What is the difference between therapeutic and non-therapeutic research in genetics?

• A. Therapeutic aims to advance knowledge with minimal direct benefit; non-therapeutic aims to benefit participants directly
• B. Therapeutic aims to benefit participants with potential direct medical benefit; non-therapeutic aims to advance knowledge with minimal or uncertain direct benefit
• C. There is no difference between the two
• D. Therapeutic research always yields direct cures

Answer: (B)

Therapeutic research in genetics is designed with the hope of providing direct medical benefits to the participant, such as testing a gene-based treatment or intervention that could improve their health, even if the benefit is not guaranteed. Non-therapeutic research, by contrast, aims to advance general knowledge about genetics, disease mechanisms, or population patterns without a reasonable expectation of direct health benefits for the person who participates or provides a sample. Ethical review distinguishes studies by this direct-benefit expectation and the associated risk level, prioritizing participant safety and informed consent accordingly.

For example, a gene therapy clinical trial attempting to correct a genetic defect would be considered therapeutic because it seeks a direct health-related benefit for the participant. A study sequencing many genomes to understand genetic variation in a population, with no planned medical intervention for the individuals whose samples are used, is non-therapeutic.

The other options blur or invert this distinction: therapeutic research is not defined by advancing knowledge with minimal benefit, and there is a real difference between studies aimed at potential health benefits and those focused solely on knowledge. Therapeutic research does not always yield cures; it may show safety and potential benefit but not necessarily provide a cure.