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Efficacy and Safety of Valsartan and Amlodipine (± HCTZ) in Adults With Moderate, Inadequately Controlled Hypertension

An Open-label, Multicenter Study to Evaluate the Efficacy and Tolerability of a 4 Week Therapy With the Fixed Dose Combination of Amlodipine 10 mg Plus Valsartan 160 mg in Hypertensive Patients Not Adequately Responding to a 4 Week Therapy With the Free Combination of an Angiotensin Receptor Blocker (Olmesartan 20 mg) Plus Amlodipine 10 mg

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00523744
Enrollment
257
Registered
2007-08-31
Start date
2007-07-31
Completion date
2007-12-31
Last updated
2020-08-04

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

Conditions

Hypertension

Keywords

hypertension, valsartan, amlodipine

Brief summary

This study will evaluate the efficacy and safety of valsartan and amlodipine in fixed dose combination in adults with moderate, inadequately controlled hypertension. There was an optional study extension for eligible patients who wanted to participate that contains the triple therapy (ie, hydrochlorothiazide+ amlodipine/valsartan).

Detailed description

Title of study extension: An open-label, multicenter extension to evaluate the efficacy and tolerability of a 4 week therapy with hydrochlorothiazide 12.5 mg plus amlodipine 10 mg/valsartan 160 mg in hypertensive patients not adequately responding to a 4 week therapy each with the combinations of olmesartan 20 mg plus amlodipine 10 mg followed by amlodipine 10 mg/valsartan 160 mg

Interventions

DRUGAmlodipine

Amlodipine supplied as 5 mg tablets, taken orally once a day during Treatment Phase 1 only.

DRUGOlmesartan medoxomil

Olmesartan medoxomil supplied as 10 mg tablets taken once a day during Treatment Phase 1 only.

DRUGAmlodipine+valsartan

Fixed-dose combination of amlodipine 10 mg plus valsartan 160 mg tablet taken orally once a day during Treatment Phase 2 and Extension Phase.

DRUGHydrochlorothiazide

Hydrochlorothiazide (HCTZ) 12.5 mg tablets taken once a day during the Extension Phase.

Sponsors

Novartis
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

for Core study: * Male or female patients (\>=18 years) * Females must be either post-menopausal for one year, surgically sterile or using effective contraceptive methods * Patients with essential hypertension (diastolic blood pressure \>=100 mmHg and \<110 mmHg) Inclusion Criteria for Extension: \- Patients had to have a msSBP \>= 140 mmHg and/or msDBP \>= 90 mmHg at week 8 ie, end of core study.

Exclusion criteria

for Core study: * Severe hypertension (diastolic blood pressure \>=110 mmHg or systolic blood pressure \>= 180 mmHg) * Pregnant or nursing women * Treated hypertensive patients with controlled hypertension under current therapy * A history of cardiovascular disease, including angina pectoris, myocardial infarction, coronary artery bypass graft, percutaneous transluminal coronary angioplasty, transient ischemic attack, stroke, and heart failure NYHA II - IV

Design outcomes

Primary

MeasureTime frameDescription
Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Core Phase of the StudyBaseline Phase 2 (Week 4) to end of Phase 2 (Week 8)The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.
Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Extension Phase of the StudyBaseline Phase 3 (Week 8) to end of Phase 3 (Week 12)The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Secondary

MeasureTime frameDescription
Change in Sitting Pulse Rate During the Core Phase of the StudyBaseline Phase 2 (Week 4) to end of Phase 2 (Week 8)Pulse rate was measured once for 30 seconds just prior to blood pressure measurements in the sitting position.
Percentage of Patients Who Achieved Normalized Blood Pressure During the Core Phase of the StudyBaseline Phase 2 (Week 4) to end of Phase 2 (Week 8)Normalized Blood Pressure was defined as a msSBP \< 140 mmHg and/or a msDBP \< 90 mmHg.
Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Core Phase of the StudyBaseline of Phase 2 (Week 4) to end of Phase 2 (Week 8)Blood pressure response was defined as msSBP \< 140 mmHg or a 20 mmHg decrease in msSBP at the end of Phase 2 (Week 8) compared to Baseline in Phase 2 (week 4) or a msDBP \< 90 mmHg or a 10 mmHg decrease in msDBP at the end of Phase 2 compared to Baseline in Phase 2.
Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Extension Phase of the StudyBaseline Phase 3 (Week 8) to end of Phase 3 (Week 12)The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.
Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Core Phase of the StudyBaseline Phase 2 (Week 4) to end of Phase 2 (Week 8)The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.
Change in Sitting Pulse Rate During the Extension Phase of the StudyBaseline Phase 3 (Week 8) to end of Phase 3 (week 12)Pulse rate was measured once for 30 seconds just prior to blood pressure measurements in the sitting position.
Percentage of Patients Who Achieved Normalized Blood Pressure During the Extension Phase of the StudyBaseline Phase 3 (Week 8) to end of Phase 3 (Week 12)Normalized Blood Pressure was defined as a msSBP \< 140 mmHg and/or a msDBP \< 90 mmHg.
Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Extension Phase of the StudyBaseline of Phase 3 (Week 8) to end of Phase 3 (Week 12)Blood pressure response was defined as msSBP \< 140 mmHg or a 20 mmHg decrease in msSBP at the end of Phase 3 compared to Baseline in Phase 3 or a msDBP \< 90 mmHg or a 10 mmHg decrease in msDBP at the end of Phase 3 compared to Baseline in Phase 3.
Change in Sitting Pulse Pressure During the Extension Phase of the StudyBaseline Phase 3 (Week 8) to end of Phase 3 (Week 12)Pulse pressure is systolic pressure (SP) minus diastolic pressure (DP). The arm in which the highest sitting DPs were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, SP and DP were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.
Change in Sitting Pulse Pressure During the Core Phase of the StudyBaseline Phase 2 (Week 4) to end of Phase 2 (Week 8)Pulse pressure is systolic pressure (SP) minus diastolic pressure (DP). The arm in which the highest sitting DPs were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, SP and DP were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Countries

Germany

Participant flow

Participants by arm

ArmCount
Amlodipine(AML)+Olmesartan, AML+Valsartan, AML+Valsartan+HCTZ
During the Treatment Phase 1, participants received 1 week of treatment with olmesartan 10 mg and amlodipine 5 mg once daily in free combination, followed by three weeks of treatment with olmesartan 20 mg plus amlodipine 10 mg once daily in free combination. During the Treatment Phase 2 participants received amlodipine 10 mg plus valsartan 160 mg for 4 weeks. During the Extension Phase, participants received 4 weeks treatment with amlodipine 10 mg plus valsartan 160 mg plus hydrochlorothiazide (HCTZ) 12.5 mg.
257
Total257

Withdrawals & dropouts

PeriodReasonFG000
Phase 1 - Amlodipine+OlmesartanAdministrative problems1
Phase 1 - Amlodipine+OlmesartanAdverse Event2
Phase 1 - Amlodipine+OlmesartanLost to Follow-up2
Phase 1 - Amlodipine+OlmesartanWithdrawal by Subject1
Phase 2 - Amlodipine+ValsartanAdverse Event2
Phase 2 - Amlodipine+ValsartanLost to Follow-up1

Baseline characteristics

CharacteristicAmlodipine(AML)+Olmesartan, AML+Valsartan, AML+Valsartan+HCTZ
Age, Continuous
Phase 1 - Amlodipine+olmesartan
58.8 years
STANDARD_DEVIATION 12.38
Age, Continuous
Phase 2 - Amlodipine+valsartan
59.8 years
STANDARD_DEVIATION 11.84
Age, Continuous
Phase 3 - Amlodipine+valsartan+HCTZ
60.9 years
STANDARD_DEVIATION 10.98
Sex/Gender, Customized
Phase 1 - Amlodipine+olmesartan - Female
112 participants
Sex/Gender, Customized
Phase 1 - Amlodipine+olmesartan - Male
145 participants
Sex/Gender, Customized
Phase 2 - Amlodipine+valsartan - Female
76 participants
Sex/Gender, Customized
Phase 2 - Amlodipine+valsartan - Male
100 participants
Sex/Gender, Customized
Phase 3 - Amlodipine+valsartan+HCTZ - Female
32 participants
Sex/Gender, Customized
Phase 3 - Amlodipine+valsartan+HCTZ - Male
59 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 2570 / 1760 / 91
serious
Total, serious adverse events
1 / 2570 / 1760 / 91

Outcome results

Primary

Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Core Phase of the Study

The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureValue (MEAN)Dispersion
Amlodipine+Valsartan - Phase 2Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Core Phase of the Study-9.13 mmHg95% Confidence Interval 1.97
Primary

Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Extension Phase of the Study

The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 3 (Week 8) to end of Phase 3 (Week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureValue (MEAN)
Amlodipine+Valsartan - Phase 2Change in Mean Sitting Diastolic Blood Pressure (msDBP) During the Extension Phase of the Study-5.22 mmHg
Secondary

Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Core Phase of the Study

The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureValue (MEAN)Dispersion
Amlodipine+Valsartan - Phase 2Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Core Phase of the Study-7.87 mmHg95% Confidence Interval 9.48
Secondary

Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Extension Phase of the Study

The arm in which the highest sitting diastolic pressures were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, systolic/diastolic blood pressure were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 3 (Week 8) to end of Phase 3 (Week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureValue (MEAN)
Amlodipine+Valsartan - Phase 2Change in Mean Sitting Systolic Blood Pressure (msSBP) During the Extension Phase of the Study-10.84 mmHg
Secondary

Change in Sitting Pulse Pressure During the Core Phase of the Study

Pulse pressure is systolic pressure (SP) minus diastolic pressure (DP). The arm in which the highest sitting DPs were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, SP and DP were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureValue (MEAN)Dispersion
Amlodipine+Valsartan - Phase 2Change in Sitting Pulse Pressure During the Core Phase of the Study1.26 mmHg95% Confidence Interval 9.64
Secondary

Change in Sitting Pulse Pressure During the Extension Phase of the Study

Pulse pressure is systolic pressure (SP) minus diastolic pressure (DP). The arm in which the highest sitting DPs were found at study entry was the arm used for all subsequent readings. A calibrated sphygmomanometer and appropriate size cuff were used to measure arterial sitting blood pressure (BP) at trough with the arm supported at the level of the heart. At each study visit, after having the patient in a sitting position for at least 5 minutes, SP and DP were measured 3 times at 1-2 minute intervals. A mean was calculated from the 3 measurements. A negative change indicates improvement.

Time frame: Baseline Phase 3 (Week 8) to end of Phase 3 (Week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureValue (MEAN)
Amlodipine+Valsartan - Phase 2Change in Sitting Pulse Pressure During the Extension Phase of the Study-5.62 mmHg
Secondary

Change in Sitting Pulse Rate During the Core Phase of the Study

Pulse rate was measured once for 30 seconds just prior to blood pressure measurements in the sitting position.

Time frame: Baseline Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureValue (MEAN)
Amlodipine+Valsartan - Phase 2Change in Sitting Pulse Rate During the Core Phase of the Study-1.93 BPM (beats per minute)
Secondary

Change in Sitting Pulse Rate During the Extension Phase of the Study

Pulse rate was measured once for 30 seconds just prior to blood pressure measurements in the sitting position.

Time frame: Baseline Phase 3 (Week 8) to end of Phase 3 (week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureValue (MEAN)
Amlodipine+Valsartan - Phase 2Change in Sitting Pulse Rate During the Extension Phase of the Study0.09 BPM (beats per minute)
Secondary

Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Core Phase of the Study

Blood pressure response was defined as msSBP \< 140 mmHg or a 20 mmHg decrease in msSBP at the end of Phase 2 (Week 8) compared to Baseline in Phase 2 (week 4) or a msDBP \< 90 mmHg or a 10 mmHg decrease in msDBP at the end of Phase 2 compared to Baseline in Phase 2.

Time frame: Baseline of Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureGroupValue (NUMBER)
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Core Phase of the StudymsSBP response47.4 Percentage of participants
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Core Phase of the StudymsDBP response73.1 Percentage of participants
Secondary

Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Extension Phase of the Study

Blood pressure response was defined as msSBP \< 140 mmHg or a 20 mmHg decrease in msSBP at the end of Phase 3 compared to Baseline in Phase 3 or a msDBP \< 90 mmHg or a 10 mmHg decrease in msDBP at the end of Phase 3 compared to Baseline in Phase 3.

Time frame: Baseline of Phase 3 (Week 8) to end of Phase 3 (Week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureGroupValue (NUMBER)
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Extension Phase of the StudymsSBP response61.5 Percentage of participants
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved a Protocol-defined Blood Pressure Response During the Extension Phase of the StudymsDBP response83.5 Percentage of participants
Secondary

Percentage of Patients Who Achieved Normalized Blood Pressure During the Core Phase of the Study

Normalized Blood Pressure was defined as a msSBP \< 140 mmHg and/or a msDBP \< 90 mmHg.

Time frame: Baseline Phase 2 (Week 4) to end of Phase 2 (Week 8)

Population: Intent-to-treat population (ITT): All patients who took at least one dose of amlodipine plus valsartan who had at least one primary efficacy parameter evaluation. Patients who dropped out were included in the ITT population if there was any BP measurement available; their last available blood pressure measurement was used for the analysis.

ArmMeasureGroupValue (NUMBER)
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved Normalized Blood Pressure During the Core Phase of the StudymsSBP < 140 mmHg44.6 Percentage of participants
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved Normalized Blood Pressure During the Core Phase of the StudymsDBP < 90 mmHg72.6 Percentage of participants
Secondary

Percentage of Patients Who Achieved Normalized Blood Pressure During the Extension Phase of the Study

Normalized Blood Pressure was defined as a msSBP \< 140 mmHg and/or a msDBP \< 90 mmHg.

Time frame: Baseline Phase 3 (Week 8) to end of Phase 3 (Week 12)

Population: Safety population: All patients who took at least one dose of amlodipine 10 mg plus valsartan 160 mg plus HCTZ 12.5 mg.

ArmMeasureGroupValue (NUMBER)
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved Normalized Blood Pressure During the Extension Phase of the StudymsSBP < 140 mmHg59.3 Percentage of participants
Amlodipine+Valsartan - Phase 2Percentage of Patients Who Achieved Normalized Blood Pressure During the Extension Phase of the StudymsDBP < 90 mmHg83.5 Percentage of participants

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