Avidity Biosciences Shares Exciting Phase 1/2 Del-Brax Data

Groundbreaking Progress in FSHD Treatment with Del-Brax

Avidity Biosciences, Inc. (NASDAQ: RNA), a pioneering biopharmaceutical company focused on developing innovative RNA therapeutics known as Antibody Oligonucleotide Conjugates (AOCs™), has recently revealed impressive topline results from the FORTITUDE™ clinical trials. These findings stem from their advanced therapy, delpacibart braxlosiran (del-brax), aimed at treating Facioscapulohumeral Muscular Dystrophy (FSHD).

Unveiling Positive Clinical Results

In the Phase 1/2 FORTITUDE™ study, conducted to evaluate the efficacy of del-brax in multiple dose escalation cohorts, participants reported significant improvements in various functional measures when compared to those receiving a placebo. This marks a notable milestone in the clinical research landscape for FSHD, a hereditary condition characterized by progressive muscle weakness and disability.

Impressive Efficacy Metrics

The topline data from the trial suggests a consistent enhancement in functional mobility and muscle strength, assessed through various robust measures such as the 10-Meter Walk-Run Test (10MWRT), Timed Up and Go (TUG), and quantitative muscle testing (QMT). Furthermore, improvements in quality of life as reported by participants were markedly evident alongside a significant reduction in important biomarkers associated with muscle damage.

Future of the Del-Brax Program

Building on these promising results, Avidity plans to pursue an accelerated Biologics License Application (BLA) for del-brax, aiming for submission in the near future. The company is propelled by an unwavering commitment to patients suffering from FSHD given this treatment's ability to combat the underlying causes of the disease, targeting the DUX4 gene directly.

Del-Brax Against FSHD

Del-brax is unique in its approach as it aims to mitigate the effects of FSHD by focusing on the direct genetic underpinnings of the disease, namely the problematic expression of the double homeobox 4 (DUX4) gene. With no approved treatments for this debilitating condition currently available, del-brax provides a beacon of hope for many individuals affected.

A Commitment to Patients and Research

Sarah Boyce, president and CEO of Avidity, expressed her optimism about the results, thanking all participants and their families for their invaluable support. Their involvement is crucial for driving the research forward.

Additionally, the company announced the initiation of the global Phase 3 FORWARD™ study, which is designed to provide further confirmation of del-brax's efficacy. Avidity’s dedication to advancing this treatment underlines its mission to improve the lives of patients facing FSHD and other rare neuromuscular disorders.

The Importance of Biomarker Studies

The ongoing biomarker cohort within FORTITUDE is expected to yield results regarding the KHDC1L biomarker, which has been identified as a critical indicator of FSHD. With the completion of participant enrollment and treatment for this cohort, Avidity anticipates the release of these findings, which could further validate the clinical effectiveness of del-brax.

Engaging with the Community

Avidity is not just focused on clinical research; it actively engages with the community by hosting events aimed at educating and sharing findings with investors and analysts. This includes live video webcasts showcasing trial updates, such as the latest information on del-brax. This engagement underscores the company’s transparency and commitment to involving stakeholders in its journey.

About Avidity Biosciences

Avidity is at the forefront of RNA therapeutic development. With a vision to improve lives through innovative treatments, its proprietary AOC technology is making strides in areas previously considered unattainable within gene therapy. The company is expanding its offerings not only in neuromuscular disorders but also into cardiology and immunology.

Frequently Asked Questions

What is del-brax?

Del-brax is an investigational therapy targeting the underlying causes of Facioscapulohumeral Muscular Dystrophy (FSHD).

What were the results of the FORTITUDE study?

The FORTITUDE study showed significant improvements in functional mobility and muscle strength for participants receiving del-brax compared to those on placebo.

How does del-brax work?

Del-brax works by targeting the DUX4 gene, which is responsible for the symptoms of FSHD, and aims to reduce its harmful effects at the genetic level.

What is the next step for Avidity after these trial results?

Avidity plans to pursue an accelerated BLA submission for del-brax and has initiated a Phase 3 trial to further assess its efficacy.

How many people are impacted by FSHD?

FSHD affects approximately 45,000 to 87,000 individuals in various regions, highlighting the urgent need for effective treatment options.

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