NCT06075524 · Mayo Clinic
Evaluation of Anti-PD-1 Therapy by Monitoring T Cell Responses in Melanoma, Lung and Other Cancer Types
What this study is about
This study explores the role of T cells in monitoring disease status and response during anti-PD-1/PD-L1 treatment in patients with melanoma, lung and other cancer types. Measuring levels of specific targets such as Bim and soluble PD-L1 during therapy may help track treatment resistance and clinical outcomes.
View original scientific description
This study explores the role of T cells in monitoring disease status and response during anti-PD-1/PD-L1 treatment in patients with melanoma, lung and other cancer types. Measuring levels of specific targets such as Bim and soluble PD-L1 during therapy may help track treatment resistance and clinical outcomes. This information may also help researchers determine why some people with melanoma, lung and other cancer types respond to PD-1/PD-L1 treatment and others do not.
Interventions
PROCEDURE
Biospecimen Collection
Undergo blood and optional stool/tissue sample collection
OTHER
Electronic Health Record Review
Medical records are reviewed
Primary outcome measures
Role of Bim for monitoring disease status during anti-PD-1 therapy
Time frame: Up to 10 samples: at baseline; 6 weeks after initiation of therapy; subsequently at each radiographic tumor assessment (starting at approx. 9-12 weeks) including at confirmed disease progression.
Will be assessed by serial measurements of Bim levels in tumor-reactive CD8+ T cells from the peripheral blood of patients with advanced cancer undergoing therapy with an anti-PD-1 monoclonal antibody and correlate them with clinical outcome.
Mechanisms of resistance to anti-PD-1 blockade
Time frame: Up to 10 samples: at baseline; 6 weeks after initiation of therapy; subsequently at each radiographic tumor assessment (starting at approx. 9-12 weeks) including at confirmed disease progression.
Will be assessed by reviewing blood samples to determine whether high sPD-L1 levels are associated with higher Bim levels in CD11ahigh PD-1+CD8+ T cells and decreased response to single-agent anti-PD1 blocking antibody in patients with cancer.
Quantify and modulate levels of NKG7 mRNA in CD8+ T cells
Time frame: Up to 10 samples: at baseline; 6 weeks after initiation of therapy; subsequently at each radiographic tumor assessment (starting at approx. 9-12 weeks) including at confirmed disease progression.
CD8+ T cells will be isolated from the peripheral blood of patients with advanced cancer, and messenger ribonucleic acid (mRNA) will be isolated. Qualitative and quantitative reverse transcription polymerase chain reaction (RT-PCR) assays will be performed on these samples in order to determine the levels of six different mRNA splice variants of NKG7. Results will be compared to clinical outcome.
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
- Are 18 years of age or older
- Have histologic evidence of locally or regionally advanced or stage IV malignancy
- Are considered appropriate for starting therapy with anti-PD-1/anti-PD-L1 monoclonal antibody by their treating physician (prior therapy with immune checkpoint inhibitor (ICI) is allowed)
- Have an understanding of the protocol and its requirements, risks, and discomforts
- Are willing to undergo peripheral blood collection at the time points mentioned in the protocol
- Are able and willing to sign an informed consent
Exclusion criteria
- Inability on the part of the patient to understand the informed consent or be compliant with the protocol
- Patients receiving any concurrent anti-cancer therapy or investigational agents (with the exception of an anti-PD-1/anti-PD-L1 agent as mentioned above)
- Patients who are pregnant, nursing, or are of childbearing potential and are unwilling to employ adequate contraception
Where
- Rochester, Minnesota
Collaborators
National Cancer Institute (NCI)
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 18, 2026 · Source of record for eligibility and locations