Immune Checkpoint Inhibitor Response in Solid Tumors Using a Live Tumor Diagnostic Platform
ELEPHAS-04
Observational Basket Trial to Collect Tissue to Develop and Train a Live Tumor Diagnostic Platform
3 other identifiers
observational
324
1 country
3
Brief Summary
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Apr 2024
Typical duration for all trials
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 1, 2024
CompletedFirst Posted
Study publicly available on registry
April 5, 2024
CompletedStudy Start
First participant enrolled
April 24, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 1, 2027
March 12, 2026
March 1, 2026
3 years
April 1, 2024
March 11, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
Accuracy of the Elephas Score for predicting clinical response in neoadjuvant patients
Assessed based on pathologic complete response (pCR) during checkpoint inhibitor (CPI) treatment. Clinical non-response will be defined as non-pathological complete response. Patients who cannot have pathologic complete response determined will be excluded from the primary analysis.
Up to 3 years
Accuracy of the Elephas Score for predicting clinical response in locally advanced/metastatic patients
Assessed based on Response Evaluation Criteria In Solid Tumors (RECIST) score for best overall response \[complete response (CR) or partial response (PR)\] during checkpoint inhibitor (CPI) treatment. Clinical non-response will be defined as either stable disease (SD) or disease progression (PD). Patients who cannot have best response determined will be excluded from the primary analysis.
Up to 3 years
Study Arms (1)
Observational
Patients undergo tissue biopsy and may optionally undergo blood sample collection and have their medical records reviewed on study. Patients receive standard treatment with checkpoint inhibitors during the study and undergo standard tumor assessments during screening and follow-up.
Interventions
Undergo optional research blood sample.
Tissue specimen collection will be completed with your scheduled standard of care biopsy if possible. If standard of care biopsy is already completed or the research biopsy wasn\'t collected at the time as your standard of care biopsy, then the research biopsy will be scheduled for a different day for research purposes only.
Eligibility Criteria
Patients at Mayo Clinic in Rochester who are suspected of or diagnosed with Stage III or IV/metastatic cancer or receiving neoadjuvant (pre-operative) checkpoint inhibitors (CPI) for a resectable early stage of solid malignancies
You may qualify if:
- 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.
- Subjects suspected of or diagnosed with the following Stage III per provider discretion or IV/metastatic malignancies:
- Kidney: Clear Cell Renal Cell Carcinoma (ccRCC)
- +20 more criteria
You may not qualify if:
- 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
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Mayo Cliniclead
- Elephas Biosciences Corporationcollaborator
Study Sites (3)
Mayo Clinic in Arizona
Phoenix, Arizona, 85054, United States
Mayo Clinic in Florida
Jacksonville, Florida, 32224, United States
Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States
Related Publications (1)
Ramasubramanian TS, Adstamongkonkul P, Scribano CM, Johnson C, Caenepeel S, Hrycyniak LCF, Vedder L, Dana N, Baltes C, Browning T, Chen YI, Dietz T, Flietner E, Kaplewski N, Kellner A, Korrer M, Liu C, Marhefke N, McDonnell P, Nasreen A, Pope V, Prasad A, Richardson J, Schneider S, Schultz M, Sood C, Sunil A, von Euw E, Wait E, Wargowski E, Advani P, Broome B, Bruckbauer A, Godwin A, Kokabi N, Martin R, Robaina M, Toia G, Routh J, Friedl A, Eliceiri K, Szulczewski M, Johnson S, Oliner J, Galon J, Capitini C, Mukhopadhyay D, Taube J, Braun D, Gierman HJ. A live tumor fragment platform to assess immunotherapy response in core needle biopsies while addressing challenges of tumor heterogeneity. bioRxiv [Preprint]. 2025 Jul 18:2025.07.18.663728. doi: 10.1101/2025.07.18.663728.
PMID: 40791544DERIVED
Related Links
Biospecimen
Specimens will only be retained for future research if participant grants permission. Research specimen collection kits for optional blood samples will be created and managed by the Mayo Clinic Biospecimen Accessioning and Processing lab. Research tissue samples will be collected at the time of the patient's standard of care biopsy, or if the standard of care biopsy has already occurred then a research only biopsy will be scheduled.
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Dev Mukhopadhyay, PhD
Mayo Clinic
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 1, 2024
First Posted
April 5, 2024
Study Start
April 24, 2024
Primary Completion (Estimated)
May 1, 2027
Study Completion (Estimated)
May 1, 2027
Last Updated
March 12, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share