NCT02489786

Brief Summary

Digoxin is the primary cardiac glycoside in clinical use. Because of the narrow therapeutic index and risk of toxicity, therapeutic drug monitoring is highly recommended. In Egypt, most cardiologists give digoxin holiday for both atrial fibrillation and heart failure, it is not clear if the interrupted digoxin regimens are effective since serum digoxin concentrations might fall below the therapeutic range. Objective: To evaluate and compare the digoxin serum concentration and patient's quality of life in the continuous versus interrupted digoxin dosing regimens.

Trial Health

100
On Track

Trial Health Score

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

Enrollment
71

participants targeted

Target at below P25 for phase_4 atrial-fibrillation

Timeline
Completed

Started Oct 2012

Shorter than P25 for phase_4 atrial-fibrillation

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2012

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2014

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

July 1, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 3, 2015

Completed
Last Updated

July 7, 2015

Status Verified

July 1, 2015

Enrollment Period

2 years

First QC Date

July 1, 2015

Last Update Submit

July 3, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • measuring digoxin trough steady state plasma concentrations for the interrupted and continuous treatment regimens

    1 month

Secondary Outcomes (2)

  • evaluating patients quality of life using quality of life questionnaire for atrial fibrillation patients

    1 month

  • evaluating signs and symptoms of digoxin side effects and toxicity by using specific structured questions

    1 month

Study Arms (4)

Regimen 1

ACTIVE COMPARATOR

patient takes 0.25mg of digoxin daily except friday

Drug: patients take 0.25 mg of digoxin daily except friday

Regimen 2

ACTIVE COMPARATOR

patient takes 0.25mg of digoxin daily except Thursday and Friday

Drug: patients take 0.25 mg of digoxin daily except thursday and friday

Regimen 3

ACTIVE COMPARATOR

patient takes 0.125mg of digoxin daily

Drug: patients take 0.125 mg of digoxin daily

Regimen 4

ACTIVE COMPARATOR

digoxin dose is calculated using Jusko-Koup method and given daily

Drug: digoxin dose is calculated using Jusko-Koup method and given daily

Interventions

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with atrial fibrillation (AF)
  • with or without congestive heart failure (CHF)
  • taking digoxin tablets with or without holiday regimens

You may not qualify if:

  • taking the following drugs concurrently: amiodarone, verapamil, quinidine and propafenone.
  • diagnosed with thyroid disorders (hyperthyroidism \& hypothyroidism).
  • diagnosed with renal failure
  • pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Atrial Fibrillation

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Teaching Assistant

Study Record Dates

First Submitted

July 1, 2015

First Posted

July 3, 2015

Study Start

October 1, 2012

Primary Completion

October 1, 2014

Study Completion

October 1, 2014

Last Updated

July 7, 2015

Record last verified: 2015-07