Most Closely Matched 3rd Party Rapidly Generated LMP, BARF1 And EBNA1 Specific CTL, EBV-Positive Lymphoma (MABEL)
MABEL
ADMINISTRATION OF MOST CLOSELY MATCHED THIRD PARTY RAPIDLY GENERATED LMP, BARF1 and EBNA1 SPECIFIC CYTOTOXIC T-LYMPHOCYTES TO PATIENTS WITH EBV-POSITIVE LYMPHOMA AND OTHER EBV-POSITIVE MALIGNANCIES
2 other identifiers
interventional
38
1 country
2
Brief Summary
The subject has a type of cancer or lymph gland disease associated with a virus called Epstein Barr Virus (EBV), which has come back, is at risk of coming back, or has not gone away after standard treatments. This research study uses special immune system cells called LMP, BARF-1 and EBNA1- specific cytotoxic T lymphocytes (MABEL CTLs). Some patients with Lymphoma (such as Hodgkin (HD) or non-Hodgkin Lymphoma (NHL)), T/NK-lymphoproliferative disease, or CAEBV, or solid tumors such as nasopharyngeal carcinoma (NPC), smooth muscle tumors, and leiomyosarcomas show signs of a virus called EBV before or at the time of their diagnosis. EBV causes mononucleosis or glandular fever ("mono" or the "kissing disease"). EBV is found in the cancer cells of up to half the patients with HD and NHL, suggesting that it may play a role in causing Lymphoma. The cancer cells (in lymphoma) and some immune system cells (in CAEBV) infected by EBV are able to hide from the body's immune system and escape destruction. EBV is also found in the majority of NPC and smooth muscle tumors, and some leiomyosarcomas. Investigators want to see if special white blood cells (MABEL CTLs) that have been trained to kill EBV infected cells can survive in patients blood and affect the tumor. In previous studies, EBV CTLs were generated from the blood of the patient, which was often difficult if the patient had recently received chemotherapy. Also, it took up to 1-2 months to make the cells, which is not practical when a patient needs more urgent treatment. To address these issues, the MABEL CTLs were made in the lab in a simpler, faster, and safer way. The MABEL CTLs will still see LMP proteins but also two other EBV proteins called EBNA-1 and BARF. To ensure these cells are available for use in patients in urgent clinical need, investigators have generated MABEL CTLs from the blood of healthy donors and created a bank of these cells, which are frozen until ready for use. Investigators have previously successfully used frozen T cells from healthy donors to treat EBV lymphoma and virus infections and we now have improved our production method to make it faster. In this study, investigators want to find out if they can use banked MABEL CTLs to treat HD, NHL, T/NK-lymphoproliferative disease, CAEBV, NPC, smooth muscle tumors or leiomyosarcoma. Investigators will search the bank to find a MABEL CTL line that is a partial match with the subject. MABEL CTLs are investigational and not approved by the Food and Drug Administration.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Feb 2015
Longer than P75 for phase_1
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 6, 2014
CompletedFirst Posted
Study publicly available on registry
November 10, 2014
CompletedStudy Start
First participant enrolled
February 1, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 12, 2024
CompletedResults Posted
Study results publicly available
February 24, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2029
ExpectedMarch 23, 2026
March 1, 2026
9 years
November 6, 2014
January 8, 2025
March 3, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants With a Dose-limiting Toxicity (DLT)
To evaluate the safety of administering escalating doses of banked allogeneic, partially HLA-matched rapid EBV specific T cells.
8 weeks
Secondary Outcomes (1)
Percent of Patients Whose Best Response is Either Complete Remission or Partial Remission
8 weeks
Study Arms (3)
Group A: MABEL CTLs
EXPERIMENTALPatients with 1st or subsequent relapse. Three different dosing schedules will be evaluated. Two to four patients will be evaluated on each dosing schedule. Each patient will receive 2 injections, 14 days apart. If the patient's level of circulating T cells is relatively high, s/he may require treatment with cyclophosphamide (Cytoxan) and Fludarabine before s/he receives MABEL CTLs.
Group B: MABEL CTLs
EXPERIMENTALPatients with persistent active disease despite therapy. Three different dosing schedules will be evaluated. Two to four patients will be evaluated on each dosing schedule. Each patient will receive 2 injections, 14 days apart. If the patient's level of circulating T cells is relatively high, s/he may require treatment with cyclophosphamide (Cytoxan) and Fludarabine before s/he receives MABEL CTLs.
Group C: MABEL CTLs
EXPERIMENTALPatients with active disease if immunosuppressive chemotherapy is contraindicated. Three different dosing schedules will be evaluated. Two to four patients will be evaluated on each dosing schedule. Each patient will receive 2 injections, 14 days apart. If the patient's level of circulating T cells is relatively high, s/he may require treatment with cyclophosphamide (Cytoxan) and Fludarabine before s/he receives MABEL CTLs.
Interventions
Dose escalation: DL1:2x10\^7 cells/m2+2x10\^7 cells/m2 DL2:2x10\^7cells/m2+5x10\^7 cells/m2 DL3:5x10\^7 cells/m2+1x10\^8 cells/m2 \*Doses are based on total CD3+cells/m2 Patients with active disease that have apparent clinical benefit at the 8 wk post 1st infusion (6 wks after 2nd infusion) or subsequent evaluations may receive up to 6 additional doses of CTLs at intervals at least 6 wks apart, each of which will consist of the same cell number as their second injection or below the original dose if there is not enough product available for the original dose. Patients may receive lymphodepleting chemotherapy (Cy/Flu) before additional infusions. Patients cannot receive additional doses until the initial safety profile is completed at 6 wks following the second infusion.
If the patient's level of circulating T cells is relatively high, s/he may require treatment with cyclophosphamide (Cytoxan) and Fludarabine before s/he receives MABEL CTLs. 3 daily doses of cyclophosphamide (Cy: 500 mg/m2/day) together with fludarabine (Flu: 30 mg/m2) to induce lymphopenia, finishing at least 24 hours before CTL infusion.
If the patient's level of circulating T cells is relatively high, s/he may require treatment with cyclophosphamide and fludarabine before s/he receives MABEL CTLs. 3 daily doses of cyclophosphamide (Cy: 500 mg/m2/day) together with fludarabine (Flu: 30 mg/m2) to induce lymphopenia, finishing at least 24 hours before CTL infusion.
Eligibility Criteria
You may qualify if:
- SCREENING
- Any patient regardless of age or sex, with diagnosis of either:
- EBV positive Hodgkin's lymphoma
- EBV Positive non-Hodgkin's Lymphoma (regardless of histologic subtype)
- EBV (associated)-T/NK-lymphoproliferative disease
- Severe Chronic Active EBV (CAEBV) -- CAEBV is defined as patients with high EBV viral load in plasma or PBMC (\>4000 genomes per ug PBMC DNA) and/or biopsy tissue positive for EBV
- Other EBV positive malignancies (e.g. nasopharyngeal carcinoma, smooth muscle tumors, etc.)
- AND
- in first or subsequent relapse (Group A)
- with active disease persisting despite therapy (Group B)
- with active disease if immunosuppressive chemotherapy is contraindicated e.g. patients who develop Hodgkin disease after solid organ transplantation or if the lymphoma is a second malignancy e.g. a Richter's transformation of CLL. (Group C)
- EBV positive tumor
- Weighs at least 12kg
- Informed consent (and assent as applicable) obtained from patient/guardian.
- TREATMENT
- +21 more criteria
You may not qualify if:
- TREATMENT
- Pregnant or lactating
- Severe intercurrent infection
- Current use of systemic corticosteroids more than 0.5 mg/kg/day
- Patients receiving ATG, Campath, or other immunosuppressive T cell monoclonal antibodies within 30 days.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Houston Methodist Hospital
Houston, Texas, 77030, United States
Texas Children's Hospital
Houston, Texas, 77030, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Rayne Rouce
- Organization
- Baylor College of Medicine
Study Officials
- PRINCIPAL INVESTIGATOR
Rayne H Rouce, MD
Baylor College of Medicine
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
November 6, 2014
First Posted
November 10, 2014
Study Start
February 1, 2015
Primary Completion
January 12, 2024
Study Completion (Estimated)
March 1, 2029
Last Updated
March 23, 2026
Results First Posted
February 24, 2025
Record last verified: 2026-03