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Mirvetuximab Soravtansine

Phase 3

Epithelial Ovarian Cancer | Small molecule | Oncology |AbbVie Inc.|Last Updated: Sep 1, 2026

Target and mechanism

Molecular targetFOLR1
Target classBinding Agent
ModalitySmall molecule

Also known as mirvetuximab soravtansine (MIRV; IMGN853)

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials2
Total Enrollment593

FDA Designations

No designations recorded

Clinical trial landscape

Mirvetuximab Soravtansine · 5 trials · 10 indications

Phase 3 1Phase 2 4
NCT04209855A Study of Mirvetuximab Soravtansine vs. Investigator's Choice (IC) of Chemotherapy in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha (FRα) ExpressionEpithelial Ovarian Cancer
COMPLETED453 Analytics
PHASE3COMPLETED
A Study of Mirvetuximab Soravtansine vs. Investigator's Choice (IC) of Chemotherapy in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha (FRα) Expression
Epithelial Ovarian CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression-free Survival (PFS) as Assessed by Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1
From randomization until PD or death, whichever occurred first (up to approximately 36 months)

PFS was defined as the time from randomization until progressive disease (PD) or death whichever occurred first. PD: At least a 20% increase in the sum of the longest diameters (SoD) of target lesion, taken as reference the smallest (nadir) SoD since and including baseline. In addition to the relative increase of 20%, the SoD must also demonstrate an absolute increase of at least 5 millimeters (mm). Unequivocal progression of non-target lesions and appearance of new lesions. Unequivocal progression should not normally trump target lesion status. It must be representative of overall disease status change, not a single lesion increase.

Objective Response (OR) by Independent Central Review (ICR)
Up to Approximately 3 years

OR is defined as the best overall response of radiographic complete response (CR) or partial response (PR) as assessed by ICR using RECIST Version 1.1 criteria, prior to any subsequent anticancer therapy, including interval debulking surgery (IDS).

Randomized Phase 2 Cohort: Percentage of Participants with Grade >= 2 Treatment-Emergent Corneal Adverse Events (AEs)
Up to Approximately 24 months

An AE is any noxious, pathologic, or unintended change in anatomical, physiologic, or metabolic function as indicated by physical signs, symptoms, or laboratory changes occurring in any phase of a clinical study, whether or not considered study drug related.

Randomized Phase 2 Cohort: Percentage of Participants who Achieved Objective response rate (ORR)
Up to Approximately 24 months

ORR is defined as best response of confirmed complete response (CR) or partial response (PR), as assessed by the Investigator according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1).

Hepatic Impairment Cohort: Maximal Concentration (Cmax) of Mirvetuximab Soravtansine
Up to Approximately 24 months

Cmax of MIRV

Hepatic Impairment Cohort: Area Under the Plasma Concentration (AUC) of Mirvetuximab Soravtansine
Up to Approximately 24 months

AUC of MIRV

Hepatic Impairment Cohort: Trough Concentration (Ctrough) of Mirvetuximab Soravtansine
Up to Approximately 24 months

Ctrough of MIRV

Hepatic Impairment Cohort: Volume of Distribution at Steady State (Vss) of Mirvetuximab Soravtansine
Up to Approximately 24 months

Vss) of MIRV

Hepatic Impairment Cohort: Time to Maximal Concentration (Tmax) of Mirvetuximab Soravtansine
Up to Approximately 24 months

Tmax of MIRV

Hepatic Impairment Cohort: Terminal Half-Life (t1/2) of Mirvetuximab Soravtansine
Up to Approximately 24 months

t1/2 of MIRV

Number of Participants With MIRV-related Corneal TEAEs (≥ Grade 2) in Asymptomatic Participants
Cycle 1 Day 1 up to 18 weeks or at the 30-day follow-up visit, whichever is earlier (cycle length = 21 days)

This endpoint will be assessed in the participants receiving MIRV who are asymptomatic .

Overall Response Rate (ORR)
Up to 3 years

ORR following carboplatin plus MIRV combination as measured by the investigator and assessed according to RECIST v1.1, defined as the proportion of confirmed responders (CR or PR) among participants with FRα expression of ≥ 50% o ORR following carboplatin plus MIRV combination will also be measured, as a sensitivity analysis, by a blinded independent central review (BICR) in the same participant population

Secondary Endpoints

Objective Response Rate (ORR), as Assessed by the Investigator Using RECIST v1.1
Up to approximately 36 months
Overall Survival Assessed by the Investigator Using RECIST v1.1
Up to approximately 45 months
Number of Participants Achieving at Least 15 Point Absolute Improvement in the Abdominal/Gastrointestinal (GI) Scale of European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire - Ovarian Cancer Module 28 (QLQ-OV28)
Baseline and Week 8 or 9
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Mirvetuximab SoravtansineEXPERIMENTALParticipants will receive single-agent mirvetuximab soravtansine (MIRV) at 6 milligrams (mg)/kilogram (kg) adjusted ideal body weight (AIBW) administered intravenously (IV) on Day 1 of every 3-week cycle (Q3W).
Investigator's Choice (IC) ChemotherapyACTIVE_COMPARATORParticipants will receive a dose of IC chemotherapeutic agent calculated using body surface area (BSA). Paclitaxel administered at 80 milligrams/square meter (mg/m\^2) as a 1-hour IV infusion on Days 1, 8, 15, and 22 of a 4-week cycle; or topotecan administered at 4 mg/m\^2 over 30 minutes on Days 1, 8, and 15 of a 4-week cycle. Alternatively, topotecan could be administered at 1.25 mg/m\^2 over 30 minutes on Days 1 to 5 of a 3-week cycle; or pegylated liposomal doxorubicin administered at 40 mg/m\^2 as a 1 mg/minute IV infusion on Day 1 of a 4-week cycle. After Cycle 1, if tolerated, pegylated liposomal doxorubicin could be administered as a 1-hour infusion.
Carboplatin + Mirvetuximab SoravtansineEXPERIMENTALParticipants will receive carboplatin in combination with mirvetuximab soravtansine on Day 1 of a 21-day cycle per dose +/- Bevacizumab per investigator's discretion.
Randomized Phase 2 Cohort: Arm AEXPERIMENTALParticipants will receive Mirvetuximab Soravtansine at the standard dose on Day 1 of a 21-day cycle.
Randomized Phase 2 Cohort: Arm BEXPERIMENTALParticipants will receive Mirvetuximab Soravtansine at a lower dose than the standard dose on Day 1 and Day 15 of a 28-day cycle .
Hepatic Impairment Cohort : Mirvetuximab SoravtansineEXPERIMENTALParticipants will receive Mirvetuximab Soravtansine on Day 1 of a 21-day cycle. Different doses will be given to groups of patients to identify a safe and effective dose.
Primary Prophylactic Steroid Eye DropsEXPERIMENTALPrednisolone acetate ophthalmic suspension 1% 6 times daily on Days -1 to 4 and 4 times daily (QID) on Days 5 to 8 of each cycle; Lubricating eye drops QID throughout the entire cycle (doses should follow steroid dosing, when given, by approximately 15 minutes); MIRV 6 milligrams (mg)/kilogram (kg) adjusted ideal body weight (AIBW) every 3 weeks (Q3W) on Day 1 of each cycle. Each cycle length = 21 days.
Primary Prophylactic Vasoconstricting Eye DropsEXPERIMENTALPrimary prophylactic brimonidine tartrate ophthalmic solution eye drops 3 times daily (TID) on Days 1 to 8 of each cycle (vasoconstricting drops should be started on the day of first infusion and should begin before the first infusion on Cycle 1 Day 1); Lubricating eye drops QID throughout the entire cycle (doses should follow brimonidine dosing, when given, by approximately 15 minutes); MIRV 6 mg/kg AIBW Q3W on Day 1 of each cycle. Each cycle length = 21 days.
MIRV + CarboplatinEXPERIMENTALOn Day 1 of every 3-week cycle (Q3W) for 6 cycles, MIRV will be given at the dosage of 6 mg/kg of AIBW along with carboplatin given at area under the AUC5 administered through intravenous (IV) infusion (maximum dosing per National Comprehensive Cancer Network \[NCCN\] guidelines \[NCCN 2021\]). Upon completion of carboplatin plus MIRV treatment, single-agent MIRV will be continued at the tolerated dose on Day 1 Q3W in participants with investigator determined stable disease (SD), complete response (CR) or partial response (PR).

Interventions

NameTypeDescription
Mirvetuximab SoravtansineDRUGMirvetuximab Soravtansine will be administered per dose and schedule specified in the arm.
PaclitaxelDRUGPaclitaxel will be administered per dose and schedule specified in the arm.
TopotecanDRUGTopotecan will be administered per dose and schedule specified in the arm.
Pegylated liposomal doxorubicinDRUGPegylated liposomal doxorubicin will be administered per dose and schedule specified in the arm.
CarboplatinDRUGIntravenous (IV) infusion
BevacizumabDRUGIntravenous (IV) infusion (per investigator's discretion)
Lubricating Eye DropsDRUGLubricating artificial tears should be administered at least 15 minutes after corticosteroid or brimonidine eye drop administration.
Prednisolone acetate ophthalmic suspension 1% eye dropsDRUGSelf-administration of prednisolone acetate ophthalmic suspension 1% eye drops as prescribed by the treating physician.
Brimonidine tartrate ophthalmic solution eye dropsDRUGSelf-administration of brimonidine tartrate ophthalmic solution eye drops as prescribed by the treating physician.
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Eligibility Criteria

Age Range18 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites214

Inclusion Criteria: 1. Female participants ≥ 18 years of age 2. Participants must have a confirmed diagnosis of high-grade serious epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer 3. Participants must have platinum-resistant disease: 1. Participants who have only h...

Countries:United StatesAustraliaBelgiumBulgariaCanadaChinaCzechiaFranceGermanyIsraelItalyNetherlandsPolandPortugalRussiaSerbiaSouth KoreaSpainTaiwanUkraineUnited KingdomIrelandGeorgia
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Recent Changes (Last 90 Days)

LOWSep 1, 2026NCT06890338lastUpdatePostDate: changed
LOWSep 1, 2026NCT06890338lastUpdatePostDate: changed
LOWAug 27, 2026NCT06890338lastUpdatePostDate: changed
LOWAug 27, 2026NCT06890338lastUpdatePostDate: changed
MEDIUMAug 21, 2026NCT06365853Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 21, 2026NCT06365853Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWAug 14, 2026NCT06890338lastUpdatePostDate: changed
LOWAug 14, 2026NCT06890338lastUpdatePostDate: changed
LOWJul 28, 2026NCT06890338lastUpdatePostDate: changed
LOWJul 28, 2026NCT06890338lastUpdatePostDate: changed
LOWJul 20, 2026NCT06890338lastUpdatePostDate: changed
LOWJul 20, 2026NCT06890338lastUpdatePostDate: changed
LOWJun 16, 2026NCT06890338lastUpdatePostDate: changed
LOWJun 16, 2026NCT06890338lastUpdatePostDate: changed
LOWJun 16, 2026NCT06890338lastUpdatePostDate: changed
LOWJun 12, 2026NCT06365853lastUpdatePostDate: changed
LOWJun 12, 2026NCT06365853lastUpdatePostDate: changed

Frequently asked questions about Mirvetuximab Soravtansine

What is Mirvetuximab Soravtansine used for?

Mirvetuximab Soravtansine is an investigational antibody-drug conjugate being studied for the treatment of ovarian cancers, including epithelial ovarian cancer, recurrent ovarian cancer, high-grade ovarian cancer, and advanced high-grade epithelial ovarian cancer. It is being evaluated in patients whose tumors express high levels of folate receptor-alpha (FRα).

How does Mirvetuximab Soravtansine work?

Mirvetuximab Soravtansine is a -mab (antibody) type of therapy. It is designed to target cancer cells that express folate receptor-alpha (FRα), a protein commonly found on ovarian cancer cells. By binding to this receptor, the drug delivers a cytotoxic agent directly to the tumor cells.

Who is developing Mirvetuximab Soravtansine?

Mirvetuximab Soravtansine is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker symbol ABBV. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with ovarian cancer.

What phase is Mirvetuximab Soravtansine in?

Mirvetuximab Soravtansine is currently in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 2 trials are evaluating the drug in patients with recurrent ovarian cancer and platinum-resistant advanced high-grade epithelial ovarian cancer.

What clinical trials is Mirvetuximab Soravtansine in?

Mirvetuximab Soravtansine is being studied in several clinical trials, including NCT05456685, a Phase 2 trial combining the drug with carboplatin in platinum-sensitive epithelial ovarian cancer; NCT06365853, a Phase 2 trial evaluating ocular toxicity in recurrent ovarian cancer; and NCT06682988, a Phase 2 trial in platinum-resistant advanced high-grade epithelial ovarian cancer. A Phase 3 trial, NCT04209855, has been completed.

Is Mirvetuximab Soravtansine the same as Mirvetuximab soravtansine plus Bevacizumab?

Mirvetuximab Soravtansine is also known as mirvetuximab soravtansine (MIRV; IMGN853). The name 'Mirvetuximab soravtansine plus Bevacizumab' refers to a combination regimen that includes Mirvetuximab Soravtansine together with the anti-angiogenic agent Bevacizumab, rather than the drug alone.