INTerpath-001: Phase 3 study of the mRNA-based individualized neoantigen therapy (INT) intismeran autogene (intismeran) plus pembrolizumab (pembro) vs pembro alone for adjuvant treatment of resected stage IIB-IV melanoma (MEL)
https://esmocongress.esmo.org
ESMO Congress 2026
October 23–27, 2026 · Madrid · 3061 items
INTERPATH-001
★★★Late-breaking54 people · 72 posts · 2 abstracts
Heat trend for this story
Heat now 27·Peak in the comparable set 30 (Oct 25 03:00)·Change over 24h in the comparable set –·Participants now 37
Adjuvant pembrolizumab is already a standard after resection of stage IIB–IV melanoma. KEYNOTE-942 was a randomised phase 2b of individualised neoantigen mRNA (then mRNA-4157 / V940) plus pembrolizumab versus pembrolizumab alone; Lancet 2024 reported recurrence-free survival, not overall survival.[1] A 2026 JCO paper updates that trial at five years.[2] Those are phase-2 numbers, not this phase 3.
INTerpath-001 (NCT05933577) is the phase-3 follow-on, not the same trial: intismeran autogene plus pembrolizumab versus pembrolizumab alone. Floor LBA1 (Presidential I) reports n=1137, RFS hazard ratio 0.58, 2-year RFS 82.2% vs 70.0%; distant metastasis-free survival also met; OS immature. Floor copy says no new safety signals. Full confidence intervals, stage and BRAF strata wait on the slides.
What this adds to 942 is the same combination in 1137 patients, with both RFS and DMFS met. OS is immature; an RFS hazard ratio of 0.58 is not yet a rewrite of adjuvant melanoma care. Manufacturing turnaround and access for individualised mRNA are not in the floor posts. Keep the meeting numbers separate from the 942 papers.
INTerpath-001
https://esmocongress.esmo.orgAdam Feuerstein ✡️@adamfeuerstein #ESMO26 embargo lifted following breach.
ESMO - Eur. Oncology@myESMO Adam Feuerstein ✡️@adamfeuerstein About the intismeran presentation at #ESMO26 $MRNA $MRK
Sumanta K. Pal, MD, FASCO@montypal ★★★Same topic INTERPATH-001 · 54 peopleVOLGADELLPHI-305#INTERPATH-001#VOLGA#DELLPHI-305#DASLHICAP#DRJAMESLARKIN875 views25 likes7 reposts0 repliesMario Balsa@MarioBalsaMD 引用@#ESMO26: The embargo on LBA1, “INTerpath-001: Phase 3 study of the mRNA-based individualised neoantigen therapy intismeran autogene plus pembrolizumab versus pembrolizumab alone for adjuvant treatment of resected stage IIB-IV melanoma”, has been breached. As the data are now publicly available, ESMO has released the information contained in the abstract and has lifted the embargo on the full dataset.
Mario Balsa@MarioBalsaMD 🚨 #ESMO26 | Phase III INTerpath-001 🚨
Dr. Estela Rodriguez@Latinamd 🤷🏽♀️Proof that the market is irrational.
Yago Garitaonaindía@YGaritaonaindia 🚨 #ESMO26 INTerpath-001 leaked before the embargo, so @myESMO released it early
Toni Choueiri, MD@DrChoueiri JNCI@JNCI_Now Interested in context to interpret INTerpath-001 at #ESMO26?
MarioBalsaMD@MarioBalsaMD Same topic INTERPATH-001 · 54 peopleMOIODELLPHI-305HARMONI-GI1KRASCENDO-1CLARITY-GASTRICHERIZON-GEANATALEESAFFRON861 views18 likes6 reposts0 repliesTian Zhang, MD, MHS, FASCO (@tiansterzhangmd.bsky)@TiansterZhang boutrosand@boutrosand Same topic INTERPATH-001 · 54 peopleSTARBOARDNADINALBA12073RO2074ROenfortumabpembrolizumabHBI-8000902 views14 likes6 reposts0 repliesLung Cancer Europe@LungCancerEu The embargo broke before #ESMO26 even opened.
ESMO - Eur. Oncology@myESMO Same topic INTERPATH-001 · 54 peoplepembrolizumab#MRNA-BASED#NEOANTIGENVACCINE#MELANOMA#CLINICALTRIAL#INSIGHTSBYESMO582 views9 likes3 reposts0 repliesOncoAlert@OncoAlert OncoAlert 4Sight Abstracts to be Presented at #ESMO26
Pablo Jiménez@PaulJiL @OncoAlert @brunolarvol @adamfeuerstein
Same topic INTERPATH-001 · 54 people#INTERPATH-001#INTISMERAN#MELANOMA#PRACTICECHANGING611 views5 likes5 reposts1 replyAlfredo Addeo MD@Alfdoc2 🔥 Personalized cancer vaccines delivering impressive results at #ESMO26! @ProfGLongMIA
Same topic INTERPATH-001 · 54 peoplepembrolizumab#MELANOMA#CANCERVACCINES218 views7 likes1 repost0 repliesMartín Angel@Martin_AngelMD KOL Pulse AI@KolPulseAI INTerpath-001 leaked early. @myESMO lifted the embargo. RFS HR 0.58; Moderna −25%.
ozdogan_md@ozdogan_md Same topic INTERPATH-001 · 54 peopleVOLGADELLPHI-305KRASCENDOSAFFRON405 views2 likes3 reposts0 repliesJacob Plieth@JacobPlieth Yüksel Ürün@DrYukselUrun A long-awaited breakthrough in cancer vaccines.
Yakup Ergün@dr_yakupergun #ESMO26 | INTerpath-001: My Personal Perspective Ahead of the Presidential Session
KOL Pulse AI@KolPulseAI 🔥 Melanoma: INTerpath-001 embargo lifts early at ESMO26: RFS HR 0.58, DMFS HR 0.62 (LBA1 abstract)
Same topic INTERPATH-001 · 54 peopleDELLPHI-304NATALEETALENTPANKU-BREAST01SANOLBA1sunvozertinibpembrolizumab238 views2 likes2 reposts0 repliesDr. Estela Rodriguez@Latinamd 引用@So the “not-so-official-anymore“ presentation is in: The melanoma vaccine works. We knew that, 82% recurrence-free at two years vs 70% with immunotherapy alone. It's built individually for each patient, the logistics are enormous: Sequence their tumor, design the vaccine, manufacture it for one person. Weeks of work that will cost a fortune. A treatment like that doesn't scale to most of the world. It scales to countries that can afford a factory run per patient. I live in a country which happens to be able to afford that, most countries can’t. Melanoma kills people everywhere. This will reach a fraction of them. Solving cancer and solving access are two different problems. We just got better at the first one.
Elvina Almuradova@Dr_ElvinaA Dr Rishabh Jain@DrRishabhOnco 🚨 A personalized cancer vaccine just delivered Phase III success!
引用@🚨 ESMO 2026: 15 Trials That Could Change Oncology Practice! From personalized cancer vaccines and bispecific antibodies to next-generation ADCs, major results are coming. 🔥 My Top 15 to Watch: 1. INTerpath-001 | Melanoma 2. SAFFRON | EGFR+ NSCLC 3. Krascendo 1 | KRAS G12C NSCLC 4. DeLLphi-305 | ES-SCLC 5. HARMONi-GI1 | Biliary 6. VOLGA | Bladder 7. DASL-HiCaP | Prostate 8. NATALEE | Breast 9. TRIO-US B-12 TALENT | Breast 10. ENERGIZE | Bladder 11. CLARITY-Gastric 01 | Gastric 12. KEYNOTE-C93 | Endometrial 13. KEYNOTE-B49 | Breast 14. LITESPARK-011 | RCC 15. SigVie-002 | NSCLC 📊 The big question: Which trials will deliver meaningful survival benefits and redefine standards of care? Not every positive trial is practice-changing. 👨⚕️ Oncologists, which trial are you watching most closely? #ESMO26 #Oncology #CancerResearch @ASCO @oncoalert @myesmo @esmo_open
Same topic INTERPATH-001 · 54 peoplepembrolizumab#MELANOMA#CANCERVACCINE165 views2 likes1 repost0 repliesYago Garitaonaindía@YGaritaonaindia 🔥 #ESMO26 INTerpath-001, full data (now yes)
Jacob Plieth@JacobPlieth Does $MRNA $MRK Interpath-001 get the standing ovation at today's #ESMO26 presidential?