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Onasemnogene abeparvovec


Generic Medicine Info
Indications and Dosage
Intravenous
Spinal muscular atrophy
Child: For patients with bi-allelic mutation in the survival motor neuron 1 (SMN1) gene and with either a clinical diagnosis of spinal muscular atrophy (SMA) Type 1 or patients with up to 3 copies of the survival motor neuron 2 (SMN2) gene: <2 years 1.1 x 1014 vector genomes/kg as a single dose via slow IV infusion over approx 60 minutes. Refer to specific product guidelines for further information on the recommended dosing values based on weight. Initiate an immunomodulatory regimen 24 hours before the infusion, then continue for ≥30 days to help prevent hepatic toxicity (refer to specific product guidelines for further information on the concomitant therapy).
What are the brands available for Onasemnogene abeparvovec in Hong Kong?
Contraindications
Hypersensitivity.
Special Precautions
Patient with acute hepatic viral illness, concurrent infection. Postpone treatment in patients with active infections until clinically stable or infection has resolved. Hepatic impairment. Infants <2 years.
Adverse Reactions
Significant: Hepatotoxicity manifested by elevated transaminases (e.g. ALT and AST levels); increased cardiac troponin-I levels; increased risk of serious systemic immune response; antibody development.
Gastrointestinal disorders: Vomiting.
General disorders and administration site conditions: Fever.
Potentially Fatal: Acute liver failure and acute serious liver injury; thrombocytopenia, thrombotic microangiopathy, acute kidney injury, microangiopathic haemolytic anaemia.
Monitoring Parameters
Baseline: Monitor liver function (e.g. clinical exam, AST, ALT, total bilirubin, and prothrombin time), CBC (e.g. platelet, Hb), serum creatinine, troponin-I; conduct an anti-adeno-associated virus serotype (AAV9) antibody test. 1st month after treatment: Monitor liver function (same as baseline), platelets; and troponin-I (weekly). Assess for signs and symptoms of thrombotic microangiopathy. 2nd-3rd month after treatment: Monitor liver function (same as baseline) every other week until AST/ALT are <2 times the ULN and clinical exam, prothrombin time, and total bilirubin are normal; platelet count every other week until counts return to baseline; troponin-I monthly until level returns to baseline. Continue to assess for signs and symptoms of thrombotic microangiopathy.
Action
Description:
Mechanism of Action: Onasemnogene abeparvovec, a non-replicating recombinant adeno-associated virus serotype (AAV9) vector, is a gene therapy designed to deliver a functional copy of the gene that encodes the human survival motor neuron (SMN) protein. It provides an alternative source of SMN protein expression, which is expected to stimulate the function and survival of the transduced motor neurons.
Pharmacokinetics:
Distribution: Vector DNA levels are detected in the heart, brain, inguinal lymph node, lung, intestines, kidney, pancreas, peripheral nerves, skeletal muscles, spinal cord, spleen, thymus, and with highest concentrations in the liver.
Excretion: Mainly via faeces; urine and saliva.
Storage
Transport and/or delivery: Store vials at ≤-60°C. Upon receipt: Store vials between 2-8°C for ≤14 days. Do not refreeze.
MIMS Class
Other Drugs Acting on Musculo-Skeletal System
ATC Classification
M09AX09 - onasemnogene abeparvovec ; Belongs to the class of other drugs for disorders of the musculo-skeletal system.
References
Anon. Onasemnogene Abeparvovec. AHFS Clinical Drug Information [online]. Bethesda, MD. American Society of Health-System Pharmacists, Inc. https://www.ahfscdi.com. Accessed 10/09/2024.

Brayfield A, Cadart C (eds). Onasemnogene Abeparvovec. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 10/09/2024.

Novartis New Zealand Limited. Zolgensma Injection for Intravenous Infusion data sheet 7 February 2024. Medsafe. http://www.medsafe.govt.nz. Accessed 10/09/2024.

Onasemnogene Abeparvovec. UpToDate Lexidrug, Lexi-Drugs Multinational Online. Waltham, MA. UpToDate, Inc. https://online.lexi.com. Accessed 10/09/2024.

Zolgensma (Novartis Gene Therapies, Inc.). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed. Accessed 10/09/2024.

Zolgensma Solution for Infusion (Novartis Pharmaceuticals [HK] Ltd). MIMS Hong Kong. http://www.mims.com/hongkong. Accessed 10/09/2024.

Zolgensma Solution for Infusion (Novartis Pharmaceuticals UK Limited). MHRA. https://products.mhra.gov.uk. Accessed 10/09/2024.

Zolgensma Suspension for Intravenous Infusion (Novartis Corporation [Malaysia] Sdn. Bhd.). National Pharmaceutical Regulatory Agency - Ministry of Health Malaysia. https://www.npra.gov.my. Accessed 10/09/2024.

Disclaimer: This information is independently developed by MIMS based on Onasemnogene abeparvovec from various references and is provided for your reference only. Therapeutic uses, prescribing information and product availability may vary between countries. Please refer to MIMS Product Monographs for specific and locally approved prescribing information. Although great effort has been made to ensure content accuracy, MIMS shall not be held responsible or liable for any claims or damages arising from the use or misuse of the information contained herein, its contents or omissions, or otherwise. Copyright © 2025 MIMS. All rights reserved. Powered by MIMS.com
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