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Atrial FibrillationPhase 3ACT VNCT00989001

A Phase 3b Study of Vernakalant Injection in Patients With Recent Onset Symptomatic Atrial Fibrillation (AF)(MK-6621-045)

A Phase 3 study testing Vernakalant in people with Atrial Fibrillation, run by Advanz Pharma.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to evaluate the safety and efficacy of vernakalant injection in subjects with recent onset (AF > 3 hours to <= 7 days), symptomatic atrial fibrillation and no evidence or history of congestive heart failure. Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Atrial Fibrillation
What is being tested?
Vernakalant
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
217 participants
Where
No sites listed yet
Study dates
Oct 2009to Nov 2010
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 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Females must be not pregnant or nursing and if pre-menopausal, must be using an effective form of birth control from time of screening until 30 days post study treatment
  • Subject must have recent onset (> 3 hours to <= 7 days) symptomatic AF to be best managed by acute conversion to SR
  • Subject must have adequate anticoagulant therapy
  • Subject must have systolic blood pressure (SBP) above 90 mmHg and less than 160 mmHg and diastolic blood pressure (DBP) less than 95 mmHg at screening and baseline
  • Subject must have a body weight between 45 and 136 kg, inclusive (99 and 300 lbs)

Who cannot join

  • Subject has a history of heart failure or documentation of left ventricular dysfunction
  • Subject has known or suspected prolonged QT or uncorrected QT interval of > 0.440 sec
  • Subject has symptomatic bradycardia or ventricular rate less than 50 bpm at Screening, unless controlled by a pacemaker
  • Subject has bradycardia (heart rate less than 50 bpm) or hypotension (SBP less that 90 mmHg) after receiving a loading, bolus dose, or sustained infusion of any rate control medication during Screening
  • Subject has a QRS interval > 0.14 sec., unless subject has a pacemaker
  • Subject had a myocardial infarction (MI), acute coronary syndrome, cardiac surgery (including percutaneous transluminal coronary angioplasty (PTCA) or stent placement), within 30 days prior to enrollment or subject has evidence of new ischemic changes on Screening 12-lead ECG
Show all 14Show fewer
  • Subject has troponin I or T levels beyond the upper limit of normal for the local lab
  • Subject has significant valvular stenosis, hypertrophic obstructive cardiomyopathy, restrictive cardiomyopathy or constrictive pericarditis
  • Subject has failed electrical cardioversion for AF at anytime
  • Subject has failed pharmacologic conversion with an intravenous Class I or Class III antiarrhythmic drug for this episode of AF
  • Subject has any known reversible causes of AF such as alcohol intoxication, pulmonary embolism, hyperthyroidism, acute pericarditis or hypoxemia
  • Subject has uncorrected electrolyte imbalance
  • Subject has clinical evidence of digoxin toxicity
  • Subject has a history of clinically significant illness (e.g. neurological, gastrointestinal, renal, hepatic, pulmonary, metabolic, endocrine, hematological, or psychiatric), medical condition or laboratory abnormality within 4 weeks prior to Screening

About this study

Official title: A Phase 3b Randomized, Double-Blind, Placebo Controlled, Parallel Group Study to Evaluate the Safety and Efficacy of Vernakalant Hydrochloride Injection in Patients With Recent Onset Symptomatic Atrial Fibrillation

The purpose of this study is to evaluate the safety and efficacy of vernakalant injection in subjects with recent onset (AF > 3 hours to <= 7 days), symptomatic atrial fibrillation and no evidence or history of congestive heart failure.

Read the detailed description

Participants received a 10-minute intravenous (IV) infusion of vernakalant (3 mg/kg) or an equivalent amount of normal saline (placebo), followed by a 15-minute observation period. If the participant was still in atrial fibrillation or atrial flutter, a second 10-minute IV infusion of vernakalant (2 mg/kg) or an equivalent amount of placebo was administered unless the participant experienced any dose-stopping criteria after the start of the first infusion. If a participant converted to sinus rhythm during the first or second infusion, that infusion was completed.

Being tested
Vernakalant, Placebo
Keywords
Atrial Fibrillation, RSD1235, Vernakalant, conversion
Medical subject headings
Atrial Fibrillation

What participants receive

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

  • VernakalantDrug

    Also called RSD1235

    Maximum volume of 100 mL as per the dosing schedule, administered intravenously (IV) over 10 minutes

  • PlaceboDrug

    Injection

Study groups in NCT00989001
Study groupRoleWhat they receive
VernakalantExperimentalMaximum volume of 100 mL as per the dosing schedule, administered intravenously (IV) over 10 minutes
Receives: Drug: Vernakalant
PlaceboPlacebo comparatorPlacebo (saline) administered IV at same volume and rate as per dosing schedule for vernakalant
Receives: Drug: Placebo

What is being measured

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

  1. Number of Participants who Experience Hypotension, Ventricular Arrhythmias and/or Death

    Hypotension defined as: systolic blood pressure (SBP) <90 mmHg and treated with pressors; SBP <90 mmHg and treated with albumin, dextran or hydroxyethyl starch; or SBP <90 mmHg and seizures. Ventricular arrhythmias defined as: Sustained ventricular tachycardia with a heart rate of >120 beats per minute. Sustained tachycardia defined as lasting >30 seconds; Torsade de Pointes with a duration of >10 seconds; Ventricular fibrillation of any duration.

    Measured: Occurring within the first two hours after start of study treatment

  2. Number of Participant with Successful Conversion to Sinus rhythm (SR)

    Successful conversion defined as return to sinus rhythm for at least 1 minute documented by Holter electrocardiogram (ECG) or by two consecutive 12-lead ECGs recorded > 1 minute apart within 90 minutes of first exposure to study treatment

    Measured: Occurring within 90 minutes of first exposure to study treatment

Secondary outcomes (2)
  1. Time from First Exposure to Study Treatment to Conversion of AF to SR

    Measured: Occurring within 90 minutes after study treatment

  2. Number of Participants who Report No Symptoms

    Participant was considered a success (no symptoms) if they did not have any of the following symptoms at 90 minutes: palpitations, dyspnea, dizziness, chest pain or fatigue

    Measured: Occurring 90 minutes after first exposure to study treatment

Timeline

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

  1. First posted2 Oct 2009 (estimated)
  2. Study startOct 2009
  3. Primary completionNov 2010
  4. Study completionNov 2010

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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
217 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00989001
Sponsor's protocol ID
6621-045
Other IDs
6517-CL-0020, MK-6621-045
Acronym
ACT V
Status last verified
Feb 2014
First submitted
1 Oct 2009
Last updated
10 Mar 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Beatch GN, Mangal B. Safety and efficacy of vernakalant for the conversion of atrial fibrillation to sinus rhythm; a phase 3b randomized controlled trial. BMC Cardiovasc Disord. 2016 May 28;16:113. doi: 10.1186/s12872-016-0289-0.

    PubMed 27233239

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Vernakalant in people with Atrial Fibrillation, run by Advanz Pharma.

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 5 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: stopped early, as of the sponsor's last update on 10 Mar 2014. 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 was stopped early. 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?

Number of Participants who Experience Hypotension, Ventricular Arrhythmias and/or Death (time frame: Occurring within the first two hours after start of study treatment). 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?

On the ClinicalTrials.gov record for NCT00989001, 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 10 Mar 2014.

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