Biology:Delandistrogene moxeparvovec

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Short description: Gene therapy medication
Delandistrogene moxeparvovec
Clinical data
Trade namesElevidys
Other namesSRP-9001, delandistrogene moxeparvovec-rokl
License data
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administration
Intravenous
ATC code
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Legal status
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KEGG

Delandistrogene moxeparvovec, sold under the brand name Elevidys, is a recombinant gene therapy used for the treatment of Duchenne muscular dystrophy.[3] It is designed to deliver into the body a gene that leads to production of Elevidys micro-dystrophin that contains selected domains of the dystrophin protein present in normal muscle cells.[3] It is an adeno-associated virus vector-based gene therapy that is given by injection into a vein.[1]

The most commonly reported side effects include vomiting, nausea, acute liver injury, pyrexia (fever), and thrombocytopenia (abnormally low platelet count in the blood).[3]

Delandistrogene moxeparvovec was approved for medical use in the United States in June 2023.[3][4] It was developed by Sarepta Therapeutics and is manufactured by Catalent.[5]

Medical uses

Delandistrogene moxeparvovec is indicated for the treatment of ambulatory children aged four through five years of age with Duchenne muscular dystrophy with a confirmed mutation in the DMD gene.[2][3]

Delandistrogene moxeparvovec is designed to deliver into the body a gene that leads to production of Elevidys micro-dystrophin, a shortened protein (138 kDa, compared to the 427 kDa dystrophin protein of normal muscle cells) that contains selected domains of the dystrophin protein present in normal muscle cells. FDA states that the conditional approval is based on detection of successful gene expression; evidence of clinical improvement is still pending.[3]

History

The accelerated US Food and Drug Administration (FDA) approval of delandistrogene moxeparvovec was based on data from a randomized clinical trial that established that delandistrogene moxeparvovec increased the expression of the Elevidys micro-dystrophin protein observed in delandistrogene moxeparvovec-treated individuals aged four to five years with Duchenne muscular dystrophy.[3]

Society and culture

Economics

Initial pricing was announced at US$3.2 million for a single treatment which is expected to last lifetime.[6]

References

  1. 1.0 1.1 "Elevidys- delandistrogene moxeparvovec-rokl kit". 22 June 2023. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=3525abcd-fbd2-46c5-9706-cffdf2e8a361. 
  2. 2.0 2.1 "Elevidys". U.S. Food and Drug Administration (FDA). 22 June 2023. https://www.fda.gov/vaccines-blood-biologics/tissue-tissue-products/elevidys. 
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 "FDA Approves First Gene Therapy for Treatment of Certain Patients with Duchenne Muscular Dystrophy" (Press release). U.S. Food and Drug Administration (FDA). 22 June 2023. Retrieved 22 June 2023. This article incorporates text from this source, which is in the public domain.
  4. "Sarepta Therapeutics Announces FDA Approval of Elevidys, the First Gene Therapy to Treat Duchenne Muscular Dystrophy" (Press release). Sarepta Therapeutics. 22 June 2023. Retrieved 22 June 2023 – via Business Wire.
  5. "Catalent inks deal to manufacture Sarepta's DMD gene therapy". https://www.fiercepharma.com/manufacturing/catalent-inks-deal-manufacture-sareptas-dmd-gene-therapy. 
  6. "Cambridge biotech Sarepta wins fast-track approval for the first muscular dystrophy gene therapy". The Boston Globe. 22 June 2023. https://www.bostonglobe.com/2023/06/22/business/cambridge-biotech-sarepta-wins-fast-track-approval-first-muscular-dystrophy-gene-therapy/. 

External links

  • Clinical trial number NCT04626674 for "A Gene Transfer Therapy Study to Evaluate the Safety of and Expression From SRP-9001 (Delandistrogene Moxeparvovec) in Participants With Duchenne Muscular Dystrophy (DMD) (ENDEAVOR)" at ClinicalTrials.gov