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Study to Evaluate the Efficacy and Safety of Combination Aliskiren/Amlodipine in Patients Not Adequately Responding to Aliskiren Alone

A Randomized, Eight-week Double-blind, Parallel-group, Multicenter Study to Evaluate the Efficacy and Safety of the Combination of Aliskiren / Amlodipine (300/5 mg and 300/10 mg) in Comparison With Aliskiren 300 mg in Patients With Essential Hypertension Not Adequately Responsive to Aliskiren 300 mg Monotherapy

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00777946
Enrollment
818
Registered
2008-10-22
Start date
2008-10-31
Completion date
2009-05-31
Last updated
2011-07-12

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

Conditions

Hypertension

Keywords

Aliskiren, Amlodipine, Non-responder to aliskiren

Brief summary

This study will assess the safety and efficacy of combination aliskiren/amlodipine in patients not adequately controlled with aliskiren alone

Interventions

DRUGAliskiren/Amlodipine 300/5 mg

Aliskiren/Amlodipine 300/5 mg tablet taken orally once a day with a glass of water.

Aliskiren 300 mg tablet taken orally once a day with a glass of water.

DRUGAliskiren/Amlodipine 300/10 mg

Aliskiren/Amlodipine 300/10 mg taken orally once a day with a glass of water.

Placebo to Aliskiren tablet taken orally once a day.

Placebo to Aliskiren/Amlodipine taken orally once a day.

Sponsors

Novartis
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Newly diagnosed patients or patients who have not been treated for hypertension within the 4 weeks prior to Visit 1 must have a mean sitting Diastolic Blood Pressure (msDBP) ≥ 95 mmHg and \< 110 mmHg at Visits 1 and 2 * Patients who have been treated for hypertension within the 4 weeks prior to - Visit 1 must have a msDBP ≥ 90 mmHg and \< 110 mmHg at Visit 2 * All patients must have a msDBP ≥ 90 mmHg and \< 110 mmHg at Visit 4

Exclusion criteria

* Severe hypertension * Pregnant or nursing (lactating) women * Women of child-bearing potential * Previous or current diagnosis of heart failure New York Heart Association (NYHA Class II-IV) * Serum potassium ≥ 5.3 mEq/L (mmol/L) at Visit 1 * Uncontrolled Type 1 or Type 2 diabetes mellitus * Hypersensitivity to renin inhibitors, calcium channel blockers, or to drugs with Similar chemical structures * History of hypertensive encephalopathy or cerebrovascular accident, or history of transient ischemic attack (TIA), myocardial infarction, coronary bypass surgery, or any percutaneous coronary intervention Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to End of Study in the Mean Sitting Diastolic Blood Pressure (msDBP)Baseline, End of Study (Week 8)After the patient had been sitting for 5 minutes, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. The difference of the msDBP at baseline from the msDBP at 8 weeks was calculated using an Analysis of Covariance (ANCOVA) model with baseline as a covariate and treatment and region as two factors.

Secondary

MeasureTime frameDescription
Change From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)Baseline, End of Study (Week 8)After the patient had been sitting for 5 minutes, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. The difference of the msSBP at baseline from the msSBP at 8 weeks was calculated using an ANCOVA model with baseline as a covariate and treatment and region as two factors.
Number of Participants With Serious Adverse Events and Adverse Events8 weeksThe number of participants with any Serious Adverse Event and the number of participants with Adverse Events in any system organ class. Additional information about Adverse Events can be found in the Adverse Event Section.
Percentage of Participants Achieving Blood Pressure Control8 weeksAfter the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. Blood Pressure control was defined as having a mean sitting Diastolic Blood Pressure \<90 and a mean sitting Systolic Blood Pressure \<140.
Percentage of Participants Achieving a Diastolic Blood Pressure Response8 weeksAfter the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. A Diastolic Blood Pressure Response was defined as a mean sitting Diastolic Blood Pressure (msDBP) \<90 mmHg or a ≥ 10 mmHg reduction in msDBP from baseline.
Percentage of Participants Achieving a Systolic Blood Pressure Response8 weeksAfter the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. A Systolic Blood Pressure Response was defined as a mean sitting Systolic Blood Pressure (msSBP) \<140 mmHg or a ≥ 20 mmHg reduction in msSBP from baseline.

Countries

Estonia, France, Iceland, India, Italy, Lithuania, South Korea, Spain, Venezuela

Participant flow

Pre-assignment details

This study consisted of a 7 day wash-out period and a 4 week single-blind run-in period prior to the 8 week double-blind period. 2 of the 820 randomized patients were randomized in error, are not included in the 818 participants enrolled in the double-blind period, did not receive study drug & are not included in the Safety and Full Analysis Sets.

Participants by arm

ArmCount
Aliskiren 300 mg/Amlodipine 10 mg
Participants received 1 Aliskiren/Amlodipine 300/10mg tablet + 1 Placebo to Aliskiren tablet once daily in the morning for 8 weeks.
283
Aliskiren 300 mg/Amlodipine 5 mg
Participants received 1 Aliskiren/Amlodipine 300/5mg tablet + 1 Placebo to Aliskiren tablet once daily in the morning for 8 weeks.
277
Aliskiren 300 mg
Participants received 1 Aliskiren 300 mg tablet + 1 Placebo to Aliskiren/Amlodipine tablet orally once daily in the morning for 8 weeks.
260
Total820

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event1113
Overall StudyCondition no longer required study drug100
Overall StudyLack of Efficacy009
Overall StudyLost to Follow-up310
Overall StudyPatient withdrew consent323
Overall StudyProtocol deviation211
Overall StudyRandomized in error110

Baseline characteristics

CharacteristicAliskiren 300 mg/Amlodipine 10 mgAliskiren 300 mg/Amlodipine 5 mgAliskiren 300 mgTotal
Age Continuous54.6 years
STANDARD_DEVIATION 10.67
54.4 years
STANDARD_DEVIATION 10.69
54.7 years
STANDARD_DEVIATION 10.99
54.6 years
STANDARD_DEVIATION 10.77
Sex: Female, Male
Female
120 Participants101 Participants103 Participants324 Participants
Sex: Female, Male
Male
163 Participants176 Participants157 Participants496 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
26 / 2826 / 2761 / 260
serious
Total, serious adverse events
3 / 2824 / 2761 / 260

Outcome results

Primary

Change From Baseline to End of Study in the Mean Sitting Diastolic Blood Pressure (msDBP)

After the patient had been sitting for 5 minutes, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. The difference of the msDBP at baseline from the msDBP at 8 weeks was calculated using an Analysis of Covariance (ANCOVA) model with baseline as a covariate and treatment and region as two factors.

Time frame: Baseline, End of Study (Week 8)

Population: Full Analysis Set (all randomized patients who received study drug). Three patients (1 in Aliskiren 300 mg/Amlodipine 10 mg group and 2 in the Aliskiren 300 mg/Amlodipine 5 mg group were excluded from the analysis due to lack of post-baseline assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aliskiren 300 mg/Amlodipine 10 mgChange From Baseline to End of Study in the Mean Sitting Diastolic Blood Pressure (msDBP)-13.07 mm HgStandard Error 0.463
Aliskiren 300 mg/Amlodipine 5 mgChange From Baseline to End of Study in the Mean Sitting Diastolic Blood Pressure (msDBP)-10.54 mm HgStandard Error 0.467
Aliskiren 300 mgChange From Baseline to End of Study in the Mean Sitting Diastolic Blood Pressure (msDBP)-5.84 mm HgStandard Error 0.48
Secondary

Change From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)

After the patient had been sitting for 5 minutes, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. The difference of the msSBP at baseline from the msSBP at 8 weeks was calculated using an ANCOVA model with baseline as a covariate and treatment and region as two factors.

Time frame: Baseline, End of Study (Week 8)

Population: Full Analysis Set (all randomized patients who received study drug). Three patients (1 in Aliskiren 300 mg/Amlodipine 10 mg group and 2 in the Aliskiren 300 mg/Amlodipine 5 mg group were excluded from the analysis due to lack of post-baseline assessment.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aliskiren 300 mg/Amlodipine 10 mgChange From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)-18.04 mm HgStandard Error 0.78
Aliskiren 300 mg/Amlodipine 5 mgChange From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)-14.43 mm HgStandard Error 0.788
Aliskiren 300 mgChange From Baseline to End of Study in the Mean Sitting Systolic Blood Pressure (msSBP)-6.42 mm HgStandard Error 0.809
Secondary

Number of Participants With Serious Adverse Events and Adverse Events

The number of participants with any Serious Adverse Event and the number of participants with Adverse Events in any system organ class. Additional information about Adverse Events can be found in the Adverse Event Section.

Time frame: 8 weeks

Population: Safety Population consisted of all randomized participants who received study drug.

ArmMeasureGroupValue (NUMBER)
Aliskiren 300 mg/Amlodipine 10 mgNumber of Participants With Serious Adverse Events and Adverse EventsSerious Adverse Events3 participants
Aliskiren 300 mg/Amlodipine 10 mgNumber of Participants With Serious Adverse Events and Adverse EventsAdverse Events85 participants
Aliskiren 300 mg/Amlodipine 5 mgNumber of Participants With Serious Adverse Events and Adverse EventsSerious Adverse Events4 participants
Aliskiren 300 mg/Amlodipine 5 mgNumber of Participants With Serious Adverse Events and Adverse EventsAdverse Events80 participants
Aliskiren 300 mgNumber of Participants With Serious Adverse Events and Adverse EventsSerious Adverse Events1 participants
Aliskiren 300 mgNumber of Participants With Serious Adverse Events and Adverse EventsAdverse Events59 participants
Secondary

Percentage of Participants Achieving a Diastolic Blood Pressure Response

After the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. A Diastolic Blood Pressure Response was defined as a mean sitting Diastolic Blood Pressure (msDBP) \<90 mmHg or a ≥ 10 mmHg reduction in msDBP from baseline.

Time frame: 8 weeks

Population: Full Analysis Set (all randomized patients who received study drug). Three patients (1 in Aliskiren 300 mg/Amlodipine 10 mg group and 2 in the Aliskiren 300 mg/Amlodipine 5 mg group were excluded from the analysis due to lack of post-baseline assessment.

ArmMeasureValue (NUMBER)
Aliskiren 300 mg/Amlodipine 10 mgPercentage of Participants Achieving a Diastolic Blood Pressure Response83.6 Percentage of participants
Aliskiren 300 mg/Amlodipine 5 mgPercentage of Participants Achieving a Diastolic Blood Pressure Response77.7 Percentage of participants
Aliskiren 300 mgPercentage of Participants Achieving a Diastolic Blood Pressure Response51.5 Percentage of participants
Secondary

Percentage of Participants Achieving a Systolic Blood Pressure Response

After the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. A Systolic Blood Pressure Response was defined as a mean sitting Systolic Blood Pressure (msSBP) \<140 mmHg or a ≥ 20 mmHg reduction in msSBP from baseline.

Time frame: 8 weeks

Population: Full Analysis Set (all randomized patients who received study drug). Three patients (1 in Aliskiren 300 mg/Amlodipine 10 mg group and 2 in the Aliskiren 300 mg/Amlodipine 5 mg group were excluded from the analysis due to lack of post-baseline assessment.

ArmMeasureValue (NUMBER)
Aliskiren 300 mg/Amlodipine 10 mgPercentage of Participants Achieving a Systolic Blood Pressure Response77.2 Percentage of participants
Aliskiren 300 mg/Amlodipine 5 mgPercentage of Participants Achieving a Systolic Blood Pressure Response69.7 Percentage of participants
Aliskiren 300 mgPercentage of Participants Achieving a Systolic Blood Pressure Response43.8 Percentage of participants
Secondary

Percentage of Participants Achieving Blood Pressure Control

After the patient had been sitting for 5 minutes, with the back supported and both feet placed on the floor, systolic and diastolic blood pressures were measured 3 times using the automatic Blood Pressure monitor and appropriate size cuff. The repeat sitting measurements were made at 1-2 minute intervals and the mean of these 3 sitting blood pressure measurements was used as the average sitting blood pressure for that visit. Blood Pressure control was defined as having a mean sitting Diastolic Blood Pressure \<90 and a mean sitting Systolic Blood Pressure \<140.

Time frame: 8 weeks

Population: Full Analysis Set (all randomized patients who received study drug). Three patients (1 in Aliskiren 300 mg/Amlodipine 10 mg group and 2 in the Aliskiren 300 mg/Amlodipine 5 mg group were excluded from the analysis due to lack of post-baseline assessment.

ArmMeasureValue (NUMBER)
Aliskiren 300 mg/Amlodipine 10 mgPercentage of Participants Achieving Blood Pressure Control65.5 Percentage of participants
Aliskiren 300 mg/Amlodipine 5 mgPercentage of Participants Achieving Blood Pressure Control56.5 Percentage of participants
Aliskiren 300 mgPercentage of Participants Achieving Blood Pressure Control31.5 Percentage of participants

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