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Alsoud D, Moes DJAR, Wang Z, Soenen R, Layegh Z, Barclay M, Mizuno T, Minichmayr IK, Keizer RJ, Wicha SG, Wolbink G, Lambert J, Vermeire S, de Vries A, Papamichael K, Padullés-Zamora N, Dreesen E. Best Practice for Therapeutic Drug Monitoring of Infliximab: Position Statement from the International Association of Therapeutic Drug Monitoring and Clinical Toxicology. Ther Drug Monit 2024; 46:291-308. [PMID: 38648666 DOI: 10.1097/ftd.0000000000001204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 02/21/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Infliximab, an anti-tumor necrosis factor monoclonal antibody, has revolutionized the pharmacological management of immune-mediated inflammatory diseases (IMIDs). This position statement critically reviews and examines existing data on therapeutic drug monitoring (TDM) of infliximab in patients with IMIDs. It provides a practical guide on implementing TDM in current clinical practices and outlines priority areas for future research. METHODS The endorsing TDM of Biologics and Pharmacometrics Committees of the International Association of TDM and Clinical Toxicology collaborated to create this position statement. RESULTS Accumulating data support the evidence for TDM of infliximab in the treatment of inflammatory bowel diseases, with limited investigation in other IMIDs. A universal approach to TDM may not fully realize the benefits of improving therapeutic outcomes. Patients at risk for increased infliximab clearance, particularly with a proactive strategy, stand to gain the most from TDM. Personalized exposure targets based on therapeutic goals, patient phenotype, and infliximab administration route are recommended. Rapid assays and home sampling strategies offer flexibility for point-of-care TDM. Ongoing studies on model-informed precision dosing in inflammatory bowel disease will help assess the additional value of precision dosing software tools. Patient education and empowerment, and electronic health record-integrated TDM solutions will facilitate routine TDM implementation. Although optimization of therapeutic effectiveness is a primary focus, the cost-reducing potential of TDM also merits consideration. CONCLUSIONS Successful implementation of TDM for infliximab necessitates interdisciplinary collaboration among clinicians, hospital pharmacists, and (quantitative) clinical pharmacologists to ensure an efficient research trajectory.
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Affiliation(s)
- Dahham Alsoud
- Translational Research in Gastrointestinal Disorders, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Dirk Jan A R Moes
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center, Leiden, the Netherlands
| | - Zhigang Wang
- Clinical Pharmacology and Pharmacotherapy Unit, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Rani Soenen
- Dermatology Research Unit, Ghent University, Ghent, Belgium
- Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - Zohra Layegh
- Department of Pathology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Murray Barclay
- Departments of Gastroenterology and Clinical Pharmacology, Christchurch Hospital, Te Whatu Ora Waitaha and University of Otago, Christchurch, New Zealand
| | - Tomoyuki Mizuno
- Division of Translational and Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Iris K Minichmayr
- Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria
| | | | - Sebastian G Wicha
- Department of Clinical Pharmacy, Institute of Pharmacy, University of Hamburg, Hamburg, Germany
| | - Gertjan Wolbink
- Department of Rheumatology, Amsterdam Rheumatology and Immunology Center Location Reade, Amsterdam, Netherlands
- Sanquin Research and Landsteiner Laboratory, Department of Immunopathology, Amsterdam UMC, Amsterdam, Netherlands
| | - Jo Lambert
- Dermatology Research Unit, Ghent University, Ghent, Belgium
- Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - Séverine Vermeire
- Translational Research in Gastrointestinal Disorders, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Annick de Vries
- Sanquin Diagnostic Services, Pharma & Biotech Services, Amsterdam, the Netherlands
| | - Konstantinos Papamichael
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth-Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Núria Padullés-Zamora
- Department of Pharmacy, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), Hospitalet de Llobregat, Barcelona, Spain; and
- School of Pharmacy, University of Barcelona, Barcelona, Spain
| | - Erwin Dreesen
- Clinical Pharmacology and Pharmacotherapy Unit, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
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Deyhim T, Cheifetz AS, Papamichael K. Drug Clearance in Patients with Inflammatory Bowel Disease Treated with Biologics. J Clin Med 2023; 12:7132. [PMID: 38002743 PMCID: PMC10672599 DOI: 10.3390/jcm12227132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/04/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Biological therapy is very effective for treating patients with moderate to severe inflammatory bowel disease (IBD). However, up to 40% can have primary non-response, and up to 50% of the patients can experience a loss of response to anti-tumor necrosis factor therapy. These undesirable outcomes can be attributed to either a mechanistic failure or pharmacokinetic (PK) issues characterized by an inadequate drug exposure and a high drug clearance. There are several factors associated with accelerated clearance of biologics including increased body weight, low serum albumin and immunogenicity. Drug clearance has gained a lot of attention recently as cumulative data suggest that there is an association between drug clearance and therapeutic outcomes in patients with IBD. Moreover, clearance is used by model informed precision dosing (MIDP) tools, or PK dashboards, to adjust the dosing for reaching a target drug concentration threshold towards a more personalized application of TDM. However, the role of drug clearance in clinical practice is yet to be determined. This comprehensive review aims to present data regarding the variables affecting the clearance of specific biologics, the association of clearance with therapeutic outcomes and the role of clearance monitoring and MIPD in patients with IBD.
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Affiliation(s)
| | | | - Konstantinos Papamichael
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA; (T.D.); (A.S.C.)
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3
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Liu Y, He Z, Liang H, Han M, Wang J, Liu Q, Guan Y. A high-throughput UPLC-MS/MS method for the determination of eight anti-tumor drugs in plasma. Anal Biochem 2023:115230. [PMID: 37429484 DOI: 10.1016/j.ab.2023.115230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/21/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
Rapidly developing UPLC-MS/MS bioassays with high throughput and quality are challenging yet desired in routine clinics. METHODS & RESULTS: A high-throughput UPLC-MS/MS bioassay has been built for simultaneously quantifying gefitinib, ruxolitinib, dasatinib, imatinib, ibrutinib, methotrexate, cyclophosphamide and paclitaxel. After the protein precipitation with methanol, samples were separated on an Acquity BEH C18 column following a gradient elution system with methanol and 2 mM ammonium acetate in water at 40 °C with a run time of 3 min (flow rate 0.4 mL/min). Mass quantification in the positive ion SRM mode was then performed with electrospray ionization. The method of specificity, linearity, accuracy, precision, matrix effects, recovery, stability, dilution integrity and carryover were all validated as per the guideline of the China Food and Drug Administration whose values met the admissible limits. Application of the bioassay to therapeutic drug monitoring revealed important variability in the studied anti-tumour drugs. CONCLUSION: This validated approach was shown to be reliable and effective in clinical management, being a valuable support in therapeutic drug monitoring and subsequent individualized dosing optimization.
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Affiliation(s)
- Yao Liu
- Department of Pharmacy, The Fifth Affiliated Hospital of Sun Yat-sen University, Sun Yat-Sen University, Guangzhou 519000, China; Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Zhichao He
- Department of Pharmacy, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Heng Liang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Minzhen Han
- The Second Affiliated Hospital of Guizhou Medical University, Kaili, Guizhou, 556000, China
| | - Jinxingyi Wang
- The Second Affiliated Hospital of Guizhou Medical University, Kaili, Guizhou, 556000, China
| | - Qian Liu
- The Second Affiliated Hospital of Guizhou Medical University, Kaili, Guizhou, 556000, China; Guangdong RangerBio Technologies Co., Ltd., Dongguan 523000, China.
| | - Yanping Guan
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
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Kantasiripitak W, Outtier A, Wicha SG, Kensert A, Wang Z, Sabino J, Vermeire S, Thomas D, Ferrante M, Dreesen E. Multi‐model averaging improves the performance of model‐guided infliximab dosing in patients with inflammatory bowel diseases. CPT Pharmacometrics Syst Pharmacol 2022; 11:1045-1059. [PMID: 35706358 PMCID: PMC9381887 DOI: 10.1002/psp4.12813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/08/2022] [Accepted: 05/05/2022] [Indexed: 11/11/2022] Open
Abstract
Infliximab dosage de‐escalation without prior knowledge of drug concentrations may put patients at risk for underexposure and trigger the loss of response. A single‐model approach for model‐informed precision dosing during infliximab maintenance therapy has proven its clinical benefit in patients with inflammatory bowel diseases. We evaluated the predictive performances of two multi‐model approaches, a model selection algorithm and a model averaging algorithm, using 18 published population pharmacokinetic models of infliximab for guiding dosage de‐escalation. Data of 54 patients with Crohn’s disease and ulcerative colitis who underwent infliximab dosage de‐escalation after an earlier escalation were used. A priori prediction (based solely on covariate data) and maximum a posteriori prediction (based on covariate data and trough concentrations) were compared using accuracy and precision metrics and the classification accuracy at the trough concentration target of 5.0 mg/L. A priori prediction was inaccurate and imprecise, with the lowest classification accuracies irrespective of the approach (median 59%, interquartile range 59%–63%). Using the maximum a posteriori prediction, the model averaging algorithm had systematically better predictive performance than the model selection algorithm or the single‐model approach with any model, regardless of the number of concentration data. Only a single trough concentration (preferably at the point of care) sufficed for accurate and precise prediction. Predictive performance of both single‐ and multi‐model approaches was robust to the lack of covariate data. Model averaging using four models demonstrated similar predictive performance with a five‐fold shorter computation time. This model averaging algorithm was implemented in the TDMx software tool to guide infliximab dosage de‐escalation in the forthcoming prospective MODIFI study (NCT04982172).
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Affiliation(s)
- Wannee Kantasiripitak
- Department of Pharmaceutical and Pharmacological Sciences University of Leuven Leuven Belgium
| | - An Outtier
- Department of Gastroenterology and Hepatology University Hospitals Leuven Leuven Belgium
- Department of Chronic Diseases and Metabolism University of Leuven Leuven Belgium
| | - Sebastian G. Wicha
- Department of Clinical Pharmacy, Institute of Pharmacy University of Hamburg Hamburg Germany
| | - Alexander Kensert
- Department of Pharmaceutical and Pharmacological Sciences University of Leuven Leuven Belgium
- Department of Chemical Engineering Vrije Universiteit Brussels Brussels Belgium
| | - Zhigang Wang
- Department of Pharmaceutical and Pharmacological Sciences University of Leuven Leuven Belgium
| | - João Sabino
- Department of Gastroenterology and Hepatology University Hospitals Leuven Leuven Belgium
- Department of Chronic Diseases and Metabolism University of Leuven Leuven Belgium
| | - Séverine Vermeire
- Department of Gastroenterology and Hepatology University Hospitals Leuven Leuven Belgium
- Department of Chronic Diseases and Metabolism University of Leuven Leuven Belgium
| | - Debby Thomas
- Department of Pharmaceutical and Pharmacological Sciences University of Leuven Leuven Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology University Hospitals Leuven Leuven Belgium
- Department of Chronic Diseases and Metabolism University of Leuven Leuven Belgium
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences University of Leuven Leuven Belgium
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5
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Dreesen E. New Tools for Therapeutic Drug Monitoring: Making Big Things out of Small Pieces. J Crohns Colitis 2022; 16:175-176. [PMID: 34355244 DOI: 10.1093/ecco-jcc/jjab137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Erwin Dreesen
- Clinical Pharmacology and Pharmacotherapy Unit, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
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6
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Papamichael K, Afif W, Drobne D, Dubinsky MC, Ferrante M, Irving PM, Kamperidis N, Kobayashi T, Kotze PG, Lambert J, Noor NM, Roblin X, Roda G, Vande Casteele N, Yarur AJ, Arebi N, Danese S, Paul S, Sandborn WJ, Vermeire S, Cheifetz AS, Peyrin-Biroulet L. Therapeutic drug monitoring of biologics in inflammatory bowel disease: unmet needs and future perspectives. Lancet Gastroenterol Hepatol 2022; 7:171-185. [PMID: 35026171 PMCID: PMC10187071 DOI: 10.1016/s2468-1253(21)00223-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 01/05/2023]
Abstract
Therapeutic drug monitoring (TDM) has emerged as a useful tool for optimising the use of biologics, and in particular anti-tumour necrosis factor (anti-TNF) therapy, in inflammatory bowel disease (IBD). However, challenges remain and are hindering the widespread implementation of TDM in clinical practice. These barriers include identification of the optimal drug concentration to target, the lag time between sampling and results, and the proper interpretation of anti-drug antibody titres among different assays. Solutions to overcome these barriers include the harmonisation of TDM assays and the use of point-of-care testing. Other unmet needs include well designed prospective studies and randomised controlled trials focusing on proactive TDM, particularly during induction therapy. Future studies should also investigate the utility of TDM for biologics other than anti-TNF therapies in both IBD and other immune-mediated inflammatory diseases such as rheumatoid arthritis and psoriasis, and the use of pharmacokinetic modelling dashboards and pharmacogenetics towards individual personalised medicine.
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Affiliation(s)
- Konstantinos Papamichael
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Waqqas Afif
- Department of Medicine, Division of Gastroenterology, McGill University Health Center, Montreal, QC, Canada
| | - David Drobne
- Department of Gastroenterology, University Medical Centre Ljubljana, Ljubljana, Slovenia; Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Marla C Dubinsky
- Department of Pediatrics, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marc Ferrante
- KU Leuven, Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Peter M Irving
- Gastroenterology, Guy's and St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Paulo G Kotze
- Catholic University of Paraná (PUCPR), Curitiba, Brazil
| | - Jo Lambert
- Department of Head and Skin, Ghent University Hospital, Ghent, Belgium
| | - Nurulamin M Noor
- Department of Gastroenterology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Xavier Roblin
- Department of Gastroenterology, University Hospital of Saint Etienne, Saint Etienne, France
| | - Giulia Roda
- IBD Center, Humanitas Clinical and Research Center-IRCCS, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | | | - Naila Arebi
- Department of IBD, St Mark's Hospital, Imperial College London, London, UK
| | - Silvio Danese
- IBD Center, Humanitas Clinical and Research Center-IRCCS, Milan, Italy; Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Stephane Paul
- Department of Gastroenterology, University Hospital of Saint Etienne, Saint Etienne, France
| | - William J Sandborn
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Séverine Vermeire
- KU Leuven, Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Adam S Cheifetz
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Laurent Peyrin-Biroulet
- Department of Gastroenterology, Nancy University Hospital, Nancy, France; INSERM U1256 NGERE, Lorraine University, Nancy, France
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7
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Kantasiripitak W, Wang Z, Spriet I, Ferrante M, Dreesen E. Recent advancements in clearance monitoring of monoclonal antibodies in patients with inflammatory bowel diseases. Expert Rev Clin Pharmacol 2022; 14:1455-1466. [PMID: 35034509 DOI: 10.1080/17512433.2021.2028619] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Less than 50% of patients with inflammatory bowel diseases (IBD) receiving monoclonal antibody (mAb) therapy achieve endoscopic remission. Poor outcomes may indicate a need for dose optimization. During therapeutic drug monitoring (TDM), drug concentrations are measured, and when found too low, dosage regimen escalations are performed. To date, benefits of TDM of mAbs in patients with IBD are uncertain. AREAS COVERED This review presents an overview of what clearance monitoring is, how it can be performed, and why and when it may be valuable in treating patients with IBD. Virtual patients were used for illustration. A literature search was performed to summarize current evidence for clearance monitoring in IBD and other disease settings. EXPERT OPINION During clearance monitoring, mAb clearance is calculated and monitored over time. Higher mAb clearance in patients with IBD has been associated with higher target load (target-mediated drug disposition), protein-losing enteropathy (fecal drug loss), and immunogenicity. Although not prospectively confirmed, clearance monitoring might facilitate identification of (yet) asymptomatic disease flares or presence of (yet) undetectable anti-drug antibodies. Furthermore, clearance monitoring may be used to predict treatment outcomes. Whether dosage regimen adjustments can modify the clearance time course and the treatment outcome is to be determined.
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Affiliation(s)
- Wannee Kantasiripitak
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Zhigang Wang
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium.,Department of Pharmacy, University Hospitals Leuven, Leuven, Belgium
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium.,Department of Chronic Diseases and Metabolism, University of Leuven, Leuven, Belgium
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
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8
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Papamichael K, Cheifetz AS. Optimizing therapeutic drug monitoring in inflammatory bowel disease: a focus on therapeutic monoclonal antibodies. Expert Opin Drug Metab Toxicol 2022; 17:1423-1431. [DOI: 10.1080/17425255.2021.2027367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Konstantinos Papamichael
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Adam S. Cheifetz
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
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Faelens R, Wang Z, Bouillon T, Declerck P, Ferrante M, Vermeire S, Dreesen E. Model-Informed Precision Dosing during Infliximab Induction Therapy Reduces Variability in Exposure and Endoscopic Improvement between Patients with Ulcerative Colitis. Pharmaceutics 2021; 13:pharmaceutics13101623. [PMID: 34683916 PMCID: PMC8537637 DOI: 10.3390/pharmaceutics13101623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 12/24/2022] Open
Abstract
Model-informed precision dosing (MIPD) may be a solution to therapeutic failure of infliximab for patients with ulcerative colitis (UC), as underexposure could be avoided, and the probability of endoscopic improvement (pEI; Mayo endoscopic subscore ≤ 1) could be optimized. To investigate in silico whether this claim has merit, four induction dosing regimens were simulated: 5 mg/kg (label dosing), 10 mg/kg, covariate-based MIPD (fat-free mass, corticosteroid use, and presence of extensive colitis at baseline), and concentration-based MIPD (based on the trough concentration at day 14). Covariate- and concentration-based MIPD were chosen to target the same median area under the infliximab concentration-time curve up to endoscopy at day 84 (AUCd84), as was predicted from 10 mg/kg dosing. Dosing at 5 mg/kg resulted in a mean ± standard deviation pEI of 55.7 ± 9.0%. Increasing the dose to 10 mg/kg was predicted to improve pEI to 65.1 ± 6.1%. Covariate-based MIPD reduced variability in exposure and pEI (65.1 ± 5.5%). Concentration-based MIPD decreased variability further (66.0 ± 3.9%) but did so at an increased average dose of 2293 mg per patient, as compared to 2168 mg for 10 mg/kg dosing. Mean pEI remained unchanged between 10 mg/kg dosing and MIPD, since the same median AUCd84 was targeted. In conclusion, quantitative simulations predict MIPD will reduce variability in exposure and pEI between patients with UC during infliximab induction therapy.
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Affiliation(s)
- Ruben Faelens
- Department of Pharmaceutical and Pharmacological Sciences, Katholieke Universiteit Leuven, 3000 Leuven, Belgium; (R.F.); (Z.W.); (T.B.); (P.D.)
| | - Zhigang Wang
- Department of Pharmaceutical and Pharmacological Sciences, Katholieke Universiteit Leuven, 3000 Leuven, Belgium; (R.F.); (Z.W.); (T.B.); (P.D.)
| | - Thomas Bouillon
- Department of Pharmaceutical and Pharmacological Sciences, Katholieke Universiteit Leuven, 3000 Leuven, Belgium; (R.F.); (Z.W.); (T.B.); (P.D.)
| | - Paul Declerck
- Department of Pharmaceutical and Pharmacological Sciences, Katholieke Universiteit Leuven, 3000 Leuven, Belgium; (R.F.); (Z.W.); (T.B.); (P.D.)
| | - Marc Ferrante
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, 3000 Leuven, Belgium; (M.F.); (S.V.)
- Department of Chronic Diseases and Metabolism, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Séverine Vermeire
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, 3000 Leuven, Belgium; (M.F.); (S.V.)
- Department of Chronic Diseases and Metabolism, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
| | - Erwin Dreesen
- Department of Pharmaceutical and Pharmacological Sciences, Katholieke Universiteit Leuven, 3000 Leuven, Belgium; (R.F.); (Z.W.); (T.B.); (P.D.)
- Correspondence: ; Tel.: +32-16-37-27-53
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10
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Discovery of chiral N-2'-aryletheryl-1'-alkoxy-ethyl substituted arylisoquinolones with anti-inflammatory activity from the nucleophilic addition reactions of the thiophenols and oxazolinium. Eur J Med Chem 2021; 222:113583. [PMID: 34119832 DOI: 10.1016/j.ejmech.2021.113583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/25/2021] [Accepted: 05/23/2021] [Indexed: 12/16/2022]
Abstract
Herein we disclosed the novel nucleophilic addition reactions of the thiophenols and oxazolinium (DCZ0358) to produce N-2'-aryletheryl-1'-alkoxy-ethyl substituted arylisoquinolones. After evaluating the anti-inflammatory activity in vitro, 2d was found having significant anti-TNFα activity. Through the amplified synthesis of 2d, four monomers (3a-b and 4a-d) were obtained by chiral separation of the product. The reaction mechanism was proposed and explored by the control experiments. However, only the R-stereoisomers 3b and 4b have significant anti-TNFα activity in vitro (IC50 = 56 and 14 nM, respectively). Moreover, 4b exerts potent therapeutic effects on ulcerative colitis in vivo (30 mg/kg bw, qd, i. g.). The subsequent bio-target exploration of compound 4bvia molecular docking and the experimental validation disclosed that 4b has 3-fold selectivity of binding activity on estrogen receptor (ER) beta (β) (Ki = 760.86 nM) vs. alpha (α) (Ki = 2320.58 nM). Thus, it provides a novel type of non-steroidal leads for developing anti-inflammatory drugs.
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Laserna-Mendieta EJ, Salvador-Martín S, Marín-Jiménez I, Menchén LA, López-Cauce B, López-Fernández LA, Lucendo AJ. Comparison of a new rapid method for determination of serum anti-adalimumab and anti-infliximab antibodies with two established ELISA kits. J Pharm Biomed Anal 2021; 198:114003. [PMID: 33714800 DOI: 10.1016/j.jpba.2021.114003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Adalimumab (ADL), infliximab (IFX) and their biosimilars are widely used biological drugs. Some patients, however, generate neutralizing antibodies that hamper the effectiveness of these drugs. Evidence shows therapeutic drug monitoring of serum levels ADL/IFX and anti-drug antibodies (ADA) is useful to improve treatment effectiveness. We evaluated a new rapid quantitative method, Quantum Blue (QB), for determining serum anti-ADL and anti-IFX antibodies (Research Use Only labelling) by comparing it with two established ELISA kits, Promonitor (PM) and Lisa-Tracker (LT). METHODS Eighty samples (40 for each drug type) were analysed. Percentage of agreement and kappa statistic were used to compare positive/negative ADA results. Clinical implications for drug treatment in the patients with discordant results were evaluated. The Chi-square test was used to analyze differences for ADA detection in patients with disease flare and without concomitant immunosuppressant treatment. RESULTS Agreement exceeded 80 % among anti-ADL methods. Although LT ELISA showed a lower capacity in detecting anti-ADL antibodies, discrepancies were found for levels close to the cut-off concentration, thus having minimal impact on clinical decisions. Conversely, QB anti-IFX displayed low agreement with PM and LT ELISA kits (67.5 % and 50 %, respectively), and was unable to detect high levels of antibodies, therefore having major clinical implications. Agreement between PM and LT ELISA anti-IFX kits was 82.5 % with all discordant results being undetected for PM and slightly positive for LT. CONCLUSION QB anti-ADL shows similar performance to ELISA kits while QB anti-IFX needs further improvements to achieve reliable antibody detection.
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Affiliation(s)
- Emilio J Laserna-Mendieta
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, Spain; Clinical Laboratory, Hospital Universitario de La Princesa, Madrid, Spain; Instituto de Investigación Sanitaria de La Princesa, Madrid, Spain.
| | - Sara Salvador-Martín
- Department of Pharmacy, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Ignacio Marín-Jiménez
- Department of Gastroenterology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Luis A Menchén
- Department of Gastroenterology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Beatriz López-Cauce
- Department of Gastroenterology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Luis A López-Fernández
- Department of Pharmacy, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Spanish Clinical Research Network (SCReN), Madrid, Spain
| | - Alfredo J Lucendo
- Department of Gastroenterology, Hospital General de Tomelloso, Tomelloso, Spain; Instituto de Investigación Sanitaria de La Princesa, Madrid, Spain; Biomedical Research Network Centre for Liver and Digestive Diseases (CIBEREHD), Madrid, Spain.
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