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Closed (no longer recruiting)Last updated: 2 February 2024

MIRASOL: This phase III trial is comparing the safety and effectiveness of a targeted therapy and standard chemotherapy for the treatment of patients with high-grade epithelial ovarian cancer, primary peritoneal or fallopian tube cancerA Randomized, Open-label, Phase 3 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

Clinical summary

Summary

Eligible patients will be randomised to receive mirvetuximab soravtansine (MIRV) or the investigator's choice of chemotherapy (paclitaxel, PEGylated liposomal doxorubicin, or topotecan).

Conditions

This trial is treating patients with high-grade epithelial ovarian cancer, primary peritoneal or fallopian tube cancer.

Cancer

Female Reproductive System Cancers Gynaecological

Age

People18+

Phase

III

Trial Acronym

MIRASOL

More information

Trial Identifiers

Use the hyperlinks, where available to access additional clinical trial information.

Trial sponsor

ImmunoGen, Inc.

Scientific Title

A Randomized, Open-label, Phase 3 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

Eligibility

Inclusion

  1. Female patients ≥ 18 years of age
  2. Patients must have a confirmed diagnosis of high-grade serious epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer

  3. Patients must have platinum-resistant disease:

    1. Patients who have only had 1 line of platinum based therapy must have received at least 4 cycles of platinum, must have had a response (CR or PR) and then progressed between >3 months and ≤ 6 months after the date of the last dose of platinum
    2. Patients who have received 2 or 3 lines of platinum therapy must have progressed on or within 6 months after the date of the last dose of platinum Note: Progression should be calculated from the date of the last administered dose of platinum therapy to the date of the radiographic imaging showing progression. Note: Patients who are platinum-refractory during front-line treatment are excluded
  4. Patients must have progressed radiographically on or after their most recent line of therapy
  5. Patients must be willing to provide an archival tumor tissue block or slides, or undergo procedure to obtain a new biopsy using a low risk, medically routine procedure for IHC confirmation of FRα positivity
  6. Patient's tumor must be positive for FRα expression as defined by the Ventana FOLR1 (FOLR-2.1) CDx assay
  7. Patients must have at least one lesion that meets the definition of measurable disease by RECIST v1.1 (radiologically measured by the Investigator)

  8. Patients must have received at least 1 but no more than 3 prior systemic lines of anticancer therapy, and for whom single-agent therapy is appropriate as the next line of treatment:

    1. Adjuvant ± neoadjuvant considered one line of therapy
    2. Maintenance therapy (eg, bevacizumab, PARP inhibitors) will be considered as part of the preceding line of therapy (ie, not counted independently)
    3. Therapy changed due to toxicity in the absence of progression will be considered as part of the same line (ie, not counted independently)
    4. Hormonal therapy will be counted as a separate line of therapy unless it was given as maintenance
  9. Patient must have an Eastern Cooperative Oncology Group Performance Status (ECOG PS) of 0 or 1

  10. Time from prior therapy:

    1. Systemic antineoplastic therapy (5 half-lives or 4 weeks, whichever is shorter)
    2. Focal radiation completed at least 2 weeks prior to first dose of study drug
  11. Patients must have stabilized or recovered (Grade 1 or baseline) from all prior therapy-related toxicities
  12. Major surgery must be completed at least 4 weeks prior to first dose and have recovered or stabilized from the side effects of prior surgery

  13. Patients must have adequate hematologic, liver and kidney functions defined as:

    1. Absolute neutrophil count (ANC) ≥ 1.5 x 10^9/L (1,500/μL) without G-CSF in the prior 10 days or long-acting WBC growth factors in the prior 20 days
    2. Platelet count ≥ 100 x 10^9/L (100,000/μL) without platelet transfusion in the prior 10 days
    3. Hemoglobin ≥ 9.0 g/dL without packed red blood cell (PRBC) transfusion in the prior 21 days
    4. Serum creatinine ≤ 1.5 x upper limit of normal (ULN)
    5. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3.0 x ULN
    6. Serum bilirubin ≤ 1.5 x ULN (patients with documented diagnosis of Gilbert syndrome are eligible if total bilirubin < 3.0 x ULN
    7. Serum albumin ≥ 2 g/dL
  14. Patients or their legally authorized representative must be willing and able to sign the informed consent form (ICF) and to adhere to the protocol requirements
  15. Women of childbearing potential (WCBP) must agree to use highly effective contraceptive method(s) (as defined in Section 5.9.6 in the protocol) while on study drug and for at least 3 months after the last dose of MIRV or at least 6 months after the last dose of paclitaxel, pegylated liposomal doxorubicin, or topotecan
  16. WCBP must have a negative pregnancy test within 4 days prior to the first dose of study drug

Exclusion

  1. Patients with endometrioid, clear cell, mucinous, or sarcomatous histology, mixed tumors containing any of the above histologies, or low-grade or borderline ovarian tumor
  2. Patients with primary platinum-refractory disease, defined as disease that did not respond to (CR or PR) or has progressed within 3 months of the last dose of first line platinum-containing chemotherapy
  3. Patients with prior wide-field radiotherapy (RT) affecting at least 20% of the bone marrow
  4. Patients with > Grade 1 peripheral neuropathy per CTCAE v5.0
  5. Patients with active or chronic corneal disorders, history of corneal transplantation, or active ocular conditions requiring ongoing treatment/monitoring such as uncontrolled glaucoma, wet age-related macular degeneration requiring intravitreal injections, active diabetic retinopathy with macular edema, macular degeneration, presence of papilledema, and /or monocular vision

  6. Patients with serious concurrent illness or clinically relevant active infection, including, but not limited to the following:

    1. Active hepatitis B or C infection (whether or not on active antiviral therapy)
    2. HIV infection
    3. Active cytomegalovirus infection
    4. Any other concurrent infectious disease requiring IV antibiotics within 2 weeks before starting study drug Note: Testing at screening is not required for the above infections unless clinically indicated
  7. Patients with history of multiple sclerosis or other demyelinating disease and/or Lambert-Eaton syndrome (paraneoplastic syndrome)

  8. Patients with clinically significant cardiac disease including, but not limited to, any one of the following:

    1. Myocardial infarction ≤ 6 months prior to first dose
    2. Unstable angina pectoris
    3. Uncontrolled congestive heart failure (New York Heart Association > class II)
    4. Uncontrolled ≥ Grade 3 hypertension (per CTCAE)
    5. Uncontrolled cardiac arrhythmias
  9. Patients assigned to PLD stratum only: Left ventricular ejection fraction (LVEF) below the institutional limit of normal as measured by echocardiography (ECHO) or multigated acquisition (MUGA) scan
  10. Patients with a history of hemorrhagic or ischemic stroke within six months prior to randomization
  11. Patients with a history of cirrhotic liver disease (Child-Pugh Class B or C)
  12. Patients with a previous clinical diagnosis of non-infectious interstitial lung disease (ILD), including noninfectious pneumonitis
  13. Patients with required use of folate-containing supplements (eg, folate deficiency)
  14. Patients with prior hypersensitivity to monoclonal antibodies
  15. Women who are pregnant or lactating
  16. Patients with prior treatment with MIRV or other FRα-targeting agents
  17. Patients with untreated or symptomatic central nervous system (CNS) metastases
  18. Patients with a history of other malignancy within 3 years prior to randomization. Note: does not include tumors with a negligible risk for metastasis or death (eg, adequately controlled basal-cell carcinoma or squamous-cell carcinoma of the skin, or carcinoma in situ of the cervix or breast
  19. Prior known hypersensitivity reactions to study drugs and/or any of their excipients
  20. People who are detained through a court or administrative decision, receiving psychiatric care against their will, adults who are the subject of a legal protection order (under tutorship/curatorship), people who are unable to express their consent, and people who are subject to a legal guardianship order
  21. Simultaneous participation in another research study, in countries or localities where this is the health authority guidance

Inclusion

  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria.

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