allow a better cardiovascular characterization of the patients. However, the measurements of hemodynamic parameters and arterial stiffness can vary during the 24 hours from individual to individual by all known mechanisms involved in the regulation of blood pressure such as cortisol, central nervous system, the peripheral nervous system, along with the renin angiotensin and aldosterone system, which are usually only measured in a single moment. Generally, the choice of drug in a patient with SAH is based only on the values of peripheral blood pressure at the time of the measurement. The use of oscillometric equipment such as the Mobil-O-Graph 24 allows to the investigators to know the hemodynamic and arterial stiffness behavior during 24 hours; therefore, this could favor the choice of the most appropriate antihypertensive drug, dose and administration time. The use of angiotensin II receptor antagonists (ARA II) At1 blockers such as losartan and calcium channel blockers (CCB) for instance amlodipine have shown a reduction in CAP and peripheral blood pressure respectively in patients with SAH. The most prescribed drugs in health units worldwide are enalapril, amlodipine, losartan and atenolol, of which the most used combination is losartan with amlodipine. There are no studies to date that allow investigators to identify the effect of the administration of losartan / amlodipine in a fixed combination form on the hemodynamic parameters and arterial stiffness of patients with SAH. Therefore, the objective of the present study is to evaluate the effect of this fixed combination versus losartan on hemodynamic and arterial stiffness parameters based on the behavior of these for 24 hours.
Status | Recruiting |
Enrollment | 28 |
Est. completion date | June 14, 2019 |
Est. primary completion date | January 15, 2019 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 40 Years to 65 Years |
Eligibility |
Inclusion Criteria: - Diagnosis of hypertension grade 1 or 2 according to the criteria of the American Heart Association (2017) - Written informed consent - Patients who are undergoing antihypertensive treatment and who, at the trial of the investigator and taking care of the health and safety of the patient, can undergo at least 2 weeks of washing prior to the visit of day 0 (it will be evaluated on a case-by-case basis). Exclusion Criteria: - Systolic blood pressure = 180 mmHg or diastolic blood pressure =120 mmHg - Diabetes Mellitus - Treated with triple pharmacological therapy - Untreated thyroid disease - Total cholesterol >400mg/dl - Triglycerides >400mg/dl - Liver enzymes (alt and ast) more tan twice the normal range - Glomerular filtration rate <60ml/min (Cockcroft-Gault) |
Country | Name | City | State |
---|---|---|---|
Mexico | Institute of Experimental and Clinical Therapeutics (INTEC), CUCS, University of Guadalajara | Guadalajara | Jalisco |
Lead Sponsor | Collaborator |
---|---|
Centro Universitario de Ciencias de la Salud, Mexico |
Mexico,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Pulse Wave Velocity (PWVao) | Before and after intervention with oscillometric monitoring system via Mobil-O -Graph® 24. Maximum score 12 m/s | 56 days | |
Secondary | Peripheral vascular resistance | Before and after intervention with oscillometric monitoring system via via Mobil-O -Graph®. Maximum score 1.8s*mmHg/ml | 56 days | |
Secondary | Cardiac output | Before and after intervention with oscillometric monitoring system via via Mobil-O -Graph®. Maximum score 6.5L/min | 56 days | |
Secondary | Pulse Pressure (PP) | Before and after intervention with oscillometric monitoring system via via Mobil-O -Graph® 24. Maximun score <75 mmHg | 56 days | |
Secondary | Augmentation Index (AIx) | Before and after intervention with oscillometric monitoring system via via Mobil-O -Graph® 24. Maximum score 110% | 56 days | |
Secondary | Systolic blood pressure | Before and after intervention using a digital manometer. Maximum score 160 mmHg | 56 days | |
Secondary | Diastolic blood pressure | Before and after intervention using a digital manometer. Maximum score 100 mmHg | 56 days | |
Secondary | Creatinine | Before and after intervention by spectrophotometry. Maximum score 1.3 mg/dl | 56 days |
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