AzTrials
AzTrials

HypertensionPhase 4NCT01251146

A Randomized Controlled Study to Assess the Effects of Bisoprolol and Atenolol on Resting Heart Rate and Sympathetic Nervous System's Activity in Subjects With Essential Hypertension

A Phase 4 study testing Bisoprolol and Atenolol in people with Hypertension, run by Merck KGaA, Darmstadt, Germany at 2 sites in China.

Completed

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

Official record
Search all trials

Trial summary

This is a Phase 4, prospective, multi-centric and randomized controlled study to compare the effects of bisoprolol and atenolol on resting heart rate (RHR) and sympathetic nervous system's (SNS) activity in subjects with essential hypertension. Read more about this study

Who is it for?
Ages 25 to 65 years
Conditions the study is for
Hypertension
What is being tested?
Bisoprolol and Atenolol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
177 participants
Where
2 sitesChina
Study dates
Nov 2010to Feb 2012
Phase
Phase 4
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 25 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects aged between 25-65 years
  • Subjects with essential hypertension (EH)
  • Subjects with systolic blood pressure (SBP) 140-160 millimeter of mercury (mmHg) and diastolic blood pressure (DBP) 90-100 mmHg
  • Subjects with normal sinus rhythm
  • Subjects with resting heart rate (RHR) greater than 70 bpm
  • Subjects who give written informed consent

Who cannot join

  • Subjects with atrial fibrillation (AF)/sick sinus syndrome (SSS)/atrioventricular block II-III Grade (AVB II-III) without pacemaker
  • Subjects with bradyarrhythmia/hypotension
  • Subjects with unstable angina pectoris (UAP)/acute myocardial infarction (AMI)/heart failure (HF) (New York Heart Association [NYHA] Class III - IV)
  • Subjects with uncontrolled diabetes mellitus (DM)
  • Subjects with bronchial asthma
  • Subjects with gastro-intestinal ulcer or skin ulcer
Show all 13Show fewer
  • Subjects with liver dysfunction/renal impairment
  • Subjects treated with calcium channel blockers (except amlodipine) or other beta-blockers.
  • Subjects with glaucoma
  • Subjects with known allergic/intolerance to beta-blocker
  • Pregnant or lactating women
  • Subjects who had participated in another clinical study within the last 3 months
  • Subjects who have legal incapacity or limited legal capacity

Trial locations and contacts

2 sites in 1 country.

China2 sites
  • Beijing Shi Jingshan Hospital

    Beijing

  • Shanghai Institute of Hypertension

    Shanghai

Other trials in China

About this study

Official title: Effects of Bisoprolol and Atenolol on Resting Heart Rate and Sympathetic Nervous System's Activity in Patients With Essential Hypertension

This is a Phase 4, prospective, multi-centric and randomized controlled study to compare the effects of bisoprolol and atenolol on resting heart rate (RHR) and sympathetic nervous system's (SNS) activity in subjects with essential hypertension.

Conditions
Hypertension
Being tested
Bisoprolol, Atenolol
Keywords
Hypertension, Bisoprolol, Atenolol
Medical subject headings
Hypertension

What participants receive

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

  • BisoprololDrug

    Also called Concor®

    Bisoprolol will be administered at a dose of 5 milligram (mg) once daily for 2 weeks. If heart rate is less than or equal to 65 beats per minute (bpm), then the initial dose will be administered for another 2 weeks. If the heart rate remains greater than 65 bpm, then the dose will be further increased to 7.5 mg once daily for 2 weeks. After 2 weeks, if the heart rate is less than or equal to 65 bpm, the increased dose will be administered for another 2 weeks. If the heart rate is still greater than 65 bpm, then the dose will be further increased to 10 mg once daily for 2 weeks. After 2 weeks, if the heart rate is less than or equal to 65 bpm, the increased dose will be administered for another 2 weeks.

  • AtenololDrug

    Atenolol will be administered at a dose of 50 mg once daily for 2 weeks. If heart rate is less than or equal to 65 bpm, then the initial dose will be administered for another 2 weeks. If the heart rate remains greater than 65 bpm, then the dose will be further increased to 75 mg once daily for 2 weeks. After 2 weeks, if the heart rate is less than or equal to 65 bpm, the increased dose will be administered for another 2 weeks. If the heart rate still greater than 65 bpm, then the dose will be further increased to 100 mg once daily for 2 weeks. After 2 weeks, If the heart rate is less than or equal to 65 bpm, the increased dose will be administered for another 2 weeks.

Study groups in NCT01251146
Study groupRoleWhat they receive
BisoprololExperimentalNot described
Receives: Drug: Bisoprolol
AtenololActive comparatorNot described
Receives: Drug: Atenolol

What is being measured

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

  1. Change From Baseline in Baroreflex Sensitivity (BRS) at Attainment of Heart Rate Goal

    Baroreflex sensitivity (BRS) is an important characteristic of baroreflex control and often noninvasively assessed by relating heart rate (HR) fluctuations to blood pressure (BP) fluctuations. Heart rate goal was defined as attainment of heart rate less than or equal to 65 beats per minute (bpm).

    Measured: Baseline and attainment of heart rate goal (Week 2 or Week 4 or Week 6)

  2. Change From Baseline in Baroreflex Sensitivity (BRS) at End of Follow-up

    Baroreflex sensitivity (BRS) is an important characteristic of baroreflex control and often noninvasively assessed by relating heart rate (HR) fluctuations to blood pressure (BP) fluctuations. Heart rate goal was defined as attainment of heart rate less than or equal to 65 bpm.

    Measured: Baseline and end of follow-up (Week 4 or Week 6 or Week 8)

Secondary outcomes (6)
  1. Change From Baseline in Heart Rate Variability (HRV) for Low Frequency Power (LF) and for High Frequency Power (HF) at Attainment of Heart Rate Goal and End of Follow-up

    Heart rate variability (HRV) is used to describe the variations of both instantaneous HR and resting rate (RR) intervals and was evaluated for low frequency power (LF) and for high frequency power (HF). Heart rate goal was defined as attainment of heart rate less than or equal to 65 bpm.

    Measured: Baseline, attainment of heart rate goal (Week 2 or Week 4 or Week 6) and end of follow-up (Week 4 or Week 6 or Week 8)

  2. Change From Baseline in Ratio of Heart Rate Variability (HRV) for Low Frequency Power (LF) to Heart Rate Variability Power (HRV) for High Frequency (HF) (LF/HF) at Attainment of Heart Rate Goal and End of Follow-up

    Heart rate variability (HRV) is used to describe the variations of both instantaneous HR and resting rate (RR) intervals and was evaluated for low frequency power (LF) and for high frequency power (HF). Heart rate goal was defined as attainment of heart rate less than or equal to 65 bpm.

    Measured: Baseline, attainment of heart rate goal (Week 2 or Week 4 or Week 6) and end of follow-up (Week 4 or Week 6 or Week 8)

  3. Number of Participants Attaining Heart Rate Goal at Dosage 1, 2 and 3 of Study Treatment

    Dosage 1, 2 and 3 for bisoprolol group was defined as 5 mg, 7.5 mg and 10 mg once daily and for atenolol group as 50 mg, 75 mg and 100 mg once daily, respectively. Heart rate goal was defined as attainment of heart rate less than or equal to 65 bpm.

    Measured: Baseline up to attainment of heart rate goal (Week 2 or Week 4 or Week 6)

  4. Percentage of Participants Attaining Heart Rate Goal at Week 2, 4 and 6

    Heart rate goal was defined as attainment of heart rate less than or equal to 65 bpm.

    Measured: Attainment of heart rate goal (Week 2 or Week 4 or Week 6)

  5. Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

    AE: any new untoward medical occurrence/worsening of pre-existing medical condition, whether or not related to study drug. SAE: Any AE that resulted in death; was life threatening; resulted in persistent/significant disability/incapacity; resulted in/prolonged an existing in-patient hospitalization; was a congenital anomaly/birth defect; or was a medically important condition

    Measured: Baseline up to end of follow-up (Week 4 or Week 6 or Week 8)

  6. Number of Participants Compliant With Study Treatment

    Participants compliant with study treatment were the participants who have completed the study treatment regimen.

    Measured: Baseline up to end of follow-up (Week 4 or Week 6 or Week 8)

Timeline

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

  1. First posted1 Dec 2010 (estimated)
  2. Study startNov 2010
  3. Primary completionFeb 2012
  4. Study completionFeb 2012

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
177 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01251146
Sponsor's protocol ID
EMR200006-515
Status last verified
Jan 2017
First submitted
30 Nov 2010
Last updated
8 Mar 2017

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Bisoprolol and Atenolol in people with Hypertension, run by Merck KGaA, Darmstadt, Germany at 2 sites in China.

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 6 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 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 30 Nov 2012). 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?

Change From Baseline in Baroreflex Sensitivity (BRS) at Attainment of Heart Rate Goal (time frame: Baseline and attainment of heart rate goal (Week 2 or Week 4 or Week 6)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Mar 2017; AzTrials last refreshed its copy on 6 Nov 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in