Peanut oral immunotherapy dose variations do not result in allergic reactions

2018 ◽  
Vol 29 (2) ◽  
pp. 218-220 ◽  
Author(s):  
Sara Anvari ◽  
Daisy Tran ◽  
Avina Nguyen ◽  
Sridevi Devaraj ◽  
Carla M. Davis
2020 ◽  
Vol 8 (7) ◽  
pp. 2437-2441.e3 ◽  
Author(s):  
Valérie Trendelenburg ◽  
Katharina Blumchen ◽  
Johanna Bellach ◽  
Frank Ahrens ◽  
Armin Gruebl ◽  
...  

2021 ◽  
Vol 42 (2) ◽  
pp. 118-123
Author(s):  
Aikaterini Anagnostou

Food allergies are common and affect 6‐8% of children in the United States; they pose a significant burden on the quality of life of children with allergy and their caregivers due to multiple daily restrictions. Despite the recommended dietary avoidance, reactions tend to occur due to unintentional exposure to the allergenic food trigger. Fear of accidental ingestions with potentially severe reactions, including anaphylaxis and death, creates anxiety in individuals with food allergy. Oral immunotherapy has emerged as a form of active and potentially disease-modifying treatment for common food allergies encountered in childhood. The efficacy of oral immunotherapy is high, with the majority of participants achieving desensitization and, as a result, protection from trace exposures and improved quality of life. The main risk of oral immunotherapy consists of allergic reactions to treatment. In general, rates of allergic reactions and anaphylaxis are reported to be higher in individuals pursuing therapy options, but most subjects who undergo oral immunotherapy will likely experience mild or moderate reactions during treatment. Adverse events tend to reduce in both frequency and number in the maintenance period. The use of immune modulators alongside oral immunotherapy has been suggested, with the aim to improve efficacy and safety, and to facilitate the overall process. It is evident that the landscape of food allergy management is changing and that the future looks brighter, with different options emerging over time. The process of how to choose the appropriate option becomes a discussion between the clinician and the patient, which involves a joint review of the current medical evidence but also the patient's preference for balancing particular attributes of the treatment. By working together, providers and patients will ensure achievement of the best possible outcome for children with food allergies.


Nutrients ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1520 ◽  
Author(s):  
Sarah Lyons ◽  
Anne Dijk ◽  
André Knulst ◽  
Eleonora Alquati ◽  
Thuy-My Le ◽  
...  

In practice, it remains unclear what the best dietary approach is in subjects with pollen-related food allergy (PRFA). Our objective was to evaluate the effect of (1) dietary avoidance advice, (2) oral immunotherapy (OIT), (3) (heat) processing, and (4) consumption of hypoallergenic cultivars on frequency, severity, and eliciting dose of pollen-related food allergic reactions. A systematic search was conducted in PubMed, Embase, and Cochrane. All studies performing an in vivo investigation of one of the four interventions in adults with PRFA were included. Each study was assessed for quality and validity. Available data on frequency, severity, and eliciting dose of allergic reactions were extracted. Ten studies matched the eligibility criteria. No studies were retrieved on dietary avoidance advice. Two studies (N = 92) on apple OIT reported that tolerance was induced in 63% and 81% of subjects. Four studies (total N = 116) focused on heat processing. Heating was found to completely eradicate symptoms in 15–71% of hazelnut allergic and 46% of celery allergic individuals. Four studies (N = 60) comparing low to high allergenic apple cultivars revealed that Santana (and possibly Elise) apples seemed to cause milder reactions than Golden Delicious. In the awareness that overall level of evidence was low, we conclude that OIT, heat processing, and hypoallergenic cultivars may diminish or completely prevent allergic reactions in some but not all subjects with PRFA.


2021 ◽  
Vol 26 (7) ◽  
pp. 669-674
Author(s):  
Sarah S. Smith ◽  
Olga Hilas

Peanut (Arachis hypogaea) Allergen Powder-dnfp (Palforzia, Aimmune™ Therapeutics, Inc.; Brisbane, CA) is the first FDA-approved oral immunotherapy indicated for the mitigation of allergic reactions, including anaphylaxis, in patients with peanut allergy. It may be initiated in individuals 4 to 17 years of age and continued for maintenance in those 4 years of age and older. Initiation and dose titration require a stepwise approach and the supervision of a health care professional. Patients taking Peanut (Arachis hypogaea) Allergen Powder-dnfp should also follow a peanut-avoidant diet. In addition, patients should have an injectable epinephrine product in case of drug-related anaphylaxis. Commonly reported adverse reactions include gastrointestinal, respiratory, and dermatologic manifestations that are frequently associated with allergic reactions.


Allergy ◽  
2020 ◽  
Vol 75 (6) ◽  
pp. 1414-1422 ◽  
Author(s):  
Tomoko Furuta ◽  
Kajiyo Tanaka ◽  
Kazunori Tagami ◽  
Teruaki Matsui ◽  
Shiro Sugiura ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Daniel R. Monaco ◽  
Brandon M. Sie ◽  
Thomas R. Nirschl ◽  
Audrey C. Knight ◽  
Hugh A. Sampson ◽  
...  

AbstractAllergic reactions occur when IgE molecules become crosslinked by antigens such as food proteins. Here we create the ‘AllerScan’ programmable phage display system to characterize the binding specificities of anti-allergen IgG and IgE antibodies in serum against thousands of allergenic proteins from hundreds of organisms at peptide resolution. Using AllerScan, we identify robust anti-wheat IgE reactivities in wheat allergic individuals but not in wheat-sensitized individuals. Meanwhile, a key wheat epitope in alpha purothionin elicits dominant IgE responses among allergic patients, and frequent IgG responses among sensitized and non-allergic patients. A double-blind, placebo-controlled trial shows that alpha purothionin reactivity, among others, is strongly modulated by oral immunotherapy in tolerized individuals. AllerScan may thus serve as a high-throughput platform for unbiased analysis of anti-allergen antibody specificities.


2020 ◽  
Vol 41 (1) ◽  
pp. 5-9 ◽  
Author(s):  
Julie Wang

Background: Peanut allergy affects up to 2% of the general population and carries not only the risk of potentially life-threatening allergic reactions but also negatively impacts day to day life for patients and their families. Advances in knowledge in immunotherapy is providing families with options for proactive treatment. Objective: To examine the available data for oral immunotherapy (OIT) and epicutaneous immunotherapy (EPIT) for peanut allergy. Methods: This review discusses recent studies that evaluated the safety and efficacy of OIT and EPIT to induce desensitization to peanut and identifies factors that should be considered when guiding families in treatment decisions. Results: Results of studies have demonstrated that immunotherapy can raise the threshold of peanut allergen to induce allergic reactions for many patients, thereby potentially reducing the risk for allergic reactions and decreasing the daily burden of peanut allergy. However, adverse reactions, which range from mild to severe, are possible with immunotherapy. Shared decision-making will be important to determine the best approach for peanut allergy management for each individual and his or her family. Conclusion: OIT and EPIT will offer patients and families more options for managing peanut allergies. Recent data from phase III studies on OIT and EPIT as well as real-world data on OIT advance the understanding of the efficacy and safety of these approaches. On-going studies aim to identify biomarkers to enhance patient selection criteria as well as develop additional therapeutic approaches.


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