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Allogeneic CD19 CAR-T Cells for the Treatment of Relapsed/Refractory B-cell Lymphoma (CAR-T)

22 de novembro de 2021 atualizado por: YuLi, Shenzhen University General Hospital

Preclinical and clinical studies of CD19 CAR-T in r/r B-NHL have been extensively carried out. At the beginning of 2020, MorphoSys submitted its company-targeted CD19 monoclonal antibody to the FDA for r/r DLBL treatment and obtained FDA priority approval. It further confirms the safety and effectiveness of CD19 as a therapeutic target in r/r B-NHL. However, these CAR-T cells are constructed from patients' autologous T cells, and the production and preparation time is long; on the other hand, most patients have received multiple chemotherapy before CAR-T treatment, and the quantity and quality of T cells often cannot meet the needs of clinical treatment. It is also an important factor leading to the failure of CAR-T cell therapy, which limits the large-scale clinical application of CAR-T.

T cells sourced from healthy people are not only sufficient in quantity and quality guaranteed, but also available at any time. In December 2020, lancet[2] reported a clinical study of 19 patients receiving allogeneic CAR-T cell therapy for B-ALL. 14 patients were evaluated as CR/CRi (67%) 28 days after treatment, with a median sustained remission Time 4.1 months. Allogeneic CAR-T cells are safe and effective for the treatment of B-cell malignant diseases, and their clinical application range is expected to further improve the remission rate and survival rate of patients with R/R B-cell non-Hodgkin's lymphoma.

Visão geral do estudo

Status

Recrutamento

Intervenção / Tratamento

Descrição detalhada

Chimeric antigen receptor (CAR) T cells enable T cells to recognize and kill tumor cells that express specific antigens through genetic engineering. CD19 is expressed on the membrane surface of pre-B cells and mature B cells, but not on the surface of T cells and normal granulocytes. It is an ideal therapeutic target for B cell-derived tumors. A large number of previous studies have confirmed that CD19 CAR-T cells are a safe and effective method for the treatment of ALL. In 2019, Locke FL[1] et al. reported a clinical study of CD19 CAR-T for r/r DLBL. 119 patients were enrolled. The objective response rate was 83%, the CR rate was 58%, and the median progression-free survival was 5.9. Months. Greatly improved the patient's prognosis.

Preclinical and clinical studies of CD19 CAR-T in r/r B-NHL have been extensively carried out. At the beginning of 2020, MorphoSys submitted its company-targeted CD19 monoclonal antibody to the FDA for r/r DLBL treatment and obtained FDA priority approval. It further confirms the safety and effectiveness of CD19 as a therapeutic target in r/r B-NHL. However, these CAR-T cells are constructed from patients' autologous T cells, and the production and preparation time is long; on the other hand, most patients have received multiple chemotherapy before CAR-T treatment, and the quantity and quality of T cells often cannot meet the needs of clinical treatment. It is also an important factor leading to the failure of CAR-T cell therapy, which limits the large-scale clinical application of CAR-T.

T cells sourced from healthy people are not only sufficient in quantity and quality guaranteed, but also available at any time. In December 2020, lancet[2] reported a clinical study of 19 patients receiving allogeneic CAR-T cell therapy for B-ALL. 14 patients were evaluated as CR/CRi (67%) 28 days after treatment, with a median sustained remission Time 4.1 months. Allogeneic CAR-T cells are safe and effective for the treatment of B-cell malignant diseases, and their clinical application range is expected to further improve the remission rate and survival rate of patients with R/R B-cell non-Hodgkin's lymphoma.

Tipo de estudo

Intervencional

Inscrição (Antecipado)

20

Estágio

  • Fase 2
  • Fase 1

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Locais de estudo

    • Guangdong
      • Shenzhen, Guangdong, China, 518000
        • Recrutamento
        • Li Yu
        • Contato:

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

14 anos a 70 anos (Filho, Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  1. 14-70 years old (including 14, 70 years old), no gender limit;
  2. According to the 2020 World Health Organization (WHO) diagnostic criteria, it is diagnosed as relapsed/refractory B-cell non-Hodgkin lymphoma (R/R B-NHL);
  3. The ECOG behavior status score is 0-2 points;
  4. Expected survival time ≥ 3 months;
  5. Tumor cells express CD19;
  6. Those who have failed autologous CAR-T cell preparation or autologous CAR-T cell therapy under the existing technical conditions;
  7. No serious heart, lung, liver, or kidney disease;
  8. Ability to understand and willing to sign the informed consent form for this trial.

Cell donors must meet the following criteria to participate in this study:

  1. 18-60 years old, no gender limit;
  2. A fully matched/half-matched donor with the patient's HLA match;

9) No contraindications to peripheral blood apheresis

Exclusion Criteria:

  1. Tumor cells do not express CD19;
  2. Active infection;
  3. Abnormal liver function (total bilirubin>1.5×ULN, ALT>2.5×ULN), abnormal renal function (serum creatinine>1.5×ULN);
  4. People with unstable angina or New York Heart Association class 3/4 congestive heart failure, multiple organ dysfunction;
  5. HIV/AIDS patients;
  6. Those who need long-term anticoagulation (warfarin or heparin), antiplatelet (aspirin, dose>300mg/d; clopidogrel, dose>75mg/d) treatment;
  7. Those who received radiotherapy within 4 weeks before the start of the study (blood sampling);
  8. Known or suspected drug abuse or alcohol dependence;
  9. People with mental illness or other conditions cannot obtain informed consent, and cannot cooperate with the requirements of completing the experimental treatment and inspection procedures;
  10. Participated in other clinical trials within 30 days;
  11. Pregnant or lactating women, male subjects (or their partners) or female subjects have a pregnancy plan during the study period to 6 months after the end of the test, and are unwilling to use a medically approved effective contraceptive measure during the test period (Such as intrauterine contraceptive devices or condoms);
  12. Those who are judged by the investigator to be unsuitable to participate in this trial

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: N / D
  • Modelo Intervencional: Atribuição de grupo único
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Treatment group
Allogeneic CD19 CR-T cell infusion
Allogeneic CD19 CR-T cell infusion

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Overall response rate
Prazo: From date of initial treatment to the end of follow up, up to 2 years
Percentage of patients in complete remission in total treated patients
From date of initial treatment to the end of follow up, up to 2 years

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
overall survival rate
Prazo: From admission to the end of follow up, up to 2 years
Time from initiation of trial treatment to death
From admission to the end of follow up, up to 2 years

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

5 de fevereiro de 2021

Conclusão Primária (Antecipado)

1 de fevereiro de 2024

Conclusão do estudo (Antecipado)

1 de fevereiro de 2024

Datas de inscrição no estudo

Enviado pela primeira vez

22 de novembro de 2021

Enviado pela primeira vez que atendeu aos critérios de CQ

22 de novembro de 2021

Primeira postagem (Real)

3 de dezembro de 2021

Atualizações de registro de estudo

Última Atualização Postada (Real)

3 de dezembro de 2021

Última atualização enviada que atendeu aos critérios de controle de qualidade

22 de novembro de 2021

Última verificação

1 de fevereiro de 2021

Mais Informações

Termos relacionados a este estudo

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

Ensaios clínicos em Linfoma Não Hodgkin, Células B

Ensaios clínicos em Allogeneic CD19 CR-T cell

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