P4, N=54, Completed, Tuen Mun Hospital | Recruiting --> Completed

Giant cell tumor of bone (GCTB) is an intermediate bone neoplasm defined by recurrent H3F3A mutations and limited systemic treatment options beyond denosumab...Functionally, 3D culture generally reduced sensitivity to many agents while preserving compound-dependent vulnerabilities. These results establish culture dimensionality as a key determinant of therapeutic susceptibility in GCTB PDCs and support incorporating proteome-informed 3D models into translational pipelines to prioritize clinically relevant drug candidates and biomarkers.

P4, N=45, Completed, University of Alabama at Birmingham | Active, not recruiting --> Completed

This case is discussed within the context of a comprehensive narrative review highlighting the distinct biological behavior of calvarial GCTB compared to skull-base lesions, the critical importance of achieving gross total resection, and the emerging role of molecular diagnosis (H3F3A G34W mutation) and adjuvant therapies including denosumab. Calvarial GCTB offers superior surgical accessibility and prognosis compared to skull-base counterparts, with appropriately aggressive resection typically achieving cure without need for radiotherapy, thereby avoiding the well-documented risk of radiation-induced malignant transformation.

P2, N=50, Not yet recruiting, Tongji Hospital

Our results support the feasibility of neoadjuvant systemic therapy in resectable NSCLC and explore the novel combination of nivolumab with denosumab. CD8 T-cell infiltration correlates with pathological response, warranting ongoing translational research to better understand patient selection for such novel combinations.

In this real-world cohort, denosumab use was associated with longer rwPFS in germline BRCA1/2-mutated HR+/HER2- mBC with bone metastases.

These studies indicate that GCTB not only induces osteoclasts, but also possesses activity that inhibits bone formation.

This case suggests that the combination of denosumab with PARP inhibitors and chemoradiotherapy may provide a potential therapeutic strategy for TNBC patients with bone metastasis. Further studies are warranted to validate the efficacy and safety of this combined treatment approach.

CSF1R inhibitor can inhibit the tumor growth of recurrent GCTB. Targeting CSF1R and alleviating T cell exhaustion may provide therapeutic insights for the management of relapsed GCTB following DMAb discontinuation.

P2, N=30, Active, not recruiting, Columbia University | Trial completion date: Mar 2027 --> Mar 2028 | Trial primary completion date: Mar 2026 --> Mar 2027