AzTrials
AzTrials

Heart DiseasePhase 3NCT00098137

Trial to Investigate the Efficacy of Olmesartan in Paroxysmal Atrial Fibrillation

A Phase 3 study testing Olmesartan in people with Heart Disease and Arrhythmia, run by Atrial Fibrillation Network.

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

Hypothesis: Blocking the angiotensin (AT) II type 1 receptor (Olmesartan) reduces the incidence of episodes of atrial fibrillation in patients with paroxysmal atrial fibrillation during 12 months by more than 25% compared to standard medication without angiotensin II type 1 receptor. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Disease, Arrhythmia, Atrial Fibrillation
What is being tested?
Olmesartan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
422 participants
Where
No sites listed yet
Study dates
Jan 2005to May 2009
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Documented paroxysmal atrial fibrillation: ECG documentation of atrial fibrillation at least in one ECG recorded during the last 2 months prior to randomization plus additional ECG recording of sinus rhythm at least 12 hours after the above mentioned ECG documentation.
  • Age ≥ 18
  • Patient informed orally and in writing
  • Written informed consent of the patient

Who cannot join

  • Strong clinical evidence for therapy with AT II/ACE inhibitors
  • AT II/ACE inhibitor therapy within the last month
  • Therapy with antiarrhythmic agents of class I or class III within the last month, therapy with amiodarone within the last 3 months
  • Direct current (DC) cardioversion within the last 3 months
  • Symptomatic bradycardia
  • Implanted pacemaker or implanted cardioverter/defibrillator with any antitachycardiac algorithm in use
Show all 24Show fewer
  • Cardiac surgery or cardiac catheter ablation within the last 3 months
  • Typical angina pectoris symptoms at rest or during exercise
  • Known coronary artery disease with indication for intervention
  • Valvular disease > II degree
  • Left ventricular ejection fraction < 40%
  • Diastolic blood pressure > 110mm Hg at rest
  • Symptomatic arterial hypotension
  • Known renal artery stenosis
  • Serum creatinine > 1.8 mval/l
  • Relevant hepatic or pulmonary disorders
  • Hyperthyroidism manifested clinically and in laboratory
  • Known drug intolerance for AT II inhibitors
  • Females who are pregnant or breast feeding
  • Females of childbearing potential who are not using a scientifically accepted method of contraception
  • Participation in a clinical trial within the last 30 days
  • Drug addiction or chronic alcohol abuse
  • Legal incapacity, or other circumstances which would prevent the patient from understanding the aim, nature or extent of the clinical study
  • Evidence of an uncooperative attitude

About this study

Official title: Angiotensin II-Antagonist in Paroxysmal Atrial Fibrillation Trial (ANTIPAF Trial)

Hypothesis:

Blocking the angiotensin (AT) II type 1 receptor (Olmesartan) reduces the incidence of episodes of atrial fibrillation in patients with paroxysmal atrial fibrillation during 12 months by more than 25% compared to standard medication without angiotensin II type 1 receptor.

A total of 422 subjects will be included in the two study groups. The treatment arm will receive 40mg Olmesartan per day, the remaining patients will receive placebo. Follow-up is 12 months. Daily Tele-ECG recordings will determine the cardiac rhythm and asymptomatic episodes of atrial fibrillation (AF) every day. Concomitant therapy with AV-nodal blocking drugs are allowed during the study. In case of severe AF-induced symptoms, an antiarrhythmic "recovery medication" (amiodarone) is allowed during follow-up.

Read the detailed description

Double-blind, central randomization, two treatment groups, stratified by beta-blocker use. 211 patients in each treatment arm.

Being tested
Olmesartan
Keywords
atrial fibrillation, angiotensin II, angiotensin receptor antagonist, drug, controlled clinical trial
Medical subject headings
Heart Diseases, Arrhythmias, Cardiac, Atrial Fibrillation

What participants receive

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

  • OlmesartanDrug

Study groups in NCT00098137
Study groupRoleWhat they receive
OlmesartanExperimentalOlmesartan tablet, 1 in the morning
Receives: Drug: Olmesartan
PlaceboPlacebo comparatorPlacebo tablets, 1 in the morning
Receives: Drug: Olmesartan

What is being measured

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

  1. Percentage of days with documented episodes of paroxysmal atrial fibrillation (number of days with paroxysmal atrial fibrillation/number of days with at least one readable Tele-ECG recording)

    Measured: 12 months follow-up

Secondary outcomes (8)
  1. Time to first occurrence of a documented relapse of atrial fibrillation

    Measured: 12 months follow up

  2. Time to first occurrence of a symptomatic documented episode of AF

    Measured: 12 months follow up

  3. Time to persistent atrial fibrillation

    Measured: 12 months follow up

  4. Time to prescription of the recovery-medication

    Measured: 12 months follow up

  5. Number of hospitalizations for cardiovascular reasons (-> Endpoint review)

    Measured: 12 months follow up

  6. Number of intermediate medical visits for cardiovascular reasons (-> Endpoint review) without hospitalization

    Measured: 12 months follow up

  7. Number of cerebrovascular events

    Measured: 12 months follow up

  8. Quality of life

    Measured: 12 months follow up

Timeline

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

  1. First posted6 Dec 2004 (estimated)
  2. Study startJan 2005
  3. Primary completionMay 2009
  4. Study completionMay 2009

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
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
422 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00098137
Sponsor's protocol ID
AFNET-B10
Other IDs
Grant No 01GI0204
Status last verified
Sep 2012
First submitted
3 Dec 2004
Last updated
11 Sep 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • von Eisenhart Rothe AF, Goette A, Kirchhof P, Breithardt G, Limbourg T, Calvert M, Baumert J, Ladwig KH. Depression in paroxysmal and persistent atrial fibrillation patients: a cross-sectional comparison of patients enroled in two large clinical trials. Europace. 2014 Jun;16(6):812-9. doi: 10.1093/europace/eut361. Epub 2013 Dec 18.

    PubMed 24351885
  • von Eisenhart Rothe A, Bielitzer M, Meinertz T, Limbourg T, Ladwig KH, Goette A. Predictors of discordance between physicians' and patients' appraisals of health-related quality of life in atrial fibrillation patients: findings from the Angiotensin II Antagonist in Paroxysmal Atrial Fibrillation Trial. Am Heart J. 2013 Sep;166(3):589-96. doi: 10.1016/j.ahj.2013.05.020. Epub 2013 Jul 10.

    PubMed 24016511
  • Goette A, Schon N, Kirchhof P, Breithardt G, Fetsch T, Hausler KG, Klein HU, Steinbeck G, Wegscheider K, Meinertz T. Angiotensin II-antagonist in paroxysmal atrial fibrillation (ANTIPAF) trial. Circ Arrhythm Electrophysiol. 2012 Feb;5(1):43-51. doi: 10.1161/CIRCEP.111.965178. Epub 2011 Dec 7.

    PubMed 22157519

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Olmesartan in people with Heart Disease and Arrhythmia, run by Atrial Fibrillation Network.

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 24 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 11 Sep 2012. 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 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Percentage of days with documented episodes of paroxysmal atrial fibrillation (number of days with paroxysmal atrial fibrillation/number of days with at least one readable Tele-ECG recording) (time frame: 12 months follow-up). 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 NCT00098137, which also lists 3 linked publications.

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 11 Sep 2012.

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