Navigation Links
Data Show Common Allergy Tests Are Not Interchangeable

- Results Vary Widely Compared to Established Clinical Standards Using

ImmunoCAP -

PORTAGE, Mich., May 8 /PRNewswire/ -- Data published in the May issue of the Journal of Allergy and Clinical Immunology revealed variations in the results of three common allergy diagnostic blood tests used to quantify sensitivities to allergens. The study, conducted by allergy specialists at Mount Sinai School of Medicine, determined that the laboratory results from two other commercial tests for specific IgE were not equivalent to those measured by ImmunoCAP(R) Specific IgE blood test.

Previously published studies from thought-leading allergists have established threshold values for many food allergens. These values are often used to guide decisions about the severity of a patient's food allergy and subsequent management strategies. These published data are based upon values determined using ImmunoCAP technology, which have become well-established.

"Test results from the three different specific IgE assays are not interchangeable. This study underscores the importance of knowing which test is being used to generate the patient's results, particularly with food allergies, which can be life-threatening," said Robert Reinhardt, MD, professor of family medicine for Michigan State University College of Human Medicine and U.S. Medical Affairs Director, Phadia U.S. Inc.

Specific IgE is produced in the blood as a result of sensitization to an allergen and typically increases with exposure to that substance. High concentrations of food-specific IgE levels are predictive of a food-induced allergic reaction. These ImmunoCAP derived values provide a quantitative assessment of allergen-specific IgE antibody, helping clinicians determine the severity of an allergy and guide patient management strategies.

The assays used in this study included ImmunoCAP, Turbo-MP (Agilent Technologies offered by LabCorp (Laboratory Corporation of America)) and 3gAllergy Universal Module (Siemens' Immulite(R) system). The tests measured specific IgE levels in 50 patients for egg, milk, peanut, cat, birch and dust mite. The results revealed significant differences among the three tests in the measurement of allergen-specific IgE levels, which can impact the clinical decision-making process.

When quantitative evaluation was performed, the Turbo-MP overestimated IgE levels for egg but underestimated levels for dust mite and birch pollen. Differences also were found between Turbo-MP and ImmunoCAP for milk, peanut and cat. The 3gAllergy Universal Module overestimated all allergen-specific IgE levels compared with ImmunoCAP.

"Results from these tests are used to guide treatment decisions, and variability around the decision points can alter clinical management of a suspected allergy," concluded the study authors. "Food allergen avoidance on the basis of inconsistent laboratory results can have profound nutritional and social implications and can significantly affect a child and the child's family's quality of life."

Another study published in the Annals of Allergy, Asthma & Immunology in July 2007 demonstrated that the ImmunoCAP Specific IgE system was directly traceable to the World Health Organization (WHO) standard preparation for total IgE in the detection of quantitative specific IgE antibodies. This traceability to the WHO standard was not equally demonstrated with the Turbo-RAST and 3gAllergy Universal Module specific IgE assays. The study was the first of its kind to compare specific IgE results of different technologies as measured against an independently verified IgE standard.

"These studies further validate ImmunoCAP's overall performance as compared to other specific IgE allergy blood tests, making it a valuable option in the management of allergic disorders," said Michael Land, president and general manager, Phadia U.S. Inc. "Physicians and patients need to be aware that not all allergy blood tests are the same, and here is a study that concludes that interchanging results can put children at unnecessary risk."

Phadia AB, headquartered in Uppsala, Sweden, is the world leader in in vitro IgE diagnostic research and product development. Its U.S. affiliate is in Portage, Michigan. For more information, call Phadia Customer Service at 1-800-346-4364.

SOURCE Phadia U.S. Inc
Copyright©2008 PR Newswire.
All rights reserved

Related medicine news :

1. Common Medications Could Cause Physical Impairment in the Elderly
2. Commonly used medications associated with impaired physical function in older adults
3. NHP Declares Its Quarterly Cash Dividends on Common Stock and Series B Preferred Stock
4. Pennsylvania Pharmacy Carve-out Poses Risks for Commonwealths Neediest Citizens and Taxpayers, National Organization Testifies
5. Delusions Common in Pediatric ICU
6. Daily aspirin may reduce risk of common type of breast cancer
7. Kidney Care Community Applauds National Taxpayers Unions Endorsement of Medicare Reforms to Extend Patient Private Health Insurance Coverage; Calls Proposal Common Sense Coverage Reform
8. Study shows common vitamin and other micronutrient supplements reduce risks of TB recurrence
9. Common Chemotherapy Drug Linked to Memory Problems
10. Obesity, inactivity as common among cancer survivors as rest of Canadians, study shows
11. Common Medications May Harm Memory in Older People
Post Your Comments:
(Date:6/26/2016)... , ... June 26, 2016 , ... Pixel Film Studios ... X. , "Film editors can give their videos a whole new perspective by using ... - CEO of Pixel Film Studios. , ProSlice Levels contains over 30 Different ...
(Date:6/26/2016)... ... ... legally blind and certified personal trainer is helping to develop a weight loss fitness plan ... fix the two major problems leading the fitness industry today:, , ... They don’t eliminate all the reasons people quit their exercise program ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at ... on several important health care topics including advance care planning, healthcare costs and ...
(Date:6/25/2016)... ... ... Bruton Memorial Library on June 21 due to a possible lice infestation, as reported by ... lice: the parasite’s ability to live away from a human host, and to infest common ... the event that lice have simply gotten out of control. , As lice are a ...
(Date:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room , the largest ... as the Medical Director of its new Mesquite-Samuell Farm facility. , “We are ... Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of First Choice Emergency ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... June 23, 2016 Capricor ... ), a biotechnology company focused on the discovery, ... that patient enrollment in its ongoing randomized HOPE-Duchenne ... exceeded 50% of its 24-patient target. Capricor expects ... third quarter of 2016, and to report top ...
(Date:6/23/2016)... June 23, 2016 Bracket , a leading ... next generation clinical outcomes platform, Bracket eCOA (SM) 6.0, ... June 26 – 30, 2016 in Philadelphia ... Clinical Outcome Assessment product of its kind to fully integrate ... Bracket eCOA 6.0 is a flexible platform for electronic ...
(Date:6/23/2016)... INDIANAPOLIS , June 23, 2016 If ... Leaders Scholarship is any indication, the future is in ... at by the Diabetes Scholars Foundation ... the way of academic and community service excellence. ... since 2012, and continues to advocate for people with ...
Breaking Medicine Technology: