6 Intismeran Autogene (V940) Clinical Trials Recruiting Now (June 2026): Personalized Neoantigen mRNA Cancer Vaccine, INTerpath-002 Adjuvant NSCLC, Moderna + Merck

Last updated: June 13, 2026

📌 What's new at ASCO 2026: The Moderna + Merck personalized neoantigen mRNA cancer vaccine V940 (intismeran autogene) moves the story from the 2023 Phase 2b KEYNOTE-942 adjuvant melanoma signal into multiple Phase 3 trials — most prominently INTerpath-002 (NCT06077760, Phase 3, recruiting): adjuvant V940 + pembrolizumab vs pembrolizumab alone in completely resected Stage II, IIIA, or IIIB (N2) non-small cell lung cancer. See the ASCO 2026 wrap-up takeaway #7 for the patient-facing context.

About Intismeran Autogene (V940)

Drug profile:

Intismeran autogene (development codes V940 and mRNA-4157) is an investigational personalized neoantigen mRNA cancer vaccine co-developed by Moderna (mRNA platform) and Merck (combination partner via pembrolizumab / KEYTRUDA). There is no brand name yet — intismeran autogene remains investigational and has no FDA approvals as of June 2026.

Mechanism of action:

V940 is not a one-size-fits-all vaccine. Each patient receives a custom-manufactured mRNA encoding approximately 34 neoantigens specific to their own resected tumor. The workflow: (1) the patient's tumor is sequenced after surgical resection, (2) computational pipelines predict which mutated peptides (neoantigens) are most likely to be presented by that patient's HLA molecules to T cells, (3) a bespoke mRNA encoding approximately 34 of those neoantigens is manufactured for that specific patient, (4) the mRNA is delivered via lipid-nanoparticle injection. In clinical trials V940 is almost always combined with pembrolizumab: the vaccine is designed to prime tumor-specific T cells, and pembrolizumab releases the PD-1 brake so those T cells can attack residual microscopic disease. This is fundamentally different from earlier cancer vaccines that targeted "shared" tumor antigens (NY-ESO-1, MAGE) common across many patients.

Regulatory status:

Active Research Directions in 2026

Trials by Setting

Phase 3 Adjuvant Resected NSCLC (3 recruiting)

Phase 2 Advanced Melanoma (1 recruiting)

Phase 2 Metastatic Squamous NSCLC (1 recruiting)

Phase 2 High-Risk Non-Muscle Invasive Bladder Cancer (1 recruiting)

Showing the V940 / intismeran autogene trials in the ClinTrialFinder corpus as of June 2026. The Phase 2b KEYNOTE-942 (mRNA-4157-P201) adjuvant melanoma trial — the source of the 2023 RFS signal and FDA Breakthrough Therapy Designation — and the confirmatory Phase 3 INTerpath-001 adjuvant resected melanoma trial are not in the corpus because they are not currently recruiting. View the latest intismeran search on ClinicalTrials.gov.

Trials Not Yet Recruiting

No V940 trials are listed as "Not yet recruiting" in our corpus as of June 13, 2026. All six trials above are actively recruiting. New INTerpath programs (planned for additional resected solid tumors per sponsor announcements) will be added when they open enrollment.

Patient Selection and Practical Considerations

Eligibility for V940 trials is driven by surgical and disease-stage criteria rather than a specific biomarker like KRAS or HER2:

Side Effects and Practical Considerations

Safety data to date are largely from the Phase 2b KEYNOTE-942 melanoma trial (V940 + pembrolizumab vs pembrolizumab alone, adjuvant resected high-risk Stage III-IV melanoma). The Phase 3 INTerpath program is still accumulating safety data.

Frequently Asked Questions

What is intismeran autogene (V940 / mRNA-4157)?

Intismeran autogene (development codes V940 and mRNA-4157) is an investigational personalized neoantigen mRNA cancer vaccine co-developed by Moderna and Merck. It is NOT a one-size-fits-all vaccine: each patient receives a custom-manufactured mRNA encoding approximately 34 neoantigens specific to their own resected tumor. Tumor tissue is sequenced after surgery, neoantigens most likely to be presented by that patient's HLA molecules are predicted computationally, and a personalized mRNA is then manufactured. The vaccine is almost always combined with pembrolizumab (KEYTRUDA). The lead clinical signal came from the Phase 2b KEYNOTE-942 / mRNA-4157-P201 trial in adjuvant resected high-risk Stage III-IV melanoma (substantial RFS benefit reported in 2023, FDA Breakthrough Therapy Designation). Intismeran autogene remains investigational and has no FDA approvals as of June 2026.

What cancers and trial settings is V940 being tested in?

Six V940 trials are recruiting in our corpus. Three Phase 3 in NSCLC: INTerpath-002 (NCT06077760, adjuvant V940 + pembrolizumab in resected Stage II-IIIB NSCLC); INTerpath-009 (NCT06623422, adjuvant pembrolizumab ± V940 in Stage II-IIIB patients who did NOT achieve pCR after neoadjuvant pembro + chemo); INTerpath-014 (NCT07513376, adjuvant V940 ± subcutaneous pembrolizumab coformulation in resected high-risk Stage I NSCLC). Three Phase 2: INTerpath-012 (NCT06961006, V940 + pembrolizumab in 1L advanced melanoma); INTerpath-013 (NCT07221474, V940 + pembrolizumab + chemo in 1L metastatic squamous NSCLC); INTerpath-011 (NCT06833073, V940 + BCG in high-risk non-muscle invasive bladder cancer). KEYNOTE-942 and INTerpath-001 adjuvant resected melanoma trials are not in the current corpus because they are not actively recruiting.

How is V940 different from a flu vaccine or other cancer vaccines?

A flu vaccine is one-size-fits-all: every recipient gets the same antigens. V940 is the opposite — it is fully personalized. After surgical resection, the patient's own tumor is sequenced, and computational pipelines predict which neoantigens (mutated peptides unique to that tumor) are most likely to be presented by the patient's HLA molecules to T cells. A bespoke mRNA encoding approximately 34 of those neoantigens is then manufactured for that specific patient — no two patients receive the same vaccine. This is also different from earlier cancer vaccines targeting "shared" tumor antigens (NY-ESO-1, MAGE) common across many patients. V940 is co-developed by Moderna (mRNA platform) and Merck (which contributes pembrolizumab). The biological hypothesis: V940 primes tumor-specific T cells, and pembrolizumab releases the PD-1 brake so those T cells can attack residual microscopic disease after surgery.

What are the main side effects of V940?

From the Phase 2b KEYNOTE-942 melanoma trial (the most extensively reported safety dataset to date), the most common V940-attributed events have been local injection-site reactions, fatigue, and flu-like symptoms (chills, fever, headache, myalgias) — the typical mRNA-vaccine pattern. Most events were Grade 1-2 and self-limited. When combined with pembrolizumab, patients also face the standard PD-1 inhibitor immune-related adverse event profile: thyroid dysfunction, pneumonitis, colitis, hepatitis, skin reactions, rare endocrinopathies. The Phase 3 INTerpath program is still accumulating safety data. Patients should expect close monitoring for both vaccine-reactogenicity events and pembrolizumab-class immune-related events.

Find V940 (Intismeran Autogene) and Personalized Cancer Vaccine Trials Matched to Your Situation

Use ClinTrialFinder's AI-powered matching to find V940 (intismeran autogene) trials and other personalized cancer vaccine studies based on your specific cancer, stage, surgical status, and prior treatments.

Find Matching Trials

This page is for information only and is not medical advice. ClinTrialFinder helps you find clinical trials that may match your situation, but enrollment decisions and treatment choices should always be made with your oncologist or healthcare team. Trial eligibility, recruitment status, and treatment details can change — verify directly with the trial sponsor or on ClinicalTrials.gov before acting on any information here.