Recent Updates
Recently added Catalysts

mRNA-4359

Phase 1

Advanced Solid Tumors | Monoclonal antibody | Oncology |Moderna, Inc.|Last Updated: Jul 14, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials1
Total Enrollment361

FDA Designations

No designations recorded

Clinical trial landscape

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
Unlock Study Endpoints

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
Unlock Study Design Details

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
Unlock Eligibility Criteria

Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumors")

Recent Changes (Last 90 Days)

LOWJul 14, 2026NCT05533697lastUpdatePostDate: changed
LOWJul 14, 2026NCT05533697lastUpdatePostDate: changed
LOWJun 23, 2026NCT05533697lastUpdatePostDate: changed
LOWJun 23, 2026NCT05533697lastUpdatePostDate: changed

Frequently asked questions about mRNA-4359

What is mRNA-4359 used for?

mRNA-4359 is an investigational therapy being studied for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development and has not been approved by regulatory authorities. The drug is being evaluated in a clinical trial that includes participants with advanced solid tumors.

Who makes mRNA-4359?

mRNA-4359 is being developed by Moderna, Inc., a biotechnology company traded on the Nasdaq under the ticker symbol MRNA. The company is conducting a Phase 1 clinical trial of the drug in patients with advanced solid tumors.

What phase is mRNA-4359 in?

mRNA-4359 is in Phase 1 clinical development. It is an investigational drug, meaning it has not yet been approved for commercial use. The ongoing Phase 1 trial is recruiting participants with advanced solid tumors to evaluate the drug's safety and efficacy.

What clinical trials is mRNA-4359 in?

mRNA-4359 is being studied in a Phase 1 clinical trial registered as NCT05533697. The trial is titled 'Study of mRNA-4359 Administered Alone and in Combination With Immune Checkpoint Blockade in Participants With Advanced Solid Tumors' and is currently recruiting participants in the United States, Australia, Germany, Italy, Poland, Spain, and the United Kingdom.

Is mRNA-4359 being tested in combination with other therapies?

Yes, mRNA-4359 is being studied both alone and in combination with immune checkpoint blockade in a Phase 1 clinical trial for advanced solid tumors. The trial is designed to evaluate the drug's safety and efficacy in these treatment settings.