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CompletedNCT00865020ASSERTIVEUpdated Jul 22, 2011Results posted

Efficacy and Safety of Aliskiren 300 mg Compared to Telmisartan 80 mg After 1 Week of Treatment Withdrawal

A Phase 4 interventional study of Aliskiren and Telmisartan in Hypertension, sponsored by Novartis. Completed at 16 sites in 16 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-07-22.

Sponsored by Novartis · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
822
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study was specifically designed to provide additional information on the mechanism of action of direct renin inhibition postulating the higher-level RAS cascade inhibition. The purpose of this study was to compare the prolonged efficacy and safety of aliskiren to that of telmisartan in mild to moderate hypertensive patients in the 24 hrs Ambulatory Blood Pressure Monitoring setting after a one week treatment withdrawal.

02

Conditions studied

  • Hypertension

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Keywords

  • Hypertension
  • ABPM
  • systolic blood pressure
  • diastolic blood pressure
  • cardiovascular disease
  • aliskiren
  • telmisartan
03

In context

Hypertension

6,689 studies on the registry are indexed under Hypertension; 965 are open to participants now.

This study's enrollment of 822 is above the median of 90 across 4,995 interventional studies indexed under Hypertension.

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Lead sponsor

Novartis is the lead sponsor of 703 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Mean sitting systolic blood pressure ≥ 140 mmHg and \< 180 mmHg
  • 24-hr mean ambulatory systolic blood pressure ≥ 135 mmHg

Exclusion criteria

Exclusion Criteria:

  • Severe hypertension defined as mean sitting systolic blood pressure ≥ 180 mmHg and/or mean sitting diastolic blood pressure ≥ 110 mmHg
  • Patients with Type 1 diabetes mellitus
  • Secondary hypertension of any etiology
  • Other protocol-defined inclusion/exclusion criteria may apply
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
822 participants (actual)

Study arms

  • Experimental
    Aliskiren 300 mg

    Aliskiren tablets starting at a dose of 150 mg taken orally daily for 2 weeks followed by a dose of 300 mg taken orally for 10 weeks and placebo (withdrawal) for one week. Participants took Placebo to Aliskiren: 1 tablet for the first 2 weeks and 2 tablets during the one week withdrawal period.

    Drug: Aliskiren · Drug: Placebo to Aliskiren

  • Active comparator
    Telmisartan 80 mg

    Telmisartan capsules starting at a dose of 40 mg taken orally daily for 2 weeks followed by a dose of 80 mg taken orally daily for 10 weeks and placebo (withdrawal) for one week. Participants took Placebo to Telmisartan: 1 capsule for the first 2 weeks and 2 capsules during the one week withdrawal period.

    Drug: Telmisartan · Drug: Placebo to Telmisartan

Interventions

  • DrugAliskiren

    Aliskiren 150 mg tablets taken orally daily. 1 tablet for the first two weeks followed by 2 tablets for 10 weeks.

  • DrugTelmisartan

    Telmisartan 40 mg capsules taken orally daily. 1 capsule the first 2 weeks followed by 2 capsules for 10 weeks.

  • DrugPlacebo to Aliskiren

    Placebo to Aliskiren tablets taken orally daily. 1 Tablet for the first 2 weeks and 2 tablets during the no treatment (withdrawal) week.

  • DrugPlacebo to Telmisartan

    Placebo to Telmisartan capsule taken orally daily. 1 capsule for the first 2 weeks and 2 capsules during the no treatment (withdrawal) week.

06

What researchers measure

Primary outcomes

  1. Change in 24 Hour (24-Hr) Mean Ambulatory Systolic Blood Pressure (MASBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period

    An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at week 12 (end of the active treatment) and at week 13 (end of the day 7 withdrawal period). The 24 Hour MASBP was calculated by taking the mean of all Ambulatory Systolic Blood Pressure readings for the 24 hour period. The difference of the 24 hour MASBP from the end of the active treatment to Day 7 of the treatment withdrawal period was calculated using a two way analysis of variance with treatment and region as factors.

    Time frame: 12 weeks, 13 weeks

Secondary outcomes

  1. Change in 24 Hour (24-hr) Mean Ambulatory Diastolic Blood Pressure (MADBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period

    An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at week 12 (end of the active treatment) and at week 13 (end of the day 7 withdrawal period). The 24 Hour MADBP was calculated by taking the mean of all Ambulatory Diastolic Blood Pressure readings for the 24 hour period. The difference of the 24 hour MADBP from the end of the active treatment to Day 7 of the withdrawal period was calculated using a two way analysis of variance with treatment and region as factors.

    Time frame: 12 weeks, 13 weeks

  2. Change in 24-hr Mean Ambulatory Systolic Blood Pressure (MASBP) and Mean Ambulatory Diastolic Blood Pressure (MADBP) From Baseline to Day 7 of the Withdrawal Period

    An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at Baseline (at Randomization) and at week 13 (day 7 of the withdrawal period). The 4 Hour MASBP and MADBP was calculated by taking the mean of all Ambulatory Blood Pressure readings during the 24 hour period. The difference of the 24 hour measurements from baseline to day 7 of the withdrawal period were calculated using a two way analysis of variance with treatment and region as factors and baseline as a covariate.

    Time frame: Baseline, 13 weeks

  3. Change in the Mean Sitting Systolic Blood Pressure (msSBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period

    Blood Pressure was measured in the office after the patient was sitting for 5 minutes. The average of 3 readings 1-2 minutes apart were used in the analysis. The change in the double-blind period was calculated from the end of active treatment at week 12 to the Baseline (Randomization) using Analysis of Covariance with treatment and region as factors and baseline msSBP as a covariate. The change in the treatment interruption period was calculated from day 7 of the withdrawal period at week 13 to the end of the active treatment using Analysis of Variance with treatment and region as factors.

    Time frame: Baseline, 12 weeks, 13 weeks

  4. Change in the Mean Diastolic Sitting Blood Pressure (msDBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period

    Blood Pressure was measured in the office after the patient was sitting for 5 minutes. The average of 3 readings 1-2 min. apart were used in the analysis. The change in the double-blind period was calculated from the end of active treatment at week 12 to the Baseline (Randomization) using Analysis of Covariance with treatment and region as factors and baseline msDBP as a covariate. The change in the treatment interruption period was calculated from day 7 of the withdrawal period at week 13 to the end of the active treatment using Analysis of Variance with treatment and region as factors.

    Time frame: Baseline, 12 weeks, 13 weeks

07

Results

Posted Jul 22, 2011

Participant flow

Participant flow — Overall Study
MilestoneAliskiren 300 mgTelmisartan 80 mg
Started414408
Completed365357
Not completed4951
Withdrew: Withdrawal by subject2216
Withdrew: Adverse event914
Withdrew: Abnormal test procedure result(s)68
Withdrew: Lost to follow-up64
Withdrew: Protocol deviation41
Withdrew: Administrative problems02
Withdrew: Abnormal laboratory value(s)01
Withdrew: Death01
Withdrew: Randomized but discontinued24

Outcome measures

PrimaryChange in 24 Hour (24-Hr) Mean Ambulatory Systolic Blood Pressure (MASBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period

An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at week 12 (end of the active treatment) and at week 13 (end of the day 7 withdrawal period). The 24 Hour MASBP was calculated by taking the mean of all Ambulatory Systolic Blood Pressure readings for the 24 hour period. The difference of the 24 hour MASBP from the end of the active treatment to Day 7 of the treatment withdrawal period was calculated using a two way analysis of variance with treatment and region as factors.

Time frame:
12 weeks, 13 weeks
Reported as:
Least squares mean · mmHg
Change in 24 Hour (24-Hr) Mean Ambulatory Systolic Blood Pressure (MASBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period
mmHgAliskiren 300 mgTelmisartan 80 mg
Change in 24 Hour (24-Hr) Mean Ambulatory Systolic Blood Pressure (MASBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period2.70 ± 0.4666.51 ± 0.461
SecondaryChange in 24 Hour (24-hr) Mean Ambulatory Diastolic Blood Pressure (MADBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period

An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at week 12 (end of the active treatment) and at week 13 (end of the day 7 withdrawal period). The 24 Hour MADBP was calculated by taking the mean of all Ambulatory Diastolic Blood Pressure readings for the 24 hour period. The difference of the 24 hour MADBP from the end of the active treatment to Day 7 of the withdrawal period was calculated using a two way analysis of variance with treatment and region as factors.

Time frame:
12 weeks, 13 weeks
Reported as:
Least squares mean · mmHg
Change in 24 Hour (24-hr) Mean Ambulatory Diastolic Blood Pressure (MADBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period
mmHgAliskiren 300 mgTelmisartan 80 mg
Change in 24 Hour (24-hr) Mean Ambulatory Diastolic Blood Pressure (MADBP) From the End of the Active Treatment Period to Day 7 of the Withdrawal Period2.09 ± 0.3284.21 ± 0.324
SecondaryChange in 24-hr Mean Ambulatory Systolic Blood Pressure (MASBP) and Mean Ambulatory Diastolic Blood Pressure (MADBP) From Baseline to Day 7 of the Withdrawal Period

An Ambulatory Blood Pressure Monitor measured a participants's blood pressure over a 24 hour period using an automated validated monitoring device at Baseline (at Randomization) and at week 13 (day 7 of the withdrawal period). The 4 Hour MASBP and MADBP was calculated by taking the mean of all Ambulatory Blood Pressure readings during the 24 hour period. The difference of the 24 hour measurements from baseline to day 7 of the withdrawal period were calculated using a two way analysis of variance with treatment and region as factors and baseline as a covariate.

Time frame:
Baseline, 13 weeks
Reported as:
Least squares mean · mmHg
Change in 24-hr Mean Ambulatory Systolic Blood Pressure (MASBP) and Mean Ambulatory Diastolic Blood Pressure (MADBP) From Baseline to Day 7 of the Withdrawal Period
mmHgAliskiren 300 mgTelmisartan 80 mg
MASBP-8.39 ± 0.542-5.59 ± 0.539
MADBP-5.05 ± 0.379-3.44 ± 0.377
SecondaryChange in the Mean Sitting Systolic Blood Pressure (msSBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period

Blood Pressure was measured in the office after the patient was sitting for 5 minutes. The average of 3 readings 1-2 minutes apart were used in the analysis. The change in the double-blind period was calculated from the end of active treatment at week 12 to the Baseline (Randomization) using Analysis of Covariance with treatment and region as factors and baseline msSBP as a covariate. The change in the treatment interruption period was calculated from day 7 of the withdrawal period at week 13 to the end of the active treatment using Analysis of Variance with treatment and region as factors.

Time frame:
Baseline, 12 weeks, 13 weeks
Reported as:
Least squares mean · mmHg
Change in the Mean Sitting Systolic Blood Pressure (msSBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period
mmHgAliskiren 300 mgTelmisartan 80 mg
Double-Blind Period (n1=374,371)-15.22 ± 0.744-14.64 ± 0.744
Treatment Interruption Period (n2=369,363)1.26 ± 0.6525.00 ± 0.658
SecondaryChange in the Mean Diastolic Sitting Blood Pressure (msDBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period

Blood Pressure was measured in the office after the patient was sitting for 5 minutes. The average of 3 readings 1-2 min. apart were used in the analysis. The change in the double-blind period was calculated from the end of active treatment at week 12 to the Baseline (Randomization) using Analysis of Covariance with treatment and region as factors and baseline msDBP as a covariate. The change in the treatment interruption period was calculated from day 7 of the withdrawal period at week 13 to the end of the active treatment using Analysis of Variance with treatment and region as factors.

Time frame:
Baseline, 12 weeks, 13 weeks
Reported as:
Least squares mean · mmHg
Change in the Mean Diastolic Sitting Blood Pressure (msDBP) as Measured at All Study Visits During the Double-blind Treatment Period and During the Treatment Withdrawal Period
mmHgAliskiren 300 mgTelmisartan 80 mg
Double-Blind Period (n1=374,371)-6.35 ± 0.453-6.60 ± 0.453
Treatment Interruption Period (n2=369,363)0.03 ± 0.3882.69 ± 0.392

Adverse events

Collected over 13 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Aliskiren 300 mg—3/411 (0.7%)15/411 (3.6%)
Telmisartan 80 mg—5/403 (1.2%)32/403 (7.9%)
Most frequent serious events
Most frequent serious events
EventAliskiren 300 mgTelmisartan 80 mg
Acute myocardial infarctionCardiac disorders1/4111/403
Angina unstableCardiac disorders0/4111/403
DiverticulitisInfections and infestations0/4111/403
Femur fractureInjury, poisoning and procedural complications0/4111/403
Ischaemic strokeNervous system disorders0/4111/403
Pancreatitis acuteGastrointestinal disorders1/4110/403
Transient ischaemic attackNervous system disorders1/4110/403
Most frequent other events
Most frequent other events
EventAliskiren 300 mgTelmisartan 80 mg
HeadacheNervous system disorders15/41132/403

Baseline characteristics

Age Continuous
Age Continuous(years)Aliskiren 300 mgTelmisartan 80 mgTotal
Mean55.8 ± 11.4656.0 ± 11.9155.9 ± 11.68
Sex: Female, Male
Sex: Female, Male(Participants)Aliskiren 300 mgTelmisartan 80 mgTotal
Female206178384
Male208230438
08

Study locations

16 sites
  • Investigative Site
    Sorocaba, Brazil
  • Investigative Site
    Gatineau, Canada
  • Investigative Site
    Guayaquil, Ecuador
  • Investigative Site
    Erfurt, Germany
  • Invesitagtive Site
    Budapest, Hungary
  • Investigative Site
    Cheongju, Korea, Republic of
  • Investigative Site
    Kuala Lumpur, Malaysia
  • Investigative Site
    Mexico City, Mexico
  • Investigative Site
    Panama City, Panama
  • Investigative Site
    Manila, Philippines
  • Investigative Site
    Singapore, Singapore
  • Investigative Site
    Bratislava, Slovakia
  • Investigative Site
    Sevilla, Spain
  • Investigative Site
    Istanbul, Turkey
  • Investigative Site
    Westbury, United Kingdom
  • Investigative Site
    Caracas, Venezuela
09

References and documents

Publications

  • Williams B, Lacy PS, Baschiera F, Brunel P, Dusing R. Novel description of the 24-hour circadian rhythms of brachial versus central aortic blood pressure and the impact of blood pressure treatment in a randomized controlled clinical trial: The Ambulatory Central Aortic Pressure (AmCAP) Study. Hypertension. 2013 Jun;61(6):1168-76. doi: 10.1161/HYPERTENSIONAHA.111.00763. Epub 2013 Apr 29. PubMed 23630950 ↗
  • Dusing R, Brunel P, Baek I, Baschiera F. Sustained blood pressure-lowering effect of aliskiren compared with telmisartan after a single missed dose. J Clin Hypertens (Greenwich). 2013 Jan;15(1):41-7. doi: 10.1111/jch.12018. Epub 2012 Oct 9. PubMed 23282123 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 22, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00865020
Lead sponsor
Novartis
First posted
Mar 19, 2009
Start date
Mar 2009
Primary completion
Jun 2010
Completion
Jun 2010
Results posted
Jul 22, 2011
Last update
Jul 22, 2011

Study contacts

Novartis
study chair · Novartis
View the source record on ClinicalTrials.gov ↗

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