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A clinical trial designed to compare how effective ranolazine or drondarone, given either alone or in combination, are in treating sudden, but intermittent, rapid heart beat (atrial fibfillation)

A phase 2, proof of concept, randomised, placebo-controlled, parallel group study to evaluate the effect of ranolazine and dronedarone when given alone and in combination on atrial fibrillation burden in subjects with paroxysmal atrial fibrillation - HARMONY

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2011-001134-42-DE
Enrollment
150
Registered
2011-12-20
Start date
2012-05-22
Completion date
Unknown
Last updated
2013-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Paroxysmal Atrial Fibrillation MedDRA version: 16.0 Level: LLT Classification code 10034039 Term: Paroxysmal atrial fibrillation System Organ Class: 100000004849

Interventions

Trade Name: Ranexa Pharmaceutical Form: Prolonged-release tablet INN or Proposed INN: RANOLAZINE CAS Number: 95635-55-5 Concentration unit: mg milligram(s) Concentration type: equal Concentration numb

Sponsors

Gilead Sciences, Inc
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Males and females aged 18 years and older 2. Have the ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures 3. History of PAF documented within the prior 12 months — Patients with PAF undergoing cardioversion greater than 4 weeks prior to Screening are eligible 4. Implanted (at least 3 months prior to Screening) dual chamber programmable pacemakers with AF detection capabilities 5. AFB = 1% and = 70% between the last clinic evaluation and Screening (minimum of 1 month observation period) and AFB = 2% and = 70% during the 4-week Run-in period 6. Sexually active females of childbearing potential must agree to utilize effective methods of contraception during heterosexual intercourse throughout the treatment period and for 14 days following discontinuation of the study medication Are the trial subjects under 18? no Number of subjects for this age range: 0 F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 40 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 60

Exclusion criteria

Exclusion criteria: 1. Persistent AF or Permanent AF 2. History of atrial flutter or atrial tachycardia without successful ablation 3. Other acutely reversible causes of AF, including but not limited to: hyperthyroidism, pericarditis, myocarditis, or pulmonary embolism 4. New York Heart Association Class III and IV heart failure or NYHA Class II heart failure with a recent decompensation requiring hospitalization or referral to a specialized heart failure clinic within 4 weeks prior to Screening. 5. Recent history of left ventricular ejection fraction 470 msec (Bazett) at Screening ECG if in sinus rhythm (SR). If in AF, evidence of QTc > 470 msec (Bazett) within 4 weeks prior to Screening 12. Prior heart transplant 13. Cardiac ablation within 4 months prior to Screening, or planned ablation during the course of the study 14. Need for concomitant treatment during the trial, with drugs or products that are strong inhibitors of CYP3A, or inducers of CYP3A — Such medications should be discontinued 5-half lives prior to the Run-in period 15. Use of grapefruit juice or Seville orange juice during the study 16. Use of Class I and Class III antiarrhythmic drugs other than amiodarone within 5-half lives prior to the Run-in period 17. Use of amiodarone within 3 months prior to Screening 18. Use of drugs that prolong the QT interval 19. Previous use of ranolazine or dronedarone within 2 months prior to screening 20. Prior use of ranolazine or dronedarone which was discontinued for safety or tolerability 21. Use of digitalis preparations (eg, digoxin) during the study 22. Use of a greater than 1000 mg total daily dose of metformin during the study

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the effect of ranolazine and of low dose dronedarone when given alone and in combination at different dose levels on AFB over 12 weeks of treatment AFB is defined as the total time a subject is in atrial tachycardia/atrial fibrillation (AT/AF) expressed as a percentage of total recording time.;Secondary Objective: To evaluate the effect of ranolazine and of dronedarone when given alone and in combination at different dose levels on: — Atrial fibrillation burden for each visit period — Number of atrial fibrillation episodes, duration of atrial fibrillation episodes, and ventricular rate during atrial fibrillation episodes — Ventricular rate over 12-weeks of treatment and for each visit period — Percentage of ventricular pacing — Percentage of atrial pacing — Incidence of persistent atrial fibrillation — Incidence of electrical cardioversion — Incidence of symptomatic episodes To determine the percentage of subjects who have = 30% (= 50%) reduction from baseline in AFB To determine the percentage of subjects who have total duration of AF episodes = 5.5 hours per day at any point during the treatment period;Primary end point(s): Change from baseline in atrial fibrillation burden (both percent change and absolute change).;Timepoint(s) of evaluation of this end point: 12 weeks

Secondary

MeasureTime frame
Secondary end point(s): 1. Change from baseline in atrial fibrillation burden for each visit period 2. Change from baseline in number of AF episodes, duration of AF episodes, and average ventricular rate for each AF episode 3. Change from baseline in ventricular rate for each visit period 4. Percent ventricular pacing for each visit period 5. Percent atrial pacing 6. Incidence of persistent atrial fibrillation 7. Incidence of electrical cardioversion 8. Incidence of symptomatic episodes;Timepoint(s) of evaluation of this end point: 4, 8 and 12 weeks

Countries

Germany, Israel, Italy, Netherlands, Poland, United Kingdom, United States

Contacts

Public ContactInternational Regulatory Affairs

Gilead Sciences International Ltd

clinical.trials@gilead.com4401223897356

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026