CD19-specific T Cell Infusion in Patients With B-Lineage Lymphoid Malignancies

Study Plan:

This study has 3 steps: chemotherapy, a stem cell transplant, and gene transfer. If the
disease relapses (returns) during the study, you may receive the T-cell infusion without
having a stem cell transplant. Your study doctor will decide if you will receive the stem
cell transplant or not.

The chemotherapy combination in this study (carmustine [BiCNU®], cytarabine [Cytosar-U®],
etoposide [Vepesid®], and melphalan [Alkeran®] is given to try to destroy any remaining tumor
cells and prepare the body for the stem cell transplant and/or T-cell infusion.

If you receive the T cells without transplant, you may receive additional chemotherapy before
the T cell infusion, if your doctor thinks it is needed. Your treating doctor will discuss
these chemotherapy drugs with you, and you may sign an additional consent for those
chemotherapy drugs as standard of care.

A stem cell transplant is designed to help the body attack the cancer cells that may remain
after chemotherapy.

The gene transfer involves drawing blood, separating out T cells, changing the cells' DNA in
the laboratory, and returning the genetically changed cells back to the body. T cells are a
type of white blood cell that fight infection. The type of gene transfer being used in this
study is designed to help your T cells better fight B-cell lymphoma. These genetically
changed T cells are designed to fight B-cell lymphoma by targeting CD19 (a chemical "marker"
that is found on certain B-cell lymphoma cells).

IL-2 (Proleukin®) is designed to help T cells grow. In this study, researchers want to learn
if it can help the genetically changed T cells grow and last longer in the body.

Study Groups:

If you are found to be eligible to take part in this study, you will be assigned to a dose
level of T cells, with or without IL-2, based on when you joined this study.

The first group of participants will receive the lowest dose of T cells. Each new group will
receive a higher dose of T cells than the group before it, if no intolerable side effects
were seen. Up to 4 dose combinations of T cells will be tested.

Tests Before Leukapheresis:

Before each of the 2 leukapheresis procedures (described below), the following tests and
procedures will be performed:

- Blood (about 4 tablespoons) will be drawn and used for routine tests and to look for
diseases such as hepatitis and HIV.

- To check your lung function, you will have breathing tests. A chest X-ray will be
performed to check for infection.

Leukapheresis #1 or Standard Blood Draw (For Collecting T Cells) You will visit the Apheresis
Clinic at MD Anderson to have leukapheresis performed. Leukapheresis is a procedure for
removing blood from the body in order to collect specific blood cells. The remaining blood is
then returned to the body.

Blood will be drawn through a needle in a vein in one arm, then passed through a machine, and
then the remaining blood will be returned back to you through a needle in a vein in your
other arm. The machine will remove a sample of your white blood cells. This process will take
about 3 hours to complete.

Blood may also be collected through a standard blood draw. Blood (less than 7 tablespoons)
containing circulating T cells will be drawn over 1-2 days using one or more needle sticks in
your arm.

Your white blood cell sample will be sent to a lab at MD Anderson so the genetically modified
T cell product can be made. The modified T cells will be grown in the lab.

It will take about 7 weeks to modify and grow the necessary number of genetically modified T
cells. If researchers are unable to create a high enough dose of T cells for you in the lab,
you will be taken off study.

Placement of Central Venous Catheter:

Before the second leukapheresis, you will receive a central venous catheter. This is a
sterile flexible tube that will be placed into a large vein in your upper chest, while you
are under local anesthesia. The study investigator will explain this procedure to you in more
detail, and you will be required to sign a separate consent form for it.

When possible, all drugs that need to be given by vein will be given using the catheter. You
will also receive the T cell product through the catheter.

Leukapheresis #2 (For Collecting Stem Cells) only in patients receiving a stem cell
transplant:

About a month after your first leukapheresis, you will return to have the procedure repeated
a second time. This time, the blood cells collected will be a sample of blood-forming stem
cells. The stem cells will be given back to you after your chemotherapy. If a high enough
number of stem cells cannot be collected, however, you will be taken off study.

A stem cell transplant is part of this study's treatment plan, but in some cases,
participants in this study will have their stem cells collected as part of another research
study or for routine care.

Chemotherapy and Stem Cell Transplant:

After your stem cells have been successfully collected, you will be admitted to the hospital
to receive chemotherapy. You will stay in the hospital for about 3-4 weeks.

- On Day 1, you will receive carmustine by vein over 1 hour.

- Every 12 hours on Days 2-5, you will receive cytarabine by vein over 1 hour and
etoposide by vein over 3 hours.

- On Day 6, you will receive melphalan by vein over 30 minutes.

- On Day 7, the stem cells that were collected earlier will be given back to you
("transplanted") by vein over 30-45 minutes. Day 7 is also called Day 0, since it is the
day of the transplant. The days after the transplant are called Days +1, +2, and so on.

After the stem cell transplant, the study investigator will decide if you are still eligible
to receive the T cell infusion (and IL-2, if you are assigned to receive it). If you have any
infections or intolerable side effects, or if you are taking certain types of steroids by
mouth or injection, you will be taken off study. If you do not receive the T cell infusions,
you would not need to return for the follow-up described below.

If you have had prior involvement of disease in your brain/spine area, your physician may
give you a different chemotherapy regimen consisting of the following:

- On Day 1, you will receive carmustine by vein over 1 hour.

- Every 12 hours on Days 2-3, you will receive thiotepa by vein over 1 hour

- On Day 7, the stem cells that were collected earlier will be given back to you
("transplanted") by vein over 30-45 minutes. Day 7 is also called Day 0, since it is the
day of the transplant. The days after the transplant are called Days +1, +2, and so on.

T Cell Infusion (Gene Transfer):

You will receive the T cell infusion sometime between Day +2 through Day +7. (The exact day
will be as soon as you are eligible.) The T cell infusion will be given by vein over 15-30
minutes. The infusion may be divided into two parts at least 24 hours apart. The first part
of the infusion will be a much smaller part to ensure that you have no immediate side
effects. During the infusion, your vital signs will be checked.

Alternatively, your doctor may decide that it is better for you to receive the infusion on
one day by vein over 15-30 minutes. During the infusion, your vital signs will be checked.

Before the T cell infusion, you will receive drugs to lower your risk of allergic reaction to
the T cells. Acetaminophen (Tylenol®) will be given by mouth, and diphenhydramine (Benadryl®)
will be given by vein over a few minutes.

IL-2 Administration:

If you are in Group 2 or 4, IL-2 will be injected under the skin, once a day for up to 14
days. The first dose will be on the day of your T cell infusion.

Before each IL-2 injection, you will receive drugs to lower your risk of allergic reaction to
the IL-2. Acetaminophen will be given by mouth. Diphenhydramine will be given by mouth or by
vein over a few minutes.

Study Tests:

Every day while you are in the hospital, blood (about 2 teaspoons) will be drawn for routine
tests.

On the day of the T-cell infusion, the following tests and procedures will be performed:

- You will have a physical exam, including measurement of vital signs and weight.

- You will be asked about any side effects you may have had.

- Your medical history will be recorded.

- Blood (about 2 teaspoons) will be drawn for routine tests.

Within 3 days, 1 week, and 2 weeks after the T cell infusion, the following tests and
procedures will be performed:

- You will have a physical exam, including measurement of vital signs and weight.

- Your medical history will be recorded.

At 1, 2, 3, 6, and 12 months (+/-5 days), blood (about 2 teaspoons each time) will be drawn
for research to look for the modified T cells and to measure the number of B cells and other
(non-modified) T cells. Like T cells, B cells are part of your immune system.

Follow-Up:

At about 1, 2, 3, 6, and 12 months after the stem cell transplant, you will return for
follow-up visits. At each visit, the following tests and procedures will be performed:

- You will have a physical exam, including measurement of vital signs and weight.

- Your medical history will be recorded.

- Blood (about 1-2 tablespoons) will be drawn for routine tests and for research to look
for the modified T cells and to measure the number of B cells and other T cells. Part of
the blood sample at 12 months will be tested for HAMA.

- Other tests to check your health may also be performed if needed, such as CT scans,
PET/CT scans, and/or bone marrow aspirations and biopsies.

If the disease comes back or a side effect occurs during the 12 months after the stem cell
transplant, you may be asked to return for additional follow-up visits as needed.

Length of Study Participation:

If you have any infections or intolerable side effects, you will be taken off study early.

If you complete the study as planned, you will be off-study after your last follow-up visit.

Request for Autopsy:

In the event of death due to any cause, an autopsy will be requested from your family if it
is possible.

Long-Term Follow-Up:

For safety reasons, the U.S. Food and Drug Administration (FDA) requires patients receiving
gene transfer to have long-term follow-up for at least 15 years after receiving the gene
transfer. You will be asked to sign a separate consent form for long-term follow up. That
study is known as Protocol 2006-0676, and the follow-up will begin 1 year after the gene
transfer study.

This is an investigational study. The chemotherapy and stem cell transplant in this study are
commercially available and FDA approved. The gene transfer is not commercially available or
FDA approved. At this time, gene transfer is only being used in research.

Up to 60 patients will take part in this study. All will be enrolled at MD Anderson.

Inclusion Criteria:

1. Patients with a history of CD19+ lymphoid malignancies that are beyond first remission
or primary refractory to treatment.

2. Age 18 to 75 years.

3. Zubrod performance 0-1 or Karnofsky greater than or equal to 80%.

4. Patient able to provide written informed consent.

5. Patient able to provide written informed consent for the long-term follow-up gene
therapy study.

6. Eligibility at time of transplant conditioning regimen (criteria 6-13): Zubrod
performance 0-1 or Karnofsky greater than or equal to 80%.

7. Left ventricular ejection fraction >/= 40%. No uncontrolled arrhythmias or
uncontrolled symptomatic cardiac disease.

8. No symptomatic pulmonary disease. FEV1, FVC and DLCO >/= 50% of expected, corrected
for hemoglobin.

9. Serum creatinine /= 40 cc/min.

10. Adequate hepatic function, as defined by SGPT <3 X upper limit of normal; serum
bilirubin and alkaline phosphatase <2 X upper limit of normal, or considered not
clinically significant.

11. If positive Hepatitis B and/or Hepatitis C serology, discuss with Principal
Investigator or designee and consider liver biopsy.

12. No pleural/pericardial effusion or ascites estimated to be >1L.

13. Not breast feeding or pregnant. Pregnancy determined by a positive beta HCG test in a
woman with child bearing potential, defined as not post-menopausal for 12 months or no
previous surgical sterilization.

14. Eligibility at time of T-cell infusion (criteria 14-15): No systemic corticosteroids
within 3 days prior to T-cell infusion.

15. Not experiencing any new Grade >2 (CTC version 4) adverse neurologic, pulmonary,
cardiac, gastrointestinal, renal or hepatic (excluding albumin) event within 24 hours
prior to T-cell infusion.

16. Eligibility criteria for administration of IL-2 after T-cell infusion: Absence of new
adverse event of grade >2 (CTC vs. 4) involving cardiopulmonary, hepatic (excluding
albumin), gastrointestinal, neurologic, or renal toxicity probably or definitely
attributed to infused T cells within one week of cells.

Exclusion Criteria:

1. Positive beta HCG in female of child-bearing potential defined as not post-menopausal
for 12 months or no previous surgical sterilization.

2. Patients with known allergy to bovine or murine products.

3. Positive serology for HIV.