Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort

ObjectivesThe study aims to evaluate the applicability of the D2T psoriatic arthritis (PsA) definition, adapted from rheumatoid arthritis, within a single-center observational cohort of PsA patients treated with b/tsDMARDs. In addition, we aimed to establish a numerical index defining D2T-PsA based...

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Main Authors: Ennio Giulio Favalli, Giacomo Biganzoli, Gilberto Cincinelli, Matteo Ferrito, Ester Luconi, Maria Manara, Martina Biggioggero, Patrizia Boracchi, Roberto Caporali
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-12-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2024.1509082/full
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author Ennio Giulio Favalli
Ennio Giulio Favalli
Giacomo Biganzoli
Gilberto Cincinelli
Gilberto Cincinelli
Matteo Ferrito
Matteo Ferrito
Ester Luconi
Maria Manara
Martina Biggioggero
Patrizia Boracchi
Patrizia Boracchi
Roberto Caporali
Roberto Caporali
author_facet Ennio Giulio Favalli
Ennio Giulio Favalli
Giacomo Biganzoli
Gilberto Cincinelli
Gilberto Cincinelli
Matteo Ferrito
Matteo Ferrito
Ester Luconi
Maria Manara
Martina Biggioggero
Patrizia Boracchi
Patrizia Boracchi
Roberto Caporali
Roberto Caporali
author_sort Ennio Giulio Favalli
collection DOAJ
description ObjectivesThe study aims to evaluate the applicability of the D2T psoriatic arthritis (PsA) definition, adapted from rheumatoid arthritis, within a single-center observational cohort of PsA patients treated with b/tsDMARDs. In addition, we aimed to establish a numerical index defining D2T-PsA based on the ratio of observed to expected failed b/tsDMARDs and to develop a predictive model identifying features associated with the D2T condition.MethodsThe study included 267 consecutive adult PsA patients receiving b/tsDMARDs, collecting demographic, clinical, and clinimetric data. The prevalence of D2T PsA patients was assessed using a proposed definition. We then developed a predictive model to assess treatment difficulty, utilizing PsA-normalized failed b/tsDMARDs. A generalized linear model was applied to identify clinical and demographic features associated with D2T PsA, employing a bagging procedure for robust variable selection, followed by univariate and multivariable analyses.ResultsAmong the 267 patients, only 8 of them (2.9%) met the proposed D2T PsA criteria. In a subset of 177 patients analyzed using the predictive model, 17.2% of them demonstrated higher treatment difficulty. Univariate analysis revealed associations between treatment difficulty and female sex, psoriasis pattern, fibromyalgia, and steroid therapy. Multivariate analysis confirmed significant associations between fibromyalgia, nail and pustular psoriasis, and steroid use.ConclusionAccording to the predictive model, the proposed D2T PsA definition identified a small subset of patients with increased treatment difficulty. These findings highlight the need for refining the criteria to better define D2T PsA patients, providing valuable insights into managing complex treatment challenges in PsA.
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spelling doaj-art-72c3a494eaad437eb0e1f655d2d3a1192024-12-16T04:19:01ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2024-12-011110.3389/fmed.2024.15090821509082Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohortEnnio Giulio Favalli0Ennio Giulio Favalli1Giacomo Biganzoli2Gilberto Cincinelli3Gilberto Cincinelli4Matteo Ferrito5Matteo Ferrito6Ester Luconi7Maria Manara8Martina Biggioggero9Patrizia Boracchi10Patrizia Boracchi11Roberto Caporali12Roberto Caporali13Department of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Clinical Sciences and Community Health, University of Milan, Milan, ItalyDepartment of Biomedical and Clinical Sciences, University of Milan, Milan, ItalyDepartment of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Clinical Sciences and Community Health, University of Milan, Milan, ItalyDepartment of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Clinical Sciences and Community Health, University of Milan, Milan, ItalyDepartment of Biomedical and Clinical Sciences, University of Milan, Milan, ItalyDepartment of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Biomedical and Clinical Sciences, University of Milan, Milan, ItalyData Science and Research Center (DSRC), University of Milan, Milan, ItalyDepartment of Rheumatology and Medical Sciences, ASST Gaetano Pini-CTO Institute, Milan, ItalyDepartment of Clinical Sciences and Community Health, University of Milan, Milan, ItalyObjectivesThe study aims to evaluate the applicability of the D2T psoriatic arthritis (PsA) definition, adapted from rheumatoid arthritis, within a single-center observational cohort of PsA patients treated with b/tsDMARDs. In addition, we aimed to establish a numerical index defining D2T-PsA based on the ratio of observed to expected failed b/tsDMARDs and to develop a predictive model identifying features associated with the D2T condition.MethodsThe study included 267 consecutive adult PsA patients receiving b/tsDMARDs, collecting demographic, clinical, and clinimetric data. The prevalence of D2T PsA patients was assessed using a proposed definition. We then developed a predictive model to assess treatment difficulty, utilizing PsA-normalized failed b/tsDMARDs. A generalized linear model was applied to identify clinical and demographic features associated with D2T PsA, employing a bagging procedure for robust variable selection, followed by univariate and multivariable analyses.ResultsAmong the 267 patients, only 8 of them (2.9%) met the proposed D2T PsA criteria. In a subset of 177 patients analyzed using the predictive model, 17.2% of them demonstrated higher treatment difficulty. Univariate analysis revealed associations between treatment difficulty and female sex, psoriasis pattern, fibromyalgia, and steroid therapy. Multivariate analysis confirmed significant associations between fibromyalgia, nail and pustular psoriasis, and steroid use.ConclusionAccording to the predictive model, the proposed D2T PsA definition identified a small subset of patients with increased treatment difficulty. These findings highlight the need for refining the criteria to better define D2T PsA patients, providing valuable insights into managing complex treatment challenges in PsA.https://www.frontiersin.org/articles/10.3389/fmed.2024.1509082/fullpsoriatic arthritisdifficult-to-treatb/tsDMARDspredictive modeldrug resistance
spellingShingle Ennio Giulio Favalli
Ennio Giulio Favalli
Giacomo Biganzoli
Gilberto Cincinelli
Gilberto Cincinelli
Matteo Ferrito
Matteo Ferrito
Ester Luconi
Maria Manara
Martina Biggioggero
Patrizia Boracchi
Patrizia Boracchi
Roberto Caporali
Roberto Caporali
Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
Frontiers in Medicine
psoriatic arthritis
difficult-to-treat
b/tsDMARDs
predictive model
drug resistance
title Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
title_full Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
title_fullStr Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
title_full_unstemmed Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
title_short Difficult-to-treat psoriatic arthritis: refining the definition using a statistical model in a real-life cohort
title_sort difficult to treat psoriatic arthritis refining the definition using a statistical model in a real life cohort
topic psoriatic arthritis
difficult-to-treat
b/tsDMARDs
predictive model
drug resistance
url https://www.frontiersin.org/articles/10.3389/fmed.2024.1509082/full
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