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Heart FailurePhase 4MEXICHONCT00885651

Ability of Metoprolol to Alter the Exercise Induced Elevation of Catecholamines

A Phase 4 study testing Metoprolole (Selo-Zok ®) in people with Heart Failure, run by Copenhagen University Hospital, Rigshospitalet.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Heart failure is a frequent disease in Denmark, and it is associated with very high mortality. Around 60,000 people in Denmark have heart failure, and there is about 11,000 hospitalizations every year due to this disease. From the time of diagnosis, patients survive an average of 4-5 years. Read more about this study

Who is it for?
Ages 18 to 30 years, men onlyHealthy volunteers can take part
Conditions the study is for
Heart Failure
What is being tested?
Metoprolole (Selo-Zok ®)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
No sites listed yet
Study dates
Sep 2008to Dec 2009
Phase
Phase 4
Are there results?
None posted in the registry

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 to 30 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Kaukaser
  • Healthy men
  • 18 years < age < 30 years
  • Non-smoker
  • 18 < BMI < 25
  • No chronic diseases
  • Motor-disability that disables completement of cardio-pulmonary exercise-test.

Who cannot join

  • Alcohol abuse or any other abuse
  • Intake of any narcotic drugs (example: cannabinoids, narcotics, stimulants of central nervous system, hypnotics, hallucinogenes)
  • Any of following medication:
  • astmamedication
  • heartmedication
  • antihistamines
Show all 17Show fewer
  • antipsycotics
  • NSAIDs
  • rifampicine
  • chinidine
  • glucocorticoids
  • Abnormal ECG, particularly 2. or 3. degree AV-block, sinusbradycardia, sick sinusnode-syndrome, sign of heart failure or ischemia.
  • Allergy or intolerance of metoprolole
  • Lactoseallergy
  • 110 mmHg < Systolic blood pressure < 140 mmHg
  • 60 mmHg < Diastolic blood pressure < 90 mmHg
  • Bloodsucker > 11,1 mmol/L, or fasting, venous bloodsucker >= 7,0 (measured if: 7,8 < BS < 11,1)

About this study

Official title: A Randomised, Double Blinded, Crossover Study of the Influence of Metoprolol on Exercise Induced Elevation of Catecholamines in Healthy Subjects.

Heart failure is a frequent disease in Denmark, and it is associated with very high mortality. Around 60,000 people in Denmark have heart failure, and there is about 11,000 hospitalizations every year due to this disease. From the time of diagnosis, patients survive an average of 4-5 years.

A critical illness mechanism in heart failure is that these patients have high blood levels of catecholamines; epinephrine and norepinephrine, which is stress hormones from the sympathetic nervous system. Standard treatment of heart failure is with the two medical preparations betablockers and ACE-inhibitors.

Read more

It is not known what effect betablocker-treatment have on blood concentration of epinephrine and norepinephrine.

It is the purpose of this study, to investigate the effect of Selo-Zok ® (metoprolol) on the blood concentration of epinephrine and norepinephrine. This is done by creating a stress condition for the body, in this case with the bicycle test, while doing blood samples to determine the concentration of catecholamines. This will be done by 1-week treatment of tablet Selo-Zok ® followed by 1-week treatment of placebo (a substance with no medical effect). Blood samples will be taken to determine small changes in inheritance material (DNA) in the form of point mutations also called single nucleotide polymorphisms, since these changes can affect how we respond to metoprolol treatment.

Conditions
Heart Failure
Being tested
Metoprolole (Selo-Zok ®), Placebo
Keywords
SNP, catecholamines, metoprolole, healthy subjects, physiological stress
Medical subject headings
Heart Failure

What participants receive

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

  • Metoprolole (Selo-Zok ®)Drug

    Tablets, 200 mg, once a day, 10 days

  • PlaceboDrug

Study groups in NCT00885651
Study groupRoleWhat they receive
1ExperimentalMetoprolol for 10 days followed by placebo for 7 days.
Receives: Drug: Metoprolole (Selo-Zok ®); Drug: Placebo
2Placebo comparatorPlacebo for 7 days followed by Metoprolol for 10 days
Receives: Drug: Metoprolole (Selo-Zok ®); Drug: Placebo

What is being measured

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

  1. Changes in stress-triggered response of catecholamines.

    Measured: 2 weeks and 3 days

Secondary outcomes (2)
  1. Change in stress-triggered blood pressure response.

    Measured: 2 weeks and 3 days

  2. Change in stress-triggered pulse response.

    Measured: 2 weeks and 3 days

Timeline

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

  1. First posted22 Apr 2009 (estimated)
  2. Study startSep 2008
  3. Primary completionAug 2009 (estimated)
  4. Study completionDec 2009 (estimated)

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
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00885651
Sponsor's protocol ID
13-5-23-9-3-8-15
Other IDs
EudraCTnr. 2008-001908-23
Acronym
MEXICHO
Status last verified
Apr 2009
First submitted
20 Apr 2009
Last updated
22 Apr 2009
Results posted
No
Data monitoring committee
Yes

Publications

  • Petersen M, Andersen JT, Jimenez-Solem E, Broedbaek K, Hjelvang BR, Henriksen T, Frandsen E, Forman JL, Torp-Pedersen C, Kober L, Poulsen HE. Effect of the Arg389Gly beta(1)-adrenoceptor polymorphism on plasma renin activity and heart rate, and the genotype-dependent response to metoprolol treatment. Clin Exp Pharmacol Physiol. 2012 Sep;39(9):779-85. doi: 10.1111/j.1440-1681.2012.05736.x.

    PubMed 22703382

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Metoprolole (Selo-Zok ®) in people with Heart Failure, run by Copenhagen University Hospital, Rigshospitalet.

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 7 inclusion and 17 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: status not confirmed, as of the sponsor's last update on 22 Apr 2009. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

Results are not available in the source record.

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?

Changes in stress-triggered response of catecholamines. (time frame: 2 weeks and 3 days). 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 NCT00885651, 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 22 Apr 2009.

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