Molecular-targeted Therapy for Precision Medicine in Gastrointestinal Cancer: Advancement in Cancer Targeting Strategies.

Gastrointestinal (GI) cancer represent significant health challenges, affecting the digestive system with often subtle symptoms that can delay diagnosis. GI cancers account for a higher global mortality rate than any other cancer, largely due to the limited availability of highly effective treatment options." Due to next-generation sequencing and new preclinical model tools, that we have learned more regarding its pathophysiology and molecular changes. Every molecular subtype has been characterised molecularly and new treatment targets have been found. Furthermore, tumour xenografts and organoids are grown from patients and are increasingly powerful resources for investigating GI patients' genetic evolution, identifying biomarkers, screening drugs, and conducting preclinical evaluations of personalised medicine approaches. Gastrointestinal (GI) cancer research is rapidly evolving, with recent advance-ments in precision medicine and immunotherapy offering new treatment options. Cutting-edge therapies, such as immune checkpoint inhibitors and targeted therapies like BRAF and HER2 inhibitors, are showing promise in treating specific types of GI cancers. These changes are making it possible for the age of precision medicine to use a mix of clinical, genome-based, and phenotype-based methods to diagnose and treat each GI patient individually. Clin-ical trials are exploring novel combinations of therapies to enhance survival rates and reduce side effects for patients with GI cancers, including colorectal, gastric, and pancreatic cancers. These developments are reshaping the future of gastrointestinal oncology. The purpose of this review is to study the current state of knowledge about predictive biomarkers, prospective novel targeted treatments, potential causes of conflicting trial outcomes, and the prospects for precision medicine in gastric cancer in the future.