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mRNA-4359

Phase 1

Advanced Solid Tumors | RNA therapy | Oncology |Moderna, Inc.|Trials Updated: Jul 14, 2026

mRNA-4359 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2022

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment361

FDA Designations

No designations recorded

mRNA-4359 clinical trials

mRNA-4359 · 1 trial · 1 indication

Phase 1 1
NCT05533697Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint Blockade in Participants With Advanced Solid TumorsAdvanced Solid Tumors
RECRUITING361 Analytics
PHASE1RECRUITING
Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint Blockade in Participants With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics

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 to N/A
SexALL
Healthy VolunteersNo
Study Sites39

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 StatesAustraliaGermanyItalyPolandSpainUnited Kingdom
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Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumors")

Frequently asked questions about mRNA-4359

What is mRNA-4359 used for?

mRNA-4359 is an investigational RNA therapy being studied for the treatment of advanced solid tumors. It is being evaluated in patients with advanced solid tumors, including in combination with immune checkpoint blockade. It is not approved for any indication and remains in clinical development.

Who is developing mRNA-4359?

mRNA-4359 is being developed by Moderna, Inc., which trades on the Nasdaq under the ticker MRNA. Moderna is the sponsor of the clinical program evaluating the candidate in advanced solid tumors.

What phase is mRNA-4359 in?

mRNA-4359 is in Phase 1 clinical development. The program is investigational and has not been approved by the FDA or any other regulatory authority. The single Phase 1 trial is currently recruiting participants.

What clinical trial is mRNA-4359 in?

mRNA-4359 is being studied in the Phase 1 trial NCT05533697, titled a study of mRNA-4359 administered alone and in combination with immune checkpoint blockade in participants with advanced solid tumors. The trial is recruiting, with an estimated enrollment of 361 participants across the United States, Australia, Germany, Italy, Poland, Spain, and the United Kingdom.

Is mRNA-4359 biomarker selected?

Yes, the mRNA-4359 Phase 1 trial NCT05533697 uses biomarker-based selection for enrollment. The study enrolls participants with advanced solid tumors and includes a controlled design, though it is not randomized or double blinded. Participants must be at least 12 years of age.