Left Atrial Appendage Closure With WATCHMAN FLX Device in Recurrent Gastrointestinal Bleeding: The GI-FLX Registry

Sponsor
Kansas City Heart Rhythm Research Foundation (Other)
Overall Status
Recruiting
CT.gov ID
NCT06052358
Collaborator
Kansas City Heart Rhythm Institute, Overland Park, Kansas (Other), Texas Cardiac Arrythmia Institute, Austin, Texas (Other), Los Robles Health System, Los Robles, California (Other), Centennial Medical Center, Nashville, Tennessee (Other)
500
4
23.3
125
5.4

Study Details

Study Description

Brief Summary

The GI-FLX Registry is intended to create a registry of patients with a history of Atrial Fibrillation (AF) and Gastrointestinal (GI) bleed who will receive Left Atrial Appendage Closure (LAAC) with WATCHMAN FLX device and compare to patients with AF and GI bleed who do not have LAAC. The GI-FLX Registry will be a multi-center, non-randomized registry. Approximately 250 prospective patients will be enrolled at all 4 sites. Historical cohort of 250 patients after propensity score matching with WATCHMAN-FLX arm will be included in the final analysis.

Condition or Disease Intervention/Treatment Phase
  • Device: LAAC with Watchman FLX device

Detailed Description

A large gap in the literature exists as no prior study has evaluated the outcomes of those with prior GI bleeding undergoing LAAC. Furthermore, patients with prior GI bleed may be on no or minimal antithrombotic therapy prior to LAAC and subsequently require escalation of antithrombotic therapy following LAAC. Long-term outcomes including bleeding events will be most relevant and informative to this potentially high-risk subgroup. Therefore, this is an attempt to create a prospective registry describing outcomes of patients with AF and prior GI bleed undergoing LAAC to provide insight into safety and efficacy and will also compare to a historical cohort of patients with AF and GI bleed without LAAC.

Study Design

Study Type:
Observational [Patient Registry]
Anticipated Enrollment :
500 participants
Observational Model:
Cohort
Time Perspective:
Prospective
Official Title:
Left Atrial Appendage Closure With WATCHMAN FLX Device in Recurrent Gastrointestinal Bleeding: The GI-FLX Registry
Actual Study Start Date :
Aug 23, 2023
Anticipated Primary Completion Date :
Aug 1, 2025
Anticipated Study Completion Date :
Aug 1, 2025

Arms and Interventions

Arm Intervention/Treatment
Patients with a history of AF and GI bleeding who will undergo LAAC

This is group of patients who will undergo LAAC with Watchman FLX device and have a history of AF and GI bleed.

Device: LAAC with Watchman FLX device
LAAC with Watchman FLX device

Patients with a history of AF and GI bleeding without LAAC

This is a historical cohort of patients with AF and recurrent GI bleeding without LAAC.

Outcome Measures

Primary Outcome Measures

  1. Number of participants with Primary systemic thromboembolism (STE)/stroke, Recurrent bleeding after initial period of oral anticoagulant (OAC) requiring blood transfusion or hospitalization and Hemorrhagic stroke [12 Months]

    Baseline characteristics of participants such as Primary systemic thromboembolism (STE)/stroke, Recurrent bleeding after initial period of oral anticoagulant (OAC) requiring blood transfusion or hospitalization and Hemorrhagic stroke will be evaluated

Secondary Outcome Measures

  1. Number of participants with complications such as Peri-device leaks (PDL), Device related thrombosis (DRT), Minor bleeding episodes leading to hospital visit but no transfusion, Incidence of hospitalization and Mortality [45 Days, 6 Months and 12 Months]

    Number of participants with complications such as Peri-device leaks (PDL), Device related thrombosis (DRT), Minor bleeding episodes leading to hospital visit but no transfusion, Incidence of hospitalization and Mortality will be evaluated.

  2. Number of days or hours of Hospital stay [45 Days, 6 Months and 12 Months]

    If any participants are hospitalized, their Hospital length of stay will be evaluated.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years and Older
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • All male and female patients who are > 18 years of age

  • Have Atrial Fibrillation

  • Have CHADS2VASc > 2

  • Have history of GI bleeding OR hospital admission that required blood transfusion OR emergency room visit requiring stopping of OAC OR outpatient 2 gm of Hgb drop from baseline, with or without evidence of upper or lower GI bleeding and requiring endoscopic procedure with holding of OAC.

  • Ability to understand study procedures and to comply with them for the entire length of the study.

Exclusion Criteria:
  • Inability or unwillingness of individual to give written informed consent.

  • Other indications for OAC like deep vein thrombosis (DVT) or Pulmonary embolism (PE) or mechanical heart valve.

  • Patient who is pregnant will be excluded (Pregnancy will be excluded by checking urine beta-HCG).

  • Patient not following up with our practice / clinic after the procedure

Contacts and Locations

Locations

Site City State Country Postal Code
1 Kansas City Heart Rhythm Institute - Roe Clinic Overland Park Kansas United States 66211
2 Overland Park Regional Medical Center Overland Park Kansas United States 66215
3 Research Medical Center Clinic Kansas City Missouri United States 64032
4 Research Medical Center Kansas City Missouri United States 64032

Sponsors and Collaborators

  • Kansas City Heart Rhythm Research Foundation
  • Kansas City Heart Rhythm Institute, Overland Park, Kansas
  • Texas Cardiac Arrythmia Institute, Austin, Texas
  • Los Robles Health System, Los Robles, California
  • Centennial Medical Center, Nashville, Tennessee

Investigators

  • Principal Investigator: Dhanunjaya Lakkireddy, MD, Kansas City Heart Rhythm Institute

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Kansas City Heart Rhythm Research Foundation
ClinicalTrials.gov Identifier:
NCT06052358
Other Study ID Numbers:
  • KCHRRF_GI FLX_0022
First Posted:
Sep 25, 2023
Last Update Posted:
Sep 28, 2023
Last Verified:
Sep 1, 2023
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
Yes
Additional relevant MeSH terms:

Study Results

No Results Posted as of Sep 28, 2023