NTRK2 (Neurotrophic tyrosine kinase, receptor, type 2)

In animal models, AspMet significantly reduced the growth of subcutaneous tumors in both gastric and colorectal cancers，and it has an extremely high bioavailability. Therefore, the dual inhibition strategy targeting c-Met and COX-2 offers a promising novel approach for the treatment of cancers, particularly inflammatory cancers.

Owing to the presence of neural tissue, NTRKs are highly positive in IHC, making these genes unsuitable as biomarkers for assessing NTRK inhibitor sensitivity and resistance, which are tissue-agnostic drugs. The observed low fusion rate is consistent with the literature, and the significance of the numerous point mutations identified as agnostic markers warrants further investigation. NTRK expression, fusion, and point mutations were not associated with clinical parameters or survival.

P1/2, N=28, Active, not recruiting, Bicycletx Limited | Recruiting --> Active, not recruiting

P2/3, N=230, Not yet recruiting, Swiss Cancer Institute | Initiation date: Dec 2025 --> Jul 2026

These studies demonstrate that NTRK wild-type receptors are important drivers of brain metastatic colonization and progression in different subtypes of lung cancer, independent of their driver alterations. Thus, they provide rationale to expand the use of FDA-approved NTRK inhibitors with brain penetrance for the prevention of CNS metastases.

TCM-derived compounds exert multifaceted neuroprotective and psychotropic effects, while successful clinical translation requires strengthened pharmaceutical characterization, standardized dosing strategies and advanced delivery systems such as nanoformulations, phytosomes and standardized granules to enhance bioavailability, reliability and regulatory acceptance.

Additionally, MYCN-induced miR-221 was found to suppress CREB expression. Together, these findings demonstrate MYCN-dependent effects of TrkC signalling and highlight the therapeutic potential of targeting the PKA pathway to induce differentiation in high-risk MYCN-amplified neuroblastoma.

Notably, overexpression of BDNF can counteract Deguelin's inhibitory effects on ESCC growth and PNI progression. The BDNF/TrkB axis promotes the progression of ESCC PNI, and Deguelin inhibits ESCC PNI by targeting this axis, enhancing the understanding of PNI's molecular mechanisms and offering new therapeutic options.

These multifaceted effects collectively alleviated mHtt aggregation, as confirmed by EM48 immunostaining and Western blot analysis. Together, our findings demonstrate that iPSC-exo mitigate HD pathology by improving mitochondrial function, neuronal differentiation, and anti-apoptotic signaling, thereby reducing mHtt accumulation.

P=N/A, N=40, Enrolling by invitation, Chang Gung Memorial Hospital | Not yet recruiting --> Enrolling by invitation

Its efficacy was intermediate between methotrexate and the selective NTRK2 inhibitor ana-12. Mechanistically, Lucitanib targeted the NTRK2-AKT-MMP9 axis while preserving immune effector functions. These findings establish NTRK2 as a viable therapeutic target in gliomas and highlight Lucitanib as a novel multi-mechanistic inhibitor with balanced efficacy and favorable pharmacokinetic properties, supporting its further development for clinical translation in NTRK2-overexpressing gliomas.

Tumors harboring these fusions respond dramatically to TRK inhibitors (e.g., larotrectinib, entrectinib, and repotrectinib), which selectively target the constitutively active fusion protein. Conclusively, this first report of three novel NTRK2 fusion transcript variants co-occurrence in an MTC patient expands the known spectrum of translocation partners in NTRK2 rearrangements. Prospective validation of their impact on TRK-targeted therapy efficacy and disease prognosis requires long-term follow-up.