How could knowledge of a person’s genome contribute to personalized medicine?

Knowledge of a person’s genome is central to personalized medicine (also known as precision medicine), a field that tailors disease prevention, diagnosis, and treatment to the individual rather than applying a one-size-fits-all approach.12

Disease Prevention and Diagnosis

Physicians use genomic data to assess an individual's risk for specific conditions. By identifying causative mutations—such as those linked to hereditary cancers—clinicians can implement early, life-saving screening protocols for at-risk patients. Furthermore, genetic testing allows for presymptomatic diagnosis and carrier testing, enabling individuals to make informed family-planning decisions and pursue early interventions that may prevent the onset of irreversible symptoms.13

Tailored Therapeutics

Genomic knowledge transforms treatment through:
* Pharmacogenomics: This field studies how genetic variations influence an individual's response to drugs. By genotyping patients, doctors can select medications and determine dosages that are most effective and least likely to cause severe side effects.14
* Targeted Therapy: In oncology, sequencing tumor genomes helps identify unique genetic alterations. Physicians can then select drugs designed to neutralize the specific molecular mechanisms driving that tumor’s growth.15

While promising, this field faces ethical challenges, including the need for equitable representation in genomic studies and the protection of patient privacy.13