Skip to main content
Top
Published in: Clinical Rheumatology 1/2021

01-01-2021 | Azathioprine | Review Article

Precision medicine for rheumatologists: lessons from the pharmacogenomics of azathioprine

Authors: Laura L. Daniel, Alyson L. Dickson, Cecilia P. Chung

Published in: Clinical Rheumatology | Issue 1/2021

Login to get access

Abstract

Precision medicine aims to personalize treatment for both effectiveness and safety. As a critical component of this emerging initiative, pharmacogenomics seeks to guide drug treatment based on genetics. In this review article, we give an overview of pharmacogenomics in the setting of an immunosuppressant frequently prescribed by rheumatologists, azathioprine. Azathioprine has a narrow therapeutic index and a high risk of adverse events. By applying candidate gene analysis and unbiased approaches, researchers have identified multiple variants associated with an increased risk for adverse events associated with azathioprine, particularly bone marrow suppression. Variants in two genes, TPMT and NUDT15, are widely recognized, leading drug regulatory agencies and professional organizations to adopt recommendations for testing before initiation of azathioprine therapy. As more gene-drug interactions are discovered, our field will continue to face the challenge of balancing benefits and costs associated with genetic testing. However, novel approaches in genomics and the integration of clinical and genetic factors into risk scores offer unprecedented opportunities for the application of pharmacogenomics in routine practice.
Key Points
Pharmacogenomics can help us understand how individuals’ genetics may impact their response to medications.
Azathioprine is a success story for the clinical implementation of pharmacogenomics, particularly the effects of TPMT and NUDT15 variants on myelosuppression.
As our knowledge advances, testing and dosing recommendations will continue to evolve, with our field striving to balance costs and benefits to patients.
As we aim toward the goals of precision medicine, future research may integrate increasingly individualized traits—including clinical and genetic characteristics—to predict the safety and efficacy of particular medications for individual patients.
Literature
4.
go back to reference Roden DM, Altman RB, Benowitz NL, Flockhart DA, Giacomini KM, Johnson JA, Krauss RM, HL ML, Ratain MJ, Relling MV, Ring HZ, Shuldiner AR, Weinshilboum RM, Weiss ST, Pharmacogenetics Research N (2006) Pharmacogenomics: challenges and opportunities. Ann Intern Med 145(10):749–757CrossRefPubMedCentralPubMed Roden DM, Altman RB, Benowitz NL, Flockhart DA, Giacomini KM, Johnson JA, Krauss RM, HL ML, Ratain MJ, Relling MV, Ring HZ, Shuldiner AR, Weinshilboum RM, Weiss ST, Pharmacogenetics Research N (2006) Pharmacogenomics: challenges and opportunities. Ann Intern Med 145(10):749–757CrossRefPubMedCentralPubMed
10.
go back to reference Avallone EV, Pica R, Cassieri C, Zippi M, Paoluzi P, Vernia P (2014) Azathioprine treatment in inflammatory bowel disease patients: type and time of onset of side effects. Eur Rev Med Pharmacol Sci 18(2):165–170PubMed Avallone EV, Pica R, Cassieri C, Zippi M, Paoluzi P, Vernia P (2014) Azathioprine treatment in inflammatory bowel disease patients: type and time of onset of side effects. Eur Rev Med Pharmacol Sci 18(2):165–170PubMed
11.
go back to reference Singh G, Fries JF, Spitz P, Williams CA (1989) Toxic effects of azathioprine in rheumatoid arthritis. A national post-marketing perspective. Arthritis Rheum 32(7):837–843PubMed Singh G, Fries JF, Spitz P, Williams CA (1989) Toxic effects of azathioprine in rheumatoid arthritis. A national post-marketing perspective. Arthritis Rheum 32(7):837–843PubMed
19.
go back to reference Westervelt P, Cho K, Bright DR, Kisor DF (2014) Drug-gene interactions: inherent variability in drug maintenance dose requirements. P T 39(9):630–637PubMedPubMedCentral Westervelt P, Cho K, Bright DR, Kisor DF (2014) Drug-gene interactions: inherent variability in drug maintenance dose requirements. P T 39(9):630–637PubMedPubMedCentral
36.
go back to reference Broekman M, Coenen MJH, Wanten GJ, van Marrewijk CJ, Klungel OH, Verbeek ALM, Hooymans PM, Guchelaar HJ, Scheffer H, Derijks LJJ, Wong DR, de Jong DJ (2017) Risk factors for thiopurine-induced myelosuppression and infections in inflammatory bowel disease patients with a normal TPMT genotype. Aliment Pharmacol Ther 46(10):953–963. https://doi.org/10.1111/apt.14323CrossRefPubMedPubMedCentral Broekman M, Coenen MJH, Wanten GJ, van Marrewijk CJ, Klungel OH, Verbeek ALM, Hooymans PM, Guchelaar HJ, Scheffer H, Derijks LJJ, Wong DR, de Jong DJ (2017) Risk factors for thiopurine-induced myelosuppression and infections in inflammatory bowel disease patients with a normal TPMT genotype. Aliment Pharmacol Ther 46(10):953–963. https://​doi.​org/​10.​1111/​apt.​14323CrossRefPubMedPubMedCentral
37.
go back to reference Colombel JF, Ferrari N, Debuysere H, Marteau P, Gendre JP, Bonaz B, Soule JC, Modigliani R, Touze Y, Catala P, Libersa C, Broly F (2000) Genotypic analysis of thiopurine S-methyltransferase in patients with Crohn’s disease and severe myelosuppression during azathioprine therapy. Gastroenterology 118(6):1025–1030CrossRefPubMed Colombel JF, Ferrari N, Debuysere H, Marteau P, Gendre JP, Bonaz B, Soule JC, Modigliani R, Touze Y, Catala P, Libersa C, Broly F (2000) Genotypic analysis of thiopurine S-methyltransferase in patients with Crohn’s disease and severe myelosuppression during azathioprine therapy. Gastroenterology 118(6):1025–1030CrossRefPubMed
39.
go back to reference Kumagai K, Hiyama K, Ishioka S, et al. (2001) Allelotype frequency of the thiopurine methyltransferase (TPMT) gene in Japanese. Pharmacogenetics 11(3):275–278. Kumagai K, Hiyama K, Ishioka S, et al. (2001) Allelotype frequency of the thiopurine methyltransferase (TPMT) gene in Japanese. Pharmacogenetics 11(3):275–278.
42.
go back to reference Collie-Duguid ESR, Pritchard P, Sludden J, Collier LT, McLeod HL (1999) The frequency and distribution of thiopurine methyltransferase alleles in Caucasian and Asian populations. Pharmacogenetics 9(1):37–42CrossRefPubMed Collie-Duguid ESR, Pritchard P, Sludden J, Collier LT, McLeod HL (1999) The frequency and distribution of thiopurine methyltransferase alleles in Caucasian and Asian populations. Pharmacogenetics 9(1):37–42CrossRefPubMed
46.
go back to reference Fan X, Yin D, Men R, Xu H, Yang L (2019) NUDT15 Polymorphism confer increased susceptibility to thiopurine-induced leukopenia in patients with autoimmune hepatitis and related cirrhosis. Front Pharmacol 10:346CrossRefPubMedCentralPubMed Fan X, Yin D, Men R, Xu H, Yang L (2019) NUDT15 Polymorphism confer increased susceptibility to thiopurine-induced leukopenia in patients with autoimmune hepatitis and related cirrhosis. Front Pharmacol 10:346CrossRefPubMedCentralPubMed
48.
go back to reference 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 (2019) Association of genetic variants in NUDT15 with thiopurine-induced myelosuppression in patients with inflammatory bowel disease. JAMA 321(8):773–785. https://doi.org/10.1001/jama.2019.0709CrossRefPubMedPubMedCentral 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 (2019) Association of genetic variants in NUDT15 with thiopurine-induced myelosuppression in patients with inflammatory bowel disease. JAMA 321(8):773–785. https://​doi.​org/​10.​1001/​jama.​2019.​0709CrossRefPubMedPubMedCentral
49.
go back to reference Moriyama T, Nishii R, Perez-Andreu V, Yang W, Klussmann FA, Zhao X, Lin TN, Hoshitsuki K, Nersting J, Kihira K, Hofmann U, Komada Y, Kato M, McCorkle R, Li L, Koh K, Najera CR, Kham SK, Isobe T, Chen Z, Chiew EK, Bhojwani D, Jeffries C, Lu Y, Schwab M, Inaba H, Pui CH, Relling MV, Manabe A, Hori H, Schmiegelow K, Yeoh AE, Evans WE, Yang JJ (2016) NUDT15 polymorphisms alter thiopurine metabolism and hematopoietic toxicity. Nat Genet 48(4):367–373. https://doi.org/10.1038/ng.3508CrossRefPubMedPubMedCentral Moriyama T, Nishii R, Perez-Andreu V, Yang W, Klussmann FA, Zhao X, Lin TN, Hoshitsuki K, Nersting J, Kihira K, Hofmann U, Komada Y, Kato M, McCorkle R, Li L, Koh K, Najera CR, Kham SK, Isobe T, Chen Z, Chiew EK, Bhojwani D, Jeffries C, Lu Y, Schwab M, Inaba H, Pui CH, Relling MV, Manabe A, Hori H, Schmiegelow K, Yeoh AE, Evans WE, Yang JJ (2016) NUDT15 polymorphisms alter thiopurine metabolism and hematopoietic toxicity. Nat Genet 48(4):367–373. https://​doi.​org/​10.​1038/​ng.​3508CrossRefPubMedPubMedCentral
50.
go back to reference Chaparro M, Ordás I, Cabré E, Garcia-Sanchez V, Bastida G, Peñalva M, Gomollón F, García-Planella E, Merino O, Gutiérrez A, Esteve M, Márquez L, Garcia-Sepulcre M, Hinojosa J, Vera I, Muñoz F, Mendoza JL, Cabriada JL, Montoro MA, Barreiro-de Acosta M, Ceña G, Saro C, Aldeguer X, Barrio J, Maté J, Gisbert JP (2013) Safety of thiopurine therapy in inflammatory bowel disease: long-term follow-up study of 3931 patients. Inflamm Bowel Dis 19(7):1404–1410. https://doi.org/10.1097/MIB.0b013e318281f28fCrossRefPubMed Chaparro M, Ordás I, Cabré E, Garcia-Sanchez V, Bastida G, Peñalva M, Gomollón F, García-Planella E, Merino O, Gutiérrez A, Esteve M, Márquez L, Garcia-Sepulcre M, Hinojosa J, Vera I, Muñoz F, Mendoza JL, Cabriada JL, Montoro MA, Barreiro-de Acosta M, Ceña G, Saro C, Aldeguer X, Barrio J, Maté J, Gisbert JP (2013) Safety of thiopurine therapy in inflammatory bowel disease: long-term follow-up study of 3931 patients. Inflamm Bowel Dis 19(7):1404–1410. https://​doi.​org/​10.​1097/​MIB.​0b013e318281f28f​CrossRefPubMed
51.
go back to reference Heap GA, Weedon MN, Bewshea CM, Singh A, Chen M, Satchwell JB, Vivian JP, So K, Dubois PC, Andrews JM, Annese V, Bampton P, Barnardo M, Bell S, Cole A, Connor SJ, Creed T, Cummings FR, D'Amato M, Daneshmend TK, Fedorak RN, Florin TH, Gaya DR, Greig E, Halfvarson J, Hart A, Irving PM, Jones G, Karban A, Lawrance IC, Lee JC, Lees C, Lev-Tzion R, Lindsay JO, Mansfield J, Mawdsley J, Mazhar Z, Parkes M, Parnell K, Orchard TR, Radford-Smith G, Russell RK, Reffitt D, Satsangi J, Silverberg MS, Sturniolo GC, Tremelling M, Tsianos EV, van Heel DA, Walsh A, Watermeyer G, Weersma RK, Zeissig S, Rossjohn J, Holden AL, International Serious Adverse Events Consortium, I. B. D. Pharmacogenetics Study Group et al (2014) HLA-DQA1-HLA-DRB1 variants confer susceptibility to pancreatitis induced by thiopurine immunosuppressants. Nat Genet 46(10):1131–1134. https://doi.org/10.1038/ng.3093CrossRefPubMedPubMedCentral Heap GA, Weedon MN, Bewshea CM, Singh A, Chen M, Satchwell JB, Vivian JP, So K, Dubois PC, Andrews JM, Annese V, Bampton P, Barnardo M, Bell S, Cole A, Connor SJ, Creed T, Cummings FR, D'Amato M, Daneshmend TK, Fedorak RN, Florin TH, Gaya DR, Greig E, Halfvarson J, Hart A, Irving PM, Jones G, Karban A, Lawrance IC, Lee JC, Lees C, Lev-Tzion R, Lindsay JO, Mansfield J, Mawdsley J, Mazhar Z, Parkes M, Parnell K, Orchard TR, Radford-Smith G, Russell RK, Reffitt D, Satsangi J, Silverberg MS, Sturniolo GC, Tremelling M, Tsianos EV, van Heel DA, Walsh A, Watermeyer G, Weersma RK, Zeissig S, Rossjohn J, Holden AL, International Serious Adverse Events Consortium, I. B. D. Pharmacogenetics Study Group et al (2014) HLA-DQA1-HLA-DRB1 variants confer susceptibility to pancreatitis induced by thiopurine immunosuppressants. Nat Genet 46(10):1131–1134. https://​doi.​org/​10.​1038/​ng.​3093CrossRefPubMedPubMedCentral
52.
go back to reference Wilson A, Jansen LE, Rose RV, Gregor JC, Ponich T, Chande N, Khanna R, Yan B, Jairath V, Khanna N, Sey M, Beaton M, McIntosh K, Teft WA, Kim RB (2018) HLA-DQA1-HLA-DRB1 polymorphism is a major predictor of azathioprine-induced pancreatitis in patients with inflammatory bowel disease. Aliment Pharmacol Ther 47(5):615–620. https://doi.org/10.1111/apt.14483CrossRefPubMed Wilson A, Jansen LE, Rose RV, Gregor JC, Ponich T, Chande N, Khanna R, Yan B, Jairath V, Khanna N, Sey M, Beaton M, McIntosh K, Teft WA, Kim RB (2018) HLA-DQA1-HLA-DRB1 polymorphism is a major predictor of azathioprine-induced pancreatitis in patients with inflammatory bowel disease. Aliment Pharmacol Ther 47(5):615–620. https://​doi.​org/​10.​1111/​apt.​14483CrossRefPubMed
54.
go back to reference Krynetski EY, Evans WE (2000) Genetic polymorphism of thiopurine S-methyltransferase: molecular mechanisms and clinical importance. Pharmacology 61(3):136–146CrossRefPubMed Krynetski EY, Evans WE (2000) Genetic polymorphism of thiopurine S-methyltransferase: molecular mechanisms and clinical importance. Pharmacology 61(3):136–146CrossRefPubMed
57.
go back to reference Tavadia SM, Mydlarski PR, Reis MD, Mittmann N, Pinkerton PH, Shear N, Sauder DN (2000) Screening for azathioprine toxicity: a pharmacoeconomic analysis based on a target case. J Am Acad Dermatol 42(4):628–632CrossRefPubMed Tavadia SM, Mydlarski PR, Reis MD, Mittmann N, Pinkerton PH, Shear N, Sauder DN (2000) Screening for azathioprine toxicity: a pharmacoeconomic analysis based on a target case. J Am Acad Dermatol 42(4):628–632CrossRefPubMed
58.
go back to reference Marra CA, Esdaile JM, Anis AH (2002) Practical pharmacogenetics: the cost effectiveness of screening for thiopurine s-methyltransferase polymorphisms in patients with rheumatological conditions treated with azathioprine. J Rheumatol 29(12):2507–2512PubMed Marra CA, Esdaile JM, Anis AH (2002) Practical pharmacogenetics: the cost effectiveness of screening for thiopurine s-methyltransferase polymorphisms in patients with rheumatological conditions treated with azathioprine. J Rheumatol 29(12):2507–2512PubMed
60.
go back to reference Swen JJ, Nijenhuis M, van Rhenen M, de Boer-Veger NJ, Buunk AM, Houwink EJF, Mulder H, Rongen GA, van Schaik RHN, van der Weide J, Wilffert B, Deneer VHM, Guchelaar HJ (2018) Pharmacogenetic information in clinical guidelines: the European perspective. Clin Pharmacol Ther 103(5):795–801. https://doi.org/10.1002/cpt.1049CrossRefPubMed Swen JJ, Nijenhuis M, van Rhenen M, de Boer-Veger NJ, Buunk AM, Houwink EJF, Mulder H, Rongen GA, van Schaik RHN, van der Weide J, Wilffert B, Deneer VHM, Guchelaar HJ (2018) Pharmacogenetic information in clinical guidelines: the European perspective. Clin Pharmacol Ther 103(5):795–801. https://​doi.​org/​10.​1002/​cpt.​1049CrossRefPubMed
63.
go back to reference Varnell CD, Fukuda T, Kirby CL, Martin LJ, Warshaw BL, Patel HP, Chand DH, Barletta GM, Van Why SK, VanDeVoorde RG, Weaver DJ, Wilson A, Verghese PS, Vinks AA, Greenbaum LA, Goebel J, Hooper DK (2017) Mycophenolate mofetil-related leukopenia in children and young adults following kidney transplantation: Influence of genes and drugs. Pediatr Transplant 21(7). https://doi.org/10.1111/petr.13033 Varnell CD, Fukuda T, Kirby CL, Martin LJ, Warshaw BL, Patel HP, Chand DH, Barletta GM, Van Why SK, VanDeVoorde RG, Weaver DJ, Wilson A, Verghese PS, Vinks AA, Greenbaum LA, Goebel J, Hooper DK (2017) Mycophenolate mofetil-related leukopenia in children and young adults following kidney transplantation: Influence of genes and drugs. Pediatr Transplant 21(7). https://​doi.​org/​10.​1111/​petr.​13033
65.
go back to reference Honda K, Kobayashi A, Niikura T, Hasegawa T, Saito Z, Ito S, Sasaki T, Komine K, Ishizuka S, Motoi Y, Kubota T, Yamamoto H, Yokoo T (2018) Neutropenia related to an azathioprine metabolic disorder induced by an inosine triphosphate pyrophosphohydrolase (ITPA) gene mutation in a patient with PR3-ANCA-positive microscopic polyangiitis. Clin Nephrol 90(5):363–369. https://doi.org/10.5414/CN109383CrossRefPubMed Honda K, Kobayashi A, Niikura T, Hasegawa T, Saito Z, Ito S, Sasaki T, Komine K, Ishizuka S, Motoi Y, Kubota T, Yamamoto H, Yokoo T (2018) Neutropenia related to an azathioprine metabolic disorder induced by an inosine triphosphate pyrophosphohydrolase (ITPA) gene mutation in a patient with PR3-ANCA-positive microscopic polyangiitis. Clin Nephrol 90(5):363–369. https://​doi.​org/​10.​5414/​CN109383CrossRefPubMed
66.
76.
go back to reference Steinberg KK, Relling MV, Gallagher ML, Greene CN, Rubin CS, French D, Holmes AK, Carroll WL, Koontz DA, Sampson EJ, Satten GA (2007) Genetic studies of a cluster of acute lymphoblastic leukemia cases in Churchill County, Nevada. Environ Health Perspect 115(1):158–164. https://doi.org/10.1289/ehp.9025CrossRefPubMed Steinberg KK, Relling MV, Gallagher ML, Greene CN, Rubin CS, French D, Holmes AK, Carroll WL, Koontz DA, Sampson EJ, Satten GA (2007) Genetic studies of a cluster of acute lymphoblastic leukemia cases in Churchill County, Nevada. Environ Health Perspect 115(1):158–164. https://​doi.​org/​10.​1289/​ehp.​9025CrossRefPubMed
84.
go back to reference Andonova IE, Justenhoven C, Winter S, Hamann U, Baisch C, Rabstein S, Spickenheuer A, Harth V, Pesch B, Bruning T, Ko YD, Ganev V, Brauch H (2010) No evidence for glutathione S-transferases GSTA2, GSTM2, GSTO1, GSTO2, and GSTZ1 in breast cancer risk. Breast Cancer Res Treat 121(2):497–502. https://doi.org/10.1007/s10549-009-0589-5CrossRefPubMed Andonova IE, Justenhoven C, Winter S, Hamann U, Baisch C, Rabstein S, Spickenheuer A, Harth V, Pesch B, Bruning T, Ko YD, Ganev V, Brauch H (2010) No evidence for glutathione S-transferases GSTA2, GSTM2, GSTO1, GSTO2, and GSTZ1 in breast cancer risk. Breast Cancer Res Treat 121(2):497–502. https://​doi.​org/​10.​1007/​s10549-009-0589-5CrossRefPubMed
86.
go back to reference Mitrokhin V, Nikitin A, Brovkina O, Khodyrev D, Zotov A, Vachrushev N, Dragunov D, Shim A, Mladenov M, Kamkin A (2017) Association between interleukin-6/6R gene polymorphisms and coronary artery disease in Russian population: influence of interleukin-6/6R gene polymorphisms on inflammatory markers. J Inflamm Res 10:151–160. https://doi.org/10.2147/jir.S141682CrossRefPubMedPubMedCentral Mitrokhin V, Nikitin A, Brovkina O, Khodyrev D, Zotov A, Vachrushev N, Dragunov D, Shim A, Mladenov M, Kamkin A (2017) Association between interleukin-6/6R gene polymorphisms and coronary artery disease in Russian population: influence of interleukin-6/6R gene polymorphisms on inflammatory markers. J Inflamm Res 10:151–160. https://​doi.​org/​10.​2147/​jir.​S141682CrossRefPubMedPubMedCentral
89.
go back to reference Zabala W, Cruz R, Barreiro-de Acosta M, Chaparro M, Panes J, Echarri A, Esteve M, Carpio D, Andreu M, García-Planella E, Domenech E, Carracedo A, Gisbert JP, Barros F, Eiga Eneida investigators (2013) New genetic associations in thiopurine-related bone marrow toxicity among inflammatory bowel disease patients. Pharmacogenomics 14(6):631–640CrossRefPubMed Zabala W, Cruz R, Barreiro-de Acosta M, Chaparro M, Panes J, Echarri A, Esteve M, Carpio D, Andreu M, García-Planella E, Domenech E, Carracedo A, Gisbert JP, Barros F, Eiga Eneida investigators (2013) New genetic associations in thiopurine-related bone marrow toxicity among inflammatory bowel disease patients. Pharmacogenomics 14(6):631–640CrossRefPubMed
90.
go back to reference Zabala-Fernández W, Barreiro-de Acosta M, Echarri A, Carpio D, Lorenzo A, Castro J, Martínez-Ares D, Pereira S, Martin-Granizo I, Corton M, Carracedo A, Barros F (2011) A pharmacogenetics study of TPMT and ITPA genes detects a relationship with side effects and clinical response in patients with inflammatory bowel disease receiving azathioprine. J Gastrointestin Liver Dis 20(3):247–253. https://doi.org/10.1002/cncr.26110CrossRefPubMed Zabala-Fernández W, Barreiro-de Acosta M, Echarri A, Carpio D, Lorenzo A, Castro J, Martínez-Ares D, Pereira S, Martin-Granizo I, Corton M, Carracedo A, Barros F (2011) A pharmacogenetics study of TPMT and ITPA genes detects a relationship with side effects and clinical response in patients with inflammatory bowel disease receiving azathioprine. J Gastrointestin Liver Dis 20(3):247–253. https://​doi.​org/​10.​1002/​cncr.​26110CrossRefPubMed
92.
go back to reference Chang JY, Park SJ, Jung ES, Jung SA, Moon CM, Chun J, Park JJ, Kim ES, Park Y, Kim TI, Kim WH, Cheon JH (2019) Genotype-based treatment with thiopurine reduces incidence of myelosuppression in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. https://doi.org/10.1016/j.cgh.2019.08.034 Chang JY, Park SJ, Jung ES, Jung SA, Moon CM, Chun J, Park JJ, Kim ES, Park Y, Kim TI, Kim WH, Cheon JH (2019) Genotype-based treatment with thiopurine reduces incidence of myelosuppression in patients with inflammatory bowel diseases. Clin Gastroenterol Hepatol. https://​doi.​org/​10.​1016/​j.​cgh.​2019.​08.​034
93.
go back to reference Anandi P, Dickson AL, Feng Q, Wei WQ, Dupont WD, Plummer D, Liu G, Octaria R, Barker KA, Kawai VK, Birdwell K, Cox NJ, Hung A, Stein CM, Chung CP (2020) Combining clinical and candidate gene data into a risk score for azathioprine-associated leukopenia in routine clinical practice. Pharmacogenomics J. https://doi.org/10.1038/s41397-020-0163-4 Anandi P, Dickson AL, Feng Q, Wei WQ, Dupont WD, Plummer D, Liu G, Octaria R, Barker KA, Kawai VK, Birdwell K, Cox NJ, Hung A, Stein CM, Chung CP (2020) Combining clinical and candidate gene data into a risk score for azathioprine-associated leukopenia in routine clinical practice. Pharmacogenomics J. https://​doi.​org/​10.​1038/​s41397-020-0163-4
Metadata
Title
Precision medicine for rheumatologists: lessons from the pharmacogenomics of azathioprine
Authors
Laura L. Daniel
Alyson L. Dickson
Cecilia P. Chung
Publication date
01-01-2021
Publisher
Springer International Publishing
Published in
Clinical Rheumatology / Issue 1/2021
Print ISSN: 0770-3198
Electronic ISSN: 1434-9949
DOI
https://doi.org/10.1007/s10067-020-05258-2

Other articles of this Issue 1/2021

Clinical Rheumatology 1/2021 Go to the issue