MIRVETUXIMAB SORAVTANSINE-GYNX INJ,SOLN
Clinical Criteria Summary
Document 725
Exclusion Criteria
- Moderate to severe hepatic impairment defined total bilirubin > 1.5x Upper Limit of Normal (unless Gilbert syndrome with total bilirubin > 3x Upper Limit of Normal)
- Severe renal impairment (estimated CrCl 15-30 ml/min)
- Active or chronic corneal or ocular conditions requiring ongoing treatment
- Peripheral neuropathy > Grade 1
- Non-infectious interstitial lung disease, including pneumonitis
- Active or uncontrolled infection
- Unmanageable drug interaction identified
- Known pregnancy
- Lactating
Inclusion Criteria
- Diagnosis of epithelial ovarian, fallopian tube or primary peritoneal cancer
- Received at least one prior systemic therapy
- Disease considered platinum-resistant
- Tumor is folate receptor-alpha (FRα) positive (> 75% viable tumor cells with mod (2+) or strong (3+) staining intensity)
- Use of mirvetuximab is as monotherapy or in combination with bevacizumab (or biosimilar)
- Care provided by a VA/VA Community Care gynecologic oncology or medical oncology provider
- Goals of care and role of Palliative Care consult discussed and documented
- Eastern Cooperative Oncology Group (ECOG) Performance Status 0 – 1
- Baseline ophthalmology exam including visual acuity and slit lamp exam
Additional Inclusion Criteria
- For females who can become pregnant: Counseling provided on potential risks vs benefits of treatment and the use of effective contraception during therapy and for 7 months after stopping treatment.
- For females who are lactating: Breastfeeding/providing breastmilk to an infant is not recommended during therapy and for 1 month after the last dose.
Document 726
Indication & Patient Selection
- FRα positive, platinum-resistant epithelial ovarian, fallopian tube or primary peritoneal cancer in adults
- Patients who have received 1-3 prior systemic treatment regimens
- High FRα expression defined as > 75% viable tumor cells with moderate (2+) or strong (3+) staining intensity
- Patient selection must be based on an FDA-approved test
Dosing & Administration
- Intravenous infusion of 6 mg/kg adjusted ideal body weight every 3 weeks until disease progression or unacceptable toxicity
- Supplied as a single-dose vial (100mg/20 mL) for dilution and intravenous infusion
Safety Monitoring & Precautions
- Ocular toxicity: Premedicate with lubricating eye drops and topical steroid eye drops
- Pneumonitis: Hold therapy for Grade 2 pneumonitis until Grade 1 or lower; discontinue permanently for Grade 3 or 4
- Peripheral neuropathy: Withhold, reduce doses, or discontinue depending on severity
- Embryo-fetal toxicity: Advise patients of fetal risks; persons of reproductive potential must use effective contraception during treatment and for 7 months after the last dose
- Drug interactions: Monitor closely for adverse drug events with strong CYP3A4 inhibitors
Clinical Pathway & Guidelines
- Preferred in platinum-refractory or platinum-resistant disease, but only in patients with FRα expression
- Category 2B recommendation in NCCN Ovarian Cancer Guidelines (useful in certain circumstances)