CD19.CAR Allogeneic NKT for Patients With Relapsed or Refractory B-Cell Malignancies (ANCHOR)



Status:Not yet recruiting
Conditions:Lymphoma, Lymphoma
Therapuetic Areas:Oncology
Healthy:No
Age Range:18 - 75
Updated:12/15/2018
Start Date:March 2019
End Date:March 2034
Contact:Carlos Ramos, MD
Email:caramos@bcm.edu
Phone:(832) 824-4817

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Allogeneic Natural Killer T-Cells Expressing CD19 Specific Chimeric Antigen Receptor and Interleukin-15 in Relapsed or Refractory B-Cell Malignancies

This study is for patients who have lymphoma or leukemia that has come back or has not gone
away after treatment. Because there is no standard treatment for this cancer, patients are
being asked to volunteer for a gene transfer research study using special immune cells.

The body has different ways of fighting infection and disease. No single way seems perfect
for fighting cancers. This research study combines two different ways of fighting disease,
antibodies and immune cells. Antibodies are types of proteins that protect the body from
bacteria and other diseases. Immune cells, also called lymphocytes, are special
infection-fighting blood cells that can kill other cells including tumor cells. Both
antibodies and lymphocytes have been used to treat patients with cancer. They have shown
promise, but have not been strong enough to cure most patients.

The antibody used in this study is called anti-CD19. This antibody sticks to lymphoma cells
because of a substance on the outside of the cells called CD19. CD19 antibodies have been
used to treat people with lymphoma and leukemia. For this study, the anti-CD19 antibody has
been changed so that instead of floating free in the blood it is now joined to the NKT cells,
a special type of lymphocytes that can kill tumor cells but not very effectively on their
own. When an antibody is joined to a T cell in this way it is called a chimeric receptor.
Investigators have also found that NKT cells work better if proteins are added that stimulate
lymphocytes, such as one called CD28. Adding the CD28 makes the cells last for a longer time
in the body but maybe not long enough for them to be able to kill the lymphoma cells. It is
believed that by adding an extra stimulating protein, called IL-15, the cells will have an
even better chance of killing the lymphoma cells.

In this study the investigators are going to see if this is true by putting the anti-CD19
chimeric receptor with CD28 and the IL-15 into NKT cells grown from a healthy individual.
These cells are called ANCHOR cells. These cells will be infused into patients that have
lymphomas or leukemias that have CD19 on their surface. The ANCHOR cells are investigational
products not approved by the Food and Drug Administration.

The purpose of this study is to find the biggest dose of ANCHOR cells that is safe, to see
how long the ANCHOR cells last, to learn what their side effects are and to see whether this
therapy might help people with lymphoma or leukemia.

Earlier, a healthy donor provided blood to make ANCHOR cells in the laboratory. These cells
were grown and frozen for later use. To make the ANCHOR cells, the investigators took the
donor blood and stimulated it with growth factors to make the NKT cells grow. To get the CD19
antibody, CD28 and IL-15 into the NKT cells, they were infected with a virus, called a
retrovirus. This virus cannot grow and infect other cells, but delivered a new genetic
message into the ANCHOR cells that provides the instructions for the cells to make the CD19
antibody, CD28 and IL-15. This new genetic message will also help the investigators to find
the ANCHOR cells in the blood after they are injected. Because patients will have received
cells with a new gene in them, patients will be followed for a total of 15 years to see if
there are any long term side effects of gene transfer.

Patients will be assigned a dose of ANCHOR cells. This is a dose escalation study. This means
that at the beginning, patients will be started on the lowest dose of ANCHOR cells. Once that
dose schedule proves safe, the next group of patients will be started at a higher dose. This
process will continue until all 4 dose levels are studied. If the side effects are too
severe, the dose will be lowered or the infusions will be stopped.

In this study, patients will receive treatment with cyclophosphamide and fludarabine. These
drugs will decrease the numbers of the patients own immune cells before the ANCHOR cells are
infused.

The patient will be given an injection of ANCHOR cells into the vein through an IV at the
assigned dose. Before receiving the injection, the patient may be given a dose of Benadryl
and Tylenol. The injection will take about 20 minutes. The patient will then be monitored in
the clinic for up to 2 hours. Patients will need to stay in Houston for 4 weeks after the
ANCHOR cell infusion to monitor them for side effects. Patients will have follow-up visits
(at weeks 1, 2, 3, 4, and 6; months 3, 6, 9, and 12; twice a year for 4 years and then once a
year for the next 10 years - for a total of 15 years) and scheduled disease evaluations after
the ANCHOR cell infusion (at week 4 and then as clinically needed).

The treatment will be given by the Center for Cell and Gene Therapy at Houston Methodist
Hospital.

Medical tests before treatment--

Before being treated, the patient will receive a series of standard medical tests:

- Physical exam and History

- Blood tests to measure blood cells, kidney and liver function

- Measurements of tumor by scans and/or bone marrow studies

- A urine pregnancy test, when applicable

Medical tests during and after treatment--

Patients will receive standard medical tests when getting the infusions and afterwards. The
evaluations that will be done at these visits include:

- Physical exams and History

- Blood tests to measure blood cells, kidney and liver function

- Measurements of the tumor by scans and/or bone marrow studies 4 weeks after the infusion

To learn more about the way the ANCHOR cells are working and how long they last in the body,
extra blood will be drawn. On the day patients receive the cells, blood will be taken before
the cells are given and a few hours afterwards. Other blood will be drawn one week after the
infusion, 2 weeks, 3 weeks (optional), 4 weeks, and 6 weeks after the infusion, at 3 months,
at 6 months, at 9 months, at 1 year, twice a year for 4 years, then yearly for the next 10
years - for a total of 15 years.

During the time points listed above, if the ANCHOR cells are found in the patient's blood
above a certain amount, an extra 5 mL of blood may need to be collected for additional
testing.

If the patient has a biopsy of a lymph node, like a repeat tumor or bone marrow study, the
investigators may ask to have a piece for research purposes.

Patients will receive supportive care for any acute or chronic toxicities, including blood
components or antibiotics, and other intervention as appropriate.

Treatment Inclusion Criteria:

1. Diagnosis of CD19-positive B-cell lymphoma or leukemia (ALL or CLL).

2. The disease is:

1. Relapsed or refractory after two or more lines of therapy, including a CD20
antibody, if an indolent lymphoma or CLL.

2. Relapsed or refractory after two or more lines of therapy, including a CD20
antibody and an anthracycline, and the patient is ineligible for autologous stem
cell transplantation, if an aggressive or highly aggressive lymphoma.

3. Relapsed or refractory after two or more lines of therapy, if ALL.

3. Measurable disease by current criteria.

4. Age >17 and ≤75 years.

5. Bilirubin less than 3 times the upper limit of normal.

6. AST less than 5 times the upper limit of normal.

7. Estimated GFR ≥ 50 mL/min.

8. Pulse oximetry of ≥ 90% on room air

9. Karnofsky or Lansky score of ≥ 70%.

10. Recovered from the acute toxic effects of all prior chemotherapy based on the
enrolling physician's assessment (if some effects of chemotherapy are expected to last
long term, patient is eligible if meeting other eligibility criteria).

11. Life expectancy of greater than 12 weeks.

12. Sexually active patients must be willing to utilize one of the more effective birth
control methods during the study and for 6 months after the study is concluded. The
male partner should use a condom.

13. Patients must sign an informed consent indicating that they are aware this is a
research study and have been told of its possible benefits and toxic side effects.
Patients or their guardians will be given a copy of the consent form.

Treatment Exclusion Criteria:

1. Currently receiving any investigational agents or received any cellular therapies
within the previous 6 weeks.

2. History of hypersensitivity reactions to murine protein-containing products.

3. Pregnant or lactating.

4. Active infection with HIV or HTLV.
We found this trial at
2
sites
6550 Fannin St
Houston, Texas 77030
(713) 790-3311
Phone: 832-824-4817
Houston Methodist Hospital Houston Methodist is comprised of a leading academic medical center in the...
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6621 Fannin St
Houston, Texas 77030
(832) 824-1000
Phone: 832-824-4817
Texas Children's Hospital Texas Children's Hospital, located in Houston, Texas, is a not-for-profit organization whose...
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