PMID- 30225844 OWN - NLM STAT- MEDLINE DCOM- 20200313 LR - 20200313 IS - 1398-9995 (Electronic) IS - 0105-4538 (Linking) VI - 74 IP - 2 DP - 2019 Feb TI - Feasibility of desensitizing children highly allergic to peanut by high-dose oral immunotherapy. PG - 337-348 LID - 10.1111/all.13604 [doi] AB - BACKGROUND: There are limited data on the feasibility, efficacy and safety of high-dose oral immunotherapy (OIT) in children highly allergic to peanuts. OBJECTIVE: In children highly allergic to peanut, we primarily aimed to determine the feasibility of reaching the maximum maintenance dose (MMD) of 5000 mg peanut protein or, alternatively, a lower individual maintenance dose (IMD), by OIT up-dosing. Secondarily, we aimed to identify adverse events (AEs) and determine factors associated with reaching a maintenance dose. METHODS: The TAKE-AWAY peanut OIT trial enrolled 77 children 5-15 years old, with a positive oral peanut challenge. Fifty-seven were randomized to OIT with biweekly dose step-up until reaching MMD or IMD and 20 to observation only. Demographic and biological characteristics, AEs, medication and protocol deviations were explored for associations with reaching maintenance dose. RESULTS: All children had anaphylaxis defined by objective symptoms in minimum two organ systems during baseline challenge. The MMD was reached by 21.1%, while 54.4% reached an IMD of median (minimum, maximum) 2700 (250, 4000) mg peanut protein, whereas 24.5% discontinued OIT. During up-dosing, 19.4% experienced anaphylaxis. Not reaching the MMD was caused by distaste for peanuts (66.7%), unacceptable AEs (26.7%) and social reasons (6.7%). Increased peanut s-IgG(4) /s-IgE ratio (OR [95% CI]: 1.02 [1.00, 1.04]) was associated with reaching MMD. CONCLUSION: Although 75.5% of children with peanut anaphylaxis reached a maintenance dose of 0.25-5 g, only 21.1% reached the MMD. Distaste for peanuts and AEs, including high risk of anaphylaxis, limited the feasibility of reaching MMD. CI - (c) 2018 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd. FAU - Reier-Nilsen, Tonje AU - Reier-Nilsen T AUID- ORCID: 0000-0001-8184-0607 AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. AD - Institute of Clinical Medicine, University of Oslo, Oslo, Norway. FAU - Michelsen, Merethe Melbye AU - Michelsen MM AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. AD - Institute of Clinical Medicine, University of Oslo, Oslo, Norway. FAU - Lodrup Carlsen, Karin C AU - Lodrup Carlsen KC AUID- ORCID: 0000-0002-9257-1198 AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. AD - Institute of Clinical Medicine, University of Oslo, Oslo, Norway. FAU - Carlsen, Kai-Hakon AU - Carlsen KH AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. AD - Institute of Clinical Medicine, University of Oslo, Oslo, Norway. FAU - Mowinckel, Petter AU - Mowinckel P AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. FAU - Nygaard, Unni C AU - Nygaard UC AD - Norwegian Institute of Public Health, Division for Infection Control and Environmental Health, Oslo, Norway. FAU - Namork, Ellen AU - Namork E AD - Norwegian Institute of Public Health, Division for Infection Control and Environmental Health, Oslo, Norway. FAU - Borres, Magnus P AU - Borres MP AD - Thermo Fisher Scientific, Uppsala, Sweden. AD - Institute of Maternal & Child Health, Uppsala University, Uppsala, Sweden. FAU - Haland, Geir AU - Haland G AD - Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway. AD - Institute of Clinical Medicine, University of Oslo, Oslo, Norway. LA - eng SI - ClinicalTrials.gov/NCT02457416 GR - Extra Foundation/International GR - Kloster Foundation/International GR - South-Eastern Norway Regional Health Authority/International GR - Norwegian Asthma and Allergy Association/International PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20181008 PL - Denmark TA - Allergy JT - Allergy JID - 7804028 RN - 0 (Allergens) SB - IM CIN - Allergy. 2019 Feb;74(2):220-222. PMID: 30347127 MH - Administration, Oral MH - Adolescent MH - Allergens/administration & dosage/*immunology MH - Arachis/*adverse effects MH - Child MH - Child, Preschool MH - Comorbidity MH - *Desensitization, Immunologic/adverse effects/methods MH - Female MH - Humans MH - Male MH - Peanut Hypersensitivity/diagnosis/*immunology/*therapy MH - Respiratory Function Tests MH - Risk Factors MH - Skin Tests MH - Treatment Outcome OTO - NOTNLM OT - adverse events OT - desensitization OT - feasibility OT - oral immunotherapy OT - peanut allergy EDAT- 2018/09/19 06:00 MHDA- 2020/03/14 06:00 CRDT- 2018/09/19 06:00 PHST- 2018/01/19 00:00 [received] PHST- 2018/07/30 00:00 [revised] PHST- 2018/08/12 00:00 [accepted] PHST- 2018/09/19 06:00 [pubmed] PHST- 2020/03/14 06:00 [medline] PHST- 2018/09/19 06:00 [entrez] AID - 10.1111/all.13604 [doi] PST - ppublish SO - Allergy. 2019 Feb;74(2):337-348. doi: 10.1111/all.13604. Epub 2018 Oct 8.