scholarly journals 4SCAR‐GD2‐modified T‐cell therapy in neuroblastoma with MYCN amplification: A case report with over 4‐year follow‐up data

2020 ◽  
Vol 4 (1) ◽  
pp. 55-58 ◽  
Author(s):  
Xiao Xu ◽  
Wen Zhao ◽  
Zhixia Yue ◽  
Maoquan Qin ◽  
Mei Jin ◽  
...  
Keyword(s):  
Case Report ◽  
T Cell ◽  
Cell Therapy ◽  
Mycn Amplification ◽  
T Cell Therapy

scholarly journals Long-Term Follow-Up of Anti-CD19 Chimeric Antigen Receptor T-Cell Therapy

2020 ◽  
Vol 38 (32) ◽  
pp. 3805-3815
Author(s):  
Kathryn M. Cappell ◽  
Richard M. Sherry ◽  
James C. Yang ◽  
Stephanie L. Goff ◽  
Danielle A. Vanasse ◽  
...  
Keyword(s):  
T Cell ◽  
Cell Therapy ◽  
B Cell ◽  
Cell Lymphoma ◽  
B Cell Lymphoma ◽  
T Cell Therapy ◽  
Car T Cell ◽  
Car T

PURPOSE Anti-CD19 chimeric antigen receptors (CARs) are artificial fusion proteins that cause CD19-specific T-cell activation. Durability of remissions and incidence of long-term adverse events are critical factors determining the utility of anti-CD19 CAR T-cell therapy, but long-term follow-up of patients treated with anti-CD19 CAR T cells is limited. This work provides the longest follow-up of patients in remission after anti-CD19 CAR T-cell therapy. METHODS Between 2009 and 2015, we administered 46 CAR T-cell treatments to 43 patients (ClinicalTrials.gov identifier: NCT00924326 ). Patients had relapsed B-cell malignancies of the following types: diffuse large B-cell lymphoma or primary mediastinal B-cell lymphoma (DLBCL/PMBCL; n = 28), low-grade B-cell lymphoma (n = 8), or chronic lymphocytic leukemia (CLL; n = 7). This report focuses on long-term outcomes of these patients. The CAR used was FMC63-28Z; axicabtagene ciloleucel uses the same CAR. Cyclophosphamide plus fludarabine conditioning chemotherapy was administered before CAR T cells. RESULTS The percentages of CAR T-cell treatments resulting in a > 3-year duration of response (DOR) were 51% (95% CI, 35% to 67%) for all evaluable treatments, 48% (95% CI, 28% to 69%) for DLBCL/PMBCL, 63% (95% CI, 25% to 92%) for low-grade lymphoma, and 50% (95% CI, 16% to 84%) for CLL. The median event-free survival of all 45 evaluable treatments was 55 months. Long-term adverse effects were rare, except for B-cell depletion and hypogammaglobulinemia. Median peak blood CAR-positive cell levels were higher among patients with a DOR of > 3 years (98/µL; range, 9-1,217/µL) than among patients with a DOR of < 3 years (18/µL; range, 0-308/μL, P = .0051). CONCLUSION Complete remissions of a variety of B-cell malignancies lasting ≥ 3 years occurred after 51% of evaluable anti-CD19 CAR T-cell treatments. Remissions of up to 9 years are ongoing. Late adverse events were rare.

scholarly journals Feasibility, and Efficacy of Donor-Derived cd19-Targeted Car t-Cell Therapy in Refractory/Relapsed(r/r)b-Cell Acute Lymphoblastic Leukemia (b-all) Patients

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 4-6
Author(s):  
Xian Zhang ◽  
Junfang Yang ◽  
Wenqian Li ◽  
Gailing Zhang ◽  
Yunchao Su ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cell Therapy ◽  
T Cell Therapy ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Car T ◽  
Grade 3

Backgrounds As CAR T-cell therapy is a highly personalized therapy, process of generating autologous CAR-T cells for each patient is complex and can still be problematic, particularly for heavily pre-treated patients and patients with significant leukemia burden. Here, we analyzed the feasibility and efficacy in 37 patients with refractory/relapsed (R/R) B-ALL who received CAR T-cells derived from related donors. Patients and Methods From April 2017 to May 2020, 37 R/R B-ALL patients with a median age of 19 years (3-61 years), were treated with second-generation CD19 CAR-T cells derived from donors. The data was aggregated from three clinical trials (www.clinicaltrials.gov NCT03173417; NCT02546739; and www.chictr.org.cn ChiCTR-ONC-17012829). Of the 37 patients, 28 were relapsed following allogenic hematopoietic stem cell transplant (allo-HSCT) and whose lymphocytes were collected from their transplant donors (3 HLA matched sibling and 25 haploidentical). For the remaining 9 patients without prior transplant, the lymphocytes were collected from HLA identical sibling donors (n=5) or haploidentical donors (n=4) because CAR-T cells manufacture from patient samples either failed (n=5) or blasts in peripheral blood were too high (&gt;40%) to collect quality T-cells. The median CAR-T cell dose infused was 3×105/kg (1-30×105/kg). Results For the 28 patients who relapsed after prior allo-HSCT, 27 (96.4%) achieved CR within 30 days post CAR T-cell infusion, of which 25 (89.3%) were minimal residual disease (MRD) negative. Within one month following CAR T-cell therapy, graft-versus-host disease (GVHD) occurred in 3 patients including 1 with rash and 2 with diarrhea. A total of 19 of the 28 (67.9%) patients had cytokine release syndrome (CRS), including two patients (7.1%) with Grade 3-4 CRS. Four patients had CAR T-cell related neurotoxicity including 3 with Grade 3-4 events. With a medium follow up of 103 days (1-669days), the median overall survival (OS) was 169 days (1-668 days), and the median leukemia-free survival (LFS) was 158 days (1-438 days). After CAR T-cell therapy, 15 patients bridged into a second allo-HSCT and one of 15 patients (6.7%) relapsed following transplant, and two died from infection. There were 11 patients that did not receive a second transplantation, of which three patients (27.3%) relapsed, and four parents died (one due to relapse, one from arrhythmia and two from GVHD/infection). Two patients were lost to follow-up. The remaining nine patients had no prior transplantation. At the time of T-cell collection, the median bone marrow blasts were 90% (range: 18.5%-98.5%), and the median peripheral blood blasts were 10% (range: 0-70%). CR rate within 30 days post CAR-T was 44.4% (4/9 cases). Six patients developed CRS, including four with Grade 3 CRS. Only one patient had Grade 3 neurotoxicity. No GVHD occurred following CAR T-cell therapy. Among the nine patients, five were treated with CAR T-cells derived from HLA-identical sibling donors and three of those five patients achieved CR. One patient who achieved a CR died from disseminated intravascular coagulation (DIC) on day 16. Two patients who achieved a CR bridged into allo-HSCT, including one patient who relapsed and died. One of two patients who did not response to CAR T-cell therapy died from leukemia. Four of the nine patients were treated with CAR T-cells derived from haploidentical related donors. One of the four cases achieved a CR but died from infection on day 90. The other three patients who had no response to CAR T-cell therapy died from disease progression within 3 months (7-90 days). Altogether, seven of the nine patients died with a median time of 19 days (7-505 days). Conclusions We find that manufacturing CD19+ CAR-T cells derived from donors is feasible. For patients who relapse following allo-HSCT, the transplant donor derived CAR-T cells are safe and effective with a CR rate as high as 96.4%. If a patient did not have GVHD prior to CAR T-cell therapy, the incidence of GVHD following CAR T-cell was low. Among patients without a history of transplantation, an inability to collect autologous lymphocytes signaled that the patient's condition had already reached a very advanced stage. However, CAR T-cells derived from HLA identical siblings can still be considered in our experience, no GVHD occurred in these patients. But the efficacy of CAR T-cells from haploidentical donors was very poor. Disclosures No relevant conflicts of interest to declare.

scholarly journals Allogeneic Hematopoietic Cell Transplantation Is Critical to Maintain Remissions after CD19-CAR T-Cell Therapy for Pediatric ALL: A Single Center Experience

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 39-40
Author(s):  
Aimee C Talleur ◽  
Renee M. Madden ◽  
Amr Qudeimat ◽  
Ewelina Mamcarz ◽  
Akshay Sharma ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cell Therapy ◽  
T Cell Therapy ◽  
Allogeneic Hct ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Car T

CD19-CAR T-cell therapy has shown remarkable efficacy in pediatric patients with relapsed and/or refractory B-cell acute lymphoblastic leukemia (r/r ALL). Despite high short-term remission rates, many responses are not durable and the best management of patients who achieve a complete response (CR) post-CAR T-cell therapy remains controversial. In particular, it is unclear if these patients should be observed or proceed to consolidative allogeneic hematopoietic cell transplantation (HCT). To address this question, we reviewed the clinical course of all patients (n=22) who received either an investigational CAR T-cell product (Phase I study: SJCAR19 [NCT03573700]; n=12) or tisagenlecleucel (n=10) at our institution. The investigational CD19-CAR T cells were generated by a standard cGMP-compliant procedure using a lentiviral vector encoding a 2nd generation CD19-CAR with a FMC63-based CD19 binding domain, CD8a stalk and transmembrane domain, and 41BB.ζ signaling domain. Patients received therapy between 8/2018 and 3/2020. All products met manufacturing release specifications. Within the entire cohort, median age at time of infusion was 12.3 years old (range: 1.8-23.5) and median pre-infusion marrow burden using flow-cytometry minimal residual disease (MRD) testing was 6.8% (range: 0.003-100%; 1 patient detectable by next-generation sequencing [NGS] only). All patients received lymphodepleting chemotherapy (fludarabine, 25mg/m2 daily x3, and cyclophosphamide, 900mg/m2 daily x1), followed by a single infusion of CAR T-cells. Phase I product dosing included 1x106 CAR+ T-cells/kg (n=6) or 3x106 CAR+ T-cells/kg (n=6). Therapy was well tolerated, with a low incidence of cytokine release syndrome (any grade: n=10; Grade 3-4: n=4) and neurotoxicity (any grade: n=8; Grade 3-4: n=3). At 4-weeks post-infusion, 15/22 (68.2%) patients achieved a CR in the marrow, of which 13 were MRDneg (MRDneg defined as no detectable leukemia by flow-cytometry, RT-PCR and/or NGS, when available). Among the 2 MRDpos patients, 1 (detectable by NGS only) relapsed 50 days after CAR T-cell infusion and 1 died secondary to invasive fungal infection 35 days after infusion. Within the MRDneg cohort, 6/13 patients proceeded to allogeneic HCT while in MRDneg/CR (time to HCT, range: 1.8-2.9 months post-CAR T-cell infusion). All 6 HCT recipients remain in remission with a median length of follow-up post-HCT of 238.5 days (range 19-441). In contrast, only 1 (14.3%) patient out of 7 MRDneg/CR patients who did not receive allogeneic HCT, remains in remission with a follow up of greater 1 year post-CAR T-cell infusion (HCT vs. no HCT: p&lt;0.01). The remaining 6 patients developed recurrent detectable leukemia within 2 to 9 months post-CAR T-cell infusion (1 patient detectable by NGS only). Notably, recurring leukemia remained CD19+ in 4 of 5 evaluable patients. All 4 patients with CD19+ relapse received a 2nd CAR T-cell infusion (one in combination with pembrolizumab) and 2 achieved MRDneg/CR. There were no significant differences in outcome between SJCAR19 study participants and patients who received tisagenlecleucel. With a median follow up of one year, the 12 month event free survival (EFS) of all 22 patients is 25% (median EFS: 3.5 months) and the 12 month overall survival (OS) 70% (median OS not yet reached). In conclusion, infusion of investigational and FDA-approved autologous CD19-CAR T cells induced high CR rates in pediatric patients with r/r ALL. However, our current experience shows that sustained remission without consolidative allogeneic HCT is not seen in most patients. Our single center experience highlights not only the need to explore maintenance therapies other than HCT for MRDneg/CR patients, but also the need to improve the in vivo persistence of currently available CD19-CAR T-cell products. Disclosures Sharma: Spotlight Therapeutics: Consultancy; Magenta Therapeutics: Other: Research Collaboration; CRISPR Therapeutics, Vertex Pharmaceuticals, Novartis: Other: Clinical Trial PI. Velasquez:St. Jude: Patents & Royalties; Rally! Foundation: Membership on an entity's Board of Directors or advisory committees. Gottschalk:Patents and patent applications in the fields of T-cell & Gene therapy for cancer: Patents & Royalties; TESSA Therapeutics: Other: research collaboration; Inmatics and Tidal: Membership on an entity's Board of Directors or advisory committees; Merck and ViraCyte: Consultancy.

scholarly journals Highly Favorable Outcomes with Salvage Radiation Therapy Followed By Autologous Transplant in Relapsed and Refractory DLBCL Patients with Minimal or No Response to Salvage Chemotherapy

Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 4137-4137
Author(s):  
Joanna C Yang ◽  
Karen Chau ◽  
Michael Scordo ◽  
Craig S. Sauter ◽  
Joachim Yahalom
Keyword(s):  
T Cell ◽  
Cell Therapy ◽  
B Cell Lymphoma ◽  
Salvage Chemotherapy ◽  
Refractory Disease ◽  
T Cell Therapy ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Car T

Introduction: For patients with relapsed or primary refractory (rel/ref) diffuse large B-cell lymphoma (DLBCL) who respond to salvage chemotherapy, high-dose chemotherapy and autologous hematopoietic cell transplantation (HDT-AHCT) is considered standard of care. Patients with refractory disease to salvage chemotherapy, defined as stable disease (SD) or progressive disease (PD), by functional imaging are ineligible for HDT-AHCT, and have a poor prognosis. In practice, we have attempted to salvage these patients with radiation therapy (RT) to residual sites of active disease prior to consolidative HDT-AHCT. The outcome of this unique combined modality salvage paradigm has not been previously reported. Methods: We retrospectively reviewed all patients with rel/ref DLBCL who received salvage chemotherapy followed by salvage RT and HDT-AHCT between the years of 2000 and 2017 at a single center. Only patients with SD or PD as defined on the 5-point Deauville scale after salvage chemotherapy and who had at least 1 year of follow-up were included in this analysis. The second-line age-adjusted International Prognostic Index (sAAIPI) was determined at the time of initiation of salvage chemotherapy.Survival functions were estimated by the Kaplan-Meier method and compared using a log-rank test. Results: Thirty-six patients, 12 with relapsed and 24 with primary refractory disease, with a median age of 44 years (range: 19-68 years) were analyzed. Twenty-three patients had DLBCL while 13 had primary mediastinal B-cell lymphoma (PMBCL). The majority of patients had KPS 80-100 (n=32, 89%), 0-1 extranodal sites (n=30, 83%), and normal LDH (n=21, 58%). The sAAIPI scores for this cohort were as follows: 0 (n=10), 1 (n=21), 2 (n=4), and 3 (n=1). All patients received salvage chemotherapy with subsequent functional imaging showing SD (n=32) and PD (n=4) and then went on to receive salvage RT to the sites of active disease. Median RT dose was 39.6Gy (range: 30-54Gy). Six patients also received TBI as part of their conditioning regimen prior to HDT-AHCT. With median follow up of 4.0 years (range: 1.0-12.3 years) for survivors, 4-year relapse-free survival (RFS) was 75.6% and 4-year overall survival (OS) was 80.3% (Figure 1a). There was no significant difference in 4-year RFS for patients with relapsed versus primary refractory disease (80.2% vs 74.8%, p=0.59). PMBCL patients had better RFS than DLBCL patients (92.3% vs 67.8%, p=0.12). Using the composite sAAIPI score was highly prognostic with worse outcomes for patients with higher risk sAAIPI scores. By sAAIPI score, 4-year RFS was 80.0% for a score of 0, 90.2% for a score of 1, and 0% for scores of 2 and 3. Patients with low- and low-intermediate risk sAAIPI scores of 0 and 1 had improved RFS as compared to patients with sAAIPI scores of 2 and 3 (87.0% vs 0%, p<0.0001 (Figure 1b). Conclusions: Patients with chemorefractory rel/ref DLBCL who have had minimal or no response to systemic salvage therapy may benefit from salvage RT to the residual PET-avid disease followed by HDT-AHCT, particularly if their sAAIPI score is ≤ 1. The outcome of this retrospective cohort is markedly superior to outcomes described in the literature for this high-risk population and represents a promising treatment paradigm to be further explored. Emerging data suggest similar patients may benefit from CAR T-cell therapy. Given the limited availability and high cost of CAR T-cell therapy, we suggest there may be a role for sequencing this combined-modality salvage paradigm prior to CAR T-cell therapy in order to provide these poor-risk patients with an additional line of therapy. Disclosures Scordo: Angiocrine Bioscience, Inc.: Consultancy; McKinsey & Company: Consultancy. Sauter:Sanofi-Genzyme: Consultancy, Research Funding; GSK: Consultancy; Spectrum Pharmaceuticals: Consultancy; Novartis: Consultancy; Genmab: Consultancy; Precision Biosciences: Consultancy; Kite/Gilead: Consultancy; Celgene: Consultancy; Juno Therapeutics: Consultancy, Research Funding.

Quality of life (QOL) in patients undergoing CAR-T therapy versus stem cell transplant (SCT).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 6594-6594 ◽  
Author(s):  
Surbhi Sidana ◽  
Amylou C. Dueck ◽  
Michelle Burtis ◽  
Joan M. Griffin ◽  
Gita Thanarajasingam ◽  
...  
Keyword(s):  
T Cell ◽  
Cell Therapy ◽  
Cell Transplant ◽  
Short Term ◽  
T Cell Therapy ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Significant Difference ◽  
Car T

6594 Background: Given the significant short-term adverse effects of CAR-T cell therapy, it is important to evaluate its impact on QOL of patients in addition to efficacy, compared with established forms of cellular therapy like SCT. Methods: QOL was evaluated prospectively in patients undergoing CAR-T therapy, autoSCT & alloSCT for hematologic malignancies. QOL was assessed with FACT-G at baseline, 2 weeks and monthly for 6 months thereafter. Functional well-being (FWB), physical WB (PWB) emotional WB (EWB) & social WB (SWB) and change over time were compared across groups. Results: 45 patients were recruited (CAR-T: 10; Auto SCT: 22; Allo SCT: 13) with follow up for 2 weeks & 1 month available for 23 &15 patients, respectively (Table). There was no statistically significant difference in baseline total QOL scores (p=0.13), though scores were lower in the alloSCT group (85,84,68). EWB &FWB were numerically higher in the CAR-T group, followed by autoSCT group. At 2 weeks, overall QOL decreased by only 2 points in CAR-T group vs. 22 & 18 points in auto & alloSCT groups (p=0.09). Change in PWB vs. baseline was less pronounced in the CAR-T group (-1, -9, -13, p=0.03). At 1 month, overall QOL was 6 points lower than baseline in CAR-T group vs. 3 and 14 points lower in auto & alloSCT groups, respectively (p=0.34). Importantly, PWB had at least returned to baseline in the CAR-T group. Conclusions: Preliminary data show that patients undergoing CAR-T cell therapy do not experience a more significant decline in QOL compared with auto & allo SCT, and may experience fewer physical side effects in the short-term. Accrual & follow-up are ongoing. [Table: see text]

NCMP-02. NEUROTOXICITY RELATED TO CAR T-CELL THERAPY IN PATIENTS WITH SECONDARY CENTRAL NERVOUS SYSTEM LYMPHOMA

2021 ◽  
Vol 23 (Supplement_6) ◽  
pp. vi147-vi147
Author(s):  
Carlen Yuen ◽  
Sarah Wesley ◽  
Koen Van Besien ◽  
Jing-Mei Hsu ◽  
Ran Reshef ◽  
...  
Keyword(s):  
T Cell ◽  
Cell Therapy ◽  
Systemic Disease ◽  
Central Nervous System Lymphoma ◽  
Leptomeningeal Disease ◽  
T Cell Therapy ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Car T

Abstract INTRODUCTION Patients with secondary CNS lymphoma (SCNSL) were excluded from the pivotal trials that led to the approval of chimeric antigen receptor (CAR) T-cell therapy for relapsed/refractory (R/R) B-cell lymphomas due to concern for neurotoxicity (NT). Limited evidence exists for axicabtagene ciloleucel (axi-cel, Yescarta®) in SCNSL patients. METHODS In this retrospective study, 15 R/R lymphomas patients with SCNSL (14 DLBCL, 1 chronic lymphocytic leukemia) were treated with commercial axi-cel between March 2019 and April 2021 for systemic disease and assessed for NT using the Immune Effector Cell-Associated Neurotoxicity Syndrome (ICANS) and CTCAE toxicity grading systems. RESULTS Seven of 15 patients (47%) developed NT, all of whom had cytokine release syndrome (CRS). Four (27%) developed severe NT (Grade III-IV). In the 8 patients (53%) with active SCNSL, 6 (75%) did not develop NT and 2 (25%) developed severe NT. In the 4 severe NT patients, all had multifocal CNS disease and 3/4 (75%) had leptomeningeal disease. Two thirds of patients previously treated with RT developed severe NT (1 whole brain RT, 1 skull base). The third patient had RT to the eye. Four of 8 (50%) patients with prior intrathecal chemotherapy developed severe NT. Five patients relapsed (3 in the CNS), none of whom had NT. At 11.7 month median follow-up, 8 patients remain alive, 5 are deceased (1 from NT, 3 from progression, 1 from infection), 2 lost to follow-up. The patient who died from NT had prior temporal arteritis. Three additional patients with autoimmune disease did not develop severe NT. CONCLUSION In this limited cohort, presence of SCNSL did not increase NT incidence compared to historical outcomes of CAR T-cell therapy patients without SCNSL. This cohort will be compared to CAR T-cell therapy patients without SCNSL. Prospective studies of CAR T-cell therapy in SCNSL patients will be informative.

Long-Term Follow-Up of CD19-CAR T-Cell Therapy in Children and Young Adults With B-ALL

2021 ◽  
pp. JCO.20.02262
Author(s):  
Nirali N. Shah ◽  
Daniel W. Lee ◽  
Bonnie Yates ◽  
Constance M. Yuan ◽  
Haneen Shalabi ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Cell Therapy ◽  
T Cell Therapy ◽  
Car T Cells ◽  
Car T Cell ◽  
Car T Cell Therapy ◽  
Car T

PURPOSE CD19 chimeric antigen receptor (CD19-CAR) T cells induce high response rates in children and young adults (CAYAs) with B-cell acute lymphoblastic leukemia (B-ALL), but relapse rates are high. The role for allogeneic hematopoietic stem-cell transplant (alloHSCT) following CD19-CAR T-cell therapy to improve long-term outcomes in CAYAs has not been examined. METHODS We conducted a phase I trial of autologous CD19.28ζ-CAR T cells in CAYAs with relapsed or refractory B-ALL. Response and long-term clinical outcomes were assessed in relation to disease and treatment variables. RESULTS Fifty CAYAs with B-ALL were treated (median age, 13.5 years; range, 4.3-30.4). Thirty-one (62.0%) patients achieved a complete remission (CR), 28 (90.3%) of whom were minimal residual disease−negative by flow cytometry. Utilization of fludarabine/cyclophosphamide–based lymphodepletion was associated with improved CR rates (29/42, 69%) compared with non–fludarabine/cyclophosphamide–based lymphodepletion (2/8, 25%; P = .041). With median follow-up of 4.8 years, median overall survival was 10.5 months (95% CI, 6.3 to 29.2 months). Twenty-one of 28 (75.0%) patients achieving a minimal residual disease−negative CR proceeded to alloHSCT. For those proceeding to alloHSCT, median overall survival was 70.2 months (95% CI, 10.4 months to not estimable). The cumulative incidence of relapse after alloHSCT was 9.5% (95% CI, 1.5 to 26.8) at 24 months; 5-year EFS following alloHSCT was 61.9% (95% CI, 38.1 to 78.8). CONCLUSION We provide the longest follow-up in CAYAs with B-ALL after CD19-CAR T-cell therapy reported to date and demonstrate that sequential therapy with CD19.28ζ-CAR T cells followed by alloHSCT can mediate durable disease control in a sizable fraction of CAYAs with relapsed or refractory B-ALL (ClinicalTrials.gov identifier: NCT01593696 ).

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