NCT06780085 · Merck Sharp & Dohme LLC
A Study of Investigational Agents in Participants With Previously Treated Stage IV Nonsquamous Non-small Cell Lung Cancer (NSCLC) (MK-3475-01H/KEYMAKER-U01)
What this study is about
Researchers are looking for new ways to treat metastatic nonsquamous non-small cell lung cancer (NSCLC) that has been treated before. Metastatic means the cancer has spread to other parts of the body. Nonsquamous means the cancer did not start in squamous cells, which are flat cells that line the inside of the lungs.
View original scientific description
Researchers are looking for new ways to treat metastatic nonsquamous non-small cell lung cancer (NSCLC) that has been treated before. Metastatic means the cancer has spread to other parts of the body. Nonsquamous means the cancer did not start in squamous cells, which are flat cells that line the inside of the lungs. Standard treatment (usual treatment) for NSCLC is surgery, then immunotherapy with or without chemotherapy after surgery.
Interventions
BIOLOGICAL
Raludotatug Deruxtecan
IV Infusion
BIOLOGICAL
Ifinatamab Deruxtecan
IV Infusion
DRUG
Docetetaxel
IV Infusion
DRUG
5-hydroxytryptamine subtype 3 receptor antagonist
Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion
DRUG
Neurokinin-1 receptor antagonist
Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion
DRUG
Corticosteroid
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
Primary outcome measures
Objective Response Rate (ORR)
Time frame: Up to approximately 81 months
ORR is defined as the percentage of participants with Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1). The percentage of participants who experience CR or PR as assessed by Blinded Independent Central Review (BICR) will be presented.
Percentage of Participants with at Least One Adverse Event (AE)
Time frame: Up to approximately 81 months
An AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment. The percentage of participants who experience an AE will be reported.
Percentage of Participants Who Discontinued Medication Due to an AE
Time frame: Up to approximately 24 months
An AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment. The percentage of participants who discontinue study intervention due to an AE will be reported.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 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-), or c ros oncogene 1 negative (ROS1-) 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 adequat
Where
- Lexington, Kentucky
- Baltimore, Maryland
- Pittsburgh, Pennsylvania
Collaborators
Daiichi Sankyo
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 6, 2026 · Source of record for eligibility and locations