A Randomized Phase I/II Trial Using a GM-CSF-Producing and CD40L-Expressing Bystander Cell Line (GM.CD40L) Vaccine in Combination With CCL21 for Patients With Stage IV Adenocarcinoma of the Lung
A Randomized Phase I/II Trial Using a GM-CSF-Producing and CD40L-Expressing Bystander Cell Line (GM.CD40L) Vaccine in Combination With CCL21 for Patients With Stage IV Adenocarcinoma of the Lung
The purpose of this study is to find out what effects (good and bad) a tumor vaccine used in combination with GM.CD40L and CCL21 have on the patient and their cancer. We also want to find out if the vaccine and the drugs can boost the immune system of these patients and how their immune system reacts, both before and after the vaccine treatment.
The vaccine will be made by mixing two kinds of cells: 1) some lung cancer cells, which have been grown in the lab, and 2) experimental "bystander (present but not taking part in the immune response)" cells. All the cells in the vaccine will be treated with high-dose X-rays to make sure that none of them grow and cause more cancer. The bystander cells are human cells that have been genetically changed to express GM-CSF and CD40L. These are called "GM.CD40L". (That is the original cells, called K562, with the genes for human GM-CSF and CD40L inserted into them). These changes are designed to help boost the participants' immune system to better fight the cancer in their body. GM-CSF is a hormone that is known to stimulate bone marrow to make more white blood cells.
CCL21 is a chemokine (protein) that helps to recruit T cells (a type of white blood cell that helps to protect the body from infections) and leads to hyper-responsive T cells. This leads to heightened immune responses when T cells are exposed to both CCL21 and antigen (a substance that when introduced into the body lead to production of an antibody)-presenting cells (A cell that can "present" antigen in a form that T cells can recognize it ). The induction of a strong cell-mediated immune response is the type of immunity expected to be most involved in controlling cancer cell growth. A randomized trial of a vaccine consisting of the GM.CD40L bystander cells and an equivalent number of allogeneic (taken from different individuals) tumor cells plus or minus CCL21 is proposed.
Inclusion Criteria:
Histologically confirmed metastatic adenocarcinoma of the lung
Patients must have received and completed first line therapy
Eastern Cooperative Oncology Group (ECOG) performance status of 0, or 1
No external beam radiation therapy within 2 weeks of first vaccine administration
No stereotactic radiation therapy within 3 days of first vaccine
No targeted therapy within 2 weeks of first vaccine administration
No immunomodulatory therapy within 2 weeks of first vaccine administration
No chemotherapy within 4 weeks of first vaccine administration
During Screening period, no steroid therapy within 4 weeks of first vaccine administration
Patient's written informed consent
Adequate organ function (measured within a week of beginning treatment):
Patients will be tested for HLA-A0201 as determined by flow cytometry followed by molecular analysis of a peripheral blood specimen; however this result will not be an inclusion criterion.
Measurable metastatic tumor as defined by standard Response Evaluation Criteria In Solid Tumors (RECIST) criteria. Lesions must be accurately measured in at least one dimension with the longest diameter ≥20 mm. With spiral computed tomography (CT) scan, lesion must be ≥10 mm in at least one dimension.
Exclusion Criteria: