Germ Cell Tumors

P=N/A, N=0, Not yet recruiting, Sun Yat-sen University Cancer Center; Sun Yat-sen University Cancer Center

P=N/A, N=44, Active, not recruiting, Memorial Sloan Kettering Cancer Center | Trial completion date: Oct 2024 --> Oct 2025 | Trial primary completion date: Oct 2024 --> Oct 2025

Additionally, pathway enrichment suggested that NUMB is involved in the Wnt pathway. This study highlights the predictive role of CTNNB1 across cancers, suggesting that CTNNB1 might serve as a potential biomarker for the diagnosis and prognosis evaluation of various malignant tumors.

P=N/A, N=1275, Active, not recruiting, Memorial Sloan Kettering Cancer Center | Trial completion date: Oct 2024 --> Oct 2025 | Trial primary completion date: Oct 2024 --> Oct 2025

We sought to evaluate the genomic and transcriptomic landscapes in primary and metastatic germ cell tumors (GCTs; N = 138) to uncover factors that drive cisplatin resistance...PRA-positive PreC GCTs had significantly lower average PSS scores compared to PRA-negative tumors. Lower PSS scores in chemo-naïve tumors were associated with PRAs, suggesting a potential mechanism for platinum resistance.

In this report, we demonstrate for the first time that targeting polycomb demethylases KDM6A and KDM6B with epidrug GSK-J4 can treat both cisplatin-sensitive and -resistant TGCTs. Further, several chromatin modifier genes, including BRD4 , lysine demethylases, chromodomain helicase DNA binding proteins, and lysine methyltransferases, were repressed with cisplatin only in KDM6A/KDM6B-targeted cells, implying that KDM6A/KDM6B inhibition sets the stage for extensive chromatin remodeling of TGCT cells upon cisplatin treatment. Our findings demonstrate that targeting polycomb demethylases is a new potent pharmacologic strategy for treating cisplatin resistant TGCTs that warrants clinical development.

The sacral approach for SCT excision was employed for the great majority of our patients, but due to the advanced age at diagnosis and locally advanced disease, morbidities occurred in about a third of the patients. Therefore, early detection prenatally and early referral to a pediatric surgical center should be achievable goals for physicians dealing with these patients.

While GSK-J4 had minimal effects alone on TGCT tumor growth in vivo, it dramatically sensitized cisplatin-sensitive and -resistant TGCTs to cisplatin...Further, several chromatin modifier genes, including BRD4, lysine demethylases, chromodomain helicase DNA binding proteins, and lysine methyltransferases, were repressed with cisplatin only in KDM6A/KDM6B-targeted cells, implying that KDM6A/KDM6B inhibition sets the stage for extensive chromatin remodeling of TGCT cells upon cisplatin treatment. Our findings demonstrate that targeting polycomb demethylases is a new potent pharmacologic strategy for treating cisplatin resistant TGCTs that warrants clinical development.

The International Mesothelioma Interest Group recommends using at least 2 mesothelial markers, such as calretinin, WT1, CK5/6 or D2-40, and 2 epithelial markers, such as claudin-4, CEA, MOC-31, as well as a broad-spectrum cytokeratin stain (AE1/AE3) as part of an initial immunohistochemical panel. Metastatic mesothelioma should be included in the differential diagnosis of malignant epithelioid dermal tumors with unusual staining patterns.

P2, N=23, Completed, National Cancer Institute (NCI) | Active, not recruiting --> Completed

The involvement of TILs in seminoma biology warrants further investigation, especially their role in the tumor micro-environment and pathogenesis. Chemokine and Ki-67 expression in TILs could serve as potential markers for assessing seminoma prognosis.

P=N/A, N=400, Recruiting, Eastern Cooperative Oncology Group | Trial completion date: Nov 2024 --> May 2027 | Trial primary completion date: Nov 2024 --> May 2027

This is the first report of a patient with heterochronous double primary tumor of BGGCT followed by DHGs.

Despite surgery and chemotherapy, two patients died of disease 17 months after ETT diagnosis, and three patients were alive with metastatic disease at a mean of 20 months (range, 15-28 months). Our results demonstrate that ETT may be an aggressive disease associated with distinct pathologic features and poor clinical outcome.

Thus, our data indicate a possible function of TAF7 in the regulation of SSCs and spermatogenesis following downregulation by Busulfan. These findings may account for the therapeutic effects of Busulfan and underlie its potential impact on cancer chemotherapy prognosis.

Research is also currently being conducted on circulating tumor cells (CTCs) and cell-free DNA (cfNA) in various areas of application. With regard to germ cell tumors of the testis, however, these analyses are still in their infancy, but it is hoped that this will provide a further sufficient opportunity to use serum tumor markers.

P2, N=4, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Sep 2024 --> Sep 2025

Management of SCYSTs is complex and requires a multidisciplinary approach, including surgeons, oncologists, radiologists, and pathologists. While relapse is rare, it poses a significant challenge for treatment, underscoring the need for clear and updated guidelines for managing relapsed cases.

P1, N=245, Recruiting, Incyte Corporation | N=165 --> 245

Finally, the proliferation, migration, and invasion of NT2/D1 cells simulated by E2 or ESR2 were also blocked by PP2 and U0126. This study provides novel insights into molecular mechanisms of ER in NT2/D1 cells by demonstrating that ER activates rapid responses molecules, including SRC and ERK1/2, which enhance the tumorigenic potential of testicular cancer cells.

In addition, compared with PD-L1-negative yolk sac tissue, dysgerminomas/seminomas with high PD-L1 expression are associated with more genetic alterations and a better prognosis. Our findings will contribute to the knowledge about the potential benefits of ovarian cancer immunotherapy in specific subsets of germ cell tumor patients and the risk factors for resistance mediated by tumor microenvironment cells.

P=N/A, N=500, Active, not recruiting, Beijing Sanbo Brain Hospital | Recruiting --> Active, not recruiting | Trial primary completion date: Dec 2023 --> Dec 2024

Consistent with this finding, the NTERA‑2R mouse model demonstrated a significant upregulation in the expression levels of VIM and SLUG. In conclusion, the present findings suggested that SLUG may serve a crucial role in connecting EMT with the development of cisplatin resistance, and targeting SLUG may be a putative therapeutic strategy to mitigate cisplatin resistance.

PD-L1 expression does not predict response, but microsatellite instability status may serve as a potential biomarker. MSI testing should be performed on a recurrent tumour sample as MSI status may evolve during treatment.

P2, N=9, Active, not recruiting, National Cancer Institute (NCI) | N=49 --> 9 | Trial completion date: Sep 2024 --> Oct 2025

Moreover, IATL induced ferroptosis by modulating expression levels of GPX4, xCT, NRF2, and HO-1. Our findings shed light on IATL's multifaceted anticancer mechanisms, emphasizing its potential as a therapeutic candidate for testicular cancer.

• Serum sodium levels above 149.5 mmol/L necessitated heightened vigilance for aAVP-D. • Early recognition and structured management of ADI lowered the risk of complications.

P3, N=348, Active, not recruiting, St. Olavs Hospital | Trial completion date: Dec 2035 --> May 2032 | Trial primary completion date: Dec 2035 --> May 2027 | Recruiting --> Active, not recruiting

To the best of our knowledge, this is the first successful case of KRAS-mutation patient with TGCT who achieved partially and sustained disease remission by combining immune checkpoint inhibitors with chemotherapy. This case provides an excellent example for personalized treatment of metastatic TGCTs.

The caspase 8 inhibitor blocked pressure-induced apoptosis and caspase 3 activation, while the cytochrome C inhibitor did not show the same effect. Our findings suggested that external pressure induces apoptosis of Sertoli cells via the Fas/FasL signaling pathway, potentially contributing to male infertility associated with cryptorchidism.

This molecular characterization informed a tailored therapeutic strategy incorporating carboplatin and etoposide, alongside localized irradiation. The present case accentuates the significance of thorough diagnostic evaluations and customized treatment plans for rare GCT presentations. Further empirical and clinical investigations are warranted to enhance our understanding of and refine therapeutic protocols for such exceptional cases.

P=N/A, N=956, Active, not recruiting, SWOG Cancer Research Network | Recruiting --> Active, not recruiting

If meningiomas, craniopharyngiomas, and germ cell tumors are excluded, the remaining lesions include a broad spectrum of uncommon, benign, and aggressive, often diagnostically challenging lesions. This review aims to summarize the essential clinicopathological features of tumors of the posterior pituitary gland, infundibulum spectrum expressing thyroid transcription factor 1, and primary sellar atypical rhabdoid teratoid tumor, and provide the criteria for their diagnosis and management.

P=N/A, N=10, Active, not recruiting, University of Texas Southwestern Medical Center | Trial completion date: Jul 2024 --> Jul 2026 | Trial primary completion date: Jul 2024 --> Jul 2025

Chemotherapy with a Bleomycin, Etoposide, and Cisplatin (BEP) regimen was carried out...Treatment with targeted therapy with Sunitinib was started because the risk was favourable according to the Heng criteria... According to the authors, the occurrence of synchronous primary tumours is linked to one's genetic predisposition. DNA sequencing of tumour tissue could provide more information on the corresponding aetiopathogenesis.

This report presents a detailed description of the findings, differential diagnosis, clinical course, chosen treatment, and prognosis. Also, a comprehensive literature review of ovarian Sertoli-Leydig cell tumors, focusing on their clinical presentation, laboratory findings, macroscopic and histopathological features, genetics, clinical management, prognostic factors and follow-up, is provided.

HSP90b is highly expressed in the majority of the types of testicular tumors, both in tumor and normal parenchyma specimens, while HSP90a staining is negative in resected specimens. Further well-designed studies are needed to elucidate the role of HSP90 as a diagnostic marker and therapeutic target in testicular tumors.

The elevation in CA-19-9 likely relates directly to the teratoma itself. A conservative, fertility-sparing surgical approach proved effective, emphasizing the importance of careful preoperative evaluation and management in similar cases.

Postoperatively, a five-cycle chemotherapy regimen comprising bleomycin, etoposide, and cisplatin was administered. During postoperative follow-up, the patient's general condition was noted to be good, with the newborn and pregnant women ultimately achieving good outcomes. We reviewed the relevant literature to increase clinical doctors' understanding of ovarian malignancy during pregnancy, guide treatment selection, and facilitate early intervention for associated diseases.

P2, N=240, Recruiting, Children's Oncology Group | Not yet recruiting --> Recruiting | Initiation date: Sep 2024 --> Jun 2025

PITS can be clinically & pathologically inconspicuous, difficult to stage and liable to be misdiagnosed especially if presented with metastasis. Despite the inconspicuousness, PITS may represent an aggressive growth pattern of seminoma with the propensity for rete testis invasion.

Among TCS, only patients exposed to cytotoxic agents developed an immunosenescent phenotype. This finding supports the attribution of this alteration to the cytotoxic treatment.