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RESEARCH PAPER ANALYSIS

Clinical outcome and prognostic factors for immunotherapy-based treatments in patients with platinum-refractory germ cell tumor.

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PMID39236453
JournalInternational immunopharmacology
Publication Date2024-09-04
Ingested2026-08-02 12:02 AM
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ABSTRACT

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BACKGROUND: Germ cell tumors (GCTs) are a heterogeneous group of cancers associated with a favorable prognosis when treated with platinum-based chemotherapy. However, patients with platinum-refractory GCTs face limited options and poorer outcomes, necessitating innovative treatment approaches. This study aims to evaluate the clinical outcomes and identify prognostic factors associated with immunotherapy-based treatments in this challenging patient population. METHODS: This retrospective analysis included individuals with platinum-refractory GCTs treated with immunotherapy between 2017 and 2023. Clinical outcomes, safety, and biomarkers were analyzed. RESULTS: The study included 37 male patients with a median age of 26 years (range: 18-65). The overall response rate was 24.32 %, with a median progression-free survival (PFS) and overall survival (OS) of 4.67 months and 22.67 months, respectively. Patients with both serum levels of alpha-fetoprotein (AFP) and human chorionic gonadotropin (hCG) below 100 (AFP & hCG < 100) demonstrated significantly better PFS and OS. Multivariate analysis indicated that lower serum tumor marker levels (AFP & hCG < 100) and treatment initiation at earlier lines were significantly associated with improved PFS. Notably, genomic analysis revealed that one patient with an MDM4 mutation experienced hyperprogression after the initiation of immunotherapy. Immune-related adverse events occurred in two patients: one developed grade 1 hyperthyroidism, and the other experienced grade 2 immune-related pneumonitis. CONCLUSIONS: Immunotherapy offers a promising treatment option for selected patients with platinum-refractory GCTs, demonstrating moderate response rates and potential survival benefits in a real-world scenario. Identifying specific prognostic factors may help tailor treatment strategies and enhance outcomes in this challenging patient cohort.

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Clinical outcome and prognostic factors for immunotherapy-based treatments in patients with platinum-refractory germ cell tumor.

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