- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06345027
CHIMERIC ANTIGEN RECEPTOR TREATMENT TARGETING CD70 (SEVENTY) (CASEY)
This study is for patients that have lymph gland disease called Hodgkin or non-Hodgkin Lymphoma or T/NK-lymphoproliferative disease and the patients condition has come back or has not gone away after treatment, including the best treatment we know for these diseases.
Some patients with Lymphoma or T/NK-lymphoproliferative disease show signs of virus that is sometimes called Epstein Barr virus (EBV). This virus causes mononucleosis or glandular fever ("mono") before or at the time of their diagnosis. EBV is found in the cancer cells of up to half the patients with Hodgkin's and non-Hodgkin Lymphoma. This suggests that the EBV plays a role in causing Lymphoma. The cancer cells (in lymphoma) and some immune system cells infected by EBV are able to hide from the body's immune system and escape destruction.
T cells, also called T lymphocytes, are special infection-fighting blood cells that can kill other cells, including cells infected with viruses and tumor cells. T cells have been used to treat patients with cancers. T cells, that have been trained to kill EBV infected cells can survive in blood and affect the tumor. We have treated over 80 people on studies using T cells to target these diseases. About half of those patients who had disease at the time they got the cells had responses including some patients with complete responses (meaning the cancer could no longer be detected).
We think that if T cells are able to last longer in the body, they may have a better chance of killing EBV and EBV infected tumor cells. Therefore, in this study we will add a new gene to the EBV T cells that can cause the cells to live longer called C7R. We know that T cells need substances called cytokines (substances such as proteins released by specific cells of the immune system) to survive and that the cells may not get enough cytokines after the cells are infused into the body. We have added the gene C7R that gives the cells a constant supply of cytokine and helps them to survive for a longer period of time.
The purpose of this study is to find the largest safe dose of C7R-EBV T cells, and additionally to evaluate how long they can be detected in the blood and what affect they have on the cancer.
Study Overview
Status
Intervention / Treatment
Detailed Description
Patients will be enrolled to this study in two treatment groups: C7R-EBVSTs without lymphodepletion (Group A) and C7R-EBVSTs with lymphodepletion (Group B). The investigators will enroll patients into group B if limited expansion and clinical effectiveness is seen in Group A.
Patients will give blood to make C7R EBV T cells. These cells will be kept frozen until they are given to the patient.
The lines are made using a special process. To make the VSTs donor cells are mixed with small pieces of proteins, called peptides that are identical to proteins from EBV. First unwanted cells are separated from the donor blood. The unwanted cells have CD45RA on their surface and can be identified and removed from the product leaving behind only the T cells that contain a small number of VSTs. The cells are then stimulated with the peptides to make them grow. After about 9 days the growth of the VSTs starts to slow down and they are stimulated a second time (and possibly a third) with peptides together with cells from the donor that have been modified to help train the T cells to kill cells that are infected with EBV as well as a cell line (called ULCL) that helps the T-cells to grow. ULCL is made by infecting lymphocytes with EBV that has been made non-infectious by deleting a part of its DNA. ULCL is irradiated before use so that it cannot grow. Once enough VSTs are made they are frozen and tested to make sure they can recognize virus infected cells but not normal cells.
To get the C7R to be made by the T-cell, a gene is inserted into the T-cell. This is done using certain parts of a virus (known as a retrovirus). A retrovirus is a type of virus that inserts a copy of its own genetic material into the DNA of a different host cell. The retrovirus can carry the gene into the T cells. Patients that have received cells with a new gene in them will be followed for a total of 15 years in order to see if there are any long term side effects of gene transfer. Gene transfer is the insertion of genetic material into a cell.
Patients that enroll on this study will be assigned a dose of C7 R EBV T cells. The assigned dose of cells is based on body weight and height. In Group A, in this study patients will receive the C7 R EBV T cells. If in Group B, along with the C7R EBV T cells, patients will and may also receive cyclophosphamide and fludarabine. These two drugs are standard chemotherapy medicines and may be given before the T cells to make space in the blood for the T cells to grow after the patient has received them.
If in Group B, patients may receive cyclophosphamide and fludarabine, these drugs will be given intravenously (through an i.v. needle inserted in the vein or the central line) for 2 days and then fludarabine alone on the third day (Day -4, -3, -2) before the infusion. On Day 0, patients will be given an injection of C7 R EBV T cells into the vein through an IV line at the assigned dose.
Before receiving the T cell infusion, patients may be given a dose of Benadryl (diphenhydramine) and Tylenol (acetaminophen). The infusion will take between 1 and 10 minutes. Patients will be monitored in the clinic or hospital for about 2 hours. The treatment will be given by the Center for Cell and Gene Therapy at Texas Children's Hospital or Houston Methodist Hospital. Patients should plan to stay in Houston for at least 2 weeks after the infusion to be monitored for side effects.
Patients will have follow-up visits with the clinic after the infusion (at scheduled visits weeks 2 and 6, and nursing follow up at weeks 1, 2, 4 and 6 after the infusion, and at months 3, 6, 9, and 12 after the infusion. The patients will also have nursing follow up annually for the next 15 years, and scheduled disease evaluations after the T-cell injection (at week 6 +/- 2 weeks after the infusion and then as clinically needed).
After disease re-evaluation, if the disease has not gotten worse, or if in the future it seems that patients might benefit and have not had a severe side effect caused by the infusion of the C7R EBV T cells, the patients may be eligible to receive one additional dose of the T cells. The dose will be at the same dose level as the first infusion and separated by at least 4 weeks to make sure there are no severe side effects between infusions. Patients that receive an additional dose of C7R EBV T-cells, should plan to stay in Houston for at least 2 weeks after the infusion to be monitored for side effects.
Medical tests before treatment--
Before being treated, patients receive a series of standard medical tests:
- Physical exam
- Blood tests to measure blood cells, kidney and liver function
- Measurements of the tumor by routine imaging studies. Imaging studies that have been used in the past will be used to best assess the tumor (Computer Tomogram (CT) or Magnetic Resonance Imaging (MRI), and Positron Emission Tomography (PET/CT) and/or Bone Scan).
Medical tests during and after treatment--
Patients will receive standard medical tests while receiving the infusions and afterwards:
- Physical exams
- Blood tests to measure blood cells, kidney and liver function
- Measurements of the tumor by routine imaging studies approximately 6 weeks after the infusion.
- Tumor biopsy of an accessible tumor between 2-4 weeks after the infusion and as clinically indicated thereafter.
To learn more about the way the C7R EBV T cells are working and how long they last in the body, an extra amount of blood will be obtained on the day that chemotherapy starts, on the day of the T-cell infusion(s) and at the end of the T-cell infusion(s). Blood will also be obtained at 1, 2, 4, 6 weeks after the T-cell infusion(s) and every 3 months for the 1st year. Blood will then be obtained annually for the next 15 years and possibly at additional time points. The amount of blood taken will be based on weight with up to a maximum of 60 mL (12 teaspoons) of blood to be obtained at any one time. For children, the total amount of blood drawn will not be more than 3 mL (less than 1 teaspoon) per 2 lbs (1 kg) of body weight on any one day. This volume is considered safe, but may be decreased if the patient is anemic (have a low red blood cell count).
Study Type
Enrollment (Estimated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Bilal Omer, MD
- Phone Number: 832-826-0860
- Email: baomer@texaschildrens.org
Study Locations
-
-
Texas
-
Houston, Texas, United States, 77030
- The Methodist Hospital
-
Contact:
- Bilal Omer, MD
- Phone Number: 832-826-0860
- Email: baomer@texaschildrens.org
-
Houston, Texas, United States, 77030
- Texas Children's Hospital
-
Contact:
- Bilal Omer, MD
- Phone Number: 832-826-0860
- Email: baomer@texaschildrens.org
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Procurement Inclusion Criteria:
Diagnosis of primary refractory or relapsed Acute Myeloid Leukemia (AML) with the exception of acute promyelocytic leukemia (APL). Patients with targetable mutations should have failed or be ineligible for targeted therapies (e.g. FLT3 inhibitors, IDH inhibitors or anti-CD33 drug conjugate)
OR
Patients with other relapsed or refractory CD70+ hematological malignancies that would be considered an indication for allogeneic Hematopoietic Stem Cell Transplant (HSCT) if remission can be achieved. (Patients with CD19+ malignancies only: must have failed or be ineligible to receive commercial CD19.CAR T cell treatments.)
Primary refractory or resistant disease, defined as not achieving complete remission (CR) (i.e., a remaining blast count of 5% or more) after 1 to 2 cycles of intense induction therapy.
Relapse is defined as (1) hematologic relapse after complete remission based on bone marrow blasts >=5%, or reappearance of blasts in the blood, or development of extramedullary disease; (2) molecular relapse after minimal residual disease (MRD) negative, complete remission based on reoccurrence of MRD as assessed by RT-qPCR or by multi-parametric flow cytometry (MFC)
- CD70 positive tumor with at least 30% CD70+ blasts by flow cytometry or immunohistochemistry (staining can be pending at time of procurement)
- Age ≤75 years. NOTE: The first three (3) patients treated on the study will be adults (≥18 years of age)
- Hemoglobin ≥ 7.0 g/dL (can be transfused)
If apheresis required to collect blood
- PT and aPTT <1.5x ULN
- Serum Creatinine < 2 x ULN
- AST < 5 x ULN
- Informed consent
Procurement Exclusion Criteria:
- Diagnosis of acute promyelocytic leukemia (APL)
- Active infection (bacterial, fungal, or viral) requiring ongoing treatment without improvement.
- Known active infection with HIV or HTLV (collected blood will be sent for HIV/HTLV testing, separate testing prior to procurement not required)
- Active second cancer (except non-melanoma skin cancer or in situ breast cancer or cervical cancer) or other cancer treated ≤ 2 years prior to enrollment
- Ongoing treatment with immune suppression for prophylaxis/treatment of GVHD including high dose steroids (e.g. prednisone equivalent > 0.5 mg/kg/day)
Treatment Inclusion Criteria:
Diagnosis of primary refractory or relapsed Acute Myeloid Leukemia (AML) with the exception of acute promyelocytic leukemia (APL) Patients with targetable mutations should have failed or be ineligible for targeted therapies (e.g. FLT3 inhibitors, IDH inhibitors, or anti-CD33 drug conjugate).
OR
Patients with other relapsed or refractory CD70+ hematological malignancies that would be considered an indication for allogeneic Hematopoietic Stem Cell Transplant (HSCT) if remission can be achieved. Patients with CD19+ malignancies only: must have failed or be ineligible to receive commercial CD19.CAR T cell treatments.
Primary refractory or resistant disease as defined by not achieving complete remission (CR) (i.e., a remaining blast count of 5% or more) after 1 to 2 cycles of intense induction therapy.
Relapse is defined as (1) hematologic relapse after complete remission based on bone marrow blasts >=5%, or reappearance of blasts in the blood, or development of extramedullary disease; (2) molecular relapse after minimal residual disease (MRD) negative, complete remission based on reoccurrence of MRD as assessed by RT-qPCR or by multi-parametric flow cytometry (MFC)
- Confirmation from the patient's primary physician team of a suitable allogeneic hematopoietic stem cell transplant (HSCT) donor. OR Documentation that patient declines a potential subsequent HSCT)
- CD70 positive tumor with at least 30% CD70+ blasts by flow cytometry or immunohistochemistry (tissue)
- No systemic chemotherapy at least 2 weeks prior to treatment on study and must be recovered from all acute toxic effects of prior chemotherapy at time of treatment.
- Age ≤ 75 years. NOTE: The first three (3) patients treated on the study should be adults (≥18 years of age). Thereafter, a thorough review of the safety data will be performed and submitted to the FDA for approval prior to enrolling pediatric patients.
- Hemoglobin ≥ 7.0 g/dL (can be transfused)
- Total bilirubin < 3 times the upper limit of normal
- AST/ALT < 5 times the upper limit of normal
- Estimated GFR ≥ 60ml/min
- Pulse oximetry of > 90% on room air
- Karnofsky/Lansky score of ≥ 60%
- 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. Male partner should use a condom
- Informed consent obtained
Treatment Exclusion Criteria:
- Diagnosis of acute promyelocytic leukemia (APL)
- Currently receiving any investigational agents or received any tumor vaccines within the previous 6 weeks.
- Pregnant or lactating.
- Active infection with HIV or HTLV
- Clinically significant bacterial, fungal, or viral infection requiring ongoing therapy without improvement.
- Cardiac criteria: Cardiac echocardiography with LVEF<50%; Cardiac dysfunction NYHA III or IV; Clinically significant pericardial effusion. Confirmation of absence of these conditions within 6 months of treatment.
- CNS abnormalities: Presence of CNS disease defined as detectable cerebrospinal blast cells in a sample of CSF with ≥ 5 WBCs per mm3 or known CNS tumors/chloromas
- Use of serotherapy with Campath or Anti-Thymocyte Globulin (ATG) within the last 28 days
- Use of Donor Lymphocyte Infusion (DLI) or other cellular therapy product within 28 days
- Acute GVHD ≥ Grade 2 or moderate to severe (formerly extensive) chronic GVHD
- High dose steroids >1 mg/kg within preceding 5 days or currently receiving >0.5mg/kg/day prednisone equivalent
- Hyperleukocytosis (WBC ≥ 50K) or rapidly progressive disease that in the estimation of the investigator would compromise the ability of the patient to complete the study within 3 months of allogeneic HSCT
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Treatment Arm A
Patients will initially be consented for procurement of blood for generation of the transduced T-cells. Three dose levels will be evaluated and a possible dose level -1 in case of unexpected toxicity at dose level 1. Each patient will receive one T cell infusion. |
Each patient will receive one T cell infusion. CD70.CAR Dose Levels / Cell Dose (transduced cells): Dose Level -1: 3 x 10^5 cells/kg Dose Level 1 (starting dose level): 1 x 10^6 cells/kg Dose Level 2: 3 x 10^6 cells/kg Dose Level 3: 1 x 10^7 cells/kg *First three patients treated on the study will be adults 18 years of age or older. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dose limiting toxicity (DLT) rate
Time Frame: Time Frame 4 weeks post infusion
|
1. Dose-limiting toxicity (CTCAE v5.0) is defined as any grade 3 or 4 non-hematologic toxicities (including allergic reactions and ICANS) that fails to return to Grade 2 within 72 hours or any grade 5 toxicity (additional assessment criteria may apply).
|
Time Frame 4 weeks post infusion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Overall Response Rate
Time Frame: Time Frame 4 weeks post infusion
|
1. Response rate by International Working Group Criteria for AML and disease specific response criteria for patients with other hematological malignancies. The response rate for AML is calculated as the overall complete response rate (CRMRD- + CR + CRi) |
Time Frame 4 weeks post infusion
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Bilal Omer, MD, Baylor College of Medicine
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- H-53163 CASEY
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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