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Global Translational Medicine                                       Game-changing drug response prediction



















            Figure 1. The key drivers for drug response prediction market. The increasing prevalence of cancer and the pressing need for early diagnosis and
            intervention are fueling the demand for drug response prediction technologies. Accurate drug response prediction can help identify personalized gene
            signatures linked to effective drugs, enabling early intervention and better patient outcomes.















                                 Figure 2. Current challenges associated with drug response prediction methodologies

            expertise,  large  gaps  when  translating  findings  to  real-  discovery, and model-based data integration and artificial
            world patients, and the production of inaccurate results;   intelligence (AI). Therefore, it is not far-fetched to imagine
            (iii) clonal heterogeneity also poses a problem, as precision   that the advancement of machine learning is having a
            medicine in oncology relies on accurately characterizing   significant impact on precision medicine. Drug response
            the molecular profile of individual tumors at the start of   prediction based on the genomic or transcriptomic profile
            treatment. However, tumor profiles are dynamic, and   of a cancer patient is one of the hallmarks of precision
            targeting the dominant clone can lead to the emergence of   oncology. Despite improvements in in silico deep learning
            resistant subclones; (iv) limited biomarker identification is   approaches for drug response prediction, there is still an
            another hurdle, as precision medicine depends on reliable   urgent need to upgrade from “one-size-fits-all” digital
            cancer biomarkers to track disease progression. The   models to technologies that could truly offer high accuracy
            collection of high-quality genomic data for these biomarkers   as well as interpretable predictions for real-world real-life
            is challenging, resulting in a shortage of clinically validated   applications, especially in the non-responder population.
            biomarkers for predicting and monitoring outcomes in   Recent advancements in deep learning have played a
            patients receiving targeted drugs; (v) personalization adds   crucial role in aiding scientists to develop drug response
            further complexity, as regulatory compliance demands   prediction models. These machine training computation
            stringent safety and efficacy standards for targeted drugs,   techniques contribution to this field is significant, but they
            which require rigorous clinical trials involving diverse   all missing vital clinical validation, a key step to translate
            patient populations with specific cancer-associated
            genetic  mutations. These standards are  often difficult to   pre-clinical findings to clinical utility (Table 1).
            meet, posing a significant barrier to the development and   The field of machine learning, particularly deep neural
            implementation of precision medicines. Most significantly,   networks (DNNs), has been propelled by the surge in big
            all in silico drug response prediction algorithms apply one-  data, enhanced computing power, and cloud storage across
            size-fits-all approaches (i.e., population-wide approach).  various sectors, including both industrial and academic. 11-17
                                                               In medicine, DNNs positively impact three key areas:
            6. In silico drug response prediction models       enabling clinicians to interpret data rapidly and accurately,

            Translational precision medicine consists of key areas such   enhancing connectivity and reducing medical errors within
            as multi-omics profiling of patients, digital biomarker   health systems, and empowering patients to process their


            Volume 4 Issue 2 (2025)                         6                               doi: 10.36922/gtm.5091
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