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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)

KEYMAKER-U01 Substudy 01H: A Phase 2, Randomized, Umbrella Study With Rolling Arms of Investigational Agents in Participants With Previously Treated Stage IV Nonsquamous Non-small Cell Lung Cancer (NSCLC)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06780085
Enrollment
96
Registered
2025-01-17
Start date
2025-05-13
Completion date
2032-03-12
Last updated
2026-03-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carcinoma, Non-Small-Cell Lung

Keywords

Programmed Cell Death-1 (PD1, PD-1), Programmed Death-Ligand 1 (PDL1, PD-L1), Programmed Cell Death 1 Ligand 2 (PDL2, PD-L2)

Brief summary

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. Immunotherapy is a treatment that helps the immune system fight cancer. Chemotherapy is a medicine that works to destroy cancer cells or stop them from growing. However, standard treatment may not work or may stop working for some people. Researchers want to know if 2 antibody drug conjugates (ADCs) can help treat metastatic nonsquamous NSCLC that did not respond (get smaller or go away) to treatment. An ADC attaches to specific targets on cancers cells and delivers treatment to destroy those cells. Researchers will compare 2 different ADCs (the study treatments) to chemotherapy in this study. The goals of this study are to learn: * About the safety of the study treatments and if people tolerate them * How many people have the cancer respond to the study treatments

Detailed description

The master screening protocol is MK-3475-U01 (KEYMAKER-U01) - NCT04165798

Interventions

IV Infusion

IV Infusion

DRUGDocetetaxel

IV Infusion

DRUG5-hydroxytryptamine subtype 3 receptor antagonist

Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion

DRUGNeurokinin-1 receptor antagonist

Administered as a rescue medication per approved product label before R-DXd or I-DXd infusion

DRUGCorticosteroid

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

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY
Daiichi Sankyo
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Unblinded open-label

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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-), 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

Exclusion criteria

The main

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)Up to approximately 81 monthsORR 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)Up to approximately 81 monthsAn 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 AEUp to approximately 24 monthsAn 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.

Secondary

MeasureTime frameDescription
Duration of Response (DOR)Up to approximately 81 monthsFor participants who demonstrate a confirmed CR (disappearance of all target lesions) or (at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1, DOR is defined as the time from first documented evidence of CR or PR until progressive disease (PD) or death. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 millimeters (mm). The appearance of one or more new lesions is also considered PD. DOR as assessed by BICR will be presented.
Progression-free Survival (PFS)Up to approximately 81 monthsPFS is defined as the time from randomization to the first documented PD or death due to any cause, whichever occurs first as assessed by RECIST 1.1. PD is defined as ≥20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by BICR will be presented.
Overall Survival (OS)Up to approximately 81 monthsOS is defined as the time from randomization to death due to any cause.

Countries

Chile, Germany, Greece, Hungary, Israel, Italy, Poland, Spain, Turkey (Türkiye), United States

Contacts

CONTACTToll Free Number
Trialsites@msd.com1-888-577-8839
STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026