Onasemnogene Abeparvovec-brve
Generic Name: onasemnogene abeparvovec-brve
Brand Names:
Itvisma
11 DESCRIPTION ITVISMA (onasemnogene abeparvovec-brve) is a suspension of an adeno-associated viral vector-based gene therapy for intrathecal injection. It is a recombinant self-complementary AAV9 containing a transgene encoding the human survival motor neuron (SMN) protein, under the control of a cytomegalovirus enhancer/chickenβactin hybrid promoter. ITVISMA has a nominal concentration of 4 × 10 13 vg/mL.
Overview
11 DESCRIPTION ITVISMA (onasemnogene abeparvovec-brve) is a suspension of an adeno-associated viral vector-based gene therapy for intrathecal injection. It is a recombinant self-complementary AAV9 containing a transgene encoding the human survival motor neuron (SMN) protein, under the control of a cytomegalovirus enhancer/chickenβactin hybrid promoter. ITVISMA has a nominal concentration of 4 × 10 13 vg/mL.
Uses
1 INDICATIONS AND USAGE ITVISMA is indicated for the treatment of spinal muscular atrophy (SMA) in adult and pediatric patients 2 years of age and older with confirmed mutation in survival motor neuron 1 (SMN1) gene. ITVISMA is an adeno-associated virus (AAV) vector-based gene therapy indicated for the treatment of spinal muscular atrophy (SMA) in adult and pediatric patients 2 years of age and older with confirmed mutation in SMN1 gene. ( 1 )
Dosage
2 DOSAGE AND ADMINISTRATION For single-dose intrathecal injection only. ( 2 ) The recommended dose of ITVISMA is 1.2 × 10 14 vector genomes (vg). ( 2.2 ) Administer ITVISMA as an intrathecal bolus injection over approximately 1 to 2 minutes. ( 2.4 ) Postpone ITVISMA in patients with infections until the infection has resolved and the patient is clinically stable. ( 2.1 ) Starting one day prior to ITVISMA injection, administer systemic corticosteroids equivalent to oral prednisolone at 1 mg/kg of body weight per day for a total of 30 days. At the end of the 30-day period, check liver function by clinical examination and by laboratory testing. For patients with unremarkable findings, taper the corticosteroid dose gradually over the next 28 days.
Side Effects
6 ADVERSE REACTIONS The most common adverse reactions that occurred in at least 10% of patients were upper respiratory tract infection, upper gastrointestinal symptoms, pyrexia, and headache. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Novartis Gene Therapies at 1-833-828-3947 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another product and may not reflect the rates observed in practice.
Interactions
7 DRUG INTERACTIONS Adjust patient’s vaccination schedule to accommodate concomitant corticosteroid administration prior to and following ITVISMA injection [see Dosage and Administration (2.1)] . Certain vaccines, such as measles, mumps, and rubella (MMR) and varicella, are contraindicated for patients on a substantially immunosuppressive steroid dose (i.e., ≥ 2 weeks of daily receipt of 20 mg or 2 mg/kg body weight of prednisone or equivalent). Adjust patient’s vaccination schedule to accommodate concomitant corticosteroid administration prior to and following ITVISMA injection. ( 7 )
Warnings
WARNING: SERIOUS LIVER INJURY Acute serious liver injury and elevated aminotransferases can occur with ITVISMA. [see Warnings and Precautions (5.1)] Patients with preexisting liver impairment may be at higher risk. [see Warnings and Precautions (5.1)] Prior to intrathecal injection, assess liver function by clinical examination and laboratory testing. Administer systemic corticosteroid before and after ITVISMA injection. 5 WARNINGS AND PRECAUTIONS Hepatotoxicity: Prior to ITVISMA injection, assess liver function of patients by clinical examination and laboratory testing. Continue to monitor liver function for at least 3 months after injection, and at other times as clinically indicated. ( 2.1 , 2.4 , 5.1 ) Thrombocytopenia: Monitor platelet counts before ITVISMA injection, and at least weekly for the first month and as clinically indicated until platelet counts return to baseline. ( 2.1 , 2.4 , 5.2 ) Peripheral Sensory Neuropathy: Consider complete neurologic evaluation and other testing and/or symptom management based on the patient's clinical presentation. 4 CONTRAINDICATIONS None. None. ( 4 )
Pregnancy
8.1 Pregnancy Risk Summary There are no clinical studies in pregnant women to inform a product-associated risk. There are no available data in animal embryo-fetal development studies with ITVISMA. It is not known whether ITVISMA has the potential to be transferred to the fetus. Therefore, women who are pregnant or desire to become pregnant should only be treated with ITVISMA after a thorough benefit-risk evaluation.
Storage
16 HOW SUPPLIED/STORAGE AND HANDLING 16.1 How Supplied ITVISMA is supplied as a sterile, preservative-free, clear to slightly opaque, colorless to faint white suspension for intrathecal injection. ITVISMA contains 4 × 10 13 vg per mL. Each carton of ITVISMA contains a single-dose vial with an extractable volume of not less than 3 mL, containing 1.2 × 10 14 vg.
Frequently Asked Questions
What is Onasemnogene Abeparvovec-brve used for?▼
1 INDICATIONS AND USAGE ITVISMA is indicated for the treatment of spinal muscular atrophy (SMA) in adult and pediatric patients 2 years of age and older with confirmed mutation in survival motor neuron 1 (SMN1) gene. ITVISMA is an adeno-associated virus (AAV) vector-based gene therapy indicated for the treatment of spinal muscular atrophy (SMA) in adult and pediatric patients 2 years of age and older with confirmed mutation in SMN1 gene. ( 1 )
What are the side effects of Onasemnogene Abeparvovec-brve?▼
6 ADVERSE REACTIONS The most common adverse reactions that occurred in at least 10% of patients were upper respiratory tract infection, upper gastrointestinal symptoms, pyrexia, and headache. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Novartis Gene Therapies at 1-833-828-3947 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another product and may not reflect the rates observed in practice.
Can I take Onasemnogene Abeparvovec-brve during pregnancy?▼
8.1 Pregnancy Risk Summary There are no clinical studies in pregnant women to inform a product-associated risk. There are no available data in animal embryo-fetal development studies with ITVISMA. It is not known whether ITVISMA has the potential to be transferred to the fetus. Therefore, women who are pregnant or desire to become pregnant should only be treated with ITVISMA after a thorough benefit-risk evaluation.
What are the important warnings for Onasemnogene Abeparvovec-brve?▼
WARNING: SERIOUS LIVER INJURY Acute serious liver injury and elevated aminotransferases can occur with ITVISMA. [see Warnings and Precautions (5.1)] Patients with preexisting liver impairment may be at higher risk. [see Warnings and Precautions (5.1)] Prior to intrathecal injection, assess liver function by clinical examination and laboratory testing. Administer systemic corticosteroid before and after ITVISMA injection. 5 WARNINGS AND PRECAUTIONS Hepatotoxicity: Prior to ITVISMA injection, assess liver function of patients by clinical examination and laboratory testing. Continue to monitor liver function for at least 3 months after injection, and at other times as clinically indicated. ( 2.1 , 2.4 , 5.1 ) Thrombocytopenia: Monitor platelet counts before ITVISMA injection, and at least weekly for the first month and as clinically indicated until platelet counts return to baseline. ( 2.1 , 2.4 , 5.2 ) Peripheral Sensory Neuropathy: Consider complete neurologic evaluation and other testing and/or symptom management based on the patient's clinical presentation. 4 CONTRAINDICATIONS None. None. ( 4 )
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.