Publications by authors named "Greenhawt M"

Background: The evaluation and management of insect sting allergy is a complex core competency taught in Allergy and Immunology fellowship programs. It is unclear if current training on insect allergy is sufficient to meet the needs of the field, and what training barriers exist.

Objective: To investigate the extent of training on stinging insect allergy, and factors currently impacting stinging insect allergy clinical practice through a pilot needs-assessment survey.

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The current FDA paradigm may not fully capture important patient-centered outcomes or measure a primary outcome that is truly meaningful to patients. Patient reported outcome measures (PROMs) are standardized tools measuring the patient's experience in food allergy clinical trials, which can help support shared decision-making (SDM) and further our understanding of treatment impact. Food allergy PROMs include quality of life (QoL), health state utility (HSU), severity, and self-efficacy measures.

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Background: Egg oral immunotherapy (OIT) can induce desensitization or remission of egg allergy in children.

Objective: To determine the cost-effectiveness of OIT for raw egg allergy in school-age children compared with egg avoidance, and the most cost-effective age at which to commence treatment.

Methods: A decision-analytic Markov model estimated the health and cost outcomes of 1,000 children aged 4 years with egg allergy, comparing different ages of OIT commencement (ages 4-12, inclusive) versus ongoing egg avoidance.

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Background: Noninjectable epinephrine to treat allergic reactions addresses an unmet need. Intranasal epinephrine is approved and a sublingual form is under development. Inhaled epinephrine is poorly studied for anaphylaxis.

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Omalizumab was recently approved by the US Food and Drug Administration for treatment of any single food allergy or multiple food allergies in children aged 1 year and older and adults. There is currently no formal guidance regarding recommended best practices for omalizumab use in food allergy, including patient selection, anticipated goals and outcomes of therapy, procedure for monitoring patients who elect to start omalizumab therapy, and ways in which omalizumab can be incorporated into the landscape of food allergy management and daily clinical practice. This work group report was developed by the food allergy therapies subcommittee of the Adverse Reactions to Foods Committee within the American Academy of Allergy, Asthma & Immunology.

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Article Synopsis
  • An epinephrine nasal spray (ENS) is being developed as an alternative to the standard intramuscular (IM) epinephrine for treating anaphylaxis.
  • A study compared the pharmacokinetic (how the drug is processed in the body) and pharmacodynamic (effects on the body) profiles of a 13.2 mg ENS with a 0.3 mg IM autoinjector among healthy adults.
  • Results showed that ENS produced higher and more sustained plasma epinephrine concentrations compared to the IM autoinjector, with similar impacts on heart rate and blood pressure across both treatments.
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  • Limited decision-support tools are available for shared decision-making (SDM) about food oral immunotherapy (OIT), prompting the creation of a new pediatric decision-aid tool covering various foods, forms, and ages.
  • The tool was developed through an iterative process involving expert feedback and assessment measures, resulting in a user-friendly, 4-page aid that helps caregivers understand therapy options, risks, and benefits.
  • Evaluation showed that the decision-aid was well-received by 135 caregivers, reporting high confidence in their choices and low uncertainty, indicating its effectiveness in supporting SDM for OIT initiation.
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Food allergy prevention has undergone a significant transformation over the past 3 decades. This review provides an overview of the evolution of food allergy prevention, highlighting changes in guidance, cost-effectiveness of prevention, the role of shared decision-making, and the emergence of oral immunotherapy for those in whom primary prevention fails. Changes to food allergy prevention over recent decades can be conceptualized into five epochs, which have followed a general trend of loosening restrictions on the allergen introduction timeline.

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Background: Consumption of ultra-processed foods [UPFs] may be associated with negative health outcomes. Limited data exist regarding the potential role of UPFs in the occurrence of allergic diseases. The underlying mechanisms underpinning any such associations are also poorly elucidated.

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Purpose Of Review: To discuss if all patients who use self-injectable epinephrine outside the hospital setting require immediate emergency care.

Recent Findings: Prior to 2023, anaphylaxis management guidance universally recommended that patients who use self-injectable epinephrine outside of the hospital or clinic setting immediately activate emergency medical services and seek further care. Additional food-induced anaphylaxis management recommendations specified that all patients always carry 2 auto-injector devices and give a second dose of epinephrine if there was not immediate response within 5 min of injection.

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Article Synopsis
  • Food allergy management has shifted from avoiding allergens to active treatments, highlighted by the approval of peanut immunotherapy in 2020 and the recent approval of omalizumab in 2024 for IgE-mediated food allergies.
  • Clinicians now have multiple treatment options and must understand the benefits, risks, and optimal use of these therapies to effectively manage patients.
  • A comprehensive review and expert opinion is provided to help clinicians incorporate omalizumab and other therapies into patient care through shared decision-making.
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Oral immunotherapy (OIT) is an office-based procedure that offers potential treatment of immunoglobulin E mediated food allergy. OIT has multiple benefits, e.g.

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Background: Omalizumab is an anti-IgE therapy newly approved by the Food and Drug Administration for allergen agnostic treatment of single or multiple food allergies in patients aged 1 year or older.

Objective: Evaluate the cost-effectiveness of omalizumab as a food allergy treatment.

Methods: We evaluated health and economic outcomes in Markov cohorts of simulated food allergic infants randomized to receive omalizumab using a 15-year horizon.

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Shared decision-making (SDM) is an increasingly implemented patient-centered approach to navigating patient preferences regarding diagnostic and treatment options and supported decision-making. This therapeutic approach prioritizes the patient's perspectives, considering current medical evidence to provide a balanced approach to clinical scenarios. In light of numerous recent guideline recommendations that are conditional in nature and are clinical scenarios defined by preference-sensitive care options, there is a tremendous opportunity for SDM and validated decision aids.

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Article Synopsis
  • - Dupilumab is a monoclonal antibody used to treat conditions like asthma and atopic dermatitis, but its use in clinical trials led to recommendations against live vaccines due to safety concerns.
  • - Recent systematic reviews and an expert panel concluded that live vaccines are generally safe for patients on dupilumab and that the effectiveness of vaccines is not compromised.
  • - It is advisable for clinicians and patients to engage in shared decision-making regarding the administration of vaccines to those receiving dupilumab.
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