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https://www.readbyqxmd.com/read/28321492/anti-toxoplasma-antibodies-in-egyptian-rheumatoid-arthritis-patients
#1
Abeer A El-Henawy, Eman Abdel Razek Hafez, Nairmen Nabih, Naglaa M Shalaby, Mervat Mashaly
OBJECTIVE: To assess seroprevalence of anti-Toxoplasma gondii antibodies; both IgG and IgM in Egyptian rheumatoid arthritis (RA) patients versus a non-RA group and to compare anti-Toxoplasma antibodies seroprevalence among RA patients receiving traditional treatment and RA patients treated with biologic drug. METHODS: 60 RA patients and 60 healthy controls were enrolled in the study. Patients were categorized into two groups: one group included 30 patients receiving disease modifying anti-rheumatic drugs (DMARDs), while the other group included 30 patients receiving biologic agent, infliximab, a TNF-α antagonist...
March 20, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28318043/the-effects-of-pregnancy-on-the-pharmacokinetics-of-infliximab-and-adalimumab-in-inflammatory-bowel-disease
#2
C H Seow, Y Leung, N Vande Casteele, E Ehteshami Afshar, D Tanyingoh, G Bindra, M J Stewart, P L Beck, G G Kaplan, S Ghosh, R Panaccione
BACKGROUND: Transplacental transfer of infliximab and adalimumab results in detectable drug levels in the cord blood and infant. AIM: To determine if pregnancy influenced the pharmacokinetics of anti-TNF agents in women with inflammatory bowel disease. METHODS: Twenty-five women from the University of Calgary inflammatory bowel disease(IBD) pregnancy clinic on maintenance infliximab or adalimumab were recruited prospectively with serum bio-banking performed each trimester...
March 20, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28286562/golimumab-pharmacokinetics-in-ulcerative-colitis-a-literature-review
#3
REVIEW
Ines Harzallah, Josselin Rigaill, Nicolas Williet, Stephane Paul, Xavier Roblin
Golimumab (GLM) is the latest anti-tumor necrosis factor (TNF) that gained its marketing license. Thanks to the PURSUIT induction and maintenance trials, it was approved for the treatment of ulcerative colitis (UC) in 2013. The other anti-TNF drugs available are infliximab and adalimumab. These two drugs have validated algorithms concerning prescription and therapeutic drug monitoring (TDM) but little is known about GLM. The available data on GLM's exposure-response relationship in UC are from the PURSUIT trials and are recently published...
January 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28274164/impact-of-immunogenicity-on-response-to-anti-tnf-therapy-in-moderate-to-severe-plaque-psoriasis-results-of-the-predir-study
#4
Mariano Ara-Martín, Pedro Herranz Pinto, Dora Pascual-Salcedo
PURPOSE: This study was conducted to examine the relationship between loss of clinical response to anti-tumor necrosis factor (TNF) therapy and the production of anti-drug antibodies (ADAs) and the potential effects of biologic immunogenicity. MATERIALS AND METHODS: This observational, non-interventional, cross-sectional study included patients with moderate-to-severe plaque psoriasis and secondary failure of adalimumab, etanercept and infliximab who were seen in the clinical practice setting...
March 8, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28272355/serum-infliximab-trough-levels-in-45-children-with-inflammatory-bowel-disease-on-%C3%A2-maintenance-treatment
#5
Helena Rolandsdotter, Per Marits, Ulf Sundin, Ann-Charlotte Wikström, Ulrika L Fagerberg, Yigael Finkel, Michael Eberhardson
The role of trough serum infliximab (s-IFX) and antibodies toward IFX (ATI) during maintenance treatment remains unclear in children. The aim of the present study was to investigate trough s-IFX and ATI to identify any correlation with inflammatory activity and clinical response in a pediatric inflammatory bowel disease (IBD) cohort. We investigated the s-IFX trough levels in pediatric IBD patients (n = 45) on maintenance IFX treatment. Ninety-three blood samples were collected and demographics, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and albumin were recorded...
March 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230306/suppression-of-anti-drug-antibodies-to-infliximab-or-adalimumab-with-the-addition-of-an-immunomodulator-in-patients-with-inflammatory-bowel-disease
#6
A S Strik, G R van den Brink, C Ponsioen, R Mathot, M Löwenberg, G R D'Haens
BACKGROUND: Loss of response to anti-tumour necrosis factor (TNF) therapy in patients with inflammatory bowel disease (IBD) is often caused by anti-drug antibody formation with neutralisation of drug effect. Addition of an immunomodulator has been suggested to reduce immunogenicity, leading to regained response. AIM: To investigate whether addition of an immunomodulator to anti-TNF monotherapy could lead to anti-drug antibody suppression and regained clinical response in IBD patients...
February 23, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28222600/immunoassay-for-detection-of-infliximab-in-whole-blood-using-a-fiber-optic-surface-plasmon-resonance-biosensor
#7
Jiadi Lu, Dragana Spasic, Filip Delport, Thomas Van Stappen, Iris Detrez, Devin Daems, Séverine Vermeire, Ann Gils, Jeroen Lammertyn
Monitoring the concentration of a therapeutic drug antibody, infliximab (IFX), is recommended for enhancing its efficacy in patients with inflammatory bowel disease (IBD). However, IFX concentrations are currently determined in patients' serum/plasma, which requires sample preparation from blood, hence hampering the turnaround time. In this paper, we present a short immunoassay (10 min) using a fiber-optic surface plasmon resonance (FO-SPR) biosensor for detection of IFX spiked in 100-fold diluted serum, plasma, and whole blood...
March 3, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28211593/higher-infliximab-trough-levels-are-associated-with-perianal-fistula-healing-in-patients-with-crohn-s-disease
#8
A J Yarur, V Kanagala, D J Stein, F Czul, M A Quintero, D Agrawal, A Patel, K Best, C Fox, K Idstein, M T Abreu
BACKGROUND: Infliximab has been found to be efficacious in the treatment of fistulas in the setting of Crohn's disease, even though some patients do not benefit from therapy. AIM: To assess the correlation between perianal fistula healing and trough levels of infliximab. METHODS: In this cross-sectional study, we identified patients with Crohn's disease who had perianal fistulas and were treated with infliximab for at least 24 weeks. We excluded patients who underwent a faecal diversion procedure or proctectomy...
April 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28195852/a-real-life-population-pharmacokinetic-study-reveals-factors-associated-with-clearance-and-immunogenicity-of-infliximab-in-inflammatory-bowel-disease
#9
Johannan F Brandse, Diane Mould, Oscar Smeekes, Yaël Ashruf, Sabine Kuin, Anne Strik, Gijs R van den Brink, Geert R DʼHaens
BACKGROUND: Several factors influencing the pharmacokinetics of infliximab (IFX) in inflammatory bowel disease (IBD) have been identified. We studied the impact of patient, disease, and treatment characteristics on clearance and immunogenicity of IFX in a real-world patient-with-IBD cohort. METHODS: Serum concentrations of IFX and antibodies to IFX (ATIs) were measured in patients with IBD at a single center using an enzyme-linked immunosorbent assay and radioimmunoassay...
April 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28175221/p665-unchanged-infliximab-serum-concentrations-after-switching-from-the-reference-infliximab-to-the-biosimilar-ct-p13-in-patients-with-quiescent-crohn-s-disease-a-prospective-study
#10
A Strik, W van de Vrie, Y van Megen, J Bloemsaat-Minekus, T Rispens, G D'Haens
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28174944/dop033-severely-active-ulcerative-colitis-is-associated-with-high-baseline-infliximab-clearance-reduced-serum-half-life-and-worse-endoscopic-outcomes
#11
N Vande Casteele, V Jairath, B Levesque, B Feagan, W Sandborn
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172974/p382-a-panel-of-serum-markers-for-early-detection-of-endoscopic-healing-with-infliximab-in-patients-with-ulcerative-colitis
#12
M de Bruyn, R Ringold, M Ferrante, G Van Assche, G Opdenakker, A Dukler, S Vermeire
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172647/p481-serum-levels-of-infliximab-associate-with-early-mucosal-healing-in-crohn-s-disease-different-therapeutic-window-between-post-induction-and-maintenance-treatment
#13
T Feng, B Chen, R Mao, S Ben-Horin, M Chen
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172602/op006-correlation-of-durability-of-response-serum-trough-concentrations-and-outcome-parameters-long-term-follow-up-of-the-trough-concentration-adapted-infliximab-treatment-taxit-trial
#14
L Pouillon, M Ferrante, G Van Assche, P Rutgeerts, M Noman, N Vande Casteele, A Gils, S Vermeire
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172523/dop031-subtherapeutic-serum-infliximab-trough-levels-and-complete-mucosal-healing-are-associated-with-sustained-clinical-remission-after-infliximab-discontinuation-in-paediatric-crohn-s-disease-patients
#15
B Kang, K Lee, K Kim, J H Lee, Y H Choe
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28160250/thiopurines-and-methotrexate-use-in-ibd-patients-in-a-biologic-era
#16
REVIEW
Gerassimos J Mantzaris
Although we have been living in the era of biologic therapy for several decades, the use of immunomodulators (primarily thiopurines [azathioprine and mercaptopurine] and less so methotrexate) still remains an important component of the inflammatory bowel disease (IBD) pharmaceutical arsenal. Thiopurines as monotherapy exert corticosteroid-sparing effects and can maintain long-term remission in a considerable proportion of patients who have frequent relapses and are or have become mesalazine and/or corticosteroid intolerant or refractory...
March 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28147368/combining-therapeutic-drug-monitoring-with-biosimilars-a-strategy-to-improve-the-efficacy-of-biologicals-for-treating-inflammatory-bowel-diseases-at-an-affordable-cost
#17
REVIEW
Ann Gils
BACKGROUND: Biologicals provide a tight disease control but not all patients respond favourably to treatment. Some patients do not respond at all (primary non-responders), while other patients respond initially but show loss of response over time (secondary non-responders). Drug concentrations in the serum of patients can be monitored and correlated with biological, clinical or endoscopic response. Therapeutic thresholds have been defined for infliximab and adalimumab. The European Medicines Agency has approved 3 biosimilars of infliximab and new biosimilars are waiting approval...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28130330/biosimilar-infliximab-in-inflammatory-bowel-disease-outcomes-of-a-managed-switching-programme
#18
Violeta Razanskaite, Marion Bettey, Louise Downey, Julia Wright, James Callaghan, Miles Rush, Simon Whiteoak, Sarah Ker, Kim Perry, Caron Underhill, Eren Efrem, Iftikar Ahmed, Fraser Cummings
BACKGROUND AND AIMS: Biosimilar infliximab CT-P13 offers the potential for large drug acquisition cost savings. However, there are limited published data regarding its efficacy, safety, and immunogenicity in inflammatory bowel disease [IBD], particularly in switching IBD patients from originator to biosimilar infliximab. We present the outcomes of a service evaluation of switching IBD patients established on originator infliximab to biosimilar, using a managed switching programme funded via a gain share agreement in a UK teaching hospital...
January 27, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28125553/o-005-combination-therapy-with-methotrexate-does-not-change-infliximab-pharmacokinetics-in-children-with-inflammatory-bowel-disease
#19
Valentina Shakhnovich, Leon Van Haandel, Mara Becker, Ryan Funk
BACKGROUND: There remains a question of equipoise regarding the use of anti-TNF-α agent (e.g., infliximab) monotherapy versus combination therapy with immunomodulators (e.g., methotrexate), for the treatment of pediatric Inflammatory Bowel Disease (IBD). The aim of this prospective cross-sectional study was to assess the impact of methotrexate (MTX) on infliximab (IFX) pharmacokinetics (i.e., serum trough levels) and infliximab antibody (anti-IFX) formation in children with IBD. METHODS: Forty-one children with IBD (9-21 yr of age), receiving maintenance IFX infusions as part of their standard-of-medical-care, had serum IFX and anti-IFX concentrations assessed via an established NF-kB luciferase gene-reporter assay (ARUP Laboratories)...
February 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28125552/o-004-application-of-population-pharmacokinetic-modeling-to-develop-individualized-infliximab-dosing-strategies-in-pediatric-crohn-s-disease
#20
Adam Frymoyer, Daniel Hoekman, Tim de Meij, Thalia Hummel, Marc Benninga, Angelika Kindermann, Travis Piester, K T Park
BACKGROUND: Adequate infliximab (IFX) exposure is critical when treating Crohn's disease (CD), and trough concentrations <3 μg/mL are associated with loss of response. However, the pharmacokinetics of IFX are highly variable in children with CD, and this has made IFX dosing challenging in this population. Model-based drug dosing offers the potential for developing individualized dosing strategies. The objective of the current study was to evaluate the predictive performance and clinical utility of a previously published population pharmacokinetic model of IFX when applied to children with CD...
February 2017: Inflammatory Bowel Diseases
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