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 |
|---|---|---|---|---|
| Coronary artery disease | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Neck mass | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Osteoarthritis | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Osteoporosis | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Pathological fracture | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Rotator cuff syndrome | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Bladder cancer stage 0, with cancer in situ | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Cancer pain | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Chronic lymphocytic leukaemia | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Invasive ductal breast carcinoma | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Myocardial infarction | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Lung adenocarcinoma | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Myeloproliferative neoplasm | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Neoplasm | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Prostate cancer | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Thyroid cancer | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Transitional cell carcinoma | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Uterine leiomyoma | SYSTEMATIC_ASSESSMENT | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 25.1 | View |
| Cerebral infarction | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Cerebral ischaemia | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Depressed level of consciousness | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Tachycardia paroxysmal | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Dizziness | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Headache | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Ischaemic stroke | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Lacunar infarction | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Paraesthesia | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Vocal cord paralysis | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Acute kidney injury | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 25.1 | View |
| Renal colic | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 25.1 | View |
| Renal failure | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 25.1 | View |
| Otolithiasis | SYSTEMATIC_ASSESSMENT | Ear and labyrinth disorders | MedDRA 25.1 | View |
| Ureterolithiasis | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 25.1 | View |
| Benign prostatic hyperplasia | SYSTEMATIC_ASSESSMENT | Reproductive system and breast disorders | MedDRA 25.1 | View |
| Intermenstrual bleeding | SYSTEMATIC_ASSESSMENT | Reproductive system and breast disorders | MedDRA 25.1 | View |
| Uterine polyp | SYSTEMATIC_ASSESSMENT | Reproductive system and breast disorders | MedDRA 25.1 | View |
| Asthma | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Chronic obstructive pulmonary disease | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Cough | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Dyspnoea | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Haemoptysis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Tympanic membrane perforation | SYSTEMATIC_ASSESSMENT | Ear and labyrinth disorders | MedDRA 25.1 | View |
| Interstitial lung disease | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Laryngeal inflammation | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Nasal polyps | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Pleurisy | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Pneumonitis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Pneumothorax | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Pulmonary embolism | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Pulmonary oedema | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Respiratory failure | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Vertigo | SYSTEMATIC_ASSESSMENT | Ear and labyrinth disorders | MedDRA 25.1 | View |
| Rash maculo-papular | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Aneurysm | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Deep vein thrombosis | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Embolism | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Cataract | SYSTEMATIC_ASSESSMENT | Eye disorders | MedDRA 25.1 | View |
| Hypertension | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Peripheral arterial occlusive disease | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Thrombophlebitis | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Venous thrombosis limb | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Glaucoma | SYSTEMATIC_ASSESSMENT | Eye disorders | MedDRA 25.1 | View |
| Abdominal hernia | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Diarrhoea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Gastric polyps | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Gastritis | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Inguinal hernia | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Intestinal polyp | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Large intestine perforation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Large intestine polyp | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Chest pain | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 25.1 | View |
| Death | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 25.1 | View |
| Malaise | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 25.1 | View |
| Bile duct stone | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Cholangitis acute | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Cholecystitis | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Cholecystitis acute | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Drug-induced liver injury | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Liver injury | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 25.1 | View |
| Contrast media allergy | SYSTEMATIC_ASSESSMENT | Immune system disorders | MedDRA 25.1 | View |
| Appendicitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Biliary tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Covid-19 pneumonia | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Diverticulitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Endocarditis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Gastroenteritis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Herpes simplex | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Influenza | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Peritonitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Acute coronary syndrome | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Pharyngitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Pneumonia | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Respiratory tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Sepsis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Subcutaneous abscess | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Upper respiratory tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Urinary tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Urinary tract infection bacterial | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Viral upper respiratory tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Ankle fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Acute myocardial infarction | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Cataract operation complication | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Comminuted fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Craniocerebral injury | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Femoral neck fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Femur fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Fibula fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Humerus fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Ligament injury | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Spinal compression fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Angina unstable | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| Subdural haemorrhage | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Tendon rupture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Thoracic vertebral fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 25.1 | View |
| Alanine aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Aspartate aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Ejection fraction decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Atrial fibrillation | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 25.1 | View |
| White blood cell count increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Decreased appetite | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 25.1 | View |
| Dehydration | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 25.1 | View |
| Hyperuricaemia | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 25.1 | View |
| Hyponatraemia | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 25.1 | View |
| Bone hypertrophy | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Term | Type | Organ System | Vocab | View |
|---|---|---|---|---|
| Muscle spasms | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Dizziness | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Headache | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 25.1 | View |
| Insomnia | SYSTEMATIC_ASSESSMENT | Psychiatric disorders | MedDRA 25.1 | View |
| Cough | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Epistaxis | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 25.1 | View |
| Alopecia | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Dermatitis acneiform | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Dry skin | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Nail disorder | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Pruritus | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Rash | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Rash maculo-papular | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Skin fissures | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 25.1 | View |
| Hypertension | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 25.1 | View |
| Dry eye | SYSTEMATIC_ASSESSMENT | Eye disorders | MedDRA 25.1 | View |
| Anaemia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 25.1 | View |
| Abdominal pain | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Constipation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Diarrhoea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Gastrooesophageal reflux disease | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Leukopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 25.1 | View |
| Mouth ulceration | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Stomatitis | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Toothache | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Vomiting | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 25.1 | View |
| Asthenia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 25.1 | View |
| Fatigue | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 25.1 | View |
| Neutropenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 25.1 | View |
| Bronchitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Thrombocytopenia | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 25.1 | View |
| Conjunctivitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Influenza | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Nasopharyngitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Paronychia | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Upper respiratory tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Urinary tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 25.1 | View |
| Alanine aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Aspartate aminotransferase increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Blood creatinine increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Electrocardiogram qt prolonged | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Neutrophil count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Platelet count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Weight decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| White blood cell count decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 25.1 | View |
| Decreased appetite | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 25.1 | View |
| Arthralgia | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |
| Back pain | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 25.1 | View |