Article
Author: Pongracic, Jacqueline A ; Anvari, Sara ; Berger, William E ; Lanser, Bruce J ; Sampson, Hugh A ; Chinthrajah, R Sharon ; Bird, J Andrew ; Bee, Katharine J ; Scurlock, Amy M ; Chong, Hey J ; Rupp, Ned ; Bois, Timothée ; Fineman, Stanley M ; MacGinnitie, Andrew ; Mehta, Hemalini ; Kim, Edwin H ; Wood, Robert ; Shreffler, Wayne G ; Fleischer, David M ; Siri, Dareen ; Schneider, Lynda C ; Sher, Lawrence D ; Oriel, Roxanne C ; Gonzalez-Reyes, Erika ; Yang, William H ; Gagnon, Rémi ; Bégin, Philippe ; Sindher, Sayantani B ; Green, Todd D ; Brown-Whitehorn, Terri F ; Chan, Edmond S ; Petroni, Daniel ; Sussman, Gordon ; Campbell, Dianne E
BACKGROUNDOwing to limited treatment options for peanut allergy, patients remain at risk for allergic reactions due to accidental exposure. Epicutaneous immunotherapy (EPIT) is a novel treatment being investigated for peanut allergy.OBJECTIVEThis study assessed long-term safety of EPIT with VIASKIN peanut patch 250 μg (VP250) via an open-label extension of the REAL Life Use and Safety of EPIT (REALISE) trial.METHODSREALISE was a phase 3 trial in peanut-allergic children aged 4 through 11 years that included a 6-month, randomized, double-blind, placebo-controlled treatment phase, followed by an open-label, single-arm, active treatment period for up to 36 months.RESULTSOf the 392 participants (male 54.8%; median age 7.2 y) who received at least 1 dose of treatment, 77.8% completed the 36-month active treatment. Mean adherence to treatment was high at 96.4%. Most participants (98.7%) experienced at least 1 treatment-emergent adverse event (TEAE); the majority were mild or moderate and decreased in frequency and severity over time. Most participants (94.6%) experienced at least 1 treatment-related TEAE. Local skin reactions were the most common treatment-related TEAE with the incidence decreasing from year 1 (87.8%) to year 3 (19.2%). Serious treatment-related TEAEs were reported in 2 participants. No specific safety signals were identified in the 14 participants enrolled with a history of severe anaphylaxis (Anaphylaxis Staging System grade 3).CONCLUSIONConsistent with previous phase 3 studies, long-term EPIT with VIASKIN peanut patch 250 μg was well tolerated with high adherence in peanut-allergic children aged 4 through 11 years (clinicaltrials.gov; NCT: NCT02916446).