Clinical and preclinical studies of new drugs. Basic principles of developing clinical guidelines and recommendations

The development of new pharmacological agents is a meticulous and regulated process involving preclinical studies, followed by phased clinical trials, each with specific aims and methodologies. These trials provide critical data that inform the creation of clinical guidelines—evidence-based tools designed to optimize patient care and ensure consistency in medical practice. This article explores the multifaceted nature of preclinical and clinical drug studies, examining regulatory requirements, methodologies, and objectives at each phase. Furthermore, it delves into the principles and processes involved in formulating clinical guidelines, including systematic evidence evaluation, stakeholder engagement, and implementation. This integration of pharmacological innovation with clinical governance ensures both the safety of new interventions and the rational application in practice.