Ethical Challenges Behind Genome Sequencing and Precision Medicine

This is part 3 of an interview. Watch part 1 and part 2.

In this portion of the interview, Joyce Ohm, PhD, reflects on the ethical challenges that have accompanied the rapid pace of genomic science since the sequencing of the human genome. She notes that any fast-moving technology inevitably raises ethical questions, and genome sequencing has been no exception—generating both fear and confusion as science has outpaced society's ability to fully process its implications. Encouragingly, she points out that a robust field of scientific ethics has grown up alongside genomics research, helping the field navigate these challenges responsibly.

Still, Ohm acknowledges that fundamental questions remain unresolved, including who owns genomic data, how it should be used, and when its use crosses the line from helping patients to potentially harming them. She stresses that while genome sequencing has been an overwhelming net positive for medicine, researchers and clinicians must remain thoughtful and measured in how they apply it.

To illustrate this tension, she offers a concrete example from personalized medicine: sequencing a patient's tumor often reveals mutations that are clearly abnormal, but whose clinical significance isn't yet understood. This creates a genuine ethical dilemma—should a mutation of unknown significance be reported to a patient, given that doing so might cause unnecessary fear or confusion without offering any actionable information? Ohm frames this as emblematic of a broader challenge in the genomic era: the field now generates enormous amounts of data far faster than it can generate meaning or clinical interpretation for that data. As a result, keeping pace with the interpretive and ethical dimensions of genomic discovery is just as important as the scientific advances themselves.

Read the full interview with Dr Ohm.