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

12 juin 2026 mis à jour par: 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.

Aperçu de l'étude

Description détaillée

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.

Type d'étude

Interventionnel

Inscription (Estimé)

16

Phase

  • La phase 1

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

    • Guangdong
      • Guangzhou, Guangdong, Chine, 510000
        • Recrutement
        • Sun Yat-sen University Cancer Center
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

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.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: 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
Expérimental: 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

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Incidence and severity of adverse events
Délai: 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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
ORR
Délai: 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
Délai: 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

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

3 septembre 2024

Achèvement primaire (Estimé)

31 décembre 2026

Achèvement de l'étude (Estimé)

30 juin 2027

Dates d'inscription aux études

Première soumission

10 juin 2026

Première soumission répondant aux critères de contrôle qualité

12 juin 2026

Première publication (Réel)

15 juin 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

15 juin 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

12 juin 2026

Dernière vérification

1 avril 2026

Plus d'information

Termes liés à cette étude

Autres numéros d'identification d'étude

  • SunYat-senU-T2023-002

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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