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Papamichael K, Noor NM, Cheifetz AS. Preactive therapeutic drug monitoring (TDM): time to redefine TDM. Scand J Gastroenterol 2024; 59:1021-1022. [PMID: 38756015 DOI: 10.1080/00365521.2024.2355505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/09/2024] [Indexed: 05/18/2024]
Affiliation(s)
- Konstantinos Papamichael
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Nurulamin M Noor
- Department of Gastroenterology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | - Adam S Cheifetz
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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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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Vermeire S, Dubinsky MC, Rabizadeh S, Panetta JC, Spencer EA, Dreesen E, D'Haens G, Dervieux T, Laharie D. Forecasted infliximab concentrations during induction predict time to remission and sustained disease control of inflammatory bowel disease. Clin Res Hepatol Gastroenterol 2024; 48:102374. [PMID: 38750934 DOI: 10.1016/j.clinre.2024.102374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 05/06/2024] [Accepted: 05/12/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Infliximab (IFX) exposure is established as a predictive factor of pharmacokinetic (PK) origin in inflammatory bowel disease (IBD), and expert consensus is to achieve adequate exposure during induction to achieve and sustain remission. METHODS We retrospectively evaluated the performance of a Bayesian PK tool in IBD patients starting IFX. Trough IFX serum levels collected immediately before the third (at week 6) and fourth (at week 14) infusions were evaluated from 307 IBD patients (median age=17 years, 50 % females, 83 % with Crohn's disease). Forecasted IFX concentration at the fourth infusion were estimated using serum IFX, antibodies to IFX, albumin and weight determined immediately before the third infusion using population PK calculator with Bayesian prior. The outcome variable was a clinical & biochemical remission status achieved (CRP levels below 3 mg/L in presence of clinical remission). Statistics consisted of Kaplan Meier analysis with calculation of Hazard ratio (HR), and logistic regression. RESULTS IFX concentration above 15 µg/mL immediately before the third infusion associated with shorter time to clinical & biochemical remission than concentration below 15 µg/mL without reaching significance (163±14 days vs 200±16 days, respectively; p=0.052). However, using PK parameters at the third infusion, forecasted IFX concentrations above 10 µg/mL immediately before the fourth infusion were significantly associated with a higher rate (HR=1.6 95 %CI: 1.1 to 2.1 p<0.01) and shorter time to remission (148±18 days vs 200±13 days p<0.01). In the presence of IFX concentration above 15 µg/mL at the third infusion, there was a significant 2.5-fold higher likelihood of sustained clinical & biochemical remission status during maintenance as compared to IFX concentrations below 15 µg/mL (p<0.01). Forecasted IFX level above 10 µg/mL at fourth infusion associated with significantly 3.9-fold higher likelihood of clinical & biochemical remission as compared to forecasted IFX concentrations below 10 µg/mL (p<0.01). CONCLUSIONS These data further support that optimized IFX concentrations during induction are associated with enhanced disease control in IBD.
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Affiliation(s)
| | | | | | | | | | | | | | | | - David Laharie
- Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France.
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Syed S, Boland BS, Bourke LT, Chen LA, Churchill L, Dobes A, Greene A, Heller C, Jayson C, Kostiuk B, Moss A, Najdawi F, Plung L, Rioux JD, Rosen MJ, Torres J, Zulqarnain F, Satsangi J. Challenges in IBD Research 2024: Precision Medicine. Inflamm Bowel Dis 2024; 30:S39-S54. [PMID: 38778628 DOI: 10.1093/ibd/izae084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Indexed: 05/25/2024]
Abstract
Precision medicine is part of 5 focus areas of the Challenges in IBD Research 2024 research document, which also includes preclinical human IBD mechanisms, environmental triggers, novel technologies, and pragmatic clinical research. Building on Challenges in IBD Research 2019, the current Challenges aims to provide a comprehensive overview of current gaps in inflammatory bowel diseases (IBDs) research and deliver actionable approaches to address them with a focus on how these gaps can lead to advancements in interception, remission, and restoration for these diseases. The document is the result of multidisciplinary input from scientists, clinicians, patients, and funders, and represents a valuable resource for patient-centric research prioritization. In particular, the precision medicine section is focused on the main research gaps in elucidating how to bring the best care to the individual patient in IBD. Research gaps were identified in biomarker discovery and validation for predicting disease progression and choosing the most appropriate treatment for each patient. Other gaps were identified in making the best use of existing patient biosamples and clinical data, developing new technologies to analyze large datasets, and overcoming regulatory and payer hurdles to enable clinical use of biomarkers. To address these gaps, the Workgroup suggests focusing on thoroughly validating existing candidate biomarkers, using best-in-class data generation and analysis tools, and establishing cross-disciplinary teams to tackle regulatory hurdles as early as possible. Altogether, the precision medicine group recognizes the importance of bringing basic scientific biomarker discovery and translating it into the clinic to help improve the lives of IBD patients.
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Affiliation(s)
- Sana Syed
- Department of Pediatrics, University of Virginia, Charlottesville, VA, USA
- Patient representative for Crohn's & Colitis Foundation, New York, NY, USA
| | - Brigid S Boland
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Lauren T Bourke
- Precision Medicine Drug Development, Early Respiratory and Immunology, AstraZeneca, Boston, MA, USA
| | - Lea Ann Chen
- Division of Gastroenterology, Department of Medicine, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Laurie Churchill
- Leona M. and Harry B. Helmsley Charitable Trust, New York, NY, USA
| | | | - Adam Greene
- Department of Pediatrics, University of Virginia, Charlottesville, VA, USA
| | | | | | | | - Alan Moss
- Crohn's & Colitis Foundation, New York, NY, USA
| | | | - Lori Plung
- Patient representative for Crohn's & Colitis Foundation, New York, NY, USA
| | - John D Rioux
- Research Center, Montreal Heart Institute, Université de Montréal, Montréal, Québec, Canada
| | - Michael J Rosen
- Division of Pediatric Gastroenterology, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Joana Torres
- Division of Gastroenterology, Hospital Beatriz Ângelo, Hospital da Luz, Lisbon, Portugal
- Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Fatima Zulqarnain
- Department of Pediatrics, University of Virginia, Charlottesville, VA, USA
| | - Jack Satsangi
- Translational Gastroenterology Unit, Experimental Medicine Division, Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
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Mould DR, Upton RN. "Getting the Dose Right"-Revisiting the Topic With Focus on Biologic Agents. Clin Pharmacol Ther 2024. [PMID: 38680029 DOI: 10.1002/cpt.3285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/14/2024] [Indexed: 05/01/2024]
Abstract
Nearly two decades after the Peck and Cross article '"Getting the dose right: facts, a blueprint, and encouragements" was published, a review of dose recommendations for biologics shows that the success in getting the dose right appears to have improved given the relatively low incidence of drug withdrawals and dosing/label changes. However, the clinical experience with monoclonal antibodies (MAbs) following approval has been less than perfect. In inflammatory diseases, the disease burden changes with time and high treatment failure rates have been reported. In addition, the use of concomitant steroids and immunosuppressant drugs with MAbs is common. These concomitant agents have their own safety issues and many immunosuppressant agents are not well-tolerated although they have been shown to reduce the incidence of anti-drug antibodies (ADA). This same complexity is seen in MAbs used in oncology as well, although with these agents the doses appear to be higher than needed, which results in high treatment costs and incidence of adverse events. Given the complexity of MAb pharmacokinetics, which makes providing a detailed description of dose options difficult, product labeling should include the options for alternative dose strategies and potentially include the use of therapeutic drug monitoring with dose individualization which have been shown to improve clinical response and reduce the incidence of ADA. So, while the recommended dosing for biologics seems improved over the issues noted 17 years ago, we still have some work to do.
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Affiliation(s)
- Diane R Mould
- Projections Research Inc, Phoenixville, Pennsylvania, USA
| | - Richard N Upton
- Projections Research Inc, Phoenixville, Pennsylvania, USA
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
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Alizadeh ER, Dervieux T, Vermeire S, Dubinsky M, D'Haens G, Laharie D, Shim A, Vaughn BP. Simulated cost-effectiveness of a novel precision-guided dosing strategy in adult patients with Crohn's disease initiating infliximab maintenance therapy. Pharmacotherapy 2024; 44:331-342. [PMID: 38576238 DOI: 10.1002/phar.2915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 04/06/2024]
Abstract
BACKGROUND Patients with Crohn's disease (CD) who lose response to biologics experience reduced quality of life (QoL) and costly hospitalizations. Precision-guided dosing (PGD) provides a comprehensive pharmacokinetic (PK) profile that allows for biologic dosing to be personalized. We analyzed the cost-effectiveness of infliximab (IFX) PGD relative to two other dose intensification strategies (DIS). METHODS We developed a hybrid (Markov and decision tree) model of patients with CD who had a clinical response to IFX induction. The analysis had a US payer perspective, a base case time horizon of 5 years, and a 4-week cycle length. There were three IFX dosing comparators: PGD; dose intensification based on symptoms, inflammatory markers, and trough IFX concentration (DIS1); and dose intensification based on symptoms alone (DIS2). Patients that failed IFX initiated ustekinumab, followed by vedolizumab, and conventional therapy. Transition probabilities for IFX were estimated from real-world clinical PK data and interventional clinical trial patient-level data. All other transition probabilities were derived from published randomized clinical trials and cost-effectiveness analyses. Utility values were sourced from previous health technology assessments. Direct costs included biologic acquisition and infusion, surgeries and procedures, conventional therapy, and lab testing. The primary outcomes were incremental cost-effectiveness ratios (ICERs). The robustness of results was assessed via one-way sensitivity, scenario, and probabilistic sensitivity analyses (PSA). RESULTS PGD was the cost-effective IFX dosing strategy with an ICER of 122,932 $ per quality-adjusted life year (QALY) relative to DIS1 and dominating DIS2. PGD had the lowest percentage (1.1%) of patients requiring a new biologic through 5 years (8.9% and 74.4% for DIS1 and DIS2, respectively). One-way sensitivity analysis demonstrated that the cost-effectiveness of PGD was most sensitive to the time between IFX doses. PSA demonstrated that joint parameter uncertainty had moderate impact on some results. CONCLUSIONS PGD provides clinical and QoL benefits by maintaining remission and avoiding IFX failure; it is the most cost-effective under conservative assumptions.
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Affiliation(s)
| | | | | | - Marla Dubinsky
- Mount Sinai Medical Center, New York City, New York, USA
| | | | - David Laharie
- Centre Hospitalier Universitaire de Bordeaux, Bordeaux, France
| | - Andrew Shim
- Prometheus Laboratories, San Diego, California, USA
| | - Byron P Vaughn
- Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolis, Minnesota, USA
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Nguyen AL, Gibson PR, Upton RN, Mould DR, Sparrow MP. Application of a Precision-Dosing Model to a Real-World Cohort of Patients on Infliximab Maintenance Therapy: Drug Usage and Cost Analysis. J Clin Pharmacol 2024; 64:399-409. [PMID: 37964618 DOI: 10.1002/jcph.2384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/12/2023] [Indexed: 11/16/2023]
Abstract
Precision-dosing models forecast infliximab doses to achieve targeted trough concentrations in patients with inflammatory bowel disease (IBD). These models have shown to reduce nonresponse and improve patient outcomes. We compared infliximab doses determined by iDOSE precision dosing with standard dosing, and the associated drug costs, in patients with IBD. In this retrospective study, patients with IBD treated with infliximab every 8 weeks at 5 mg/kg were included. An infliximab dose was named dose X if 3 previous infliximab doses, laboratory values including trough infliximab concentrations, and the patient's weight were recorded. The actual dose X was compared to an iDOSE-predicted dose X. Net drug use and costs were evaluated. A total of 174 patients-56% men; median age, 36 (interquartile range, 29-47) years; 135 with Crohn disease; and 31 with ulcerative colitis-were included, with 417 dose X recordings. Median prior infliximab therapy was 2 (0-4) years. Comparing actual dose X with predicted dose X, 52% and 32% of doses were subtherapeutic when aiming for trough concentrations of 5-10 and 3-7 μg/mL, respectively. Treatment costs increased by 102% and 29% for the 2 trough ranges, respectively. On multivariate regression analysis, subtherapeutic infliximab concentrations were associated with ulcerative colitis compared with Crohn disease (odds ratio, 9.81; 95% confidence interval, 1.28-75.40; P = .028) and predose X infliximab trough concentration [odds ratio, 0.07; 95% confidence interval, 0.03-0.15; P < .001]. Over half of maintenance infliximab drug doses were too low to achieve infliximab blood concentrations of 5 μg/mL or greater. While applying precision dosing may improve patient outcomes, drug costs could be considerably greater.
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Affiliation(s)
- Anke L Nguyen
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Health, Melbourne, Victoria, Australia
- Department of Gastroenterology, Monash Health, Melbourne, Australia
| | - Peter R Gibson
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Health, Melbourne, Victoria, Australia
| | - Richard N Upton
- Projections Research, Inc., Phoenixville, PA, USA
- University of South Australia, Adelaide, Australia
| | | | - Miles P Sparrow
- Department of Gastroenterology, Central Clinical School, Monash University and Alfred Health, Melbourne, Victoria, Australia
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Nguyen AL, Brick C, Liu D, Gibson DJ, Gibson PR, Sparrow MP. Clinical utility of C-reactive protein-to-albumin ratio in the management of patients with inflammatory bowel disease. JGH Open 2024; 8:e13059. [PMID: 38623491 PMCID: PMC11017854 DOI: 10.1002/jgh3.13059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 04/17/2024]
Abstract
Background and Aim C-reactive protein (CRP)-to-albumin ratio (CAR) is a novel score with prognostic value in inflammatory conditions. This study assessed the performance of CAR as an objective marker of disease activity and prediction of subtherapeutic infliximab trough levels in patients with inflammatory bowel disease (IBD). Methods A retrospective study was conducted on three different patient cohorts with IBD: patients who had (i) fecal calprotectin (FC) measurements; (ii) Mayo Endoscopic Scores; and (iii) infliximab trough levels available. The relative performances of CAR, albumin, and CRP were compared in predicting disease activity (based on FC or Mayo Endoscopic Score) and infliximab trough levels. Results In both the FC (n = 289) and endoscopy (n = 65) cohorts, albumin and CAR correlated with objective disease activity. CAR (area under the curve [AUC] 0.70) was only marginally better at detecting active disease, measured by FC, compared to CRP (AUC 0.68). A CAR >0.15 was able to detect Mayo 3 disease (AUC 0.83, sensitivity 81%, specificity 89%). Albumin (r = 0.38) and CAR (r = -0.42) correlated with infliximab trough levels (n = 204). The optimal CAR for detecting subtherapeutic infliximab trough levels was >0.08 (AUC 0.70, sensitivity 66%, specificity 64%). Both albumin and CAR were independent predictors of subtherapeutic infliximab trough levels but correlated poorly with infliximab trough levels longitudinally in the same patient. Conclusion CAR was only a modest discriminator of subtherapeutic infliximab levels and offers little more than CRP in detecting active disease. CAR has potential to detect severe Mayo 3 disease and could be calculated in patients admitted with suspected acute severe ulcerative colitis.
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Affiliation(s)
- Anke L Nguyen
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
- Department of GastroenterologyMonash HealthMelbourneVictoriaAustralia
| | - Claudia Brick
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - David Liu
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - David J Gibson
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Peter R Gibson
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
| | - Miles P Sparrow
- Department of Gastroenterology, Central Clinical SchoolMonash University and Alfred HealthMelbourneVictoriaAustralia
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Minar PP, Colman RJ, Zhang N, Mizuno T, Vinks AA. Precise infliximab exposure and pharmacodynamic control to achieve deep remission in paediatric Crohn's disease (REMODEL-CD): study protocol for a multicentre, open-label, pragmatic clinical trial in the USA. BMJ Open 2024; 14:e077193. [PMID: 38531570 DOI: 10.1136/bmjopen-2023-077193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/28/2024] Open
Abstract
INTRODUCTION The only biologic therapy currently approved to treat moderate to severe Crohn's disease in children (<18 years old) are those that antagonise tumour necrosis factor-alpha (anti-TNF). Therefore, it is critically important to develop novel strategies that maximise treatment effectiveness in this population. There is growing evidence that rates of sustained corticosteroid-free clinical remission, endoscopic healing and drug durability considerably improve when patients receive early anti-TNF dose optimisations guided by reactive or proactive therapeutic drug monitoring and pharmacodynamic monitoring. In response, our team has developed a personalised and scalable infliximab dosing intervention that starts with dose selection and continues throughout maintenance to optimise drug exposure. We hypothesise that a precision dosing strategy starting from induction and targeting dose-specific pharmacokinetic and pharmacodynamic endpoints throughout therapy will significantly improve outcomes compared with a conventional dosing strategy. METHODS AND ANALYSIS Conduct a clinical trial to assess rates of deep remission between Crohn's disease patients receiving infliximab with precision dosing (n=90) versus conventional care (n=90). Patients (age 6-22 years) will be recruited from 10 medical centres in the USA. Each centre has been selected to provide either precision dosing or conventional care dosing. Precision dosing includes the use of a clinical decision support tool (RoadMAB) from the start of infliximab to achieve specific (personalised) trough concentrations and specific pharmacodynamic targets (at doses 3, 4 and 6). Conventional care includes the use of a modified infliximab starting dose (5 or 7.5 mg/kg based on the pretreatment serum albumin) with a goal to achieve maintenance trough concentrations of 5-10 µg/mL. The primary endpoint is year 1 deep remission defined as a combination of clinical remission (paediatric Crohn's disease activity index<10 (child) or a Crohn's disease activity index<150 (adults)), off prednisone>8 weeks and endoscopic remission (simple endoscopic severity-Crohn's disease≤2). ETHICS AND DISSEMINATION ). The study protocol has been approved by the Cincinnati Children's Hospital Medical Centre Institutional Review Board. Study results will be disseminated in peer-reviewed journals and presented at scientific meetings. TRIAL REGISTRATION NUMBER NCT05660746.
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Affiliation(s)
- Phillip Paul Minar
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio, USA
| | - Ruben J Colman
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Nanhua Zhang
- Division of Biostatistics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Tomoyuki Mizuno
- Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio, USA
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Alexander A Vinks
- Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, Ohio, USA
- Division of Clinical Pharmacology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Desai D. Therapeutic drug monitoring in inflammatory bowel disease: A practical approach. Indian J Gastroenterol 2024; 43:93-102. [PMID: 38329599 DOI: 10.1007/s12664-024-01527-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 01/03/2024] [Indexed: 02/09/2024]
Abstract
The global burden of inflammatory bowel diseases (IBD) is estimated at 4.9 million and the global prevalence exceeds 0.3%. Multiple newer therapeutic agents have broadened the options for the therapy of IBD in the last three decades. Thiopurines, however, have retained their place as maintenance therapy in IBD, especially in resource-constrained setting. But thiopurines have narrow therapeutic range, often needing discontinuation due to side effects or lack of efficacy. Biologic agents revolutionized the treatment of IBD, but the efficacy is lost in 50% of patient after one year. These outcomes are often due to inadequate drug concentrations that may lead to the development of antibodies as well as pharmacodynamic failure. Therapeutic drug monitoring (TDM) was proposed to reduce loss of response and to optimize the therapy in patients on thiopurine and biologic therapy. TDM is based on exposure-response relationship, suggesting a positive correlation between elevated serum anti-TNF concentrations and favorable therapeutic outcomes. TDM has multiple facets. This article discusses the benefits, evidence and limitations of TDM. The practical use of TDM in clinical practice is highlighted. Newer developments in the field and their relevance in practice are discussed.
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Affiliation(s)
- Devendra Desai
- P D Hinduja Hospital, Veer Savarkar Marg, Mahim, Mumbai, 400 016, India.
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González-Lama Y, Ricart E, Carpio D, Bastida G, Ceballos D, Ginard D, Marin-Jimenez I, Menchen L, Muñoz F. Controversies in the management of anti-TNF therapy in patients with Crohn's disease: a Delphi consensus. BMJ Open Gastroenterol 2024; 11:e001246. [PMID: 38267072 PMCID: PMC10870792 DOI: 10.1136/bmjgast-2023-001246] [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: 09/04/2023] [Accepted: 10/24/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Despite research, there are still controversial areas in the management of Crohn's disease (CD). OBJECTIVE To establish practical recommendations on using anti-tumour necrosis factor (TNF) drugs in patients with moderate-to-severe CD. METHODS Clinical controversies in the management of CD using anti-TNF therapies were identified. A comprehensive literature review was performed, and a national survey was launched to examine current clinical practices when using anti-TNF therapies. Their results were discussed by expert gastroenterologists within a nominal group meeting, and a set of statements was proposed and tested in a Delphi process. RESULTS Qualitative study. The survey and Delphi process were sent to 244 CD-treating physicians (response rate: 58%). A total of 14 statements were generated. All but two achieved agreement. These statements cover: (1) use of first-line non-anti-TNF biological therapy; (2) role of HLA-DQA1*05 in daily practice; (3) attitudes in primary non-response and loss of response to anti-TNF therapy due to immunogenicity; (4) use of ustekinumab or vedolizumab if a change in action mechanism is warranted; (5) anti-TNF drug level monitoring; (6) combined therapy with an immunomodulator. CONCLUSION This document sought to pull together the best evidence, experts' opinions, and treating physicians' attitudes when using anti-TNF therapies in patients with CD.
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Affiliation(s)
- Yago González-Lama
- Gastroenterology Department, Hospital Universitario Puerta de Hierro, Majadahonda, Spain
| | - Elena Ricart
- Gastroenterology Department, CIBEREHD, Madrid, Spain
| | - Daniel Carpio
- Gastroenterology Department, Complexo Hospitalario Universitario de Pontevedra, Pontevedra, Spain
| | | | - Daniel Ceballos
- Gastroenterology Department, Hospital Universitario Doctor Negrin, Las Palmas de Gran Canaria, Spain
| | - Daniel Ginard
- Gastroenterology Department, Hospital Universitario Son Espases, Palma, Spain
| | | | - Luis Menchen
- Gastroenterology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Fernando Muñoz
- Gastroenterology Department, Hospital Universitario de Salamanca, Salamanca, Spain
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12
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Spencer EA, Dubinsky MC, Kamm MA, Chaparro M, Gionchetti P, Rizzello F, Gisbert JP, Wright EK, Schulberg JD, Hamilton AL, McGovern DPB, Dervieux T. Poor prognostic factors of pharmacokinetic origin predict outcomes in inflammatory bowel disease patients treated with anti-tumor necrosis factor-α. Front Immunol 2024; 15:1342477. [PMID: 38476237 PMCID: PMC10929708 DOI: 10.3389/fimmu.2024.1342477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/02/2024] [Indexed: 03/14/2024] Open
Abstract
Introduction We evaluated baseline Clearance of anti-tumor necrosis factors and human leukocyte antigen variant (HLA DQA1*05) in combination as poor prognostic factors (PPF) of pharmacokinetic (PK) origin impacting immune response (formation of antidrug antibodies) and disease control of inflammatory bowel disease (IBD) patients treated with infliximab or adalimumab. Methods Baseline Clearance was estimated in IBD patients before starting treatment using weight and serum albumin concentrations. HLA DQA1*05 carrier status (rs2097432 A/G or G/G variant) was measured using real time polymerase chain reaction. The outcomes consisted of immune response, clinical and biochemical remission (C-reactive protein<3 mg/L in the absence of symptoms), and endoscopic remission (SES-CD<3). Statistical analysis consisted of logistic regression and nonlinear mixed effect models. Results and discussion In 415 patients enrolled from 4 different cohorts (median age 27 [IQR: 15-43] years, 46% females), Clearance>0.326 L/day and HLA DQA1*05 carrier status were 2-fold more likely to have antidrug antibodies (OR=2.3, 95%CI: 1.7-3.4; p<0.001, and OR=1.9, 95%CI: 1.4-2.8; p<0.001, respectively). Overall, each incremental PPF of PK origin resulted in a 2-fold (OR=2.16, 95%CI: 1.7-2.7; p<0.11) [corrected] higher likelihood of antidrug antibody formation. The presence of both PPF of PK origin resulted in higher rates of antidrug antibodies (p<0.01) and lower clinical and biochemical remission (p<0.01). Each incremental increase in PPF of PK origin associated with lower likelihood of endoscopic remission (OR=0.4, 95%CI: 0.2-0.7; p<0.001). Prior biologic experience heightened the negative impact of PPF of PK origin on clinical and biochemical remission (p<0.01). Implementation of proactive therapeutic drug monitoring reduced it, particularly during maintenance and in the presence of higher drug concentrations (p<0.001). We conclude that PPF of PK origin, including both higher Clearance and carriage of HLA DQA1*05, impact outcomes in patients with IBD.
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Affiliation(s)
- Elizabeth A. Spencer
- Division of Gastroenterology, Icahn School of Medicine Mount Sinai, New York, NY, United States
| | - Marla C. Dubinsky
- Division of Gastroenterology, Icahn School of Medicine Mount Sinai, New York, NY, United States
| | - Michael A. Kamm
- St Vincent’s Hospital and The University of Melbourne, Melbourne, VIC, Australia
| | - Maria Chaparro
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Paolo Gionchetti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna Italy, Bologna, Italy
- DIMEC University of Bologna-Italy , Bologna, Italy
| | - Fernando Rizzello
- IRCCS Azienda Ospedaliero-Universitaria di Bologna Italy, Bologna, Italy
- DIMEC University of Bologna-Italy , Bologna, Italy
| | - Javier P. Gisbert
- Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Emily K. Wright
- St Vincent’s Hospital and The University of Melbourne, Melbourne, VIC, Australia
| | - Julien D. Schulberg
- St Vincent’s Hospital and The University of Melbourne, Melbourne, VIC, Australia
| | - Amy L. Hamilton
- St Vincent’s Hospital and The University of Melbourne, Melbourne, VIC, Australia
| | - Dermot P. B. McGovern
- F. Widjaja Inflammatory Bowel Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Thierry Dervieux
- Research and Development, Prometheus Laboratories, San Diego, CA, United States
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13
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Ananthakrishnan AN. Precision medicine in inflammatory bowel diseases. Intest Res 2024; 22:8-14. [PMID: 37939722 PMCID: PMC10850693 DOI: 10.5217/ir.2023.00087] [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: 07/26/2023] [Revised: 09/16/2023] [Accepted: 10/05/2023] [Indexed: 11/10/2023] Open
Abstract
Inflammatory bowel diseases comprising Crohn's disease and ulcerative colitis have emerged as global diseases. Multiple distinct therapeutic mechanisms have allowed us to increase our rates of achieving remission and reducing permanent disease-related morbidity. However, there is limited data to inform relative positioning of different therapies. This review will summarize existing literature on use of clinical decision models to inform relative efficacy of one therapeutic mechanism compared to the other given individual patient characteristics. It will also demonstrate the value of serologic, transcriptomic (from biopsies), and microbiome-based biomarkers in identifying which therapy is most likely to work for a given patient. We will review the existing gaps in the literature in this field and suggest a path forward for future studies to better inform patient care, incorporating the principles of precision medicine in the management of inflammatory bowel disease.
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Affiliation(s)
- Ashwin N. Ananthakrishnan
- Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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14
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Spencer EA, Bergstein S, Dolinger M, Pittman N, Kellar A, Dunkin D, Dubinsky MC. Single-center Experience With Upadacitinib for Adolescents With Refractory Inflammatory Bowel Disease. Inflamm Bowel Dis 2023:izad300. [PMID: 38134405 DOI: 10.1093/ibd/izad300] [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: 09/19/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Upadacitinib (UPA) is a novel selective JAK inhibitor approved for adults with ulcerative colitis (UC) and with positive phase 3 data for Crohn's disease (CD). Pediatric off-label use is common due to delays in pediatric approvals; real-world data on UPA are needed to understand the safety and effectiveness in pediatric IBD. METHODS This is a single-center retrospective case series study of adolescents (12-17 years) with inflammatory bowel disease IBD on UPA. The primary outcome was postinduction steroid-free clinical remission (SF-CR) defined as Pediatric UC Activity Index (PUCAI) or Pediatric CD Activity Index (PCDAI) ≤10. Secondary outcomes include postinduction clinical response (decrease ≥12.5 in PUCAI/PCDAI), postinduction C-reactive protein (CRP) normalization, 6-month SF-CR, and intestinal ultrasound response and remission. Adverse events were recorded through last follow-up. RESULTS Twenty patients (9 CD, 10 UC, 1 IBD-U; 55% female; median age 15 years, 90% ≥2 biologics) were treated with UPA for ≥12 weeks (median 51 [43-63] weeks). Upadacitinib was used as monotherapy in 55% and as combination with ustekinumab and vedolizumab in 35% and 10%, respectively. Week 12 SF-CR was achieved in 75% (15/20) and 80% (16/20) with CRP normalization. About 3/4 (14/19) achieved SF-CR at 6 months. Adverse event occurred in 2 patients (10%): Cytomegalovirus colitis requiring hospitalization and hyperlipidemia requiring no treatment. In the 75% with ultrasound monitoring, response and remission were achieved in 77% and 60%, respectively. CONCLUSION While awaiting pediatric registration trials, our data suggest that UPA is effective in inducing and maintaining SF-CR in adolescents with highly-refractory IBD with an acceptable safety profile.
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Affiliation(s)
- Elizabeth A Spencer
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - Suzannah Bergstein
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - Michael Dolinger
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - Nanci Pittman
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - Amelia Kellar
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - David Dunkin
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
| | - Marla C Dubinsky
- Division of Pediatric Gastroenterology and Nutrition, Department of Pediatrics Mount Sinai, Icahn School of Medicine, 17 E. 102nd Street, Fifth Floor, New York, NY, 10029, USA
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15
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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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16
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Keating PE, Hock BD, Smith SM, Chin PKL, O'Donnell JL, Barclay ML. Four-year review of New Zealand laboratory infliximab and adalimumab concentration results indicating potential for improved dosing. Intern Med J 2023; 53:2123-2127. [PMID: 37997271 DOI: 10.1111/imj.16264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/12/2023] [Indexed: 11/25/2023]
Abstract
A review of laboratory results across New Zealand for therapeutic drug monitoring (TDM) of infliximab and adalimumab concentrations and antidrug antibodies (ADAs) over 4 years was completed. Of 6591 results, the median serum concentration for infliximab was 5.7 mg/L and for adalimumab was 5.5 mg/L. Subtherapeutic drug concentrations (<7 mg/L) were measured in 54% of samples. Drug concentrations <2 mg/L were measured in 23% of samples, with ADAs detected in 51% of these. The high number of samples with subtherapeutic drug concentrations and common ADA detection is consistent with failing therapy but could also suggest that standard dosing is frequently too low for patients. These results reinforce the value of antitumour necrosis factor drug TDM in making decisions to adjust dosing or switch agents in patients taking infliximab and adalimumab.
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Affiliation(s)
- Paula E Keating
- Immunology Section, Canterbury Health Laboratories, Christchurch, New Zealand
| | - Barry D Hock
- Department of Haematology, University of Otago, Christchurch, New Zealand
| | - Stewart M Smith
- Immunology Section, Canterbury Health Laboratories, Christchurch, New Zealand
| | - Paul K L Chin
- Department of Medicine, University of Otago, Christchurch, New Zealand
- Department of Clinical Pharmacology, Christchurch Hospital, Christchurch, New Zealand
| | - John L O'Donnell
- Immunology Section, Canterbury Health Laboratories, Christchurch, New Zealand
| | - Murray L Barclay
- Department of Medicine, University of Otago, Christchurch, New Zealand
- Department of Clinical Pharmacology, Christchurch Hospital, Christchurch, New Zealand
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17
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Samuels A, Whaley KG, Minar P. Precision Dosing of Anti-TNF Therapy in Pediatric Inflammatory Bowel Disease. Curr Gastroenterol Rep 2023; 25:323-332. [PMID: 37695555 PMCID: PMC10865142 DOI: 10.1007/s11894-023-00895-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/12/2023]
Abstract
PURPOSE OF THE REVIEW This review focuses on recent advancements in anti-TNF therapeutic drug monitoring (TDM), pharmacogenetics and personalized drug selection for children with inflammatory bowel disease (IBD). RECENT FINDINGS Several real-world studies and one clinical trial in children have demonstrated that proactive TDM, targeting higher exposure concentrations (> 5 µg/mL), can improve disease remission rates and enhance durability of the anti-TNF biologics. Recent data from both adult and pediatric IBD patients have revealed an association between a genetic polymorphism (HLA-DQA1*05) and the development of auto-drug antibodies. The impact of this association on clinical outcomes, considering more routine use proactive TDM and dose optimization in children, is still under investigation. Additionally, recent studies have identified potential inflammatory signatures and biomarkers that may serve as companion diagnostics for anti-TNF biologics. The effective management of anti-TNF therapies in children with IBD requires evidence-based precision dosing strategies, including routine TDM and proactive pharmacodynamic assessments.
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Affiliation(s)
- Abigail Samuels
- Department of Medicine, University of Cincinnati College of Medicine, 3333 Burnet Avenue, Cincinnati, OH, 5229, USA
| | - Kaitlin G Whaley
- 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
| | - 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.
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18
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Dubinsky MC, Rabizadeh S, Panetta JC, Spencer EA, Everts-van der Wind A, Dervieux T. The Combination of Predictive Factors of Pharmacokinetic Origin Associates with Enhanced Disease Control during Treatment of Pediatric Crohn's Disease with Infliximab. Pharmaceutics 2023; 15:2408. [PMID: 37896168 PMCID: PMC10610097 DOI: 10.3390/pharmaceutics15102408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Infliximab (IFX) concentrations are a predictive factor (PF) of pharmacokinetic (PK) origin in the treatment of Crohn's disease (CD). We evaluated Clearance, another PF of PK origin, either alone or in combination with concentrations. They were evaluated from two cohorts, the first designed to receive standard dosing (n = 37), and the second designed to proactively target therapeutic IFX concentrations (n = 108). Concentrations were measured using homogeneous mobility shift assay. Clearance was estimated using the nonlinear mixed effects methods with Bayesian priors. C-reactive protein-based clinical remission (<3 mg/L in the absence of symptoms) was used for the disease control outcome measure. Longitudinal changes in disease control due to factors including time, IFX concentration, and Clearance were analyzed using repeated event analysis. Change in objective function value (∆OFV) was calculated to compare concentration and Clearance. The results indicated that lower baseline Clearance and proactive dosing associated with enhanced disease control during induction (p < 0.01). Higher IFX concentrations and lower Clearance measured at the second, third, and fourth infusion yielded improved disease control during maintenance (p < 0.032). During maintenance, the association with disease control was better with Clearance than with concentrations (∆OFV = -19.2; p < 0.001), and the combination of both further minimized OFV (p < 0.001) with markedly improved clinical yield in the presence of both PF of PK origin. We conclude that the combination of IFX concentration and Clearance are better predictors of therapeutic outcome compared with either one alone.
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Affiliation(s)
| | | | - John C. Panetta
- St. Jude Children’s Research Hospital, Memphis, TN 38105, USA;
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19
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Nasr A, Minar P. The Role of Therapeutic Drug Monitoring in Children. Gastroenterol Clin North Am 2023; 52:549-563. [PMID: 37543399 PMCID: PMC10865141 DOI: 10.1016/j.gtc.2023.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2023]
Abstract
The use of biologic therapies has changed the treatment landscape for children with inflammatory bowel disease. While the novel biologics have improved clinical outcomes, there remains a significant gap in achieving endoscopic remission, prolonged steroid-free remission, and drug durability. Contributing to this gap is the paucity of real-world pharmacokinetic studies in children and a failure to dose optimize therapy during induction. Emerging data from a pediatric clinical trial and several observational studies have shown that the combination of proactive therapeutic drug monitoring and achievement of early therapeutic concentrations is effective in achieving improved outcomes. The next steps will be to leverage these past studies to develop more innovative clinical trials to properly assess the safety and effectiveness of proactive therapeutic drug monitoring in children.
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Affiliation(s)
- Alexander Nasr
- Division of Pediatric Gastroenterology, Hepatology & Nutrition, Cincinnati Children's Hospital Medical Center, MLC 2010, 3333 Burnet Avenue, Cincinnati, OH 45229, USA
| | - Phillip Minar
- Division of Pediatric Gastroenterology, Hepatology & Nutrition, Cincinnati Children's Hospital Medical Center, MLC 2010, 3333 Burnet Avenue, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati School of Medicine, Cincinnati, OH, USA.
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20
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Lin S, Hannon E, Reppell M, Waring JF, Smaoui N, Pivorunas V, Guay H, Chanchlani N, Bewshea C, Bai BYH, Kennedy NA, Goodhand JR, Mill J, Ahmad T. Whole blood DNA methylation changes are associated with anti-TNF drug concentration in patients with Crohn's disease. J Crohns Colitis 2023:jjad133. [PMID: 37551994 DOI: 10.1093/ecco-jcc/jjad133] [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: 03/14/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND AND AIMS Anti-TNF treatment failure in patients with inflammatory bowel disease (IBD) is common and frequently related to low drug concentrations. In order to identify patients who may benefit from dose optimisation at the outset of anti-TNF therapy, we sought to define epigenetic biomarkers in whole blood at baseline associated with anti-TNF drug concentrations at week 14. METHODS DNA methylation from 1,104 whole blood samples from 385 patients in the Personalised Anti-TNF Therapy in Crohn's disease (PANTS) study were assessed using the Illumina EPIC Beadchip (v1.0) at baseline, weeks 14, 30 and 54. We compared DNA methylation profiles in anti-TNF-treated patients who experienced primary non-response at week 14 and if they were assessed at subsequent time points, were not in remission at week 30 or 54 (infliximab n = 99, adalimumab n = 94), with patients who responded at week 14 and when assessed at subsequent time points, were in remission at week 30 or 54 (infliximab n = 99, adalimumab n = 93). RESULTS Overall, between baseline and week 14, we observed 4,999 differentially methylated probes (DMPs) annotated to 2376 genes following anti-TNF treatment. Pathway analysis identified 108 significant gene ontology terms enriched in biological processes related to immune system processes and responses.Epigenome-wide association (EWAS) analysis identified 323 DMPs annotated to 210 genes at baseline associated with higher anti-TNF drug concentrations at week 14. Of these, 125 DMPs demonstrated shared associations with other common traits (proportion of shared CpGs compared to DMPs) including body mass index (23.2%), followed by CRP (11.5%), smoking (7.4%), alcohol consumption per day (7.1%) and IBD type (6.8%). EWAS of primary non-response to anti-TNF identified 20 DMPs that were associated with both anti-TNF drug concentration and primary non-response to anti-TNF with a strong correlation of the coefficients (Spearman's rho = -0.94, p < 0.001). CONCLUSION Baseline DNA methylation profiles may be used as a predictor for anti-TNF drug concentration at week 14 to identify patients who may benefit from dose optimisation at the outset of anti-TNF therapy.
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Affiliation(s)
- Simeng Lin
- Gastroenterology, Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Eilis Hannon
- University of Exeter Medical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | | | | | | | | | | | - Neil Chanchlani
- Gastroenterology, Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Claire Bewshea
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Benjamin Y H Bai
- Genomics of Inflammation and Immunity Group, Wellcome Sanger Institute, Hinxton, UK
- Postgraduate School of Life Sciences, University of Cambridge, Cambridge, UK
| | - Nicholas A Kennedy
- Gastroenterology, Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - James R Goodhand
- Gastroenterology, Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Jonathan Mill
- University of Exeter Medical School, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Tariq Ahmad
- Gastroenterology, Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
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21
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Spencer EA, Abbasi S, Kayal M. Barriers to optimizing inflammatory bowel disease care in the United States. Therap Adv Gastroenterol 2023; 16:17562848231169652. [PMID: 37163167 PMCID: PMC10164253 DOI: 10.1177/17562848231169652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/17/2023] [Indexed: 05/11/2023] Open
Abstract
Significant progress in the management and modification of inflammatory bowel disease (IBD) has been made; however, significant barriers to the optimization of IBD care in the United States still exist. The majority of these barriers are constructed by insurance carriers and the integration of market pressures into healthcare decision-making. In this review, we highlight the barriers to IBD care optimization within the context of the US insurance system and review current and proposed solutions.
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Affiliation(s)
- Elizabeth A. Spencer
- Division of Pediatric Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sadeea Abbasi
- Division of Gastroenterology, Cedars-Sinai Santa Monica Gastroenterology, Santa Monica, CA, USA
| | - Maia Kayal
- The Henry D. Janowitz Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place Box 1069, New York, NY 10029, USA
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22
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Desai DC, Dherai AJ, Strik A, Mould DR. Personalized Dosing of Infliximab in Patients With Inflammatory Bowel Disease Using a Bayesian Approach: A Next Step in Therapeutic Drug Monitoring. J Clin Pharmacol 2023; 63:480-489. [PMID: 36458468 DOI: 10.1002/jcph.2189] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022]
Abstract
Although biological agents have revolutionized the management of inflammatory bowel diseases (IBDs), a significant proportion of patients show primary non-response or develop secondary loss of response. Therapeutic drug monitoring (TDM) is advocated to maintain the efficacy of biologic agents. Reactive TDM can rationalize the management of primary non-response and secondary loss of response and has shown to be more cost-effective compared with empiric dose escalation. Proactive TDM is shown to increase clinical remission and the durability of the response to a biologic agent. However, the efficacy of proactive and reactive TDM has been questioned in recent studies and meta-analyses. Hence, we need a different approach to TDM, which addresses inflammatory burden, the individual patient, and disease factors. Bayesian approaches, which use population pharmacokinetic models, enable clinicians to make better use of TDM for dose adjustment. With rapid improvement in computer technology, these Bayesian model-based software packages are now available for clinical use. Bayesian dashboard systems allow clinicians to apply model-based dosing to understand an individual's pharmacokinetics and achieve a target serum drug concentration. The model is updated using previously measured drug concentrations and relevant patient factors, such as body weight, C-reactive protein, and serum albumin concentration, to maintain effective drug concentrations in the serum. Initial studies have found utility for the Bayesian approach in induction and maintenance, in adult and pediatric patients, in clinical trials, and in real-life situations for patients with IBD treated with infliximab. This needs confirmation in larger studies. This article reviews the Bayesian approach to therapeutic drug monitoring in IBD.
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Affiliation(s)
- Devendra C Desai
- Division of Gastroenterology, PD Hinduja Hospital, Veer Savarkar Marg, Mahim, Mumbai, India
| | - Alpa J Dherai
- Department of Laboratory Medicine, PD Hinduja Hospital, Veer Savarkar Marg, Mahim, Mumbai, India
| | - Anne Strik
- Department of Gastroenterology and Hepatology, Amsterdam UMC, Location AMC, Amsterdam, the Netherlands
| | - Diane R Mould
- Projections Research Inc., Phoenixville, Pennsylvania, USA
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23
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Orfanoudaki E, Foteinogiannopoulou K, Theodoraki E, Koutroubakis IE. Recent Advances in the Optimization of Anti-TNF Treatment in Patients with Inflammatory Bowel Disease. J Clin Med 2023; 12:jcm12072452. [PMID: 37048536 PMCID: PMC10095227 DOI: 10.3390/jcm12072452] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/11/2023] [Accepted: 03/16/2023] [Indexed: 04/14/2023] Open
Abstract
Despite the evolution in inflammatory bowel disease (IBD) management during the last 20 years owing to the advent of new advanced therapies, anti-TNF agents still remain the cornerstone of therapy for both Crohn's disease and ulcerative colitis. However, this does not only secure favorable outcomes for patients considering the progressive disease character and the high likelihood of primary or secondary loss of response. Therefore, trying to reach a better treatment approach and maximize the benefits anti-TNF agents offer, optimization strategies should be examined. It has been indicated that optimizing treatment with anti-TNF enhances drug efficacy and has been associated with improved disease outcomes and a complication-free disease course. From this perspective, we aim to provide an overview of currently available data and recent advances in the practices of anti-TNF treatment optimization. Special focus has been given to the role of therapeutic drug monitoring (TDM), as well as the utility of combining anti-TNF with an immunomodulator and the treat-to-target approach.
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Affiliation(s)
- Eleni Orfanoudaki
- Department of Gastroenterology, University Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Kalliopi Foteinogiannopoulou
- Department of Gastroenterology, University Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Eirini Theodoraki
- Department of Gastroenterology, University Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Ioannis E Koutroubakis
- Department of Gastroenterology, University Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
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Cheah E, Huang JG. Precision medicine in inflammatory bowel disease: Individualizing the use of biologics and small molecule therapies. World J Gastroenterol 2023; 29:1539-1550. [PMID: 36970587 PMCID: PMC10037250 DOI: 10.3748/wjg.v29.i10.1539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/17/2023] [Accepted: 02/22/2023] [Indexed: 03/14/2023] Open
Abstract
The advent of biologics and small molecules in inflammatory bowel disease (IBD) has marked a significant turning point in the prognosis of IBD, decreasing the rates of corticosteroid dependence, hospitalizations and improving overall quality of life. The introduction of biosimilars has also increased affordability and enhanced access to these otherwise costly targeted therapies. Biologics do not yet represent a complete panacea: A subset of patients do not respond to first-line anti-tumor necrosis factor (TNF)-alpha agents or may subsequently demonstrate a secondary loss of response. Patients who fail to respond to anti-TNF agents typically have a poorer response rate to second-line biologics. It is uncertain which patient would benefit from a different sequencing of biologics or even a combination of biologic agents. The introduction of newer classes of biologics and small molecules may provide alternative therapeutic targets for patients with refractory disease. This review examines the therapeutic ceiling in current treatment strategies of IBD and the potential paradigm shifts in the future.
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Affiliation(s)
- Eric Cheah
- Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital Melbourne, Parkville, VIC 3052, Australia
| | - James Guoxian Huang
- Department of Paediatrics, Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore 119228, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
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25
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Cheah E, Huang JG. Precision medicine in inflammatory bowel disease: Individualizing the use of biologics and small molecule therapies. World J Gastroenterol 2023; 29:1395-1406. [DOI: 10.3748/wjg.v29.i10.1395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2023] Open
Abstract
The advent of biologics and small molecules in inflammatory bowel disease (IBD) has marked a significant turning point in the prognosis of IBD, decreasing the rates of corticosteroid dependence, hospitalizations and improving overall quality of life. The introduction of biosimilars has also increased affordability and enhanced access to these otherwise costly targeted therapies. Biologics do not yet represent a complete panacea: A subset of patients do not respond to first-line anti-tumor necrosis factor (TNF)-alpha agents or may subsequently demonstrate a secondary loss of response. Patients who fail to respond to anti-TNF agents typically have a poorer response rate to second-line biologics. It is uncertain which patient would benefit from a different sequencing of biologics or even a combination of biologic agents. The introduction of newer classes of biologics and small molecules may provide alternative therapeutic targets for patients with refractory disease. This review examines the therapeutic ceiling in current treatment strategies of IBD and the potential paradigm shifts in the future.
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Affiliation(s)
- Eric Cheah
- Department of Gastroenterology and Clinical Nutrition, The Royal Children's Hospital Melbourne, Parkville, VIC 3052, Australia
| | - James Guoxian Huang
- Department of Paediatrics, Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore 119228, Singapore,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
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26
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Colman RJ, Mizuno T, Fukushima K, Haslam DB, Hyams JS, Boyle B, Noe JD, D’Haens GR, Limbergen JV, Chun K, Yang J, Denson LA, Ollberding NJ, Vinks AA, Minar P. Real world population pharmacokinetic study in children and young adults with inflammatory bowel disease discovers novel blood and stool microbial predictors of vedolizumab clearance. Aliment Pharmacol Ther 2023; 57:524-539. [PMID: 36314265 PMCID: PMC9931651 DOI: 10.1111/apt.17277] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 10/15/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Vedolizumab for inflammatory bowel disease (IBD) is often intensified based on distinct pharmacokinetics in children. Prior adult-specific population pharmacokinetic models have identified limited covariates of drug clearance. AIMS To establish a population pharmacokinetic model for children and young adults to identify novel covariates of drug clearance to better account for paediatric-specific inter-patient variability in vedolizumab pharmacokinetics; a key secondary exploratory aim was to identify microbial signatures of pharmacokinetic outcomes in a subset of patients. METHODS The study included data from 463 observed vedolizumab concentrations (59 peaks and 404 troughs) from 74 patients with IBD (52 with Crohn's disease and 22 with ulcerative colitis or unclassified IBD, median age 16 years). Pharmacokinetic analysis was conducted with non-linear mixed effects modelling. For the evaluation of the exposure-response relationship, clinical outcomes were evaluated by trough levels, clearance and vedolizumab exposure. Whole-genome metagenomic sequencing was conducted at baseline and week 2. RESULTS A two-compartment population pharmacokinetic model was identified with a clear correlation between CL and weight, erythrocyte sedimentation rate, and hypoalbuminemia. Trough concentrations before infusion 3 (37 μg/ml) and before infusion 4 (20 μg/ml) best predicted steroid-free clinical remission at infusion 4. Using faecal metagenomics, we identified an early (baseline and week 2) abundance of butyrate-producing species and pathways that were associated with an infusion 4 trough concentration >20 μg/ml. CONCLUSIONS This novel paediatric vedolizumab pharmacokinetic model could inform precision dosing. While additional studies are needed, an abundance of faecal butyrate producers is associated with early response to vedolizumab, suggesting that microbial analysis may be beneficial to biological selection.
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Affiliation(s)
- Ruben J. Colman
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center
| | - Tomoyuki Mizuno
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Keizo Fukushima
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center
| | - David B. Haslam
- Division of Infectious Diseases, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Jeffrey S. Hyams
- Division of Digestive Diseases, Hepatology and Nutrition, Connecticut Children’s Medical Center
| | - Brendan Boyle
- Division of Gastroenterology, Hepatology and Nutrition, Nationwide Children’s Hospital
| | - Joshua D. Noe
- Division of Gastroenterology, Hepatology and Nutrition, Children’s Hospital of Wisconsin
| | - Geert R. D’Haens
- Gastroenterology and Hepatology, Amsterdam University Medical Centers – location University of Amsterdam, Amsterdam, the Netherlands
| | - Johan Van Limbergen
- Department of Pediatric Gastroenterology and Nutrition, Amsterdam University Medical Centers – Location 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, Netherlands
| | | | | | - Lee A. Denson
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Nicholas J. Ollberding
- Department of Pediatrics, University of Cincinnati College of Medicine
- Division of Biostatistics and Epidemiology, Cincinnati Children’s Hospital Medical Center
| | - Alexander A. Vinks
- Division of Clinical Pharmacology, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Phillip Minar
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
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27
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Vuijk SA, de Ridder L. Editorial: achievements and unresolved questions in improving the pharmacokinetics of vedolizumab in adolescents with inflammatory bowel disease. Aliment Pharmacol Ther 2023; 57:565-566. [PMID: 36786458 DOI: 10.1111/apt.17321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- Stephanie A Vuijk
- Department of Paediatric Gastroenterology, Erasmus Medical Center/Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Lissy de Ridder
- Department of Paediatric Gastroenterology, Erasmus Medical Center/Sophia Children's Hospital, Rotterdam, The Netherlands
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Cheifetz AS, Casteele NV, Wang Z, Dubinsky MC, Papamichael K. Higher Postinduction Infliximab Concentrations Are Associated With Favorable Clinical Outcomes in Pediatric Crohn's Disease: A Post Hoc Analysis of the REACH Trial. Am J Gastroenterol 2023; 118:485-490. [PMID: 36624036 PMCID: PMC9991960 DOI: 10.14309/ajg.0000000000002096] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 11/02/2022] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Exposure-outcome relationship data show that higher infliximab concentrations are associated with better outcomes in patients with Crohn's disease (CD). However, most of these data were derived from adult patients on maintenance therapy. We aimed to investigate the association of infliximab concentrations during and early after induction therapy of infliximab with short-term and long-term clinical outcomes in a pediatric CD population. METHODS We conducted a post hoc analysis of the REACH trial which included pediatric patients with moderate-to-severe CD treated with infliximab (n = 103). The investigated outcomes were early clinical remission (CR) defined as a pediatric CD activity index score of ≤ 10, assessed at week 10, and long-term clinical response (LTCR) defined as a decrease from baseline in the pediatric CD activity index score of at least 15 points, with a total score of ≤ 30 and no need for drug discontinuation, assessed at weeks 30 and 54. RESULTS Based on multivariable logistic regression analysis, higher week 10 infliximab concentrations were independently associated with CR at week 10 (odds ratio: 1.54; 95% confidence interval: 1.06-2.22; P = 0.022) and LTCR at week 30 (odds ratio: 1.62; 95% confidence interval: 1.12-2.36; P = 0.010). Receiver operating characteristic analysis identified week 10 infliximab concentration thresholds of ≥7.1 μg/mL and ≥6.5 μg/mL to be associated with CR at week 10 and LTCR at week 30, respectively. DISCUSSION Higher postinduction infliximab concentrations are associated with both short-term and long-term favorable clinical outcomes in pediatric patients with CD. Tailoring dosing during induction to achieve higher infliximab exposure may lead to better outcomes in pediatric patients with CD.
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Affiliation(s)
- Adam S. Cheifetz
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth-Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Niels Vande Casteele
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Alimentiv, Inc., London, Ontario, Canada
| | | | - Marla C. Dubinsky
- Department of Pediatrics, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai New York, USA
| | - Konstantinos Papamichael
- Center for Inflammatory Bowel Diseases, Division of Gastroenterology, Beth-Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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Chung A, Carroll M, Almeida P, Petrova A, Isaac D, Mould D, Wine E, Huynh H. Early Infliximab Clearance Predicts Remission in Children with Crohn's Disease. Dig Dis Sci 2022; 68:1995-2005. [PMID: 36562887 DOI: 10.1007/s10620-022-07783-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Children with Crohn's disease have lower response rates to infliximab, lower infliximab levels, and higher infliximab clearance on weight-based dosing than adults. We hypothesize infliximab clearance is a predictive of later outcomes on infliximab in children with Crohn's disease. METHODS In this single-center retrospective study, data were collected from charts on diagnosis, anthropometry, routine labs, infliximab therapeutic drug monitoring, infliximab dosing, disease activity, and other treatments. With these data we generated a population pharmacokinetic model using non-linear mixed effects modeling and calculated infliximab clearance for each patient over time. Patients were classified as in remission, responder-only or non-responder at 5, 10 and 16 months. Regression and ROC analyses were used to assess for early predictors of remission and response to infliximab. RESULTS Eighty-five subjects were included, with a median follow-up of 22.3 months (IQR 10.1-36.8). Our pharmacokinetic model showed infliximab clearance was positively associated with CRP and weight, while negatively associated with albumin. In regression analyses, early infliximab clearance was the only significant, consistent predictor of remission. A 0.1 L/day increase in infliximab clearance predicted remission with an OR between 0.179 and 0.426. Differences in dosing did not account for differences in outcome. Infliximab clearance alone had moderate predictive accuracy of remission, with an AUC between 0.682 and 0.738. CONCLUSIONS Early infliximab clearance is strongly associated with remission in children with Crohn's disease. It may be useful as a marker of response in proactive therapeutic drug monitoring to guide early dose optimization and/or changes in treatment for betterment of long-term outcomes.
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Affiliation(s)
- Aaron Chung
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | - Matthew Carroll
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | - Patricia Almeida
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | - Alexandra Petrova
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | - Daniela Isaac
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | | | - Eytan Wine
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada
| | - Hien Huynh
- Division of Pediatric Gastroenterology, Faculty of Medicine, University of Alberta, Edmonton, Canada. .,Division of Pediatric GI Nutrition, Department of Pediatrics, University of Alberta Faculty of Medicine & Dentistry, ECHA 4-579 11405 87 Ave NW, Edmonton, AB, T6G1C9, Canada.
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30
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Megna BW, Vaughn BP. Therapeutic Drug Monitoring in Practice for Inflammatory Bowel Disease. Curr Gastroenterol Rep 2022; 24:191-200. [PMID: 36459387 DOI: 10.1007/s11894-022-00854-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 06/17/2023]
Abstract
PURPOSE OF REVIEW To outline the development, rationale, and practical use of therapeutic drug monitoring in patients with inflammatory bowel disease. RECENT FINDINGS Therapeutic drug monitoring is traditionally discussed in terms of a proactive or reactive approach. However, these terms are not always consistently defined and can be confusing when translating research to clinical practice. Personalized approaches incorporating clinical context and precision medicine are emerging. Personalized therapeutic drug monitoring combines a structured and proactive strategy for monitoring biologic concentrations as well as identification of antidrug antibody development or subtherapeutic dosing in the setting of loss of response. Optimizing biologic therapy can improve outcomes and avoid loss of response. Why, when, and how we measure drug troughs and anti-drug antibodies is a moving target, though what is known is that the appropriate and evidence-based use of this practice prevents adverse events and improves outcomes in patients with inflammatory bowel disease.
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Affiliation(s)
- Bryant W Megna
- Division of Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, MN, USA.
| | - Byron P Vaughn
- Division of Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, MN, USA
- Inflammatory Bowel Disease Program, University of Minnesota, Minneapolis, MN, USA
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32
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Ulcerative Colitis and Acute Severe Ulcerative Colitis Patients Are Overlooked in Infliximab Population Pharmacokinetic Models: Results from a Comprehensive Review. Pharmaceutics 2022; 14:pharmaceutics14102095. [PMID: 36297530 PMCID: PMC9610912 DOI: 10.3390/pharmaceutics14102095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/07/2022] [Accepted: 09/15/2022] [Indexed: 11/18/2022] Open
Abstract
Ulcerative colitis (UC) is part of the inflammatory bowels diseases, and moderate to severe UC patients can be treated with anti-tumour necrosis α monoclonal antibodies, including infliximab (IFX). Even though treatment of UC patients by IFX has been in place for over a decade, many gaps in modelling of IFX PK in this population remain. This is even more true for acute severe UC (ASUC) patients for which early prediction of IFX pharmacokinetic (PK) could highly improve treatment outcome. Thus, this review aims to compile and analyse published population PK models of IFX in UC and ASUC patients, and to assess the current knowledge on disease activity impact on IFX PK. For this, a semi-systematic literature search was conducted, from which 26 publications including a population PK model analysis of UC patients receiving IFX therapy were selected. Amongst those, only four developed a model specifically for UC patients, and only three populations included severe UC patients. Investigations of disease activity impact on PK were reported in only 4 of the 14 models selected. In addition, the lack of reported model codes and assessment of predictive performance make the use of published models in a clinical setting challenging. Thus, more comprehensive investigation of PK in UC and ASUC is needed as well as more adequate reports on developed models and their evaluation in order to apply them in a clinical setting.
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33
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Gottlieb ZS, Dolinger M, Kayal M, Rao BB, Bhattacharya A, Dubinsky MC, Ungaro RC. Clinical Challenge: Proactive Precise Management of Active Ulcerative Colitis During Pregnancy-Advantages of Point-of-Care Intestinal Ultrasound and Therapeutic Drug Monitoring. Dig Dis Sci 2022; 67:3557-3561. [PMID: 35579797 DOI: 10.1007/s10620-022-07532-6] [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] [Accepted: 04/19/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Zoë S Gottlieb
- Division of Gastroenterology, Department of Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA.
| | - Michael Dolinger
- Departments of Pediatrics and Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
| | - Maia Kayal
- Division of Gastroenterology, Department of Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
| | - Bhavana Bhagya Rao
- Division of Gastroenterology, Department of Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
| | - Abhik Bhattacharya
- Division of Gastroenterology, Department of Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
| | - Marla C Dubinsky
- Departments of Pediatrics and Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
| | - Ryan C Ungaro
- Division of Gastroenterology, Department of Medicine, Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine, Mount Sinai, New York, NY, USA
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34
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Grossberg LB, Cheifetz AS, Papamichael K. Therapeutic Drug Monitoring of Biologics in Crohn's Disease. Gastroenterol Clin North Am 2022; 51:299-317. [PMID: 35595416 DOI: 10.1016/j.gtc.2021.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Reactive therapeutic drug monitoring (TDM) is considered the standard of care for optimizing biologics in inflammatory bowel disease (IBD) including Crohn's disease (CD). Preliminary data show that proactive TDM is associated with positive outcomes in IBD and can be also used to efficiently guide therapeutic decisions in specific clinical scenarios. Higher biological drug concentrations are associated with favorable therapeutic outcomes in specific IBD populations or phenotypes including pediatric CD, perianal fistulizing CD, small bowel CD, and following an ileocolonic resection for CD. Future perspectives of TDM include the use of rapid testing, pharmacogenomics, and pharmacokinetic dashboards toward individualized therapy.
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Affiliation(s)
- Laurie B Grossberg
- Division of Gastroenterology, Center for Inflammatory Bowel Diseases, Beth-Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA.
| | - Adam S Cheifetz
- Division of Gastroenterology, Center for Inflammatory Bowel Diseases, Beth-Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
| | - Konstantinos Papamichael
- Division of Gastroenterology, Center for Inflammatory Bowel Diseases, Beth-Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
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35
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Alsoud D, Verstockt B, Vermeire S. Letter: immunogenicity is not the root cause for loss of response to anti-TNF agents in patients with IBD in TDM era. Aliment Pharmacol Ther 2022; 55:885-886. [PMID: 35315101 DOI: 10.1111/apt.16797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Dahham Alsoud
- KU Leuven, Department of Chronic Diseases, Metabolism and Ageing, Translational Research in Gastrointestinal disorders (TARGID) - IBD Unit, Leuven, Belgium
| | - Bram Verstockt
- KU Leuven, Department of Chronic Diseases, Metabolism and Ageing, Translational Research in Gastrointestinal disorders (TARGID) - IBD Unit, Leuven, Belgium.,Department of Gastroenterology and Hepatology, KU Leuven, University Hospitals Leuven, Leuven, Belgium
| | - Séverine Vermeire
- KU Leuven, Department of Chronic Diseases, Metabolism and Ageing, Translational Research in Gastrointestinal disorders (TARGID) - IBD Unit, Leuven, Belgium.,Department of Gastroenterology and Hepatology, KU Leuven, University Hospitals Leuven, Leuven, Belgium
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36
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Papamichael K, Jairath V, Zou G, Cohen B, Ritter T, Sands B, Siegel C, Valentine J, Smith M, Vande Casteele N, Dubinsky M, Cheifetz A. Proactive infliximab optimisation using a pharmacokinetic dashboard versus standard of care in patients with Crohn's disease: study protocol for a randomised, controlled, multicentre, open-label study (the OPTIMIZE trial). BMJ Open 2022; 12:e057656. [PMID: 35365535 PMCID: PMC8977745 DOI: 10.1136/bmjopen-2021-057656] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Preliminary data indicates that proactive therapeutic drug monitoring (TDM) is associated with better outcomes compared with empiric dose escalation and/or reactive TDM, and that pharmacokinetic (PK) modelling can improve the precision of individual dosing schedules in Crohn's disease (CD). However, there are no data regarding the utility of a proactive TDM combined PK-dashboard starting early during the induction phase, when disease activity and drug clearance are greatest. The aim of this randomised, controlled, multicentre, open-label trial is to evaluate the efficacy and safety of a proactive TDM combined PK dashboard-driven infliximab dosing compared with standard of care (SOC) dosing in patients with moderately to severely active CD. METHODS AND ANALYSIS Eligible adolescent and adult (aged ≥16-80 years) patients with moderately to severely active CD will be randomised 1:1 to receive either infliximab monotherapy with proactive TDM using a PK dashboard (iDose, Projections Research) or SOC infliximab therapy, with or without a concomitant immunomodulator (IMM) (thiopurine or methotrexate) at the discretion of the investigator. The primary outcome of the study is the proportion of subjects with sustained corticosteroid-free clinical remission and no need for rescue therapy from week 14 throughout week 52. Rescue therapy is defined as any IFX dose escalation other than what is forecasted by iDose either done empirically or based on reactive TDM; addition of an IMM after week 2; reintroduction of corticosteroids after initial tapering; switch to another biologic or need for CD-related surgery. The secondary outcomes will include both efficacy and safety end points, such as endoscopic and biological remission, durability of response and CD-related surgery and hospitalisation. ETHICS AND DISSEMINATION The protocol has been approved by the Institutional Review Board Committee of the Beth Israel Deaconess Medical Center (IRB#:2021P000391). Results will be disseminated in peer-reviewed journals and presented at scientific meetings. TRIAL REGISTRATION NUMBER NCT04835506.
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Affiliation(s)
| | - Vipul Jairath
- Alimentiv Inc, London, Ontario, Canada
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
| | - Guangyong Zou
- Alimentiv Inc, London, Ontario, Canada
- Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada
| | - Benjamin Cohen
- Department of Gastroenterology, Hepatology & Nutrition, Cleveland Clinic, Cleveland, Ohio, USA
| | | | - Bruce Sands
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Corey Siegel
- Section of Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - John Valentine
- Division of Gastroenterology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | | | - Niels Vande Casteele
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Marla Dubinsky
- Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Adam Cheifetz
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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