Gadoxetate Disodium
FDA Drug Information • Also known as: Eovist
- Brand Names
- Eovist
- Route
- INTRAVENOUS
- Dosage Form
- INJECTION, SOLUTION
- Product Type
- HUMAN PRESCRIPTION DRUG
⚠ Boxed Warning (Black Box)
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. EOVIST 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 EOVIST 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 EOVIST 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. EOVIST 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 EOVIST 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 )
Description
11 DESCRIPTION EOVIST (gadoxetate disodium) injection is a paramagnetic gadolinium-based contrast agent for intravenous use. Gadoxetate disodium (Gd-EOB-DTPA) is a highly water-soluble, hydrophilic compound with a lipophilic moiety, the ethoxybenzyl group (EOB). EOB-DTPA forms a stable complex with the paramagnetic gadolinium ion with a thermodynamic stability of log KGdL=-23.46. The chemical name for gadoxetate disodium is (4S)-4-(4-Ethoxybenzyl)-3,6,9-tris(carboxylatomethyl)-3,6,9-triazaundecanedioic acid, gadolinium complex, disodium salt. Gadoxetate disodium has a molecular weight of 725.72 and an empirical formula of GdC 23 H 28 N 3 O 11 Na 2 . The structural formula of gadoxetate disodium is: EOVIST is a sterile, clear, colorless to pale yellow solution. Each mL contains 181.43 mg (0.25 mmol) of gadoxetate disodium (containing 0.25 mmol of gadolinium) and the following inactive ingredients: 1 mg of caloxetate trisodium, 1.21 mg of trometamol, hydrochloric acid and/or sodium hydroxide (for pH adjustment), and water for injection. EOVIST contains no antimicrobial preservative. Pertinent physiochemical properties of EOVIST are provided in Table 2. Table 2: Physicochemical Properties of EOVIST Parameter Value Osmolality at 37°C (Osm/kg H 2 O) 0.688 Viscosity at 37°C (cP) 1.19 Density at 37°C (g/mL) 1.088 pH 6.8-8 Chemical Structure
What Is Gadoxetate Disodium Used For?
1 INDICATIONS AND USAGE EOVIST is indicated for use in magnetic resonance imaging (MRI) of the liver to detect and characterize lesions in adult and pediatric patients, including term neonates, with known or suspected focal liver disease. EOVIST is a gadolinium-based contrast agent indicated for use in magnetic resonance imaging (MRI) of the liver to detect and characterize lesions in adult and pediatric patients, including term neonates, with known or suspected focal liver disease. ( 1 )
Dosage and Administration
2 DOSAGE AND ADMINISTRATION Recommended dose is 0.025 mmol/kg actual body weight (equivalent to 0.1 mL/kg) administered by intravenous injection at 1 mL/sec to 2 mL/sec. ( 2.1 ) See Full Prescribing Information for administration and imaging instructions. ( 2.2 , 2.3 ) 2.1 Recommended Dose The recommended dose of EOVIST for adult and pediatric patients, including term neonates, is 0.025 mmol/kg actual body weight (equivalent to 0.1 mL/kg) administered intravenously at a recommended rate of 1 mL/sec to 2 mL/sec. 2.2 Administration and Drug Handling EOVIST is for intravenous use only and must not be administered intrathecally [see Warnings and Precautions (5.1) ]. Use aseptic technique when preparing and administering EOVIST. Visually inspect EOVIST for particulate matter and discoloration prior to administration. Do not use the solution if it is discolored or if particulate matter is present. Use EOVIST immediately after obtaining appropriate dose from vial. Pierce the rubber stopper only once. Discard any unused portion of an EOVIST vial. Do not mix EOVIST with other medications and do not administer EOVIST in the same intravenous line simultaneously with other medications. Flush the intravenous cannula with 0.9% Sodium Chloride Injection after EOVIST injection. 2.3 Imaging Liver lesions are detected and characterized with pre-contrast MRI and EOVIST MRI obtained during dynamic and hepatocyte imaging phases. Perform a pre-contrast MRI, inject EOVIST, and begin dynamic imaging approximately 15 seconds to 25 seconds after completion of the injection. Dynamic imaging consists of the arterial, the porto-venous (approximately 60 seconds post-injection), and the blood equilibrium (approximately 120 seconds) phases. Begin the hepatocyte imaging phase approximately 20 minutes post-injection. Hepatocyte phase imaging may be performed up to 120 minutes post-injection. Elevated intrinsic levels of bilirubin (>3 mg/dL) or ferritin can reduce the hepatic contrast effect of EOVIST. Perform MR imaging no later than 60 minutes following EOVIST administration to patients with these laboratory abnormalities, including patients who have elevated ferritin levels due to hemodialysis [see Warnings and Precautions (5.8) and Use in Specific Populations (8.6 , 8.7) ]. Lesions with no or minimal hepatocyte function (cysts, metastases, and the majority of hepatocellular carcinomas) generally will not accumulate EOVIST. Well-differentiated hepatocellular carcinoma may contain functioning hepatocytes and can show some enhancement in the hepatocyte imaging phase. Additional clinical information is therefore needed to support a diagnosis of hepatocellular carcinoma.
Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed elsewhere in the labeling: Nephrogenic systemic fibrosis [see Warnings and Precautions (5.2) ] Hypersensitivity reactions [see Contraindications (4) and Warnings and Precautions (5.3) ] Most common adverse reactions (incidence ≥ 0.5%) are nausea, headache, feeling hot, dizziness, and back pain. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Bayer HealthCare Pharmaceuticals Inc. at 1-888-84-BAYER (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. Adverse Reactions in Adults The safety of EOVIST was evaluated in 1,989 adult subjects who received EOVIST in clinical trials. Overall, 59% of the subjects were male, and the racial and ethnic distribution was 64% White, 22% Asian, 3% Hispanic or Latino, 2% Black or African American, and 0.5% other ethnic groups. The average age was 57 years (age range from 19 to 84 years). Table 1 lists adverse reactions that occurred in ≥ 0.1% of subjects who received the recommended dose of EOVIST in clinical trials. Table 1: Adverse Reactions Reported in ≥ 0.1% of Adult Subjects who Received EOVIST in Clinical Trials Adverse Reaction EOVIST n = 1,581 Rate (%) Nausea 1.1 Headache 1.1 Feeling hot 0.8 Dizziness 0.6 Back pain 0.6 Vomiting 0.4 Blood pressure increased 0.4 Injection site reactions (pain, burning, coldness, extravasation, irritation) 0.4 Dysgeusia 0.4 Paresthesia 0.3 Flushing 0.3 Parosmia 0.3 Pruritus (generalized, eye) 0.3 Rash 0.3 Respiratory disorders (dyspnea, respiratory distress) 0.2 Fatigue 0.2 Chest pain 0.1 Vertigo 0.1 Dry mouth 0.1 Chills 0.1 Feeling abnormal 0.1 Adverse reactions that occurred with a frequency of < 0.1% in subjects who received EOVIST include: tremor, akathisia, bundle branch block, palpitation, oral discomfort, salivary hypersecretion, maculopapular rash, hyperhidrosis, discomfort, and malaise. Elevation of serum iron values and serum bilirubin laboratory values were reported in < 1% of subjects after administration of EOVIST. The values did not exceed more than 3 times the baseline values and returned to baseline within 1 to 4 days. Adverse Reactions in Pediatric Patients In a study of EOVIST in 52 pediatric patients between 2 months of age and 18 years of age, no new safety signals were observed [see Use in Specific Populations (8.4) ]. 6.2 Postmarketing Experience The following additional adverse reactions have been identified during the postmarketing use of EOVIST 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: Tachycardia 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 (5.4) ] Immune System Disorders: Hypersensitivity reactions (anaphylactic shock, hypotension, pharyngolaryngeal edema, urticaria, face edema, rhinitis, conjunctivitis, abdominal pain, hypoesthesia, sneezing, cough and pallor) Psychiatric Disorders: Restlessness Renal Disorders: Nephrogenic systemic fibrosis Respiratory, Thoracic, and Mediastinal Disorders: Acute respiratory distress syndrome, pulmonary edema Skin Disorders: Gadolinium associated plaques
Drug Interactions
7 DRUG INTERACTIONS Serum Iron Test EOVIST contains caloxetate trisodium that can interfere with serum iron determination using complexometric methods (for example, ferrocene complexation method) and may result in falsely high or low values for up to 24 hours after the administration of EOVIST. Conduct serum iron tests either before or at least 24 hours following administration of EOVIST. Serum iron determination using complexometric methods (for example, ferrocene complexation method) may result in falsely high or low values for up to 24 hours. Conduct serum iron tests either before or at least 24 hours following administration. ( 7 )
Contraindications
4 CONTRAINDICATIONS EOVIST is contraindicated in patients with history of severe hypersensitivity reactions to EOVIST [see Warnings and Precautions (5.3) ] . History of severe hypersensitivity reaction to EOVIST ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary GBCAs cross the placenta and result in fetal exposure. In human placental imaging studies, contrast was visualized in the placenta and fetal tissues after maternal GBCA administration. Based on animal studies, use of GBCAs during pregnancy may result in fetal gadolinium retention. Published epidemiological studies on the association between GBCAs and adverse fetal outcomes have reported inconsistent findings and have important methodological limitations (see Data ). In animal reproduction studies, no teratogenicity was observed with repeated daily intravenous administration of gadoxetate disodium to rats during organogenesis at doses up to 32 times the recommended single human dose; however, an increase in preimplantation loss was noted at doses 3.2 times the single human dose. Post implantation loss was observed with repeated daily intravenous administration of gadoxetate disodium to rabbits on gestation days 6 through 18 at doses 26 times the recommended single human dose (see Data ) . Because of the potential risks of gadolinium to the fetus, use EOVIST only if imaging is essential during pregnancy and cannot be delayed. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Human Data Available data regarding exposure to GBCAs during pregnancy from published epidemiological studies are not sufficient to assess the risk of adverse fetal and neonatal effects that may be associated with GBCAs. A retrospective cohort study of over 1.4 million pregnancies in Ontario, Canada, comparing pregnant women who had a GBCA MRI to pregnant women who did not have an MRI, reported a higher occurrence of stillbirths and neonatal deaths in...
Overdosage
10 OVERDOSAGE In case of inadvertent overdosage in patients with severely impaired renal and/or hepatic function, EOVIST can be partially removed by hemodialysis [see Clinical Pharmacology (12.3) ]. For additional overdose management recommendations, consider contacting the Poison Help line at 1-800-222-1222 or consulting a medical toxicologist.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied EOVIST (gadoxetate disodium) injection is supplied at a concentration of 0.25 mmol/mL of gadoxetate disodium as a clear and colorless to pale yellow solution available in the following strengths: 2.5 mmol/10 mL (2.5 mmol/mL) in single-dose vials, boxes of 5 (NDC 50419-320-05) 3.75 mmol/15 mL (2.5 mmol/mL) in single-dose vials, boxes of 5 (NDC 50419-320-15) Storage and Handling Store at 20°C to 25° C (68°F to 77° F); excursions permitted to 15°C to 30° C (59°F to 86°F) [see USP Controlled Room Temperature].
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.