NCT06345729 · Merck Sharp & Dohme LLC
A Study of MK-1084 Plus Pembrolizumab (MK-3475) in Participants With KRAS G12C Mutant Non-small Cell Lung Cancer (NSCLC) With Programmed Cell Death Ligand 1 (PD-L1) Tumor Proportion Score (TPS) ≥50% (MK-1084-004/KANDLELIT-004)
What this study is about
This is a study evaluating the effectiveness and safety of MK-1084 with pembrolizumab as first-line treatment in participants with locally advanced or metastatic non-small cell lung cancer (NSCLC) with identified Kirsten rat sarcoma viral oncogene homolog G12C (KRAS G12C) mutation and programmed cell death ligand 1 (PD-L1) tumor proportion score (TPS) ≥50%.
View original scientific description
This is a study evaluating the efficacy and safety of MK-1084 with pembrolizumab as first-line treatment in participants with locally advanced or metastatic non-small cell lung cancer (NSCLC) with identified Kirsten rat sarcoma viral oncogene homolog G12C (KRAS G12C) mutation and programmed cell death ligand 1 (PD-L1) tumor proportion score (TPS) ≥50%.
Interventions
DRUG
Calderasib
Oral tablets
OTHER
Placebo
Oral tablets
BIOLOGICAL
Pembrolizumab
IV infusion
Primary outcome measures
Progression-Free Survival (PFS)
Time frame: Up to approximately 42 months
PFS is defined as the time from randomization until either documented disease progression per Response Criteria in Solid Tumors Version 1.1 (RECIST 1.1) or death due to any cause, whichever occurs first. PFS as determined by blinded independent central review (BICR) will be presented.
Overall Survival (OS)
Time frame: Up to approximately 56 months
OS is defined as the time from randomization to death due to any cause.
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.
Exclusion criteria
- include but are not limited to the following: Inclusion Criteria:
- Has histologically or cytologically confirmed diagnosis of non-small cell lung cancer (NSCLC)
- Has newly diagnosed Stage IIIB/IIIC NSCLC, not eligible for curative resection or curative chemotherapy/radiation as determined by a multidisciplinary tumor board and/or by radiation oncologist, surgeon, and medical oncologist or Stage IV (M1a, M1b, or M1c) by American Joint Committee on Cancer (AJCC) Staging Manual, Version 8
- Provides an archival tumor tissue sample (≤5 years) or newly obtained core, incisional, or excisional biopsy of a tumor lesion not previously irradiated to enable central laboratory testing of kirsten rat sarcoma (KRAS) G12C mutation status, PD-L1 status, and biomarker research
- If have had adverse events (AEs) due to previous anticancer therapies, must have recovered to \< Grade 1 or baseline
- If human immunodeficiency virus (HIV)-infected, must have wel
Where
- Bakersfield, California
- Beverly Hills, California
- Stamford, Connecticut
- Miami Beach, Florida
- Skokie, Illinois
- Kansas City, Missouri
- Springfield, Missouri
- Billings, Montana
- Morristown, New Jersey
- Albany, New York
- Cincinnati, Ohio
- Kettering, Ohio
And 3 more locations — see the full list below.
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 Jun 15, 2026 · Source of record for eligibility and locations