Personalized Atrial Fibrillation Ablation with QDOT Catheter

Personalized Atrial Fibrillation Ablation With the QDOT Catheter - The QDOT-by-LAW Trial

Phase 4 Interventional Centro Medico Teknon · NCT04298177

This study tests if a new catheter can help people with paroxysmal atrial fibrillation have better long-term results after heart ablation compared to standard methods.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment77 (estimated)
Ages18 Years and up
SexAll
SponsorCentro Medico Teknon Academic / other
Locations1 site (Barcelona)
Trial IDNCT04298177 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of the QDOT® catheter for performing high-power short-duration ablation in patients with paroxysmal atrial fibrillation (PAF). The study aims to assess the long-term outcomes of this novel approach compared to standard ablation techniques. Participants will undergo circumferential pulmonary vein isolation (PVI) to determine the catheter's safety and efficacy in preventing arrhythmia recurrence. The trial builds on previous findings that suggest improved outcomes with advanced catheter technology.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who have been diagnosed with paroxysmal atrial fibrillation and are intolerant or refractory to medical treatment.

Not a fit: Patients under 18 years old, pregnant women, or those who have previously undergone atrial fibrillation procedures may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective and safer treatment options for patients suffering from atrial fibrillation.

How similar studies have performed: Previous studies have shown promising results with similar catheter technologies, indicating potential for success in this novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \> 18 years.
* Indication for paroxysmal atrial fibrillation ablation.
* Signed informed consent

Exclusion Criteria:

* Age \< 18 years.
* Pregnancy.
* Previous AF redo procedure.
* Impossibility to perform a pre-procedural CT scan.
* Concomitant investigation treatments.
* Medical, geographical and social factors that make study participation impractical, and inability to give written informed consent. Patient's refusal to participate in the study.

Where this trial is running

Barcelona

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Atrial Fibrillationatrial fibrillationcatheter ablationpulmonary vein isolationleft atrial wall thicknesshigh-power short-duration ablationQDOT
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.