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CompletedNCT00807586SAABUpdated Aug 20, 2019Results posted

Corticosteroid Pulse After Ablation

A Phase 4 interventional study of Solumedrol and Placebo in Atrial Fibrillation, sponsored by Minneapolis Heart Institute Foundation. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-08-20.

Sponsored by Minneapolis Heart Institute Foundation · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
119
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

Radiofrequency ablation is an effective treatment for atrial fibrillation. However, about 20% of the time the atrial fibrillation recurs. Steroids given after the ablation may decrease inflammation caused by the ablation and thus improve healing and decrease the chance of recurrence of atrial fibrillation.

In this study patients will be randomized to receive intravenous steroids or not immediately following the ablation.

Read the detailed description

Atrial fibrillation, a common arrhythmia, is the source of considerable morbidity. Prevalence of atrial fibrillation in adults is 0.5%, increasing to 10% in those patients over the age of seventy five. Numbers are expected to increase nearly 2.5 fold over the next 50 years. Radiofrequency (RF) ablation to cure atrial fibrillation has become an established and effective therapy in the many atrial fibrillation patients. However, approximately 20% return with recurrent atrial fibrillation after ablation.

RF ablation directly targets the substrate for atrial fibrillation, cauterizing cardiac tissue through the application of radiofrequency energy , causing a myocardial lesion which effectively blocks the errant pathway. This process of RF ablation induces an inflammatory effect. As the lesion heals it often enlarges. This may contribute to recurrence of atrial fibrillation after ablation, as well as increased pain. There is some early evidence that a single dose of corticosteroids after ablation may improve the healing process, thus decreasing pain and incidence of recurrent atrial fibrillation.

The aim of the study is to determine the usefulness of a one time dose of solumedrol following radiofrequency ablation for atrial fibrillation..

02

Conditions studied

  • Atrial Fibrillation

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Keywords

  • Atrial Fibrillation
  • Corticosteroid
  • Radiofrequency catheter ablation for atrial fibrillation
03

In context

Atrial Fibrillation

3,870 studies on the registry are indexed under Atrial Fibrillation; 924 are open to participants now.

This study's enrollment of 119 is below the median of 144 across 2,380 interventional studies indexed under Atrial Fibrillation.

Browse Atrial Fibrillation studies →

Lead sponsor

Minneapolis Heart Institute Foundation is the lead sponsor of 33 studies on the registry; 13 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age ≥ 18
  • Drug refractory, symptomatic paroxysmal atrial fibrillation

Exclusion criteria

Exclusion Criteria:

  • Contraindication to solumedrol
  • Persistent or permanent Atrial Fibrillation
  • Previous history of radiofrequency ablation for atrial fibrillation
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
119 participants (actual)

Study arms

  • Experimental
    Steroid

    Drug: Solumedrol

  • Placebo comparator
    Placebo

    Drug: Placebo

Interventions

  • DrugSolumedrol

    100mg, given once within 2 hours of the end of the ablation procedure

  • DrugPlacebo

    Normal saline (1.6 cc)

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What researchers measure

Primary outcomes

  1. Number of Participants With Clinically Significant Atrial Arrhythmias at 6 Weeks

    Clinically significant atrial arrhythmias include ER, urgent care, or hospitalization for atrial fibrillation, cardioversion for atrial fibrillation, or atrial fibrillation requiring an increase in anti-arrhythmia medication

    Time frame: 6 weeks

Secondary outcomes

  1. Cardiac Pain Assessment

    Perception of cardiac pain assessed by a numerical pain scale (0= no pain; 10=worst pain imaginable)

    Time frame: one day and one week

  2. Symptoms Post Ablation Requiring Diuretic

    Occurrence of shortness of breath or edema requiring administration of a diuretic

    Time frame: 6 weeks

  3. Repeat Intervention

    Need for repeat ablation

    Time frame: 3 months

07

Results

Posted Aug 20, 2019
Limitations and caveats
This was a single center study trial

Participant flow

Participant flow — Overall Study
MilestoneSteroidPlacebo
Started6059
Completed5458
Not completed61

Outcome measures

PrimaryNumber of Participants With Clinically Significant Atrial Arrhythmias at 6 Weeks

Clinically significant atrial arrhythmias include ER, urgent care, or hospitalization for atrial fibrillation, cardioversion for atrial fibrillation, or atrial fibrillation requiring an increase in anti-arrhythmia medication

Time frame:
6 weeks
Reported as:
Count of participants · Participants
Number of Participants With Clinically Significant Atrial Arrhythmias at 6 Weeks
ParticipantsSteroidPlacebo
Number of Participants With Clinically Significant Atrial Arrhythmias at 6 Weeks412
SecondaryCardiac Pain Assessment

Perception of cardiac pain assessed by a numerical pain scale (0= no pain; 10=worst pain imaginable)

Time frame:
one day and one week
Reported as:
Mean · units on a scale
Cardiac Pain Assessment
units on a scaleSteroidPlacebo
Pain Scale Day 10.9 ± 1.51.5 ± 2.4
Pain Scale Week 10.8 ± 1.90.6 ± 1.2
SecondarySymptoms Post Ablation Requiring Diuretic

Occurrence of shortness of breath or edema requiring administration of a diuretic

Time frame:
6 weeks

No measurements were reported for this outcome.

SecondaryRepeat Intervention

Need for repeat ablation

Time frame:
3 months
Reported as:
Count of participants · Participants
Repeat Intervention
ParticipantsSteroidPlacebo
Repeat Intervention28

Adverse events

Collected over there were Adverse Events collected from six weeks to 1 year. Non-serious events are listed at a 3% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Steroid—0/60 (0%)25/60 (41.7%)
Placebo—0/59 (0%)17/59 (28.8%)
Most frequent other events
Most frequent other events
EventSteroidPlacebo
Shortness of BreathCardiac disorders7/602/59
FatigueCardiac disorders6/601/59
Chest PainCardiac disorders1/605/59
Atrial FlutterCardiac disorders5/603/59
HypotensionCardiac disorders0/603/59
Back PainCardiac disorders3/600/59
Edema/fluid overloadCardiac disorders3/601/59
Abdominal PainCardiac disorders0/602/59

Baseline characteristics

Age, Continuous
Age, Continuous(years)SteroidPlaceboTotal
Mean60.3 ± 10.260.0 ± 11.460.1 ± 11.2
Sex/Gender, Customized
Sex/Gender, Customized(participants)SteroidPlaceboTotal
Female141327
Male464692
08

Study locations

1 site
  • Abbott Northwestern Hospital
    Minneapolis, Minnesota 55407, United States
09

References and documents

Publications

  • Grubb NR, Furniss S. Science, medicine, and the future: Radiofrequency ablation for atrial fibrillation. BMJ. 2001 Mar 31;322(7289):777-80. doi: 10.1136/bmj.322.7289.777. No abstract available. PubMed 11282867 ↗
  • Pappone C, Santinelli V. Atrial fibrillation ablation: state of the art. Am J Cardiol. 2005 Dec 19;96(12A):59L-64L. doi: 10.1016/j.amjcard.2005.09.063. Epub 2005 Oct 5. PubMed 16399094 ↗
  • Fenelon G, Franco M, Mora O, Katchburian E, de Paola AA. Combined therapy with steroids and antioxidants prevents ultrastructural damage surrounding chronic radiofrequency lesions. Pacing Clin Electrophysiol. 2004 Jan;27(1):65-72. doi: 10.1111/j.1540-8159.2004.00387.x. PubMed 14720157 ↗
  • Fenelon G, Fernandes R, Franco M, de Paola AA. Steroids prevent late extension of radiofrequency lesions in the thigh muscle of infant rats: implications for pediatric ablation. J Interv Card Electrophysiol. 2003 Aug;9(1):7-13. doi: 10.1023/a:1025308218103. PubMed 12975564 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00807586
Lead sponsor
Minneapolis Heart Institute Foundation
Collaborators
Abbott Medical Devices
Responsible party
Sponsor
First posted
Dec 12, 2008
Start date
Dec 2008
Primary completion
Dec 2009
Completion
Dec 2013
Results posted
Aug 20, 2019
Last update
Aug 20, 2019

Study contacts

Daniel P Melby, MD
principal investigator · Minneapolis Heart Institute

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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