RP-A501 is being developed for Danon Disease, a rare genetic disorder characterized by thickening and weakening of the heart muscle, often resulting in heart failure, and for male patients, frequent death during adolescence or early adulthood. Rocket is the first company demonstrating safety and efficacy data in clinical studies for gene therapy targeting the heart.

An open-label, global Phase 2 pivotal clinical trial of RP-A501 for the treatment of Danon Disease has commenced. The trial is expected to enroll 12 male patients from the U.S. and EU. The trial will assess a co-primary endpoint consisting of LAMP2 protein expression and left ventricular (LV) mass reduction from baseline at 12 months.

Phase 2 Trial Sites

For more details about the RP-A501 for Danon Disease clinical trial, visit clinicaltrials.gov.

Frequently Asked Questions

The Natural History of a Disease is the typical progression of the disease over a person’s lifetime starting from its onset

Natural History studies are observational studies that gather comprehensive data on the course of the disease to gain a better understanding of its progression and impact on patients. Data captured may include information on the physical signs and symptoms patients experience, test results (for example blood tests or imaging), genetic information, and health-related quality of life, over a period of time. This information helps describe the disease course and identify important factors (e.g. demographic, genetic, and/or lab test results), that may contribute to better or worse disease outcomes.

Travel, accommodation, and food stipend would be provided. Study assessments are provided free of charge.

Natural History Studies are particularly important for rare diseases. Given the diversity of symptoms and the small size of the patient population, these studies are often the only opportunity for researchers and physicians to address significant knowledge gaps and obtain a robust understanding of the disease and patient experience.

Engaging in a Natural History Study offers numerous benefits to the community, such as:

  • Raising awareness in medical, academic and pharmaceutical sectors
  • Empowering rare disease patient communities with knowledge and support for advocating better healthcare policies and support services
  • Enhancing patient care with improved insights into disease progression, allowing for more personalized treatment plans and potentially earlier detection of complications
  • Contributing to advancements in healthcare

These studies provide various avenues to help inform and design clinical trials, such as:

  • Highlighting areas of unmet medical need
  • Understanding characteristics of the patient population to define a treatment benefit from a patient’s perspective.
  • Describing disease progression, enabling the identification of clinical outcome measures and biomarkers
  • Provide patient-centric data for health authorities such as the FDA, and other public health institutions to use in their review processes of investigational treatments.
Learn more about Rocket’s clinical trial for FA

Interested in learning more?
Visit our Patients & Caregivers page or email us at clinicaltrials@nullrocketpharma.com

View more details about the Phase 2 pivotal trial of RP-A501 and natural history study on clinicaltrials.gov.

To read our Expanded Access statement, click here.

Healthcare Professionals

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At Rocket, we are deeply committed to working closely with healthcare professionals as we advance cutting-edge gene therapy research and support patients with rare, genetic diseases.

Learn about our science
Learn about our disease focus
Learn about our clinical trials

The LAMPLIGHT STUDIES

Rocket is conducting both investigational and observational studies for Danon disease, a rare, inherited cardiomyopathy that leads to progressive heart muscle weakness and early mortality. Rocket is advancing RP-A501, an investigational AAV9-based gene therapy through a global, open-label Phase 2 pivotal trial evaluating safety and efficacy in male patients.

Concurrently, Rocket is sponsoring a multi-center, non-interventional natural history study designed to collect longitudinal clinical data on patients with Danon disease to better characterize disease progression.

Learn more about the LAMPLIGHT Studies

Importance of Genetic Testing

Rocket is committed to raising awareness of genetic testing programs that can shorten the diagnostic journey, including our sponsorship of the Invitae Unlock™ Cardiomyopathy and Arrhythmia testing program and role as a founding member of the BeginNGS™ consortium in partnership with Rady Children’s Institute for Genomic Medicine to facilitate newborn screenings using rapid Whole Genome Sequencing (rWGS®).

Learn about our commitments

Expanded Access Policy

To read our Expanded Access statement, click here.

Medical Information

Healthcare professionals may contact Rocket at [email protected].

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