elahere
mirvetuximab soravtansine-gynx · by immunogen inc
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Overview
Mirvetuximab soravtansine-gynx is a folate receptor alpha (FRα)-directed antibody-drug conjugate (ADC) consisting of three components: 1) an anti-FRα monoclonal antibody of IgG1 subtype 2) the small molecule anti-tubulin agent DM4 (a maytansine derivative) and 3) a linker, sulfo-SPDB (1-(2,5-dioxopyrrolidin-1-yl)oxy-1-oxo-4-(pyridin-2-yldisulfanyl)butane-2-sulfonic acid) that covalently attaches DM4 to the mirvetuximab antibody. Mirvetuximab soravtansine-gynx has an approximate molecular weight of 150 kDa. An average of 3.4 molecules of DM4 are attached to each antibody molecule. Mirvetuximab soravtansine-gynx is produced by chemical conjugation of the antibody and small molecule components. The antibody is produced by mammalian (Chinese hamster ovary) cells, and the small molecule components are produced by chemical synthesis. Mirvetuximab soravtansine-gynx has the following structure: ELAHERE (mirvetuximab soravtansine-gynx) injection is supplied as a sterile, preservative-free, clear to slightly opalescent, colorless solution containing 100 mg/20 mL of mirvetuximab soravtansine-gynx in single-dose vials. Each mL of solution contains 5 mg of mirvetuximab soravtansine-gynx, and glacial acetic acid (0.22 mg), polysorbate 20 (0.1 mg), sodium acetate (0.53 mg), sucrose (90 mg), and Water for Injection. The pH is approximately 5.0. The ELAHERE vial stoppers are not made with…
How to use
Administer ELAHERE as an intravenous infusion only after dilution in 5% Dextrose Injection, USP. ELAHERE is incompatible with normal saline. ( 2.5 ) The recommended dose of ELAHERE is 6 mg/kg adjusted ideal body weight administered as an intravenous infusion every 3 weeks until disease progression or unacceptable toxicity. ( 2.2 ) Premedicate with a corticosteroid, antihistamine, and antipyretic. ( 2.3 ) Premedicate with an antiemetic, ophthalmic topical steroids, and lubricating eye drops. ( 2.3 , 5.1 ) See full Prescribing Information for preparation and administration instructions and dose modifications for adverse reactions. ( 2 ) 2.1 Patient Selection Select patients for the treatment of platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer with ELAHERE based on the presence of FRα tumor expression [see Indications & Usage ( 1 ) and Clinical Studies ( 14 )] using an FDA-approved test. Information on FDA-approved tests for the measurement of FRα tumor expression is available at http://www.fda.gov/CompanionDiagnostics . 2.2 Recommended Dosage The recommended dosage of ELAHERE is 6 mg/kg adjusted ideal body weight (AIBW) administered once every 3 weeks (21-day cycle) as an intravenous infusion until disease progression or unacceptable toxicity [see Dosage and Administration ( 2.5 )]. Dosing based on AIBW reduces exposure variability for patients…
Side effects
The following adverse reactions are discussed elsewhere in the labeling: Ocular Disorders [see Warnings and Precautions ( 5.1 )] . Pneumonitis [see Warnings and Precautions ( 5.2 )] . Peripheral Neuropathy [see Warnings and Precautions ( 5.3 )] . The most common (≥20 %) adverse reactions, including lab abnormalities, were increased aspartate aminotransferase, fatigue, increased alanine aminotransferase, blurred vision, nausea, increased alkaline phosphatase, diarrhea, abdominal pain, keratopathy, peripheral neuropathy, musculoskeletal pain, decreased lymphocytes, decreased platelets, decreased magnesium, decreased hemoglobin, dry eye, constipation, decreased leukocytes, vomiting, decreased albumin, decreased appetite, and decreased neutrophils. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact AbbVie at 1-800-633-9110 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 drug and may not reflect the rates observed in practice. The pooled safety population described in Warnings and Precautions reflect exposure to ELAHERE in 682 patients with epithelial ovarian, fallopian tube, or primary peritoneal cancer at 6 mg/kg AIBW administered…
Warnings
Important safety information
WARNING: OCULAR TOXICITY ELAHERE can cause severe ocular toxicities, including visual impairment, keratopathy, dry eye, photophobia, eye pain, and uveitis [see Warnings and Precautions ( 5.1 ) and Adverse Reactions ( 6.1 )] . Conduct an ophthalmic exam including visual acuity and slit lamp exam prior to initiation of ELAHERE, every other cycle for the first 8 cycles, and as clinically indicated [see Dosage and Administration ( 2.3 )] . Administer prophylactic artificial tears and ophthalmic topical steroids [see Dosage and Administration ( 2.3 ) and Warnings and Precautions ( 5.1 )] . Withhold ELAHERE for ocular toxicities until improvement and resume at the same or reduced dose [see Dosage and Administration ( 2.4 ) and Warnings and Precautions ( 5.1 )] . Discontinue ELAHERE for Grade 4 ocular toxicities [see Dosage and Administration ( 2.4 ) and Warnings and Precautions ( 5.1 )] . WARNING: OCULAR TOXICITY See full prescribing information for complete boxed warning. ELAHERE can cause severe ocular toxicities, including visual impairment, keratopathy, dry eye, photophobia, eye pain, and uveitis. ( 5.1 , 6.1 ) Conduct an ophthalmic exam including visual acuity and slit lamp exam prior to initiation of ELAHERE, every other cycle for the first 8 cycles, and as clinically indicated. ( 2.3 ) Administer prophylactic artificial tears and ophthalmic topical steroids. ( 2.3 , 5.1 )…
Interactions
Strong CYP3A4 Inhibitors: Closely monitor for ELAHERE adverse reactions. ( 7.1 ) 7.1 Effects of Other Drugs on ELAHERE Strong CYP3A4 Inhibitors DM4 is a CYP3A4 substrate. Concomitant use of ELAHERE with strong CYP3A4 inhibitors may increase unconjugated DM4 exposure [see Clinical Pharmacology ( 12.3 )] , which may increase the risk of ELAHERE adverse reactions [see Adverse Reactions ( 6 )] . Closely monitor patients for adverse reactions with ELAHERE when used concomitantly with strong CYP3A4 inhibitors [ see Warnings and Precautions ( 5 ) ] .
May treat
Dosage forms
INJECTABLE
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Frequently asked questions
- What is Elahere?
- Mirvetuximab soravtansine-gynx is a folate receptor alpha (FRα)-directed antibody-drug conjugate (ADC) consisting of three components: 1) an anti-FRα monoclonal antibody of IgG1 subtype 2) the small molecule anti-tubulin agent DM4 (a maytansine derivative) and 3) a linker, sulfo-SPDB (1-(2,5-dioxopyrrolidin-1-yl)oxy-1-oxo-4-(pyridin-2-yldisulfanyl)butane-2-sulfonic acid) that covalently attaches DM4 to the mirvetuximab antibody. Mirvetuximab soravtansine-gynx has an approximate molecular weight of 150 kDa. An average of 3.4 molecules of DM4 are attached to each antibody molecule. Mirvetuximab soravtansine-gynx is produced by chemical conjugation of the antibody and small molecule components. The antibody is produced by mammalian (Chinese hamster ovary) cells, and the small molecule components are produced by chemical synthesis. Mirvetuximab soravtansine-gynx has the following structure: ELAHERE (mirvetuximab soravtansine-gynx) injection is supplied as a sterile, preservative-free, clear to slightly opalescent, colorless solution containing 100 mg/20 mL of mirvetuximab soravtansine-gynx in single-dose vials. Each mL of solution contains 5 mg of mirvetuximab soravtansine-gynx, and glacial acetic acid (0.22 mg), polysorbate 20 (0.1 mg), sodium acetate (0.53 mg), sucrose (90 mg), and Water for Injection. The pH is approximately 5.0. The ELAHERE vial stoppers are not made with…
- What does Elahere treat?
- Elahere (Mirvetuximab Soravtansine-Gynx) is indicated for carcinoma, ovarian epithelial, fallopian tube neoplasms, peritoneal neoplasms, per its drug-label indications. This is general reference, not medical advice.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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