Navigation Links
Study Shows Efficacy of C1-Esterase Inhibitor Concentrate in Treating Acute Attacks of Hereditary Angioedema in Children and Adolescents

BOSTON, Nov. 5, 2011 /PRNewswire/ -- New findings demonstrate that treatment with C1-esterase inhibitor (C1-INH) concentrate is effective in treating acute swelling attacks in children and adolescents with type I or type II hereditary angioedema (HAE), a rare and serious genetic disorder. Study results show that the outcomes of treatment with C1-INH during acute HAE attacks in children and adolescents are comparable to the outcomes observed in adults.  Results of the analysis will be presented today at the 2011 American College of Allergy, Asthma & Immunology (ACAAI) Annual Meeting.

"Hereditary angioedema is a debilitating and potentially life-threatening disease that can be passed from parent to child and impact entire families," said Lynda Schneider, M.D., Associate Professor of Pediatrics at Children's Hospital Boston and lead investigator. "While the benefits of C1-esterase inhibitor have been clearly demonstrated in treating adults with acute attacks of HAE, limited research exists regarding the use of the therapy in pediatric patients. Our findings show that treatment with C1-INH concentrate is consistent across age groups, with the average time to onset of symptom relief and the average time for complete resolution of symptoms comparable in children, adolescents and adults."

HAE is a genetic disorder caused by a deficiency of C1-INH and is inherited in an autosomal dominant manner. Symptoms of HAE include episodes of edema or swelling in the face, abdomen, larynx and extremities. Patients who have abdominal attacks of HAE can experience episodes of severe pain, diarrhea, nausea and vomiting caused by swelling of the intestinal wall. HAE attacks that involve the face can cause painful distortion and painful swelling.  Diagnosis of HAE requires a blood test to confirm low or abnormal levels of C1-INH.

Study Design and Key Findings

In this retrospective, consecutive, cohort analysis of pediatric and adolescent HAE patients enrolled in the International Multicenter Prospective Angioedema C1-INH Trials (I.M.P.A.C.T.) 1 and 2, patients 6 years of age or older but younger than 18 years of age who had type I or II HAE were evaluated. Following an acute attack, patients received a single injection of 20 U/kg C1-INH concentrate and were assessed for up to 4 hours. Efficacy endpoints were the times from start of drug administration to onset of symptom relief and to complete resolution of all symptoms.

During the study period, seven patients each experienced one attack (I.M.P.A.C.T. 1) and nine patients experienced a total of 115 attacks (I.M.P.A.C.T. 2).  In I.M.P.A.C.T. 1, the median times to complete resolution of symptoms were 8.08 hours in pediatric patients and 4.92 hours for all patients receiving C1-INH concentrate. In I.M.P.A.C.T. 2, the median time to onset of symptom relief in the pediatric group was 0.49 hours, which was comparable to the median time for the overall population (0.46 hours). Median times to complete resolution of symptoms were also comparable.

For further information about HAE, please visit the website of the International Patient Organization for C1-Inhibitor Deficiencies, and the disease information website  

About CSL Behring

CSL Behring is a global leader in the plasma protein biotherapeutics industry. Passionate about improving the quality of patients' lives, CSL Behring manufactures and markets a range of safe and effective plasma-derived and recombinant products and related services. The company's therapies are used in the treatment of immune deficiency disorders, hereditary angioedema, hemophilia, von Willebrand disease, other bleeding disorders and inherited emphysema. Other products are used for the prevention of hemolytic diseases in the newborn, in cardiac surgery, organ transplantation and in the treatment of burns. The company also operates one of the world's largest plasma collection networks, CSL Plasma. CSL Behring is a subsidiary of CSL Limited, a biopharmaceutical company with headquarters in Melbourne, Australia. For more information, visit  

Sheila A. Burke, Director, Communications & Public Relations
Worldwide Commercial Operations
CSL Behring
610-878-4209 (o)
484-919-2618 (c)

Copyright©2010 PR Newswire.
All rights reserved

Related medicine technology :

1. Dendreon Announces Publication of Phase 1 Study Highlighting Immunologic and Clinical Activity of Lapuleucel-T (Neuvenge(R)) in Advanced Breast Cancer Patients
2. EDAP Announces Launch of Clinical Study Combining HIFU and Chemotherapy for Localized Aggressive High Risk Prostate Cancer
3. Cephalon Announces Positive Results from a Pivotal Study of FENTORA in Opioid-tolerant Patients with Non-cancer Breakthrough Pain
4. Allos Therapeutics Initiates Study of PDX in Patients with Cutaneous T-Cell Lymphoma
5. Multiple Myeloma Research Consortium (MMRC) Partners with Novartis to Advance Phase II Study of Deacetylase Inhibitor
6. Potential Safety Issue Identified in Ongoing Phase 2 Clinical Study of HCV-796
7. Study Suggests High-Dose Fish Oil May Significantly Improve Behavior in Children with ADHD
8. MicroDose Announces Positive Results From the QDose Inhaled Insulin Glucose Clamp Study
9. Video: Landmark Study in The Lancet: Patients Treated With Betaseron(R) After First MS Attack Experienced Significant Delay in MS Progression
10. MacroGenics Begins Global Phase 2/3 Protege Study in Recent-onset Type 1 Diabetes Mellitus
11. Sarasotas Roskamp Institute Releases Study Defining a Mechanism for Development of Obesity and the Metabolic Syndrome, Forerunners of Type 2 Diabetes
Post Your Comments:
(Date:12/1/2015)... 1, 2015  Eyeon Therapeutics has received a ... treatments based on a charged hydrophilic polymer developed ... The product has been shown to be safe ... Mark Mitchnick , MD, CEO states, "This ... additional polymers in conjunction with a therapeutic agent.  ...
(Date:12/1/2015)... 1, 2015  Athletic apparel company Tommie ... to pay $1.35 million to settle Federal Trade ... copper-infused compression clothing would relieve severe and chronic ... diseases. Tommie Copper,s proposed ... and its founder and chairman Thomas Kallish ...
(Date:12/1/2015)... diciembre de 2015  AccuTEC Blades, una ... precisión, develó hoy un nuevo logo corporativo ... El nuevo logo destaca la experiencia de ... de productos con cuchillas donde "el borde ... --> ...
Breaking Medicine Technology:
(Date:12/1/2015)... ... ... The Multiple System Atrophy Coalition has announced the launch of its MSA Can’t ... today to coincide with Giving Tuesday 2015, a global day of fundraising. , ... be productive, to do simple daily activities like walking to the mailbox and eating ...
(Date:12/1/2015)... ... December 01, 2015 , ... Royal River Natural Foods — a locally-owned, ... post-menopausal women who took the nutritional supplement creatine, along with resistance training for a ... not take creatine. , The report is part of the December 2015 issue of ...
(Date:12/1/2015)... ... 2015 , ... Baptist Medical Center Jacksonville has implanted the ... hospital in the region providing what is known as the world’s smallest pacemaker. ... revealed recently at a medical conference and published in The New England Journal ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... to continue the expansion of the company’s growing product line of food safety ... (Oncorhynchus tshawytscha) and Sockeye (Oncorhynchus nerka) – allow InstantLabs to offer fast, reliable ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... the United States. Podiatrists are well aware that psychology-based patient non-compliance (disobedience of ... often catastrophic contributors to diseases of the diabetic foot. The American Board ...
Breaking Medicine News(10 mins):