Phase I/II Clinical Trial Combining hTERT Tumor Vaccine & Autologous T Cells in Patients With Advanced Myeloma

This protocol proposes to combine two different investigational products to test the
hypothesis that autologous T cell therapy can augment the potency of a putative tumor vaccine
post- stem cell transplant, and lead to a myeloma-directed T-cell mediated "graft vs.
myeloma" effect in patients with advance myeloma. The hope is that this combination therapy
approach will result in a more rapid recovery of acquired immunity and consequently increased
cure rates and better clinical outcomes. The two investigational products to be evaluated in
this Phase I/II study include:

1. hTERT Vaccine (the putative tumor vaccine)- a multi-peptide vaccine consisting of 3
peptides against the catalytic subunit of telomerase (hTERT D988Y, I540, and R572Y), 1
survivin peptide (Sur1M2- an antiapoptotic protein), and 1 CMV (cytopeptide (N495).

2. T cell therapy- T-cells isolated from the patient and activated/expanded ex vivo by
antiCD3/28 beads.

This is a two-site study at the University of Pennsylvania and University of Maryland to
recruit a total of fifty-six study patients. The key eligibility criteria are patients who
have systemic or multifocal myeloma requiring autologous stem cell transplantation. After
enrollment, patients will be divided into two arms (A and B) according to their HLA A2 status
(A = HLA A2 +, B = HLA A2-). Patients in ARM A will be initially immunized with the hTERT
vaccine along with a pneumococcal conjugate vaccine (PCV); patients in ARM B will be
initially immunized and given boosters of PCV only. All patients will undergo T-cell harvest,
stem cell mobilization and collection, high-dose chemotherapy, autologous stem cell
transplant (ASCT), and an infusion of expanded T cells at day 2 after ASCT. Patients in ARM A
will then receive three hTERT/PCV vaccine boosters at day 14, 42, and 90 after ASCT.

Each subject must meet ALL of the following criteria during screening to be enrolled in the
study:

1. Written informed consent must be obtained from all patients before entry into the
study

2. Patients must have a diagnosis of myeloma

3. Patients must meet one of the following criteria:

- Myeloma has relapsed, progressed, or failed to respond after at least one prior
course of therapy.

- Myeloma has responded partially to initial therapy but neither a complete nor a
near-complete response has developed after at least 3 cycles or months of initial
therapy.

- Myeloma has high-risk features

4. Patients must have measurable disease on study entry.

5. Patients must be between ages 18-80 (inclusive).

6. Patients should have adequate vital organ function.

7. ECOG performance status 0-2

8. Women of child-bearing potential (WOCBP) and their spouses or partners must be willing
to use adequate contraception for the duration of the active treatment phase of the
study and for at least 4 months after the last dose of chemotherapy. In addition,
contraceptive measures must be continued as long as the patient remains on maintenance
thalidomide in accordance with the STEPS program.

Key Exclusion Criteria

Subjects who meet ANY of the following criteria cannot be enrolled in the study:

1. Pregnant or nursing females

2. HIV, HTLV-1/2 seropositivity

3. Known history of myelodysplasia

4. Known history of chronic active hepatitis or liver cirrhosis (if suspected by
laboratory studies, should be confirmed by liver biopsy).

5. Active Hepatitis B

6. Prior autotransplant or allogeneic transplant

7. More than 4 distinct, prior courses of therapy for myeloma

8. History of severe autoimmune disease requiring steroids or other immunosuppressive
treatments.

9. Active immune-mediated diseases including: connective tissue diseases, uveitis,
sarcoidosis, inflammatory bowel disease, multiple sclerosis.

10. Evidence or history of other significant cardiac, hepatic, renal, ophthalmologic,
psychiatric, or gastrointestinal disease which might increase the risks of
participating in the study

11. Active bacterial, viral or fungal infections.