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Interindividual Treatment Response

Meaning

Interindividual treatment response refers to the wide, clinically observed variation in the efficacy and side-effect profile experienced by different patients when receiving the identical therapeutic intervention, such as a specific hormonal support regimen or medication. This variance is a central challenge in clinical practice, stemming from a complex interplay of genetic, epigenetic, metabolic, and environmental factors unique to each person. A comprehensive understanding of this differential response is the driving force behind personalized medicine, aiming to move away from a population-average model of care.