Overview
11 DESCRIPTION Lumason (sulfur hexafluoride lipid-type A microspheres) for injectable suspension, for intravenous or intravesical use is used to prepare the ultrasound contrast agent. Lumason is supplied in two presentations (single patient use kit or 20-vial pack): The single patient use kit contains the following three items: one clear glass 10 mL vial containing 25 mg of white lyophilized...
Mechanism of Action
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Within the blood, the acoustic impedance of Lumason microspheres is lower than that of the surrounding non-aqueous tissue. Therefore, an ultrasound beam is reflected from the interface between the microspheres and the surrounding tissue. The reflected ultrasound signal provides a visual image that shows a contrast between the blood and the surrounding tissues. For ultrasonography of the urinary tract in pediatric patients, the intravesically administered Lumason microspheres increase signal intensity of fluids within the urethra, bladder, ureters, and renal pelvis. 12.2 Pharmacodynamics Lumason provides useful echocardiographic signal intensity for two minutes after intravenous injection.
Indications
- 1 INDICATIONS AND USAGE Echocardiography Lumason is indicated for use in adult and pediatric patients with suboptimal echocardiograms to opacify the left ventricular chamber and to improve the delineation of the left ventricular endocardial border. Ultrasonography of the Liver Lumason is indicated for use with ultrasound of the liver in adult and pediatric patients to characterize focal liver lesions. Ultrasonography of the Urinary Tract Lumason is indicated for use in ultrasonography of the urinary tract in pediatric patients for the evaluation of suspected or known vesicoureteral reflux.
Common Doses
- 2 mL
- 0.03 mL
- 2.4 mL
- 1 mL
Dosage
2 DOSAGE AND ADMINISTRATION Avoid intra-arterial injection ( 2.1 , 5.3 ) See Full Prescribing Information for reconstitution instructions ( 2.3 ) For intravenous injection : Echocardiography in adults: After reconstitution, administer 2 mL as an intravenous injection ( 2.2 , 2.4 ) Echocardiography in pediatric patients: After reconstitution, administer 0.03 mL per kg as an intravenous injection up to a maximum of 2 mL per injection ( 2.2 , 2.4 ) Ultrasonography of the liver in adults: After reconstitution, administer 2.4 mL as an intravenous injection ( 2.2 , 2.
Black Box Warning
WARNING: SERIOUS CARDIOPULMONARY REACTIONS Serious cardiopulmonary reactions, including fatalities, have occurred uncommonly during or following the injection of ultrasound contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions ( 5.1 )] . Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions ( 5.1 )] . Assess all patients for the presence of any condition that precludes administration [see Contraindications ( 4 )] .
Contraindications
- 4 CONTRAINDICATIONS Lumason is contraindicated in patients with known or suspected: Hypersensitivity to sulfur hexafluoride lipid microsphere or its components, such as polyethylene glycol (PEG) [see Warnings and Precautions ( 5.2 ) and Description ( 11 )] . Hypersensitivity to sulfur hexafluoride lipid microspheres or its components, such as polyethylene glycol (PEG) ( 4 )
Side Effects
- 6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Cardiopulmonary reactions [see Warnings and Precautions ( 5.1 )] Hypersensitivity reactions [see Warnings and Precautions ( 5.2 )] Most common adverse reactions (incidence ≥ 0.5%) are headache and nausea ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Bracco Diagnostics Inc at 1-800-257-5181 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.
Interactions
- No major interactions listed on the FDA label. Always consult a healthcare professional.