Medical or public health measure taken whose purpose is to prevent, rather than treat or cure a disease. Primary prophylaxis is generally intended to prevent the development of a disease, while secondary prophylaxis is intended to prevent the disease, once …

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MedDRA (Medical Dictionary for Regulatory Activities) – is a medical terminology used to classify adverse event information associated with the use of biopharmaceuticals and other medical products (e.g., medical devices and vaccines). Source: EU Clinical Trials Register

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Key to MedDRA hierarchical levels (highest to lowest) SOC (System Organ Class) HLGT (High Level Group Term) HLT (High Level Term) PT (Preferred Term) LLT (Lowest Level Term). Source: EU Clinical Trials Register

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