Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers

Background: While mucosal healing (MH) and transmural healing (TH) predict relevant clinical outcomes in Crohn’s disease (CD), little is known about the real significance and clinical impact of deep remission (DR). Objectives: To better explore the concept of DR, toward a direct correlation between...

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Main Authors: Fabiana Castiglione, Nicola Imperatore, Anna Testa, Roberto de Sire, Olga Maria Nardone, Simona Ricciolino, Imma Di Luna, Marta Patturelli, Guido Daniele Villani, Oriana Olmo, Antonio Rispo
Format: Article
Language:English
Published: SAGE Publishing 2022-07-01
Series:Therapeutic Advances in Gastroenterology
Online Access:https://doi.org/10.1177/17562848221110643
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author Fabiana Castiglione
Nicola Imperatore
Anna Testa
Roberto de Sire
Olga Maria Nardone
Simona Ricciolino
Imma Di Luna
Marta Patturelli
Guido Daniele Villani
Oriana Olmo
Antonio Rispo
author_facet Fabiana Castiglione
Nicola Imperatore
Anna Testa
Roberto de Sire
Olga Maria Nardone
Simona Ricciolino
Imma Di Luna
Marta Patturelli
Guido Daniele Villani
Oriana Olmo
Antonio Rispo
author_sort Fabiana Castiglione
collection DOAJ
description Background: While mucosal healing (MH) and transmural healing (TH) predict relevant clinical outcomes in Crohn’s disease (CD), little is known about the real significance and clinical impact of deep remission (DR). Objectives: To better explore the concept of DR, toward a direct correlation between MH, TH, and biomarkers. Design: Real-world observational longitudinal study to evaluate the rate of clinical remission (CR), MH and TH, and the fecal calprotectin (FC)/C-reactive protein (CRP) levels in all consecutive CD patients on biologics. Methods: A receiver operating characteristic (ROC) curve was constructed to define the best FC and CRP cut-offs associated with MH and TH. Finally, patients achieving CR, MH, and TH, in association with the target FC/CRP values, were considered in DR. Results: Among 118 CD patients, CR, MH, and TH were achieved in 62.7, 44.1, and 32.2%, respectively. After 2 years, the mean FC levels decreased from 494 ± 15.4 μg/g to 260 ± 354.9 μg/g ( p  < 0.01). Using the ROC curve analysis, an FC cut-off value of 94 μg/g was associated with both MH [sensitivity: 94.2%, specificity: 84.8%, positive predictive value (PPV): 83.05%, negative predictive value (NPV): 94.92%, area under the curve (AUC): 0.95] and TH (sensitivity: 92.1%, specificity: 70%, PPV: 64.4%, NPV: 94.9%, AUC: 0.88). CRP < 5 mg/L was associated with both MH (sensitivity: 96.1%, specificity: 62.1%, PPV: 66.7%, NPV: 95.35%, AUC: 0.85) and TH (sensitivity: 97.4%, specificity: 52.5%, PPV: 52%, NPV: 95.35%, AUC: 0.78). When considering CD patients with concomitant CR, MH, and TH associated with an FC < 94 μg/g and CRP < 5 mg/L, this association was found identified in 33 patients (27.9%). Conclusion: An FC < 94 μg/g and a normal CRP are associated with CR, MH, and TH and could be included in the definition of DR in association. So by definition, DR could be achieved in approximately 30% of CD patients during maintenance treatment with biologics.
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spelling doaj.art-245985d2b2bc4e89a45850e7277a17ce2022-12-22T03:04:31ZengSAGE PublishingTherapeutic Advances in Gastroenterology1756-28482022-07-011510.1177/17562848221110643Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkersFabiana CastiglioneNicola ImperatoreAnna TestaRoberto de SireOlga Maria NardoneSimona RicciolinoImma Di LunaMarta PatturelliGuido Daniele VillaniOriana OlmoAntonio RispoBackground: While mucosal healing (MH) and transmural healing (TH) predict relevant clinical outcomes in Crohn’s disease (CD), little is known about the real significance and clinical impact of deep remission (DR). Objectives: To better explore the concept of DR, toward a direct correlation between MH, TH, and biomarkers. Design: Real-world observational longitudinal study to evaluate the rate of clinical remission (CR), MH and TH, and the fecal calprotectin (FC)/C-reactive protein (CRP) levels in all consecutive CD patients on biologics. Methods: A receiver operating characteristic (ROC) curve was constructed to define the best FC and CRP cut-offs associated with MH and TH. Finally, patients achieving CR, MH, and TH, in association with the target FC/CRP values, were considered in DR. Results: Among 118 CD patients, CR, MH, and TH were achieved in 62.7, 44.1, and 32.2%, respectively. After 2 years, the mean FC levels decreased from 494 ± 15.4 μg/g to 260 ± 354.9 μg/g ( p  < 0.01). Using the ROC curve analysis, an FC cut-off value of 94 μg/g was associated with both MH [sensitivity: 94.2%, specificity: 84.8%, positive predictive value (PPV): 83.05%, negative predictive value (NPV): 94.92%, area under the curve (AUC): 0.95] and TH (sensitivity: 92.1%, specificity: 70%, PPV: 64.4%, NPV: 94.9%, AUC: 0.88). CRP < 5 mg/L was associated with both MH (sensitivity: 96.1%, specificity: 62.1%, PPV: 66.7%, NPV: 95.35%, AUC: 0.85) and TH (sensitivity: 97.4%, specificity: 52.5%, PPV: 52%, NPV: 95.35%, AUC: 0.78). When considering CD patients with concomitant CR, MH, and TH associated with an FC < 94 μg/g and CRP < 5 mg/L, this association was found identified in 33 patients (27.9%). Conclusion: An FC < 94 μg/g and a normal CRP are associated with CR, MH, and TH and could be included in the definition of DR in association. So by definition, DR could be achieved in approximately 30% of CD patients during maintenance treatment with biologics.https://doi.org/10.1177/17562848221110643
spellingShingle Fabiana Castiglione
Nicola Imperatore
Anna Testa
Roberto de Sire
Olga Maria Nardone
Simona Ricciolino
Imma Di Luna
Marta Patturelli
Guido Daniele Villani
Oriana Olmo
Antonio Rispo
Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
Therapeutic Advances in Gastroenterology
title Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
title_full Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
title_fullStr Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
title_full_unstemmed Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
title_short Exploring the concept of deep remission in Crohn’s disease: correlation between transmural healing and biomarkers
title_sort exploring the concept of deep remission in crohn s disease correlation between transmural healing and biomarkers
url https://doi.org/10.1177/17562848221110643
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