gamitrinib

P1, N=42, Suspended, Fox Chase Cancer Center | Trial completion date: Dec 2029 --> Dec 2026 | Trial primary completion date: Dec 2028 --> Jun 2026

Among these compounds, gamitrinib, a specific mtHsp90 inhibitor, has demonstrated its safety and efficacy in several preclinical investigations and is currently undergoing evaluation in clinical trials. This review aims to provide a comprehensive overview of the present knowledge pertaining to mtHsp90, encompassing its structure and function. Moreover, our main emphasis is on the development of mtHsp90 inhibitors for various cancer therapies, to present a thorough overview of the recent pre-clinical and clinical advancements in this field.

These findings provide new insights into TRAP1-driven metabolic reprogramming in response to oxidative stress.

To further elucidate the mechanistic role of TRAP1 in regulating tumor cell survival, we used gamitrinib-triphenylphosphonium (G-TPP) to inhibit TRAP1 signaling pathways in colon cancer...Furthermore, treatment with both a NRF2 inhibitor and a TRAP1 inhibitor led to excessive ROS production and exacerbated G-TPP-induced cell death in G-TPP-resistant cells. Taken together, dual targeting of TRAP1 and NRF2 may potentially overcome colon cancer resistance by raising cellular ROS levels above the cytotoxic threshold.

Consistently, the combination treatment of CDK7i inhibitors with blockers of FAO (etomoxir) or cellular respiration (gamitrinib) exerted substantial synergistic growth inhibition in patient derived xenograft as well as neurosphere GBM cultures, which was mainly driven by a collapse of oxidative energy metabolism. Finally, the combined administration of YKL-5-124 and etomoxir extended overall in an orthotopic patient-derived xenograft model of GBM. In summary, these data support that simultaneous targeting of CDK7 and FAO might be a potential novel therapy against GBM.

Inhibition of TRAP1 by a small molecule inhibitor, Gamitrinib-triphenylphosphonium (GTPP), in colon cancer cells led to ROS production, ER stress, reduction of cell viability and induction of cell death...These new findings for the first-time link TRAP1 and NRF2 in a common pathway regulating ROS production in colon cancer. Taken together, dual targeting of TRAP1 and NRF2 may potentially overcome the tumor cell resistance through disruption of mitochondrial redox homeostasis.