What is the main purpose of toxicology studies in drug development?

The main purpose of toxicology studies in drug development is to assess the potential harmful effects of a substance on living organisms. These studies are crucial as they provide important data on the safety profile of a drug candidate. Before a new drug can be approved for clinical use, it is essential to understand its toxicity levels, possible side effects, and the impact of various dosages on different biological systems. By identifying any adverse effects early in the development process, researchers can make informed decisions about the drug's feasibility for further testing and ensure that it meets safety regulations prior to human trials. This is a foundational aspect of ensuring patient safety and meeting regulatory requirements for new drug approvals.