A Clinical Study of Intismeran Autogene (V940) and Pembrolizumab (MK-3475) in People With Melanoma (V940-012/INTerpath-012)

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

• Age18 Years to no maximum
• SexAll
• Healthy volunteersNo

You may be able to join if

• The main inclusion criteria include but are not limited to the following:
• Has unresectable and histologically confirmed Stage III or IV cutaneous melanoma per American Joint Committee on Cancer (AJCC) Eighth Edition guidelines.
• Has been untreated for melanoma except if participant received prior adjuvant or neoadjuvant therapy with targeted therapy or immunotherapy (such as anti-cytotoxic T-lymphocyte-associated protein [CTLA-4], anti-programmed cell death 1 protein [PD-1] therapy or interferon), and only if relapse did not occur within 12 months after treatment discontinuation.
• Have documentation of serine/threonine-protein kinase B-raf (BRAF) V600-activating mutation status or had BRAF V600 mutation testing per local institutional standards during the screening period (participants with BRAF mutation positive melanoma as well as BRAF wild-type or unknown are eligible).
• Have the presence of at least 1 measurable lesion by computed tomography (CT) or magnetic resonance imaging (MRI) per Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as determined by the local site investigator/radiology assessment.
• Provides tumor tissue (preferably from a metastatic site and, if not available, from the primary tumor) that is suitable for next generation sequencing and biomarker analysis as required for this study.
• Participants with human immunodeficiency virus (HIV) must have well controlled HIV on antiretroviral therapy (ART).
• Participants who are hepatitis B surface antigen (HBsAg) positive are eligible if they have received hepatitis B virus (HBV) antiviral therapy for at least 4 weeks, and have undetectable HBV viral load prior to randomization.
• Participants with history of hepatitis C virus (HCV) infection are eligible if HCV viral load is undetectable at screening.

You cannot join if

• The main exclusion criteria include but are not limited to the following:
• Has clinically significant heart failure, defined as New York Heart Association class III or IV, within the past 6 months, unless the disease is well controlled in the opinion of the investigator.
• HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease.
• Has ocular or mucosal melanoma.
• Received transfusion of blood products (including platelets or red blood cells) or administration of colony-stimulating factors (including granulocyte colony-stimulating factor, granulocyte macrophage colony-stimulating factor, or recombinant erythropoietin) within 2 weeks of the Screening blood sample (including the blood sample for V940 generation).
• Received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent, or with an agent directed to another stimulatory or coinhibitory T-cell receptor (eg, CTLA-4, lymphocyte activation gene 3 [LAG-3], tumor necrosis factor receptors [OX-40 or CD137]), with some exceptions.
• Received prior systemic anticancer therapy for melanoma before randomization, with some exceptions.
• Received prior radiotherapy within 2 weeks of start of study intervention or has ongoing radiation related toxicities.
• Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention.
• Received prior treatment with another universal or personalized cancer vaccine.

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

pembrolizumab. A humanized monoclonal immunoglobulin (Ig) G4 antibody directed against human cell surface receptor PD-1 (programmed death-1 or programmed cell death-1) with potential immune checkpoint inhibitory and antineoplastic activities. Upon administration, pembrolizumab binds to PD-1, an inhibitory signaling receptor expressed on the surface of activated T cells, and blocks the binding to and activation of PD-1 by its ligands, which results in the activation of T-cell-mediated immune responses against tumor cells. The ligands for PD-1 include programmed cell death ligand 1 (PD-L1), overexpressed on certain cancer cells, and programmed cell death ligand 2 (PD-L2), which is primarily expressed on APCs. Activated PD-1 negatively regulates T-cell activation and plays a key role in in tumor evasion from host immunity. NCI Drug Dictionary

Treatments listed in the registry

• Intismeran autogene (Biological): IM injection
• Pembrolizumab (Biological): IV infusion
• Placebo (Other): IM injection

Randomized · Parallel · masking: Triple

Main goals

• Progression-free Survival (PFS) (Up to approximately 36 months)

Other goals

• Objective Response Rate (ORR)
• Duration of Response (DOR)
• Overall Survival (OS)
• Number of Participants With ≥1 Adverse Event (AE)
• Number of Participants Discontinuing From Study Therapy Due to AE

Planned enrollment: 160 (estimated).

• Highlands Oncology Group ( Site 4042), Springdale, Arkansas
• UCSF Medical Center at Mission Bay ( Site 4044), San Francisco, California
• John Theurer Cancer Center at Hackensack University Medical Center ( Site 4047), Hackensack, New Jersey
• Inova Schar Cancer Institute ( Site 4046), Fairfax, Virginia
• Fred Hutchinson Cancer Center ( Site 4041), Seattle, Washington

33 recruiting sites outside the US. Site status as of Oct 30, 2026. Check the live record before contacting a site.

• ClinicalTrials.gov NCT06961006
• NCI Drug Dictionary: C106432

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Sep 27, 2026. Public record; not medical advice.