PMID- 38428524 OWN - NLM STAT- Publisher LR - 20240404 IS - 2213-2201 (Electronic) DP - 2024 Feb 28 TI - High Degree of Desensitization After 1 Year of Early-Life Peanut Oral Immunotherapy: Small Children Oral Immunotherapy (SmaChO) Randomized Controlled Trial. LID - S2213-2198(24)00204-6 [pii] LID - 10.1016/j.jaip.2024.02.030 [doi] AB - BACKGROUND: The prevalence of peanut allergy is about 2% and mostly lifelong. Studies of oral immunotherapy (OIT) with peanut (the daily oral intake of an initially low and then increasing dose of peanut) often show problematic side effects, but there are indications of better safety and effect in younger children compared with older children and adults. OBJECTIVE: To determine the safety and effectiveness of peanut OIT with a slow up-dosing strategy and low maintenance dose in children aged 1 to 3 years who were allergic to peanut, through a 1-year interim analysis. METHOD: In a randomized controlled trial (2:1 ratio), 75 children, median age 31 months (interquartile range [IQR], 23-40 months) were assigned to receive peanut OIT (n = 50) or peanut avoidance (n = 25). RESULTS: In the OIT and avoidance groups, 43 of 50 and 20 of 25 children, respectively, performed the 1-year open oral peanut challenge. A cumulative dose of 750 mg peanut protein after 1 year was tolerated by 72% (36 of 50 children) in the OIT group compared with 4% (1 of 25) in the avoidance group (P < .001). Median tolerated cumulative dose was 2,750 mg (IQR, 275-5,000 mg) peanut protein in the OIT group compared with 2.8 mg (IQR, 0.3-27.8 mg) in the avoidance group (P < .001). Of the doses administered at home during the first year of OIT, 1.4% resulted in adverse events and 79% were mild, and three doses of epinephrine were given at home to two individuals. CONCLUSION: In children aged 1 to 3 years, peanut OIT with the combination of slow up-dosing and low maintenance dose seems safe and effective after 1 year. CI - Copyright (c) 2024 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Uhl, Carina AU - Uhl C AD - Department of Clinical Science and Education, Sodersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Sodersjukhuset, Stockholm, Sweden. FAU - Klevebro, Susanna AU - Klevebro S AD - Department of Clinical Science and Education, Sodersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Sodersjukhuset, Stockholm, Sweden. Electronic address: susanna.klevebro@ki.se. FAU - Sverremark-Ekstrom, Eva AU - Sverremark-Ekstrom E AD - Department of Molecular Biosciences, Wenner-Gren Institute, Stockholm University, Stockholm, Sweden. FAU - Tedner, Sandra G AU - Tedner SG AD - Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden. FAU - Brandstrom, Josef AU - Brandstrom J AD - Department of Neonatology, Astrid Lindgrens Childrens Hospital, Karolinska University Hospital, Stockholm, Sweden. FAU - Papageorgiou, Chrystalleni AU - Papageorgiou C AD - Department of Clinical Science and Education, Sodersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Sodersjukhuset, Stockholm, Sweden. FAU - Melen, Erik AU - Melen E AD - Department of Clinical Science and Education, Sodersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Sodersjukhuset, Stockholm, Sweden. FAU - Konradsen, Jon R AU - Konradsen JR AD - Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Pediatric Allergy and Pulmonology Unit, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden. FAU - Nilsson, Caroline AU - Nilsson C AD - Department of Clinical Science and Education, Sodersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Sodersjukhuset, Stockholm, Sweden. FAU - Asarnoj, Anna AU - Asarnoj A AD - Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Pediatric Allergy and Pulmonology Unit, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden. LA - eng PT - Journal Article DEP - 20240228 PL - United States TA - J Allergy Clin Immunol Pract JT - The journal of allergy and clinical immunology. In practice JID - 101597220 SB - IM OTO - NOTNLM OT - Ara h 2 OT - Children OT - Food allergy OT - Oral immunotherapy OT - Oral peanut challenge OT - Peanut allergy OT - Treatment EDAT- 2024/03/02 10:42 MHDA- 2024/03/02 10:42 CRDT- 2024/03/01 19:14 PHST- 2023/12/12 00:00 [received] PHST- 2024/02/02 00:00 [revised] PHST- 2024/02/21 00:00 [accepted] PHST- 2024/03/02 10:42 [pubmed] PHST- 2024/03/02 10:42 [medline] PHST- 2024/03/01 19:14 [entrez] AID - S2213-2198(24)00204-6 [pii] AID - 10.1016/j.jaip.2024.02.030 [doi] PST - aheadofprint SO - J Allergy Clin Immunol Pract. 2024 Feb 28:S2213-2198(24)00204-6. doi: 10.1016/j.jaip.2024.02.030.