PMID- 35951014 OWN - NLM STAT- MEDLINE DCOM- 20221011 LR - 20221029 IS - 1530-0366 (Electronic) IS - 1098-3600 (Linking) VI - 24 IP - 10 DP - 2022 Oct TI - Safety and preliminary efficacy on cognitive performance and adaptive functionality of epigallocatechin gallate (EGCG) in children with Down syndrome. A randomized phase Ib clinical trial (PERSEUS study). PG - 2004-2013 LID - S1098-3600(22)00820-6 [pii] LID - 10.1016/j.gim.2022.06.011 [doi] AB - PURPOSE: Although some caregivers are using epigallocatechin gallate (EGCG) off label in hopes of improving cognition in young adults with Down syndrome (DS), nothing is known about its safety, tolerability, and efficacy in the DS pediatric population. We aimed to evaluate safety and tolerability of a dietary supplement containing EGCG and if EGCG improves cognitive and functional performance. METHODS: A total of 73 children with DS (aged 6-12 years) were randomized. Participants received 0.5% EGCG (10 mg/kg daily dose) or placebo for 6 months with 3 months follow up after treatment discontinuation. RESULTS: In total, 72 children were treated and 66 completed the study. A total of 38 participants were included in the EGCG group and 35 in the placebo group. Of 72 treated participants, 62 (86%) had 229 treatment-emergent adverse events (AEs). Of 37 participants in the EGCG group, 13 (35%) had 18 drug-related treatment-emergent AEs and 12 of 35 (34%) from the placebo group had 22 events. In the EGCG group, neither severe AEs nor increase in the incidence of AEs related to safety biomarkers were observed. Cognition and functionality were not improved compared with placebo. Secondary efficacy outcomes in girls point to a need for future work. CONCLUSION: The use of EGCG is safe and well-tolerated in children with DS, but efficacy results do not support its use in this population. CI - Copyright (c) 2022 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Cieuta-Walti, Cecile AU - Cieuta-Walti C AD - Institut Jerome Lejeune, Paris, France; Sherbrooke University, Quebec, Canada. FAU - Cuenca-Royo, Aida AU - Cuenca-Royo A AD - Integrative Pharmacology and Systems Neuroscience research group, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Langohr, Klaus AU - Langohr K AD - Integrative Pharmacology and Systems Neuroscience research group, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain; Department of Statistics and Operations Research, Universitat Politecnica de Catalunya/BarcelonaTECH, Barcelona, Spain. FAU - Rakic, Claire AU - Rakic C AD - Institut Jerome Lejeune, Paris, France. FAU - Lopez-Vilchez, Ma Angeles AU - Lopez-Vilchez MA AD - Pediatric Sevice, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Lirio, Julian AU - Lirio J AD - Social Pediatrics Division, Hospital Infantil Universitario Nino Jesus, Madrid, Spain. FAU - Gonzalez-Lamuno Leguina, Domingo AU - Gonzalez-Lamuno Leguina D AD - Division of Pediatrics, Hospital Universitario Marques de Valdecilla - Universidad de Cantabria - Instituto de Investigacion Valdecilla (IDIVAL), Santander, Cantabria, Spain. FAU - Gonzalez, Teresa Bermejo AU - Gonzalez TB AD - Instituto Hispalense de Pediatria, Sevilla, Spain. FAU - Garcia, Jordi Garcia AU - Garcia JG AD - Pediatric Sevice, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Roure, Maria Rimblas AU - Roure MR AD - Division of Pediatrics, Hospital Universitari Sant Joan de Reus, Tarragona, Spain. FAU - Aldea-Perona, Ana AU - Aldea-Perona A AD - Clinical Research Unit, IMIM- Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Forcano, Laura AU - Forcano L AD - Integrative Pharmacology and Systems Neuroscience research group, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Gomis-Gonzalez, Maria AU - Gomis-Gonzalez M AD - Integrative Pharmacology and Systems Neuroscience research group, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain. FAU - Ces, Sebastia Videla AU - Ces SV AD - Clinical Research Support Unit [HUB.IDIBELL], Clinical Pharmacology Department, Bellvitge University Hospital, Barcelona, Spain; Pharmacology Unit, Department of Pathology and Experimental Therapeutics, School of Medicine and Health Sciences, IDIBELL, University of Barcelona, Barcelona, Spain. FAU - Lacaille, Florence AU - Lacaille F AD - Service de Gastro-enterologie-Hepatologie-Nutrition Pediatriques, Hopital Necker-Enfants Malades Paris, Paris, France. FAU - Ravel, Aime AU - Ravel A AD - Institut Jerome Lejeune, Paris, France. FAU - Mircher, Clotilde AU - Mircher C AD - Institut Jerome Lejeune, Paris, France. FAU - Walti, Herve AU - Walti H AD - Institut Jerome Lejeune, Paris, France. FAU - Janel, Nathalie AU - Janel N AD - Unite de Biologie Fonctionnelle et Adaptative (BFA), Laboratoire Processus degeneratifs, Stress et Vieillissement, UMR 8251, CNRS, Universite de Paris, Paris, France. FAU - Dairou, Julien AU - Dairou J AD - UMR 8601 CNRS, Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, Universite de Paris, Paris, France. FAU - Levy, Marilyne AU - Levy M AD - Centre de Reference Malformations Cardiaques Congenitales Complexes, M3C-Necker, Hopital Universitaire Necker-Enfants Malades, APHP, Universite de Paris, Paris, France. FAU - Durand, Sophie AU - Durand S AD - Institut Jerome Lejeune, Paris, France. FAU - Dierssen, Mara AU - Dierssen M AD - Cellular & Systems Neurobiology, Systems Biology Program. Center for Genomic Regulation, Barcelona, Spain. FAU - Sacco, Silvia AU - Sacco S AD - Institut Jerome Lejeune, Paris, France. FAU - Fornell, Rafael de la Torre AU - Fornell RT AD - Sherbrooke University, Quebec, Canada; Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona, Spain. Electronic address: rtorre@imim.es. CN - PERSEUS Study Group LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial DEP - 20220811 PL - United States TA - Genet Med JT - Genetics in medicine : official journal of the American College of Medical Genetics JID - 9815831 RN - 8R1V1STN48 (Catechin) RN - BQM438CTEL (epigallocatechin gallate) SB - IM MH - *Catechin/adverse effects/analogs & derivatives MH - Child MH - Cognition MH - Dietary Supplements MH - Double-Blind Method MH - *Down Syndrome/drug therapy MH - Female MH - Humans MH - Male OTO - NOTNLM OT - Children OT - Cognition OT - Down syndrome OT - EGCG OT - Safety COIS- Conflict of Interest The authors declare no conflicts of interest. FIR - Guerrico, Ion Alvarez IR - Guerrico IA FIR - Goday, Albert IR - Goday A FIR - Llop, Cristina IR - Llop C FIR - Mateus, Julian IR - Mateus J FIR - Matilla, Iris IR - Matilla I FIR - Esther IR - Esther FIR - Menoyo IR - Menoyo FIR - Hernandez-Ligero, Lorena IR - Hernandez-Ligero L FIR - Perez, Marta IR - Perez M FIR - Pizarro, Neus IR - Pizarro N FIR - Principe, Alessandro IR - Principe A FIR - Cortesi, Anna IR - Cortesi A FIR - Gomez, Alba IR - Gomez A FIR - Paredes, Noelia IR - Paredes N FIR - Gomez, Cristina IR - Gomez C FIR - Graell, Montserrat IR - Graell M FIR - Lopez, Pilar IR - Lopez P FIR - Lozano, Rosario IR - Lozano R FIR - Medrano, Constancio IR - Medrano C FIR - Andrade-Navarro, Maria Teresa IR - Andrade-Navarro MT FIR - Daza, Gema IR - Daza G FIR - Garcia, Sandra IR - Garcia S FIR - Gayan, Ma Luisa IR - Gayan ML FIR - Guerra-Colorado, Cristina IR - Guerra-Colorado C FIR - Luna, Beatriz IR - Luna B FIR - Maya, Enriqueta IR - Maya E FIR - Millan, Delia IR - Millan D FIR - Reina, Macarena IR - Reina M FIR - Amigo, Maria Teresa IR - Amigo MT FIR - Fernandez, Jose Luis IR - Fernandez JL FIR - Garcia-Martinez, Maria IR - Garcia-Martinez M FIR - Perez-Poyato, Maria Del Socorro IR - Perez-Poyato MDS FIR - Pozueta, Ana IR - Pozueta A FIR - Tato, Emma IR - Tato E FIR - Viadero, Maria Teresa IR - Viadero MT FIR - Akkaya, Magnolia IR - Akkaya M FIR - Falquero, Segolene IR - Falquero S FIR - Gambarini, Alicia IR - Gambarini A FIR - Akkaya, Magnolia IR - Akkaya M FIR - Falquero, Segolene IR - Falquero S FIR - Gambarini, Alicia IR - Gambarini A EDAT- 2022/08/12 06:00 MHDA- 2022/10/12 06:00 CRDT- 2022/08/11 11:03 PHST- 2022/03/14 00:00 [received] PHST- 2022/06/27 00:00 [revised] PHST- 2022/06/29 00:00 [accepted] PHST- 2022/08/12 06:00 [pubmed] PHST- 2022/10/12 06:00 [medline] PHST- 2022/08/11 11:03 [entrez] AID - S1098-3600(22)00820-6 [pii] AID - 10.1016/j.gim.2022.06.011 [doi] PST - ppublish SO - Genet Med. 2022 Oct;24(10):2004-2013. doi: 10.1016/j.gim.2022.06.011. Epub 2022 Aug 11.