Drugs Similar to OPTISON PERFLUTREN PROTEIN-TYPE A MICROSPHERES

DEFINITY ( perflutren lipid microsphere ) injectable suspension is, after activation an ultrasound contrast agent for intravenous use. The perflutren lipid microspheres are composed of perflutren encapsulated in an outer lipid shell consisting of (R) – hexadecanoic acid, 1-[(phosphonoxy)methyl]-1,2-ethanediyl ester, monosodium salt (abbreviated DPPA); (R) - 4-hydroxy-N,N,N-trimethyl-10-oxo-7-[(1-oxohexadecyl)oxy]-3,4,9-trioxa-4-phosphapentacosan-1-aminium, 4-oxide, inner salt (abbreviated DPPC); and (R)-∝-[6-hydroxy-6-oxido-9-[(1-oxohexadecyl)oxy]-5,7,11-trioxa-2-aza-6-phosphahexacos-1-yl]- ω-methoxypoly(ox-1,2-ethanediyl), monosodium salt; commonly called N-( m ethoxy p oly e thylene g lycol 5000 carbamoyl)-1,2- d i p almitoyl-sn-glycero-3- p hosphatidyl e thanolamine, monosodium salt (abbreviated MPEG5000 DPPE). Perflutren is chemically characterized as 1,1,1,2,2,3,3,3-octafluoropropane. It has a molecular weight of 188, empirical formula of C 3 F 8 and has the following structural formula: DPPA has a molecular weight of 670, empirical formula of C 35 H 68 O 8 PNa, and following structural formula: DPPC has a molecular weight of 734, empirical formula of C 40 H 80 NO 8 P, and following structural formula: MPEG5000 DPPE has an approximate molecular weight of 5750 represented by empirical formula C 265 H 527 NO 123 PNa, contains <100ppm Ca 2+ and Mg 2+ and the following structural formula: Prior to activation, perflutren is in the headspace of the vial with a concentration of 6.52 mg/mL which is confirmed by positive IR spectroscopic testing in every vial. The lipid blend is in the clear, colorless, hypertonic, sterile liquid. Each mL of the liquid contains 0.75 mg lipid blend (consisting of 0.045 mg DPPA, 0.401 mg DPPC, and 0.304 mg MPEG5000 DPPE) and the following inactive ingredients: 103.5 mg propylene glycol, 126.2 mg glycerin, 2.34 mg sodium phosphate monobasic monohydrate, 2.16 mg sodium phosphate dibasic heptahydrate, and 4.87 mg sodium chloride in water for injection. The pH is 6.2 to 6.8. DEFINITY does not contain bacterial preservative. After activation with the aid of the VIALMIX or VIALMIX RFID, each mL of the activated DEFINITY as homogenous milky white suspension contains a maximum of 1.2 × 10 10 perflutren lipid microspheres, and about 150 microL/mL (1.1 mg/mL) perflutren. The microsphere particle size parameters are listed in Table 2 below: Table 2 Microsphere Size Distribution Microsphere particle size parameters Mean diameter range 1.1 µm – 3.3 µm Percent less than 10 µm 98% Maximum diameter 20 µm Chemical Structure Chemical Structure Chemical Structure Chemical Structure

DEFINITY RT (perflutren lipid microsphere) injectable suspension is, after activation, an ultrasound contrast agent for intravenous use. The perflutren lipid microspheres are composed of perflutren encapsulated in an outer lipid shell consisting of (R) – hexadecanoic acid, 1-[(phosphonoxy)methyl]-1,2-ethanediyl ester, monosodium salt (abbreviated DPPA); (R) - 4-hydroxy-N,N,N-trimethyl-10-oxo-7-[(1-oxohexadecyl)oxy]-3,4,9-trioxa-4-phosphapentacosan-1-aminium, 4-oxide, inner salt (abbreviated DPPC); and (R)- ∝-[6-hydroxy-6-oxido-9-[(1-oxohexadecyl)oxy]-5,7,11-trioxa-2-aza-6-phosphahexacos-1-yl]- ω-methoxypoly(ox-1,2-ethanediyl), monosodium salt; commonly called N-( m ethoxy p oly e thylene g lycol 5000 carbamoyl)-1,2- d i p almitoyl-sn-glycero-3- p hosphatidyl e thanolamine, monosodium salt (abbreviated MPEG5000 DPPE). Perflutren is chemically characterized as 1,1,1,2,2,3,3,3-octafluoropropane. It has a molecular weight of 188, empirical formula of C 3 F 8 and has the following structural formula: DPPA has a molecular weight of 670, empirical formula of C 35 H 68 O 8 PNa, and following structural formula: DPPC has a molecular weight of 734, empirical formula of C 40 H 80 NO 8 P, and following structural formula: MPEG5000 DPPE has an approximate molecular weight of 5750 represented by empirical formula C 265 H 527 NO 123 PNa, contains <100ppm Ca 2+ and Mg 2+ and the following structural formula: Prior to activation, perflutren is in the headspace of the vial with a concentration of 6.52 mg/mL which is confirmed by positive IR spectroscopic testing in every vial. The lipid blend is in the clear, colorless to translucent (hazy), viscous sterile solution. Each mL of the solution contains 3.75 mg lipid blend (consisting of 0.225 mg DPPA, 2.005 mg DPPC, and 1.520 mg MPEG5000 DPPE) and the following inactive ingredients: 517.5 mg propylene glycol, 631 mg glycerin, 0.370 mg anhydrous sodium acetate, and 0.030 mg glacial acetic acid. The pH is 5.2 to 6.4. DEFINITY RT does not contain bacterial preservative. After activation with the aid of VIALMIX RFID and dilution with 1.4 mL of preservative-free 0.9% Sodium Chloride, Injection, USP, each mL of the activated DEFINITY RT as homogeneous milky white suspension contains 0.045 mg DPPA, 0.401 mg DPPC, 0.304 mg MPEG5000 DPPE, 0.074 mg anhydrous sodium acetate, 0.006 mg glacial acetic acid, a maximum of 1.2 × 10 10 perflutren lipid microspheres, and about 80 microL/mL (0.65 mg/mL) perflutren. The microsphere particle size parameters are listed in Table 2 below: Table 2 Microsphere Size Distribution Microsphere particle size parameters Mean diameter range 1.1 µm – 3.3 µm Percent less than 10 µm 98% Maximum diameter 20 µm Chemical Structure Chemical Structure Chemical Structure Chemical Structure