NCT04308031

Brief Summary

Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Previous studies have shown that rate control strategy in AF is non-inferior to rhythm control strategy, in terms of stroke and mortality risk. In addition, rate control strategy is associated with lower risk of hospitalization and non-cardiovascular mortality. Therefore, rate control is an essential strategy to improve quality of life, decrease morbidity and prevent tachycardia-induced cardiomyopathy in AF patients. The recommended rate control agents include beta-blocker, nondihydropyridine calcium-channel blocker (CCB), digoxin and amiodarone. However, in heart failure with reduced ejection fraction patient, the medication of rate control were beta-blocker than digoxin. But several clinical observation study show excess mortality in AF patients. Ivabradine, a If inhibitor, it is well-established that a pacemaker current, If current, is functionally expressed in the sinus node . Previous studies have shown that Ivabradine, If inhibitor, significantly reduces sinus rate and improves prognosis in patients with systolic heart failure. Interestingly, several investigators found that hyperpolarization- activated cyclic nucleotidylated channel 4 current (HCN4), the main isoform of the channel responsible for If current, is also functionally expressed in the Atrioventricular node(AV node). Recent data have shown that inhibition of If current slows AV node conduction in animals and humans. Thus, we want to compare the effect of Ivabradine on ventricular rate with digoxin in this study.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P25-P50 for phase_3 atrial-fibrillation

Timeline
Completed

Started Aug 2018

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 26, 2018

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

May 9, 2019

Completed
10 months until next milestone

First Posted

Study publicly available on registry

March 13, 2020

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
Last Updated

March 13, 2020

Status Verified

March 1, 2020

Enrollment Period

2.4 years

First QC Date

May 9, 2019

Last Update Submit

March 11, 2020

Conditions

Outcome Measures

Primary Outcomes (4)

  • Heart rate change

    To compare Heart Rate change monitored from 24 hr ECG. Test will be performed at Baseline (screening phase, 4 weeks time between screening/Informed consent and Randomization visit) and treatment completion (Visit 5/Week 16). Total treatment phase is 16 weeks.

    24 hr ECG test will be performed at Screening phase and End of Treatment visit(Visit5/Week 16).

  • 6 minute walk test change

    To compare 6 minute walking test walking distance change between Randomization visit(Visit 1/Week 0) and treatment completion(Visit 5/Week 16). Total Treatment phase is 16 weeks.

    Test will be performed at Randomization visit (V1/Week0) and treatment completion (Visit 5/Week 16).

  • N-terminal pro-brain natriuretic peptide(NT-Pro BNP) change

    To compare NT-Pro BNP change from blood sample collected at Baseline (screening phase, 4 weeks time between screening/informed consent and Randomization visit) and treatment completion (Visit 5/Week 16). Total treatment phase is 16 weeks.

    Blood sample will be collected at Screening phase and End of Treatment visit(Visit5/Week 16).

  • 1-10 Borg Rating of Perceived Exertion Scale change

    To compare 1-10 Borg Rating of Perceived Exertion Scale change between Randomization visit (Visit1/Week0) and treatment completion (Visit 5/Week 16). Total Treatment phase is 16 weeks. The number 1-10 Borg Rating of Perceived Exertion Scale will be obtained pre and post 6 minutes walk test. The value of 1-10 Borg Rating of Perceived Exertion Scale pre 6 minutes walking test will be compared between Randomization visit (Visit1/Week0) and treatment completion (Visit 5/Week 16), and the same type of comparison will be performed for 1-10 Borg Rating of Perceived Exertion Scale values post 6 minute walk test. Rating score is as below: 0=Rest, 1=really easy, 2=easy, 3=moderate, 4=sort of hard, 5=hard, 6= between 5 and 7, 7=really hard, 8=between 7 and 9, 9=really really hard, 10=Maximal: just like my hardest race. Decrease in score value compared between Randomization visit (Visit1/Week0) and treatment completion (Visit 5/Week 16) represents better outcome.

    Borg's score will be tested at Randomization visit (V1/Week0) and treatment completion (Visit 5/Week 16).

Study Arms (2)

Ivabradine

EXPERIMENTAL

Subject will be randomly assigned to either Ivabradine or Digoxin group. Ivabradine starting dose is 2.5 mg twice daily(BID). ECG will be performed at each visit during the treatment phase and dose will be adjusted based on the heart rate result from the ECG. Total treatment phase is 16 weeks ( 4 months).

Drug: Ivabradine 5 mg [Corlanor]

Digoxin

ACTIVE COMPARATOR

Subject will be randomly assigned to either Ivabradine or Digoxin group. Digoxin starting dose is 0.125mg once daily(QD) in estimated Glomerular filtration rate(eGFR)\>60, 0.125mg every other day (QOD) in estimated Glomerular filtration rate(eGFR)\<60. Dose adjustment will be based on heart rate result from ECG performed at each treatment visit and Digoxin level from blood sample collected from each visit during treatment phase. Total treatment phase is 16 weeks ( 4 months).

Drug: Digoxin 0.25 mg

Interventions

Starting dose: Ivabradine 2.5mg twice daily (BID) Max Dose: Ivabradine 7.5 mg twice daily (BID)

Ivabradine

Starting dose: 0.125mg once daily (QD) in estimated Glomerular filtration rate(eGFR)\>60, 0.125mg once every other day (QOD) in estimated Glomerular filtration rate(eGFR)\<60 Max dose: 0.25 once daily (QD)

Digoxin

Eligibility Criteria

Age20 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The patient with persistent or permanent atrial fibrillation(24hr ECG) with HFrEF and HFmrEF.
  • After maximal tolerance dose beta-blocker(Bisoprolol 20mg/day,Carvedilol 50mg/day) or intolerant to beta-blocker the resting heart rate from ECG is still faster than 100 or resting heart rate from ECG is greater than 80 but still with symptoms of short of breath and palpitation.
  • Stable heart rhythm medication.(no change of medication in recently one week)
  • Age 20 to 90 years old.
  • The subject must be an adult who can read himself/herself and walk independently.

You may not qualify if:

  • Used medication with interaction with digoxin : Clarithromycin, Erythromycin, Azithromycin, ritonavir, lopinavir/ritonavir, Doxycycline, Minocycline, tetracycline。
  • Used medication with interaction with ivabradine: voriconazole, posaconazole, fluconazole, Ombitasvir, Dasabuvir, Carbamazepine, Enzalutamide, Fosphenytoin, Mitotane, Phenobarbital, Phenytoin, Rifampicin
  • Cardiogenic shock.
  • History of symptomatic bradycardia.
  • Renal insufficiency:eGFR\<30 ml/min/1.73m2
  • Pregnancy
  • Heart failure due to congenital heart
  • Severe hypotension(\<90/50mmHg)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taipei Medical University Hospital

Taipei, Taiwan

Location

MeSH Terms

Conditions

Atrial FibrillationHeart Failure

Interventions

IvabradineDigoxin

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

BenzazepinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsDigitalis GlycosidesCardenolidesCardiac GlycosidesCardanolidesSteroidsFused-Ring CompoundsPolycyclic CompoundsGlycosidesCarbohydrates

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Attending physician

Study Record Dates

First Submitted

May 9, 2019

First Posted

March 13, 2020

Study Start

August 26, 2018

Primary Completion

December 31, 2020

Study Completion

December 31, 2020

Last Updated

March 13, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations