This phase Ib/II trial studies the side effects, best dose, and how well anti-CD3 x anti-EGFR-bispecific antibody armed activated T-cells (EGFR BATs) work in treating participants with pancreatic cancer that that has spread to nearby tissue or lymph nodes or (locally advanced) that has spread to other parts of the body (advanced). EGFR-BATs is an anti-cancer therapy created from the body's own immune cells (T cells) coated with an experimental drug made up of bispecific antibodies called cetuximab and OKT3. The EGFR-BATs antibody is able to react against pancreatic cancer. It works by seeking out certain tumor cells like on pancreatic tumor cells that have a molecule called epidermal growth factor receptor (EGFR) on their surface. The EGFR-BATs antibody targets the EGFR on the tumor cell and may be able to use the body's own immune system to destroy those tumor cells.
Additional locations may be listed on ClinicalTrials.gov for NCT03269526.
See trial information on ClinicalTrials.gov for a list of participating sites.
PRIMARY OBJECTIVES:
I. Confirm in a phase I (3 to 6 pts) that 8 infusions of up to 10^10 EGFR BATs given twice per week is safe. (Note: The phase I portion of the protocol has now been completed without DLTs).
II. Complete a phase II clinical trial to estimate the clinical efficacy of 8 x 10^10 EGFR BATs administered in either 8 divided doses administered as 8 infusions (twice weekly) of 10^10 cells per infusion (for participants on-study PRIOR TO the approval of protocol version date 10/12/2018) OR 4 divided doses administered as 4 weekly infusions of 2 x 10^10 cells per infusion (for participants on-study FOLLOWING the approval of protocol version date 10/12/2018).
SECONDARY OBJECTIVES:
I. Determine if infusions of EGFR BATs significantly increase cellular or humoral anti-pancreatic cancer (PC) responses by peripheral blood mononuclear cells (PBMC) at different time points after last EGFR BATs infusion and if those responses persist beyond 2 months.
II. Obtain original tumor paraffin blocks prior to treatment and evaluate blocks for CD3, CD4, CD8, PD1/PDL1, monocytes subpopulations, myeloid-derived suppressor cells (MDSC), and cytoplasmic interferon gamma (IFN-gamma) and interleukin 10 (IL-10) by immunohistochemical staining to quantitate type and number of tumor infiltrating lymphocytes (TILs) in the tumor microenvironment to estimate whether the type and number correlate with clinical responses.
III. To determine the progression free survival (PFS).
OUTLINE:
Participants receive chemotherapy per standard of care. Participants then receive EGFR BATs infusion intravenously (IV) 1-2 weeks later over 30 minutes weekly or twice weekly for 4 weeks in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, participants are followed up every 3 months.
Lead OrganizationUniversity of Virginia Cancer Center
Principal InvestigatorTri Minh Le