This Phase I study will evaluate the safety of autologous Epstein-Barr virus-specific T lymphocytes modified to express a constitutively active IL7 receptor (C7R) and a chimeric antigen receptor (CAR) for CD30 (C7R.CD30-CAR-EBVSTs) in patients with relapsed or refractory CD30-positive lymphomas. Participants who meet procurement eligibility criteria will undergo collection of peripheral blood mononuclear cells for manufacture of the investigational product. Participants with a successfully manufactured product who continue to meet treatment eligibility criteria will receive lymphodepleting chemotherapy followed by infusion of autologous C7R.CD30-CAR-EBVSTs. The primary objective is to evaluate safety. Secondary and exploratory objectives include evaluation of antitumor effect, expansion and persistence of the infused cells, and the association between immunological parameters, safety, and clinical response.
This is a Phase I study to evaluate the safety of autologous Epstein-Barr virus-specific T lymphocytes (EBVSTs) genetically modified to express a constitutively active interleukin-7 receptor (C7R) and a CD30-specific chimeric antigen receptor (CAR) (C7R.CD30-CAR-EBVSTs) in patients with relapsed or refractory CD30-positive lymphomas. The study will also evaluate the antitumor effect of C7R.CD30-CAR-EBVSTs, the expansion and persistence of the infused cells, and the association between immunological parameters, safety, and clinical response. Autologous CD30 CAR T cells have demonstrated clinical activity in patients with relapsed or refractory CD30-positive lymphomas but have shown limited persistence. Epstein-Barr virus-specific T lymphocytes (EBVSTs) have demonstrated long-term persistence following adoptive transfer. In this study, EBVSTs are used as the cellular platform to express both a CD30 CAR and a constitutively active IL7 receptor (C7R). The investigational cell product also provides a mechanism for rapid elimination of transduced cells if clinically indicated. Participants who meet procurement eligibility criteria will undergo collection of peripheral blood mononuclear cells for manufacture of an autologous C7R.CD30-CAR-EBVST product. Participants with a successfully manufactured product who continue to meet treatment eligibility criteria will receive lymphodepleting chemotherapy followed by intravenous infusion of C7R.CD30-CAR-EBVSTs. Participants who meet retreatment criteria, as defined in the protocol, may receive additional treatment cycles. Following treatment, participants will undergo scheduled follow-up evaluations including physical examinations, laboratory testing, and imaging studies to assess safety and disease status. Blood samples are collected at multiple time points after infusion to evaluate persistence of the infused cells. Tumor assessments are performed using imaging and, when clinically indicated, biopsy. Participants are followed longitudinally for up to 15 years after the most recent infusion.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
21
Autologous Epstein-Barr virus-specific T lymphocytes genetically modified to express a constitutively active interleukin-7 receptor (C7R), a CD30-specific chimeric antigen receptor (CAR), and an inducible caspase 9 (iC9) safety switch. The investigational product is manufactured from autologous peripheral blood mononuclear cells and administered by intravenous infusion following lymphodepleting chemotherapy.
Houston Methodist Hospital
Houston, Texas, United States
Incidence of Dose-Limiting Toxicities (DLTs)
Dose-limiting toxicity (DLT) is defined as any of the following considered possibly, probably, or definitely related to study cellular products: (1) Grade 5 event without disease progression; (2) CRS: Grade 4, or Grade 3 not improving to ≤Grade 2 within 72 hours despite therapy; (3) ICANS: Grade 4, or Grade 3 not improving within 72 hours despite therapy; (4) Grade ≥3 IEC-HS; (5) Grade 4 neutropenia or thrombocytopenia not attributable to underlying disease or lymphodepleting chemotherapy and not improving to ≤Grade 2 within 42 days, or Grade 3 thrombocytopenia with clinically significant major bleeding; (6) Grade ≥3 vital organ toxicity (except transient hepatic or renal abnormalities improving to ≤Grade 2 within 7 days); (7) other Grade 3 toxicities not attributable to underlying disease or lymphodepleting chemotherapy and not resolving to ≤Grade 2 within 72 hours; (8) Grade ≥2 allergic reaction to T-cell infusion.
Time frame: From initiation of lymphodepleting chemotherapy through 28 days following the initial investigational T-cell infusion.
Antitumor Effect
Antitumor effect will be assessed by investigator evaluation of objective response (complete response and partial response) using Lugano criteria.\[
Time frame: 4 to 6 weeks after the initial C7R.CD30-CAR-EBVST infusion.
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