A Study Evaluating UCART019 in Patients With Relapsed or Refractory CD19+ Leukemia and Lymphoma
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|ClinicalTrials.gov Identifier: NCT03166878|
Recruitment Status : Recruiting
First Posted : May 25, 2017
Last Update Posted : June 23, 2017
Autologous T cells engineered to express chimeric antigen receptors (CARs) against leukemia antigens such as CD19 on B cells have shown promising results for the treatment of relapsed or refractory B-cell malignancies. However, a subset of cancer patients especially heavily pretreated cancer patients could be unable to receive this highly active therapy because of failed expansion. Moreover, it is still a challenge to manufacture an effective therapeutic product for infant cancer patients due to their small blood volume. On the other hand, the inherent characters of autologous CAR-T cell therapy including personalized autologous T cell manufacturing and widely "distributed" approach result in the difficulty of industrialization of autologous CAR-T cell therapy. Universal CD19-specific CAR-T cell(UCART019),derived from one or more healthy unrelated donors but could avoid graft-versus-host-disease (GVHD) and minimize their immunogenicity, is undoubtedly an alternative option to address above-mentioned issues. We have generated gene-disrupted allogeneic CD19-directed BBζ CAR-T cells (termed UCART019) by combining the lentiviral delivery of CAR and CRISPR RNA electroporation to disrupt endogenous TCR and B2M genes simultaneously and will test whether it can evade host-mediated immunity and deliver antileukemic effects without GVHD.
The main goal of the phase 1 portion of this phase 1/2 trial is to evaluate the safety and tolerability of several doses of UCART019 in patients with relapsed or refractory CD19+ leukemia and lymphoma, so as to establish the recommended dose and/or schedule of UCART019 for phase 2 portion. The recommended Phase 2 dose will be defined as the highest dose level of UCART019 that induced DLT in fewer than 33% of patients (i.e., one dose level below that which induced DLT in at least two of six patients). Phase 2 portion of the trial will not be initiated until the recommended Phase 2 dose is determined. In the phase 2 portion of this trial, we will mainly determine if UCART019 help the body's immune system eliminate malignant B-cells. Safety of UCART019 and impact of this treatment on survival will also be observed.
|Condition or disease||Intervention/treatment||Phase|
|B Cell Leukemia B Cell Lymphoma||Biological: UCART019||Phase 1 Phase 2|
- To evaluate the feasibility and safety of UCART019 in patients with relapsed or refractory CD19+ leukemia and lymphoma.
- To evaluate the duration of in vivo persistence of adoptively transferred T cells, and the phenotype of persisting T cells. Real Time polymerase chain receptor (RT-PCR) analysis of peripheral blood(PB), bone marrow(BM) and lymph node will be used to detect and quantify survival of UCART019 over time.
- For patients with detectable disease, measure anti-tumor response due to UCART019 cell infusions.
- Determine if cellular or humoral host immunity develops against the murine anti-CD19, and assess correlation with loss of detectable UCART019 (loss of engraftment).
OUTLINE: This is a phase I, dose-escalation study of allogeneic CD19 CAR-T-cells followed by a phase II study.
The UCART019 will be administered by i.v. injection over 20-30 minutes as a using a "split dose" approach to dosing: 10% on day 0, 30% on day 1 and 60% on day 2.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||80 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Phase I/II Study to Determine the Safety, Tolerability, Biological Activity and Efficacy of Universal CRISPR-Cas9 Gene-Editing CAR-T Cells Targeting CD19(UCART019) in Patients With Relapsed or Refractory CD19+ Leukemia and Lymphoma|
|Estimated Study Start Date :||June 2017|
|Estimated Primary Completion Date :||May 2022|
|Estimated Study Completion Date :||May 2022|
Experimental: Treatment (UCART019)
The UCART019 will be administered by i.v. injection over 20-30 minutes as a using a "split dose" approach to dosing: Day 0: 10% of total dose. Day 1: 30% of total dose if patient is stable (no significant toxicity) from prior dose. D2: 60% of total dose if patient is stable (no significant toxicity) from prior dose
Day 0: 10% of total dose Day 1: 30% of total dose if patient is stable (no significant toxicity) from prior dose. D2: 60% of total dose if patient is stable (no significant toxicity) from prior dose
- Number of Participants with Severe/Adverse Events as a Measure of Safety and Tolerability [ Time Frame: 24 weeks ]
- Highest dose of UCART019 that is estimated to result in defined DLT with the exception of allowable UCART019 infusion related 'expected' AEs, using CTCAE 4.0, in less than 1/3 patients [ Time Frame: 8 weeks ]
- Copy numbers of UCAR019 in PB, BM and lymph nodes [ Time Frame: 24 weeks ]
- Objective response rate of complete remission and partial remission.Descriptive statistics will be used [ Time Frame: 24 weeks ]
- Overall survival.Descriptive statistics will be used [ Time Frame: 24 weeks ]
- Progression free survival.Descriptive statistics will be used [ Time Frame: 24 weeks ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03166878
|Biotherapeutic Department and Hematology Department of Chinese PLA General Hospital||Recruiting|
|Beijing, Beijing, China, 100853|
|Contact: Weidong Han, Dr. 86-10-13651392893 email@example.com|
|Contact: Daihong Liu, Dr. 86-10-55499136 firstname.lastname@example.org|
|Principal Investigator: Weidong Han, Dr.|
|Principal Investigator: Daihong Liu, Dr.|