MRD-Negative Remission Induced in EP300-ZNF384 Positive B-ALL Patients by Tandem CD19/CD22 CAR T-Cell Therapy Bridging to Allogeneic Stem Cell Transplantation

EP300-ZNF384-positive B cell acute lymphoblastic leukemia (B-ALL) patients are reported to have a unique immunophenotype with high expression of CD19 and CD22, weak expression of CD20 and aberrant expression of CD13 and/or CD33, sensitivity to chemotherapy and a favorable outcome. To date, the cases...

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Veröffentlicht in:OncoTargets and therapy 2021-10, Vol.14, p.5197-5204
Hauptverfasser: Zhang, Xin-Yue, Dai, Hai-Ping, Zhang, Ling, Liu, Si-Ning, Dai, Yin, Wu, De-Pei, Tang, Xiao-Wen
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container_title OncoTargets and therapy
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creator Zhang, Xin-Yue
Dai, Hai-Ping
Zhang, Ling
Liu, Si-Ning
Dai, Yin
Wu, De-Pei
Tang, Xiao-Wen
description EP300-ZNF384-positive B cell acute lymphoblastic leukemia (B-ALL) patients are reported to have a unique immunophenotype with high expression of CD19 and CD22, weak expression of CD20 and aberrant expression of CD13 and/or CD33, sensitivity to chemotherapy and a favorable outcome. To date, the cases of only 53 patients have been reported, albeit few reports on salvage therapy when conventional chemotherapies failed. Here, we describe two relapsed and refractory adult B-ALL patients with EP300-ZNF384 who achieved second remission through tandem CD19/CD22 CAR T-cell therapy. Grade 3 and 2 cytokine release syndrome were observed in cases 1 and 2, respectively. No immune effector cell-associated neurotoxicity syndrome was detected. Both patients underwent consolidate haploidentical hematopoietic stem cell transplantation (HSCT), and each maintained measurable residual disease-negative remission for 14 and 13 months, respectively. Our study suggests that CD19/CD22 CAR T-cell therapy bridging to allogeneic HSCT may be a viable option for EP300-ZNF384-positive B-ALL. Keywords: chimeric antigen receptor T-cells, CD19/CD22, EP300-ZNF384, acute lymphoblastic leukemia, relapsed/refractory
doi_str_mv 10.2147/OTT.S324765
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To date, the cases of only 53 patients have been reported, albeit few reports on salvage therapy when conventional chemotherapies failed. Here, we describe two relapsed and refractory adult B-ALL patients with EP300-ZNF384 who achieved second remission through tandem CD19/CD22 CAR T-cell therapy. Grade 3 and 2 cytokine release syndrome were observed in cases 1 and 2, respectively. No immune effector cell-associated neurotoxicity syndrome was detected. Both patients underwent consolidate haploidentical hematopoietic stem cell transplantation (HSCT), and each maintained measurable residual disease-negative remission for 14 and 13 months, respectively. Our study suggests that CD19/CD22 CAR T-cell therapy bridging to allogeneic HSCT may be a viable option for EP300-ZNF384-positive B-ALL. 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Keywords: chimeric antigen receptor T-cells, CD19/CD22, EP300-ZNF384, acute lymphoblastic leukemia, relapsed/refractory</abstract><cop>Macclesfield</cop><pub>Dove Medical Press Limited</pub><pmid>34744437</pmid><doi>10.2147/OTT.S324765</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-1125-7744</orcidid><orcidid>https://orcid.org/0000-0002-2100-0152</orcidid><oa>free_for_read</oa></addata></record>
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source Taylor & Francis Open Access; DOVE Medical Press Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; PubMed Central Open Access
subjects Acute lymphoblastic leukemia
Bone marrow
Cancer
Case Series
CD13 antigen
CD19 antigen
CD20 antigen
CD22 antigen
Cell therapy
Chemotherapy
Cytokines
Fever
Flow cytometry
Genes
Graft versus host disease
Hematopoietic stem cells
Hypotension
Leukemia
Lymphatic leukemia
Lymphocytes T
Monoclonal antibodies
Mutation
Neurotoxicity
Patients
Remission
Remission (Medicine)
Stem cell transplantation
Stem cells
T cells
Transplantation
Vincristine
Young adults
title MRD-Negative Remission Induced in EP300-ZNF384 Positive B-ALL Patients by Tandem CD19/CD22 CAR T-Cell Therapy Bridging to Allogeneic Stem Cell Transplantation
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