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Target validation (TV) → Assay development → High-throughput screening (HTS) → Hit to lead (H2L) → Lead optimization (LO) → Preclinical development → Clinical development The hit to lead stage starts with confirmation and evaluation of the initial screening hits and is followed by synthesis of analogs (hit expansion).
Generally, the "target" is the naturally existing cellular or molecular structure involved in the pathology of interest where the drug-in-development is meant to act. [8] However, the distinction between a "new" and "established" target can be made without a full understanding of just what a "target" is.
An example target identification by chromatographic co-elution (TICC) workflow. Drug-spiked lysate is fractionated using ion exchange chromatography. Fractions are collected every minute, then analyzed for both drug and protein content using LC-MS/MS. Drug and protein elution profiles are constructed and correlated. Target identification is ...
Forward and reverse pharmacology approaches in drug discovery. In the field of drug discovery, reverse pharmacology [1] [2] [3] also known as target-based drug discovery (TDD), [4] a hypothesis is first made that modulation of the activity of a specific protein target thought to be disease modifying will have beneficial therapeutic effects.
Lisata’s investigational product, certepetide, to be the subject of a comprehensive AI-analysis to determine optimum disease targets and development strategies. GATC to leverage Lisata’s experience and operational excellence in translational medicine and drug development to advance their drug candidate pipeline products into clinical trials.
Northwestern University's High Throughput Analysis Laboratory supports target identification, validation, assay development, and compound screening. The non-profit Sanford Burnham Prebys Medical Discovery Institute also has a long-standing HTS facility in the Conrad Prebys Center for Chemical Genomics which was part of the MLPCN.
Target identification provides resources important for searching drug targets with information on genome annotation, proteome annotation, potential targets, and protein structure. Virtual screening compiles resources important for virtual screening as QSAR techniques, docking QSAR, cheminformatics, and siRNA/miRNA.
This approach is known as "reverse pharmacology" or "target based drug discovery" (TDD). [5] However recent statistical analysis reveals that a disproportionate number of first-in-class drugs with novel mechanisms of action come from phenotypic screening [6] which has led to a resurgence of interest in this method. [1] [7] [8]