Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 to 70

Neoantigen Vaccine SarVac With Tumor-Specific Lymphocytes Plus PD-1 Blocker for Advanced Sarcoma

Official title: 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.

Run by Sun Yat-sen University · NCT07648069 · Data updated 2026-11-12

This trial tests a personalized cancer vaccine called SarVac, given with a PD-1 blocker, and possibly tumor-specific lymphocytes, to see if it is safe and can help people with advanced soft tissue or bone sarcoma.

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Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 70 Years
SexAll
Enrollment16 (estimated)
SponsorSun Yat-sen University
Academic / other
Drugs / interventionschemotherapy, immunotherapy
Locations1 site (Guangzhou, Guangdong)
StatusRecruiting
StartedSeptember 3, 2024
Main results expectedDecember 31, 2026
Study endsJune 30, 2027
Registry record updatedJune 15, 2026
Trial IDNCT07648069 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18–70 with advanced or unresectable bone or soft tissue sarcoma who have progressed after first-line therapy and have measurable disease by RECIST 1.1.

Probably not a fit

Patients whose tumors do not mount an immune response to the personalized neoantigen vaccine or who do not respond to PD-1 blockade may see limited or no benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This early-phase study evaluates the safety and tolerability of the tumor neoantigen vaccine SarVac combined with a PD-1 antibody, with or without tumor-specific lymphocytes, in adults with advanced bone or soft tissue sarcoma who have failed first-line therapy. The study also explores preliminary efficacy and whether the vaccine’s effect depends on dose. Using next-generation sequencing, researchers identify patient-specific neoantigens to create the personalized vaccine and pair it with immunotherapy and potentially adoptive cells. The trial is conducted at Sun Yat-sen University Cancer Center in China, enrolling eligible adults up to age 70. Results from this phase I study will inform future trials on the feasibility and potential benefit of this combinatorial immunotherapy approach in sarcoma.

Why it matters

Potential benefit: If successful, participants may experience a manageable safety profile and potential signals of tumor shrinkage or slowed progression with the vaccine-immunotherapy combination.

How similar studies have gone: Immunotherapy combinations with tumor vaccines and checkpoint inhibitors have shown promise in sarcoma in early studies, but this specific neoantigen vaccine approach is experimental for this cancer type.

Who can join: the full rules

Show full inclusion / exclusion criteria
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.

Where it's running

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

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.