Inotuzumab Ozogamicin
Generic Name: inotuzumab ozogamicin
Brand Names:
Besponsa
11. DESCRIPTION Inotuzumab ozogamicin is a CD22-directed antibody and cytotoxic-drug conjugate (ADC) consisting of 3 components: 1) the recombinant humanized immunoglobulin class G subtype 4 (IgG4) kappa antibody inotuzumab, specific for human CD22, 2) N-acetyl-gamma-calicheamicin that causes double-stranded DNA breaks, and 3) an acid-cleavable linker composed of the condensation product of 4-(4'-acetylphenoxy)-butanoic acid (AcBut) and 3-methyl-3-mercaptobutane hydrazide (known as dimethylhydra...
Overview
11. DESCRIPTION Inotuzumab ozogamicin is a CD22-directed antibody and cytotoxic-drug conjugate (ADC) consisting of 3 components: 1) the recombinant humanized immunoglobulin class G subtype 4 (IgG4) kappa antibody inotuzumab, specific for human CD22, 2) N-acetyl-gamma-calicheamicin that causes double-stranded DNA breaks, and 3) an acid-cleavable linker composed of the condensation product of 4-(4'-acetylphenoxy)-butanoic acid (AcBut) and 3-methyl-3-mercaptobutane hydrazide (known as dimethylhydra...
Uses
1. INDICATIONS AND USAGE BESPONSA is indicated for the treatment of relapsed or refractory CD22-positive B-cell precursor acute lymphoblastic leukemia (ALL) in adult and pediatric patients 1 year and older . BESPONSA is a CD22-directed antibody and cytotoxic drug conjugate indicated for the treatment of relapsed or refractory CD22-positive B-cell precursor acute lymphoblastic leukemia (ALL) in adult and pediatric patients 1 year and older. ( 1 )
Dosage
2. DOSAGE AND ADMINISTRATION • Administer by intravenous infusion only. (2.1) • Pre-medicate with a corticosteroid, antipyretic, and antihistamine prior to all infusions. ( 2.2 ) • Dosing regimens for Cycle 1 and subsequent cycles, depending on the response to treatment, are shown below. See full prescribing information for dosing details. ( 2 ) Day 1 Day 8 Day 15 Dosing regimen for Cycle 1 All patients: Dose 0.8 mg/m 2 0.5 mg/m 2 0.5 mg/m 2 Cycle length 21 days For patients who achieve a CR or a CRi, and/or to allow for recovery from toxicity, the cycle length may be extended up to 28 days (i.e., 7-day treatment-free interval starting on Day 21).
Side Effects
6. ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: • Hepatotoxicity, including hepatic VOD (also known as SOS) [see Warnings and Precautions (5.1) ] • Increased risk of post-transplant non-relapse mortality [see Warnings and Precautions (5.2) ] • Myelosuppression [see Warnings and Precautions (5.3) ] • Infusion related reactions [see Warnings and Precautions (5.4) ] • QT interval prolongation [see Warnings and Precautions (5.5) ] The most common (≥ 20%) adverse reactions, including laboratory abnormalities, in adult and pediatric patients are thrombocytopenia, pyrexia, neutropenia, infection, anemia, vomiting, leukopenia, hemorrhage, fatigue, nausea, febrile neutropenia, headache, transaminases increased, abdominal pain, and...
Interactions
7. DRUG INTERACTIONS Drugs That Prolong the QT Interval Concomitant use of BESPONSA with drugs known to prolong the QT interval or induce Torsades de Pointes may increase the risk of a clinically significant QTc interval prolongation [see Clinical Pharmacology (12.2) ] . Discontinue or use alternative concomitant drugs that do not prolong QT/QTc interval while the patient is using BESPONSA. When it is not feasible to avoid concomitant use of drugs known to prolong QT/QTc, obtain ECGs and electrolytes prior to the start of treatment, after initiation of any drug known to prolong QTc, and periodically monitor as clinically indicated during treatment [see Warnings and Precautions (5.5) ] .
Warnings
WARNING: HEPATOTOXICITY, INCLUDING HEPATIC VENO-OCCLUSIVE DISEASE (VOD) (ALSO KNOWN AS SINUSOIDAL OBSTRUCTION SYNDROME) and INCREASED RISK OF POST-HEMATOPOIETIC STEM CELL TRANSPLANT (HSCT) NON-RELAPSE MORTALITY WARNING: HEPATOTOXICITY, INCLUDING HEPATIC VENO-OCCLUSIVE DISEASE (VOD) (ALSO KNOWN AS SINUSOIDAL OBSTRUCTION SYNDROME) and INCREASED RISK OF POST- HEMATOPOIETIC STEM CELL TRANSPLANT (HSCT) NON-RELAPSE MORTALITY See full prescribing information for complete boxed warning. 5. WARNINGS AND PRECAUTIONS • Myelosuppression: Monitor complete blood counts; for signs and symptoms of infection; bleeding/hemorrhage; or other effects of myelosuppression during treatment; manage appropriately. ( 5.3 ) • Infusion related reactions: Monitor for infusion related reactions during and for at least 1 hour after infusion ends. ( 5.4 ) • QT interval prolongation: Obtain electrocardiograms (ECGs) and electrolytes at baseline and monitor during treatment. Monitor more frequently when using concomitant mediations known to prolong QT interval. ( 5.5 ) • Embryo-fetal toxicity: Can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception. 4. CONTRAINDICATIONS None. None ( 4 )
Pregnancy
8.1 Pregnancy Risk Summary Based on its mechanism of action and findings from animal studies [see Clinical Pharmacology (12.1) , Nonclinical Toxicology (13.1) ] , BESPONSA can cause embryo-fetal harm when administered to a pregnant woman . There are no available data on BESPONSA use in pregnant women to inform a drug-associated risk. In rat embryo-fetal development studies, inotuzumab ozogamicin caused embryo-fetal toxicity at maternal systemic exposures that were ≥ 0.4 times the exposure in patients at the maximum recommended dose, based on AUC [see Data ] .
Storage
16. HOW SUPPLIED/STORAGE AND HANDLING How Supplied BESPONSA (inotuzumab ozogamicin) for injection is supplied as a white to off-white lyophilized powder in a single-dose vial for reconstitution and further dilution. Each vial delivers 0.9 mg inotuzumab ozogamicin. Each carton (NDC 0008-0100-01) contains one single-dose vial.
Frequently Asked Questions
What is Inotuzumab Ozogamicin used for?▼
1. INDICATIONS AND USAGE BESPONSA is indicated for the treatment of relapsed or refractory CD22-positive B-cell precursor acute lymphoblastic leukemia (ALL) in adult and pediatric patients 1 year and older . BESPONSA is a CD22-directed antibody and cytotoxic drug conjugate indicated for the treatment of relapsed or refractory CD22-positive B-cell precursor acute lymphoblastic leukemia (ALL) in adult and pediatric patients 1 year and older. ( 1 )
What are the side effects of Inotuzumab Ozogamicin?▼
6. ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: • Hepatotoxicity, including hepatic VOD (also known as SOS) [see Warnings and Precautions (5.1) ] • Increased risk of post-transplant non-relapse mortality [see Warnings and Precautions (5.2) ] • Myelosuppression [see Warnings and Precautions (5.3) ] • Infusion related reactions [see Warnings and Precautions (5.4) ] • QT interval prolongation [see Warnings and Precautions (5.5) ] The most common (≥ 20%) adverse reactions, including laboratory abnormalities, in adult and pediatric patients are thrombocytopenia, pyrexia, neutropenia, infection, anemia, vomiting, leukopenia, hemorrhage, fatigue, nausea, febrile neutropenia, headache, transaminases increased, abdominal pain, and...
Can I take Inotuzumab Ozogamicin during pregnancy?▼
8.1 Pregnancy Risk Summary Based on its mechanism of action and findings from animal studies [see Clinical Pharmacology (12.1) , Nonclinical Toxicology (13.1) ] , BESPONSA can cause embryo-fetal harm when administered to a pregnant woman . There are no available data on BESPONSA use in pregnant women to inform a drug-associated risk. In rat embryo-fetal development studies, inotuzumab ozogamicin caused embryo-fetal toxicity at maternal systemic exposures that were ≥ 0.4 times the exposure in patients at the maximum recommended dose, based on AUC [see Data ] .
What are the important warnings for Inotuzumab Ozogamicin?▼
WARNING: HEPATOTOXICITY, INCLUDING HEPATIC VENO-OCCLUSIVE DISEASE (VOD) (ALSO KNOWN AS SINUSOIDAL OBSTRUCTION SYNDROME) and INCREASED RISK OF POST-HEMATOPOIETIC STEM CELL TRANSPLANT (HSCT) NON-RELAPSE MORTALITY WARNING: HEPATOTOXICITY, INCLUDING HEPATIC VENO-OCCLUSIVE DISEASE (VOD) (ALSO KNOWN AS SINUSOIDAL OBSTRUCTION SYNDROME) and INCREASED RISK OF POST- HEMATOPOIETIC STEM CELL TRANSPLANT (HSCT) NON-RELAPSE MORTALITY See full prescribing information for complete boxed warning. 5. WARNINGS AND PRECAUTIONS • Myelosuppression: Monitor complete blood counts; for signs and symptoms of infection; bleeding/hemorrhage; or other effects of myelosuppression during treatment; manage appropriately. ( 5.3 ) • Infusion related reactions: Monitor for infusion related reactions during and for at least 1 hour after infusion ends. ( 5.4 ) • QT interval prolongation: Obtain electrocardiograms (ECGs) and electrolytes at baseline and monitor during treatment. Monitor more frequently when using concomitant mediations known to prolong QT interval. ( 5.5 ) • Embryo-fetal toxicity: Can cause fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception. 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.