Phase II Feasibility Study of Dendritic Cell Vaccination for Newly Diagnosed Glioblastoma Multiforme

Two to six weeks after surgery, patients with newly diagnosed glioblastoma multiforme (GBM)
will undergo a six-week course of radiotherapy with concurrent chemotherapy (temozolomide).
Between three and seven weeks after completing radiotherapy/chemotherapy, patients will
undergo leukapheresis to collect white blood cells. These cells will be grown into dendritic
cells, and cultured with tumor cells from the individual patient. Vaccinations will be given
every two weeks for a total of three vaccinations. Four weeks after the third vaccination
patients will resume chemotherapy for one year or until disease progression.

Inclusion Criteria:

- Histologically proven GBM with central pathology review at Dartmouth-Hitchcock Medical
Center (DHMC)

- Tumor specimen obtained at the time of surgery adequate for vaccination

- 18 years of age or older

- Karnofsky Performance Status 60% or greater

- Absolute neutrophil count (ANC) greater than or equal to 1.5 x 10 9th/L

- Platelets greater than or equal to 100 x 10 9th/L

- Aspartate Aminotransferase (AST) or Alanine Aminotransferase (ALT) less than or equal
to 5 times the upper limits of normal (ULN)

- Total bilirubin less than or equal to 1.5 times ULN

- Serum creatinine less than or equal to 1.5 times ULN, OR estimated creatinine
clearance greater than or equal to 60 mL/min

- No known immunosuppression other than chemo-related

- Negative HIV serologies

- No evidence of acute or chronic hepatitis on standard hepatitis C and B screening
tests

- No chemotherapy within four weeks prior to leukapheresis

- Radiotherapy at outside institution is permitted if tissue was obtained at time of
surgery at DHMC and patient is willing to follow-up per protocol

- Off steroids for at least two weeks before leukapheresis

- No second malignancies except non-melanoma skin cancer, and non-invasive cancer such
at cervical CIS, superficial bladder cancer or breast CIS

- Negative serum or urine pregnancy test for women of childbearing potential

- No serious uncontrolled medical disorder or active infection

- All patients must give informed consent

- No history of clinical evidence of active autoimmune disease

Exclusion Criteria:

- Invasive cancers in the past 5 years

- Rheumatologic/autoimmune disease

- Pregnancy or unwillingness to remain on acceptable form of birth control during study

- Major cardiac, pulmonary, or other systemic disease; viral hepatitis; HIV infection