Atrial FibrillationNCT01636518
Hybrid AF -- A Prospective Registry
An observational study of Atrial Fibrillation, run by Dhanunjaya Lakkireddy, MD, FACC.
Trial summary
Atrial Fibrillation (AF) is a form of rapid irregular heart rhythm that starts in the upper chambers of the heart (called atria) and is often associated with many health problems. It can cause stroke, palpitations and heart failure. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Atrial Fibrillation
- Type of treatment
- Surgery or procedure
- How many people
- 0 participants
- Where
- No sites listed yet
- Study dates
- Jul 2012to Jan 2015
- Phase
- Observational
- 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 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients undergoing standard of care procedures to treat Atrial Fibrillation at the University of Kansas Hospital
Who may be able to join
- Documented effectiveness failure of at least one Vaughan-Williams Class III AAD
- Persistent AF as defined by the HRS/EHRA/ECAS Expert Consensus Statement on Catheter and Surgical Ablation of Atrial Fibrillation
- Absence of significant structural heart disease as demonstrated by a transthoracic echocardiogram (TTE) of all four chambers of the heart, computed tomography (CT) scan or magnetic resonance imaging (MRI) scan within 6 months prior to enrollment
- Absence of left atrial thrombus as documented by an imaging study (e.g., TTE, transesophageal echocardiogram (TEE), thoracic CT scan, MRI, or left atrial angiography) within 30 days prior to procedure
Who cannot join
- History of longstanding persistent AF for more than 3 years
- Documented left atrial size of 60 mm or more
- Documented left ventricular ejection fraction (LVEF) less than 40%
- History of cerebrovascular disease, including stroke or transient ischemic attack (TIA) within 6 months prior to enrollment
- Significant underlying structural heart disease requiring surgical or procedural intervention within the last six months of initial procedure
- Known contraindication to anticoagulant therapy, or inability to comply with anticoagulant therapy
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- Other clinical conditions precluding inclusion (e.g., organ disease, disturbances of hemostasis, etc.)
- Pregnancy, planned pregnancy (females of childbearing potential must have a negative pregnancy test prior to enrollment and agree not to become pregnant during the trial) or breastfeeding;
- Concomitant procedure planned
About this study
Official title: Hybrid Procedure for the Treatment of Long Standing Persistent Atrial Fibrillation - A Prospective Registry
Atrial Fibrillation (AF) is a form of rapid irregular heart rhythm that starts in the upper chambers of the heart (called atria) and is often associated with many health problems. It can cause stroke, palpitations and heart failure. The management of long standing (chronic) AF may require additional medications and blood thinners, potentially for life. It may also require procedures where the heart is shocked with an electrical current to restore normal rhythm. Some patients require a procedure called radiofrequency ablation to address the arrhythmia.
The purpose of this registry is to collect information on patients undergoing this combination of procedures into a database, and to then use this information for scientific study to improve the treatment of atrial fibrillation.
- Conditions
- Atrial Fibrillation
- Being tested
- Standard of Care
- Medical subject headings
- Atrial Fibrillation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standard of CareProcedure or surgery
Standard of care procedure as determined by treating physician for Atrial Fibrillation
| Study group | Role | What they receive |
|---|---|---|
| Atrial Fibrillation | Patients with Atrial Fibrillation that undergo standard of care procedure at the University of Kansas Hospital Receives: Procedure: Standard of Care |
What is being measured
The primary outcome is the main question the study is designed to answer.
Outcomes of patients with persistent Atrial Fibrillation who undergo the standard of care hybrid procedure
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Jul 2012 (estimated)
- Study startJul 2012
- Primary completionJan 2015
- Study completionJan 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Atrial FibrillationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Dhanunjaya Lakkireddy, MD, FACC
- Sponsor type
- University, hospital or other
- Collaborators
- Estech
- Responsible party
- Sponsor-investigator, Dhanunjaya Lakkireddy, MD, FACC, University of Kansas Medical Center
- Investigators
- Dhanunjaya Lakkireddy, MD, FACC, Principal investigator, University of Kansas Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01636518
- Sponsor's protocol ID
- 13117
- Status last verified
- Apr 2015
- First submitted
- 5 Jul 2012
- Last updated
- 22 Apr 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 22 Apr 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Hybrid Procedure for the Treatment of Long Standing Persistent Atrial Fibrillation - A Prospective Registry
- ClinicalTrials.gov ID
- NCT01636518
- Acronym / sponsor ID
- 13117
- Conditions
- Atrial Fibrillation
- Study type
- Observational
- Recruitment status
- Withdrawn
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Dhanunjaya Lakkireddy, MD, FACCUniversity, hospital or other
- Collaborators
- Estech
- Study start
- Jul 2012
- Primary completion
- Jan 2015 (actual)
- Study completion
- Jan 2015 (actual)
- First posted
- 10 Jul 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Atrial Fibrillation (AF) is a form of rapid irregular heart rhythm that starts in the upper chambers of the heart (called atria) and is often associated with many health problems. It can cause stroke, palpitations and heart failure. The management of long standing (chronic) AF may require additional medications and blood thinners, potentially for life. It may also require procedures where the heart is shocked with an electrical current to restore normal rhythm. Some patients require a procedure called radiofrequency ablation to address the arrhythmia.
The purpose of this registry is to collect information on patients undergoing this combination of procedures into a database, and to then use this information for scientific study to improve the treatment of atrial fibrillation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Atrial Fibrillation | – | Procedure: Standard of CarePatients with Atrial Fibrillation that undergo standard of care procedure at the University of Kansas Hospital |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients undergoing standard of care procedures to treat Atrial Fibrillation at the University of Kansas Hospital
Key inclusion criteria (4 listed)
- Documented effectiveness failure of at least one Vaughan-Williams Class III AAD
- Persistent AF as defined by the HRS/EHRA/ECAS Expert Consensus Statement on Catheter and Surgical Ablation of Atrial Fibrillation
- Absence of significant structural heart disease as demonstrated by a transthoracic echocardiogram (TTE) of all four chambers of the heart, computed tomography (CT) scan or magnetic resonance imaging (MRI) scan within 6 months prior to enrollment
- Absence of left atrial thrombus as documented by an imaging study (e.g., TTE, transesophageal echocardiogram (TEE), thoracic CT scan, MRI, or left atrial angiography) within 30 days prior to procedure
Key exclusion criteria (9 listed)
- History of longstanding persistent AF for more than 3 years
- Documented left atrial size of 60 mm or more
- Documented left ventricular ejection fraction (LVEF) less than 40%
- History of cerebrovascular disease, including stroke or transient ischemic attack (TIA) within 6 months prior to enrollment
- Significant underlying structural heart disease requiring surgical or procedural intervention within the last six months of initial procedure
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Standard of CareStandard of care procedure as determined by treating physician for Atrial Fibrillation | Procedure or surgery | Atrial Fibrillation |
Primary outcome
Outcomes of patients with persistent Atrial Fibrillation who undergo the standard of care hybrid procedure
Time frame: 2 years
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Apr 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Dhanunjaya Lakkireddy, MD, FACC principal investigator
University of Kansas Medical Center
Questions about this trial
What is this clinical trial studying?
An observational study of Atrial Fibrillation, run by Dhanunjaya Lakkireddy, MD, FACC.
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 9 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: withdrawn, as of the sponsor's last update on 22 Apr 2015. 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. 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?
The study was withdrawn before enrolling participants, so there are no results.
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?
Outcomes of patients with persistent Atrial Fibrillation who undergo the standard of care hybrid procedure (time frame: 2 years). 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 22 Apr 2015.