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Gordon C, Chee D, Hamilton B, Heerasing NM, Hendy P, Chanchlani N, Lin S, Wesley E, Daniels IR, Silva N, Osborne M, Kennedy NA, Goodhand JR, Ahmad T. Root-cause analyses of missed opportunities for the diagnosis of colorectal cancer in patients with inflammatory bowel disease. Aliment Pharmacol Ther 2021; 53:291-301. [PMID: 33159472 PMCID: PMC7821143 DOI: 10.1111/apt.16155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/20/2020] [Accepted: 10/21/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Colonoscopic surveillance in patients with inflammatory bowel disease (IBD) leads to earlier detection of colorectal cancer (CRC) and reduces CRC-associated mortality. However, it is limited by poor adherence in practice. AIM To identify missed opportunities to detect IBD-associated CRC at our hospital METHODS: We undertook root-cause analyses to identify patients with missed opportunities to diagnose IBD-associated CRC. We matched patients with IBD-associated CRC to patients with CRC in the general population to identify differences in staging at diagnosis and clinical outcomes. RESULTS Compared with the general population, patients with IBD were at increased risk of developing CRC (odds ratio 2.7 [95% CI 1.6-3.9], P < 0.001). The mean incidence of IBD-associated CRC between 1998 and 2019 was 165.4 (IQR 130.4-199.4) per 100 000 patients and has not changed over the last 20 years. Seventy-eight patients had IBD-associated CRC. Forty-two (54%) patients were eligible for CRC surveillance: 12% (5/42) and 10% (4/42) patients were diagnosed with CRC at an appropriately timed or overdue surveillance colonoscopy, respectively. Interval cancers occurred in 14% (6/42) of patients; 64% (27/42) of patients had a missed opportunity for colonoscopic surveillance where root-cause analyses demonstrated that 10/27 (37%) patients known to secondary care had not been offered surveillance. Four (15%) patients had a delayed diagnosis of CRC due to failure to account for previous colonoscopic findings. Seventeen (63%) patients were managed by primary care including seven patients discharged from secondary care without a surveillance plan. Matched case-control analysis did not show significant differences in cancer staging or 10-year survival outcomes. CONCLUSION The incidence of IBD-associated CRC has remained static. Two-thirds of patients eligible for colonoscopic surveillance had missed opportunities to diagnose CRC. Surveillance programmes without comprehensive and fully integrated recall systems across primary and secondary care are set to fail.
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Affiliation(s)
- Claire Gordon
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Desmond Chee
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Ben Hamilton
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Neel M. Heerasing
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Peter Hendy
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | | | - Simeng Lin
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Emma Wesley
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Ian R. Daniels
- Department of Colorectal SurgeryRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Nishanthi Silva
- Department of OncologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Melanie Osborne
- Department of OncologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Nicholas A. Kennedy
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - James R. Goodhand
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
| | - Tariq Ahmad
- IBD Pharmacogenetics GroupUniversity of ExeterExeterUK
- Department of GastroenterologyRoyal Devon and Exeter Hospital NHS Foundation TrustExeterUK
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2
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Lin S, Green HD, Hendy P, Heerasing NM, Chanchlani N, Hamilton B, Walker GJ, Heap GA, Hobart J, Martin RJ, Coles AJ, Silverberg MS, Irving PM, Chung-Faye G, Silber E, Cummings JRF, Lytvyak E, Andersen V, Wood AR, Tyrrell J, Beaumont RN, Weedon MN, Kennedy NA, Spiers A, Harrower T, Goodhand JR, Ahmad T. Clinical Features and Genetic Risk of Demyelination Following Anti-TNF Treatment. J Crohns Colitis 2020; 14:1653-1661. [PMID: 32497177 DOI: 10.1093/ecco-jcc/jjaa104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Anti-TNF exposure has been linked to demyelination events. We sought to describe the clinical features of demyelination events following anti-TNF treatment and to test whether affected patients were genetically predisposed to multiple sclerosis [MS]. METHODS We conducted a case-control study to describe the clinical features of demyelination events following anti-TNF exposure. We compared genetic risk scores [GRS], calculated using carriage of 43 susceptibility loci for MS, in 48 cases with 1219 patients exposed to anti-TNF who did not develop demyelination. RESULTS Overall, 39 [74%] cases were female. The median age [range] of patients at time of demyelination was 41.5 years [20.7-63.2]. The median duration of anti-TNF treatment was 21.3 months [0.5-99.4] and 19 [36%] patients were receiving concomitant immunomodulators. Most patients had central demyelination affecting the brain, spinal cord, or both. Complete recovery was reported in 12 [23%] patients after a median time of 6.8 months [0.1-28.7]. After 33.0 months of follow-up, partial recovery was observed in 29 [55%] patients, relapsing and remitting episodes in nine [17%], progressive symptoms in three [6%]: two [4%] patients were diagnosed with MS. There was no significant difference between MS GRS scores in cases (mean -3.5 × 10-4, standard deviation [SD] 0.0039) and controls [mean -1.1 × 10-3, SD 0.0042] [p = 0.23]. CONCLUSIONS Patients who experienced demyelination events following anti-TNF exposure were more likely female, less frequently treated with an immunomodulator, and had a similar genetic risk to anti-TNF exposed controls who did not experience demyelination events. Large prospective studies with pre-treatment neuroimaging are required to identify genetic susceptibility loci.
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Affiliation(s)
- Simeng Lin
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Harry D Green
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK
| | - Peter Hendy
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Neel M Heerasing
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Neil Chanchlani
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK
| | | | - Gareth J Walker
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Graham A Heap
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Jeremy Hobart
- Department of Neurology, University Hospitals Plymouth, Plymouth, UK
| | - Roswell J Martin
- Department of Neurology, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
| | - Alasdair J Coles
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Mark S Silverberg
- Mount Sinai Hospital Inflammatory Bowel Disease Centre, University of Toronto, Toronto, ON, Canada
| | - Peter M Irving
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Guy Chung-Faye
- Department of Gastroenterology, King's College Hospital, London, UK
| | - Eli Silber
- Department of Neurology, King's College Hospital, London, UK
| | - J R Fraser Cummings
- Department of Gastroenterology, Southampton General Hospital, Southampton, UK
| | - Ellina Lytvyak
- Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Vibeke Andersen
- Focussed Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Soenderjylland, University Hospital of Southern Denmark, Odense, Denmark
| | | | | | | | | | - Nicholas A Kennedy
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Alexander Spiers
- Department of Radiology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Timothy Harrower
- Department of Neurology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - James R Goodhand
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
| | - Tariq Ahmad
- IBD Pharmacogenetics Group, University of Exeter, Exeter, UK.,Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, UK
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3
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Walker GJ, Chanchlani N, Thomas A, Lin S, Moore L, Heerasing NM, Hendy P, Abdelrahim M, Mole S, Perry MH, Mcdonald TJ, Bewshea CM, Hart JW, Russell RK, Ahmad T, Goodhand JR, Kennedy NA. Primary care faecal calprotectin testing in children with suspected inflammatory bowel disease: a diagnostic accuracy study. Arch Dis Child 2020; 105:957-963. [PMID: 32424002 DOI: 10.1136/archdischild-2019-317823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 03/04/2020] [Accepted: 04/03/2020] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To determine the diagnostic accuracy of calprotectin to diagnose inflammatory bowel disease (IBD) in children in whom general practitioners (GPs) suspected IBD. DESIGN Prospective observational cohort study of a new calprotectin-based primary care referral pathway. SETTING 48 GP practices and gastroenterology secondary care services at the Royal Devon and Exeter NHS Foundation Trust in the South-West of England, UK. PATIENTS 195 children aged between 4 and 18 years referred on the pathway between January 2014 and August 2017 for investigation of gastrointestinal symptoms were included. INTERVENTIONS Primary-care-driven faecal calprotectin testing. Primary and secondary care records over 12 months from the point of calprotectin testing were used as the reference standard. MAIN OUTCOME MEASURES Diagnostic accuracy of calprotectin testing to detect IBD. RESULTS 7% (13/195) tested patients were diagnosed with IBD. Using our prespecified cut-off of 100 µg/g, calprotectin had a diagnostic accuracy of 91% (95% CI 86% to 95%) with a sensitivity for distinguishing IBD from non-IBD of 100% (95% CI 75% to 100%), a specificity of 91% (95% CI 85% to 94%), a positive predictive value of 43% (95% CI 25% to 63%) and a negative predictive value of 100% (95% CI 98% to 100%). Calprotectin testing had no effect on the time to diagnosis, but a negative test contributed to saved referrals and was associated with fewer diagnostic tests in secondary care. CONCLUSIONS Calprotectin testing of children with suspected IBD in primary care accurately distinguishes IBD from a functional gut disorder, reduces secondary care referrals and associated diagnostic healthcare utilisation.
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Affiliation(s)
- Gareth J Walker
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - Neil Chanchlani
- Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK.,Paediatrics, Royal Devon and Exeter Hospital, Exeter, UK
| | - Amanda Thomas
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - Simeng Lin
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - Lucy Moore
- The College of Medicine & Health, University of Exeter, Exeter, UK
| | - Neel M Heerasing
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - Peter Hendy
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | | | - Sean Mole
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK
| | - Mandy H Perry
- Biochemistry, Royal Devon and Exeter Hospital, Exeter, UK
| | - Timothy J Mcdonald
- The College of Medicine & Health, University of Exeter, Exeter, UK.,Biochemistry, Royal Devon and Exeter Hospital, Exeter, UK
| | - Claire M Bewshea
- Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - James W Hart
- Paediatrics, Royal Devon and Exeter Hospital, Exeter, UK
| | - Richard K Russell
- Paediatric Gastroenterology, The Hospital For Sick Children, Edinburgh, UK
| | - Tariq Ahmad
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - James R Goodhand
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK.,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
| | - Nicholas A Kennedy
- Gastroenterology, Royal Devon and Exeter Hospital, Exeter, UK .,Exeter IBD Pharmacogenetics, University of Exeter Medical School, Exeter, UK
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4
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Kennedy NA, Heap GA, Green HD, Hamilton B, Bewshea C, Walker GJ, Thomas A, Nice R, Perry MH, Bouri S, Chanchlani N, Heerasing NM, Hendy P, Lin S, Gaya DR, Cummings JRF, Selinger CP, Lees CW, Hart AL, Parkes M, Sebastian S, Mansfield JC, Irving PM, Lindsay J, Russell RK, McDonald TJ, McGovern D, Goodhand JR, Ahmad T. Predictors of anti-TNF treatment failure in anti-TNF-naive patients with active luminal Crohn's disease: a prospective, multicentre, cohort study. Lancet Gastroenterol Hepatol 2019; 4:341-353. [PMID: 30824404 DOI: 10.1016/s2468-1253(19)30012-3] [Citation(s) in RCA: 373] [Impact Index Per Article: 74.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 12/13/2018] [Accepted: 12/18/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Anti-TNF drugs are effective treatments for the management of Crohn's disease but treatment failure is common. We aimed to identify clinical and pharmacokinetic factors that predict primary non-response at week 14 after starting treatment, non-remission at week 54, and adverse events leading to drug withdrawal. METHODS The personalised anti-TNF therapy in Crohn's disease study (PANTS) is a prospective observational UK-wide study. We enrolled anti-TNF-naive patients (aged ≥6 years) with active luminal Crohn's disease at the time of first exposure to infliximab or adalimumab between March 7, 2013, and July 15, 2016. Patients were evaluated for 12 months or until drug withdrawal. Demographic data, smoking status, age at diagnosis, disease duration, location, and behaviour, previous medical and drug history, and previous Crohn's disease-related surgeries were recorded at baseline. At every visit, disease activity score, weight, therapy, and adverse events were recorded; drug and total anti-drug antibody concentrations were also measured. Treatment failure endpoints were primary non-response at week 14, non-remission at week 54, and adverse events leading to drug withdrawal. We used regression analyses to identify which factors were associated with treatment failure. FINDINGS We enrolled 955 patients treated with infliximab (753 with originator; 202 with biosimilar) and 655 treated with adalimumab. Primary non-response occurred in 295 (23·8%, 95% CI 21·4-26·2) of 1241 patients who were assessable at week 14. Non-remission at week 54 occurred in 764 (63·1%, 60·3-65·8) of 1211 patients who were assessable, and adverse events curtailed treatment in 126 (7·8%, 6·6-9·2) of 1610 patients. In multivariable analysis, the only factor independently associated with primary non-response was low drug concentration at week 14 (infliximab: odds ratio 0·35 [95% CI 0·20-0·62], p=0·00038; adalimumab: 0·13 [0·06-0·28], p<0·0001); the optimal week 14 drug concentrations associated with remission at both week 14 and week 54 were 7 mg/L for infliximab and 12 mg/L for adalimumab. Continuing standard dosing regimens after primary non-response was rarely helpful; only 14 (12·4% [95% CI 6·9-19·9]) of 113 patients entered remission by week 54. Similarly, week 14 drug concentration was also independently associated with non-remission at week 54 (0·29 [0·16-0·52] for infliximab; 0·03 [0·01-0·12] for adalimumab; p<0·0001 for both). The proportion of patients who developed anti-drug antibodies (immunogenicity) was 62·8% (95% CI 59·0-66·3) for infliximab and 28·5% (24·0-32·7) for adalimumab. For both drugs, suboptimal week 14 drug concentrations predicted immunogenicity, and the development of anti-drug antibodies predicted subsequent low drug concentrations. Combination immunomodulator (thiopurine or methotrexate) therapy mitigated the risk of developing anti-drug antibodies (hazard ratio 0·39 [95% CI 0·32-0·46] for infliximab; 0·44 [0·31-0·64] for adalimumab; p<0·0001 for both). For infliximab, multivariable analysis of immunododulator use, and week 14 drug and anti-drug antibody concentrations showed an independent effect of immunomodulator use on week 54 non-remission (odds ratio 0·56 [95% CI 0·38-0·83], p=0·004). INTERPRETATION Anti-TNF treatment failure is common and is predicted by low drug concentrations, mediated in part by immunogenicity. Clinical trials are required to investigate whether personalised induction regimens and treatment-to-target dose intensification improve outcomes. FUNDING Guts UK, Crohn's and Colitis UK, Cure Crohn's Colitis, AbbVie, Merck Sharp and Dohme, Napp Pharmaceuticals, Pfizer, and Celltrion.
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Affiliation(s)
- Nicholas A Kennedy
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK; Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK; Institute of Genetic and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Graham A Heap
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Harry D Green
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Benjamin Hamilton
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Claire Bewshea
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Gareth J Walker
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Amanda Thomas
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Rachel Nice
- Department of Blood Science, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Mandy H Perry
- Department of Blood Science, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Sonia Bouri
- Department of Gastroenterology, St Mark's Hospital, London North West Healthcare NHS Trust, Harrow, UK
| | - Neil Chanchlani
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Neel M Heerasing
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Peter Hendy
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Simeng Lin
- Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Daniel R Gaya
- Department of Gastroenterology, Glasgow Royal Infirmary, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - J R Fraser Cummings
- Department of Gastroenterology, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Faculty of Experimental Medicine, University of Southampton, Southampton, UK
| | - Christian P Selinger
- Leeds Gastroenterology Institute, Leeds Teaching Hospitals NHS Trust, St James University Hospital, Leeds, UK
| | - Charlie W Lees
- Institute of Genetic and Molecular Medicine, University of Edinburgh, Edinburgh, UK; Department of Gastroenterology, Western General Hospital, NHS Lothian, Edinburgh, UK
| | - Ailsa L Hart
- Department of Gastroenterology, St Mark's Hospital, London North West Healthcare NHS Trust, Harrow, UK
| | - Miles Parkes
- Department of Gastroenterology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Shaji Sebastian
- Gastroenterology and Hepatology, Hull and East Yorkshire Hospitals NHS Trust, Hull, UK
| | - John C Mansfield
- Department of Gastroenterology, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Peter M Irving
- Department of Gastroenterology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - James Lindsay
- Department of Gastroenterology, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Richard K Russell
- Department of Paediatric Gastroenterology, Royal Hospital for Children UK, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - Timothy J McDonald
- Department of Blood Science, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK
| | - Dermot McGovern
- F Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - James R Goodhand
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK; Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK
| | - Tariq Ahmad
- Department of Gastroenterology, Royal Devon and Exeter Hospital National Health Service (NHS) Foundation Trust, Exeter, UK; Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter, Exeter, UK.
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5
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Walker GJ, Harrison JW, Heap GA, Voskuil MD, Andersen V, Anderson CA, Ananthakrishnan AN, Barrett JC, Beaugerie L, Bewshea CM, Cole AT, Cummings FR, Daly MJ, Ellul P, Fedorak RN, Festen EAM, Florin TH, Gaya DR, Halfvarson J, Hart AL, Heerasing NM, Hendy P, Irving PM, Jones SE, Koskela J, Lindsay JO, Mansfield JC, McGovern D, Parkes M, Pollok RCG, Ramakrishnan S, Rampton DS, Rivas MA, Russell RK, Schultz M, Sebastian S, Seksik P, Singh A, So K, Sokol H, Subramaniam K, Todd A, Annese V, Weersma RK, Xavier R, Ward R, Weedon MN, Goodhand JR, Kennedy NA, Ahmad T. Association of Genetic Variants in NUDT15 With Thiopurine-Induced Myelosuppression in Patients With Inflammatory Bowel Disease. JAMA 2019; 321:773-785. [PMID: 30806694 PMCID: PMC6439872 DOI: 10.1001/jama.2019.0709] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
IMPORTANCE Use of thiopurines may be limited by myelosuppression. TPMT pharmacogenetic testing identifies only 25% of at-risk patients of European ancestry. Among patients of East Asian ancestry, NUDT15 variants are associated with thiopurine-induced myelosuppression (TIM). OBJECTIVE To identify genetic variants associated with TIM among patients of European ancestry with inflammatory bowel disease (IBD). DESIGN, SETTING, AND PARTICIPANTS Case-control study of 491 patients affected by TIM and 679 thiopurine-tolerant unaffected patients who were recruited from 89 international sites between March 2012 and November 2015. Genome-wide association studies (GWAS) and exome-wide association studies (EWAS) were conducted in patients of European ancestry. The replication cohort comprised 73 patients affected by TIM and 840 thiopurine-tolerant unaffected patients. EXPOSURES Genetic variants associated with TIM. MAIN OUTCOMES AND MEASURES Thiopurine-induced myelosuppression, defined as a decline in absolute white blood cell count to 2.5 × 109/L or less or a decline in absolute neutrophil cell count to 1.0 × 109/L or less leading to a dose reduction or drug withdrawal. RESULTS Among 1077 patients (398 affected and 679 unaffected; median age at IBD diagnosis, 31.0 years [interquartile range, 21.2 to 44.1 years]; 540 [50%] women; 602 [56%] diagnosed as having Crohn disease), 919 (311 affected and 608 unaffected) were included in the GWAS analysis and 961 (328 affected and 633 unaffected) in the EWAS analysis. The GWAS analysis confirmed association of TPMT (chromosome 6, rs11969064) with TIM (30.5% [95/311] affected vs 16.4% [100/608] unaffected patients; odds ratio [OR], 2.3 [95% CI, 1.7 to 3.1], P = 5.2 × 10-9). The EWAS analysis demonstrated an association with an in-frame deletion in NUDT15 (chromosome 13, rs746071566) and TIM (5.8% [19/328] affected vs 0.2% [1/633] unaffected patients; OR, 38.2 [95% CI, 5.1 to 286.1], P = 1.3 × 10-8), which was replicated in a different cohort (2.7% [2/73] affected vs 0.2% [2/840] unaffected patients; OR, 11.8 [95% CI, 1.6 to 85.0], P = .03). Carriage of any of 3 coding NUDT15 variants was associated with an increased risk (OR, 27.3 [95% CI, 9.3 to 116.7], P = 1.1 × 10-7) of TIM, independent of TPMT genotype and thiopurine dose. CONCLUSIONS AND RELEVANCE Among patients of European ancestry with IBD, variants in NUDT15 were associated with increased risk of TIM. These findings suggest that NUDT15 genotyping may be considered prior to initiation of thiopurine therapy; however, further study including additional validation in independent cohorts is required.
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Affiliation(s)
- Gareth J. Walker
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | | | - Graham A. Heap
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | - Michiel D. Voskuil
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, Groningen, the Netherlands
| | - Vibeke Andersen
- Medical Department, Regional Hospital Viborg, Viborg, Denmark
| | | | | | | | - Laurent Beaugerie
- Department of Gastroenterology, Saint-Antoine Hospital and Sorbonne Universite, Paris, France
| | | | - Andy T. Cole
- Derby Digestive Diseases Centre, Royal Derby Hospital, Derby Teaching Hospitals NHS Foundation Trust, Derby, England
| | - Fraser R. Cummings
- Department of Gastroenterology, Southampton General Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, England
| | - Mark J. Daly
- Broad Institute, Harvard University, Cambridge, Massachusetts
| | - Pierre Ellul
- Department of Gastroenterology, Mater Dei Hospital, Msida, Malta
| | | | - Eleonora A. M. Festen
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, Groningen, the Netherlands
| | - Timothy H. Florin
- Mater Research Institute, University of Queensland, South Brisbane, Australia
| | - Daniel R. Gaya
- Department of Gastroenterology, Glasgow Royal Infirmary, NHS Greater Glasgow and Clyde, Glasgow, Scotland
| | | | - Ailsa L. Hart
- Department of Gastroenterology, St Mark’s Hospital, London North West Healthcare NHS Trust, Harrow, England
| | - Neel M. Heerasing
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | - Peter Hendy
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | - Peter M. Irving
- Department of Gastroenterology, Guy’s and St Thomas’ NHS Foundation Trust, London, England
| | | | - Jukka Koskela
- Broad Institute, Harvard University, Cambridge, Massachusetts
| | - James O. Lindsay
- Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine, Queen Mary University of London, London, England
| | - John C. Mansfield
- Department of Gastroenterology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, England
| | - Dermot McGovern
- F. Widjaja Foundation Inflammatory Bowel Disease and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Miles Parkes
- Department of Gastroenterology, Addenbrooke’s Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, England
| | - Richard C. G. Pollok
- Department of Gastroenterology, St George’s Healthcare NHS Trust, Tooting, England
| | - Subramaniam Ramakrishnan
- Gastrointestinal and Liver Services, Warrington and Halton Hospitals NHS Foundation Trust, Warrington, England
| | - David S. Rampton
- Department of Gastroenterology, Royal London Hospital, Barts Health NHS Trust, London, England
| | - Manuel A. Rivas
- Broad Institute, Harvard University, Cambridge, Massachusetts
| | - Richard K. Russell
- Department of Paediatric Gastroenterology, Royal Hospital for Children, NHS Greater Glasgow and Clyde, Glasgow, Scotland
| | | | - Shaji Sebastian
- Gastroenterology and Hepatology, Hull and East Yorkshire Hospitals NHS Trust, Hull, England
| | - Philippe Seksik
- Department of Gastroenterology, Saint-Antoine Hospital and Sorbonne Universite, Paris, France
| | - Abhey Singh
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
| | - Kenji So
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
| | - Harry Sokol
- Department of Gastroenterology, Saint-Antoine Hospital and Sorbonne Universite, Paris, France
| | | | - Anthony Todd
- Department of Haematology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
| | - Vito Annese
- Division of Gastroenterology, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Rinse K. Weersma
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, Groningen, the Netherlands
| | - Ramnik Xavier
- Broad Institute, Harvard University, Cambridge, Massachusetts
| | - Rebecca Ward
- University of Exeter Medical School, Exeter, England
| | | | - James R. Goodhand
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | - Nicholas A. Kennedy
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
| | - Tariq Ahmad
- Department of Gastroenterology, Royal Devon and Exeter Hospital NHS Foundation Trust, Exeter, England
- IBD Pharmacogenetics Group, University of Exeter, Exeter, England
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Cooray SD, Heerasing NM, Selkrig LA, Subramaniam VN, Hamblin PS, McDonald CJ, McLean CA, McNamara E, Leet AS, Roberts SK. Reversal of end-stage heart failure in juvenile hemochromatosis with iron chelation therapy: a case report. J Med Case Rep 2018; 12:18. [PMID: 29373985 PMCID: PMC5787235 DOI: 10.1186/s13256-017-1526-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 11/23/2017] [Indexed: 12/31/2022] Open
Abstract
Background Juvenile hemochromatosis is the most severe form of iron overloading phenotype. Although rare, it should be suspected in patients who present with hypogonadotropic hypogonadism, diabetes mellitus, or cardiomyopathy without a clear cause. Case presentation A young Serbian male presenting with end-stage heart failure was referred for extracorporeal membrane oxygenation. An endomyocardial biopsy revealed cytoplasmic iron deposits in myocytes. His condition was stabilized with biventricular assist devices and he was listed for heart transplantation. Iron chelation therapy was commenced and resulted in rapid removal of iron burden. Serial outpatient echocardiograms demonstrated myocardial recovery such that a successful biventricular assist device explant occurred 131 days after initial implant. Targeted gene sequencing revealed a loss-of-function mutation within the HJV gene, which is consistent with juvenile hemochromatosis. Conclusions This rare case of a patient with juvenile hemochromatosis associated with a HJV mutation provides histologic evidence documenting the reversal of associated end-stage heart failure, requiring emergent mechanical circulatory support, with iron chelation therapy.
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Affiliation(s)
- Shamil D Cooray
- Department of Endocrinology & Diabetes, The Alfred Hospital, Melbourne, VIC, 3004, Australia.
| | - Neel M Heerasing
- Department of Gastroenterology & Hepatology, The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - Laura A Selkrig
- Department of Advanced Heart Failure/ Transplantation, The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - V Nathan Subramaniam
- Membrane Transport Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, 4006, Australia
| | - P Shane Hamblin
- Department of Endocrinology & Diabetes, The Alfred Hospital, Melbourne, VIC, 3004, Australia.,Endocrinology & Diabetes Unit, Western Health, St Albans, VIC, 3021, Australia.,Department of Medicine, Monash University, Melbourne, VIC, Australia.,Department of Medicine, Melbourne Medical School - Western Precinct, The University of Melbourne, Melbourne, VIC, 3021, Australia
| | - Cameron J McDonald
- Membrane Transport Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, 4006, Australia
| | - Catriona A McLean
- Department of Medicine, Monash University, Melbourne, VIC, Australia.,Department of Anatomical Pathology, The Alfred Hospital, Melbourne, VIC, 3004, Australia
| | - Elissa McNamara
- Endocrinology & Diabetes Unit, Western Health, St Albans, VIC, 3021, Australia
| | - Angeline S Leet
- Department of Advanced Heart Failure/ Transplantation, The Alfred Hospital, Melbourne, VIC, 3004, Australia.,Baker Research Institute, Melbourne, VIC, 3004, Australia
| | - Stuart K Roberts
- Department of Gastroenterology & Hepatology, The Alfred Hospital, Melbourne, VIC, 3004, Australia.,Department of Medicine, Monash University, Melbourne, VIC, Australia
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7
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Heerasing NM, Ng JF, Dowling D. Does lymphopenia or macrocytosis reflect 6-thioguanine levels in patients with inflammatory bowel disease treated with azathioprine or 6-mercaptopurine? Intern Med J 2017; 46:465-9. [PMID: 26425841 DOI: 10.1111/imj.12915] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 09/18/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND The thiopurine drugs, 6-mercaptopurine and azathioprine, remain the mainstay of immunomodulator therapy for inflammatory bowel disease (IBD). Optimal management depends on achieving therapeutic levels of 6-thioguanine (6-TGN), but measuring thiopurine metabolites is associated with significant cost. Thiopurines cause lymphopenia and an increase in mean corpuscular volume (MCV). It is unclear whether any clinically useful correlation exists between 6-TGN levels and lymphocyte count or MCV. AIMS The aim of this study is to investigate the correlation between 6-TGN levels and lymphocyte count and MCV in thiopurine-treated patients with IBD. METHODS We analysed a prospectively acquired database of 67 patients with IBD treated with thiopurine therapy. The data were analysed looking at the relationship between 6-TGN levels and both lymphocyte count and MCV by using the Spearman's rank correlation coefficient. RESULTS Twenty-seven (40%) patients had therapeutic 6-TGN levels. Thirty-three (49%) patients had sub-therapeutic 6-TGN levels. A weak positive correlation between 6-TGN levels and lymphocyte count was demonstrated, but this was not statistically significant (Spearman's R = 0.14, P = 0.23). Spearman's rank correlation coefficient between 6-TGN levels and MCV was statistically significant (R = 0.42, P = 0.0005). MCV >101 fL excluded a subtherapeutic 6-TGN level with positive predictive value of 92%. CONCLUSIONS There is no specific lymphopenia that can be assumed to indicate a therapeutic 6-TGN level. The relationship between 6-TGN levels and MCV is likely to be clinically relevant. If MCV is elevated, 6-TGN is unlikely to be sub-therapeutic. MCV is a potential surrogate marker which can rule out sub-therapeutic thiopurine metabolites in patients with IBD treated with azathioprine or 6-mercaptopurine.
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Affiliation(s)
| | - J F Ng
- Barwon Health, Geelong, Victoria, Australia
| | - D Dowling
- Barwon Health, Geelong, Victoria, Australia
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8
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Holmes JA, Nguyen T, Ratnam D, Heerasing NM, Tehan JV, Bonanzinga S, Dev A, Bell S, Pianko S, Chen R, Visvanathan K, Hammond R, Iser D, Rusli F, Sievert W, Desmond PV, Bowden DS, Thompson AJ. IL28B genotype is not useful for predicting treatment outcome in Asian chronic hepatitis B patients treated with pegylated interferon-α. J Gastroenterol Hepatol 2013; 28:861-6. [PMID: 23301835 DOI: 10.1111/jgh.12110] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/21/2012] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND AIM IL28B genotype predicts response to pegylated interferon (peg-IFN)-based therapy in chronic hepatitis C. However, the utility of IL28B genotyping in chronic hepatitis B (CHB) cohorts treated with peg-IFN is unclear. It was investigated whether IL28B genotype is associated with peg-IFN treatment outcomes in a predominantly Asian CHB cohort. METHODS This was a retrospective analysis of CHB patients treated with 48 weeks of peg-IFN monotherapy. IL28B genotype (rs12979860) was determined (TaqMan allelic discrimination kit). Baseline hepatitis B virus (HBV)-DNA, alanine aminotransferase, and liver histology were available. The primary end-points were HBV e antigen (HBeAg) seroconversion with HBV-DNA < 2000 IU/mL 24 weeks post-therapy (HBeAg-positive patients) and HBV-DNA < 2000 IU/mL 24 weeks after peg-IFN (HBeAg-negative patients). The association between IL28B genotype and peg-IFN outcomes was analyzed. RESULTS IL28B genotype was determined for 96 patients. Eighty-eight percent were Asian, 62% were HBeAg positive, and 13% were METAVIR stage F3-4. Median follow-up time was 39.3 months. The majority of patients carried the CC IL28B genotype (84%). IL28B genotype did not differ according to HBeAg status. The primary end-points were achieved in 27% of HBeAg-positive and 61% of HBeAg-negative patients. There was no association between IL28B genotype and the primary end-point in either group. Furthermore, there was no difference in HBeAg loss alone, HBV surface antigen, alanine aminotransferase normalization, or on-treatment HBV-DNA levels according to IL28B genotype. CONCLUSIONS In the context of a small possible effect size and high frequency in Asian populations, IL28B genotyping is likely to have, at best, limited clinical utility for predicting peg-IFN treatment outcome for CHB patients in the Asia-Pacific region.
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Affiliation(s)
- Jacinta A Holmes
- Department of Gastroenterology, St Vincent's Hospital, University of Melbourne, Melbourne, Australia.
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