Furthermore, MD simulations introducing an additional dovitinib molecule to the FGFR1-dovitinib complex indicated the potential for weak and transient interactions in the preferred interaction regions on the FGFR1 surface. These findings highlight the multifaceted nature of kinase-inhibitor interactions and provide valuable biophysical insights that may contribute to future drug discovery efforts targeting receptor tyrosine kinases.

P1, N=303, Recruiting, Exelixis | N=75 --> 303

CD26 + LSCs can be a useful marker in follow up of patients with CML. Despite promising findings, the limited sample size highlight the need for larger, prospective studies to validate these results and assess the predictive value of CD26 + LSCs for TKI discontinuation strategies.

This research aimed to create and validate a new rapid, sensitive, and specific LC-MS/MS technique for measuring tucatinib in dried blood spots (DBS) from mice, with afatinib serving as an internal standard (IS) following regulatory guidelines in the linearity range from 0.178 to 1009 ng/mL (r > 0.990). Tucatinib remained stable under various storage conditions. Comparison of DBS versus plasma samples concentrations showed a strong correlation, suggesting that DBS can serve as a valid alternative to plasma for pharmacokinetic evaluation.

P2, N=73, Recruiting, Northwestern University | N=29 --> 73 | Trial completion date: Jul 2029 --> Jul 2033

Through this mechanism, befotertinib acts as a functional inhibitor of ABCG2, restoring intracellular drug accumulation and enhancing cytotoxic responses. Collectively, these findings indicate that befotertinib may serve as a chemosensitizing agent to overcome MDR in NSCLC with high ABCG2 expression, supporting further evaluation in combination therapeutic strategies.

Larger multicenter studies, functional experimental models, and pharmacogenetic investigations are needed to elucidate predictive factors, clarify molecular mechanisms, and develop preventive or therapeutic strategies. Understanding these pigmentary changes may also provide valuable insights into drug activity and pave the way toward personalized medicine.

We show that PTK6 is targeted by PRMT1 and mutation of PTK6 R131/R136 or R132, or treatment with the type 1 PRMT inhibitor GSK3368715, leads to decreased arginine methylation, increased PTK6 protein stability and impaired PTK6 association with its substrates...These results indicate that arginine methylation is a key regulatory switch for PTK6 signaling and protein turnover and may be central for the execution of its diverse context-specific functions. Mutation of PTK6 arginine residues has been reported in some cancers, which may contribute to disease-specific PTK6 expression and signaling.

This case demonstrates the effectiveness of first-generation TKIs in treating metastatic EGFR-positive NSCLC, particularly in countries that cannot afford recent targeted therapies. In addition, it describes a rare adverse effect that was well tolerated and managed successfully.

P1, N=18, Recruiting, Washington University School of Medicine | Trial primary completion date: Nov 2028 --> May 2031 | Trial completion date: Oct 2033 --> Apr 2036

P2, N=30, Not yet recruiting, Stuthi Perimbeti

P3, N=5000, Not yet recruiting, Exelixis