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The investigators will conduct a double-blind, randomized controlled trial comparing the safety and effectiveness of ecallantide to conventional therapy. A rescue cross-over design will be used such that patients failing to improve on standard therapy will additionally be treated with ecallantide. Therefore, a historical control cohort will be enrolled for analysis of secondary endpoints. In addition, since some patients treated with conventional therapy may improve rapidly and therefore not be eligible for inclusion in the study, the investigators will enroll these patients as an observational arm to enable the conduct of sensitivity analysis.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Treatment
ecallantide - Kallikrein inhibitor that blocks the production of bradykinin
UC Physicians, Dpt of Internal Medicine, Division of Immunology
Not yet recruiting
University of Cincinnati
Published on BioPortfolio: 2014-08-27T03:17:07-0400
The purpose of this study is to evaluate the efficacy and safety of DX-88 (ecallantide) versus placebo in the treatment of moderate to severe acute attacks of hereditary angioedema.
The purpose of this study is to evaluate the efficacy and safety of repeated doses of ecallantide in the treatment of acute attacks of hereditary angioedema and to allow HAE patients conti...
The objective of this study is to evaluate the formation of antibodies, the occurence of allergic reactions, and the risk of hypercoagulability and hypocoagulability in patients treated wi...
Study of Clinical, Biological Characteristics and Quality of Life of Patients With Hereditary or Acquired Non Drug-induced Bradykinin-mediated Angioedema, Monitored in Besançon's Partner Site Reference Center for Studies of Kinin-mediated Angioedema (CRE
This study aims to describe quality of life in hereditary or acquired non drug-related bradykinin-mediated angioedema patients, using validated questionnaires
The purpose of this study is to assess the efficacy and safety of subcutaneous administration of a liquid formulation of C1 esterase inhibitor for the prevention of angioedema attacks in a...
The lack of specific biomarkers makes the diagnosis of hereditary angioedema (HAE) with normal levels of C1-inhibitor (C1INH) protein (HAE-nl-C1INH) and idiopathic non-histaminergic angioedema (INHA) ...
Hereditary angioedema is characterized by severe, episodic edema of the subcutaneous and mucosal tissue. The disease carries significant morbidity and mortality due to involvement of the gastrointesti...
The plasma contact system contributes to thrombosis in experimental models. Even though our standard blood coagulation tests are prolonged when plasma lacks contact factors, this enzyme system appears...
HAE results in swelling due to KKS dysregulation and bradykinin production. FXII initiates the KKS and we have developed a human antibody that potently inhibits FXII protease activity as a novel proph...
Plasmin is a fibrinolytic factor and a serine protease that activates protease-activated receptors (PARs) to produce endothelium-derived relaxing factors such as nitric oxide and prostacyclin. Nitric ...
Forms of hereditary angioedema that occur due to mutations in the gene for COMPLEMENT C1 INHIBITOR PROTEIN. Type I hereditary angioedema is associated with reduced serum levels of complement C1 inhibitor protein. Type II hereditary angioedema is associated with the production of a non-functional complement C1 inhibitor protein.
Cell surface receptors that bind BRADYKININ and related KININS with high affinity and trigger intracellular changes which influence the behavior of cells. The identified receptor types (B-1 and B-2, or BK-1 and BK-2) recognize endogenous KALLIDIN; t-kinins; and certain bradykinin fragments as well as bradykinin itself.
Endogenous peptides present in most body fluids. Certain enzymes convert them to active KININS which are involved in inflammation, blood clotting, complement reactions, etc. Kininogens belong to the cystatin superfamily. They are cysteine proteinase inhibitors. HIGH-MOLECULAR-WEIGHT KININOGEN; (HMWK); is split by plasma kallikrein to produce BRADYKININ. LOW-MOLECULAR-WEIGHT KININOGEN; (LMWK); is split by tissue kallikrein to produce KALLIDIN.
Swelling involving the deep DERMIS, subcutaneous, or submucosal tissues, representing localized EDEMA. Angioedema often occurs in the face, lips, tongue, and larynx.
An aromatase inhibitor that produces a state of "medical" adrenalectomy by blocking the production of adrenal steroids. It also blocks the conversion of androgens to estrogens. Aminoglutethimide has been used in the treatment of advanced breast and prostate cancer. It was formerly used for its weak anticonvulsant properties. (From Martindale, The Extra Pharmacopoeia, 30th ed, p454)
Of all the types of Dementia, Alzheimer's disease is the most common, affecting around 465,000 people in the UK. Neurons in the brain die, becuase 'plaques' and 'tangles' (mis-folded proteins) form in the brain. People with Al...
Allergies Automimmune Disease Human Papillomavirus (HPV) Immunology Vaccine Immunology is the study of immunity and the defence mechanisms of the body. A greater understanding of immunology is needed to develop vaccines, understand ...