Treatment of advanced endocrine tumors, including adrenal corticocarcnioma (ACC), medullary thyroid carcinoma (MTC), thymic neuroendocrine tumor and pancreatic neuroendocrine tumor is challenging. Previous genomic profiling studies showed they presented a number of somatic mutations. The tumors Individualized mRNA neoantigen vaccine provide a promising solution since a significant portion of these tumors showed high quality of tumor specific neoantigen. The primary objective is to observe and evaluate the safety and tolerability of individualized mRNA neoantigen vaccine (mRNA-0523-L001) for the treatment of advanced endocrine tumors, failure of standard treatment or no standard treatment currently available. The secondary objective is to observe the preliminary efficacy of mRNA-0523-L001 for the treatment of advanced endocrine tumors, failure of standard treatment or no standard treatment currently available, including:
1. Neoantigen-specific CD4+ and CD8+ T lymphocyte responses induced by mRNA-0523-L001; 2. Objective response rate (ORR) and disease control rate (DCR) of tumors; 3. Progression-free survival (PFS).
The subjects voluntarily sign the written informed consent form and can comply with the visits and related procedures specified in the protocol;
The subjects are 18 years old or older, regardless of gender;
Patients with advanced endocrine tumors confirmed by histology or cytology in the past 6 months (including medullary thyroid carcinoma, thymic carcinoma and adrenal cortical carcinoma, etc.), who have failed standard treatment or have no standard treatment available;
No HLA-related genes or chromosomal regions with copy number variations (CNVs) or loss of heterozygosity (LOH) were detected by gene sequencing;
Received chemotherapy, hormone therapy, traditional Chinese medicine with anti-tumor indications or other anti-tumor treatments within 4 weeks before the first administration (for mitomycin and nitrosourea, the last administration was within 6 weeks before the first administration of this study drug), or within 5 half-lives of immunotherapy or molecular targeted therapy;
Received other major surgery other than diagnosis or biopsy within 4 weeks before the first administration, or expected to receive major surgery during the study;
Patients who have received allogeneic hematopoietic stem cell transplantation or organ transplantation in the past, or plan to receive organ transplantation during this study;
Patients who have received other tumor vaccines or cell therapies in the past; Medical condition