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A Study of Investigational Agents in Participants With Previously Treated Stage IV Nonsquamous Non-small Cell Lung Cancer (NSCLC) (MK-3475-01H/KEYMAKER-U01)

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment96 people
  • Recruiting US sites4
  • SponsorMerck Sharp & Dohme LLC
  • RegistryNCT06780085

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

A Study of Investigational Agents in Participants With Previously Treated Stage IV Nonsquamous Non-small Cell Lung Cancer (NSCLC) (MK-3475-01H/KEYMAKER-U01): a one-minute explainerNCT067800851 min

Eligibility

Who can join

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:
  • Histologically or cytologically confirmed diagnosis of Stage IV nonsquamous non-small cell lung cancer (NSCLC)
  • Documented disease progression per RECIST 1.1 after receiving an anti-programmed cell death 1 protein (PD-1)/programmed cell death ligand 1 (PD-L1) treatment and platinum-based chemotherapy
  • Confirmation per local test report that epidermal growth factor receptor negative (EGFR-), anaplastic lymphoma kinase negative (ALK-), c ros oncogene 1 negative (ROS1-), or other directed therapy is not indicated as primary therapy
  • Measurable disease per RECIST 1.1 as assessed by investigator and verified by BICR
  • Life expectancy of at least 3 months
  • An Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 assessed within 7 days before randomization
  • Is an individual of any sex/gender who is at least 18 years of age at the time of providing the informed consent
  • Has adequate organ function
  • If capable of producing sperm refrains from donating sperm plus either abstains from penile-vaginal intercourse or uses a penile/external condom, with contraceptive use consistent with local regulations
  • Participant/participants of childbearing potential (POCBP) is not pregnant and has a negative highly sensitive pregnancy test; and is not breastfeeding and uses a highly effective contraceptive method
  • Archival tumor tissue sample of a tumor lesion not previously irradiated has been provided
  • Has provided tissue prior to treatment randomization from a newly obtained formalin-fixed sample from a new biopsy
  • Human Immunodeficiency Virus (HIV)-infected participants must have well controlled HIV on antiretroviral therapy (ART)
  • Participants who are hepatitis B surface antigen (HBsAg) positive 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:
  • Diagnosis of small cell lung cancer or, for mixed tumors, presence of small cell elements
  • Received radiation therapy to the lung
  • Has uncontrolled or significant cardiovascular disorder prior to randomization
  • Has clinically severe pulmonary compromise resulting from intercurrent pulmonary illnesses
  • Participants who have adverse events (AEs) (other than alopecia) due to previous anticancer therapies must have recovered to ≤Grade 1 or baseline
  • Has known severe hypersensitivity (≥Grade 3) to study intervention and/or any of its excipients
  • Has clinically significant corneal disease
  • Has received prior radiotherapy within 2 weeks of start of study intervention, or radiation related toxicities, requiring corticosteroids
  • Has inadequate washout period prior to randomization
  • Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
  • Has diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy
  • Has previously received docetaxel as monotherapy or in combination with other therapies
  • Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration
  • Has known additional malignancy that is progressing or has required active treatment within the past 3 years
  • Has known untreated central nervous system (CNS) metastases and/or carcinomatous meningitis
  • Has evidence of any leptomeningeal disease
  • Has history of interstitial lung disease (ILD)/pneumonitis, current diagnosis of ILD, and/or suspected ILD
  • Has active autoimmune disease that has required systemic treatment in the past 2 years
  • Has active infection requiring systemic therapy
  • HIV-infected participants with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease
  • Has active inflammatory bowel disease requiring immunosuppressive medication or previous clear history of inflammatory bowel disease
  • Has known history of, or active, neurologic paraneoplastic syndrome
  • Has history of allogeneic tissue/solid organ transplant
  • Have not adequately recovered from major surgery or have ongoing surgical complications

The treatment

How it is intended to work

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

raludotatug deruxtecan. An antibody-drug conjugate (ADC) composed of a humanized immunoglobulin G1 (IgG1) monoclonal antibody against the tumor-associated antigen (TAA) cadherin-6 (CDH6; CDH-6) conjugated to deruxtecan, which is comprised of an enzymatically cleavable tetrapeptide-based linker and MAAA-1181a (DXd), the cytotoxic DNA topoisomerase I inhibitor derivative of exatecan, with potential antineoplastic activity. Upon administration of raludotatug deruxtecan, raludotatug targets and binds to CDH6-expressing tumor cells. Upon cellular uptake and lysosomal degradation of the linker, DXd targets and binds to DNA topoisomerase I, thereby stabilizing the cleavable complex between topoisomerase I and DNA, resulting in DNA breaks, inhibition of DNA replication and apoptosis. This inhibits the proliferation of CDH6-expressing tumor cells. CDH6, a member of the cadherin family and overexpressed by a variety of cancers, plays a key role in tumor cell proliferation. NCI Drug Dictionary

ifinatamab deruxtecan. An antibody-drug conjugate (ADC) composed of a humanized monoclonal antibody against the immunoregulatory protein B7-homologue 3 (B7-H3, CD276) conjugated, via an enzymatically cleavable tetrapeptide-based linker, to the cytotoxic DNA topoisomerase I inhibitor and exatecan (DX-8951) derivative DXd (MAAA-1181a; MAAA-1181), with potential antineoplastic activity. Upon administration of the anti-B7-H3/DXd ADC DS-7300a, the anti-B7-H3 antibody targets and binds to B7-H3-expressing tumor cells. Upon cellular uptake and lysosomal degradation of the linker, DXd targets and binds to DNA topoisomerase I, thereby stabilizing the cleavable complex between topoisomerase I and DNA, resulting in DNA breaks, inhibition of DNA replication and apoptosis. This inhibits the proliferation of B7-H3-expressing tumor cells. B7-H3, a type I transmembrane protein and a member of the B7 co-stimulatory protein superfamily, is overexpressed on certain tumor cell types and on various immune cells. It plays a key role in tumor growth and immune responses. The ADC allows for reduced systemic exposure and enhanced delivery of the cytotoxic agent DXd. NCI Drug Dictionary

Treatments listed in the registry

  • Raludotatug Deruxtecan (Biological): IV Infusion
  • Ifinatamab Deruxtecan (Biological): IV Infusion
  • Docetetaxel (Drug): IV Infusion
  • 5-hydroxytryptamine subtype 3 receptor antagonist (Drug): Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion
  • Neurokinin-1 receptor antagonist (Drug): Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion
  • Corticosteroid (Drug): Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion, and for 3 days starting 1 day prior to docetaxel administration

The study

Treatment groups

Randomized · Parallel · masking: Single

Raludotatug Deruxtecan (Experimental)

Participants receive raludotatug deruxtecan (R-DXd) 5.6 mg/kg via intravenous (IV) Infusion every 3 weeks (q3w) until disease progression or discontinuation criterion is met.

Ifinatamab Deruxtecan (Experimental)

Participants receive ifinatamab deruxtecan (I-DXd) 12 mg/kg via IV infusion q3w until disease progression or discontinuation criterion is met.

Docetetaxel (Active Comparator)

Participants receive docetaxel 75mg/m2 via IV infusion q3w until disease progression or discontinuation criterion is met.

Goals

What the study measures

Main goals

  • Objective Response Rate (ORR) (Up to approximately 81 months)
  • Percentage of Participants with at Least One Adverse Event (AE) (Up to approximately 81 months)
  • Percentage of Participants Who Discontinued Medication Due to an AE (Up to approximately 24 months)

Other goals

  • Duration of Response (DOR)
  • Progression-free Survival (PFS)
  • Overall Survival (OS)

Planned enrollment: 96 (estimated).

Where

Recruiting US sites

  • University of Kentucky Chandler Medical Center ( Site 0019), Lexington, Kentucky
  • MedStar Franklin Square Medical Center ( Site 0033), Baltimore, Maryland
  • AHN Cancer Institute - Allegheny General ( Site 9501), Pittsburgh, Pennsylvania
  • Texas Oncology - DFW ( Site 8003), Dallas, Texas

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

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Oct 26, 2026. Public record; not medical advice.

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