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

12. června 2026 aktualizováno: 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.

Přehled studie

Detailní popis

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.

Typ studie

Intervenční

Zápis (Odhadovaný)

16

Fáze

  • Fáze 1

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní místa

    • Guangdong
      • Guangzhou, Guangdong, Čína, 510000
        • Nábor
        • Sun Yat-sen University Cancer Center
        • Kontakt:

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý
  • Starší dospělý

Přijímá zdravé dobrovolníky

Ne

Popis

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.

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

  • Primární účel: Léčba
  • Přidělení: Randomizované
  • Intervenční model: Paralelní přiřazení
  • Maskování: Žádné (otevřený štítek)

Zbraně a zásahy

Skupina účastníků / Arm
Intervence / Léčba
Experimentální: 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
Experimentální: 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

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Incidence and severity of adverse events
Časové okno: 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

Sekundární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
ORR
Časové okno: 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
Časové okno: 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

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

3. září 2024

Primární dokončení (Odhadovaný)

31. prosince 2026

Dokončení studie (Odhadovaný)

30. června 2027

Termíny zápisu do studia

První předloženo

10. června 2026

První předloženo, které splnilo kritéria kontroly kvality

12. června 2026

První zveřejněno (Aktuální)

15. června 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

15. června 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

12. června 2026

Naposledy ověřeno

1. dubna 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • SunYat-senU-T2023-002

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

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