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 12.1 | View |
| Disseminated intravascular coagulation | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 12.1 | View |
| Thrombocytosis | SYSTEMATIC_ASSESSMENT | Blood and lymphatic system disorders | MedDRA 12.1 | View |
| Atrial fibrillation | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 12.1 | View |
| Cardiac arrest | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 12.1 | View |
| Cardiac failure congestive | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 12.1 | View |
| Myocardial infarction | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 12.1 | View |
| Supraventricular tachycardia | SYSTEMATIC_ASSESSMENT | Cardiac disorders | MedDRA 12.1 | View |
| Retinal artery occlusion | SYSTEMATIC_ASSESSMENT | Eye disorders | MedDRA 12.1 | View |
| Abdominal distension | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Abdominal hernia | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Abdominal pain | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Anal haemorrhage | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Constipation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Gastric ulcer | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Ileus | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Ileus paralytic | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Intestinal obstruction | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Intestinal perforation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Melaena | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Oesophageal perforation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Oesophagitis | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Rectal haemorrhage | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Vomiting | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Asthenia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Hyperthermia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Impaired healing | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Inflammation | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Multi-organ failure | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Oedema peripheral | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Pyrexia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Secretion discharge | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Cholelithiasis | SYSTEMATIC_ASSESSMENT | Hepatobiliary disorders | MedDRA 12.1 | View |
| Abscess neck | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Arthritis infective | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Diverticulitis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Haematoma infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Hepatitis A | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Injection site abscess | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Oesophageal candidiasis | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Post procedural infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Postoperative wound infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Urinary tract infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Wound infection | SYSTEMATIC_ASSESSMENT | Infections and infestations | MedDRA 12.1 | View |
| Abdominal injury | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Avulsion fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Brain contusion | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Device dislocation | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Dislocation of joint prosthesis | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Fat embolism | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Femur fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Genital injury | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Hip fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Joint dislocation | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Oesophageal injury | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Operative haemorrhage | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Periprosthetic fracture | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Post procedural discharge | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Post procedural haematoma | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Post procedural haemorrhage | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Procedural hypotension | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Seroma | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Traumatic haematoma | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Wound dehiscence | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Wound haemorrhage | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| Wound secretion | SYSTEMATIC_ASSESSMENT | Injury, poisoning and procedural complications | MedDRA 12.1 | View |
| C-reactive protein increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 12.1 | View |
| Haemoglobin decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 12.1 | View |
| Hepatic enzyme increased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 12.1 | View |
| Dehydration | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 12.1 | View |
| Metabolic acidosis | SYSTEMATIC_ASSESSMENT | Metabolism and nutrition disorders | MedDRA 12.1 | View |
| Arthralgia | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 12.1 | View |
| Back pain | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 12.1 | View |
| Haemarthrosis | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 12.1 | View |
| Joint effusion | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 12.1 | View |
| Mobility decreased | SYSTEMATIC_ASSESSMENT | Musculoskeletal and connective tissue disorders | MedDRA 12.1 | View |
| Carotid artery stenosis | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Central nervous system lesion | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Epilepsy | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Monoparesis | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Somnolence | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Syncope | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Transient ischaemic attack | SYSTEMATIC_ASSESSMENT | Nervous system disorders | MedDRA 12.1 | View |
| Anuria | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 12.1 | View |
| Renal failure acute | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 12.1 | View |
| Renal impairment | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 12.1 | View |
| Urethral stenosis | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 12.1 | View |
| Urinary retention | SYSTEMATIC_ASSESSMENT | Renal and urinary disorders | MedDRA 12.1 | View |
| Benign prostatic hyperplasia | SYSTEMATIC_ASSESSMENT | Reproductive system and breast disorders | MedDRA 12.1 | View |
| Pleural effusion | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 12.1 | View |
| Pulmonary embolism | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 12.1 | View |
| Pulmonary oedema | SYSTEMATIC_ASSESSMENT | Respiratory, thoracic and mediastinal disorders | MedDRA 12.1 | View |
| Erythema | SYSTEMATIC_ASSESSMENT | Skin and subcutaneous tissue disorders | MedDRA 12.1 | View |
| Hip arthroplasty | SYSTEMATIC_ASSESSMENT | Surgical and medical procedures | MedDRA 12.1 | View |
| Deep vein thrombosis | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 12.1 | View |
| Haemorrhage | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 12.1 | View |
| Shock haemorrhagic | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 12.1 | View |
| Thrombophlebitis superficial | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 12.1 | View |
| Term | Type | Organ System | Vocab | View |
|---|---|---|---|---|
| Constipation | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Nausea | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Vomiting | SYSTEMATIC_ASSESSMENT | Gastrointestinal disorders | MedDRA 12.1 | View |
| Pyrexia | SYSTEMATIC_ASSESSMENT | General disorders | MedDRA 12.1 | View |
| Haemoglobin decreased | SYSTEMATIC_ASSESSMENT | Investigations | MedDRA 12.1 | View |
| Hypotension | SYSTEMATIC_ASSESSMENT | Vascular disorders | MedDRA 12.1 | View |