Treatment consistent with idiopathic multicentric Castleman disease guidelines is associated with improved outcomes

© 2023 by The American Society of Hematology. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0), permitting only noncommercial, nonderivative use with attribution. All other rights reserved..

Idiopathic multicentric Castleman disease (iMCD) is a rare hematologic disorder with an unknown etiology. Clinical presentation is heterogeneous, ranging from mild constitutional symptoms with lymphadenopathy to life-threatening multiorgan dysfunction. International, consensus treatment guidelines developed in 2018 relied upon a limited number of clinical trials and small case series; however, to our knowledge, real-world performance of these recommendations has not been subsequently studied. Siltuximab, a monoclonal antibody against interleukin 6 (IL6), is approved for the treatment of iMCD and recommended first-line, and tocilizumab, a monoclonal antibody directed against the IL6 receptor, is recommended when siltuximab is unavailable. Chemotherapy, rituximab, and immunomodulators are recommended as second- and third-line treatments based on limited evidence. Corticosteroid monotherapy is used by clinicians, although not recommended. Here, we draw upon the ACCELERATE Natural History Registry to inventory regimens and evaluate regimen response for 102 expert-confirmed iMCD cases. Siltuximab with/without (w/wo) corticosteroids was associated with a 52% response, whereas corticosteroid monotherapy was associated with a 3% response. Anti-IL6-directed therapy with siltuximab or tocilizumab demonstrated better response and more durability than was observed with rituximab w/wo corticosteroids. Cytotoxic chemotherapy was associated with a 52% response and was predominantly administered in patients characterized by thrombocytopenia, anasarca, fever, renal failure/reticulin fibrosis, and organomegaly. Our results provide evidence in support of current recommendations to administer anti-IL6 as first-line treatment, to administer cytotoxic chemotherapy in patients with severe refractory disease, and to limit corticosteroid monotherapy. Evidence remains limited for effective agents for patients who are refractory to anti-IL6-directed therapy. This trial was registered at www.clinicaltrials.gov as #NCT02817997.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:7

Enthalten in:

Blood advances - 7(2023), 21 vom: 14. Nov., Seite 6652-6664

Sprache:

Englisch

Beteiligte Personen:

Pierson, Sheila K [VerfasserIn]
Lim, Megan S [VerfasserIn]
Srkalovic, Gordan [VerfasserIn]
Brandstadter, Joshua D [VerfasserIn]
Sarmiento Bustamante, Mateo [VerfasserIn]
Shyamsundar, Saishravan [VerfasserIn]
Mango, Natalie [VerfasserIn]
Lavery, Criswell [VerfasserIn]
Austin, Bridget [VerfasserIn]
Alapat, Daisy [VerfasserIn]
Lechowicz, Mary Jo [VerfasserIn]
Bagg, Adam [VerfasserIn]
Li, Hongzhe [VerfasserIn]
Casper, Corey [VerfasserIn]
van Rhee, Frits [VerfasserIn]
Fajgenbaum, David C [VerfasserIn]

Links:

Volltext

Themen:

4F4X42SYQ6
Adrenal Cortex Hormones
Antibodies, Monoclonal
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Rituximab

Anmerkungen:

Date Completed 02.11.2023

Date Revised 10.01.2024

published: Print

ClinicalTrials.gov: NCT02817997

Citation Status MEDLINE

doi:

10.1182/bloodadvances.2023010745

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM361542143