Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?

Background: Psoriasis is a chronic disorder with increasing new treatments targeting the T-helper cell (Th)-1/Th17 axis. There remains a subset of patients who experience a primary or secondary failure to biologic treatments. Methods: We present ten patients with psoriasis who failed biologic therap...

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Main Authors: Niamh Kearney, Kevin McKenna
Format: Article
Language:English
Published: Taylor & Francis Group 2022-04-01
Series:Journal of Dermatological Treatment
Subjects:
Online Access:http://dx.doi.org/10.1080/09546634.2021.1898526
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author Niamh Kearney
Kevin McKenna
author_facet Niamh Kearney
Kevin McKenna
author_sort Niamh Kearney
collection DOAJ
description Background: Psoriasis is a chronic disorder with increasing new treatments targeting the T-helper cell (Th)-1/Th17 axis. There remains a subset of patients who experience a primary or secondary failure to biologic treatments. Methods: We present ten patients with psoriasis who failed biologic therapy with measurement of serum drug levels and anti-drug antibody levels (ADAs) with review of the current literature. Our objective was to identify demographic factors, disease status, drug level and ADAs which might correlate with primary and secondary failure. Results: There are a number of factors affecting drug levels in patients with psoriasis on biologics including the presence of ADAs, patient adherence to treatment regimes, pharmacogenetics and the pharmacokinetic properties of the drug following subcutaneous injection. Our results demonstrate that biologic failure is related to low serum drug levels subtherapeutic in 80% of our cohort. Primary failure may correlate with the presence of ADAs but not with serum drug levels. All patients were ANA negative and there remains considerable debate on the utility of routine ANA testing. Conclusions: The role of therapeutic drug monitoring in dermatology remains uncertain and requires further study. We aim to promote debate in the dermatology community as to the utility of therapeutic drug monitoring in routine practice.
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spelling doaj.art-c675a4159acd48dd8e16ff693210c7dd2023-09-15T14:28:50ZengTaylor & Francis GroupJournal of Dermatological Treatment0954-66341471-17532022-04-013331676168110.1080/09546634.2021.18985261898526Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?Niamh Kearney0Kevin McKenna1Department of Dermatology, Belfast City HospitalDepartment of Dermatology, Belfast City HospitalBackground: Psoriasis is a chronic disorder with increasing new treatments targeting the T-helper cell (Th)-1/Th17 axis. There remains a subset of patients who experience a primary or secondary failure to biologic treatments. Methods: We present ten patients with psoriasis who failed biologic therapy with measurement of serum drug levels and anti-drug antibody levels (ADAs) with review of the current literature. Our objective was to identify demographic factors, disease status, drug level and ADAs which might correlate with primary and secondary failure. Results: There are a number of factors affecting drug levels in patients with psoriasis on biologics including the presence of ADAs, patient adherence to treatment regimes, pharmacogenetics and the pharmacokinetic properties of the drug following subcutaneous injection. Our results demonstrate that biologic failure is related to low serum drug levels subtherapeutic in 80% of our cohort. Primary failure may correlate with the presence of ADAs but not with serum drug levels. All patients were ANA negative and there remains considerable debate on the utility of routine ANA testing. Conclusions: The role of therapeutic drug monitoring in dermatology remains uncertain and requires further study. We aim to promote debate in the dermatology community as to the utility of therapeutic drug monitoring in routine practice.http://dx.doi.org/10.1080/09546634.2021.1898526psoriasisbiologic drugsanti-drug antibodiesdrug levelsanabiologic failure
spellingShingle Niamh Kearney
Kevin McKenna
Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
Journal of Dermatological Treatment
psoriasis
biologic drugs
anti-drug antibodies
drug levels
ana
biologic failure
title Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
title_full Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
title_fullStr Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
title_full_unstemmed Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
title_short Real world use of biologic drug levels and anti-drug antibodies in patients with psoriasis – does therapeutic drug monitoring have a place in routine clinical practice?
title_sort real world use of biologic drug levels and anti drug antibodies in patients with psoriasis does therapeutic drug monitoring have a place in routine clinical practice
topic psoriasis
biologic drugs
anti-drug antibodies
drug levels
ana
biologic failure
url http://dx.doi.org/10.1080/09546634.2021.1898526
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