InnoCare Pharma announced the Investigational New Drug (IND) clearance of its second-generation pan-TRK inhibitor ICP-723 by the US Food and Drug Administration (FDA) for starting phase I clinical trial in the United States. Preclinical studies have shown that ICP-723 has a good safety profile and high activity against a variety of solid tumors, and the potential to provide a broad-spectrum anti-cancer therapy for patients with solid tumors with NTRK gene fusion. The clinical trial will evaluate the safety, tolerability and pharmacokinetic properties of ICP-723 in patients with solid tumors, and evaluate the anti-tumor efficacy of ICP-723 on NTRK fusion-positive cancers. ICP-723 was developed to treat advanced or metastatic solid tumors harboring NTRK fusion genes, including breast cancer, colorectal cancer, lung cancer, thyroid cancer, etc., and for patients resistant to the first generation of TRK inhibitors. Currently in China, ICP-723 is in the Phase I dose escalation (1mg, 2mg, 3mg and 4mg), ICP-723 showed efficacy in two patients with qualified neurotrophic tyrosine receptor kinase (NTRK) fusion. The NTRK fusion positive patient in 3 mg cohort reached stable disease (>20% tumor reduction) and the patient in 4 mg cohort achieved partial response at the first tumor assessment at the end of cycle 1, or day 28.