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Gene Therapy for Post-Operative Atrial Fibrillation (AFGT01)

Primary Purpose

Atrial Fibrillation, Post-operative Atrial Fibrillation

Status
Recruiting
Phase
Phase 1
Locations
United States
Study Type
Interventional
Intervention
AdKCNH2-G628S
Sponsored by
Kevin Donahue
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Atrial Fibrillation

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion:

  • Elective valve surgery (alone or with coronary artery bypass grafting surgery) and one of the risk factors listed below, or elective coronary artery bypass grafting surgery with two of the risk factors listed below.
  • Risk factors:

    • age greater than 70,
    • increased left atrial size (> 4 cm left atrial diameter or LA volume index > 35 on echocardiogram).
    • obesity (body mass index > 30)
    • history of:

      • paroxysmal AF
      • hypertension
      • chronic pulmonary disease
      • diabetes mellitus
      • clinical heart failure
      • rheumatic heart disease

Exclusion:

  • persistent or permanent AF
  • QTc > 475 on pre-op ECG or any time in last year (unless due to QT prolonging drug that was stopped > 5 half-lives before surgery with verification of QT normalization after discontinuing drug)
  • QTc prolonging drug use (unless stopped > 5 half-lives prior to surgery)
  • Any antiarrhythmic drug use in last year (inclusive of Vaughan Williams class I and III drugs, not including β-blocker or calcium channel blocker drugs)
  • Any history of inherited arrhythmia syndrome
  • Any prior or current sustained ventricular arrhythmias
  • Any prior or current clinically significant bradyarrhythmias unless already treated with pacemaker and ventricular pacing <20% (to reliable measure QT interval during the study)
  • Any prior gene therapy
  • Left ventricular ejection fraction (LVEF) < 35%
  • Prior open chest surgery
  • History of or current malignancy, unless documented to be cured
  • History of or current chemotherapy, radiotherapy, or other immunosuppressive therapy within the past 30 days. Corticosteroid treatment may be permitted at the discretion of the Primary Investigator
  • History of infection with human immunodeficiency virus (HIV), hepatitis A, B, or C, or tuberculosis
  • Immunizations of any kind in the month prior to surgery
  • Underlying defect in immune function or history of multiple or severe life-threatening infections
  • Significant liver disease (active hepatitis, AST or ALT greater than twice the upper limit of normal, prior or current liver failure with Pugh-Child category A-C disease)
  • Significant renal disease (GFR less than 30)
  • Current pregnancy
  • Childbearing potential unless participant agrees to prevent pregnancy prior to and for at least 3 months after virus delivery 10
  • Any condition that limits life to < 12 months other than the condition to be treated with the planned surgery
  • Participation in any other clinical trial within 30 days of surgery
  • Incarcerated persons
  • Individuals under the age of 18 years
  • Unwillingness to undergo the study interventions and follow-up as outlined in the schedule of events
  • Ongoing medical or other condition that is deemed by the Principal Investigator to interfere with the conduct or assessments of the study
  • Lack of capacity to provide participant's own informed consent.

Sites / Locations

  • UMass Memorial HospitalRecruiting

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Experimental

Experimental

No Intervention

Arm Label

dose escalation

low dose

high dose

control

Arm Description

initial phase, increasing dose

second phase, fixed dose 5x10(11) vp

second phase, fixed dose 2x10(12) vp

second phase, blinded, randomized with no intervention delivered but with testing and monitoring.

Outcomes

Primary Outcome Measures

proportion of patients having a post-operative complication relative to controls
proportion of patients having a post-operative complication relative to controls

Secondary Outcome Measures

proportion of patients having post-operative atrial fibrillation
proportion of patients having post-operative atrial fibrillation

Full Information

First Posted
January 24, 2022
Last Updated
October 11, 2023
Sponsor
Kevin Donahue
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
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1. Study Identification

Unique Protocol Identification Number
NCT05223725
Brief Title
Gene Therapy for Post-Operative Atrial Fibrillation
Acronym
AFGT01
Official Title
AdKCNH2-G628S Gene Therapy for Post-Operative Atrial Fibrillation
Study Type
Interventional

2. Study Status

Record Verification Date
October 2023
Overall Recruitment Status
Recruiting
Study Start Date
October 1, 2023 (Actual)
Primary Completion Date
August 2025 (Anticipated)
Study Completion Date
August 2026 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor-Investigator
Name of the Sponsor
Kevin Donahue
Collaborators
National Heart, Lung, and Blood Institute (NHLBI)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This clinical trial will have 2 components: a brief dose-ranging study and a randomized comparison of 2 doses of AdKCNH2-G628S with control cardiac surgery patients. The study will assess safety of the intervention in a population at increased risk for post-operative atrial fibrillation.
Detailed Description
Post-operative AF (POAF) is a specific form of AF occurring in the days after cardiothoracic surgery. A unique element of POAF is the limited duration of risk, which peaks 3 days and dissipates 10 days after surgery. We propose gene therapy for POAF. Our hypothesis is that counteracting AF-related electrical remodeling will disrupt the reentrant electrical circuits integral to maintaining AF. We have extensive preclinical data showing safety and efficacy of adenoviral gene transfer using the gene mutation KNCH2-G628S. When delivered to the atria using adenoviruses and a novel gene painting technique, KCNH2-G628S effectively and specifically prolongs atrial action potential and prevents development of AF for the 10-14-day duration of post-operative AF risk. This clinical trial will have 2 components: a brief dose-ranging study and a randomized comparison of 2 doses of AdKCNH2-G628S with control cardiac surgery patients.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Atrial Fibrillation, Post-operative Atrial Fibrillation

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 1
Interventional Study Model
Sequential Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Masking Description
participant is masked due to delivery during general anesthesia, outcomes assessors and investigators are fully masked to study group.
Allocation
Randomized
Enrollment
78 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
dose escalation
Arm Type
Experimental
Arm Description
initial phase, increasing dose
Arm Title
low dose
Arm Type
Experimental
Arm Description
second phase, fixed dose 5x10(11) vp
Arm Title
high dose
Arm Type
Experimental
Arm Description
second phase, fixed dose 2x10(12) vp
Arm Title
control
Arm Type
No Intervention
Arm Description
second phase, blinded, randomized with no intervention delivered but with testing and monitoring.
Intervention Type
Biological
Intervention Name(s)
AdKCNH2-G628S
Intervention Description
adenovirus containing the transgene KCNH2-G628S
Primary Outcome Measure Information:
Title
proportion of patients having a post-operative complication relative to controls
Description
proportion of patients having a post-operative complication relative to controls
Time Frame
3 months
Secondary Outcome Measure Information:
Title
proportion of patients having post-operative atrial fibrillation
Description
proportion of patients having post-operative atrial fibrillation
Time Frame
1 month

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion: Elective valve surgery (alone or with coronary artery bypass grafting surgery) and one of the risk factors listed below, or elective coronary artery bypass grafting surgery with two of the risk factors listed below. Risk factors: age greater than 70, increased left atrial size (> 4 cm left atrial diameter or LA volume index > 35 on echocardiogram). obesity (body mass index > 30) history of: paroxysmal AF hypertension chronic pulmonary disease diabetes mellitus clinical heart failure rheumatic heart disease Exclusion: persistent or permanent AF QTc > 475 on pre-op ECG or any time in last year (unless due to QT prolonging drug that was stopped > 5 half-lives before surgery with verification of QT normalization after discontinuing drug) QTc prolonging drug use (unless stopped > 5 half-lives prior to surgery) Any antiarrhythmic drug use in last year (inclusive of Vaughan Williams class I and III drugs, not including β-blocker or calcium channel blocker drugs) Any history of inherited arrhythmia syndrome Any prior or current sustained ventricular arrhythmias Any prior or current clinically significant bradyarrhythmias unless already treated with pacemaker and ventricular pacing <20% (to reliable measure QT interval during the study) Any prior gene therapy Left ventricular ejection fraction (LVEF) < 35% Prior open chest surgery History of or current malignancy, unless documented to be cured History of or current chemotherapy, radiotherapy, or other immunosuppressive therapy within the past 30 days. Corticosteroid treatment may be permitted at the discretion of the Primary Investigator History of infection with human immunodeficiency virus (HIV), hepatitis A, B, or C, or tuberculosis Immunizations of any kind in the month prior to surgery Underlying defect in immune function or history of multiple or severe life-threatening infections Significant liver disease (active hepatitis, AST or ALT greater than twice the upper limit of normal, prior or current liver failure with Pugh-Child category A-C disease) Significant renal disease (GFR less than 30) Current pregnancy Childbearing potential unless participant agrees to prevent pregnancy prior to and for at least 3 months after virus delivery 10 Any condition that limits life to < 12 months other than the condition to be treated with the planned surgery Participation in any other clinical trial within 30 days of surgery Incarcerated persons Individuals under the age of 18 years Unwillingness to undergo the study interventions and follow-up as outlined in the schedule of events Ongoing medical or other condition that is deemed by the Principal Investigator to interfere with the conduct or assessments of the study Lack of capacity to provide participant's own informed consent.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Kevin Donahue, MD
Phone
508-421-1538
Email
Kevin.Donahue@umassmed.edu
First Name & Middle Initial & Last Name or Official Title & Degree
Taylor Orwig
Email
taylor.orwig@umassmed.edu
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Kevin Donahue, MD
Organizational Affiliation
University of Massachusetts Chan Medical School
Official's Role
Principal Investigator
Facility Information:
Facility Name
UMass Memorial Hospital
City
Worcester
State/Province
Massachusetts
ZIP/Postal Code
01655
Country
United States
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Kevin Donahue, MD
Phone
508-421-1538
Email
kevin.donahue@umassmed.edu
First Name & Middle Initial & Last Name & Degree
Taylor Orwig
Email
taylor.orwig@umassmed.edu
First Name & Middle Initial & Last Name & Degree
David McManus, MD
First Name & Middle Initial & Last Name & Degree
Kevin Donahue, MD

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Data from the clinical trial will be made available to the scientific community and the general public in the following ways: As soon as final data are complete, verified and analyzed, manuscripts will be written and submitted to scientific journals with the highest possible impact factor to achieve the widest possible dissemination within the scientific community. Presentations at scientific meetings within the disciplines of cardiac surgery, cardiology, cardiac electrophysiology and gene therapy will further disseminate the research information gained as a result of the proposed studies. The research data will be uploaded to an openly available research website maintained by UMass for review and use by the scientific community. The research results will be uploaded to clinicaltrials.gov. Press releases, summaries of research findings and interviews with investigators will be released to the general public to publicize the information gained in the proposed research.
IPD Sharing Time Frame
as per plan description
IPD Sharing Access Criteria
as per plan description
Citations:
PubMed Identifier
15642761
Citation
Kikuchi K, McDonald AD, Sasano T, Donahue JK. Targeted modification of atrial electrophysiology by homogeneous transmural atrial gene transfer. Circulation. 2005 Jan 25;111(3):264-70. doi: 10.1161/01.CIR.0000153338.47507.83. Epub 2005 Jan 10.
Results Reference
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PubMed Identifier
20479154
Citation
Amit G, Kikuchi K, Greener ID, Yang L, Novack V, Donahue JK. Selective molecular potassium channel blockade prevents atrial fibrillation. Circulation. 2010 Jun 1;121(21):2263-70. doi: 10.1161/CIRCULATIONAHA.109.911156. Epub 2010 May 17.
Results Reference
background
PubMed Identifier
28676183
Citation
Liu Z, Hutt JA, Rajeshkumar B, Azuma Y, Duan KL, Donahue JK. Preclinical efficacy and safety of KCNH2-G628S gene therapy for postoperative atrial fibrillation. J Thorac Cardiovasc Surg. 2017 Nov;154(5):1644-1651.e8. doi: 10.1016/j.jtcvs.2017.05.052. Epub 2017 May 23.
Results Reference
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Gene Therapy for Post-Operative Atrial Fibrillation

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