Drug
Inotuzumab Ozogamicin
Important: Reactions below are the flagged terms from this drug’s
FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate
disproportionality in spontaneous reporting, not causation.
Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.
| Reaction | Co-reports (a) | PRR | ROR | Signal | |
|---|---|---|---|---|---|
| 1 | Cytokine Release Syndrome | 133 | 50.2 | 52.5 | signal |
| 2 | Cytopenia | 57 | 34.2 | 34.9 | signal |
| 3 | Neoplasm Progression | 155 | 31.7 | 33.4 | signal |
| 4 | Febrile Neutropenia | 265 | 28.7 | 31.4 | signal |
| 5 | Thrombotic Microangiopathy | 31 | 22.9 | 23.2 | signal |
| 6 | Neurotoxicity | 55 | 22.7 | 23.1 | signal |
| 7 | Blood Bilirubin Increased | 82 | 21.7 | 22.3 | signal |
| 8 | Hyperbilirubinaemia | 30 | 20.8 | 21.1 | signal |
| 9 | Multiple Organ Dysfunction Syndrome | 81 | 20.8 | 21.3 | signal |
| 10 | Subdural Haematoma | 31 | 15.4 | 15.6 | signal |
| 11 | Hepatotoxicity | 47 | 15.2 | 15.4 | signal |
| 12 | Ascites | 62 | 15.1 | 15.4 | signal |
| 13 | Bacteraemia | 23 | 14.0 | 14.1 | signal |
| 14 | Lymphocyte Count Decreased | 34 | 13.7 | 13.9 | signal |
| 15 | Mucosal Inflammation | 47 | 12.9 | 13.1 | signal |
| 16 | Hepatomegaly | 17 | 12.3 | 12.4 | signal |
| 17 | Encephalopathy | 38 | 11.1 | 11.2 | signal |
| 18 | Myelosuppression | 50 | 10.5 | 10.7 | signal |
| 19 | Bone Marrow Failure | 29 | 10.1 | 10.2 | signal |
| 20 | Haematotoxicity | 13 | 10.0 | 10.1 | signal |
| 21 | Neutrophil Count Decreased | 55 | 9.7 | 9.9 | signal |
| 22 | Thrombocytopenia | 148 | 9.5 | 9.9 | signal |
| 23 | Blood Lactate Dehydrogenase Increased | 20 | 9.0 | 9.0 | signal |
| 24 | Liver Function Test Increased | 26 | 8.7 | 8.8 | signal |
| 25 | Sepsis | 136 | 8.7 | 9.1 | signal |
| 26 | Hyperglycaemia | 44 | 8.7 | 8.8 | signal |
| 27 | Lymphopenia | 16 | 8.1 | 8.2 | signal |
| 28 | Platelet Count Decreased | 121 | 8.1 | 8.4 | signal |
| 29 | Acute Hepatic Failure | 15 | 7.9 | 7.9 | signal |
| 30 | Hepatic Failure | 33 | 7.8 | 7.9 | signal |
| 31 | Aspartate Aminotransferase Increased | 57 | 7.7 | 7.8 | signal |
| 32 | Cytomegalovirus Infection | 17 | 7.3 | 7.3 | signal |
| 33 | Covid-19 Pneumonia | 12 | 7.2 | 7.2 | signal |
| 34 | Transaminases Increased | 22 | 7.1 | 7.1 | signal |
| 35 | Myelodysplastic Syndrome | 14 | 6.9 | 6.9 | signal |
| 36 | Hyponatraemia | 54 | 6.9 | 7.0 | signal |
| 37 | Pancytopenia | 53 | 6.8 | 6.9 | signal |
| 38 | Septic Shock | 39 | 6.4 | 6.5 | signal |
| 39 | Alanine Aminotransferase Increased | 54 | 6.3 | 6.4 | signal |
| 40 | Neutropenia | 118 | 6.2 | 6.4 | signal |
| 41 | Clostridium Difficile Colitis | 9 | 6.1 | 6.1 | signal |
| 42 | Blood Alkaline Phosphatase Increased | 21 | 6.0 | 6.1 | signal |
| 43 | Device Related Infection | 13 | 6.0 | 6.0 | signal |
| 44 | Therapy Non-responder | 37 | 5.9 | 6.0 | signal |
| 45 | Mental Status Changes | 23 | 5.9 | 6.0 | signal |
| 46 | Gamma-glutamyltransferase Increased | 18 | 5.8 | 5.8 | signal |
| 47 | Acute Myeloid Leukaemia | 12 | 5.5 | 5.5 | signal |
| 48 | Acute Respiratory Distress Syndrome | 13 | 5.2 | 5.3 | signal |
| 49 | Generalised Tonic-clonic Seizure | 12 | 5.2 | 5.3 | signal |
| 50 | Ileus | 9 | 5.2 | 5.2 | signal |
| 51 | Therapy Partial Responder | 11 | 5.2 | 5.2 | signal |
| 52 | Nephropathy Toxic | 8 | 5.1 | 5.1 | signal |
| 53 | Pneumocystis Jirovecii Pneumonia | 7 | 5.0 | 5.0 | signal |
| 54 | Lung Infection | 11 | 5.0 | 5.0 | signal |
| 55 | Hypokalaemia | 31 | 4.8 | 4.9 | signal |
| 56 | White Blood Cell Count Decreased | 73 | 4.8 | 4.9 | signal |
| 57 | Adrenal Insufficiency | 8 | 4.8 | 4.8 | signal |
| 58 | Lower Respiratory Tract Infection | 30 | 4.7 | 4.8 | signal |
| 59 | Upper Gastrointestinal Haemorrhage | 11 | 4.7 | 4.7 | signal |
| 60 | Hypomagnesaemia | 9 | 4.6 | 4.6 | signal |
| 61 | Infection | 93 | 4.6 | 4.7 | signal |
| 62 | Hepatic Encephalopathy | 6 | 4.6 | 4.6 | signal |
| 63 | Hepatic Cirrhosis | 12 | 4.6 | 4.6 | signal |
| 64 | Oesophagitis | 7 | 4.6 | 4.6 | signal |
| 65 | Disseminated Intravascular Coagulation | 9 | 4.6 | 4.6 | signal |
| 66 | Hepatic Function Abnormal | 23 | 4.4 | 4.5 | signal |
| 67 | Shock | 14 | 4.4 | 4.4 | signal |
| 68 | Liver Disorder | 27 | 4.4 | 4.4 | signal |
| 69 | Staphylococcal Infection | 20 | 4.3 | 4.3 | signal |
| 70 | Haemorrhage Intracranial | 9 | 4.3 | 4.3 | signal |
| 71 | Drug Resistance | 15 | 4.2 | 4.2 | signal |
| 72 | Drug-induced Liver Injury | 17 | 3.9 | 4.0 | signal |
| 73 | Urosepsis | 5 | 3.9 | 3.9 | signal |
| 74 | Skin Infection | 6 | 3.8 | 3.8 | signal |
| 75 | Body Temperature Increased | 11 | 3.8 | 3.8 | signal |
| 76 | Pancreatitis | 28 | 3.8 | 3.8 | signal |
| 77 | Posterior Reversible Encephalopathy Syndrome | 5 | 3.8 | 3.8 | signal |
| 78 | Cholestasis | 10 | 3.7 | 3.7 | signal |
| 79 | Hepatocellular Injury | 7 | 3.5 | 3.5 | signal |
| 80 | Hepatic Cytolysis | 6 | 3.5 | 3.5 | signal |
| 81 | Euphoric Mood | 5 | 3.5 | 3.5 | signal |
| 82 | Coagulopathy | 8 | 3.4 | 3.4 | signal |
| 83 | Hypocalcaemia | 9 | 3.4 | 3.4 | signal |
| 84 | Full Blood Count Abnormal | 5 | 3.4 | 3.4 | signal |
| 85 | Full Blood Count Decreased | 9 | 3.2 | 3.2 | signal |
| 86 | Gingival Bleeding | 6 | 3.1 | 3.1 | signal |
| 87 | Eyelid Oedema | 5 | 3.1 | 3.1 | signal |
| 88 | Leukopenia | 20 | 2.9 | 2.9 | signal |
| 89 | Death | 343 | 2.8 | 3.1 | signal |
| 90 | Disease Recurrence | 17 | 2.5 | 2.6 | signal |
| 91 | Neoplasm | 4 | 2.5 | 2.5 | no signal |
| 92 | Blood Count Abnormal | 5 | 2.3 | 2.3 | no signal |
| 93 | Leukaemia | 3 | 2.3 | 2.3 | no signal |
| 94 | Malignant Neoplasm Progression | 32 | 2.2 | 2.3 | signal |
| 95 | Lactic Acidosis | 9 | 2.0 | 2.0 | no signal |
| 96 | Drug Effective For Unapproved Indication | 7 | 1.7 | 1.7 | no signal |
| 97 | Extrapyramidal Disorder | 3 | 0.9 | 0.9 | no signal |