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Safety of a rush immunotherapy build-up schedule with depigmented polymerized allergen extracts

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Abstract:

Conventional subcutaneous immunotherapy (SCIT) for allergy treatment needs several injections over several weeks to reach the maintenance dose. Shorter up-dosing regimens are desired but limited by the potential of side effects. This study was designed to compare the safety of Depigoid (Laboratorios LETI, Spain)—SCIT 1 day versus 3 weeks up-dosing in patients with Type 1 allergy caused by clinically relevant sensitization against tree pollen, grass pollen, and house-dust mites. A total of 303 patients with confirmed allergic rhinitis/conjunctivitis were included. A rush build-up schedule administering 0.2 mL and then 0.3 mL of the concentrate at day 1 followed by 0.5 mL at day 28 was compared with a conventional 4-week build-up schedule. The number of patients reaching the maintenance phase without systemic reactions or major deviation from treatment schedule were compared. Of the rush 91.8% and in the conventional group 90.9% reached the maintenance phase without dose modification. Neither the proportions of patients with systemic reactions (5.8% rush versus 2% conventional) nor the proportions of patients with local reactions differed significantly between the two regimens (24% rush versus 11% conventional). There was no difference with respect to the applied allergen group. The proposed rush build-up schedule for the immunotherapy treatment with depigmented allergoids without premedication is safe and not inferior to the conventional schedule.

Keywords: Allergoid; allergy; conjunctivitis; depigmented extracts; immunotherapy; rhinitis; safety

Document Type: Research Article

DOI: http://dx.doi.org/10.2500/aap.2010.31.3334

Publication date: May 1, 2010

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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