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mRNA-4359

Phase 1

Advanced Solid Tumors | Monoclonal antibody | Oncology |Moderna, Inc.|Last Updated: May 28, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment361
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05533697Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint Blockade in Participants With Advanced Solid TumorsPHASE1 RECRUITING 361Sep 1, 2022Feb 18, 2032May 28, 202631 United States, Australia +3
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Study Endpoints
Primary Endpoints
Arms 1a and 1b: Maximum Tolerated Dose (MTD) or Recommended Dose for Expansion (RDE) of mRNA-4359
Days 1-21 (Cycle 1)
Arms 1, 2a, 2b, and 2c: Number of Participants with Dose Limiting Toxicities (DLTs)
Days 1-21 (Cycle 1)
Arms 1, 2a, 2b, and 2c: Number of Participants with Adverse Events (AEs), AE of Special Interest (AESIs), and Serious AEs (SAEs)
Up to 27 months
Arm 2d: Objective Response Rate (ORR) Based on Blinded Independent Central Review (BICR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1)
Day 1 up to 60 months
Secondary Endpoints
Arms 1, 2a, 2b, and 2c: ORR Based on Investigator Assessment Per RECIST v1.1
Day 1 up to 27 months
Arms 1, 2a, 2b, and 2c: Disease Control Rate (DCR) Based on Investigator Assessment Per RECIST v1.1
Day 1 up to 27 months
Arms 1, 2a, 2b, and 2c: Duration of Response (DOR) Based on Investigator Assessment Per RECIST v1.1
Day 1 up to 27 months
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1a (Dose Escalation): mRNA-4359 AloneEXPERIMENTALAdult participants with locally advanced or metastatic cancer will be administered mRNA-4359 at an applicable dose as monotherapy.
Arm 1b (Dose Confirmation): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALParticipants with locally advanced or metastatic, and checkpoint inhibitor (CPI) refractory melanoma or locally advanced or metastatic, and CPI refractory non-small-cell lung carcinoma (NSCLC) will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Arm 1b (Melanoma Expansion Cohort): mRNA-4359 in Combination With PembrolizumabEXPERIMENTALParticipants 18 years or older with CPI refractory, advanced/metastatic melanoma with a programmed cell death ligand-1 (PD-L1) tumor proportion score (TPS) of ≥1% who have had progression on at least 1 prior CPI-based systemic therapy in the advanced/metastatic disease setting will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Arm 2a (Dose Expansion): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALAdult participants with locally advanced or metastatic melanoma who have not yet received any prior systemic therapy for their melanoma in this setting will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Arm 2b (Dose Expansion): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALAdult participants with locally advanced or metastatic NSCLC with a PD-L1 TPS of ≥50%, with no known epidermal growth factor receptor (EGFR)- or anaplastic lymphoma kinase (ALK)-positive tumor mutations who have not yet received any prior systemic therapy for their NSCLC will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Arm 2c (Dose Expansion): mRNA-4359 in Combination with Ipilimumab and NivolumabEXPERIMENTALAdult participants with locally advanced or metastatic melanoma who have not yet received any prior systemic therapy in this setting will be administered mRNA-4359 at an applicable dose in combination with ipilimumab and nivolumab.
Arm 2d (Dose Expansion): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALParticipants 12 years or older with CPI refractory, advanced/metastatic melanoma with a PD-L1 TPS of ≥1% who have had progression on at least 1 prior CPI-based systemic therapy in the advanced/metastatic disease setting will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Pharmacodynamic (PD) Arm (Group 1): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALParticipants with locally advanced or metastatic, and CPI refractory melanoma will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
PD Arm (Group 2): mRNA-4359 in Combination with PembrolizumabEXPERIMENTALParticipants with locally advanced or metastatic, and CPI refractory NSCLC with a PD-L1 TPS ≥1% will be administered mRNA-4359 at an applicable dose in combination with pembrolizumab.
Interventions
NameTypeDescription
mRNA-4359BIOLOGICALIntramuscular Injection
PembrolizumabBIOLOGICALIntravenous infusion
IpilimumabBIOLOGICALIntravenous infusion
NivolumabBIOLOGICALIntravenous infusion
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Eligibility Criteria
Age Range12 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites31

Key Inclusion Criteria: * Males or females ≥18 years of age who have provided written informed consent prior to completing any study-specific procedure. For Arm 2d, participants ≥12 years are eligible with informed consent/assent. * Dose Escalation (Arm 1a): Participant has histologically confirmed...

Countries:United StatesAustraliaItalySpainUnited Kingdom
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT05533697lastUpdatePostDate: changed
LOWMay 29, 2026NCT05533697lastUpdatePostDate: changed
LOWMay 29, 2026NCT05533697lastUpdatePostDate: changed
LOWMay 26, 2026NCT05533697primaryCompletionDate: changed
LOWMay 24, 2026NCT05533697studyFirstPostDate: changed