Lanadelumab
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Lanadelumab is a plasma kallikrein inhibitor used to treat attacks of hereditary angioedema.
Lanadelumab is a plasma kallikrein inhibitor used to treat attacks of hereditary angioedema.
Lanadelumab is a plasma kallikrein inhibitor. This enzyme works by cleaving high molecular weight kininogen to generate the pro-inflammatory peptide bradykinin which is a potent vasodilator. The activity of plasma kallikrein is regulated by the activity of C1-inhibitor and thus, the patients that are deficient in C1 are known to be correlated to excessive production of bradykinin which will further lead to fatal angioedema. Hence, lanadelumab occludes the proteolytic active site of plasma kallikrein, preventing the cleavage of kininogen to bradykinin. It is a selective inhibitor as it has been reported that lanadelumab does not bind to prekallikrein or to inhibit any other serine proteases. The activity of lanadelumab works as an additional checkpoint for the patients suffering from C1 deficiency.
Lanadelumab is indicated for the prophylaxis treatment to prevent attacks in adult and pediatric patients aged 2 years and older with hereditary angioedema. The hereditary angioedema (HEA) is an autosomal dominant disorder resulted from the presence of C1 deficiency. Some reports have indicated a high prevalence of cases that result from spontaneous mutations which can be inherited. This condition is manifested by attacks of subcutaneous or submucosal edema in the face, larynx, GI tract, limbs or genitalia. From all the types of attacks, the most serious is the laryngeal as it can compromise the airway. The rest of the attacks are accompanied by pain and considerable dysfunction.
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