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Gordon M, Sinopoulou V, Akobeng AK, Sarian A, Moran GW. Infliximab for maintenance of medically-induced remission in Crohn's disease. Cochrane Database Syst Rev 2024; 2:CD012609. [PMID: 38372447 PMCID: PMC10875719 DOI: 10.1002/14651858.cd012609.pub2] [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] [Indexed: 02/20/2024]
Abstract
BACKGROUND Infliximab is a monoclonal antibody that binds and neutralises tumour necrosis factor-alpha (TNF-α) which is present in high levels in the blood serum, mucosa and stool of patients with Crohn's disease. OBJECTIVES To determine the efficacy and safety of infliximab for maintaining remission in patients with Crohn's disease. SEARCH METHODS On 31 August, 2021 and 23 June, 2023, we searched CENTRAL, Embase, MEDLINE, ClinicalTrials.gov, and WHO ICTRP. SELECTION CRITERIA Randomised controlled trials (RCTs) in which infliximab was compared to placebo or another active comparator for maintenance, remission, or response in patients with Crohn's disease. DATA COLLECTION AND ANALYSIS Pairs of review authors independently selected studies and conducted data extraction and risk of bias assessment. We expressed outcomes as risk ratios and mean differences with 95% confidence intervals. We assessed the certainty of the evidence using GRADE. Our primary outcome was clinical relapse. Secondary outcomes were loss of clinical response, endoscopic relapse, and withdrawal due to serious and adverse events. MAIN RESULTS Nine RCTs with 1257 participants were included. They were conducted between 1999 and 2022; seven RCTs included biologically-naive patients, and the remaining two included a mix of naive/not naive patients. Three studies included patients in clinical remission, five included patients with a mix of activity scores, and one study included biologic responders with active disease at baseline. All studies allowed some form of concomitant medication during their duration. One study exclusively included patients with fistulating disease. The age of the participants ranged from 18 to 69 years old. All but one single-centre RCT were multicentre RCTs. Four studies were funded by pharmaceutical companies, two had a mix of commercial and public funding, and two had public funding. Infliximab is probably superior to placebo in preventing clinical relapse in patients who have mixed levels of clinical disease activity at baseline, and are not naive to biologics (56% vs 75%, RR 0.73, 95% CI 0.63 to 0.84, NNTB = 5, moderate-certainty evidence). We cannot draw any conclusions on loss of clinical response (RR 0.59, 95% CI 0.37 to 0.96), withdrawals due to adverse events (RR 0.66, 95% CI 0.37 to 1.19), or serious adverse events (RR 0.60, 95% CI 0.36 to 1.00) because the evidence is very low certainty. Infliximab combined with purine analogues is probably superior to purine analogues for clinical relapse (12% vs 59%, RR 0.20, 95% CI 0.10 to 0.42, NNTB = 2, moderate-certainty evidence), for patients in remission, and who are not naive to biologics. We cannot draw any conclusions on withdrawals due to adverse events (RR 0.47, 95% CI 0.15 to 1.49), and serious adverse events (RR 1.19, 95% CI 0.54 to 2.64) because the evidence is very low certainty. We cannot draw any conclusions about the effects of infliximab on serious adverse events compared to purine analogues (RR 0.79, 95% CI 0.37 to 1.68) for a population in remission at baseline because the evidence is very low certainty. There was no evidence available for the outcomes of clinical relapse, loss of clinical response, and withdrawal due to adverse events. Infliximab may be equivalent to biosimilar for clinical relapse (47% vs 40% RR 1.18, 95% CI 0.82 to 1.69), and it may be slightly less effective in averting loss of clinical response (49% vs 32%, RR 1.50, 95% CI 1.01 to 2.23, low-certainty evidence), for a population with mixed/low disease activity at baseline. Infliximab may be less effective than biosimilar in averting withdrawals due to adverse events (27% vs 0%, RR 20.73, 95% CI 2.86 to 150.33, low-certainty evidence). Infliximab may be equivalent to biosimilar for serious adverse events (10% vs 10%, RR 0.99, 95% CI 0.39 to 2.50, low-certainty evidence). We cannot draw any conclusions on the effects of subcutaneous biosimilar compared with intravenous biosimilar on clinical relapse (RR 1.01, 95% CI 0.65 to 1.57), loss of clinical response (RR 0.94, 95% CI 0.70 to 1.25), and withdrawals due to adverse events (RR 0.77, 95% CI 0.30 to 1.97) for an active disease population with clinical response at baseline because the evidence is of very low certainty. We cannot draw any conclusions on the effects of infliximab compared to adalimumab on loss of clinical response (RR 0.68, 95% CI 0.29 to 1.59), withdrawals due to adverse events (RR 0.10, 95% CI 0.01 to 0.72), serious adverse events (RR 0.09, 95% CI 0.01 to 1.54) for an active disease population with clinical response at baseline because the evidence is of very low certainty. There was no evidence available for the outcome of clinical relapse. AUTHORS' CONCLUSIONS Infliximab is probably more effective in preventing clinical relapse than placebo (moderate-certainty evidence). Infliximab in combination with purine analogues is probably more effective in preventing clinical and endoscopic relapse than purine analogues alone (moderate-certainty evidence). No conclusions can be drawn regarding prevention of loss of clinical response, occurrence of withdrawals due to adverse events, or total adverse events due to very low-certainty evidence for both of these comparisons. There may be little or no difference in prevention of clinical relapse, withdrawal due to adverse events or total adverse events between infliximab and a biosimilar (low-certainty evidence). Infliximab may lead to more loss of clinical response than a biosimilar (low-certainty evidence). We were unable to draw meaningful conclusions about other comparisons and outcomes related to missing data or very low-certainty evidence due to serious concerns about imprecision and risk of bias. Further research should focus on comparisons with other active therapies for maintaining remission, as well as ensuring adequate power calculations and reporting of methods.
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Affiliation(s)
- Morris Gordon
- School of Medicine, University of Central Lancashire, Preston, UK
| | | | - Anthony K Akobeng
- Pediatric Gastroenterology, Sidra Medicine, Doha, Qatar
- Weill Cornell Medicine, Cornell University, Doha, Qatar
| | - Arni Sarian
- School of Medicine, University of Central Lancashire, Preston, UK
| | - Gordon William Moran
- National Institute of Health Research Nottingham Biomedical Research Centre, University of Nottingham and Nottingham University Hospitals, Nottingham, UK
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Chen NY, Chuang CH, Chang YC, Kao Yang YH, Chen PH, Cheng CL. Suboptimal Outcomes and Retreatment Rate of Patients With Crohn's Disease After Forced Discontinuation of Biologics: A Nationwide Population-Based Study. Clin Pharmacol Ther 2023; 114:914-921. [PMID: 37463101 DOI: 10.1002/cpt.3003] [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: 01/31/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023]
Abstract
Taiwan's National Health Insurance (NHI) program forced discontinuation of biologic use in Crohn's disease (CD) after a limited treatment duration, regardless of disease activity. This study investigated the retreatment rate and suboptimal outcomes (i.e., CD-related surgeries, hospitalizations, emergency room visits, and oral steroid flare-ups) after forced discontinuation. This retrospective cohort study was conducted using data from the NHI Database. Patients who received ≥40 weeks of biologic treatment followed by a forced discontinuation were included. The time of biologic retreatment and the cumulative incidence of suboptimal outcomes after the forced discontinuation as well as related risk factors were analyzed. Included were 215 patients (68% male). At the beginning of biologic therapy, the mean age (±SD) was 35.7 (±13.5) years, and the disease duration was 4.46 (±3.52) years. The median (interquartile range) biologic treatment duration was 57.86 (50.3-83.3) weeks. Within the first year after forced discontinuation, 67% of patients (n = 144) were retreated with a second course of biologics, and 53% of patients (n = 114) experienced at least one suboptimal outcome. The independent risk factors associated with the occurrence of suboptimal outcomes were CD-related emergency room visits and hospitalizations during biologic therapy (hazard ratio: 2.49; 95% confidence interval: 1.59-3.89). More than two-thirds of patients with CD required biological retreatment within 1 year after a forced discontinuation. The substantial proportion of patients with poor disease outcomes highlights the need to continue the biologic.
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Affiliation(s)
- Nai-Yu Chen
- Department of Pharmacy, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chiao-Hsiung Chuang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ching Chang
- Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan
| | - Yea-Huei Kao Yang
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan
| | - Peng-Hsu Chen
- Takeda Pharmaceuticals Taiwan, Ltd., Taipei City, Taiwan
| | - Ching-Lan Cheng
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan
- Department of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Buhl S, Steenholdt C, Brynskov J, Christensen KR, Dorn-Rasmussen M, Thomsen OØ, Bendtzen K, Klausen TW, Dahlerup JF, Thorsgaard N, Jahnsen J, Molazahi A, Pedersen N, Kjeldsen J, Almer S, Dahl EE, Vind I, Cannon AG, Marsal J, Sipponen T, Agnholt JS, Kievit HAL, Aure SL, Martinsen L, Meisner S, Hansen JM, Ainsworth MA. Discontinuation of Infliximab Therapy in Patients with Crohn's Disease. NEJM EVIDENCE 2022; 1:EVIDoa2200061. [PMID: 38319804 DOI: 10.1056/evidoa2200061] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
BACKGROUND: Whether infliximab therapy can be successfully discontinued after patients with Crohn’s disease have attained sustained, clinical, biochemical, and endoscopic remission is unknown. METHODS: We conducted a multicenter, randomized, double-blind, placebo-controlled withdrawal study of infliximab in patients with Crohn’s disease who were in clinical, biochemical, and endoscopic remission after standard infliximab maintenance therapy for at least 1 year. Patients were randomly assigned 1:1 to continue infliximab therapy or to receive matching placebo for 48 weeks. The primary end point was time to relapse. RESULTS: This study randomly assigned 115 patients to either the infliximab-continuation group or to the infliximab-discontinuation group. No relapses were observed among the 59 patients continuing infliximab, whereas 23 of 56 patients discontinuing infliximab experienced relapse. Time to relapse was significantly shorter among patients who discontinued infliximab than among those who continued infliximab (hazard ratio, 0.080; 95% confidence interval [CI], 0.035 to 0.186; P<0.001). At the end of the trial at week 48, relapse-free survival was 100% in the infliximab-continuation group and 51% in the infliximab-discontinuation group. The key secondary end point, time to loss of remission, was significantly shorter among patients discontinuing infliximab therapy than those continuing infliximab (hazard ratio, 0.025; 95% CI, 0.003 to 0.187; P<0.001). No unexpected adverse events were reported. CONCLUSIONS: Discontinuation of infliximab for patients with Crohn’s disease receiving long-term infliximab therapy and in clinical, biochemical, and endoscopic remission leads to a considerable risk of relapse. (Funded by the Nordic Trial Alliance [NordForsk], the Medical Fund of the Danish Regions [Regionernes Medicin og Behandlingspulje], the Danish Colitis-Crohn Association, and the A.P. Moller Foundation; ClinicalTrials.gov number, NCT01817426; EudraCT number, 2012-002702-51.)
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Affiliation(s)
- Sine Buhl
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Casper Steenholdt
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Jørn Brynskov
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | | | - Maria Dorn-Rasmussen
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Ole Østergaard Thomsen
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Klaus Bendtzen
- Institute for Inflammation Research IRR, Rigshospitalet University Hospital, Copenhagen
| | | | - Jens Frederik Dahlerup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Niels Thorsgaard
- Department of Medical Diseases, Herning Regional Hospital, Herning, Denmark
| | - Jørgen Jahnsen
- Department of Gastroenterology, Akershus University Hospital, Institute of Clinical Medicine, University of Oslo, Oslo
| | - Akbar Molazahi
- Department of Medical Diseases, Nykøbing F. Regional Hospital, Nykøbing, Denmark
| | - Natalia Pedersen
- Department of Gastroenterology, Slagelse Regional Hospital, Slagelse, Denmark
| | - Jens Kjeldsen
- Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark
| | - Sven Almer
- Inflammatory Bowel Disease Unit, Division of Gastroenterology, Karolinska University Hospital, Stockholm, Sweden
- Departement of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Eva Efsen Dahl
- Department of Gastroenterology K, Copenhagen University Hospital-Bispebjerg, Frederiksberg, Denmark
| | - Ida Vind
- Department of Gastroenterology, Copenhagen University Hospital-Amager and Hvidovre, Hvidovre, Denmark
| | | | - Jan Marsal
- Department of Gastroenterology, Skåne University Hospital, Malmö, Sweden
| | - Taina Sipponen
- Gastroenterology, Abdominal Center, Helsinki University Hospital, University of Helsinki, Helsinki
| | - Jørgen Steen Agnholt
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Synnøve Louise Aure
- Department of Gastroenterology, Akershus University Hospital, Institute of Clinical Medicine, University of Oslo, Oslo
| | - Lars Martinsen
- Department of Medical Diseases, Nykøbing F. Regional Hospital, Nykøbing, Denmark
| | - Svetlana Meisner
- Department of Gastroenterology, Slagelse Regional Hospital, Slagelse, Denmark
| | - Jane Møller Hansen
- Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark
| | - Mark Andrew Ainsworth
- Department of Gastroenterology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
- Department of Medical Gastroenterology S, Odense University Hospital, Odense, Denmark
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Chapman TP, Gomes CF, Louis E, Colombel JF, Satsangi J. De-escalation of immunomodulator and biological therapy in inflammatory bowel disease. Lancet Gastroenterol Hepatol 2020; 5:63-79. [DOI: 10.1016/s2468-1253(19)30186-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 12/11/2022]
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Sparrow MP, Melmed GY, Devlin S, Kozuch P, Raffals L, Loftus Jr EV, Rubin DT, Spiegel B, Baidoo L, Bressler B, Cheifetz A, Irving P, Jones J, Kaplan GG, Velayos F, Siegel CA. De‐escalating medical therapy in Crohn’s disease patients who are in deep remission: A RAND appropriateness panel. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/ygh2.337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Miles P. Sparrow
- The BRIDGe Group
- The Alfred Hospital Melbourne Victoria Australia
| | - Gil Y. Melmed
- The BRIDGe Group
- Cedars‐Sinai Medical Center Los Angeles California
| | - Shane Devlin
- The BRIDGe Group
- University of Calgary Calgary Alberta Canada
| | - Patricia Kozuch
- The BRIDGe Group
- Jefferson University Philadelphia Pennsylvania
| | | | | | | | | | | | - Brian Bressler
- The BRIDGe Group
- University of British Columbia Vancouver British Columbia Canada
| | - Adam Cheifetz
- The BRIDGe Group
- Beth Israel Deaconess Medical Center Boston Massachusetts
| | - Peter Irving
- The BRIDGe Group
- Guy's and St. Thomas' Hospitals London UK
| | - Jennifer Jones
- The BRIDGe Group
- Dalhousie University Halifax Nova Scotia Canada
| | | | | | - Corey A. Siegel
- The BRIDGe Group
- Dartmouth‐Hitchcock IBD Center Lebanon New Hampshire
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Otake H, Matsumoto S, Mashima H. Does long-term efficacy differ between infliximab and adalimumab after 1 year of continuous administration?: A STROBE-compliant retrospective cohort study. Medicine (Baltimore) 2017; 96:e6635. [PMID: 28422861 PMCID: PMC5406077 DOI: 10.1097/md.0000000000006635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Although biologics are important inflammatory bowel disease therapies, loss of response (LOR) remains problematic. We evaluated LOR to biologics in our Crohn disease (CD) patients receiving biologics. Of 137 biologic-treated CD patients, 68 continuously receiving the same biologic type for at least 1 year were divided into 2 groups: infliximab (IFX) (n = 39) and adalimumab (ADA) (n = 29). Clinical courses were compared at biologic introduction and at 1 year. Both groups were retrospectively analyzed for LOR at and beyond 1 year after biologic introduction (study endpoint). Patients were then divided into LOR and non-LOR groups to identify factors predicting LOR. At 1 year after biologic introduction, decreases in CD activity index were 94 ± 105 in the IFX and 102 ± 89 in the ADA group, not significantly different. Blood test data did not differ between these groups. LOR occurred in 14 IFX and 5 ADA group patients. Event-free rates at 5 years after biologic introduction were 62% in the IFX and 61% in the ADA group. Patients achieving clinical remission 1 year after biologic introduction accounted for 69% of the IFX and 90% of the ADA group, while respective rates of secondary LOR at 5 years were 32% and 26%. C-reactive protein (CRP) at biologic introduction (odds ratio [OR], 1.5; 95% confidence interval [CI], 1.04-2.06; P = .02) and age at CD onset (OR, 1.1; 95% CI, 1.01-1.20; P = .03) predicted LOR. As to IFX and ADA efficacies after 1 year of administration, there were no significant differences in event-free rates for the 5 years after biologic introduction or the secondary LOR rate. CRP at biologic introduction and age at CD onset predicted LOR.
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Clinical Use of Infliximab Trough Levels and Antibodies to Infliximab in Pediatric Patients With Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr 2017; 64:272-278. [PMID: 27149256 DOI: 10.1097/mpg.0000000000001258] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Optimizing infliximab (IFX) treatment in pediatric patients with inflammatory bowel disease (IBD) by using serum infliximab (S-IFX) trough levels and antibodies to IFX is recommended. There is need for studies assessing this strategy in clinical practice. METHODS We retrospectively identified all pediatric patients with IBD (n = 146, median age 14.8 years) treated with IFX at our tertiary referral center from 2003 to 2014. All were analyzed for IFX trough levels (S-IFX, n = 475), and IFX antibody (IFX-Ab, n = 219) titers were included. Both were analyzed using enzyme-linked immunosorbent assay. We correlated these parameters with concurrently analyzed fecal calprotectin levels and the treatment outcome. RESULTS If IFX had no efficacy, or a loss of response occurred, 40 of 64 (63%) had trough levels <2.0 mg/L, with negative IFX-Ab in 37 of 59 (63%). If the S-IFX was very low (<0.2 mg/L), 4 of 36 still had negative IFX-Ab. Concurrent azathioprine therapy did not relate to IFX-Ab. Fecal calprotectin was significantly lower in patients with clinical remission or ongoing therapy compared with those with subsequent loss of efficacy: medians 95 μg/g (33-308) and 670 μg/g (264-1473), P < 0.0001. The S-IFX median was substantially higher in patients with either remission or ongoing therapy, compared with those with no or loss of efficacy: 3.7 mg/L (1.8-5.4) and 1.2 mg/L (0.03-4.4, P = 0.01), respectively. CONCLUSIONS Measuring IFX trough levels and fecal calprotectin has a potential impact on the treatment strategies and should be included in clinical routine. Low IFX trough levels associate with increased antibodies to IFX in most, but not in all cases.
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Short article: The effect of implementation of a treatment algorithm for infliximab on remission rates and drug costs in inflammatory bowel disease patients. Eur J Gastroenterol Hepatol 2017; 29:169-173. [PMID: 27749780 DOI: 10.1097/meg.0000000000000763] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION The effective, but expensive, drug infliximab is used in patients with inflammatory bowel disease (IBD). Monitoring infliximab trough levels and anti-infliximab antibody (ATI) formation can lead to a more cost-effective use of infliximab therapy. The aim of our study was to investigate the effect of implementation of a treatment algorithm for infliximab in a single-centre IBD cohort, focussing on remission rates and drug costs. METHODS IBD patients aged 18 years or older treated with infliximab were asked to participate in this study. Remission rates were assessed using faecal calprotectin levels and a validated questionnaire. Infliximab trough levels and ATIs were determined at baseline and at the third infliximab infusion. According to the advice given by the treatment algorithm, infliximab dosage adjustments were performed at the second infliximab infusion. RESULTS Between January and December 2015 a total of 62 IBD patients in our centre were treated with infliximab, of whom 33 (53%) patients agreed to participate in this study. The number of patients in remission was 28 (85%) at baseline and there were 13 dose adaptations suggested by the treatment algorithm for the successive second infusion. Four patients possessed undetectable infliximab levels and positive ATI status at baseline. After the second infusion, there were 29 (88%) patients in remission at the third infusion. All of this resulted in an annual drug cost reduction of &OV0556;47 026 (7.4%). CONCLUSION Our developed treatment algorithm of infliximab led to optimization of infliximab therapy in IBD patients by increasing remission rates and reducing drug costs.
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Pineton de Chambrun G, Blanc P, Peyrin-Biroulet L. Current evidence supporting mucosal healing and deep remission as important treatment goals for inflammatory bowel disease. Expert Rev Gastroenterol Hepatol 2016; 10:915-27. [PMID: 27043489 DOI: 10.1586/17474124.2016.1174064] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Mucosal healing (MH) is now considered as a major treatment goal in clinical trials and clinical practice for patients with inflammatory bowel disease (IBD). MH is associated with sustained clinical remission, steroid-free remission, and reduced rates of hospitalization and surgery. There is a well-known disconnect between clinical symptoms and mucosal lesions that is more pronounced in CD. More stringent therapeutic goals have been discussed recently such as deep remission defined as clinical remission associated with MH. Recent international guidelines from the IOIBD recommended deep remission as a treatment goal in clinical practice. However there is no validated definition of deep remission in IBD. Also, the efficacy of available drugs to induce and maintain deep remission in IBD is poorly known. Finally, whether deep remission is the best way to modify the course of IBD and whether it should be achieved before considering drug de-escalation have to be formally evaluated in upcoming disease-modification trials.
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Affiliation(s)
- Guillaume Pineton de Chambrun
- a Department of Gastroenterology and Hepatology , Saint-Eloi Hospital, Montpellier University , Montpellier , France
| | - Pierre Blanc
- a Department of Gastroenterology and Hepatology , Saint-Eloi Hospital, Montpellier University , Montpellier , France
| | - Laurent Peyrin-Biroulet
- b Inserm U954 and Department of Gastroenterology , Université de Lorraine , Vandoeuvre-les-Nancy , France
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Optimizing Treatment with TNF Inhibitors in Inflammatory Bowel Disease by Monitoring Drug Levels and Antidrug Antibodies. Inflamm Bowel Dis 2016; 22:1999-2015. [PMID: 27135483 DOI: 10.1097/mib.0000000000000772] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Biological tumor necrosis factor (TNF) inhibitors have revolutionized the treatment of inflammatory bowel disease and redefined treatment goals to include mucosal healing. Clinicians are faced with challenges such as inadequate responses, treatment failures, side effects, and high drug costs. The objective is to review optimization of anti-TNF therapy by use of personalized treatment strategies based on circulating drug levels and antidrug antibodies (Abs), i.e. therapeutic drug monitoring (TDM). Furthermore, to outline TDM-related pitfalls and their prevention. METHODS Literature review. RESULTS Circulating anti-TNF drug trough level is a marker for the pharmacokinetics (PK) of TNF inhibitors. Because of a number of factors, including antidrug antibodies, PK varies between and within patients across time leading to variable clinical outcomes. Differences in intestinal inflammatory phenotype influencing the pharmacodynamic (PD) responses to TNF inhibitors also affect treatment outcomes. As an alternative to handling anti-TNF-treated patients by empiric strategies, TDM identifies underlying PK and PD-related reasons for treatment failure and aids decision making to secure optimal clinical and economic outcomes. Although promising, evidence does not the support use of TDM to counteract treatment failure in quiescent disease. Use of TDM is challenged by methodological biases, difficulties related to differentiation between PK and PD problems, and temporal biases due to lack of chronology between changes in PK versus symptomatic and objective disease activity manifestations. Biases can be accommodated by knowledgeable interpretation of results obtained by validated assays with clinically established thresholds, and by repeated assessments over time using complimentary techniques. CONCLUSIONS TDM-guided anti-TNF therapy at treatment failure has been brought from bench to bedside.
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