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Orchard Therapeutics Moves Closer to a Breakthrough Treatment for MLD

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Orchard Therapeutics, a global leader in gene therapy, has recently made significant strides in the development of a treatment for metachromatic leukodystrophy (MLD). Here’s a detailed summary of the press release:

Key Developments:

  • Priority Review Granted: The U.S. Food and Drug Administration (FDA) has accepted Orchard Therapeutics’ Biologics License Application (BLA) for OTL-200, a potential treatment for MLD. This application has been granted Priority Review, indicating its significance and potential impact.
  • PDUFA Date Announced: The Prescription Drug User Fee Act (PDUFA) goal date has been set for March 18, 2024. This date is crucial as it marks the FDA’s target decision date for the approval of OTL-200.
  • Potential First Treatment: If approved, OTL-200 would become the first and only treatment available in the U.S. for early-onset MLD. This is a significant milestone, given the severe impact of MLD on affected individuals and the lack of current treatment options.

Insights from Orchard Therapeutics:

Bobby Gaspar, M.D., Ph.D., co-founder and CEO of Orchard Therapeutics, expressed the company’s commitment to addressing the urgent needs of MLD patients. He highlighted the challenges faced by patients and their families due to the lack of effective treatments and emphasized the company’s dedication to making OTL-200 available as swiftly as possible.

Clinical Development:

The BLA for OTL-200 is grounded in data from 39 pediatric patients with early-onset MLD. These patients were part of two clinical studies or were treated under expanded access frameworks. The treatment demonstrated the preservation of motor function and cognitive development in most patients, with some being monitored for up to 12 years. Importantly, OTL-200 was generally well-tolerated, with no severe adverse events linked to the treatment.

About MLD:

MLD is a rare, life-threatening inherited disease affecting the body’s metabolic system. It results from a mutation in the arylsulfatase-A (ARSA) gene, leading to sulfatide accumulation in various body parts, including the brain. Over time, this accumulation damages the nervous system, causing a range of neurological issues.

About OTL-200:

OTL-200, also known as Libmeldy, has already been approved by the European Commission for the treatment of MLD in specific patient groups. It is the first therapy approved for early-onset MLD patients in Europe.

Orchard Therapeutics’ Vision:

Orchard Therapeutics aims to end the devastation caused by genetic and other severe diseases. They are pioneering treatments that utilize hematopoietic stem cell (HSC) gene therapy, where a patient’s blood stem cells are genetically modified and reinserted to potentially correct the disease’s underlying cause.

In conclusion, Orchard Therapeutics’ recent announcement marks a significant step forward in the fight against MLD. The acceptance of the BLA for OTL-200 and its Priority Review status highlight the potential of this treatment to change the lives of MLD patients and their families.

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