Mirvetuximab soravtansine, sold under the brand name Elahere, is a medication used as a treatment for epithelial ovarian cancer, fallopian tube cancer, or primary peritoneal cancer.[2][3] Mirvetuximab soravtansine is a folate receptor alpha directed antibody and microtubule inhibitor conjugate.[3][4]
Quick Facts Monoclonal antibody, Type ...
Close
The most common adverse reactions, including laboratory abnormalities, were vision impairment, fatigue, increased aspartate aminotransferase, nausea, increased alanine aminotransferase, keratopathy, abdominal pain, decreased lymphocytes, peripheral neuropathy, diarrhea, decreased albumin, constipation, increased alkaline phosphatase, dry eye, decreased magnesium, decreased leukocytes, decreased neutrophils, and decreased hemoglobin.[3]
Mirvetuximab soravtansine was approved for medical use in the United States in November 2022.[3][5] The US Food and Drug Administration (FDA) considers it to be a first-in-class medication.[6][7]
Mirvetuximab soravtansine is indicated for the treatment of adults with folate receptor alpha (FRα) positive, platinum-resistant epithelial ovarian cancer, fallopian tube cancer, or primary peritoneal cancer, who have received one to three prior systemic treatment regimens.[2][3][4] Recipients are selected for therapy based on an FDA-approved test.[3][4]
Efficacy was evaluated in Study 0417 (NCT04296890), a single-arm trial of 106 participants with FRα positive, platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer.[3] Participants were permitted to receive up to three prior lines of systemic therapy.[3] All participants were required to have received bevacizumab.[3] The trial enrolled participants whose tumors were positive for FRα expression as determined by the above assay.[3] Participants were excluded if they had corneal disorders, ocular conditions requiring ongoing treatment, Grade >1 peripheral neuropathy, or noninfectious interstitial lung disease.[3]
Efficacy was evaluated in Study 0416 (MIRASOL, NCT04209855), a multicenter, open-label, active-controlled, randomized, two-arm trial in 453 participants with platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer.[4] Participants were permitted to receive up to three prior lines of systemic therapy.[4] The trial enrolled participants whose tumors were positive for FRα expression as determined by the VENTANA FOLR1 (FOLR1-2.1) RxDx Assay.[4] Participants were randomized (1:1) to receive mirvetuximab soravtansine-gynx 6 mg/kg (based on adjusted ideal body weight) as an intravenous infusion every 3 weeks or investigator’s choice of chemotherapy (paclitaxel, pegylated liposomal doxorubicin, or topotecan) until disease progression or unacceptable toxicity.[4] The results from this trial satisfy the post-marketing requirement of the previous accelerated approval for mirvetuximab soravtansine-gynx.[4]
- Clinical trial number NCT04296890 for "A Study of Mirvetuximab Soravtansine in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha Expression (SORAYA)" at ClinicalTrials.gov
- Clinical trial number NCT04209855 for "A Study of Mirvetuximab Soravtansine vs. Investigator's Choice of Chemotherapy in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha Expression (MIRASOL)" at ClinicalTrials.gov