NCT07451054 · University of Pennsylvania
CD45BE-HSPC + CART-45 Cells
What this study is about
This is a phase 1, where both patients and doctors know the treatment given, dose-finding study to assess the safety, feasibility, how the drug moves through the body and preliminary effectiveness of autologous base edited anti-CD45 CAR T cells (referred to as "CART-45 cells") following an autologous transplant of CD45 base edited hematopoietic stem and progenitor cells (referred to as "CD45BE-HSPC") in patients with relapsed or refractory hematologic malignancies.
View original scientific description
This is a phase 1, open-label, dose-finding study to assess the safety, feasibility, pharmacokinetics and preliminary efficacy of autologous base edited anti-CD45 CAR T cells (referred to as "CART-45 cells") following an autologous transplant of CD45 base edited hematopoietic stem and progenitor cells (referred to as "CD45BE-HSPC") in patients with relapsed or refractory hematologic malignancies.
Interventions
BIOLOGICAL
CART-45 cells
Autologous base edited anti-CD45 CAR T cells
BIOLOGICAL
CD45BE-HSPC
CD45 base edited hematopoietic stem and progenitor cells
Primary outcome measures
Incidence of Adverse Events as assessed by CTCAE v6.0
Time frame: Up to 15 years post infusion
Type, frequency and severity of adverse events as assessed by CTCAE V6.0. Each disease-specific cohort will be analyzed separately.
Occurrence of dose-limiting toxicities (DLTs)
Time frame: 28 days post-CART-45 infusion
Unacceptable toxicity as defined by the protocol. DLTs will be evaluated separately by each disease-specific cohort.
Identification of the maximum tolerated dose (MTD)
Time frame: 28 days post-CART-45 infusion
Selected based on an isotonic regression model. The MTD will be established separately by disease-specific cohort
Identification of a recommended dose for expansion (RDE)
Time frame: 3 months post-CART-45 infusion
Evaluated by Cohort/dose level using a multi-criteria decision analysis.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 1\. Signed informed consent form 2. Male or females age ≥ 18 years 3. Disease-Specific Criteria a. B-cell Non-Hodgkin Lymphoma (B-cell NHL)- including the following sub-types: i. Patients with any of the following large B-cell lymphoma diagnoses who meet the prior treatment criteria outlined below: Diffuse Large B-cell Lymphoma not otherwise specified (DLBCL NOS); Primary Cutaneous DLBCL; Primary Mediastinal (thymic) Large B-cell Lymphoma; ALK+ Anaplastic Large B-cell Lymphoma; High-Grade B-cell Lymphoma with MYC and BCL2 and/or BCL6 rearrangements (i.e., "Double or Triple Hit"); High-grade B-cell Lymphoma, NOS; T-cell Rich B-cell Lymphoma; Transformed Follicular Lymphoma; or any aggressive B-cell lymphoma arising from indolent lymphoma. 1\. Patients must have either failed/relapsed after, or be ineligible for, prior commercial CAR T cell therapy; AND 2. Relapsed/refractory disease after at least 2 prior lines of appropriate therapy. ii. Follicular Lymphoma
- Patients must have either failed/relapsed after, or be ineligible for, prior commercial CAR T cell therapy; AND
- Relapsed/refractory disease after at least 2 prior lines of systemic therapy (not including a single agent monoclonal antibody therapy). iii. Mantle Cell Lymphoma
- Patients must have either failed/relapsed after, or be ineligible for, prior commercial CAR T cell therapy; AND
- Relapsed/refractory disease after at least 2 prior lines of systemic therapy, including a Bruton tyrosine kinase (TKI) inhibitor. Single-agent monoclonal antibody therapy does not count towards prior lines of therapy. iv. Marginal Zone Lymphoma- relapsed/refractory disease after at least 2 prior lines of appropriate therapy, including a Bruton tyrosine kinase (TKI) inhibitor. Note: Single-agent monoclonal antibody therapy does not count towards prior lines of therapy. b. T-cell Non-Hodgkin Lymphoma (T-cell NHL) i. Histologically or cytologically confirmed relapsed or refractory (r/r) mature aggressive T- and NK-cell neoplasms as defined in the 5th edition of the WHO Classification of Hematolymphoid tumors, which includes any of the following diagnoses: • Peripheral T-cell Lymphoma, NOS (PTCL-NOS); • Nodal T-cell Lymphomas with T Follicular Helper \[TFH\] Phenotype, including Follicular T cell Lymphoma, Angioimmunoblastic Lymphoma, or Anaplastic Large Cell Lymphoma (ALCL); • ALK+ or ALK-, Enteropathy-Associated T-cell Lymphoma (EATL); • Monomorphic Epitheliotropic Intestinal T-cell Lymphoma (MEITL); • Extranodal NK/T-cell Lymphoma; • Primary Cutaneous T-cell Lymphoma (CTCL); • Transformed Mycosis Fungoides (tMF) without blood involvement; • Primary Cutaneous Aggressive Epidermotropic CD8+ Cytotoxic T-Cell Lymphoma; • Subcutaneous Panniculitis-like T-cell Lymphoma. ii. Must have received at least one prior line of systemic therapy for their lymphoma. Additional prior treatment provisions required for the following indications: 1\. Participants with Anaplastic Large Cell Lymphoma (ALCL) must have received prior Brentuximab vedotin, unless contraindicated. 2\. Participants with Subcutaneous Panniculitis-like T-cell Lymphoma or Transformed Mycosis Fungoides (tMF) must have received at least 2 prior lines of systemic therapy. c. Hodgkin Lymphoma (HL) i. Patients with histologically proven classical Hodgkin Lymphoma that is CD45 positive by IHC or flow cytometry by a CLIA certified laboratory; AND ii. Relapsed/refractory disease after at least 2 prior lines of therapy which must include the following:
- Brentuximab vedotin and immune checkpoint inhibitors (unless contraindicated); AND
- Autologous stem cell transplant (unless patient has chemorefractory disease to salvage treatment) d. Large Cell Transformation of CLL (Richter's Transformation) i. Patients must be primary refractory or received at least 1 prior line of treatment for Richter's Transformation. 4\. Patients are appropriate candidates for autologous HSCT as per physician-investigator clinical discretion 5\. Patients with relapsed disease after prior allogeneic SCT must meet the following criteria: a. Have no active GVHD and require no immunosuppression b. Are more than 6 months from transplant at the time of physician-investigator confirmation of eligibility 6\. Adequate organ function defined as:
- Serum creatinine ≤ 1.5x ULN or estimated creatinine clearance ≥ 35 mL/min and not on dialysis
- ALT/AST ≤ 3 x ULN
- Direct bilirubin ≤ 2.0 mg/dl; for patients with Gilbert's syndrome direct bilirubin must be ≤ 3.0 mg/dl
- Left Ventricular Ejection Fraction (LVEF) ≥ 40% confirmed by ECHO/MUGA
- DLCO \> 45% predicted value; adjusted for level of hemoglobin
- Must have minimum level of pulmonary reserve defined as ≤ Grade 1 dyspnea and pulse oxygen \> 92% on room air 7. ECOG Performance Status 0-1
Exclusion criteria
- Active hepatitis B or hepatitis C infection
- Any active, uncontrolled infection.
- Class III/IV cardiovascular disability according to the New York Heart Association Classification.
- Clinically apparent arrhythmia or arrhythmias that are not stable on medical management within two weeks of physician-investigator confirmation of eligibility.
- Severe, active co-morbidity that, in the opinion of the physician-investigator, would preclude participation in this study.
- Prior or concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen.
- Active acute or chronic GVHD requiring systemic therapy.
- Dependence on systemic steroids or immunosuppressant medications. For additional details regarding use of steroid and immunosuppressant medications.
- Active CNS involvement. Patients with a history of CNS involvement that was successfully treated are eligible. A CNS evaluation is only required for eligibility if a subject is experiencing signs/symptoms of CNS involvement.
- Patients with evidence of a circulating T-cell malignancy as measured by flow cytometry.
- History of allergy or hypersensitivity to study product excipients (human serum albumin, DMSO, and Dextran 40).
- Active autoimmune disease requiring systemic immunosuppressive treatment equivalent to ≥ 10mg of prednisone. Patients with autoimmune neurologic diseases (such as MS) will be excluded.
- Pregnant or nursing (lactating) patients. Participants of reproductive potential must agree to use acceptable birth control methods.
Where
- Philadelphia, Pennsylvania
Collaborators
Kite, A Gilead Company
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 10, 2026 · Source of record for eligibility and locations