Ecallantide

Ecallantide (trade name Kalbitor) is a drug used for the treatment of hereditary angioedema (HAE) and in the prevention of blood loss in cardiothoracic surgery. It is an inhibitor of the protein kallikrein and a 60-amino acid polypeptide which was developed from a Kunitz domain through phage display to mimic antibodies inhibiting kallikrein.

Ecallantide
Clinical data
Trade namesKalbitor
Other namesDX-88
AHFS/Drugs.comMonograph
License data
Routes of
administration
Subcutaneous injection
ATC code
Legal status
Legal status
Pharmacokinetic data
Elimination half-life1.5–2.5 hours
ExcretionKidney
Identifiers
  • [Glu20,Ala21,Arg36,Ala38,His39,Pro40,Trp42]tissue factor pathway inhibitor (human)-(20-79)-peptide (modified on reactive bond region Kunitz inhibitor 1 domain containing fragment)
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
ChEMBL
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC305H442N88O91S8
Molar mass7053.90 g·mol−1
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