WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS Risk Associated with Intrathecal Use Intrathecal administration of gadolinium-based contrast agents (GBCAs) can cause serious adverse reactions including death, coma, encephalopathy, and seizures. GADAVIST is not approved for intrathecal use [see Warnings and Precautions (5.1) ]. Nephrogenic Systemic Fibrosis GBCAs increase the risk for nephrogenic systemic fibrosis (NSF) among patients with impaired elimination of the drugs. Avoid use of GADAVIST in these patients unless the diagnostic information is essential and not available with non-contrasted MRI or other modalities. NSF may result in fatal or debilitating fibrosis affecting the skin, muscle and internal organs. The risk for NSF appears highest among patients with: Chronic, severe kidney disease (GFR < 30 mL/min/1.73m 2 ), or Acute kidney injury. Screen patients for acute kidney injury and other conditions that may reduce renal function. For patients at risk for chronically reduced renal function (for example, age > 60 years, hypertension or diabetes), estimate the glomerular filtration rate (GFR) through laboratory testing. For patients at highest risk for NSF, do not exceed the recommended GADAVIST dose and allow a sufficient period of time for elimination of the drug from the body prior to any re-administration [see Warnings and Precautions (5.2) ]. WARNING: RISK ASSOCIATED WITH INTRATHECAL USE and NEPHROGENIC SYSTEMIC FIBROSIS See full prescribing information for complete boxed warning. Intrathecal administration of gadolinium-based contrast agents (GBCAs) can cause serious adverse reactions including death, coma, encephalopathy, and seizures. GADAVIST is not approved for intrathecal use. ( 5.1 ) GBCAs increase the risk for nephrogenic systemic fibrosis (NSF) among patients with impaired elimination of the drugs. Avoid use of GADAVIST in these patients unless the diagnostic information is essential and not available with non-contrasted MRI or other modalities. The risk for NSF appears highest among patients with: Chronic, severe kidney disease (GFR < 30 mL/min/1.73m 2 ), or Acute kidney injury. Screen patients for acute kidney injury and other conditions that may reduce renal function. For patients at risk for chronically reduced renal function (for example, age >60 years, hypertension or diabetes), estimate the glomerular filtration rate (GFR) through laboratory testing. ( 5.2 )
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warnings and cautions
5 WARNINGS AND PRECAUTIONS Hypersensitivity Reactions: Anaphylactic and other hypersensitivity reactions with cardiovascular, respiratory or cutaneous manifestations, ranging from mild to severe, including death, have occurred. Monitor patients closely during and after administration of GADAVIST. ( 5.3 ) Acute Respiratory Distress Syndrome: For patients demonstrating respiratory distress after administration, assess oxygen requirement and monitor for worsening respiratory function. ( 5.4 ) Gadolinium Retention: Gadolinium is retained for months or years in brain, bone, and other organs. ( 5.5 ) 5.1 Risk Associated with Intrathecal Use Intrathecal administration of GBCAs can cause serious adverse reactions including death, coma, encephalopathy, and seizures. The safety and effectiveness of GADAVIST have not been established with intrathecal use. GADAVIST is not approved for intrathecal use [see Dosage and Administration (2.2) ]. 5.2 Nephrogenic Systemic Fibrosis GBCAs increase the risk for nephrogenic systemic fibrosis (NSF) among patients with impaired elimination of the drugs. Avoid use of GADAVIST among these patients unless the diagnostic information is essential and not available with non-contrast MRI or other modalities. The GBCA-associated NSF risk appears highest for patients with chronic, severe kidney disease (GFR < 30 mL/min/1.73m 2 ) as well as patients with acute kidney injury. The risk appears lower for patients with chronic, moderate kidney disease (GFR 30 to 59 mL/min/1.73m 2 ) and little, if any, for patients with chronic, mild kidney disease (GFR 60 to 89 mL/min/1.73m 2 ). NSF may result in fatal or debilitating fibrosis affecting the skin, muscle and internal organs. Report any diagnosis of NSF following GADAVIST administration to Bayer Healthcare (1-888-842-2937) or FDA (1-800-FDA-1088 or www.fda.gov/medwatch). Screen patients for acute kidney injury and other conditions that may reduce renal function. Features of acute kidney injury consist of rapid (over hours to days) and usually reversible decrease in kidney function, commonly in the setting of surgery, severe infection, injury or drug-induced kidney toxicity. Serum creatinine levels and estimated GFR may not reliably assess renal function in the setting of acute kidney injury. For patients at risk for chronically reduced renal function (for example, age > 60 years, diabetes mellitus or chronic hypertension), estimate the GFR through laboratory testing. Among the factors that may increase the risk for NSF are repeated or higher than recommended doses of a GBCA and degree of renal impairment at the time of exposure. Record the specific GBCA and the dose administered to a patient. For patients at highest risk for NSF, do not exceed the recommended GADAVIST dose and allow a sufficient period of time for elimination of the drug prior to re-administration. For patients receiving hemodialysis, consider the prompt initiation of hemodialysis following the administration of a GBCA in order to enhance the contrast agent's elimination [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3) ] . The usefulness of hemodialysis in the prevention of NSF is unknown . 5.3 Hypersensitivity Reactions Anaphylactic and other hypersensitivity reactions with cardiovascular, respiratory or cutaneous manifestations, ranging from mild to severe, have occurred following GADAVIST administration [see Adverse Reactions (6.1 , 6.2) ]. There have been reports of life-threatening and fatal outcomes from these adverse reactions. Most hypersensitivity reactions to GADAVIST have occurred within half an hour after administration. Delayed reactions can occur up to several days after administration. Before GADAVIST administration, assess all patients for any history of a reaction to contrast media, bronchial asthma and/or allergic disorders. These patients may have an increased risk for a hypersensitivity reaction to GADAVIST. GADAVIST is contraindicated in patients with history of hypersensitivity reactions to GADAVIST [see Contraindications (4) ]. Administer GADAVIST only in situations where trained personnel and therapies are promptly available for the treatment of hypersensitivity reactions, including personnel trained in resuscitation. Observe patients for signs and symptoms of hypersensitivity reactions during and following GADAVIST administration. 5.4 Acute Respiratory Distress Syndrome Acute respiratory distress syndrome (ARDS) has been reported in patients administered GADAVIST and may be characterized by severe hypoxemia requiring oxygen support and mechanical ventilation. These manifestations may resemble an immediate hypersensitivity reaction with onset of respiratory distress within <30 minutes to 24 hours after GADAVIST administration. For patients demonstrating respiratory distress after GADAVIST administration, assess oxygen requirement and monitor for worsening respiratory function. 5.5 Gadolinium Retention Gadolinium is retained for months or years in several organs. The highest concentrations (nanomoles per gram of tissue) have been identified in the bone, followed by other organs (for example, brain, skin, kidney, liver, and spleen). The duration of retention also varies by tissue and is longest in bone. Linear GBCAs cause more retention than macrocyclic GBCAs. At equivalent doses, gadolinium retention varies among the linear agents with gadodiamide causing greater retention than other linear agents such as gadoxetate disodium and gadobenate dimeglumine. Retention is lowest and similar among the macrocyclic GBCAs such as gadoterate meglumine, gadobutrol, gadoteridol, and gadopiclenol. Consequences of gadolinium retention in the brain have not been established. Pathologic and clinical consequences of GBCA administration and retention in skin and other organs have been established in patients with impaired renal function [see Warnings and Precautions (5.2) ] . There are rare reports of pathologic skin changes in patients with normal renal function. Adverse events involving multiple organ systems have been reported in patients with normal renal function without an established causal link to gadolinium retention [see Adverse Reactions (6.2) ] . While clinical consequences of gadolinium retention have not been established in patients with normal renal function, certain patients might be at higher risk. These include patients requiring multiple lifetime doses, pregnant and pediatric patients, and patients with inflammatory conditions. Consider the retention characteristics of the agent when choosing a GBCA for these patients. Minimize repetitive GBCA imaging studies particularly closely spaced studies, when possible. 5.6 Acute Kidney Injury In patients with chronic renal impairment, acute kidney injury sometimes requiring dialysis has been observed with the use of some GBCAs. Do not exceed the recommended dose; the risk of acute kidney injury may increase with higher than recommended doses. 5.7 Extravasation and Injection Site Reactions Injection site reactions have been reported in clinical studies with GADAVIST [see Adverse Reactions (6.1) ]. Extravasation into tissues during GADAVIST administration may result in moderate irritation [see Nonclinical Toxicology (13.2) ]. Ensure catheter and venous patency before the injection of GADAVIST. 5.8 Overestimation of Extent of Malignant Disease in MRI of the Breast GADAVIST MRI of the breast overestimated the histologically confirmed extent of malignancy in the diseased breast in up to 50% of the patients [see Clinical Studies (14.2) ]. 5.9 Low Sensitivity for Significant Arterial Stenosis The performance of GADAVIST MRA for detecting arterial segments with significant stenosis (>50% renal, >70% supra-aortic) has not been shown to exceed 55% . Therefore, a negative MRA study alone should not be used to rule out significant stenosis [see Clinical Studies (14.3) ].
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed elsewhere in labeling: Nephrogenic Systemic Fibrosis [see Warnings and Precautions (5.2) ] Hypersensitivity reactions [see Contraindications (4) and Warnings and Precautions (5.3) ] Acute Respiratory Distress Syndrome [see Warnings and Precautions (5.4) ] Most common adverse reactions (incidence ≥ 0.5%) are headache, nausea, and dizziness ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Bayer HealthCare Pharmaceuticals Inc. at 1-888-842-2937 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. The safety of GADAVIST was evaluated in 7,713 subjects (including 184 pediatric population, ages 0 to 17 years) who received GADAVIST in clinical trials. Approximately 52% of the subjects were male and the racial and ethnic distribution was 62% White, 28% Asian, 5% Hispanic or Latino, 2.5% Black or African American, and 2.5% other ethnic groups. The average age was 56 years (range from 1 week to 93 years). Table 2 lists adverse reactions that occurred in ≥ 0.1% subjects who received GADAVIST. Table 2: Adverse Reactions Reported in ≥0.1% Subjects who Received GADAVIST in Clinical Trials Adverse Reaction GADAVIST n=7,713 Rate (%) Headache 1.7 Nausea 1.2 Dizziness 0.5 Dysgeusia 0.4 Feeling Hot 0.4 Injection site reactions 0.4 Vomiting 0.4 Rash (includes generalized, macular, papular, pruritic) 0.3 Erythema 0.2 Paresthesia 0.2 Pruritus (includes generalized) 0.2 Dyspnea 0.1 Urticaria 0.1 Adverse reactions that occurred with a frequency of < 0.1% in subjects who received GADAVIST include: hypersensitivity/anaphylactic reaction, loss of consciousness, convulsion, parosmia, tachycardia, palpitation, dry mouth, malaise and feeling cold. Adverse Reactions in Pediatric Patients The frequency, type, and severity of adverse reactions observed in pediatric patients from the clinical studies were similar to adverse reactions in adults [ s ee Use in Specific Populations (8.4) ] . 6.2 Postmarketing Experience The following additional adverse reactions have been identified during postmarketing use of GADAVIST or other GBCAs. Because these reactions are reported voluntarily from a population of uncertain size, it is not possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Cardiac Disorders: Cardiac arrest Gastrointestinal Disorders: Acute pancreatitis with onset within 48 hours after GBCA administration General Disorders and Administration Site Conditions: Fatigue, asthenia, pain syndromes, and heterogeneous clusters of symptoms in the neurological, cutaneous, and musculoskeletal systems with variable onset and duration after GBCA administration [see Warnings and Precautions (5.5) ] Immune System Disorders: Hypersensitivity reactions (anaphylactic shock, circulatory collapse, respiratory arrest, bronchospasm, cyanosis, oropharyngeal swelling, laryngeal edema, blood pressure increased, chest pain, angioedema, conjunctivitis, hyperhidrosis, cough, sneezing, burning sensation, and pallor) Renal Disorders: Nephrogenic systemic fibrosis Respiratory, Thoracic, and Mediastinal Disorders: Acute respiratory distress syndrome, pulmonary edema Skin Disorders: Gadolinium associated plaques