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Ex Vivo Expansion (ACT-X)

MC240903 Ex Vivo Expansion of Tumor Antigen-Specific T Cells for Adoptive T Cell Therapy

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07137312
Enrollment
24
Registered
2025-08-22
Start date
2025-12-16
Completion date
2028-10-31
Last updated
2026-06-09

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

Conditions

Healthy, Malignant Solid Neoplasm, Solid Tumor

Brief summary

The purpose of this study is to understand how the body's immune cells respond to a new type of vaccine (neoantigen vaccine) designed to help the immune system recognize and fight cancer. To do this, the study team will collect a research specimen from participants to study their immune cells' reactions to the neoantigen vaccine. This research will help researchers learn more about how these vaccines might work to protect or treat against cancer.

Interventions

PROCEDUREBlood Draw

Participants have a standard blood draw or apheresis on study. Some participants may provide a specimen via apheresis one time (the "blood draw group") and then elect to provide a second optional specimen via a standard blood draw (the "apheresis draw group") or vice versa.

PROCEDUREApheresis

Participants have a standard blood draw or apheresis on study. Apheresis is a procedure where blood is drawn from your body, specific components like plasma, platelets, and/or white blood cells are separated out, and the rest of the blood is returned. Some participants may provide a specimen via apheresis one time (the "apheresis group") and then elect to provide a second optional specimen via a standard blood draw (the "blood draw group") or vice versa.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Histologically confirmed current or previous solid malignancy or healthy individuals * Willing to provide mandatory research blood draw or apheresis per protocol * Provide written informed consent * The following laboratory values obtained ≤ 28 days prior to registration * Hemoglobin ≥10.0 g/dl * Absolute neutrophil count (ANC) ≥1500/mm\^3 * Platelet count ≥100,000/mm\^3

Exclusion criteria

* Any of the following prior therapies: * IV antibiotic ≤2 weeks prior to apheresis * Major Surgery ≤4 weeks prior to registration * Received a live vaccine ≤30 days prior to registration * Active hematologic malignancies ≤ 3 years prior to registration * Immunocompromised patients and patients known to be HIV positive and currently receiving antiretroviral therapy * History of active tuberculosis (TB), human immunodeficiency virus (HIV), active hepatitis B (e.g., HBsAg reactive), and/or active hepatitis C infection \[e.g., Hepatitis C Virus (HCV) ribonucleic acid (RNA) qualitative is detected) * Known history of active autoimmune disease that has required systemic treatment in the ≤14 days (i.e., with the use of disease-modifying agents, corticosteroids \>10 mg daily prednisone equivalent, or other immunosuppressive drugs) prior to registration. * NOTE: Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment. Patients with vitiligo, Graves' disease, or psoriasis not requiring systemic treatment within the past 30 days are not excluded. Patients with Celiac disease controlled with diet modification are not excluded. * 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 and toxicity of the prescribed regimens. * Pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Immune effector networksBaseline; up to 3 yearsSpecimen samples obtained by blood draw and/or apheresis will be analyzed to identify immune effector networks that accelerate ex vivo expansion of antigen-specific memory precursor T cells. All tests will be two sided with a p\<0.05 being considered as statistically significant.
Dendritic cell signaling programsBaseline; up to 3 yearsSpecimen samples obtained by blood draw and/or apheresis will be analyzed to define dendritic cell signaling programs that foster generation of polyfunctional, high avidity antigen-specific T cells capable of recognizing naturally processed tumor antigen. All tests will be two sided with a p\<0.05 being considered as statistically significant.
Cytokine capture methodsBaseline; up to 3 yearsSpecimen samples obtained by blood draw and/or apheresis will be analyzed to identify cytokine capture methods for isolation of antigen-specific T cells. All tests will be two sided with a p\<0.05 being considered as statistically significant.

Countries

United States

Contacts

CONTACTClinical Trials Referral Office
mayocliniccancerstudies@mayo.edu855-776-0015
CONTACTCancer Center Clinical Trials
507-293-6386
PRINCIPAL_INVESTIGATORKeith Knutson, PhD

Mayo Clinic

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 10, 2026