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HypertensionPhase 3ACRPPNCT05170061

24 Hour Ambulatory Cardiac Oxygen Consumption

A Phase 3 study testing Nebivolol, Valsartan and Nebivolol/valsartan combination in people with Hypertension, run by State University of New York at Buffalo at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A randomized,double-blind, active controlled,15 week study to evaluate the effects of nebivolol and valsartan alone and in combination on 24-hour ambulatory cardiac work and variability of heart rate-mean central systolic pressure product. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hypertension
What is being tested?
Nebivolol, Valsartan and Nebivolol/valsartan combination
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
1 siteUnited States
Study dates
Feb 2013to Dec 2014
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects with chronic hypertension, treated or untreated
  • Males and females, 18 years or older
  • Seated clinic systolic BP 145-184 mmHg inclusive or
  • Seated clinic diastolic BP 92-119 mmHg, inclusive.

Who cannot join

  • Subjects with any of the following conditions will be excluded:
  • Any acute or chronic medical condition that, in the judgment of the investigator, renders the subject unable to complete the study, would interfere with optimal participation in the study, or cause significant risk to the subject
  • Concomitant or probable need for treatment with other cardiovascular or antihypertensive drugs that may affect blood pressure or influence the effects of study drugs, (e.g. NSAIDs, beta-agonist inhalers therapy for bronchospastic asthma, diuretics); other stable chronic medications that have little effect on study drugs (e.g. diabetes medications, hormone replacements, chronic pain medications. osteoporosis drugs, vitamins, cholesterol drugs, etc.) are permitted if continued at stable doses throughout study.
  • History of clinically significant adverse events with beta-blocker or angiotensin-receptor blocker
  • Known or suspected secondary hypertension (e.g., renovascular hypertension, primary hyperaldosteronism, etc.)
  • Known ischemic heart disease requiring continuous beta-blocker therapy (includes angina, prior transmural myocardial infarction, coronary artery bypass graft surgery or percutaneous transluminal coronary angioplasty or stenting within 6 months prior to study entry).
Show all 13Show fewer
  • Dilated cardiomyopathy (NYHA Functional Class III-IV)
  • Clinically significant valvular heart disease or obstructive hypertrophic cardiomyopathy
  • Presence of clinically significant ventricular or supraventricular arrhythmias (e.g. atrial fibrillation/flutter), pre-excitation syndrome, second or third degree atrioventricular block, other conduction defects necessitating the implantation of a permanent cardiac pacemaker, or sick sinus syndrome.
  • Chronic kidney disease (serum creatinine >2.5 mg/dL)
  • Uncontrolled diabetes mellitus (hemoglobin A1c > 10%)
  • History of alcohol or other drug abuse within 6 months prior to enrollment
  • Positive pregnancy test or failure to practice adequate contraception in women of child-bearing potential

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Erie County Medical Center

    Buffalo, New York, 14215

Other trials in United States

About this study

Official title: Ambulatory 24-Hour Cardiac Oxygen Consumption and Blood Pressure-Heart Rate Variability: Effects of Nebivolol and Valsartan Alone and in Combination

A randomized,double-blind, active controlled,15 week study to evaluate the effects of nebivolol and valsartan alone and in combination on 24-hour ambulatory cardiac work and variability of heart rate-mean central systolic pressure product.

Read the detailed description

Subjects with hypertension (systolic blood pressure (SBP) >140 or diastolic blood pressure (DBP)>90, n=26) were studied using a double-blinded, forced-titration, sequence-controlled, crossover design with 3 experimental periods: Valsartan 320, nebivolol 40, and nebivolol/valsartan 320/40 mg daily. After 4 weeks of each drug, ambulatory pulse wave analysis (IEM MobilOGraph) was performed every 20 min for 24-hours. The primary hypothesis was that nebivolol/valsartan combination therapy would be superior to valsartan monotherapy in reducing mean 24-hour mean myocardial oxygen consumption determined by 24-hour ambulatory heart rate-central systolic pressure product [ACRPP]. A secondary hypothesis was that the combination would also reduce the variability of 24-hour myocardial oxygen consumption.

Conditions
Hypertension
Being tested
Nebivolol, Valsartan, Nebivolol/valsartan combination
Keywords
Myocardial oxygen consumption, Systolic blood pressure, Diastolic blood pressure, Variability in hemodynamic indicators, Valsartan, Nebivolol, IEM ambulatory monitoring
Medical subject headings
Hypertension

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NebivololDrug

    Also called Bystolic

    Nebivolol 20 mg daily (1 week) followed by nebivolol 40 mg daily (3 weeks) followed by nebivolol 20 mg daily (1 week)

  • ValsartanDrug

    Also called Diovan

    Valsartan 160 mg daily (1 week) followed by valsartan 320 mg daily (3 weeks) followed by valsartan 160 mg daily (1 week).

  • Nebivolol/valsartan combinationDrug

    Also called Diovan/Bystolic

    Valsartan/Nebivolol, 160/20 mg daily (1 week) followed by valsartan/nebivolol 320/40 mg daily (3 weeks) followed by valsartan/nebivolol 160/20 mg daily (1 week)

Study groups in NCT05170061
Study groupRoleWhat they receive
Sequence 1: Nebivolol first, then valsartan, then combination of nebivolol/valsartanActive comparatorNebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily; then Valsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily; then Combination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination
Sequence 2: Nebivolol first, then combination of nebivolol/valsartan; then valsartanActive comparatorNebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily; then combination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily; then Valsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination
Sequence 3: Valsartan first, then Nebivolol, then combination of nebivolol/valsartan,Active comparatorValsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily; then Nebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily; then combination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily;
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination
Sequence 4: Valsartan first, then combination of nebivolol/valsartan, then Nebivolol,Active comparatorValsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily; then combination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily; then Nebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily;
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination
Sequence 5: Combination of nebivolol/valsartan first, then Nebivolol, then Valsartan,Active comparatorCombination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily; then Nebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily; then Valsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily;
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination
Sequence 6: Combination of nebivolol/valsartan first, then Valsartan, then Nebivolol, ,Active comparatorCombination of nebivolol/valsartan 20/160 mg daily for 1 week followed by 40/320 mg daily for 3 weeks, followed by 1-week down-titration to 20/160 mg daily; then Valsartan, 160 mg daily for 1 week followed by 320 mg daily for 3 weeks, followed by 1-week down-titration to 160 mg daily; then Nebivolol, 20 mg daily for 1 week followed by 40 mg daily for 3 weeks, followed by 1 week down-titration to 20 mg daily; then
Receives: Drug: Nebivolol; Drug: Valsartan; Drug: Nebivolol/valsartan combination

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. ACRPP: 24-hour Ambulatory Central Rate-pressure Product (Also Called TTI, CTTI)

    ACRPP is the product of estimated aortic mean systolic pressure (mean aortic pressure estimated using a transfer function applied to brachial cuff blood pressure) during the systolic time interval adjusted for heart rate. Units are (mmHg*beats/min).

    Measured: measurement after 4 weeks in each treatment arm

Secondary outcomes (21)
  1. Cuff SBP

    Seated office cuff systolic blood pressure (mmHg)

    Measured: After 4 weeks in each treatment arm

  2. Cuff DBP

    Seated office cuff diastolic blood pressure (mmHg)

    Measured: After 4 weeks in each treatment arm

  3. Ambulatory Brachial Double Product

    24-hour mean heart rate x 24-hour mean systolic BP

    Measured: After 4 weeks in each treatment arm

  4. Ambulatory Mean Heart Rate

    Mean heart rate over 24 hours

    Measured: After 4 weeks in each treatment arm

  5. Ambulatory Mean Central Diastolic BP

    Mean ambulatory aortic (central) diastolic pressure over 24 hours

    Measured: After 4 weeks in each treatment arm

  6. 24-hour Brachial Systolic BP

    Mean 24-hour ambulatory systolic BP

    Measured: 4 weeks

  7. 24-hour Brachial Diastolic BP

    Mean 24-hour ambulatory cuff diastolic BP

    Measured: After 4 weeks in each treatment arm

  8. Daytime ACRPP (Ambulatory Central Rate-Pressure Product (Also Called TTI, CTTI)

    Determined by ambulatory heart rate-central systolic pressure product during self-reported waking hours at the end of each study phase

    Measured: After 4 weeks in each treatment arm

  9. Nighttime ACRPP

    Determined by ambulatory heart rate-central systolic pressure product during self-reported sleeping hours

    Measured: After 4 weeks in each treatment arm

  10. Daytime Heart Rate

    Mean ambulatory heart rate during self-reported waking hours

    Measured: After 4 weeks in each treatment arm

  11. Nighttime Heart Rate

    Mean ambulatory heart rate during self-reported sleeping hours

    Measured: 4 weeks

  12. Daytime Central Systolic Pressure

    Mean ambulatory central systolic pressure during self-reported waking hours

    Measured: After 4 weeks in each treatment arm

  13. Nighttime Central Systolic Pressure

    Mean ambulatory central systolic pressure during self-reported sleeping hours

    Measured: 4 weeks

  14. Daytime Brachial Systolic Pressure

    Mean ambulatory brachial systolic pressure during self-reported waking hours

    Measured: After 4 weeks in each treatment arm

  15. Nighttime Brachial Systolic Pressure

    Mean ambulatory brachial systolic pressure during self-reported sleeping hours

    Measured: 4 weeks

  16. Daytime Central Diastolic Pressure

    Mean ambulatory central diastolic pressure during self-reported waking hours

    Measured: 4 weeks

  17. Nighttime Central Diastolic Pressure

    Mean ambulatory central diastolic pressure during self-reported sleeping hours

    Measured: After 4 weeks in each treatment arm

  18. Daytime Brachial Diastolic Pressure

    Mean ambulatory brachial diastolic pressure during self-reported waking hours

    Measured: 4 weeks

  19. Nighttime Brachial Diastolic Pressure

    Mean ambulatory brachial diastolic pressure during self-reported sleeping hours

    Measured: After 4 weeks in each treatment arm

  20. Ambulatory Daytime Brachial Rate-pressure Product

    Mean ambulatory heart rate x brachial systolic blood pressure product during self-reported waking hours

    Measured: After 4 weeks in each treatment arm

  21. Ambulatory Nighttime Brachial Rate-pressure Product

    Mean ambulatory heart rate x brachial systolic blood pressure product during self-reported sleeping hours

    Measured: After 4 weeks in each treatment arm

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Dec 2021
  2. Study startFeb 2013
  3. Primary completionSep 2014
  4. Study completionDec 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Random-order-entry 3-way crossover of active treatments; all participants receive all 3 active treatments with 6 possible experimental sequences (arms)
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05170061
Sponsor's protocol ID
BYS-IT-76
Acronym
ACRPP
Status last verified
May 2025
First submitted
22 Dec 2014
Last updated
8 Jun 2025
Data monitoring committee
Yes

Publications

  • Izzo JL Jr, Khan SU, Saleem O, Osmond PJ. Ambulatory 24-hour cardiac oxygen consumption and blood pressure-heart rate variability: effects of nebivolol and valsartan alone and in combination. J Am Soc Hypertens. 2015 Jul;9(7):526-35. doi: 10.1016/j.jash.2015.03.009. Epub 2015 Mar 28.

    PubMed 26116459

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Nebivolol, Valsartan and Nebivolol/valsartan combination in people with Hypertension, run by State University of New York at Buffalo at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Jun 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ACRPP: 24-hour Ambulatory Central Rate-pressure Product (Also Called TTI, CTTI) (time frame: measurement after 4 weeks in each treatment arm). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05170061, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2025.

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