Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria

Introduction: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, non-malignant hematologic disease characterized by complement-mediated hemolysis (with or without hemoglobinuria), fatigue, increased susceptibility to thrombosis, and bone marrow dysfunction. The development of complement...

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Main Authors: David Dingli, Carlos De Castro III, Jamie Koprivnikar, Austin Kulasekararaj, Jaroslaw Maciejewski, Brian Mulherin, Jens Panse, Vinod Pullarkat, Alexander Röth, Jamile Shammo, Louis Terriou, Ilene Weitz, Irina Yermilov, Sarah Gibbs, Michael Broder, David Beenhouwer, David Kuter
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Hematology
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Online Access:https://www.tandfonline.com/doi/10.1080/16078454.2024.2329030
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author David Dingli
Carlos De Castro III
Jamie Koprivnikar
Austin Kulasekararaj
Jaroslaw Maciejewski
Brian Mulherin
Jens Panse
Vinod Pullarkat
Alexander Röth
Jamile Shammo
Louis Terriou
Ilene Weitz
Irina Yermilov
Sarah Gibbs
Michael Broder
David Beenhouwer
David Kuter
author_facet David Dingli
Carlos De Castro III
Jamie Koprivnikar
Austin Kulasekararaj
Jaroslaw Maciejewski
Brian Mulherin
Jens Panse
Vinod Pullarkat
Alexander Röth
Jamile Shammo
Louis Terriou
Ilene Weitz
Irina Yermilov
Sarah Gibbs
Michael Broder
David Beenhouwer
David Kuter
author_sort David Dingli
collection DOAJ
description Introduction: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, non-malignant hematologic disease characterized by complement-mediated hemolysis (with or without hemoglobinuria), fatigue, increased susceptibility to thrombosis, and bone marrow dysfunction. The development of complement inhibitors has transformed outcomes for patients with PNH, but patients may still experience pharmacodynamic breakthrough hemolysis (BTH), which can be caused by exposure to a complement amplifying condition (CAC), such as vaccination, infection, or surgery.Materials and methods: A 13-member expert panel used a validated methodology (a RAND/UCLA modified Delphi panel) to develop consensus on how to classify pharmacodynamic BTH in patients with complement-inhibitor treated PNH. Physicians reviewed literature, rated the appropriateness of over 400 scenarios, and discussed the ratings at an in-person meeting.Results: After the meeting, the panel agreed on 77% of scenarios. Here, we present the group’s agreed-upon recommendations on how to manage BTH caused by a CAC, as well as provide a severity classification system for BTH and strategies to mitigate risk of BTH in special circumstances (e.g. vaccination, planned or unplanned surgery, and pregnancy).Discussion: In general, as severity of BTH increased, experts agreed more interventions to manage the BTH were appropriate. These recommendations are based on clinical experience and opinion. Without clear data from randomized trials to guide the management of BTH, expert opinion can be useful to support patient care.
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spelling doaj-art-9910639b99bf41af8dfaccc4685e89c02025-08-20T01:59:09ZengTaylor & Francis GroupHematology1607-84542024-12-0129110.1080/16078454.2024.2329030Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuriaDavid Dingli0Carlos De Castro III1Jamie Koprivnikar2Austin Kulasekararaj3Jaroslaw Maciejewski4Brian Mulherin5Jens Panse6Vinod Pullarkat7Alexander Röth8Jamile Shammo9Louis Terriou10Ilene Weitz11Irina Yermilov12Sarah Gibbs13Michael Broder14David Beenhouwer15David Kuter16Mayo Clinic, Rochester, MN, USADuke University Medical Center, Duke Cancer Institute, Durham, NC, USAHackensack University Medical Center, Hackensack, NJ, USAKing’s College Hospital and King’s College London, London, EnglandCleveland Clinic, Cleveland, OH, USAHematology Oncology of Indiana, PC, American Oncology Network, Indianapolis, IN, USARWTH Aachen University Hospital, Aachen, Germany + Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, GermanyCity of Hope, Duarte, CA, USAWest German Cancer Center, University Hospital Essen, University of Duisburg-Essen, Essen, GermanyNorthwestern University Feinberg School of Medicine, Chicago, IL, USAUniversity Hospital of Lille, Lille, FranceKeck School of Medicine at the University of Southern California, Los Angeles, CA, USAPHAR, Beverly Hills, CA, USAPHAR, Beverly Hills, CA, USAPHAR, Beverly Hills, CA, USAPHAR, Beverly Hills, CA, USAMassachusetts General Hospital, Boston, MA, USAIntroduction: Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, non-malignant hematologic disease characterized by complement-mediated hemolysis (with or without hemoglobinuria), fatigue, increased susceptibility to thrombosis, and bone marrow dysfunction. The development of complement inhibitors has transformed outcomes for patients with PNH, but patients may still experience pharmacodynamic breakthrough hemolysis (BTH), which can be caused by exposure to a complement amplifying condition (CAC), such as vaccination, infection, or surgery.Materials and methods: A 13-member expert panel used a validated methodology (a RAND/UCLA modified Delphi panel) to develop consensus on how to classify pharmacodynamic BTH in patients with complement-inhibitor treated PNH. Physicians reviewed literature, rated the appropriateness of over 400 scenarios, and discussed the ratings at an in-person meeting.Results: After the meeting, the panel agreed on 77% of scenarios. Here, we present the group’s agreed-upon recommendations on how to manage BTH caused by a CAC, as well as provide a severity classification system for BTH and strategies to mitigate risk of BTH in special circumstances (e.g. vaccination, planned or unplanned surgery, and pregnancy).Discussion: In general, as severity of BTH increased, experts agreed more interventions to manage the BTH were appropriate. These recommendations are based on clinical experience and opinion. Without clear data from randomized trials to guide the management of BTH, expert opinion can be useful to support patient care.https://www.tandfonline.com/doi/10.1080/16078454.2024.2329030(Need 8): ConsensusAplastic anemiaBone marrow failureCoagulation disordersComplement inhibitorsHemolysis
spellingShingle David Dingli
Carlos De Castro III
Jamie Koprivnikar
Austin Kulasekararaj
Jaroslaw Maciejewski
Brian Mulherin
Jens Panse
Vinod Pullarkat
Alexander Röth
Jamile Shammo
Louis Terriou
Ilene Weitz
Irina Yermilov
Sarah Gibbs
Michael Broder
David Beenhouwer
David Kuter
Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
Hematology
(Need 8): Consensus
Aplastic anemia
Bone marrow failure
Coagulation disorders
Complement inhibitors
Hemolysis
title Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
title_full Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
title_fullStr Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
title_full_unstemmed Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
title_short Expert consensus on the management of pharmacodynamic breakthrough-hemolysis in treated paroxysmal nocturnal hemoglobinuria
title_sort expert consensus on the management of pharmacodynamic breakthrough hemolysis in treated paroxysmal nocturnal hemoglobinuria
topic (Need 8): Consensus
Aplastic anemia
Bone marrow failure
Coagulation disorders
Complement inhibitors
Hemolysis
url https://www.tandfonline.com/doi/10.1080/16078454.2024.2329030
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