Skip to content

Aliskiren/Amlodipine/Hydrochlorothiazide (HCTZ) Versus Aliskiren/Amlodipine in US Minority Patients With Stage II Systolic Hypertension

An 8-week Multicenter, Randomized, Double-blind, Active Controlled, Parallel Group, Forced Titration Study to Evaluate the Efficacy and Safety of Aliskiren/Amlodipine/HCTZ Compared to Aliskiren/Amlodipine in US Minority Patients With Stage 2 Hypertension

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00942994
Acronym
ASCENT
Enrollment
412
Registered
2009-07-21
Start date
2009-06-30
Completion date
Unknown
Last updated
2011-06-08

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

Conditions

Hypertension

Keywords

Hypertension, Aliskiren, Amlodipine, HCTZ, Systolic blood pressure, Diastolic blood pressure, Stage II, Combination

Brief summary

The purpose of the study is to compare the combination of aliskiren, amlodipine and Hydrochlorothiazide (HCTZ) versus the combination of aliskiren and amlodipine as therapy in minority Stage 2 hypertensive patients.

Interventions

Amlodipine capsule (5 mg) Aliskiren/Amlodipine tablets (150/5 mg, 300/5 mg, 300/10 mg)

DRUGAliskiren/Amlodipine and Hydrochlorothiazide (HCTZ)

Aliskiren/Amlodipine tablets (150/5 mg, 300/5 mg, 300/10 mg) HCTZ capsule (12.5 mg, 25mg)

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

* Patients who are newly diagnosed or have a history of hypertension, who are eligible and able to participate in the study, and who give written informed consent before any assessment is performed. * Men or women 18 years and older of minority background; self-identified. * Patients with stage 2 hypertension defined as MSSBP ≥160 mmHg and \<200 mmHg at Visit 5 (randomization).

Exclusion criteria

* Patients with MSDBP ≥110 mmHg and/or MSSBP ≥200 mmHg as measured by office cuff at any visit. * Patients on 4 or more antihypertensive medications. * Patients with uncontrolled hypertension (MSSBP \>180 mmHg) taking more than 1 antihypertensive medication at Visit 1.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Baseline and week 8To evaluate change from baseline in MSSBP after 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension.

Secondary

MeasureTime frameDescription
Change From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Baseline and week 8To evaluate change from baseline in MSDBP after 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension.
Percentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 Weeks8 weeksTo evaluate the cumulative percentage of patients achieving Blood Pressure control (defined as patients achieving an MSSBP \<140 mmHg and MSDBP \<90 mmHg) during 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension. Cumulative refers to achieving BP control before or at the corresponding visit.
Percentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.8 weeksTo compare the cumulative percentage of responders (defined as patients with MSSBP \<140 mmHg or a decrease from baseline ≥20 mmHg) during 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension. Cumulative refers to achieving a response before or at the corresponding visit.

Other

MeasureTime frameDescription
Change From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Baseline, Week 2 and Week 4Primary objective at additional timepoint.
Change From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Baseline, Week 2 and Week 4Secondary objective at additional timepoint.

Countries

United States

Participant flow

Participants by arm

ArmCount
Aliskiren / Amlodipine / HCTZ
At week 0 patients were randomized to aliskiren/amlodipine 150/5 mg. At week 1, patients were force titrated to aliskiren/amlodipine/HCTZ 150/5/12.5 mg. At week 2, patients were force titrated to aliskiren/amlodipine/HCTZ 300/5/25 mg. At week 4, patients were force titrated to aliskiren/amlodipine/HCTZ 300/10/25 mg.
202
Aliskiren / Amlodipine
At week 0 patients were randomized to amlodipine 5 mg. At week 1, patients were force titrated to aliskiren/amlodipine 150/5 mg. At week 2, patients were force titrated to aliskiren/amlodipine 300/5 mg. At week 4, patients were force titrated to aliskiren/amlodipine 300/10 mg.
209
Total411

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAbnormal laboratory value(s)10
Overall StudyAdverse Event74
Overall StudyLost to Follow-up14
Overall StudyPatient withdrew consent58
Overall StudyProtocol deviation12
Overall StudyUnsatisfactory therapeutic effect11

Baseline characteristics

CharacteristicAliskiren / Amlodipine / HCTZAliskiren / AmlodipineTotal
Age Continuous55.7 years
STANDARD_DEVIATION 9.79
54.7 years
STANDARD_DEVIATION 10.19
55.2 years
STANDARD_DEVIATION 10
Sex: Female, Male
Female
107 Participants100 Participants207 Participants
Sex: Female, Male
Male
95 Participants109 Participants204 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
22 / 20218 / 209
serious
Total, serious adverse events
0 / 2023 / 209

Outcome results

Primary

Change From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8

To evaluate change from baseline in MSSBP after 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension.

Time frame: Baseline and week 8

Population: Analysis was based on the Full Analysis Set consisting of all patients to whom study medication had been assigned. Last-observation-carried-forward was used. Baseline was not carried forward. In the Aliskiren/Amlodipine/HCTZ group, 5 patients did not have a post baseline measure. Hence, change from baseline to week 8 is reported for 197 patients.

ArmMeasureGroupValue (MEAN)Dispersion
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Baseline [N=202, 209]167.08 mmHgStandard Deviation 7.277
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Week 8 [N=197, 209]130.73 mmHgStandard Deviation 13.06
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Change from baseline to week 8 [N=197, 209]-36.43 mmHgStandard Deviation 13.904
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Baseline [N=202, 209]167.41 mmHgStandard Deviation 7.118
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Week 8 [N=197, 209]137.87 mmHgStandard Deviation 16.013
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 8Change from baseline to week 8 [N=197, 209]-29.54 mmHgStandard Deviation 15.674
Secondary

Change From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8

To evaluate change from baseline in MSDBP after 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension.

Time frame: Baseline and week 8

Population: Analysis was based on the Full Analysis Set consisting of all patients to whom study medication had been assigned. Last-observation-carried-forward was used. Baseline was not carried forward. In the Aliskiren/Amlodipine/HCTZ group, 5 patients did not have a post baseline measure. Hence, change from baseline to week 8 is reported for 197 patients.

ArmMeasureGroupValue (MEAN)Dispersion
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Baseline [N=202, 209]95.25 mmHgStandard Deviation 8.985
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Change from baseline to week 8 [N=197, 209]-15.10 mmHgStandard Deviation 9.707
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Week 8 [N=197, 209]80.10 mmHgStandard Deviation 10.317
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Change from baseline to week 8 [N=197, 209]-12.08 mmHgStandard Deviation 9.062
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Baseline [N=202, 209]95.25 mmHgStandard Deviation 8.342
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 8Week 8 [N=197, 209]83.17 mmHgStandard Deviation 10.116
Secondary

Percentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 Weeks

To evaluate the cumulative percentage of patients achieving Blood Pressure control (defined as patients achieving an MSSBP \<140 mmHg and MSDBP \<90 mmHg) during 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension. Cumulative refers to achieving BP control before or at the corresponding visit.

Time frame: 8 weeks

Population: Analysis was based on the Full Analysis Set (FAS) consisting of all patients to whom study medication had been assigned.

ArmMeasureGroupValue (NUMBER)
Aliskiren / Amlodipine / HCTZPercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 250.5 Percentage of Participants
Aliskiren / Amlodipine / HCTZPercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 474.8 Percentage of Participants
Aliskiren / Amlodipine / HCTZPercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 881.7 Percentage of Participants
Aliskiren / AmlodipinePercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 240.2 Percentage of Participants
Aliskiren / AmlodipinePercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 457.4 Percentage of Participants
Aliskiren / AmlodipinePercentage of Patients Achieving Blood Pressure Control (Defined as MSSBP < 140 mmHg and MSDBP < 90 mmHg) During 8 WeeksWeek 867.9 Percentage of Participants
Secondary

Percentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.

To compare the cumulative percentage of responders (defined as patients with MSSBP \<140 mmHg or a decrease from baseline ≥20 mmHg) during 8 weeks of treatment with an aliskiren, amlodipine, and HCTZ treatment regimen versus an aliskiren and amlodipine treatment regimen in minority patients with Stage 2 hypertension. Cumulative refers to achieving a response before or at the corresponding visit.

Time frame: 8 weeks

Population: Analysis was based on the Full Analysis Set (FAS) consisting of all patients to whom study medication had been assigned.

ArmMeasureGroupValue (NUMBER)
Aliskiren / Amlodipine / HCTZPercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 279.2 Percentage of Responders
Aliskiren / Amlodipine / HCTZPercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 491.1 Percentage of Responders
Aliskiren / Amlodipine / HCTZPercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 892.6 Percentage of Responders
Aliskiren / AmlodipinePercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 272.2 Percentage of Responders
Aliskiren / AmlodipinePercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 484.7 Percentage of Responders
Aliskiren / AmlodipinePercentage of Responders (Defined as Patients With MSSBP < 140 mmHg or a Reduction From Baseline in MSSBP of ≥20 mmHg) During 8 Weeks.Week 891.9 Percentage of Responders
Other Pre-specified

Change From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4

Secondary objective at additional timepoint.

Time frame: Baseline, Week 2 and Week 4

Population: Analysis was based on the Full Analysis Set consisting of all patients to whom study medication had been assigned. Last-observation-carried-forward was used. Baseline was not carried forward. In the Aliskiren/Amlodipine/HCTZ group, 5 patients did not have a post baseline measure. Hence, change from baseline is reported for 197 patients.

ArmMeasureGroupValue (MEAN)Dispersion
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Baseline [N=202, 209]95.25 mmHgStandard Deviation 8.985
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Week 2 [N=197, 209]84.26 mmHgStandard Deviation 9.597
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Change from baseline to week 2 [N=197, 209]-10.95 mmHgStandard Deviation 8.569
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Week 4 [N=197, 209]81.29 mmHgStandard Deviation 9.177
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Change from baseline to week 4 [N=197, 209]-13.92 mmHgStandard Deviation 8.891
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Change from baseline to week 4 [N=197, 209]-9.91 mmHgStandard Deviation 7.606
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Baseline [N=202, 209]95.25 mmHgStandard Deviation 8.342
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Change from baseline to week 2 [N=197, 209]-9.01 mmHgStandard Deviation 7.872
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Week 2 [N=197, 209]86.24 mmHgStandard Deviation 8.908
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Diastolic Blood Pressure (MSDBP) at Week 2 and Week 4Week 4 [N=197, 209]85.35 mmHgStandard Deviation 9.567
Other Pre-specified

Change From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4

Primary objective at additional timepoint.

Time frame: Baseline, Week 2 and Week 4

Population: Analysis was based on the Full Analysis Set consisting of all patients to whom study medication had been assigned. Last-observation-carried-forward was used. Baseline was not carried forward. In the Aliskiren/Amlodipine/HCTZ group, 5 patients did not have a post baseline measure. Hence, change from baseline is reported for 197 patients.

ArmMeasureGroupValue (MEAN)Dispersion
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Baseline [N=202, 209]167.08 mmHgStandard Deviation 7.277
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Week 2 [N=197, 209]138.35 mmHgStandard Deviation 12.578
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Change from baseline to week 4 [N=197, 209]-34.74 mmHgStandard Deviation 12.145
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Change from baseline to week 2 [N=197, 209]-28.81 mmHgStandard Deviation 12.64
Aliskiren / Amlodipine / HCTZChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Week 4 [N=197, 209]132.42 mmHgStandard Deviation 12.027
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Change from baseline to week 4 [N=197, 209]-26.98 mmHgStandard Deviation 13.389
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Baseline [N=202, 209]167.41 mmHgStandard Deviation 7.118
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Week 2 [N=197, 209]143.77 mmHgStandard Deviation 13.922
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Week 4 [N=197, 209]140.43 mmHgStandard Deviation 13.961
Aliskiren / AmlodipineChange From Baseline in Mean Sitting Systolic Blood Pressure (MSSBP) at Week 2 and Week 4Change from baseline to week 2 [N=197, 209]-23.64 mmHgStandard Deviation 13.673

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