Italian national consensus statement on management and pharmacological treatment of phenylketonuria

Abstract Background Phenylketonuria (PKU) is a rare inherited metabolic disorder caused by defects in the phenylalanine-hydroxylase gene (PAH), the enzyme catalyzing the conversion of phenylalanine to tyrosine. PAH impairment causes phenylalanine accumulation in the blood and brain, with a broad spe...

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Main Authors: Alberto Burlina, Giacomo Biasucci, Maria Teresa Carbone, Chiara Cazzorla, Sabrina Paci, Francesca Pochiero, Marco Spada, Albina Tummolo, Juri Zuvadelli, Vincenzo Leuzzi
Format: Article
Language:English
Published: BMC 2021-11-01
Series:Orphanet Journal of Rare Diseases
Subjects:
Online Access:https://doi.org/10.1186/s13023-021-02086-8
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author Alberto Burlina
Giacomo Biasucci
Maria Teresa Carbone
Chiara Cazzorla
Sabrina Paci
Francesca Pochiero
Marco Spada
Albina Tummolo
Juri Zuvadelli
Vincenzo Leuzzi
author_facet Alberto Burlina
Giacomo Biasucci
Maria Teresa Carbone
Chiara Cazzorla
Sabrina Paci
Francesca Pochiero
Marco Spada
Albina Tummolo
Juri Zuvadelli
Vincenzo Leuzzi
author_sort Alberto Burlina
collection DOAJ
description Abstract Background Phenylketonuria (PKU) is a rare inherited metabolic disorder caused by defects in the phenylalanine-hydroxylase gene (PAH), the enzyme catalyzing the conversion of phenylalanine to tyrosine. PAH impairment causes phenylalanine accumulation in the blood and brain, with a broad spectrum of pathophysiological and neurological consequences for patients. Prevalence of disease varies, with peaks in some regions and countries, including Italy. A recent expert survey described the real-life of clinical practice for PKU in Italy, revealing inhomogeneities in disease management, particularly concerning approach to pharmacotherapy with sapropterin hydrochloride, analogous of the natural PAH co-factor, allowing disease control in a subset of patients. Therefore, the purpose of this paper is to continue the work initiated with the expert survey paper, to provide national guidances aiming to harmonize and optimize patient care at a national level. Participants The Consensus Group, convened by 10 Steering Committee members, consisted of a multidisciplinary crowd of 46 experts in the management of PKU in Italy. Consensus process The Steering Committee met in a series of virtual meeting in order to discuss on clinical focuses to be developed and analyzed in guidance statements, on the basis of expert practice based evidence, large systematic literature review previously performed in the expert survey paper, and evidence based consensus published. Statements were re-discussed and refined during consensus conferences in the widest audience of experts, and finally submitted to the whole consensus group for a modified-Delphi voting. Results Seventy three statements, divided in two main clinical areas, PKU management and Pharmacotherapy, achieved large consensus in a multidisciplinary group of expert in different aspects of disease. Importantly, these statements involve guidances for the use of sapropterin dihydrochloride, still not sufficiently implemented in Italy, and a set of good practice to approach the use of novel enzyme replacement treatment pegvaliase. Conclusions This evidence-based consensus provides a minimum set of guidances for disease management to be implemented in all PKU centers. Moreover, these guidances represent the first statement for sapropterin dihydrochloride use, implementation and standardization in Italy, and a guide for approaching pegvaliase treatment at a national level on a consistent basis.
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spelling doaj.art-93b917db1d7147fb934d0c76f2d074942022-12-21T23:37:51ZengBMCOrphanet Journal of Rare Diseases1750-11722021-11-0116111810.1186/s13023-021-02086-8Italian national consensus statement on management and pharmacological treatment of phenylketonuriaAlberto Burlina0Giacomo Biasucci1Maria Teresa Carbone2Chiara Cazzorla3Sabrina Paci4Francesca Pochiero5Marco Spada6Albina Tummolo7Juri Zuvadelli8Vincenzo Leuzzi9Division of Inherited Metabolic Diseases, Reference Center for Expanded Newborn Screening, DIDAS Servizi Di Diagnostica Integrata, University Hospital PadovaMaternal and Child Health Department, Pediatrics and Neonatology Unit, Guglielmo da Saliceto HospitalPediatric Division, Metabolic and Rare Diseases, Santobono Pausilipon HospitalDivision of Inherited Metabolic Diseases, Reference Center for Expanded Newborn Screening, DIDAS Servizi Di Diagnostica Integrata, University Hospital PadovaPaediatric Department, ASST Santi Paolo E Carlo, San Paolo Hospital, University of MilanMetabolic and Muscular Unit, A. Meyer Children’s HospitalDepartment of Pediatrics, Regina Margherita Children’s Hospital, University of TorinoMetabolic Diseases Department, Clinical Genetics and Diabetology, Giovanni XXIII Children’s HospitalPaediatric Department, ASST Santi Paolo E Carlo, San Paolo Hospital, University of MilanDepartment of Human Neuroscience, Unit of Child Neurology and Psychiatry, University La SapienzaAbstract Background Phenylketonuria (PKU) is a rare inherited metabolic disorder caused by defects in the phenylalanine-hydroxylase gene (PAH), the enzyme catalyzing the conversion of phenylalanine to tyrosine. PAH impairment causes phenylalanine accumulation in the blood and brain, with a broad spectrum of pathophysiological and neurological consequences for patients. Prevalence of disease varies, with peaks in some regions and countries, including Italy. A recent expert survey described the real-life of clinical practice for PKU in Italy, revealing inhomogeneities in disease management, particularly concerning approach to pharmacotherapy with sapropterin hydrochloride, analogous of the natural PAH co-factor, allowing disease control in a subset of patients. Therefore, the purpose of this paper is to continue the work initiated with the expert survey paper, to provide national guidances aiming to harmonize and optimize patient care at a national level. Participants The Consensus Group, convened by 10 Steering Committee members, consisted of a multidisciplinary crowd of 46 experts in the management of PKU in Italy. Consensus process The Steering Committee met in a series of virtual meeting in order to discuss on clinical focuses to be developed and analyzed in guidance statements, on the basis of expert practice based evidence, large systematic literature review previously performed in the expert survey paper, and evidence based consensus published. Statements were re-discussed and refined during consensus conferences in the widest audience of experts, and finally submitted to the whole consensus group for a modified-Delphi voting. Results Seventy three statements, divided in two main clinical areas, PKU management and Pharmacotherapy, achieved large consensus in a multidisciplinary group of expert in different aspects of disease. Importantly, these statements involve guidances for the use of sapropterin dihydrochloride, still not sufficiently implemented in Italy, and a set of good practice to approach the use of novel enzyme replacement treatment pegvaliase. Conclusions This evidence-based consensus provides a minimum set of guidances for disease management to be implemented in all PKU centers. Moreover, these guidances represent the first statement for sapropterin dihydrochloride use, implementation and standardization in Italy, and a guide for approaching pegvaliase treatment at a national level on a consistent basis.https://doi.org/10.1186/s13023-021-02086-8PhenylketonuriaItalian consensusTransitionPharmacotherapy tailoringBH4 testSapropterin
spellingShingle Alberto Burlina
Giacomo Biasucci
Maria Teresa Carbone
Chiara Cazzorla
Sabrina Paci
Francesca Pochiero
Marco Spada
Albina Tummolo
Juri Zuvadelli
Vincenzo Leuzzi
Italian national consensus statement on management and pharmacological treatment of phenylketonuria
Orphanet Journal of Rare Diseases
Phenylketonuria
Italian consensus
Transition
Pharmacotherapy tailoring
BH4 test
Sapropterin
title Italian national consensus statement on management and pharmacological treatment of phenylketonuria
title_full Italian national consensus statement on management and pharmacological treatment of phenylketonuria
title_fullStr Italian national consensus statement on management and pharmacological treatment of phenylketonuria
title_full_unstemmed Italian national consensus statement on management and pharmacological treatment of phenylketonuria
title_short Italian national consensus statement on management and pharmacological treatment of phenylketonuria
title_sort italian national consensus statement on management and pharmacological treatment of phenylketonuria
topic Phenylketonuria
Italian consensus
Transition
Pharmacotherapy tailoring
BH4 test
Sapropterin
url https://doi.org/10.1186/s13023-021-02086-8
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