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Winter DA, de Bruyne P, van der Woude J, Rizopoulos D, de Ridder L, Samsom J, Escher JC. Biomarkers predicting the effect of anti-TNF treatment in paediatric and adult inflammatory bowel disease. J Pediatr Gastroenterol Nutr 2024; 79:62-75. [PMID: 38698646 DOI: 10.1002/jpn3.12221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 05/05/2024]
Abstract
OBJECTIVES Paediatric and adult inflammatory bowel disease (pIBD, aIBD) patients may lose response to anti-tumour necrosis factor (TNF) treatment within the first year. Adult-extrapolated weight-based dosing is incorrect in children, due to age-related pharmacokinetic differences. We investigated biomarkers for initial and maintenance of response to infliximab (IFX) or adalimumab (ADA), comparing pIBD and aIBD patients. METHODS In this prospective, observational study, pIBD (n = 24) and aIBD (n = 21) patients were included when initiating anti-TNF. Escalation from standard dosing and continued anti-TNF at 12 and 18 months were assessed. Biomarkers included clinical laboratory parameters, faecal calprotectin (FCP) and IFX trough levels (TLs). Plasma proteomics was performed in pIBD. RESULTS During our study, treatment escalation (in clinical loss of response) occurred more common in pIBD versus aIBD (p = 0.02). We established that IFX therapy escalation in pIBD patients was not due to low infliximab levels. We identified 9 pro-inflammatory proteins that were elevated in patients losing response. CONCLUSION Anti-TNF exposure-response relationship may be different in pIBD versus aIBD. No biomarkers for maintained response were identified, but 9 inflammatory proteins were of interest as potential predictors for loss of response in pIBD.
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Affiliation(s)
- Dwight A Winter
- Department of Paediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Pauline de Bruyne
- Department of Pediatrics, Ghent University Hospital, Ghent University, Ghent, Belgium
| | | | | | - Lissy de Ridder
- Department of Paediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Janneke Samsom
- Laboratory of Paediatrics, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Johanna C Escher
- Department of Paediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
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2
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Colman RJ, Vuijk SA, Mathôt RAA, Van Limbergen J, Jongsma MME, Schreurs MWJ, Minar P, de Ridder L, D'Haens GRAM. Infliximab Monotherapy vs Combination Therapy for Pediatric Crohn's Disease Exhibit Similar Pharmacokinetics. Inflamm Bowel Dis 2024:izad307. [PMID: 38167922 DOI: 10.1093/ibd/izad307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND The use of concomitant azathioprine may improve efficacy and pharmacokinetic (PK) properties of infliximab (IFX) but is also associated with an increased risk of adverse events. Proactive therapeutic drug monitoring (pTDM) of IFX monotherapy is an alternative strategy to improve PK. The aim of this study was to evaluate whether IFX with an immunomodulator (combo) has PK benefits over IFX-pTDM (mono) in pediatric Crohn's disease (CD). METHODS This PK analysis included pediatric CD patients who started either IFX combo (TISKids study) or IFX mono with pTDM (REFINE cohort). Combo and mono IFX trough levels (TLs) and antibodies-to-infliximab were assessed at infusion 3, 4, and 5. A population PK model was built to compare IFX PK outcomes (clearance [CL], TLs and cumulative exposure) between combo and mono groups at infusion 4 and 5. Clinical response and steroid-free clinical remission (SFCR) was assessed at infusion 4 and 5. RESULTS This study included 128 pediatric CD patients (66 mono and 62 combo). At infusion 5, there was no significant difference between mono and combo median TLs 4.1 µg/mL (2.1, 7.8) vs 5.9 µg/mL (3.2, 9.4; P = .14) or median CL 0.26 L/d (0.21, 0.32) vs 0.26 L/d (0.21, 0.33; P = .81). Mono patients had a lower SFCR rate at infusion 5 (53% [31 of 59] vs 80% [32 of 40]; P = .01). Clinical response rates were significantly higher among combo than mono patients at both infusion 4 and 5. CONCLUSIONS This study suggests that there are no PK differences (TLs and CL) between combo and mono therapy in pediatric CD patients who started IFX.
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Affiliation(s)
- Ruben J Colman
- From the Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Stephanie A Vuijk
- Department of Pediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Ron A A Mathôt
- Department of Hospital Pharmacy & Clinical Pharmacology, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, the Netherlands
| | - Johan Van Limbergen
- Department of Pediatric Gastroenterology and Nutrition, Amsterdam University Medical Centers, University of Amsterdam, Emma Children's Hospital, Amsterdam, the Netherlands
- Tytgat Institute for Liver and Intestinal Research, Amsterdam Gastroenterology Endocrinology Metabolism, University of Amsterdam, Amsterdam, the Netherlands
| | - Maria M E Jongsma
- Department of Pediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | | | - Phillip Minar
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Lissy de Ridder
- Department of Pediatric Gastroenterology, Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Geert R A M D'Haens
- Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
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Nassar-Sheikh Rashid A, Schonenberg-Meinema D, Berends SE, van den Berg JM, Mathôt RAA. Population Pharmacokinetics of Infliximab in Children with Juvenile Idiopathic Arthritis. Ther Drug Monit 2022; 44:301-307. [PMID: 34292215 DOI: 10.1097/ftd.0000000000000914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/27/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND The recommended infliximab (IFX) dose in (pediatric) rheumatology practice is 3-6 mg/kg every 4-8 weeks. Higher dosage regimens (>10 mg/kg) of IFX are effective and safe. To optimize IFX treatment in patients with juvenile idiopathic arthritis (JIA), therapeutic drug monitoring might be beneficial. To support routine therapeutic drug monitoring of IFX and regimen optimization for patients with JIA, in-depth knowledge of the pharmacokinetic (PK) variability of IFX is needed. As soon as the optimal therapeutic drug ranges are known, PK model-based simulation can be used to individualize drug dosing recommendations. In this study, a population PK model for IFX is described for patients with JIA. METHODS Data including IFX trough concentrations and anti-IFX antibodies of 27 pediatric patients with JIA on IFX maintenance treatment were retrieved from electronic charts. Three population PK models from the literature were validated for the authors' data set using the nonlinear mixed-effects modeling program NONMEM. A novel population PK model was developed based on the study data. RESULTS A total of 65 blood samples obtained after a median of 32 days after the last IFX infusion (interquartile range 28-42) were analyzed. The 3 published models underpredicted the observed trough concentrations. A newly developed one-compartment model best described the data corresponding to IFX serum concentration over time in patients with JIA. CONCLUSIONS This study shows a novel PK model for IFX in patients with JIA. The data show that different PK models are needed for different age categories (children or adults) and different diseases.
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Affiliation(s)
- Amara Nassar-Sheikh Rashid
- Department of Pediatric Immunology, Rheumatology and Infectious Diseases, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands and Zaans Medical Center, Zaandam
| | - Dieneke Schonenberg-Meinema
- Department of Pediatric Immunology, Rheumatology and Infectious Diseases, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam ; and
| | - Sophie E Berends
- Department Hospital Pharmacy, Hospital Pharmacy, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - J Merlijn van den Berg
- Department of Pediatric Immunology, Rheumatology and Infectious Diseases, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam ; and
| | - Ron A A Mathôt
- Department Hospital Pharmacy, Hospital Pharmacy, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
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Salvador-Martín S, Melgarejo-Ortuño A, López-Fernández LA. Biomarkers for Optimization and Personalization of Anti-TNFs in Pediatric Inflammatory Bowel Disease. Pharmaceutics 2021; 13:pharmaceutics13111786. [PMID: 34834201 PMCID: PMC8617733 DOI: 10.3390/pharmaceutics13111786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/14/2022] Open
Abstract
The use of biological drugs has improved outcomes in pediatric inflammatory bowel disease (IBD). Prediction of the response to biological drugs would be extremely useful in IBD, and even more so in children, who are still growing physically and psychologically. Specific clinical, biochemical, and genetic parameters are considered predictive of response to biological drugs, although few studies have been carried out in children with IBD. In this review, we present current evidence on biological treatments used in pediatric IBD and the available biomarkers of response. We examine demographics, clinical characteristics, biomarkers (genetic, genomic, and cellular), and microbiota.
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Affiliation(s)
- Sara Salvador-Martín
- Servicio de Farmacia, Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (S.S.-M.); (A.M.-O.)
| | - Alejandra Melgarejo-Ortuño
- Servicio de Farmacia, Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (S.S.-M.); (A.M.-O.)
| | - Luis A. López-Fernández
- Servicio de Farmacia, Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (S.S.-M.); (A.M.-O.)
- Spanish Clinical Research Network (SCReN), 28040 Madrid, Spain
- Correspondence:
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Villemonteix J, Guérin-El Khourouj V, Hugot JP, Giardini C, Carcelain G, Martinez-Vinson C. Comparison of three immunoassays for infliximab trough level monitoring in paediatric inflammatory bowel diseases. Biologicals 2021; 70:17-21. [PMID: 33676831 DOI: 10.1016/j.biologicals.2021.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 02/07/2023] Open
Abstract
Many clinical studies in paediatric inflammatory bowel diseases (IBD) use infliximab trough level (IFX-TL) and detection of antibody against infliximab (ATI). Hence, comparison of commercially available assays is needed in paediatric samples to assess their reliability and their comparability. We measured IFX-TL and ATI-TL in sera samples of 53 IBD children using three ELISA kits: Lisa-Tracker® Duo Infliximab (Theradiag®), Ridascreen® IFX monitoring (R-Biopharm®) and Promonitor® IFX (Grifols®). Regarding IFX-TL, median values were comparable (p > 0.05), a good statistical correlation has been observed (0.73 ≤ R2 ≤ 0.85) between tested assays and the Bland-Altman analysis found an excellent agreement with a bias estimated between -0.56 and 0.12 and few values outside the 95% limits of agreement. However, qualitative comparison with therapeutic interval classifications showed some discrepancies (30.2%), mainly due to values near thresholds and more often than not with Theradiag® (22.6%). For ATI, because of non-standardized units, the qualitative comparison found a sensibly good agreement (98.1%). These data show a good agreement of IFX-TL and ATI measurement between three marketed ELISA assays with a small bias obtained. Variations in some results can lead to divergent therapeutic interval classifications and prompt us to be cautious in the interpretation of values near therapeutic thresholds.
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Affiliation(s)
- Juliette Villemonteix
- Laboratory of Immunology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France.
| | - Valérie Guérin-El Khourouj
- Laboratory of Immunology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France
| | - Jean-Pierre Hugot
- Department of Paediatric Gastroenterology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France
| | - Caroline Giardini
- Laboratory of Immunology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France
| | - Guislaine Carcelain
- Laboratory of Immunology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France
| | - Christine Martinez-Vinson
- Department of Paediatric Gastroenterology, Hôpital Universitaire Robert Debré, 48, Boulevard Sérurier 75935 PARIS Cedex 19, Assistance Publique Hôpitaux de Paris, Université de Paris, Paris, France
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Kapoor A, Crowley E. Advances in Therapeutic Drug Monitoring in Biologic Therapies for Pediatric Inflammatory Bowel Disease. Front Pediatr 2021; 9:661536. [PMID: 34123968 PMCID: PMC8187753 DOI: 10.3389/fped.2021.661536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/09/2021] [Indexed: 12/19/2022] Open
Abstract
In the current era of treat-to-target strategies, therapeutic drug monitoring (TDM) has emerged as a potential tool in optimizing the efficacy of biologics for children diagnosed with inflammatory bowel disease (IBD). The incorporation of TDM into treatment algorithms, however, has proven to be complex. "Proactive" TDM is emerging as a therapeutic strategy due to a recently published pediatric RCT showing a clear benefit of "proactive" TDM in anti-TNF therapy. However, target therapeutic values for different biologics for different disease states [ulcerative colitis (UC) vs. Crohn's disease (CD)] and different periods of disease activity (induction vs. remission) require further definition. This is especially true in pediatrics where the therapeutic armamentarium is limited, and fixed weight-based dosing may predispose to increased clearance leading to decreased drug exposure and subsequent loss of response (pharmacokinetic and/or immunogenic). Model-based dosing for biologics offers an exciting insight into dose individualization thereby minimizing the chances of losing response. Similarly, point-of-care testing promises real-time assessment of drug levels and individualized decision-making. In the current clinical realm, TDM is being used to prolong drug durability and efficacy and prevent loss of response. Ongoing innovations may transform it into a personalized tool to achieve optimal therapeutic endpoints.
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Affiliation(s)
- Akshay Kapoor
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, London Health Sciences Centre, Children's Hospital Western Ontario, Western University, London, ON, Canada
| | - Eileen Crowley
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, London Health Sciences Centre, Children's Hospital Western Ontario, Western University, London, ON, Canada
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Genetic Predictors of Long-term Response to Antitumor Necrosis Factor Agents in Pediatric Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2020; 71:508-515. [PMID: 32773718 DOI: 10.1097/mpg.0000000000002840] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Inflammatory bowel disease (IBD) is more complex in children and they will have to live with the disease for much longer. For this reason, it is necessary to optimize treatment. The polymorphisms associated with the response to anti-tumor necrosis factor (TNF) drugs in adults with IBD have not been analyzed in children. The aim of the study was to identify genetic variants associated with the long-term response to anti-TNF drugs in children with IBD. METHODS An observational, longitudinal, ambispective cohort's study was conducted. We recruited 209 anti-TNF-treated children diagnosed with IBD and genotyped 21 polymorphisms previously studied in adults with Crohn disease (CD) using real-time PCR. The association between single-nucleotide polymorphisms (SNPs) and time-to-failure was analyzed using the log-rank test. RESULTS After multivariate analysis, 3 SNPs in IL10, IL17A and IL6 were significantly associated with response to anti-TNF treatment among patients diagnosed with CD (rs1800872-HR, 4.749 (95% confidence interval [CI] 1.156-19.517), P value < 0.05; rs2275913-HR, 0.320 [95% CI 0.111-0.920], P value < 0.05; and rs10499563-HR, 0.210 [95% CI 0.047-0.947], P value 0.05, respectively). None of these SNPs were associated with response to infliximab in adults diagnosed with CD. Among patients diagnosed with ulcerative colitis (UC), 1 SNP in LY96 was significantly associated with response to anti-TNF treatment (rs-11465996-HR, 10.220 [95% CI 1.849-56.504] P value < 0.05). CONCLUSIONS Genotyping of these DNA variants before starting treatment may help to identify children who are long-term responders to anti-TNF drugs, and thus tailor treatment of pediatric IBD.
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Salvador-Martín S, Pujol-Muncunill G, Bossacoma F, Navas-López VM, Gallego-Fernández C, Segarra O, Clemente S, Muñoz-Codoceo R, Viada J, Magallares L, Martínez-Ojinaga E, Moreno-Álvarez A, Solar-Boga A, Loverdos I, Merino-Bohórquez V, Balboa-Vega MJ, Rodriguez-Martinez A, Alvarez-Vayo C, Sanchez C, Tolin M, Blanca-García JA, García-Romero R, Eizaguirre FJ, Sánchez-Hernandez JG, de Caldas RG, Millán-Jimenez A, Aznal E, Abarca-Zabalía J, Sanjurjo-Sáez M, López-Fernández LA. Pharmacogenetics of trough serum anti-TNF levels in paediatric inflammatory bowel disease. Br J Clin Pharmacol 2020; 87:447-457. [PMID: 32478906 DOI: 10.1111/bcp.14400] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022] Open
Abstract
AIMS Identifying DNA variants associated with trough serum anti-tumour necrosis factor (TNF) levels could predict response to treatment in inflammatory bowel disease (IBD). To date, no specific studies have been performed in children. The aim of this study was to identify genetic variants associated with trough serum anti-TNF levels and whether these variants are differential markers for infliximab and adalimumab. METHODS We included 154 children (age < 18 years) from 17 hospitals who had been diagnosed with IBD and actively treated with infliximab or adalimumab. Twenty-one polymorphisms were genotyped using real-time PCR. Trough serum anti-TNF levels were measured using enzyme-linked immunosorbent assay (ELISA). The association between DNA polymorphisms and the therapeutic range or the absolute values of anti-TNF drugs was analysed by Fisher exact test, student's t-test and logistic regression. RESULTS The variants rs5030728 (TLR4) and rs11465996 (LY96) were associated with subtherapeutic infliximab levels. rs1816702 (TLR2) was associated with supratherapeutic levels and rs3397 (TNFRSF1B) with subtherapeutic levels of adalimumab (P < .05). In addition, rs1816702 (TLR2) and rs2569190 (CD14) were associated with absolute values of trough serum adalimumab, and rs2569190 (CD14) was associated with absolute values of trough serum adalimumab and infliximab (P < .05). CONCLUSION Genotyping of these DNA variants before starting treatment may help to select the best anti-TNF drug in paediatric patients. The SNP rs1816702 is the most promising marker for tailoring the anti-TNF regimen in children with IBD. For the first time, DNA variants are associated with trough serum anti-TNF levels.
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Affiliation(s)
- Sara Salvador-Martín
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Gemma Pujol-Muncunill
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Ferran Bossacoma
- Fundació Sant Joan de Déu, Fundació Salut Emporda, Barcelona, Spain
| | - Víctor Manuel Navas-López
- Paediatric Gastroenterology and Nutrition Unit, Hospital Regional Universitario de Málaga, IBIMA Multidisciplinary Group for Paediatric Research, Málaga, Spain
| | | | - Oscar Segarra
- Paediatric Gastroenterology Unit, Hospital Universitario Vall d'Hebrón, Barcelona, Spain
| | - Susana Clemente
- Pharmacy Service, Hospital Universitario Vall d'Hebrón, Barcelona, Spain
| | - Rosana Muñoz-Codoceo
- Department of Paediatric Gastroenterology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Javier Viada
- Department of Paediatric Gastroenterology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - Lorena Magallares
- Department of Paediatric Gastroenterology, University Hospital La Paz, Madrid, Spain
| | - Eva Martínez-Ojinaga
- Department of Paediatric Gastroenterology, University Hospital La Paz, Madrid, Spain
| | - Ana Moreno-Álvarez
- Paediatric Gastroenterology Unit, Department of Paediatrics, A Coruña University Hospital, A Coruña, Spain
| | - Alfonso Solar-Boga
- Paediatric Gastroenterology Unit, Department of Paediatrics, A Coruña University Hospital, A Coruña, Spain
| | - Inés Loverdos
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital de Sabadell, Corporació Sanitària Universitària Parc Taulí, Barcelona, Spain
| | | | | | - Alejandro Rodriguez-Martinez
- Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Virgen del Rocío, Sevilla, Spain
| | | | - Cesar Sanchez
- Gastroenterology Unit, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Mar Tolin
- Gastroenterology Unit, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | | | - Ruth García-Romero
- Paediatric Gastroenterology Unit, Hospital Infantil Miguel Servet, Zaragoza, Spain
| | | | | | | | | | - Elena Aznal
- Paediatry Department, Hospital Virgen del Camino, Pamplona, Spain
| | - Judith Abarca-Zabalía
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - María Sanjurjo-Sáez
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Luis Andrés López-Fernández
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Spanish Clinical Research Network, SCReN, Madrid, Spain
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Optimizing Antitumor Necrosis Factor Treatment in Pediatric Inflammatory Bowel Disease With Therapeutic Drug Monitoring. J Pediatr Gastroenterol Nutr 2020; 71:12-18. [PMID: 32142005 DOI: 10.1097/mpg.0000000000002704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Biological agents have revolutionized inflammatory bowel disease treatment but primary nonresponse and secondary loss of response are common with resulting adverse outcomes. Clinical trials demonstrated an association between serum drug concentrations, as well as the presence of antidrug antibodies, and loss-of-response. Therapeutic drug monitoring (TDM), defined as the evaluation of drug concentrations and antidrug antibodies, is appearing as a strategy to optimize treatment and take full advantage from these drugs. TDM appears to be a promising tool in clinical practice, especially in pediatric patients, who have pronounced fluctuations in the pharmacokinetics of the drugs.The authors present a literature review about antitumor necrosis factor therapy optimization based on personalized treatment strategies according to TDM and possible strategies to recapture loss of response, including an algorithm for practical management.
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10
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Pharmacokinetics, Pharmacodynamics, and Immunogenicity of Infliximab in Pediatric Inflammatory Bowel Disease: A Systematic Review and Revised Dosing Considerations. J Pediatr Gastroenterol Nutr 2020; 70:763-776. [PMID: 32443029 DOI: 10.1097/mpg.0000000000002631] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Infliximab (IFX), a monoclonal antibody directed against tumor necrosis factor alpha is a potent treatment option for inflammatory bowel disease (IBD). Dosing regimens in children are extrapolated from adult data using a fixed, weight-based dose, which is often not adequate. While clinical trials have focused on safety and efficacy, there is limited data on pharmacokinetic characteristics and immunogenicity of IFX in children. The objective was to provide a systematic overview of current literature on pharmacokinetic and immunogenicity of IFX in children with IBD, to assess the validity of current adult to pediatric dosing extrapolation. METHODS A literature search identified publications up to October 2018. Eligibility criteria were study population consisting of children and/or adolescents with IBD, report of IFX trough levels and/or antibodies-to IFX, full text article or abstract, article in English, and original data. RESULTS Initial electronic search yielded 2360 potentially relevant articles, with 1831 remaining after removal of duplicates. An additional search yielded another 202 potentially relevant articles. Of the 2033 retrieved articles, 2000 articles were excluded based on title, abstract, or eligibility criteria. Clearance of IFX was increased in young children and children with extensive disease, leading to lower trough levels after extrapolated dosing of 5 mg/kg, antibodies-to IFX emergence, and subsequent reduced efficacy. CONCLUSIONS Adult to pediatric weight-based dosing extrapolation is often inadequate. We provide several considerations for optimal dosing of IFX in children and adolescents with IBD.
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Kolho KL. Therapeutic Drug Monitoring and Outcome of Infliximab Therapy in Pediatric Onset Inflammatory Bowel Disease. Front Pediatr 2020; 8:623689. [PMID: 33520903 PMCID: PMC7838533 DOI: 10.3389/fped.2020.623689] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/15/2020] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) with pediatric onset has become more prevalent during past decades. Thus, the number of patients with moderate to severe disease subtype treated with antagonists to tumor necrosis factor alpha (TNFα) has concurrently risen. Most pediatric patients initially respond to these drugs but will need dose escalation during the first year of therapy. As pediatric data regarding therapeutic drug monitoring during therapy with TNFα-blocker adalimumab are sparse, this review focuses on the literature on therapeutic drug monitoring of infliximab and how it may guide management.
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Affiliation(s)
- Kaija-Leena Kolho
- Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.,Faculty of Medicine and Medical Technology, Tampere University, Tampere, Finland
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Infliximab for pediatric patients with ulcerative colitis: a phase 3, open-label, uncontrolled, multicenter trial in Japan. BMC Pediatr 2019; 19:351. [PMID: 31607268 PMCID: PMC6790239 DOI: 10.1186/s12887-019-1739-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/20/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Pediatric ulcerative colitis (UC) is typically more extensive and has a more active disease course than adult UC, and requires early treatment augmentation to achieve and maintain disease remission. The present study aimed to investigate the efficacy, safety, and pharmacokinetic profile of infliximab (IFX) in pediatric patients with moderate-to-severe UC and inadequate response to existing treatment. METHODS This open-label, uncontrolled, multicenter, Phase 3 trial was conducted at 17 centers in Japan between April 2012 and September 2014. Pediatric patients (aged 6-17 years) diagnosed with moderate-to-severe UC received a treatment protocol comprising 5 mg/kg IFX at Weeks 0, 2, and 6, and Clinical Activity Index (CAI)-based responders at Week 8 also received treatment at 8-week intervals at Weeks 14 and 22, with a final evaluation at Week 30. RESULTS A total of 21 patients were treated in this study. IFX therapy rapidly improved clinical symptoms, and this effect was maintained for up to 30 weeks. Overall CAI-based remission rate was 42.9% and overall Pediatric Ulcerative Colitis Activity Index (PUCAI)-based remission rate was 19.0%. Median partial Mayo score was 6.0 at baseline and 4.0 at Week 30 (overall). Among the eight patients who underwent sigmoidoscopy, Mayo response was achieved at Week 30 (overall) in three patients (37.5%). Trough serum IFX concentrations in Week 8 CAI-based responders were maintained throughout the study period. Adverse events and serious adverse events were observed in 95.2 and 14.3% of patients, respectively. CONCLUSIONS These results support the use of IFX in the treatment of pediatric patients with UC with inadequate response to existing treatment. TRIAL REGISTRATION ClinicalTrials.gov, registration number: NCT01585155 .
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Adequate Infliximab Exposure During Induction Predicts Remission in Paediatric Patients With Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2019; 68:847-853. [PMID: 30633108 DOI: 10.1097/mpg.0000000000002265] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Therapeutic drug monitoring has been proposed as a useful tool in the management of infliximab (IFX) treated patients with inflammatory bowel disease. The aim of this retrospective study was to determine whether IFX trough levels after induction therapy are predictive for outcome at week 52. METHODS All pediatric patients with inflammatory bowel disease receiving maintenance IFX at our centre, with IFX trough level available at their first maintenance infusion and a follow-up of at least 52 weeks were included. IFX induction regimens could be intensified at the discretion of the treating physician. All children received proactive drug monitoring during maintenance with dose adaptation aiming to target a therapeutic window of 3 to 7 μg/mL. RESULTS We included 35 children (23 with Crohn disease and 12 with ulcerative colitis). Median IFX trough levels just before the first maintenance infusion were significantly higher in children achieving clinical (4.6 μg/mL [2.7-11.8] vs 1.5 μg/mL [0.9-3.0]), biological (4.6 μg/mL [2.5-10.3] vs 2.6 μg/mL [0.3-3.2]) and combined clinical/biological remission (6.0 μg/mL [3.2-12.0] vs 2.6 μg/mL [1.1-3.2]) at week 52 compared to children not meeting these criteria (all P ≤ 0.002). Binary logistic regression identified these trough levels as the only predictor for the same outcomes with an odds ratio (95% confidence interval) of 2.083 (1.085-3.998), 2.203 (1.101-4.408), and 2.264 (1.096-4.680), respectively (all P < 0.05). CONCLUSIONS Adequate IFX exposure during induction therapy is associated with better clinical and/or biological remission at week 52. Postinduction IFX trough levels were the only predictor for clinical and/or biological remission at week 52.
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Kang B, Choi SY, Choi YO, Lee SY, Baek SY, Sohn I, Choe BH, Lee HJ, Choe YH. Infliximab Trough Levels Are Associated With Mucosal Healing During Maintenance Treatment With Infliximab in Paediatric Crohn's Disease. J Crohns Colitis 2019; 13:189-197. [PMID: 30452616 DOI: 10.1093/ecco-jcc/jjy155] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Mucosal healing is an important treatment goal in Crohn's disease. We investigated the association between serum infliximab trough levels and mucosal healing, and the infliximab cut-off levels required for mucosal healing in paediatric patients. METHODS In this multicentre, retrospective, cross-sectional study, medical records and electronic data of paediatric patients with luminal Crohn's disease, who had received infliximab for ≥1 year, were examined. Ileocolonoscopy was performed on the same day as the infliximab infusion, and serum samples for trough levels were collected immediately before infusion. Mucosal healing was defined as a Simple Endoscopic Score for Crohn's Disease of 0. Univariate, multivariate logistic regression, and receiver operating characteristic curve analyses were performed. RESULTS Overall, 105 patients [median age 14.8 years] were included, with mucosal healing observed in 48.6%. Median serum infliximab trough levels were higher in patients with mucosal healing [4.5 µg/mL] than without [3.3 µg/mL, p = 0.002]. In the final multivariate model, infliximab trough level ≥4.2 µg/mL [p = 0.002] and ≥1-year duration from diagnosis to infliximab treatment [p = 0.003] were positively and negatively associated with mucosal healing, respectively. The infliximab trough level for achieving mucosal healing with a specificity of 80% was ≥5 µg/mL. CONCLUSIONS Associations between serum infliximab trough concentrations and mucosal healing were observed in paediatric patients. Identification of the infliximab trough level that positively associates with mucosal healing in most paediatric patients with Crohn's disease [≥5 µg/mL] may guide treatment decisions to optimise therapeutic response in the era of treat-to-target.
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Affiliation(s)
- Ben Kang
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea.,Crohn's and Colitis Association in Daegu-Gyeongbuk [CCAiD], Daegu, South Korea
| | - So Yoon Choi
- Department of Pediatrics, Inje University College of Medicine, Busan, South Korea
| | - Young Ok Choi
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Soo-Youn Lee
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Sun-Young Baek
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Insuk Sohn
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Byung-Ho Choe
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu, South Korea.,Crohn's and Colitis Association in Daegu-Gyeongbuk [CCAiD], Daegu, South Korea
| | - Hae Jeong Lee
- Department of Pediatrics, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea
| | - Yon Ho Choe
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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van Hoeve K, Dreesen E, Hoffman I, Van Assche G, Ferrante M, Gils A, Vermeire S. Higher Infliximab Trough Levels Are Associated With Better Outcome in Paediatric Patients With Inflammatory Bowel Disease. J Crohns Colitis 2018; 12:1316-1325. [PMID: 30239644 DOI: 10.1093/ecco-jcc/jjy111] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The role of therapeutic drug monitoring for infliximab [IFX] therapy in children with inflammatory bowel disease [IBD] is poorly investigated. We determined if IFX exposure correlates with long-term remission in children. METHODS In this retrospective study, all children with Crohn's disease [CD] and ulcerative colitis [UC], receiving maintenance IFX at our centre, were included. Serum trough levels and cumulative drug exposure were correlated with clinical, biological, and endoscopic remission. All children received proactive drug monitoring and dose adaptation aiming to target a therapeutic window of 3-7 µg/mL. All data are presented as median [interquartile range]. RESULTS A total of 686 serum levels during IFX maintenance in 52 paediatric patients [33 CD and 19 UC] were included (median 9 [4-18] per patient). With a median of 17 [8-36] months under IFX therapy, 39/52 [75%] patients were in clinical remission and 29/40 [73%] patients were in endoscopic remission. Median IFX trough levels were significantly higher when children achieved clinical remission (5.4 [3.8-8.0] µg/mL versus 4.2 [2.6-6.7] µg/mL), biological remission (5.2 [3.7-7.7] µg/mL versus 4.2 [2.6-6.5] µg/mL), combined clinical and biological remission (5.7 [4.0-8.2] µg/mL versus 4.4 [2.7-6.8] µg/mL) and endoscopic remission (6.5 [4.2-9.5] µg/mL versus 3.2 [2.3-5.6] µg/mL) compared with not meeting these criteria [all p ≤ 0.001]. CONCLUSIONS In this large paediatric cohort, children with clinical and/or endoscopic remission had significantly higher IFX exposure during maintenance therapy. We showed excellent outcome data using serial and systematic measurements of drug levels. This could provide a rationale for the use of proactive drug monitoring in children in order to improve long-term outcomes.
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Affiliation(s)
- Karen van Hoeve
- Department of Paediatric Gastroenterology & Hepatology & Nutrition, University Hospitals Leuven, KU Leuven, Leuven, Belgium.,TARGID, Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium
| | - Erwin Dreesen
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Ilse Hoffman
- Department of Paediatric Gastroenterology & Hepatology & Nutrition, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Gert Van Assche
- TARGID, Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium.,Department of Gastroenterology & Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Marc Ferrante
- TARGID, Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium.,Department of Gastroenterology & Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Ann Gils
- Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- TARGID, Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], KU Leuven, Leuven, Belgium.,Department of Gastroenterology & Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium
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Association Between Infliximab Drug and Antibody Levels and Therapy Outcome in Pediatric Inflammatory Bowel Diseases. J Pediatr Gastroenterol Nutr 2018; 67:507-512. [PMID: 29901557 DOI: 10.1097/mpg.0000000000002051] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES While infliximab pharmacokinetics are associated with therapy outcome in adult inflammatory bowel disease (IBD) population, limited data are available in pediatric patients. We aimed to define the relationship between infliximab trough and antibodies' levels (IFX-TL, ATI) and clinical, biomarker remission. METHODS IFX-TL and ATI were routinely obtained between 2011 and 2017. Associations with clinical and inflammatory (C-reactive protein, CRP) end-points were studied throughout the first year of infliximab therapy. RESULTS A total of 63 patients (50 Crohn disease, 13 ulcerative colitis, median follow-up 16 months, median 8 samples/patient) were included, and 773 sera-samples were analyzed. Sera of patients in clinical remission had higher median IFX-TLs than sera of those with active disease (4 vs 2.25 μg/mL, P < 0.0001). In addition, patients with normal CRP had a higher median IFX-TL than those with elevated CRP (P = 0.02). Moreover, IFX-TL > 9.2 μg/mL at week 2 predicted clinical remission by week 14 (sensitivity 71.4%, specificity 81.2%, area under curve (AUC) = 0.73, P = 0.02) and IFX-TL > 2.2 μg/mL at week 6 predicted infliximab retention beyond 1 year of treatment (sensitivity 88.9%, specificity 100.0%, AUC = 0.974, P < 0.0001). CONCLUSIONS A significant association between IFX-TL and ATI and clinical and biomarker remission status in pediatric IBD patients was demonstrated, including a temporal association between week 2, 6 levels and outcome of induction and between week 6 and 14 levels and remission at 1 year of therapy. These findings suggest that therapeutic drug monitoring may be considered for management guidance among pediatric IBD patients.
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Tajiri H, Motoya S, Kinjo F, Maemoto A, Matsumoto T, Sato N, Yamada H, Nagano M, Susuta Y, Ozaki K, Kondo K, Hibi T. Infliximab for pediatric patients with Crohn's disease: A Phase 3, open-label, uncontrolled, multicenter trial in Japan. PLoS One 2018; 13:e0201956. [PMID: 30114224 PMCID: PMC6095542 DOI: 10.1371/journal.pone.0201956] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 07/24/2018] [Indexed: 12/13/2022] Open
Abstract
Objectives The prevalence of pediatric Crohn’s disease (CD) is increasing in Japan and other countries, and many patients are unresponsive to or do not tolerate current treatment options. This study aimed to investigate the efficacy, safety, and pharmacokinetic profile of infliximab (IFX) in pediatric patients with moderate-to-severe CD and inadequate response to existing treatment. Study design This was an open-label, uncontrolled, multicenter Phase 3 study conducted at nine sites in Japan between April 2012 and March 2015. Pediatric patients (aged 6–17 years) with moderate-to-severe CD were treated with IFX 5 mg/kg at Weeks 0, 2, and 6, and at 8-week intervals thereafter until Week 46, with final evaluation at Week 54. IFX dose was increased to 10 mg/kg in patients who showed loss of response to IFX from Week 14 onwards. Results A total of 14 patients fulfilled eligibility criteria and were treated. Dose-escalation criteria were met by five patients who then received 10 mg/kg IFX. The remaining nine patients continued to receive an IFX dose of 5 mg/kg. IFX rapidly improved clinical symptoms and its effect was maintained for up to 54 weeks. Overall Pediatric Crohn’s Disease Activity Index (PCDAI) response rate was 85.7%, and overall PCDAI remission rate was 64.3%. Three out of five patients who increased IFX dose regained PCDAI remission by retrieval of serum IFX concentration. Adverse events and serious adverse events occurred in 100.0% and 14.3% of patients, respectively. There was no substantial difference in the safety profiles of patients taking a constant dose of 5 mg/kg and those taking an increased dose of 10 mg/kg. Conclusions These findings support the effective use of IFX in the treatment of pediatric patients with CD where other treatments have proven ineffective.
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Affiliation(s)
- Hitoshi Tajiri
- Department of Pediatrics, Osaka General Medical Center, Osaka, Japan
- * E-mail:
| | - Satoshi Motoya
- Inflammatory Bowel Diseases Center, Sapporo-Kosei General Hospital, Sapporo, Japan
| | - Fukunori Kinjo
- Department of Endoscopy, University of the Ryukyus Hospital, Okinawa, Japan
| | - Atsuo Maemoto
- Inflammatory Bowel Disease Center, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
| | - Takayuki Matsumoto
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriko Sato
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Hiroshi Yamada
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Mieko Nagano
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Yutaka Susuta
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Kunihiko Ozaki
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Kazuoki Kondo
- Ikuyaku. Integrated Value Development Division, Mitsubishi Tanabe Pharma Corporation, Tokyo, Japan
| | - Toshifumi Hibi
- Center for Advanced IBD Research and Treatment, Kitasato Institute Hospital, Kitasato University, Tokyo, Japan
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Carman N, Mack DR, Benchimol EI. Therapeutic Drug Monitoring in Pediatric Inflammatory Bowel Disease. Curr Gastroenterol Rep 2018; 20:18. [PMID: 29623442 DOI: 10.1007/s11894-018-0623-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE OF REVIEW Therapeutic drug monitoring (TDM) has emerged as a useful tool to optimize the use of drug therapies in adults with inflammatory bowel disease (IBD), including both Crohn's disease (CD) and ulcerative colitis (UC), especially during the use of biological therapies, for which the pharmacokinetics and pharmacodynamics are highly variable among patients. Fewer data exist in children. This review examines the current literature on TDM in pediatric IBD. RECENT FINDINGS Drug clearance is affected by a number of patient and disease factors. For thiopurines, adjusting dosing by monitoring 6-thioguanine (6TGN) and 6-methylmercaptopurine ((6MMP) levels is demonstrated to maximize response and minimize toxicity, while monitoring metabolite levels when treating with anti-tumor necrosis factor (anti-TNF) remain controversial. While in adults the use of TDM in the setting of loss of response to anti-TNF therapy is established, in children, only a small number of studies exist, but these too have encouraging results. There are however, conflicting data regarding the optimal timing of TDM, comparing "reactive" monitoring and "proactive" monitoring. No such data exist in pediatrics. TDM is cost-effective, and dose reduction may represent a safety benefit. There are limited adult data for use of TDM for the newer biologics, vedolizumab and ustekinumab, but early results suggest similarly promising utility. The use of TDM in pediatric IBD is increasing in clinical practice, with similar efficacy to adults demonstrated in children with loss of response to anti-TNF therapy. More prospective studies are needed in children to examine proactive monitoring and utility of TDM with newer biologics.
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Affiliation(s)
- Nicholas Carman
- CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
- Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada.
| | - David R Mack
- CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada
| | - Eric I Benchimol
- CHEO Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada
- Department of Pediatrics, University of Ottawa, Ottawa, ON, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, ON, Canada
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Day AS. Re: American Gastroenterological Association Institute Guideline on therapeutic drug monitoring in inflammatory bowel disease. Transl Pediatr 2018; 7:11-13. [PMID: 29441278 PMCID: PMC5803018 DOI: 10.21037/tp.2017.12.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Andrew S Day
- Department of Paediatrics, University of Otago (Christchurch), Christchurch, New Zealand
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van Hoeve K, Hoffman I, Vermeire S. Therapeutic drug monitoring of anti-TNF therapy in children with inflammatory bowel disease. Expert Opin Drug Saf 2017; 17:185-196. [DOI: 10.1080/14740338.2018.1413090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Karen van Hoeve
- Department of Pediatric Gastroenterology, University Hospitals Leuven, Leuven, Belgium
| | - Ilse Hoffman
- Department of Pediatric Gastroenterology, University Hospitals Leuven, Leuven, Belgium
| | - Severine Vermeire
- Department of Gastroenterology & Hepatology, University Hospitals Leuven, Leuven, Belgium
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