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Dose escalation of CAR+ T cells based on the patients actual body-weight

Dose Escalation with 5 dose levels of CAR+ T memory cells based on the patients actual body-weight

Allogeneic stem cell transplant

Patients receive T cells genetically engineered to express an anti-CD19 CAR. The cells are cultured in media containing IL-21, IL-7, and TWS119.

TWS119 is a glycogen synthase 3 inhibitor

Anti-CD19-chimeric-antigen-receptor-transduced T cells

Leukapheresis

James N Kochenderfer, M.D.

Background:

* Allogeneic hematopoietic stem cell transplantation (alloHSCT) is a procedure that transplants bone marrow cells (stem cells) from a matching donor into a recipient in order to allow the donor stem cells to produce cells that will attack the recipient s cancer cells. AlloHSCT is performed when chemotherapy, immunotherapy, or radiation therapy do not adequately control cancer growth. However, cancers that are not controlled by alloHSCT frequently become resistant to other standard treatment options.
* The outcomes of alloHSCT might be improved if certain kinds of white blood cells (T cells) could be manipulated so that they generate a more potent effect against the cancer cells. This effect can be augmented by genetically engineering donor T cells to specifically recognize cancerous cells in order to attack them. For this purpose, researchers are studying a specific kind of genetically engineered T cell known as the anti-CD19-CAR-transduced T cell. More research is needed to determine if this T cell will be an effective treatment for certain kinds of B cell cancer (such as non-Hodgkin s lymphoma and chronic lymphocytic leukemia) that has not been controlled with alloHSCT.

Objectives:

- To assess the safety and effectiveness of administering allogeneic anti-CD19-CAR-transduced T cells to patients with B-cell cancer that has not responded to alloHSCT.

Eligibility:

* Individuals between 18 and 75 years of age who have received allogeneic hematopoietic stem cell transplantation for a B cell cancer, but whose cancer has either not responded to or recurred after the transplant.
* Recipients must have the same stem cell donor from their previous procedure.

Design:

* Before the start of the study, all participants will be screened with a medical history and blood tests. Recipients will have tumor imaging scans, additional blood tests, and other tests as directed by the study doctors.
* Donor participants will undergo apheresis to provide white blood cells for researchers to use in the treatment.
* Recipients will have dose escalation to determine the most effective yet safe dose of anti-CD19 T cells. There will be six dose levels of anti-CD19 T cells. The first patients enrolled will have the smallest dose, and the dose will be increased when a level has been determined to be safe. .
* Recipients will be hospitalized for at least 9 days after receiving the cell infusion, and will need to come to clinic for follow-up visits 2, 4, 8, and 12 weeks after the infusion.
* Additional scans and frequent blood tests will be required for the first 3 months after the infusion, followed by less frequent visits over time.
* Recipients will be followed for a maximum of 15 years after receiving the infusion.

Background:

Many patients with advanced B-cell malignancies that cannot be cured by chemotherapy and monoclonal antibodies have prolonged relapse-free survival after allogeneic hematopoietic stem cell transplantation (alloHSCT); however, a substantial fraction of patients with B-cell malignancies relapse following alloHSCT.

The first therapeutic maneuver attempted when patients without graft-versus-host disease (GVHD) relapse after alloHSCT is usually withdrawal of immunosuppressive drugs. If a remission does not occur after withdrawal of immunosuppression, patients are often treated with lymphocyte -DCI. Withdrawal of immunosuppression and DCI can lead to complete remissions in patients with B-cell malignancies that relapse after alloHSCT. Unfortunately, a substantial fraction of patients do not enter a complete remission after withdrawal of immunosuppression followed by DCI, and these therapies are often complicated by GVHD.

The outcomes of alloHSCT might be improved if T cells could be manipulated so that they generate a more potent graft-versus-malignancy (GVM) effect than unmanipulated T cells.

We hypothesize that the GVM effect against B-cell malignancies can be augmented by genetically engineering donor T cells to express receptors that specifically recognize antigens expressed by malignant B cells.

Chimeric antigen receptors (CARs) consist of an antigen recognition moiety combined with T-cell signaling domains. CARs are capable of activating T cells in an antigen-specific manner.

Expression of the CD19 antigen is limited to B cells and perhaps follicular dendritic cells. Most malignant B cells express CD19.

We have constructed a retroviral vector encoding an anti-CD19 CAR. Large numbers of T cells that have been transduced with this retroviral vector can be generated in vitro for clinical adoptive T cell therapy. These anti-CD19-CAR-transduced T cells specifically recognize a variety of CD19+ target cells and kill primary chronic lymphocytic leukemia (CLL) cells in vitro.

Primary Objective:

To assess the safety of administering allogeneic anti-CD19-CAR-transduced T cells to patients with B-cell malignancies that are persistent or relapsed after alloHSCT. The allogeneic anti-CD19-CAR-transduced T cells will be derived from the original allogeneic transplant donor.

Eligibility:

Patients with any CD19-expressing malignancy that is persistent or recurrent following successful engraftment after HLA-identical or \>=9/10 matched sibling, 1-antigen mismatched sibling, or 9/10-matched unrelated donor (URD) alloHSCT and withdrawal of immunosuppression.

The same donor that provided cells for the alloHSCT must be willing and able to undergo leukapheresis so that cells can be obtained to prepare the anti-CD19-CAR-transduced T cells.

The recipient must have at most grade I acute GVHD or chronic GVHD with no organ site with a score exceeding 1, except for the skin, for which a score of 1 or 2 will be allowable. The recipient must not have received systemic immunosuppressive drugs given for graft versus host disease for at least 28 days at the time of study enrollment. Patients must be on a dose of corticosteroids of an equivalent of 5 mg/day or less of prednisone. Corticosteroid creams, ointments, and eye drops are allowed.

Design:

The alloHSCT donor will undergo leukapheresis.

Patients will undergo apheresis to obtain peripheral blood mononuclear cells. These cells will be processed to produce anti-CD19 CAR stem memory T cells (anti-CD19 CAR Tscm). This process involves sorting the cells and then culturing the cells in vitro for 9 days. During the 9-day culture period, the cells will be transduced with gammaretroviruses encoding the FMC63-28Z.

CAR recipients will be monitored for development of acute treatment-related toxicities for at least 9 days after cell infusion as inpatients. Dose-limiting toxicities (DLTs) will include severe acute GVHD and Grade 4 toxicities not associated with GVHD.

A maximum of 126 evaluable patients (donors plus recipients) will be treated.

Assessment of safety is a primary objective of this clinical trial. Safety will be defined as a lack of severe acute post-infusional toxicities and an incidence of GVHD that is not higher than historical rates of GVHD occurring after standard DCI.

Anti-CD19-CAR-transduced T-cell persistence in the peripheral blood will be measured at multiple time points from 1 week to 1 year after anti-CD19-CAR-transduced T cell infusion by flow cytometry.

To assess for an anti-malignancy effect of the infused cells, patients will be staged using standard staging systems.

Administration of Anti-CD19-chimeric-antigen-receptor-transduced T Cells From the Original Transplant Donor to Patients With Recurrent or Persistent B-cell Malignancies After Allogeneic Stem Cell Transplantation

Administration of Anti-CD19-Chimeric-Antigen-Receptor-Transduced T Cells From the Original Transplant Donor to Patients With Recurrent or Persistent B-Cell Malignancies After Allogeneic Stem Cell Transplantation

.All IPD recorded in the medical record will be shared with intramural investigators upon request.@@@@@@All collected IPD will be shared with collaborators under the terms of collaborative agreements.

Amount of anti-CD19-CAR- transduced T cells in the blood of patients after infusion.

Median amount of time subject survives without disease progression after treatment

Spots Global Cancer Trial Database for lymphoma, hodgkins