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Tumor Neoantigen Vaccine SarVac Combined With Tumor Specific Lymphocyte Reinfusion in the Treatment of Advanced Sarcoma

12 de junho de 2026 atualizado por: Xing Zhang, Sun Yat-sen University

A Prospective, Single-center, Double-arm, Phase I Clinical Trial of Tumor Neoantigen Vaccine SarVac Combined With Tumor-specific Lymphocyte Reinfusion in the Treatment of Patients With Advanced or Unresectable Sarcoma-based Solid Tumors Who Failed Standard Treatment.

The primary objective of this trial is to evaluate the safety and tolerability of the tumor neoantigen vaccine (SarcVac) in combination with a PD-1 antibody, with or without tumor-specific lymphocytes, in patients with advanced bone and soft tissue sarcoma who have failed first-line treatment. The secondary objectives are to assess the preliminary efficacy of SarcVac combined with a PD-1 antibody, with or without tumor-specific lymphocytes, in these patients and to evaluate whether the vaccine's efficacy demonstrates dose dependency.

Visão geral do estudo

Descrição detalhada

Soft tissue sarcoma (STS) represents a heterogeneous group of malignant tumors. The prognosis is poor with an overall survival of 12-19 months for patients with metastasis. A critical unmet medical need is to develop novel and effective therapeutic approaches to improve the survival of patients with STS, for whom limited alternative chemotherapeutic or targeting regimens are available.

In recent years, tumor immunotherapy has emerged as a promising alternative to traditional treatments like surgery, chemotherapy, and radiotherapy. This approach includes four primary categories: immune checkpoint blockade, immunomodulators, adoptive cell transfer, and tumor vaccines. Immune checkpoint inhibitors, such as PD-1/PD-L1 and CTLA-4 antibodies, have shown efficacy in treating certain cancers. Tumor vaccines, which utilize tumor antigens to stimulate specific immune responses against cancer cells, offer notable advantages. These vaccines are characterized by low toxicity, high specificity, and the ability to induce immune memory, thereby reducing the risk of recurrence. Tumor-specific lymphocytes further enhance the immune system's capacity to target and kill tumor cells directly.

This study utilizes next-generation sequencing technology and bioinformatics analysis to accurately identify personalized tumor neoantigens. By screening for neoantigens with high MHC affinity and strong immunogenicity, we develop a personalized neoantigen vaccine, SarcVac. Subsequently, these neoantigens are used in vitro to activate and expand the patient's peripheral blood lymphocytes, yielding tumor-specific lymphocytes. This clinical trial will assess the safety and tolerability of the neoantigen vaccine (SarcVac) in combination with a PD-1 antibody, with or without tumor-specific lymphocytes, in patients with advanced solid tumors. Additionally, a preliminary assessment of its efficacy will be conducted.

Tipo de estudo

Intervencional

Inscrição (Estimado)

16

Estágio

  • 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
      • Guangzhou, Guangdong, China, 510000
        • Recrutamento
        • Sun Yat-sen University Cancer Center
        • 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

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

  1. Before any procedures related to the research program, including screening and evaluation stage, signed informed consent.
  2. Age≥18 years old, and≤70 years old ;
  3. Pathologically diagnosed as solid tumors, including bone or soft tissue sarcoma, and staging for advanced or unresectable patients ;
  4. Patients with first-line treatment failure ;
  5. No previous tumor vaccine treatment ; no previous treatment with PD-1 antibody ;
  6. According to the RECIST1.1 standard, there are measurable lesions and superficial lesions ;
  7. The following three screening indicators should be met in the test screening period:

(1)The available tumor tissue samples ( paraffin sections and fresh surgical specimens ) were used for subsequent whole exome and transcriptome sequencing analysis and primary cell culture to obtain tumor neoantigen-related mutation sequence information and gene expression.

( 2 ) Available peripheral blood samples; ( 3 ) Tumor new antigen prediction analysis and in vitro laboratory testing; 8. ECOG score 0-1 ( see Appendix ) and expected survival time greater than 6 months ; 9. Patients were not allowed to use anti-tumor drugs and radiotherapy within 4 weeks before vaccination; 10. Patients with brain metastasis who were stable for at least one month after treatment can be included; 11. echocardiography showed left ventricular ejection fraction ≥ 50 %; 12. The results of laboratory tests should meet at least the following indicators :

  1. White blood cell count ≥ 3.0 × 109 / L;
  2. absolute neutrophil count ( ANC ) ≥ 1.5 × 109 / L ( without GCSF support ) ;
  3. absolute lymphocyte count ( ALC ) ≥ 1.0 × 109 / L;
  4. platelet ( PLT ) ≥ 75 × 109 / L;
  5. hemoglobin ≥ 90g / dL ( no blood transfusion in the past 7 days ) ;
  6. Prothrombin time or INR ≤ 1.5x normal upper limit time, unless receiving anticoagulant therapy;
  7. partial thromboplastin time ( APTT ) ≤ 1.5x normal upper limit time, unless receiving anticoagulant therapy;
  8. serum creatinine ≤ 1.5 × ULN ( upper limit of normal ) ; 24-hour creatinine clearance rate ≥ 60 mL / min;
  9. Aspartate Aminotransferase (AST/SGOT) ≤ 2 × ULN;
  10. Alanine Aminotransferase (ALT/SGPT) ≤ 2 × ULN;
  11. total bilirubin ( TBIL ) ≤ 1 × ULN 13. Females with fertility were negative in pregnancy test before treatment ; consent must be given to the use of contraception or the prohibition of same-sex or opposite-sex sexual activity during treatment; 14. During the whole experiment, we can regularly go to the research institutions to carry out relevant testing, evaluation and management.

Exclusion Criteria:

  • 1. Before any procedures related to the research program, including screening and evaluation stage, signed informed consent.

    2. Age≥18 years old, and≤70 years old ; 3. Pathologically diagnosed as solid tumors, including bone or soft tissue sarcoma, and staging for advanced or unresectable patients ; 4. Patients with first-line treatment failure ; 5. No previous tumor vaccine treatment ; no previous treatment with PD-1 antibody ; 6. According to the RECIST1.1 standard, there are measurable lesions and superficial lesions ; 7. The following three screening indicators should be met in the test screening period:

    (1)The available tumor tissue samples ( paraffin sections and fresh surgical specimens ) were used for subsequent whole exome and transcriptome sequencing analysis and primary cell culture to obtain tumor neoantigen-related mutation sequence information and gene expression.

( 2 ) Available peripheral blood samples; ( 3 ) Tumor new antigen prediction analysis and in vitro laboratory testing; 8. ECOG score 0-1 ( see Appendix ) and expected survival time greater than 6 months ; 9. Patients were not allowed to use anti-tumor drugs and radiotherapy within 4 weeks before vaccination; 10. Patients with brain metastasis who were stable for at least one month after treatment can be included; 11. echocardiography showed left ventricular ejection fraction ≥ 50 %; 12. The results of laboratory tests should meet at least the following indicators :

  1. White blood cell count ≥ 3.0 × 109 / L;
  2. absolute neutrophil count ( ANC ) ≥ 1.5 × 109 / L ( without GCSF support ) ;
  3. absolute lymphocyte count ( ALC ) ≥ 1.0 × 109 / L;
  4. platelet ( PLT ) ≥ 75 × 109 / L;
  5. hemoglobin ≥ 90g / dL ( no blood transfusion in the past 7 days ) ;
  6. Prothrombin time or INR ≤ 1.5x normal upper limit time, unless receiving anticoagulant therapy;
  7. partial thromboplastin time ( APTT ) ≤ 1.5x normal upper limit time, unless receiving anticoagulant therapy;
  8. serum creatinine ≤ 1.5 × ULN ( upper limit of normal ) ; 24-hour creatinine clearance rate ≥ 60 mL / min;
  9. Aspartate Aminotransferase (AST/SGOT) ≤ 2 × ULN;
  10. Alanine Aminotransferase (ALT/SGPT) ≤ 2 × ULN;
  11. total bilirubin ( TBIL ) ≤ 1 × ULN 13. Females with fertility were negative in pregnancy test before treatment ; consent must be given to the use of contraception or the prohibition of same-sex or opposite-sex sexual activity during treatment; 14. During the whole experiment, we can regularly go to the research institutions to carry out relevant testing, evaluation and management.

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: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Drug delivery mode 1
  1. Neoantigen Vaccine Injection: Each subject receives injections of vaccine components determined from prior in vitro experiments throughout the treatment course. The SarcVac peptide vaccine, mixed with an adjuvant (PolyI:C) in 0.5 ml of saline, is administered subcutaneously in the inguinal region on days 1, 3, 7, 15, 30, 65, and 86 from treatment initiation.
  2. Tumor-Specific Lymphocyte Infusion: Throughout the treatment course, each subject receives tumor-specific lymphocyte infusions.
  3. Antibody Therapy: Subjects receive anti-PD-1 antibody (Sintilimab) via intravenous infusion throughout the treatment period.
Neoantigen vaccine+ specific lymphocytes + anti-PD1 antibody
Experimental: Drug delivery mode 2
  1. Neoantigen Vaccine Injection: Each subject receives injections of vaccine components determined from prior in vitro experiments throughout the treatment course. The SarcVac peptide vaccine, mixed with an adjuvant (PolyI:C) in 0.5 ml of saline, is administered subcutaneously in the inguinal region on days 1, 3, 7, 15, 30, 65, and 86 from treatment initiation.
  2. Antibody Therapy: Subjects receive anti-PD-1 antibody (Sintilimab) via intravenous infusion throughout the treatment period.
Neoantigen vaccine + anti-PD1 antibody

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Incidence and severity of adverse events
Prazo: 120 days
The primary objective of this trial is to evaluate the safety and tolerability of the tumor neoantigen vaccine (SarcVac) in combination with a PD-1 antibody, with or without tumor-specific lymphocytes.
120 days

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
ORR
Prazo: 270 days
The secondary objectives are to assess the preliminary efficacy of SarcVac combined with a PD-1 antibody, with or without tumor-specific lymphocytes, and to evaluate whether the vaccine's efficacy demonstrates dose dependency.
270 days
DCR
Prazo: 270 days
The secondary objectives are to assess the preliminary efficacy of SarcVac combined with a PD-1 antibody, with or without tumor-specific lymphocytes, and to evaluate whether the vaccine's efficacy demonstrates dose dependency.
270 days

Colaboradores e Investigadores

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

Patrocinador

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)

3 de setembro de 2024

Conclusão Primária (Estimado)

31 de dezembro de 2026

Conclusão do estudo (Estimado)

30 de junho de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

10 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

12 de junho de 2026

Primeira postagem (Real)

15 de junho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

15 de junho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

12 de junho de 2026

Última verificação

1 de abril de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • SunYat-senU-T2023-002

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

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Ensaios clínicos em Neoantigen vaccine + specific lymphocytes + anti-PD1 antibody

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