The Evaluation of Efficacy and Safety of Additional Freezing of Cryoballoon Ablation in Patients with Paroxysmal Atrial Fibrillation, Randomized Multicenter Clinical Trial

The Evaluation of Efficacy and Safety of Additional Freezing of Cryoballoon Ablation in Patients with Paroxysmal Atrial Fibrillation, Randomized Multicenter Clinical Trial - Additional Freezing of Cryoballoon Ablation

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000020130

Enrollment

110

Registered

2015-12-10

Start date

2015-04-06

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Paroxysmal atrial fibrillation

Interventions

additional freezing of cryoballoon ablation no additional freezing of cryoballoon ablation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Paroxysmal atrial fibrillation receiving cryoballoon ablation

Exclusion criteria

Exclusion criteria: pregnant allergy to contrast agent

Design outcomes

Primary

Measure	Time frame
recurrence rate of atrial tachyarrhythmia 1 year after ablation evaluation of ablation lesion using MRI	—

Secondary

Measure	Time frame
complication of cyroballoon ablation	—

Countries

Japan

Contacts

Public ContactKoji Miyamoto

National Cerebral and Cardiovascular Center Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine

koji3koji3@gmail.com06-6833-5012

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026