Prospective Observational Evaluation of the Time-Dependency of Adalimumab Immunogenicity and Drug Concentration in Ulcerative Colitis Patients: the POETIC II Study

Home self-injection of the human anti-tumour necrosis alpha [anti-TNFα] monoclonal adalimumab complicates prospective serial-sampling studies. Although a recent study examined adalimumab levels and immunogenicity in Crohn's disease [CD] patients, prospective real-world data from ulcerative coli...

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Veröffentlicht in:Journal of Crohn's and colitis 2024-03, Vol.18 (3), p.341-348
Hauptverfasser: Harnik, Sivan, Abitbol, Chaya M, Haj Natour, Ola, Yavzori, Miri, Fudim, Ella, Picard, Orit, Naftali, Timna, Broide, Efrat, Hirsch, Ayal, Selinger, Limor, Shachar, Eyal, Yablecovitch, Doron, Albshesh, Ahmad, Coscas, Daniel, Kopylov, Uri, Eliakim, Rami, Ben-Horin, Shomron, Ungar, Bella
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container_end_page 348
container_issue 3
container_start_page 341
container_title Journal of Crohn's and colitis
container_volume 18
creator Harnik, Sivan
Abitbol, Chaya M
Haj Natour, Ola
Yavzori, Miri
Fudim, Ella
Picard, Orit
Naftali, Timna
Broide, Efrat
Hirsch, Ayal
Selinger, Limor
Shachar, Eyal
Yablecovitch, Doron
Albshesh, Ahmad
Coscas, Daniel
Kopylov, Uri
Eliakim, Rami
Ben-Horin, Shomron
Ungar, Bella
description Home self-injection of the human anti-tumour necrosis alpha [anti-TNFα] monoclonal adalimumab complicates prospective serial-sampling studies. Although a recent study examined adalimumab levels and immunogenicity in Crohn's disease [CD] patients, prospective real-world data from ulcerative colitis [UC] patients are lacking. A three-monthly home-visit programme from induction was established prospectively for UC patients. Clinical scores were determined at each visit, and sera were obtained for assessment of drug and anti-adalimumab antibody levels. Calprotectin was measured using a smartphone-based app. This cohort was compared to a parallel prospective cohort of adalimumab-treated CD patients [POETIC1]. Fifty UC patients starting adalimumab [median follow-up 28 weeks] were compared to 98 adalimumab-treated CD patients [median follow-up 44 weeks]. Only 11/50 UC patients [22%] continued treatment to the end of the follow-up compared with 50/98 [51%] CD patients (odds ratio [OR] = 0.27, p = 0.001). Loss of response was significantly more common in UC patients [OR = 3.2, p = 0.001]. Seventeen patients [34%] in the UC cohort developed anti-adalimumab antibodies, 9/17 [52.9%] as early as week 2. There was no difference between patient cohorts in the overall development of anti-adalimumab antibodies [34% vs 30.6%, respectively, OR = 1.67, p = 0.67], nor was there a difference in early immunogenicity [OR = 1.39, p = 0.35]. There was no difference in low drug levels [
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Although a recent study examined adalimumab levels and immunogenicity in Crohn's disease [CD] patients, prospective real-world data from ulcerative colitis [UC] patients are lacking. A three-monthly home-visit programme from induction was established prospectively for UC patients. Clinical scores were determined at each visit, and sera were obtained for assessment of drug and anti-adalimumab antibody levels. Calprotectin was measured using a smartphone-based app. This cohort was compared to a parallel prospective cohort of adalimumab-treated CD patients [POETIC1]. Fifty UC patients starting adalimumab [median follow-up 28 weeks] were compared to 98 adalimumab-treated CD patients [median follow-up 44 weeks]. Only 11/50 UC patients [22%] continued treatment to the end of the follow-up compared with 50/98 [51%] CD patients (odds ratio [OR] = 0.27, p = 0.001). Loss of response was significantly more common in UC patients [OR = 3.2, p = 0.001]. Seventeen patients [34%] in the UC cohort developed anti-adalimumab antibodies, 9/17 [52.9%] as early as week 2. There was no difference between patient cohorts in the overall development of anti-adalimumab antibodies [34% vs 30.6%, respectively, OR = 1.67, p = 0.67], nor was there a difference in early immunogenicity [OR = 1.39, p = 0.35]. There was no difference in low drug levels [&lt;3 µg/mL] between the two cohorts [OR = 0.87, p = 0.83]. 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subjects Adalimumab - therapeutic use
Colitis, Ulcerative - drug therapy
Crohn Disease - drug therapy
Humans
Prospective Studies
Tumor Necrosis Factor-alpha
title Prospective Observational Evaluation of the Time-Dependency of Adalimumab Immunogenicity and Drug Concentration in Ulcerative Colitis Patients: the POETIC II Study
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