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HypertensionNCT00995072

Comparative Effects of Nebivolol and Metoprolol on Female Sexual Function

A study testing nebivolol and metoprolol succinate and metoprolol succinate and nebivolol in people with Hypertension and Female Sexual Dysfunction, run by East Coast Institute for Research 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

Beta-blockers (BB) are an important treatment for high blood pressure and heart disease. However beta-blockers can cause sexual dysfunction (SD) and this common side effect limits successful use of this class of medications. Sexual side effects often result in drug discontinuation, compromising therapy goals. Read more about this study

Who is it for?
Ages 40 years and older, women only
Conditions the study is for
Hypertension, Female Sexual Dysfunction
What is being tested?
nebivolol and metoprolol succinate and metoprolol succinate and nebivolol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
29 participants
Where
1 siteUnited States
Study dates
Oct 2009to Apr 2013
Phase
Interventional
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 40 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Over the age of 40 years
  • Postmenopausal (according to self report of 12 consecutive months of amenorrhea, serum FSH concentrations greater than 40 international units/L, or surgical history consistent with menopause)
  • In a stable monogamous relationship with a male partner for at least 6 months
  • History of hypertension, treated or untreated
  • Requirement for the initiation of an anti-hypertensive agent OR addition of another anti-hypertensive medication (according to the principal investigator and based on clinical judgment) OR patients requiring monotherapy with an anti-hypertensive that wish to participate in the study and are willing to undergo a two week wash-out of current anti-hypertensive therapy
  • Provide written informed consent prior to participation.

Who cannot join

  • Properly measured clinic SBP > 170 mmHg
  • Advanced AV block
  • Severe hepatic disease
  • Heart rate < 55 beats/min (and not currently on beta blocker therapy)
  • Pregnancy or lactation
  • Heart failure with ejection fraction less than 0.40
Show all 14Show fewer
  • History of myocardial infarction
  • History of Raynaud's syndrome
  • Patients with alcoholism or recreational drug use will be excluded due to concerns about the ability to comply with the study requirements.
  • Major psychiatric disorder not well controlled with treatment
  • Spinal cord injury
  • Severe respiratory disease, which in the opinion of the investigator contraindicates BB treatment
  • Poorly controlled diabetes mellitus (≥ 9%)
  • Persistent arrhythmia

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Family Practice

    Jacksonville, Florida, 32204

Other trials in United States

About this study

Beta-blockers (BB) are an important treatment for high blood pressure and heart disease. However beta-blockers can cause sexual dysfunction (SD) and this common side effect limits successful use of this class of medications. Sexual side effects often result in drug discontinuation, compromising therapy goals. The investigators are conducting the study to determine if nebivolol, a newer beta blocker that is selective for receptors in the heart and causes vasodilation in the body causes fewer sexual side effects, or even improves sexual function, compared with metoprolol succinate.

Read the detailed description

This protocol is designed to compare the effects two beta blockers, nebivolol (Bystolic) 5-10 mg daily with metoprolol succinate (Toprol XL) 100-200 mg daily on sexual function in post-menopausal women with high blood pressure. The study is composed of 2 treatment phases. At baseline subjects are randomized to either nebivolol 5 mg once daily or metoprolol succinate 100 mg once daily. After randomization, subjects are treated for 12 weeks with double blind therapy. Following double-blind therapy subjects enter a 2-week washout phase and are subsequently switched to the alternate therapy.

After 4 weeks (visits 3 and 7) of double-blind treatment with either nebivolol 5 mg once daily or metoprolol succinate 100 mg once daily subjects will be evaluated and the need for dosage titration assessed. If blood pressure is not at goal the dosage of study medication will be doubled to nebivolol 10 mg once daily or metoprolol succinate 200 mg once daily. If blood pressure remains uncontrolled after 8 weeks of double blind treatment with study medication open label amlodipine 5 mg will be initiated (visits 4 and 8) at the discretion of the principal investigator. During double blind treatment subjects will be evaluated in clinic every 4 weeks.

The primary efficacy variable is the change from baseline in Changes in Sexual Functioning Questionnaire (CSFQ) and the Female Sexual Function Index (FSFI).

The primary study objective is to determine whether nebivolol causes fewer sexual side effects compared with metoprolol succinate and if nebivolol improves FSF in women. FSF will be assessed with the above questionnaires-FSFI and CSFQ.

Being tested
nebivolol and metoprolol succinate, metoprolol succinate and nebivolol
Keywords
sexual dysfunction, female, hypertension, high blood pressure, beta blockers, metoprolol, nebivolol, Bystolic, Toprol XL
Medical subject headings
Hypertension, Sexual Dysfunction, Physiological

What participants receive

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

  • nebivolol and metoprolol succinateDrug

    Also called nebivolol, Bystolic, metoprolol succinate, Toprol XL

    Subjects randomized to treatment Arm A will receive nebivolol 5 mg once daily for 12 weeks. After 12 weeks, double blind therapy will be discontinued and patients will undergo a wash-out period of study therapy over 2 weeks. Subjects randomized to treatment Arm A will then receive metoprolol succinate 100 mg once daily. Subjects will continue double blind therapy for a total duration of 12 weeks.

  • metoprolol succinate and nebivololDrug

    Also called nebivolol, Bystolic, metoprolol succinate, Toprol XL

    Subjects randomized to treatment Arm B will receive metoprolol succinate 100mg once daily for 12 weeks. After 12 weeks, double blind therapy will be discontinued and patients will undergo a wash-out period of study therapy over 2 weeks. Subjects randomized to treatment Arm B will then receive nebivolol 5 mg once daily. Subjects will continue double blind therapy for a total duration of 12 weeks.

Study groups in NCT00995072
Study groupRoleWhat they receive
Arm AExperimentalNebivolol 5 mg daily for 12 weeks followed by Metoprolol succinate 100 mg daily for 12 weeks. A two week washout (no medication) is completed prior to switching to metoprolol.
Receives: Drug: nebivolol and metoprolol succinate
Arm BExperimentalMetoprolol succinate 100 mg daily for 12 weeks followed by nebivolol 5 mg daily for 12 weeks. A two week washout (no medication) is completed prior to switching to nebivolol.
Receives: Drug: metoprolol succinate and nebivolol

What is being measured

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

  1. Change in Female Sexual Function Index

    This scale is a self-reported instrument used to detect female sexual function. The scale ranges from 2 to 36. The higher score indicates higher sexual function.

    Measured: Baseline, 12 weeks

Secondary outcomes (1)
  1. Change in Sexual Functioning Questionnaire Score

    This scale is a self-reported instrument used to detect sexual functioning. The scale ranges from 14 to 70. The higher scores reflects higher sexual functioning.

    Measured: Baseline, 12 weeks

Timeline

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

  1. First posted14 Oct 2009 (estimated)
  2. Study startOct 2009
  3. Primary completionApr 2013
  4. Study completionApr 2013

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 N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
29 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00995072
Sponsor's protocol ID
SAIRB-09-0011
Status last verified
Mar 2019
First submitted
12 Oct 2009
Last updated
29 Mar 2019
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing nebivolol and metoprolol succinate and metoprolol succinate and nebivolol in people with Hypertension and Female Sexual Dysfunction, run by East Coast Institute for Research 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 6 inclusion and 14 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 29 Mar 2019. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 29 Mar 2019). 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 in Female Sexual Function Index (time frame: Baseline, 12 weeks). 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 29 Mar 2019.

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