RECRUITINGPhase 2INTERVENTIONAL
A Gene Therapy Study of RP-A501 in Male Patients With Danon Disease
Gene Therapy for Danon Disease: A Phase 2 Study Evaluating the Efficacy and Safety of Intravenously Administered Adeno-Associated Virus Serotype 9 (rAAV9) Vector Containing the Human LAMP2 Isoform B Transgene (RP-A501; AAV9.LAMP2B) in Male Patients With Danon Disease
About This Trial
This is a single arm Phase 2 trial to evaluate the efficacy and safety of RP-A501, a recombinant adeno-associated virus serotype 9 (AAV9) containing the human lysosome-associated membrane protein 2 isoform B (LAMP2B) transgene, in male patients with Danon Disease.
Who May Be Eligible (Plain English)
Key Who May Qualify:
1. Documentation of a pathogenic or likely pathogenic variant of the LAMP2 gene.
2. Male.
3. Age ≥8 years.
4. Evidence of left ventricular hypertrophy with preserved systolic function phenotype as defined by each of the following:
1. Abnormal thickening of Left ventricular wall,
2. Left ventricular ejection fraction (LVEF) ≥ 50%.
5. New York Heart Association (NYHA) Class II to III.
6. High sensitivity Troponin I (hsTnI) ≥20% above the upper limit of normal (ULN)
7. Ability to comply with study procedures including investigational therapy and follow-up evaluations.
Key Who Should NOT Join This Trial:
1. Anti-AAV9 neutralizing antibody titer \>1:40.
2. Severe heart failure or requirement for advanced therapies.
3. History of intracardiac thrombosis or arterial thromboembolic events including stroke, transient ischemic attack (TIA), acute coronary syndrome, myocardial infarction or unstable angina.
4. Prior cardiac or other organ (lung, liver, other) transplantation.
Always talk to your doctor about whether this trial is right for you.
Original Eligibility Criteria
View original clinical language
Key Inclusion Criteria:
1. Documentation of a pathogenic or likely pathogenic variant of the LAMP2 gene.
2. Male.
3. Age ≥8 years.
4. Evidence of left ventricular hypertrophy with preserved systolic function phenotype as defined by each of the following:
1. Abnormal thickening of Left ventricular wall,
2. Left ventricular ejection fraction (LVEF) ≥ 50%.
5. New York Heart Association (NYHA) Class II to III.
6. High sensitivity Troponin I (hsTnI) ≥20% above the upper limit of normal (ULN)
7. Ability to comply with study procedures including investigational therapy and follow-up evaluations.
Key Exclusion Criteria:
1. Anti-AAV9 neutralizing antibody titer \>1:40.
2. Severe heart failure or requirement for advanced therapies.
3. History of intracardiac thrombosis or arterial thromboembolic events including stroke, transient ischemic attack (TIA), acute coronary syndrome, myocardial infarction or unstable angina.
4. Prior cardiac or other organ (lung, liver, other) transplantation.
Treatments Being Tested
GENETIC
RP-A501
RP-A501 is a gene therapy product consisting of a rAAV9 capsid containing the human LAMP2B transgene which will be administered as a single IV infusion.
Locations (6)
University of California, San Diego
La Jolla, California, United States
Boston Children's Hospital
Boston, Massachusetts, United States
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
German Heart Center Munich
Munich, Germany
Meyer Childrens Hospital
Florence, Italy
Great Ormund Street Hospital & UCL Institute of Cardiovascular Science
London, United Kingdom