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Valsartan and Amlodipine in Blood Pressure Management: Fixed-Dose vs. Free Drug Therapy

Comparative Analysis of Valsartan 80 mg and Amlodipine 5 mg in Fixed-Dose Combination Therapy Versus Combination Free Drug Therapy for Ambulatory Blood Pressure Management: A Randomized Controlled Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06487949
Enrollment
114
Registered
2024-07-05
Start date
2022-12-01
Completion date
2023-12-01
Last updated
2024-07-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypertension

Keywords

hypertension, 24 hours ambulatory blood pressure monitoring, fix dose combination

Brief summary

Patients aged 35 to 70 years with newly diagnosed stage 1 or 2 hypertension ( HTN) was randomized to receive either Valsartan 80 mg/Amlodipine 5 mg fix dose combination (FDC) or a free equivalent combination. Ambulatory blood pressure monitoring at baseline and 8 weeks post-treatment initiation was performed.

Detailed description

Patients were eligible for enrollment if they were between 35 and 70 years old and diagnosed with stage 1 or 2 hypertension at the time of enrollment, according to the 2017 ACC/AHA Guidelines (systolic blood pressure \> 130 mmHg and/or diastolic blood pressure \> 80 mmHg), and required the initiation of antihypertensive medications. This study used the permutation block randomization method (block size = 4) for the randomization process.Patients were randomly assigned to either the FDC group or the free equivalent combination group. Eligible patients underwent an 8-week period during which they received either Valsartan 80 mg and Amlodipine 5 mg as an FDC or as free equivalent combinations. The FDC group received one single tablet daily, while the free combination group received the medications on separate tablets (amlodipine daily and Valsartan in the evening). 24-hour ambulatory blood pressure monitoring (ABPM) at the time of inclusion and at the end of the 8-week period were performed using a standard ABPM device that the patients wore with an appropriately sized cuff.

Interventions

DRUGvalsartan-amlodipine 80/5 mg FDC

fix dose combination of valsartan 80 mg and Amlodipine 5 mg given as single pill

DRUGvalsartan 80 mg and amlodipine 5 mg as free combination

Free combination of valsartan 80 mg and amlodipine 5 mg given separately

Sponsors

Shiraz University of Medical Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
35 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients diagnosed with stage 1 or 2 hypertension at the time of enrollment, according to the 2017 ACC/AHA Guidelines (systolic blood pressure \> 130 mmHg and/or diastolic blood pressure \> 80 mmHg), and required the initiation of antihypertensive medications

Exclusion criteria

* Patients previously been on antihypertensive drugs * Patients had secondary high blood pressure * Patients had severe high blood pressure (systolic blood pressure \> 180 mmHg and/or diastolic blood pressure \> 110 mmHg) * Patients had ischemic heart disease in the past * Patients were unable to receive any part of the treatment * Patients who refuse to take part in study

Design outcomes

Primary

MeasureTime frameDescription
Mean 24 hours systolic blood pressure8 weeksThe average systolic blood pressure over 24 hours, during the day and at night
Mean 24 hours diastolic blood pressure8 weeksThe average diastolic blood pressure over 24 hours, during the day and at night
Mean 24 hours mean blood pressure8 weeksThe average mean blood pressure over 24 hours, during the day and at night

Secondary

MeasureTime frameDescription
Dipping8 weeksDrop of Mean systolic pressure more than 10% during nights compare to mean systolic pressure at days

Countries

Iran

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026