Association between infliximab concentrations and clinical response in psoriasis: a prospective cohort study.
J Dermatolog Treat
; 32(2): 180-187, 2021 Mar.
Article
em En
| MEDLINE
| ID: mdl-31696747
ABSTRACT
BACKGROUND:
Infliximab (IFX) trough concentrations (Cmin) have been linked to treatment efficacy in psoriatic patients. Inter-individual IFX Cmin variability and factors influencing IFX pharmacokinetics could explain differences in treatment response.OBJECTIVE:
To evaluate the association between IFX Cmin and clinical outcomes in psoriatic patients.METHODS:
Prospective study of 33 patients with moderate to severe psoriasis receiving IFX at Bellvitge University Hospital, between October 2013 and November 2016. IFX Cmin and antibodies toward infliximab (ATI) were measured.RESULTS:
We collected 155 IFX Cmin and ATI values (mean age, 46 (14) years; 11 (33.3%) women). Mean IFX Cmin was 2.5 (2.4) mg/L and ATIs were detected in six patients, resulting in undetectable IFX Cmin. IFX Cmin was significantly associated with ATI and body mass index (BMI) (ß -2.51, 95% CI -3.56 to -1.4 and ß -0.05, 95% CI -0.09 to -0.01). PASI score and PASI 90/100 response were significantly associated with IFX Cmin (IRR 0.80, 95% CI 0.70 to 0.92; OR 1.79, 95% CI 1.18 to 2.71 and OR 1.79, 95% CI 1.14 to 2.81).CONCLUSION:
IFX Cmin significantly influences PASI 90/100 response rates. IFX Cmin wa significantly associated with ATI and BMI. The observed inter-individual variability in IFX Cmin supports the need for IFX drug monitoring.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psoríase
/
Fármacos Dermatológicos
/
Infliximab
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article