For researchers submitting trial data to ClinicalTrials.gov, the Adverse Events module is one of four mandatory results sections. It requires reporting in three primary categories: All-Cause Mortality: A table tracking all deaths that occurred during the study, regardless of cause. Serious Adverse Events (SAEs): A tabular summary of events resulting in death, life-threatening conditions, hospitalization, or significant disability. Other Adverse Events: A table for non-serious events that exceed a specific frequency threshold, such as 5% within any study arm.
Adverse Events Module path is as follows:
Study -> Results Section -> Adverse Events Module -> Event Groups
Study -> Results Section -> Adverse Events Module -> Serious Events
Study -> Results Section -> Adverse Events Module -> Other Events
| Term | Type | Organ System | Vocab | View |
|---|---|---|---|---|
| Anaemia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Bone marrow failure | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Febrile neutropenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Leukopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Neutropenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Thrombocytopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Cardiac failure | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Left ventricular failure | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Myocardial infarction | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Nodal arrhythmia | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Pericardial effusion | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Supraventricular extrasystoles | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 21.0 | View |
| Adrenal insufficiency | SYSTEMATIC_ASSESSMENT | Endocrine disorders | MedDRA 21.0 | View |
| Hypophysitis | SYSTEMATIC_ASSESSMENT | Endocrine disorders | MedDRA 21.0 | View |
| Hypopituitarism | SYSTEMATIC_ASSESSMENT | Endocrine disorders | MedDRA 21.0 | View |
| Hypothalamo-pituitary disorder | SYSTEMATIC_ASSESSMENT | Endocrine disorders | MedDRA 21.0 | View |
| Secondary hypothyroidism | SYSTEMATIC_ASSESSMENT | Endocrine disorders | MedDRA 21.0 | View |
| Abdominal distension | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Abdominal pain | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Colitis | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Diarrhoea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Vomiting | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Asthenia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Death | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| General physical health deterioration | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Multiple organ dysfunction syndrome | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Oedema peripheral | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Pain | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Pyrexia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Sudden cardiac death | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Bacterial toxaemia | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 21.0 | View |
| Bronchitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 21.0 | View |
| Gastroenteritis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 21.0 | View |
| Lung infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 21.0 | View |
| Pneumonia | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 21.0 | View |
| Glomerular filtration rate decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Haemoglobin decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Influenza a virus test positive | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Neutrophil count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Decreased appetite | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 21.0 | View |
| Back pain | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 21.0 | View |
| Pain in extremity | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 21.0 | View |
| Pathological fracture | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 21.0 | View |
| Cancer pain | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 21.0 | View |
| Malignant neoplasm progression | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 21.0 | View |
| Cerebellar ischaemia | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Cerebral haemorrhage | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Paraplegia | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Somnolence | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Confusional state | SYSTEMATIC_ASSESSMENT | Psychiatric disorders | MedDRA 21.0 | View |
| Acute kidney injury | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 21.0 | View |
| Cough | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Dyspnoea | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Epistaxis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Haemoptysis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Pneumonitis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Pulmonary embolism | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Respiratory disorder | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Respiratory failure | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Rash | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 21.0 | View |
| Swelling face | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 21.0 | View |
| Deep vein thrombosis | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 21.0 | View |
| Hypotension | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 21.0 | View |
| Venous thrombosis limb | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 21.0 | View |
| Term | Type | Organ System | Vocab | View |
|---|---|---|---|---|
| Anaemia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Erythropenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Leukopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Lymphopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Neutropenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Thrombocytopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 21.0 | View |
| Constipation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Diarrhoea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Vomiting | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 21.0 | View |
| Asthenia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Chest pain | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Fatigue | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Pain | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Pyrexia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 21.0 | View |
| Alanine aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Aspartate aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Blood albumin decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Blood alkaline phosphatase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Gamma-glutamyltransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Haemoglobin decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Neutrophil count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Platelet count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Red blood cell count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Weight decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| White blood cell count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 21.0 | View |
| Decreased appetite | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 21.0 | View |
| Hyperglycaemia | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 21.0 | View |
| Hypokalaemia | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 21.0 | View |
| Hyponatraemia | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 21.0 | View |
| Arthralgia | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 21.0 | View |
| Pain in extremity | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 21.0 | View |
| Dizziness | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Hypoaesthesia | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Neuropathy peripheral | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 21.0 | View |
| Insomnia | SYSTEMATIC_ASSESSMENT | Psychiatric disorders | MedDRA 21.0 | View |
| Cough | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Dyspnoea | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Haemoptysis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 21.0 | View |
| Pruritus | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 21.0 | View |
| Rash | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 21.0 | View |