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Activase

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Activase

ACTIVASE®
(alteplase)
A Recombinant Tissue Plasminogen Activator

DRUG DESCRIPTION

Activase® (Alteplase) is a tissue plasminogen activator produced by recombinant DNA technology. It is a sterile, purified glycoprotein of 527 amino acids. It is synthesized using the complementary DNA (cDNA) for natural human tissue-type plasminogen activator obtained from a human melanoma cell line. The manufacturing process involves the secretion of the enzyme alteplase into the culture medium by an established mammalian cell line (Chinese Hamster Ovary cells) into which the cDNA for alteplase has been genetically inserted. Fermentation is carried out in a nutrient medium containing the antibiotic gentamicin, 100 mg/L. However, the presence of the antibiotic is not detectable in the final product.

Phosphoric acid and/or sodium hydroxide may be used prior to lyophilization for pH adjustment.

Activase (alteplase) is a sterile, white to off-white, lyophilized powder for intravenous administration after reconstitution with Sterile Water for Injection, USP.

Quantitative Composition of the Lyophilized Product
  100 mg Vial 50 mg Vial
Alteplase 100 mg (58 million IU) 50 mg (29 million IU)
L-Arginine 3.5 g 1.7 g
Phosphoric Acid 1 g 0.5 g
Polysorbate 80 ≤ 11 mg ≤ 4 mg
Vacuum No Yes

Biological potency is determined by an in vitro clot lysis assay and is expressed in International Units as tested against the WHO standard. The specific activity of Activase (alteplase) is 580,000 IU/mg.

Last reviewed on RxList: 5/9/2008
This monograph has been modified to include the generic and brand name in many instances.

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Additional Activase Information

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