NCT06349642 · Mayo Clinic
Immune Checkpoint Inhibitor Response in Solid Tumors Using a Live Tumor Diagnostic Platform
(ELEPHAS-04)
What this study is about
This study is being done to collect tissue samples to test how accurately a tumor response platform, Elephas, can predict clinical response across multiple types of immunotherapies, chemoimmunotherapy and tumor types.
View original scientific description
This study is being done to collect tissue samples to test how accurately a tumor response platform, Elephas, can predict clinical response across multiple types of immunotherapies, chemoimmunotherapy and tumor types.
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
- Subjects must meet one of the following criteria:
- Subjects suspected of or diagnosed with the following Stage IV/metastatic or recurrent malignancies:
- Lung: Non-small Cell Lung Cancer (NSCLC)
- Skin: Cutaneous Malignancy, excluding Uveal Melanoma
- Esophageal Cancer
- Cervical Cancer
- Endometrial Cancer
- Colon Cancer: Mismatch repair deficient (dMMR) CRC only
- All solid tumors with high tumor mutation burden (TMB)
- All solid tumors that are microsatellite instability high (MSI-H)
- All mismatch repair deficient (dMMR) solid tumors
- Liver Cancer
- Any solid tumor with measurable disease that is eligible for pure ICI therapy or that the clinician plans to treat with immune checkpoint inhibitor (ICI) therapy. NOTE: This can be in the setting of a trial, compassionate use, or the use of appropriate laboratory developed tests (LDTs) that, per clinician, render the patient eligible for ICI therapy, either frontline or a later line. OR
- Subjects suspected of or diagnosed with the following Stage III per provider discretion or IV/metastatic malignancies:
- Kidney: Clear Cell Renal Cell Carcinoma (ccRCC)
- Bladder: Urothelial Carcinoma (UC)
- Any solid tumor with measurable disease that is eligible for pure ICI therapy or that the clinician plans to treat with ICI therapy. NOTE: This can be in the setting of a trial, compassionate use, or the use of appropriate LDT tests that per clinician, render the patient eligible for ICI therapy, either frontline or a later line OR
- Patients who will be receiving neoadjuvant CPI for the following resectable early-stage malignancies:
- Breast Cancer: Triple negative breast cancer (TNBC)
- Lung: Non-small cell lung cancer (NSCLC)
- NOTE: Patients with suspected NSCLC who would be eligible for neoadjuvant checkpoint inhibitor (CPI) are eligible to enroll per provider discretion
- Any solid tumor that is eligible for pure ICI therapy or that the clinician plans to treat with ICI therapy. NOTE: This can be in the setting of a trial, compassionate use, or the use of appropriate LDT tests that per clinician, render the patient eligible for ICI therapy, either frontline or a later line
- LOCALLY ADVANCED/METASTATIC PATIENTS: Measurable disease as defined per protocol NOTE: Tumor lesions in a previously irradiated area are not considered measurable disease; Disease that is measurable by physical examination only is not eligible.
- NEOADJUVANT PATIENTS: Subjects must be eligible based on investigator discretion to receive approved CPI therapy.
- Subjects who are newly diagnosed or have suspected cancer must be treatment-naïve at the time of biopsy.
- Subjects who are Stage I, II, or III and have progressed to metastatic cannot have received any anti-cancer treatment for at least 2 - 4 weeks (depending upon the washout period of prior anti-cancer treatment) prior to biopsy as per the agents used.
- ECOG Performance Status (PS) 0, 1 or 2.
- Negative pregnancy test done ≤7 days prior to enrollment, for persons of childbearing potential only
- Female subjects must not be pregnant or breastfeeding and must use appropriate methods of contraception when applicable.
- Subjects must be clinically able, at investigator discretion, and willing to undergo either:
- additional biopsy passes during their standard of care biopsy, OR
- a biopsy for research only, if applicable.
- NOTE: These additional biopsies may either be collected from the primary tumor or a metastatic site amenable to biopsies per the clinician.
- Subjects with a known secondary cancer diagnosis are eligible to participate if participation does not interfere with systemic anti-cancer standard of care treatment for suspected primary diagnosis.
- Provide written informed consent
Exclusion criteria
- Pregnant women because this study involves a greater than minimal risk procedure (biopsy)
- Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety for the biopsy
- Immunocompromised patients and patients known to be HIV positive and currently receiving antiretroviral therapy
- NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial
- Uncontrolled intercurrent illness including, but not limited to:
- ongoing or active infection
- psychiatric illness/social situations that would limit compliance with study requirements
- Subjects who are enrolled or plan to be enrolled in a blinded cancer therapeutic treatment trial
Where
- Phoenix, Arizona
- Jacksonville, Florida
- Rochester, Minnesota
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 Mar 12, 2026 · Source of record for eligibility and locations