
Overview
Background
Dr Yoon-Kyo An is the “Head of Inflammatory Bowel Disease (IBD)” at Mater Hospital Brisbane and the “Clinical Lead of the IBD Clinical Trials Unit” at Mater Research, a world class centre of clinical and research excellence. The centre is among the largest IBD clinical research units in Australia. She is also a gastroenterologist who specialises in IBD, combining public and private practices at Mater Hospital Brisbane, Mater Private Hospital Brisbane, and Mater Private Hospital Redland. She holds a senior lecturer position at the University of Queensland. Dr An is a co-founder of digital healthcare education platform ‘GutTalk’, which aims to empower patients and communities by closing the communication and knowledge gap in Gut Health.
Dr An completed her Medical Science degree (BMedSc) at the University of Sydney and her Medical degree (MBBS) at the University of Queensland. She undertook her physician and advanced gastroenterology training at the Royal Brisbane and Women’s Hospital and Mater Hospital Brisbane. She completed a clinical and research fellowship in IBD at Mater Hospital Brisbane and completed the executive business and leadership program at the University of Oxford Said Business School. She is currently pursuing a PhD through the University of Queensland and an MBA through Griffith University.
Dr An is a passionate advocate for optimising patient outcomes through a holistic approach to care including personalised treatment plans to manage digestive health and incorporation of clinical and translational research. She is an active IBD clinician and researcher as well as a patient advocate. Her own research focusses on real-world effectiveness of biologic therapy in IBD and the use of intestinal ultrasound to monitor disease activity and predict responses to therapy. She drives collaborative research projects throughout Australia and is actively involved with the Australia New Zealand Inflammatory Bowel Disease Consortium (ANZIBDC), the Gastroenterology Network for Intestinal Ultrasound (GENIUS) and the Gastroenterological Society of Australia (GESA).
Dr An has been successful in competitive research funding from industry and philanthropic organisations. She was the recipient of the inaugural GENIUS fellowship. She has affiliations with many Gastroenterology and IBD societies and has a national presence through her numerous symposia and conference presentations. She also serves on several Medical Advisory Boards including Chiesi, Bristol-Myers Squibb, and NPS Medicine Wise as well as sitting on the Council of Therapeutic Advisory Group. She is a GESA representative on the GP Aware Program committee and works collaboratively with Crohn’s and Colitis Australia (CCA).
Current Appointments
- 2021 – current: Executive Committee Member – Secretary, Australia and New Zealand Inflammatory Bowel Disease Consortium (ANZIBDC)
- 2020 – current: Scientific Committee Member, Australia and New Zealand Inflammatory Bowel Disease Consortium (ANZIBDC)
- 2020 – current: Board Member – Research Officer, Gastroenterology Network for Intestinal Ultrasound (GENIUS)
- 2020 – current: Executive Committee Member – IBD Liaison Officer, Young GESA Network, Gastroenterological Society of Australia (GESA)
- 2020 – current: Expert Advisory Group member, The Council of Therapeutic Advisory Groups (CATAG)
- 2020 – current: GESA representative, CCA-GESA GP Aware Program Committee, Crohn’s and Colitis Australia (CCA)
- 2020 – current: Expert Working Group Member, bDMARDs Gastroenterology Design Forum, NPS Medicine Wise
- 2020 – current: Stakeholder Panel (GESA representative), Value in Prescribing bDMARDs Program, NPS Medicine Wise
Availability
- Dr Yoon An is:
- Available for supervision
Fields of research
Works
Search Professor Yoon An’s works on UQ eSpace
2025
Journal Article
Patient Preferences for Treatment Attributes in Inflammatory Bowel Disease: A Discrete Choice Experiment Among Patients in Five Non-Western Countries
Argollo, Marjorie, An, Yoon K., Azzam, Nahla, Balderramo, Domingo C., Fadeeva, Olga, Kuo, Chia-Jung, Laurent, Julie and Uy, Elenore (2025). Patient Preferences for Treatment Attributes in Inflammatory Bowel Disease: A Discrete Choice Experiment Among Patients in Five Non-Western Countries. Advances in Therapy, 1-23. doi: 10.1007/s12325-025-03249-w
2025
Journal Article
Upadacitinib and vedolizumab combination therapy for the management of refractory ulcerative colitis and Crohn’s disease
Gilmore, Robert, Murali, Amrutha, Etchegaray, Amirah, Swe, Ei, An, Yoon-Kyo and Begun, Jakob (2025). Upadacitinib and vedolizumab combination therapy for the management of refractory ulcerative colitis and Crohn’s disease. Intestinal Research. doi: 10.5217/ir.2024.00174
2025
Journal Article
Su1947: COMPARATIVE ACCURACY AND RELIABILITY OF HANDHELD VERSUS CART-BASED ULTRASOUND IN ASSESSING INFLAMMATORY BOWEL DISEASE ACTIVITY
Khaing, Myat Myat, Fernandes, Richard G., An, Yoon-Kyo, Baraty, Brandon, Bryant, Robert V., Ghaly, Simon, Smith, Rebecca, Srinivasan, Ashish, Hay, Karen and Begun, Jakob (2025). Su1947: COMPARATIVE ACCURACY AND RELIABILITY OF HANDHELD VERSUS CART-BASED ULTRASOUND IN ASSESSING INFLAMMATORY BOWEL DISEASE ACTIVITY. Gastroenterology, 169 (1), S-902. doi: 10.1016/s0016-5085(25)03008-2
2025
Journal Article
Mo1954: CONSISTENCY AND QUALITY OF INFLAMMATORY BOWEL DISEASE CARE IN AUSTRALASIA; TOWARDS BENCHMARKING
Su, Wai Kin, McNamara, Jack, Wilson, William E., Wark, Gabrielle, Lynch, Kate D., Su, Heidi Y., Forbes, Angela J., Lawrance, Ian C., An, Yoon-Kyo, Dutt, Shoma, Brett, Laurel, Walker, Gareth, Andrews, Jane M., Connor, Susan J. and Ghaly, Simon (2025). Mo1954: CONSISTENCY AND QUALITY OF INFLAMMATORY BOWEL DISEASE CARE IN AUSTRALASIA; TOWARDS BENCHMARKING. Gastroenterology, 169 (1), S-1240. doi: 10.1016/s0016-5085(25)03741-2
2025
Journal Article
Su1899: EXTENSIVE DISEASE CLEARANCE AS A NOVEL COMPOSITE ENDPOINT TO PREDICT LONG-TERM RELAPSE IN VEDOLIZUMAB-TREATED PATIENTS WITH ULCERATIVE COLITIS: A POST-HOC ANALYSIS FROM THE VIEWS RANDOMISED CONTROLLED TRIAL
Pudipeddi, Aviv, Paramsothy, Sudarshan, Kariyawasam, Viraj C., Paramsothy, Ramesh, Ghaly, Simon, Haifer, Craig, An, Yoon-Kyo, Begun, Jakob, Connor, Susan J., Corte, Crispin, Ward, Mark, De Cruz, Peter, Fung, Caroline L., Redmond, Diane, Chan, Pak Wo, Mourad, Fadi H., Kermeen, Melissa and Leong, Rupert (2025). Su1899: EXTENSIVE DISEASE CLEARANCE AS A NOVEL COMPOSITE ENDPOINT TO PREDICT LONG-TERM RELAPSE IN VEDOLIZUMAB-TREATED PATIENTS WITH ULCERATIVE COLITIS: A POST-HOC ANALYSIS FROM THE VIEWS RANDOMISED CONTROLLED TRIAL. Gastroenterology, 169 (1), S-879. doi: 10.1016/s0016-5085(25)02960-9
2025
Journal Article
Su1943: CORRELATION OF BIOCHEMICAL, ENDOSCOPIC AND HISTOLOGIC ENDPOINTS IN VEDOLIZUMAB-TREATED PATIENTS WITH ULCERATIVE COLITIS: A POST-HOC ANALYSIS FROM THE VIEWS RANDOMISED CONTROLLED TRIAL
Pudipeddi, Aviv, Paramsothy, Sudarshan, Kariyawasam, Viraj C., Paramsothy, Ramesh, Ghaly, Simon, Haifer, Craig, An, Yoon-Kyo, Begun, Jakob, Connor, Susan J., Corte, Crispin, Ward, Mark, De Cruz, Peter, Fung, Caroline L., Redmond, Diane, Chan, Pak Wo, Mourad, Fadi H., Kermeen, Melissa and Leong, Rupert (2025). Su1943: CORRELATION OF BIOCHEMICAL, ENDOSCOPIC AND HISTOLOGIC ENDPOINTS IN VEDOLIZUMAB-TREATED PATIENTS WITH ULCERATIVE COLITIS: A POST-HOC ANALYSIS FROM THE VIEWS RANDOMISED CONTROLLED TRIAL. Gastroenterology, 169 (1), S-900. doi: 10.1016/s0016-5085(25)03004-5
2025
Journal Article
The durability of anti-TNF therapy for Crohn’s Disease is higher in anti-TNF naïve patients and increases with proactive therapeutic drug monitoring
Gilmore, Robert, Fernandes, Richard, Schildkraut, Tamar, Joshi, Riddhi, Lin, Lyman, Vorgin, Sara, Etchegaray, Amirah, Shanmuga Anandan, Aathavan, Tambakis, George, Loebenstein, Moshe, An, Yoon-Kyo, Begun, Jakob and Wright, Emily K (2025). The durability of anti-TNF therapy for Crohn’s Disease is higher in anti-TNF naïve patients and increases with proactive therapeutic drug monitoring. Crohn's and Colitis 360, 7 (2) otaf028, 1-9. doi: 10.1093/crocol/otaf028
2025
Journal Article
Comparing Long‐Term Infliximab Persistence Following a Switch to a Biosimilar in Patients With Inflammatory Bowel Disease: No Cause for Concern
Suo, Paulina, Srinivasan, Ashish, Thin, Lena, An, Yoon‐Kyo, Fernandes, Richard G., Ghaly, Simon, Jeffrey, Angus W., Menon, Shankar, Olsen, Nicholas, Skinner, Thomas, van Langenberg, Daniel R., Winston, James and Haifer, Craig (2025). Comparing Long‐Term Infliximab Persistence Following a Switch to a Biosimilar in Patients With Inflammatory Bowel Disease: No Cause for Concern. Journal of Gastroenterology and Hepatology, 40 (5), 1174-1181. doi: 10.1111/jgh.16916
2025
Conference Publication
Clinical outcomes and predictive factors differ in acute severe ulcerative colitis for East Asian and Western patients
Kim, E. S., Lee, H. S., Kim, D. H., Kim, H. S., Park, S. H., Kim, K. O., Jang, B., Kim, D. S., Lee, Y. J., Song, E. M., Kim, S. J., Lee, J., Yang, C. H., Sagami, S., Kobayashi, T., Mak, J., Liu, J., Cao, Q., Lin, W. C., Wei, S. C., Rice, K., An, Y. K., Begun, J., Ruddick-Collins, L., Fernandes, R. G., Gilmore, R., Vasudevan, A., Zhang, J., Brownson, A. ... Garg, M. (2025). Clinical outcomes and predictive factors differ in acute severe ulcerative colitis for East Asian and Western patients. OXFORD: OXFORD UNIV PRESS. doi: 10.1093/ecco-jcc/jjae190.0082
2025
Journal Article
Optimizing 5-aminosalicylate for moderate ulcerative colitis: expert recommendations from the Asia-Pacific, Middle East, and Africa Inflammatory Bowel Disease Coalition
Akyüz, Filiz, An, Yoon Kyo, Begun, Jakob, Aniwan, Satimai, Bui, Huu Hoang, Chan, Webber, Choi, Chang Hwan, Chopdat, Nazeer, Connor, Susan J, Desai, Devendra, Flanagan, Emma, Kobayashi, Taku, Lai, Allen Yu-Hung, Leong, Rupert W, Leow, Alex Hwong-Ruey, Leung, Wai Keung, Limsrivilai, Julajak, Muzellina, Virly Nanda, Peddi, Kiran, Ran, Zhihua, Wei, Shu Chen, Sollano, Jose, Teo, Michelle Mui Hian, Wu, Kaichun, Ye, Byong Duk and Ooi, Choon Jin (2025). Optimizing 5-aminosalicylate for moderate ulcerative colitis: expert recommendations from the Asia-Pacific, Middle East, and Africa Inflammatory Bowel Disease Coalition. Intestinal Research, 23 (1), 37-55. doi: 10.5217/ir.2024.00089
2025
Conference Publication
The real-world use of intravenous and subcutaneous Vedolizumab in IBD across Australia and New Zealand, Crohn’s Colitis Cure Data Insight’s Program
Su, W. K., Wilson, W., Wark, G., Ghaly, S., Lynch, K., Lawrance, I., Walker, G., Forbes, A., Brett, L., An, Y. K., Connor, S. J. and Andrews, J. M. (2025). The real-world use of intravenous and subcutaneous Vedolizumab in IBD across Australia and New Zealand, Crohn’s Colitis Cure Data Insight’s Program. 20th Congress of ECCO, Berlin, Germany, 19-22 February 2025. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/ecco-jcc/jjae190.0777
2025
Conference Publication
Janus Kinase Inhibitors for the Management of Acute Severe Ulcerative Colitis: A Multicentre Study
Gilmore, R., Fernandes, R., Chin, S., Con, D., De Cruz, P., Demase, K., Sparrow, M., Thin, L., Baker, J., Venugopal, K., Lucas, S., Garg, M., Loebenstein, M., Nguyen, A., Moore, G., Tandon, B., Bryant, R., MacFarlane, K., Lynch, K., Abdul, S., Subhaharan, D., Mohsen, W., Haig, A., Day, M., White, L., Begun, J. and An, Y. K. (2025). Janus Kinase Inhibitors for the Management of Acute Severe Ulcerative Colitis: A Multicentre Study. 20th Congress of ECCO, Berlin, Germany, 19-22 February 2025. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/ecco-jcc/jjae190.1203
2025
Conference Publication
Correlation of biochemical, endoscopic and histologic endpoints in vedolizumab-treated patients with ulcerative colitis: a post-hoc analysis from the VIEWS randomised controlled trial
Pudipeddi, A., Dhanji, P., Paramsothy, S., Kariyawasam, V., Paramsothy, R., Ghaly, S., Haifer, C., An, Y. K., Begun, J., Connor, S., Corte, C., Ward, M., De Cruz, P., Fung, C., Redmond, D., Chan, W., Mourad, F., Kermeen, M. and Leong, R. (2025). Correlation of biochemical, endoscopic and histologic endpoints in vedolizumab-treated patients with ulcerative colitis: a post-hoc analysis from the VIEWS randomised controlled trial. 20th Congress of ECCO, Berlin, Germany, 19-22 February 2025. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/ecco-jcc/jjae190.0431
2025
Conference Publication
Consistency and Quality of Inflammatory Bowel Disease care in Australasia; Towards Benchmarking, Crohn’s Colitis Cure Data Insight’s Program
Su, W. K., McNamara, J., Wilson, W., Wark, G., Lynch, K., Su, H., Forbes, A., Lawrance, I., An, Y. K., Dutt, S., Brett, L., Walker, G., Andrews, J. M., Connor, S. J. and Ghaly, S. (2025). Consistency and Quality of Inflammatory Bowel Disease care in Australasia; Towards Benchmarking, Crohn’s Colitis Cure Data Insight’s Program. 20th Congress of ECCO, Berlin, Germany, 19-22 February 2025. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/ecco-jcc/jjae190.0054
2025
Conference Publication
Handheld ultrasound devices are an accurate alternative to cart-based ultrasound for IBD disease activity assessment
Fernandes, R., Swe, E., Khaing, M. M., Gilmore, R., Khoo, E., An, Y. K. and Begun, J. (2025). Handheld ultrasound devices are an accurate alternative to cart-based ultrasound for IBD disease activity assessment. 20th Congress of ECCO, Berlin, Germany, 19-22 February 2025. Oxford, United Kingdom: Oxford University Press. doi: 10.1093/ecco-jcc/jjae190.1349
2024
Journal Article
Upadacitinib induction is effective and safe in ulcerative colitis patients including those with prior exposure to tofacitinib: a multicenter real-world cohort study
Gilmore, Robert, Fernandes, Richard, Hartley, Imogen, Arzivian, Arteen, Leong, Rupert, Andrew, Bridgette, Vasudevan, Abhinav, Greeve, Tessa, Moore, Gregory Thomas, Kim, Steven, Lightowler, Daniel, Singh, Abhey, Mahy, Gillian, Mithanthaya, Aditya, Venugopaul, Kannan, Han, Sangwoo, Bryant, Robert, West, Jack, Segal, Jonathan, Christensen, Britt, Corte, Crispin, Ding, Nik, An, Yoon-Kyo and Begun, Jakob (2024). Upadacitinib induction is effective and safe in ulcerative colitis patients including those with prior exposure to tofacitinib: a multicenter real-world cohort study. Intestinal Research. doi: 10.5217/ir.2024.00127
2024
Conference Publication
Endotoxemia As Possible Cause of Inflammatory Bowel Diseases-Associated Anemia
Bisht, Kavita, An, Yoon-Kyo, Shatunova, Svetlana, Wang, Ran, Barbier, Valerie, Giri, Rabina, Amiss, Anna, Tang, Yifu, Alexander, Kylie, Millard, Susan, Winkler, Ingrid G., Pettit, Allison, Begun, Jakob and Levesque, Jean-Pierre (2024). Endotoxemia As Possible Cause of Inflammatory Bowel Diseases-Associated Anemia. 66th ASH Annual Meeting, San Diego, CA United States, 7-10 December 2024. Washington, DC United States: American Society of Hematology. doi: 10.1182/blood-2024-193349
2024
Journal Article
Effects of thiopurine withdrawal on vedolizumab-treated patients with ulcerative colitis: a randomized controlled trial
Pudipeddi, Aviv, Paramsothy, Sudarshan, Kariyawasam, Viraj, Paramsothy, Ramesh, Ghaly, Simon, Haifer, Craig, An, Yoon-Kyo, Begun, Jakob, Connor, Susan J., Corte, Crispin, Ward, Mark G., De Cruz, Peter, Fung, Caroline Lan-San, Redmond, Diane, Chan, Webber, Mourad, Fadi, Kermeen, Melissa and Leong, Rupert W. (2024). Effects of thiopurine withdrawal on vedolizumab-treated patients with ulcerative colitis: a randomized controlled trial. Clinical Gastroenterology and Hepatology, 22 (11), 2299-2308. doi: 10.1016/j.cgh.2024.04.019
2024
Conference Publication
Exploring a novel score to assess the patient perceived burden of disease in Crohn's disease and ulcerative colitis: Crohn's Colitis Cure (CCC) data insights program
Su, Wai Kin, Gu, Bonita, Pipicella, Joseph, Wilson, William, Kim, Andrew, Wark, Gabrielle, Giles, Edward, Walker, Gareth, Forbes, Angela, Su, Heidi, Dutt, Shoma, An, Yoon-Kyo, Lawrance, Ian, Lynch, Kate, Connor, Susan J. and Andrews, Jane (2024). Exploring a novel score to assess the patient perceived burden of disease in Crohn's disease and ulcerative colitis: Crohn's Colitis Cure (CCC) data insights program. Gastroenterological Society of Australia (GESA) Australian Gastroenterology Week (AGW) 2024, Adelaide, SA Australia, 14-16 September 2024. Richmond, VIC Australia: John Wiley & Sons.
2024
Conference Publication
Dose escalated therapy improving outcomes in inflammatory bowel disease: Crohn's Colitis Cure (CCC) data insights program
Su, Wai Kin, Wilson, William, Ng, Watson, Whittaker, Clair, Giles, Edward, Walker, Gareth, Forbes, Angela, Lawrance, Ian, Dutt, Shoma, Lynch, Kate, Brett, Laurel, An, Yoon-Kyo, Connor, Susan J. and Andrews, Jane (2024). Dose escalated therapy improving outcomes in inflammatory bowel disease: Crohn's Colitis Cure (CCC) data insights program. Gastroenterological Society of Australia (GESA) Australian Gastroenterology Week (AGW) 2024, Adelaide, SA Australia, 14-16 September 2024. Richmond, VIC Australia: John Wiley & Sons.
Supervision
Availability
- Dr Yoon An is:
- Available for supervision
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Media
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