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RecruitingLast updated: 10 July 2026

INTerpath-009: This study is recruiting people with previously untreated non-small cell lung cancer to test if a personalised cancer vaccine plus immunotherapy after surgery can prevent the cancer from returningA Phase 3 Randomized Double-blind Study of Adjuvant Pembrolizumab With or Without V940 in Participants With Resectable Stage II to IIIB (N2) NSCLC Not Achieving pCR After Receiving Neoadjuvant Pembrolizumab With Platinum-based Doublet Chemotherapy (INTerpath-009)

Trial purpose

Medical clipboardCancer treatment

Tumor type

Lung Cancers Lung cancer

Age

People18+

Trial acronym

INTerpath-009

Clinical summary

Summary

The goal of this study is to learn if people who receive a personalised cancer vaccine (called intismeran autogene) and immunotherapy after surgery are cancer-free longer than people who receive a placebo and pembrolizumab.

Researchers want to know if giving intismeran autogene and pembrolizumab after surgery can help prevent the cancer from coming back in people with non-small cell lung cancer (NSCLC) whose tumours did not respond completely to treatment before surgery (neoadjuvant treatment).

Eligible participants will be randomly allocated (by chance) to one of two treatment arms (Experimental Arm or Active Comparator Arm).

Treatment details
Before surgery (neoadjuvant treatment), participants will receive the following every 3 weeks for up to 4 treatment cycles:

  • pembrolizumab immunotherapy IV infusion and
  • standard background chemotherapy (specific drugs to be chosen by your doctor).

Participants will then have a surgical resection (removal) of their cancer.

After surgery (adjuvant treatment), participants will receive:

  • pembrolizumab IV infusion every 6 weeks for up to 7 cycles
  • plus one of the following injections every 3 weeks for up to 9 doses
    • intismeran autogene (experimental group)
    • placebo (active comprator group).

 

Conditions

This trial is treating people with stage II, IIIA or IIIB (N2) non-small cell lung cancer (NSCLC) that is able to be removed with surgery (resectable)

Eligibility

Inclusion

The main inclusion criteria include but are not limited to the following:

  • Has histologically/cytologically confirmed diagnosis of previously untreated and pathologically confirmed resectable clinical Stage II, IIIA, or IIIB (N2) non-small cell lung cancer (NSCLC) [American Joint Committee on Cancer (AJCC) 8th Edition]
  • Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 7 days before the first dose of study intervention
  • Participants who have not achieved a pathological complete response (pCR) following completion of neoadjuvant chemotherapy and pembrolizumab followed by surgery will be eligible
  • Confirmation that epidermal growth factor receptor (EGFR)-directed therapy is not indicated as primary therapy (documentation of absence of tumor-activating EGFR mutations [eg, DEL19 or L858R])
  • Human immunodeficiency virus (HIV)-infected participants must have well controlled HIV on anti-retroviral 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

Exclusion

The main exclusion criteria include but are not limited to the following:

  • Diagnosis of small cell lung cancer (SCLC) or, for mixed tumors, presence of small cell elements, or has a neuroendocrine tumor with large-cell components, or a sarcomatoid carcinoma, or a pancoast tumor
  • Documentation by local test report indicating presence of anaplastic lymphoma kinase (ALK) gene rearrangements
  • Received prior neoadjuvant therapy for their current NSCLC diagnosis
  • Received prior therapy with an anti-programmed cell death 1 (PD-1), anti-programmed cell death ligand 1 (PD-L1), or anti-programmed cell-death ligand 2 (PD-L2) agent, or with an agent directed to another stimulatory or coinhibitory T-cell receptor (eg, cytotoxic T-lymphocyte-associated protein [CTLA-4], OX-40, CD137)
  • Received prior systemic anticancer therapy including investigational agents other than what is specified in this protocol
  • Received prior treatment with a cancer vaccine
  • Received prior radiotherapy within 2 weeks of start of study intervention, or has radiation-related toxicities, requiring corticosteroids
  • Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention

Inclusion

  • Your cancer has not spread to other parts of the body (localised).

Exclusion

  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov, EU Clinical Trials Register *. View further details about this trial on the registry via the links below:

  • NCT06623422 *
  • 2023-506327-29-00 *
  • V940-009; U1111-1293-5814; JRCT2061240105

Trial sponsor

Merck Sharp & Dohme LLC

Scientific Title

A Phase 3 Randomized Double-blind Study of Adjuvant Pembrolizumab With or Without V940 in Participants With Resectable Stage II to IIIB (N2) NSCLC Not Achieving pCR After Receiving Neoadjuvant Pembrolizumab With Platinum-based Doublet Chemotherapy (INTerpath-009)

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