And Consensus-Based Recommendations for the Use of Pegvaliase in Adults with Phenylketonuria
SPECIAL ARTICLE Evidence- and consensus-based recommendations for the use of pegvaliase in adults with phenylketonuria Nicola Longo, MD, PhD 1, David Dimmock, MD2, Harvey Levy, MD3, Krista Viau, PhD, RD3, Heather Bausell, RD, LDN4, Deborah A. Bilder, MD5, Barbara Burton, MD6, Christel Gross, RN7, Hope Northrup, MD8, Fran Rohr, MS, RD9, Stephanie Sacharow, MD3, Amarilis Sanchez-Valle, MD10, Mary Stuy, MD11, Janet Thomas, MD12, Jerry Vockley, MD, PhD13, Roberto Zori, MD14 and Cary O. Harding, MD15 Purpose: Phenylketonuria (PKU) is a rare metabolic disorder that total of 34 guidance statements were included in the modified requires life-long management to reduce phenylalanine (Phe) Delphi voting and consensus was reached on all after two rounds of concentrations within the recommended range. The availability of voting. ™ pegvaliase (PALYNZIQ , an enzyme that can metabolize Phe) as a Conclusion: Here we describe evidence- and consensus-based new therapy necessitates the provision of guidance for its use. recommendations for the use of pegvaliase in adults with PKU. The Methods: A Steering Committee comprising 17 health-care manuscript was evaluated against the Appraisal of Guidelines for professionals with experience in using pegvaliase through the Research and Evaluation (AGREE II) instrument and is intended clinical development program drafted guidance statements during a for use by health-care professionals who will prescribe pegvaliase series of face-to-face meetings. A modified Delphi methodology was and those who will treat patients receiving pegvaliase. used to demonstrate consensus among a wider group of health-care professionals with experience in using pegvaliase. Genetics in Medicine (2019) 21:1851–1867; https://doi.org/10.1038/s41436- Results: Guidance statements were developed for four categories: 018-0403-z (1) treatment goals and considerations prior to initiating therapy, (2) dosing considerations, (3) considerations for dietary manage- Keywords: anaphylaxis management; dietary management; ment, and (4) best approaches to optimize medical management.
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