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Therapeutic Effects of Epstein-Barr Virus Immune T-Lymphocytes Derived From a Normal HLA-Compatible Or Partially-Matched Third-Party Donor in the Treatment of EBV Lymphoproliferative Disorders and EBV-Associated Malignancies

A Phase II Study of the Therapeutic Effects Of Epstein-Barr Virus Immune T-Lymphocytes Derived From a Normal HLA-Compatible Or Partially-Matched Third-Party Donor in the Treatment of EBV Lymphoproliferative Disorders and EBV-Associated Malignancies

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01498484
Enrollment
87
Registered
2011-12-23
Start date
2011-12-31
Completion date
2019-07-31
Last updated
2022-10-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

EBV-associated Malignancies, EBV-induced Lymphomas, Transplant Patients With EBV Viremia at High Risk for Developing a Recurrent EBV Lymphoma

Keywords

EBV-specific T-cell lines, 11-130

Brief summary

This is a Phase II trial to evaluate the efficacy and safety of human leukocyte antigen (HLA) partially-matched third-party allogeneic Epstein-Barr virus cytotoxic T lymphocytes (EBV-CTLs) for the treatment of EBV-induced lymphomas and EBV-associated malignancies.

Interventions

BIOLOGICALEBV-specific T cells (EBV-CTLs)

EBV-CTLs are cytotoxic T lymphocytes that specifically kill cells presenting EBV protein antigens including EBV-transformed B lymphocytes responsible for EBV-associated lymphomas and lymphoproliferative disorders.

Sponsors

Memorial Sloan Kettering Cancer Center
CollaboratorOTHER
Atara Biotherapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Pathologically documented EBV antigen positive lymphoproliferative disease, lymphoma or other EBV-associated malignancy. OR * Evaluable disease as demonstrated by clinical and/or radiologic studies with current or prior elevated blood levels of EBV DNA exceeding 500 copies/ml by quantitative real time polymerase chain reaction (PCR). OR * Persistent or recurrent elevations in levels of EBV DNA exceeding 500 copies/ml in patients previously treated for EBV-LPD with chemotherapy and/or rituximab who do not yet have clinically or radiologically evaluable disease but are at high risk of disease recurrence. * EBV-specific T cells are available for adoptive immune cell therapy from a consenting third party donor. The third party EBV-CTLs to be administered will be selected on the basis of two criteria: 1) that they are matched for at least 2 HLA antigens and 2) that they are restricted by an allele shared with the EBV+ malignancy (if known), or with the donor in HSCT recipients, or patient in organ transplant or immunodeficient patients * KPS or Lansky score ≥ 20. * A life expectancy of at least 6 weeks. * Adequate bone marrow, heart, lung, liver and kidney function at the time of treatment with EBV-specificT cells is initiated, including: 1. Absolute neutrophil count (ANC) ≥ 1,000/µL, with or without GCSF support 2. Platelets ≥ 20,000/µL 3. Creatinine ≤ 2.0mg/dl 4. Alanine aminotransferase (ALT), aspartate aminotransferase (AST) \< 3.0x and total bilirubin \< 2.5x the institutional upper limit of normal (ULN) 5. Stable blood pressure and circulation not requiring pressor support 6. Adequate cardiac function as demonstrated by EKG and/or echocardiographic evidence (may be performed within 30 days prior to treatment) * However, abnormalities of specific organs will not be considered grounds for exclusion if they are the result of the EBV+ malignancy or its treatment (e.g. a renal allograft recipient with an EBV LPD may be on dialysis because the allograft was rejected when the immune suppression was stopped as a first approach to treatment of the EBV LPD). At the discretion of the investigator, patients with elevated but stable creatinine will not be precluded from treatment on study. * There is no age restriction to eligibility for this protocol. It is expected that five types of patients afflicted with EBV-associated lymphomas, lymphoproliferative diseases or malignancies will be referred and will consent to participate in this trial. These are: 1. Patients developing EBV lymphomas or lymphoproliferative disorders following an allogeneic hematopoietic progenitor stem cell transplant (HSCT) (ie, marrow, PBSC, or umbilical cord blood). 2. Patients developing EBV lymphomas or lymphoproliferative disorders following an allogeneic organ transplant. 3. Patients with AIDS developing EBV lymphomas or lymphoproliferative diseases as a consequence of the profound acquired immunodeficiency induced by HIV. 4. Patients who develop EBV lymphomas or lymphoproliferative diseases or other EBV-associated malignancy as a consequence of profound immunodeficiencies associated with a congenital immune deficit or acquired as a sequela of anti-neoplastic or immunosuppressive therapy. 5. Patients who develop other EBV-associated malignancies without pre-existing immune deficiency, including: EBV+ Hodgkin's and Non-Hodgkin's disease, EBV+ nasopharyngeal carcinoma, EBV+ hemophagocytic lymphohistiocytosis, or EBV+ leiomyosarcoma.

Exclusion criteria

The following patients will be excluded from this study: * Patients with active (grade 2-4) acute graft vs. host disease (GVHD), chronic GVHD or an overt autoimmune disease (e.g. hemolytic anemia) requiring high doses of glucocorticosteroid (\>0.5 mg/kg/day prednisone or its equivalent) as treatment * Patients who are pregnant * Patients with severe comorbidities, not related to their EBV-associated malignancy, that would be expected to preclude their survival for the 6 weeks required to assess response of T cell therapy * Patients eligible for MSK protocol #16-803 (EBV-CTL-201)

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR)From Day 1 through 65.3 months after Day 1 doseThe ORR is defined as percentage of participants with best overall response of complete remission/response (CR) or partial remission/response (PR) based on investigator's assessment. For participants with clinically and/or radiologically evident EBV LPD or malignancies, CR is complete resolution of all clinical and radiologic evidence of lymphoma, confirmed by biopsy of the affected tissues when indicated, lasting for at least 3 weeks following completion of a cycle of tabelecleucel; and PR is a 50 % or greater reduction in the size of all lymphomatous lesions as determined by computed tomography (CT) or magnetic resonance imaging (MRI) measurements of tumor volume, which was maintained for at least 3 weeks following completion of a cycle of tabelecleucel. For participants without clinically and/or radiologically evident tumors with increasing levels of EBV DNA, CR is clearance of EBV without subsequent development of EBV+ LPD; and PR is at least a 10-fold decrease in EBV DNA levels.

Secondary

MeasureTime frameDescription
Overall Survival (OS)From Day 1 through 65.3 months after Day 1 doseThe OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.
OS Rate at 12 MonthsFrom Day 1 through 12 months after Day 1 dosePercentage of participants with OS at 12 months are reported. The OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.
OS Follow-up TimeFrom Day 1 through 65.3 months after Day 1 doseThe OS follow-up time are reported. The OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.
Time to Response (TTR)From Day 1 through 65.3 months after Day 1 doseThe TTR is defined as the time from the date of the first dose of tabelecleucel to the date of a PR or CR, whichever occurred first. For participants with clinically and/or radiologically evident EBV LPD or malignancies, CR is defined as complete resolution of all clinical and radiologic evidence of lymphoma, confirmed by biopsy of the affected tissues when indicated, lasting for at least 3 weeks following completion of a cycle of tabelecleucel; and a PR is defined as a 50 % or greater reduction in the size of all lymphomatous lesions as determined by CT or MRI scan measurements of tumor volume, which was maintained for at least 3 weeks following completion of a cycle of tabelecleucel. For participants without clinically and/or radiologically evident tumors with increasing levels of EBV DNA, CR is defined as clearance of EBV without subsequent development of EBV+ LPD; and PR is defined as at least a 10-fold decrease in EBV DNA levels.

Countries

United States

Participant flow

Participants by arm

ArmCount
HCT EBV+ PTLD R/R Rituximab
Participants with EBV+ PTLD HCT who were R/R to rituximab received IV infusion of tabelecleucel 2 × 10\^6 T-cells/kg on Days 1, 8, and 15 and were observed for 3 weeks. After the observation period, additional courses (2 courses) may have been provided in the absence of disease progression or unacceptable toxicity.
25
SOT EBV+ PTLD R/R Rituximab
Participants with EBV+PTLD SOT who were R/R to rituximab or R/R to rituximab and chemotherapy received IV infusion of tabelecleucel 2 × 10\^6 T-cells/kg on Days 1, 8, and 15 and were observed for 3 weeks. After 3 week observation period, additional courses (2 courses) may have been provided in the absence of disease progression or unacceptable toxicity.
10
EBV+ Lymphoma
Participants with EBV+ lymphoma received IV infusion of tabelecleucel 2 × 10\^6 T-cells/kg on Days 1, 8, and 15 and were observed for 3 weeks. After the observation period, additional courses (2 courses) may have been provided in the absence of disease progression or unacceptable toxicity.
25
EBV+ NPC
Participants with EBV+ NPC received IV infusion of tabelecleucel 2 × 10\^6 T-cells/kg on Days 1, 8, and 15 and were observed for 3 weeks. After the observation period, additional courses (2 courses) may have been provided in the absence of disease progression or unacceptable toxicity.
14
Total74

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008
Overall StudyAdverse Event000001000
Overall StudyDeath6311001010
Overall StudyOther520010301
Overall StudyPhysician Decision3211008131
Overall StudyWithdrawal by Subject000100100

Baseline characteristics

CharacteristicHCT EBV+ PTLD R/R RituximabSOT EBV+ PTLD R/R RituximabEBV+ LymphomaEBV+ NPCTotal
Age, Customized
<18 years
5 Participants4 Participants2 Participants2 Participants13 Participants
Age, Customized
>=18 years
20 Participants6 Participants23 Participants12 Participants61 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants0 Participants1 Participants0 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants0 Participants3 Participants3 Participants10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
19 Participants10 Participants21 Participants11 Participants61 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants5 Participants11 Participants17 Participants
Race (NIH/OMB)
Black or African American
3 Participants1 Participants1 Participants2 Participants7 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants0 Participants4 Participants0 Participants8 Participants
Race (NIH/OMB)
White
17 Participants9 Participants15 Participants1 Participants42 Participants
Sex: Female, Male
Female
11 Participants7 Participants15 Participants4 Participants37 Participants
Sex: Female, Male
Male
14 Participants3 Participants10 Participants10 Participants37 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
46 / 87
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
46 / 87

Outcome results

Primary

Objective Response Rate (ORR)

The ORR is defined as percentage of participants with best overall response of complete remission/response (CR) or partial remission/response (PR) based on investigator's assessment. For participants with clinically and/or radiologically evident EBV LPD or malignancies, CR is complete resolution of all clinical and radiologic evidence of lymphoma, confirmed by biopsy of the affected tissues when indicated, lasting for at least 3 weeks following completion of a cycle of tabelecleucel; and PR is a 50 % or greater reduction in the size of all lymphomatous lesions as determined by computed tomography (CT) or magnetic resonance imaging (MRI) measurements of tumor volume, which was maintained for at least 3 weeks following completion of a cycle of tabelecleucel. For participants without clinically and/or radiologically evident tumors with increasing levels of EBV DNA, CR is clearance of EBV without subsequent development of EBV+ LPD; and PR is at least a 10-fold decrease in EBV DNA levels.

Time frame: From Day 1 through 65.3 months after Day 1 dose

Population: Full analysis set included all participants who received at least one dose of tabelecleucel.

ArmMeasureValue (NUMBER)
HCT EBV+ PTLD R/R RituximabObjective Response Rate (ORR)68.0 Percentage of participants
SOT EBV+ PTLD R/R RituximabObjective Response Rate (ORR)50.0 Percentage of participants
EBV+ LymphomaObjective Response Rate (ORR)16.0 Percentage of participants
EBV+ NPCObjective Response Rate (ORR)14.3 Percentage of participants
Secondary

OS Follow-up Time

The OS follow-up time are reported. The OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.

Time frame: From Day 1 through 65.3 months after Day 1 dose

Population: Full analysis set included all participants who received at least one dose of tabelecleucel.

ArmMeasureValue (MEDIAN)
HCT EBV+ PTLD R/R RituximabOS Follow-up Time23.33 Months
SOT EBV+ PTLD R/R RituximabOS Follow-up Time14.88 Months
EBV+ LymphomaOS Follow-up Time7.20 Months
EBV+ NPCOS Follow-up Time16.0 Months
Secondary

OS Rate at 12 Months

Percentage of participants with OS at 12 months are reported. The OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.

Time frame: From Day 1 through 12 months after Day 1 dose

Population: Full analysis set included all participants who received at least one dose of tabelecleucel. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.

ArmMeasureValue (NUMBER)
HCT EBV+ PTLD R/R RituximabOS Rate at 12 Months68.0 Percentage of participants
SOT EBV+ PTLD R/R RituximabOS Rate at 12 Months60.0 Percentage of participants
EBV+ LymphomaOS Rate at 12 Months50.3 Percentage of participants
EBV+ NPCOS Rate at 12 Months77.9 Percentage of participants
Secondary

Overall Survival (OS)

The OS is defined as the time from the first dose of tabelecleucel to the date of death due to any cause. The OS was estimated using Kaplan-Meier method. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.

Time frame: From Day 1 through 65.3 months after Day 1 dose

Population: Full analysis set included all participants who received at least one dose of tabelecleucel. Participants who were lost to follow-up or still alive were censored on the last known-to-be-alive date.

ArmMeasureValue (MEDIAN)
HCT EBV+ PTLD R/R RituximabOverall Survival (OS)NA Months
SOT EBV+ PTLD R/R RituximabOverall Survival (OS)14.9 Months
EBV+ LymphomaOverall Survival (OS)12.3 Months
EBV+ NPCOverall Survival (OS)NA Months
Secondary

Time to Response (TTR)

The TTR is defined as the time from the date of the first dose of tabelecleucel to the date of a PR or CR, whichever occurred first. For participants with clinically and/or radiologically evident EBV LPD or malignancies, CR is defined as complete resolution of all clinical and radiologic evidence of lymphoma, confirmed by biopsy of the affected tissues when indicated, lasting for at least 3 weeks following completion of a cycle of tabelecleucel; and a PR is defined as a 50 % or greater reduction in the size of all lymphomatous lesions as determined by CT or MRI scan measurements of tumor volume, which was maintained for at least 3 weeks following completion of a cycle of tabelecleucel. For participants without clinically and/or radiologically evident tumors with increasing levels of EBV DNA, CR is defined as clearance of EBV without subsequent development of EBV+ LPD; and PR is defined as at least a 10-fold decrease in EBV DNA levels.

Time frame: From Day 1 through 65.3 months after Day 1 dose

Population: Full analysis set included all participants who received at least one dose of tabelecleucel. Participants who achieved CR or PR were analyzed for this outcome measure.

ArmMeasureValue (MEDIAN)
HCT EBV+ PTLD R/R RituximabTime to Response (TTR)1.77 Months
SOT EBV+ PTLD R/R RituximabTime to Response (TTR)3.32 Months
EBV+ LymphomaTime to Response (TTR)2.28 Months
EBV+ NPCTime to Response (TTR)1.76 Months

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026