Cord Blood Fucosylation to Enhance Homing and Engraftment in Patients With Hematologic Malignancies

Central Venous Catheter Placement:

You will first have a central venous catheter (CVC) placed. A CVC is a sterile flexible tube
that will be placed into a large vein while you are under local anesthesia. Your doctor will
explain this procedure to you in more detail, and you will be required to sign a separate
consent form for it.

The chemotherapy, some of the other drugs in this study, and the cord blood transplant will
be given by vein through your CVC. Blood samples will also be drawn through your CVC. The
CVC will remain in your body for about 2-5 months.

Study Plans:

If you agree to take part in this study, your doctor will choose one of the following 2
study plans based on the disease and your age and medical history.

Fludarabine/Clofarabine/Busulfan/Rituximab/Total Body Irradiation:

If you are between 1 and 55 years of age and can receive high-dose chemotherapy, or you are
between 55 and 65 years old and your doctor agrees, you will receive fludarabine,
clofarabine, busulfan, ATG, total body irradiation, and possibly rituximab.

You will receive a test dose of busulfan by vein over 60 minutes as an outpatient. If the
test dose cannot be given as an outpatient, you will be admitted to the hospital on Day -10
for intravenous (IV) fluids and will receive the busulfan test dose on Day -9. This
low-level "test" dose of busulfan is to check how the level of busulfan in your blood
changes over time. This information will be used to decide the next dose needed to reach the
target blood level that matches your body size.

About 11 samples of blood will be drawn for pharmacokinetic (PK) testing of busulfan. PK
testing measures the amount of study drug in the body at different time points. These blood
samples will be drawn at various timepoints starting before the busulfan infusion and
continuing over about the next 11 hours. The blood samples will be repeated again with the
first day of high-dose busulfan treatment. Each sample will be about 1 teaspoon of blood. A
temporary heparin lock will be placed in your vein to lower the number of needle sticks
needed for these draws. If it is not possible for the PK tests to be performed for technical
or scheduling reasons, you will receive the standard fixed dose of busulfan.

If you will receive the test dose as an outpatient, you will be admitted to the hospital on
Day -8 and will receive fluids by vein. If appropriate for the disease, you will receive
rituximab by vein over 4-6 hours on Day -8.

If you will receive the test dose as an inpatient, you will be admitted on Day -10 and will
receive fluids by vein. If appropriate for the disease, you will receive rituximab by vein
over 4-6 hours on Day -10.

On Days -7 through -4, you will receive fludarabine by vein over 1 hour, clofarabine by vein
over 1 hour, and busulfan by vein over 3 hours. You will receive ATG on Days -4 and -3. On
Day -3, you will receive a single treatment of low-dose total body irradiation. You will
"rest" (not receive chemotherapy drugs) on Days -2 and -1. Day 0 is the day of the cord
blood transplant, so the negative day numbers are used to label the treatment days before
the transplant.

All chemotherapy drugs, fluids, and other drugs that must be given by vein will be infused
through the catheter. Once the back-up cells are collected, all participants will be
admitted to the hospital as indicated by their assigned treatment plan schedule.

Fludarabine/Melphalan:

If your doctor chooses fludarabine and melphalan, you will have the following schedule:

- On Day -6 (6 days before your transplant), you will be admitted to the hospital and
will receive fluids by vein.

- On Days -5, -4, and -3, you will receive fludarabine by vein over 30 minutes.

- On Days -4 and -3, you will receive ATG by vein over 4 hours.

- On Day -2, you will receive fludarabine by vein over 30 minutes and melphalan by vein
over 30 minutes.

- On Day -1, you will not receive any drugs.

- On Day 0, you will receive your cord blood transplant through the CVC.

Supportive Drugs:

Starting on Day -3, you will receive mycophenolate mofetil as a tablet by mouth 2 times a
day. If you are not able to take the tablet by mouth, you will receive MMF by vein over 2
hours 2 times a day. If you do not have GVHD at Day 100 after your cord blood transplant,
the dose of MMF will be gradually lowered. If you have GVHD, MMF may be stopped 7 days after
the GVHD is controlled.

Starting on Day -2, you will receive tacrolimus by vein as a continuous (nonstop) infusion
until you are able to take it by mouth. You will then take tacrolimus by mouth 2 times a day
for about 6 months. After that, your tacrolimus dose may be gradually lowered if you do not
have GVHD. Your doctor will discuss this with you.

Starting on Day 0, you will receive filgrastim (G-CSF) through a needle under the skin 1
time a day every day until your white blood count begins to recover. Filgrastim is designed
to help cells in the bone marrow to divide, which helps raise white blood cells counts more
quickly, lower fever, and decrease the risk of infection.

Study Visits:

At about 1, 3, 6, and 12 months after the transplant:

- You will have a physical exam.

- You will be checked for possible reactions to the transplant and study drugs, including
GVHD.

- Blood (about 4 teaspoons) will be drawn for routine tests, to check for CMV antibodies,
and for genetic tests to learn if the donor's cells have "taken". The routine blood
tests will be repeated as often as the doctor thinks is needed.

- If the doctor thinks it is needed, you will have a bone marrow aspiration to check the
status of the disease.

You will need to stay in the hospital for about 4 weeks. After you leave the hospital, you
will continue as an outpatient in the hospital area, which means you will have to stay close
enough to be able to come back for any visits for about 100 days after the transplant.

Length of Participation:

You will be on study for up to 1 year. You will be taken off study early if the disease gets
worse, if intolerable side effects occur, if the cord blood is infected and cannot be
transplanted, if you are unable to follow study directions, or if your doctor thinks it is
in your best interest.

This is an investigational study. Fucosylation is not an FDA-approved process. It is
currently being used for research purposes only. Fludarabine, busulfan, clofarabine,
melphalan, mycophenolate mofetil, tacrolimus, and rituximab are FDA approved and
commercially available to be given to patients with leukemia or lymphoma having a cord blood
transplant. Total body irradiation is delivered using FDA-approved and commercially
available methods.

Up to 50 patients will be enrolled in this study. All will be enrolled at MD Anderson.

Inclusion Criteria:

1. Patients must have one of the following hematologic malignancies: Acute Myelogenous
Leukemia (AML), induction failure, high-risk for relapse first remission (with
intermediate-risk or high-risk cytogenetics, flt3 mutation positive and/or evidence
of minimal residual disease by flow cytometry), secondary leukemia from prior
chemotherapy and/or arising from MDS, Langerhan's cell histiocytosis, any disease
beyond first remission; or,

2. Myelodysplastic Syndrome (MDS): Primary or therapy related; or,

3. Acute Lymphoblastic Leukemia (ALL): induction failure, primary refractory to
treatment (do not achieve complete remission after first course of therapy) or are
beyond first remission including second or greater remission or active disease.
Patients in first remission are eligible if they are considered high risk, defined as
any of the following detected at any time: with translocations 9;22 or 4;11,
hypodiploidy, complex karyotype, secondary leukemia developing after cytotoxic drug
exposure, and/or evidence of minimal residual disease, or acute biphenotypic
leukemia, or double hit non-Hodgkin's lymphoma; or,

4. Non-Hodgkin's Lymphoma (NHL) in primary induction failure, second or third complete
remission, refractory disease, or relapse (including relapse post autologous
hematopoietic stem cell transplant). Double hit lymphomas in first remission or more
advanced disease; or,

5. Small Lymphocytic Lymphoma (SLL), or Chronic Lymphocytic Leukemia (CLL) with
progressive disease following standard therapy; or,

6. CML second chronic phase or accelerated phase; or,

7. Hodgkin's Disease (HD): Induction failures, second or third complete remission, or
relapse (including relapse post autologous hematopoietic stem cell transplant).

8. Patients Age Criteria: Age >/= 1 and patients will be determined in conjunction with an MDACC pediatrician.

9. Performance score of at least 80% by Karnofsky or PS < 3 (ECOG) (age >/= 12 years),
or Lansky Play-Performance Scale of at least 60% or greater (age <12 years).

10. Adequate major organ system function as demonstrated by: a. Left ventricular ejection
fraction of at least 40-45% b. Pulmonary function test (PFT) demonstrating a
diffusion capacity of least 50% predicted. For children unable to perform PFT, oxygen saturation >/= 92% on room air by pulse oximetry. c.
Creatinine < 1.6 mg/dL. d. SGPT/bilirubin
11. Negative Beta HCG test in a woman with child bearing potential defined as not
post-menopausal for 12 months or no previous surgical sterilization and willing to
use an effective contraceptive measure while on study.

12. Patients must have two CB units available which are matched with the patient at 4, 5,
or 6/6 HLA class I (serological) and II (molecular) antigens. Each cord must contain
at least 1.5 x 10^7 total nucleated cells/Kg recipient body weight (pre-thaw).

13. Have identified a back-up cell source in case of engraftment failure. The source can
be autologous, related or unrelated.

Exclusion Criteria:

1. Patients with known history of HIV/AIDS.

2. Active CNS disease in patient with history of CNS malignancy.

3. Patients with chronic active hepatitis or cirrhosis. If positive hepatitis serology,
the Study Chair may deem the patient eligible based on the results of liver biopsy.

4. Patients with uncontrolled serious medical condition such as persistent septicemia
despite adequate antibiotic therapy, decompensated congestive heart failure despite
cardiac medications or pulmonary insufficiency requiring intubation (excluding
primary disease for which CB transplantation is proposed), or psychiatric condition
that would limit informed consent.

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