Active Members


Maria Abreu
University of Miami
Miller School of Medicine
33136 1011 NW 15th Street,
Gautier Ste. 510 FL Miami

Short Biography

Dr. Maria T. Abreu is a Gastroenterologist who specializes in inflammatory bowel disease (IBD). She completed her medical degree at the University of Miami, Miller School of Medicine. Her postdoctoral training included an internship and residency in medicine at the Brigham and Women’s Hospital in Boston, Massachusetts, and a clinical and research fellowship in gastroenterology at the University of California, Los Angeles (UCLA). She was an Associate Professor of Medicine at Mount Sinai School of Medicine, NYC, and head of the IBD Center. She is currently the Director of the Crohn’s and Colitis Center, Professor of Medicine, and Professor of Microbiology and Immunology at the University of Miami Miller School of Medicine.

Dr. Abreu has more than 20 years of leadership experience in basic, translational, and clinical research and mentoring. Dr. Abreu was elected to the American Society for Clinical Investigation in 2010 and, in 2018, to the Association of American Physicians (AAP). She completed a three-year term as Chair of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD) in 2022. In 2019, she was elected Councillor-at-Large of the American Gastroenterological Association (AGA) Governing Board for a term of three years. Most recently, she is President-Elect of the AGA, on the path to becoming President in 2024. She will be the fifth woman and first Latina to hold this position.

Dr. Abreu is a recipient of the 2019 Sherman Prize by The Bruce and Cynthia Sherman Charitable Foundation, which recognizes outstanding achievements in IBD. In 2020, she received the Mentoring Award from the IMIBD section of the AGA. In the Fall of 2020, she received the Healio’s Lifetime Disruptor Award. This award goes to a gastroenterologist or hepatologist who consistently pushed the gastroenterology field forward through innovative treatments, practice management, patient care, or research. She is the 30th alumnus inducted into the University of Miami Miller School of Medicine Hall of Fame.

At Digestive Diseases Week 2022, Dr. Abreu gave the Morton Grossman Lecture; at the Florida Gastroenterology Society Annual Meeting, she gave the James L. Borland, Sr. Memorial Lecture.

Dr. Abreu is frequently invited as a speaker (in English and Spanish) at symposia on basic science and clinical topics all over the world. She has authored more than 200 peer-reviewed articles, books, chapters, and reviews.

Matthieu Allez
Hopital Saint-Louis
Dpt. Gastroenterology & Hepatology
75475 Paris cedex 10

Vineet Ahuja
All India Institute of Medical Sciences
Dpt. Gastroenterology
and Human Nutrition
New Delhi

Ashwin Ananthakrishnan

Harvard Medical School
Harvard School of Dental Medicine
165 Cambridge Street, 9th floor
MA02114 MA Boston

Short Biography

Dr. Ashwin Ananthakrishnan is an Associate Professor of Medicine at Harvard Medical School and Director of the Crohn’s and Colitis center at Massachusetts General Hospital. His clinical and translational research interests are (i) the role of environmental factors in the development and care of IBD, particularly on the effect of diet and stress; (ii) IBD in emerging populations including older adults and diverse populations; (iii) precision medicine approaches for the treatment and monitoring of patients with IBD incorporating multi-omic biomarkers; and (iv) biology and management of subjective symptoms in IBD including fatigue and pain. He has authored over 300 manuscripts in IBD and served on the editorial boards for numerous journals. His research is supported by The Helmsley Charitable Trust and National Institutes of Health.


Dr. Rupa Banerjee
Asian Institute of Gastroenterology & AIG Hospitals
Director IBD Center
Asian Healthcare Foundation
Mindspaceroad, Gachibowli
500 032 Hyderabad, Telangana

Charles Bernstein
University of Manitoba
804 F-175 McDermot Avenue MB
R3E 3P4 Manitoba Winnipeg

Short Biography

Dr. Charles Bernstein, a graduate from the University of Manitoba Faculty of Medicine, and the UCLA Division of Gastroenterology Fellowship Training Program is Distinguished Professor of Medicine, Bingham Chair in Gastroenterology Research; and Director, Inflammatory Bowel Disease (IBD) Clinical and Research Centre at the University of Manitoba.
His main research interests are primarily related to IBD; in terms of optimizing management approaches; exploring predictors of clinical outcomes; and disease etiology including related to the gut microbiome.
Dr. Bernstein has been a pioneer in Canada in harnessing administrative health data to study chronic immune diseases and in developing a population-based database, the University of Manitoba IBD Epidemiology Database, that has both served as a model for the development of other similar databases in other provinces as well as a unique tool to study IBD.
More recently, he has been actively involved in exploring the biological and clinical intersection between different chronic immune mediated inflammatory diseases.
He has published over 700 peer reviewed articles, 29 book chapters, and is a co-editor of one of the seminal gastrointestinal clinical-pathology textbooks.
As of June 27, 2023, his Google H-Index is 121 and he has had over 68000 citations.
In 1998 he was elected to the International Organization for the Study of IBD (IOIBD) and served as its scientific secretary 2007-2011.
In 2009, he was named the inaugural Bingham Chair in Gastroenterology at the University of Manitoba.
In 2012 he was elected to the Royal Society of Canada -Life Sciences Division of the Academy of Science.
In 2019 he was awarded the Crohn’s and Colitis Canada Research Leadership Award.
In 2022 he was awarded with the Richard N Fedorak Award of Distinction for peer education of IBD presented at Mentoring in IBD; The Master Class 2022.

Dr. Christianne Buskens
Amsterdam UMC / AMC
Colorectal Surgery Unit
Meibergdreef 9
1105 AZ Amsterdam

Shomron Ben-Horin , MD
Sheba Medical Center
Chief, Gastroenterology Department
31 Emek Ha'ela Ramat Gan

Short Biography

Shomron Ben-Horin received his medical training in Israel and was a Post-Doc scientist in immunology at Columbia University Presbyterian Hospital in New-York.
Prof. Ben-Horin specializes in inflammatory bowel diseases (IBD) and his main research focus is biologic drug mechanisms and monitoring of IBD.
He is a Full Professor of Medicine at the Tel-Aviv University, the Chief of the Gastroenterology Department at Sheba Medical Center, Israel and is also an Adjunct Professor of Medicine at the Sun Yat-Sen University Hospital, Guangzhou, China, where he worked as a visiting professor for one year in 2015-2016.
Shomron has previously served as a member of the Scientific Committee of the European Crohn’s & Colitis Organization (ECCO), as Associate Editor of JCC and as the Chair of the Israeli IBD Society and is at present an IOIBD member.
He has been the co-founder of two Start-up companies and is also the Director of IBD-passport: A web-based global non-for-profit support program for traveling IBD patients.

Johan Burisch
Hvidorvre University Hospital
Gastro Unit
Kettegards alle 30
2650 Hvidorvre

Short Biography

Johan Burisch earned his medical degree from the University of Copenhagen in 2010. Subsequently, in 2013, he completed his PhD, followed by the attainment of a Doctor of Medical Sciences degree in 2022, all from the same university.
His research focused on the epidemiology of Inflammatory Bowel Disease (IBD) in Europe. Dr. Burisch has also held postdoctoral positions at Mount Sinai Hospital in New York, USA, as well as at the Danish Center for E-health and Epidemiology.
He currently serves as a staff member at the Gastro-unit at Hvidovre University Hospital in Denmark and is affiliated with the Danish Center for Inflammatory Bowel Disease in Children, Adolescents, and Adults.

Dr. Burisch ‘s research interests encompass various aspects of IBD, including the natural disease progression and prognosis among patients in Europe, the influence of modern treatments and treatment strategies on patient outcomes, and the identification of prognostic and predictive markers for treatment response and disease prognosis in newly-diagnosed and treatment-naive patient populations. He is also involved in the development of novel monitoring tools, such as e-Health solutions.


Silvio Danese

Director, Gastroenterology and Endoscopy
IRCCS Ospedale San Raffaele
University Vita-Salute San Raffaele

Andre D'Hoore
University Hospitals Leuven
Dpt. Abdominal Surgery
B-3000 Leuven

Iris Dotan
Rabin Medical Center
Director, Division of Gastroenterology
49100 39 Jabotinski St. Petah Tikva Israel

Short Biography
  • Director, Division of Gastroenterology, Rabin Medical Center, Petah Tikva, Israel.
  • Affiliated with Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
  • Past president, Israeli Association of Gastroenterology and Liver Diseases.
  • IOIBD chair
  • Translational mucosal immunology, Nutrition in IBD, novel therapy.
  • Establish the comprehensive pouch clinic; biomarker based multidisciplinary team approach for treatment and research in IBD; Mediterranean diet treatment and prevention.
  • Grants: The Leona M. and Harry B. Helmsley Charitable Trust; IPNP- ISRAEL SCIENCE FOUNDATION

Geert D'Haens
Inflammatory Bowel Disease Centre
Academic Medical Centre
1105 AZ Amsterdam
The Netherlands

Axel Dignass
Agaplesion Markus Hospital
Director, Department of Medicine
Wilhelm-Epstein-Str. 4
D-60431 Frankfurt am Main

Short Biography

Axel Dignass is Head of the Department of Medicine and Professor of Medicine and Gastroenterology at the Agaplesion Markus Hospital, Goethe University in Frankfurt. Axel Dignass is deputy scientific secretary of IOIBD and Honorary Member of the European Crohn’s and Colitis Organisation (ECCO). He has been Education Officer and Governing Board Member of ECCO and treasurer and governing board member of the German GI society (DGVS). He is past President of United European Gastroenterology (UEG) and incoming president of the German GI society 2024.

His research interests focus on inflammatory bowel disease (IBD), therapeutic strategies in IBD, anti-inflammatory, immunosuppressive and biologic therapy in IBD, anaemia in IBD, molecular mechanisms of intestinal wound healing and cell migration, medical guidelines, and medical education.

Axel Dignass has been the principal investigator on numerous clinical studies evaluating the efficacy and safety of new therapeutic agents, diagnostic tools, and treatment strategies in anemia and IBD.

Marla Dubinsky
Dpt. Pediatrics
Mount Sinai Hospital
NY10029 Box 1134
New York

Short Biography
  • Professor, Pediatrics and Medicine 
  • Chief, Division of Pediatric Gastroenterology and Nutrition, Mount Sinai Kravis Children’s Hospital
  • Co-director Susan and Leonard Feinstein IBD Clinical Center, Icahn School of Medicine Mount Sinai New York
  • IOIBD Education Secretary 
  • Pediatrics, Fertility and pregnancy, Therapeutic Drug Monitoring, Clinical Trials 
  • Director of the Marie and Barry Lipman Preconception and a Pregnancy Planning Clinic, Lead investigator for Road to Prevention Study, Precision medicine focused research 
  • Co-Founder Trellus Health Inc. 


Christoph Gasche

Medical University Vienna
Internal Med. Clinic III
A-1090 Vienna

Richard Gearry
University of Otago
8140 Christchurch
New Zealand

Short Biography

Richard Gearry is Professor of Medicine at the University of Otago, Christchurch, and Consultant Gastroenterologist at Christchurch Hospital. He undertook medical training and PhD studies at the University of Otago, Christchurch and Fellowships at Box Hill Hospital, Melbourne, Australia and St Mark’s Hospital, London, UK.

He has held positions as Head of Department of Medicine, University of Otago, Christchurch, Medical Director of the New Zealand Nutrition Foundation and is a current Medical Advisor to Crohn’s and Colitis New Zealand.

His research interests include IBD epidemiology, biomarkers, clinical outcomes, and nutritional aspects of IBD. He has published over 300 papers in scientific journals and has been involved in the publication of numerous IBD regional and international guidelines and consensus statements. Richard has received research funding from the Health Research Council of New Zealand, Ministry for Business Innovation and Enterprise and the Helmsley Charitable Trust.

Richard Co-Chairs the IOIBD Globalization Cluster and is the Organiser for the IOIBD Annual Scientific Meeting to be held in Auckland, New Zealand in 2025. He lives in Christchurch with his wife and three children.


Jonas Halfvarson
Orebro University
Dept Gastroenterology
SE-70185 Orebro University Hospital Orebro

Short Biography

Jonas Halfvarson is a consultant Gastroenterologist at Örebro University hospital and Professor of Gastroenterology at Örebro University, Sweden. Prof Halfvarson graduated as MD at the University of Uppsala, Sweden, before training in gastroenterology at Örebro University Hospital. He undertook research with Professor Gunnar Järnerot and obtained his PhD, entitled ‘Inflammatory bowel disease in twins; Studies of genetics and environmental factors’ in 2004. Part of his PhD was done at the University of Oxford, UK with Professor Derek Jewell.

Prof Halfvarson was named a Rising Star in Gastroenterology at the United European Gastroenterology Week (UEGW) in 2011. He has served as a board member (Treasurer) of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD) 2017-2023. Currently, he heads the taskforce for genetics and pathophysiology at the Swedish Organisation for the Study of Inflammatory Bowel Diseases (SOIBD), serves as the Scientific Director of the Swedish national quality registry for IBD (SWIBREG) and is also a member of the management committee of the international IBD genetic consortium (IIBDGC).

He has contributed to numerous impactful clinical studies across multiple facets of IBD, and has over 200 publications. His current research focuses on biomarkers in IBD, from both a clinical and mechanistic perspective. His work has been funded by the EU (7th Framwork Programme, Horizon 2020 and IMI2), the Swedish Foundation for Strategic Research, Nordforsk, Vinnova, and the Swedish Research Council.

Ailsa Hart
St. Mark's Hospital
IBD Unit
HA1 3UJ Harrow Middlesex
United Kingdom


Prof. Dr. Marietta Iacucci
Cork University Hospital
Prof. Of Gastroenterology University College Cork
Clinical Sciences Building
T12 EC8P
Cork Ireland


MD Vipul Jairath
Schulich School of Medicine & Dentistry, Western University
Prof. Department of Medicine, chair IBD Clinical Research
London Health Sciences Center
Room A10-219, University Hospital,
London, Ontario


Gilaad G. Kaplan,
Division of Gastroenterology and Hepatology
Cumming School of Medicine, University of Calgary
Teaching, Research, and Wellness Building
T2N 4Z6 3D03-18 Alberta Calgary

Short Biography

Dr. Kaplan is a Professor in the Cumming School of Medicine at the University of Calgary. Dr. Kaplan is a gastroenterologist who is internationally renowned for studying the global epidemiology of inflammatory bowel disease (IBD). Clarivate, Web of Science (2020-2022) named Dr. Kaplan a Highly Cited Researcher in recognition of being in the top one percent of cited researchers. In 2021, Dr. Kaplan received Crohn’s and Colitis Canada’s Research Leader Award and was inducted into the Canadian Academy of Health Sciences. He is a Killam Laureate, receiving the Killam Annual Professor Award in 2022. His research has been widely cited in the news media including Time Magazine, BBC, The New York Times, and Scientific American

Paulo Gustavo Kotze
Colorectal Surgery Unit
Health Sciences Postgraduate Program
Cajuru University Hospital
Catholic University of Paraná
Rua Bruno Filgueira, 369 cj
1205 Curitiba

Short Biography
  • Professor of the Postgraduate Health Sciences Program at the Catholic University of Paraná. 
  • Adjunct Senior Professor of Surgery of the Colorectal Surgery Unit at Cajuru University Hospital of the Catholic University in Curitiba, Paraná, Brazil. 
  • Masters' Degree on Surgery at the Catholic University in 2008 
  • PhD degree studying the influence of biological therapy on surgical outcomes in Crohn´s disease, in the University of Campinas, in São Paulo, Brazil (UNICAMP) in 2015. 
  • IBD advanced visiting fellow at the University of Calgary (Cumming school of medicine), Canada, for the period of 2017-2018. 
  • Former committee member of S-ECCO (surgeons of ECCO) from 2015-2018 and a member of the ECCO EduCOM (educational committee), from 2018-2022.

Arthur Kaser
University of Cambridge
Dpt of Medicine
CB2 0QQ Addenbrooke's Hospital, Hills Road
United Kingdom

Ioannis Koutroubakis
University Hospital Herakkion
Dpt. Gastroenterology
71110 Heraklion

Short Biography
  • Professor of Gastroenterology, School of Medicine, University of Crete
  • Head of the Department of Gastroenterology University Hospital Heraklion Heraklion, Crete, Greece
  • Director of the Division of Internal Medicine University Hospital Heraklion Heraklion, Crete, Greece
  • Adjunct Professor of Medicine, School of Medicine, Department of Medicine, University of Pittsburgh, USA
  • Member of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD, 2004-)
  • National representative of Greece for European Crohn’s and Colitis Organization (ECCO, 2013-2019)
  • President of the governing board of the Hellenic IBD Association (EOMIFNE, 2017-2020)
  • Editor-in-Chief of Annals of Gastroenterology (2011-)
  • Main research interest on inflammatory bowel disease (epidemiology, genetics, environmental factors, biomarkers, anemia, thrombosis)


Peter Lakatos
McGill University
Dir. IBD Centre
H3G 1A4 1650 Ave. Cedar, D16.173.1 / Koranyi S 2A
Quebec Montreal

Short Biography

Peter Lakatos is professor of medicine and director of IBD Centre at McGill University Health Centre. Until January 2017 he was head of the gastroenterology/hepatology ward, endoscopy unit and outpatient clinic at the 1st Department of Medicine, Semmelweis University in Budapest, Hungary.
He is member of scientific committee of CIRC, and an IOIBD member. He is one of the founders and leader of the Hungarian IBD Study Group. He is associate editor in Journals  Crohn’s Colitis, Digestive Liver Diseases and World Journal of Gastroenterology and section editor in Inflammatory Bowel Diseases.
During his career he published more than 400 original papers and reviews and 26 book chapters.
His primary research interest is the epidemiology, quality of care, outcomes research and optimization of old and new medical therapies in IBD.

James Lindsay
Bart's Health NHS Trust
The Royal London Hospital
E1 1BB Whitechapel London
United Kingdom

Short Biography

James Lindsay is the Professor of Inflammatory Bowel Disease at Barts and the London School of Medicine and Dentistry, Queen Mary University of London, and a Consultant Gastroenterologist at Barts Health NHS Trust. Along with a full multidisciplinary team he runs the adolescent and adult IBD service at The Royal London Hospital.

Professor Lindsay serves on the British Society of Gastroenterology IBD Clinical Trials Steering Group and is Chief Investigator for a series of investigator-led and commercial clinical trials in IBD.  In addition, he leads a program of translational mucosal immunology research investigating leukocyte trafficking, monocyte / macrophage differentiation and the control of fibrosis in IBD.

He has previously been the Education Officer and a member of the Governing Board of the European Crohn’s and Colitis Organisation (ECCO).  Before this he served as ECCO e-learning ambassador and chair of the ECCO Education Committee. He has also chaired working groups for the ECCO consensus on the management of Crohn’s disease and ulcerative colitis. He is a member of the International Organisation of IBD (IOIBD)

Edward Loftus
Mayo Clinic
Div. Gastroenterology & Hepatology
MN 55905 MN Rochester

James D. Lewis
University of Pennsylvania
Dpt. of Medicine
PA19104 423 Guardian Drive PA

Short Biography

James Lewis, MD, MSCE, is Professor of Medicine and Epidemiology and co-Vice-Chief for Research in the Division of Gastroenterology and Hepatology at the University of Pennsylvania’s Perelman School of Medicine. He is Chief of Gastroenterology at Penn Presbyterian Medical Center, Associate Director of the University of Pennsylvania’s Inflammatory Bowel Disease Program, a Senior Scholar in the Center for Clinical Epidemiology and Biostatistics and Director of Penn’s NIH-funded T32 Training Grant in GI Epidemiology. He serves as the director of the Human Research Core of Penn’s Center for Nutrition Science and Medicine and co-director of the Biomedical Data Science Core in the Center for Molecular Studies of Gastrointestinal and Liver Disease.

Dr. Lewis’s research program focuses on improving outcomes for patients with inflammatory bowel disease by optimizing the use of medical therapies, diagnostic tests, and nutrition. His research includes investigator-initiated clinical trials, pharmacoepidemiology studies and decision modeling. He is currently the lead scientist for the Crohn’s & Colitis Foundation’s IBD Plexus Research Program and co-PI of the SPARC IBD cohort study. His work has been funded by the NIH, AHRQ, PCORI, CDC, Crohn’s & Colitis Foundation, Helmsley Charitable Trust, and corporate sponsors.

Edouard Louis
University Hospital CHU Liege
Dpt. Gastroenterology
B-4000 Liege

Short Biography

Edouard LOUIS was born in Belgium, on April 1st, 1965. He obtained the title of Medical Doctor with Magna cum laude in June 1990, at the state university of Liège, Belgium. Part of his training in Gastroenterology, was done at the Oxford University, UK (1994-1995). He graduated in June 1996 as a specialist in Gastroenterology.
Edouard LOUIS obtained his Ph.D. in 1996, as a fellow of the National Funds for Scientific Research of Belgium (FNRS), with a work on gastrointestinal immunization with soluble antigens. He obtained his “aggregation” for University teaching in 1999 with a work on the characterisation and genetics of immuno-inflammatory reaction in Crohn’s disease.
Edouard LOUIS was promoted associate Professor of Gastroenterology at Liège University in October 2002 and Senior Research Associate at the National Funds for Scientific Research of Belgium (FNRS) in October 2005.
He has been Professor of Gastroenterology and Head of the Gastroenterology department at Liège University hospital since October 2010. He has been the Dean of Medicine faculty at Liège university (2021-ongoing).
His Scientific work contributed to more than 300 papers in peer reviewed international journals (H-Index Google Scholar 2022=88).

He has been General Secretary of the Belgian Society of Gastroenterology 2005-2009, President of the Belgian IBD Research group (2008-2011), member of the board of the GETAID (groupe d’étude thérapeutique des affections inflammatoires digestives) (2004-ongoing), president of the GETAID (2012-2015), member of the Scientific Committee of the ECCO (European Crohn and Colitis Organisation) (2010-2013), Chair of this Scientific Committee (2013-2015), ECCO representative at the UEG scientific committee (2022-ongoing), associate editor of Journal of Crohn’s and Colitis (2018-ongoing), and member of the IOIBD since 2014.

Milan Lukas
Ceskomoravska 2510/19
Prague 9
Czech Republic



Uma Mahadevan
University of California San Francisco, Department of Medicine, Colitis and Crohn’s Disease Center
1701Divisadero Street #120
CA 94115 San Francisco

Short Biography
  • Lynne and Marc Benioff Professor of Gastroenterology
  • Director, Colitis and Crohn’s Disease Center, University of California, San Francisco
  • Past Chair, IMIBD, American Gastroenterology Association
  • AGA, IMIBD Research Mentor Award 2022
  • Sherman Prize Winner 2022
  • Pregnancy and Drug Safety in Inflammatory Bowel Disease
  • Chair, Global Consensus on Management of Pregnancy and IBD
  • Grants: The Leona M. And Harry B. Helmsley Charitable Trust, Fisher Family


Dermot McGovern
Cedars-Sinai Medical Center
Dpt. Gastroenterology
CA 90048 Thalians California
Los Angeles

​Pär Myrelid MD PhD
Linköping University Hospital
Dept of Surgery, Unit of Colorectal Surgery
SE 581 85 Linköping

Short Biography
  • Senior consultant and associate professor Department of Surgery,
    Linköping University Hospital, and Department of Biomedical and Clinical Sciences,
    Linköping University, Linköping, Sweden.
  • Past president, Swedish Society of Colorectal Surgery.
  • Chair Swedish Organisation for the Study of Inflammatory Bowel Diseases.
  • Chair Surgeons of European Crohn´s and Colitis Organisation (S-ECCO).
  • Co-founder and chair Swedish Inflammatory Bowel Disease Registry (SWIBREG).
  • IOIBD Treasurer.
  • Restorative surgery in ulcerative colitis, abdominal and perianal surgery in Crohn’s disease, nutrition in IBD, and epidemiology in IBD.

Fernando Magro
Instituto de Farmacologia
Departamento de Biomedicina
Hernâni Monteiro 4200-319

Short Biography

Fernando Magro, a Gastroenterology consultant from Porto, Portugal, serves also as the Director of the Clinical Pharmacology Unit and is a key medical prescription monitor and Pharmacy Committee consultant at São João University Hospital Center. He is also a founding member, board member, and research head of the Portuguese IBD Study Group (GEDII).

In academia, he holds the position of Associate Professor with tenure at the Faculty of Medicine of the University of Porto. On the international stage, he was appointed President-Elect of the European Crohn's and Colitis Organization (ECCO) and serves as an Associate Editor of the United European Gastroenterology Journal (UEGJ) while being a member of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD).

Fernando Magro has published over 300 manuscripts and has more than 19,000 citations. Since 1995, his primary focus has been on IBD and intestinal epithelial inflammation. His collaborative work with GEDII and FMUP colleagues extends to therapeutic drug monitoring, histology, and the microbiome of IBD patients.

MD PhD Aleixo Muise
Hospital for Sick Children
Division Gastroenterology, Hepatology and Nutrition
555, University Avenue
M5G 1X8

Short Biography

Dr. Aleixo Muise, is a Professor in the Departments of Biochemistry and Pediatrics at the University of Toronto and is a Senior Scientist in the Cell Biology Program, Research Institute, Hospital for Sick Children. He is co-Director of the SickKids IBD Centre and holds the Canada Research Chair in Pediatric Inflammatory Bowel Disease.

His clinical and research focus centers on understanding the pathogenesis of severe forms of intestinal disease in very young children, including inflammatory bowel disease. Unfortunately, these patients often do not respond to conventional therapies, suffer significant morbidity and are at risk of premature death. Using state-of-the-art techniques to characterize molecular defects, including next-generation sequencing, cellular and animal models and human organoids, his group has identified TTC7A, PLVAP, ARPC1B, SYK, and other gene variants as the cause for monogenic intestinal diseases. The overall goal of his lab is to develop a precision medicine approach to better treat IBD patients by elucidating the underlying genetic/functional causes.


Markus F. Neurath
University Hospital Erlangen
Dpt. of Medicine 1
D-91054 Erlangen

Siew Ng
Prince of Wales Hosp. /Chines Univ. of Hong Kong
Dpt. Medicine & Therapeutics
30-32 Ngan Shing Street Hong Kong
Hong Kong

Short Biography

Professor Siew Ng is Croucher Professor in Medical Sciences, Professor at the Department of Medicine and Therapeutics and Assistant Dean (Development) of Faculty of Medicine, The Chinese University of Hong Kong. She is also Director for the Microbiota I-Center.    

Her main research interests include identification of microbial targets for biomarker development and modulation of microbiome for therapeutic applications in inflammatory bowel disease. She brought together over 20 countries and 30 centers in Asia-Pacific to study IBD.  She is developing a 100K mother-baby longitudinal microbiome cohort in China for IBD prevention.

She has published over 330 full scientific articles in Nature Genetics, Nature Communications, Microbiome, Lancet, Cell Host & Microbes, Gut and Gastroenterology. Her work in IBD has been highlighted by two U.S. journalists in Nature and Environmental, Health and Science. She was past Scientific Secretary of the International Organization of IBD and past President of Hong Kong IBD Society. She is Associate Editor of Gut.  

Prof Ng was awarded Joanna and David Sachar International Award and Visiting Professorship (Mount Sinai, New York) in 2019, Sir Francis Avery Jones Award and Visiting Professorship (St Mark’s Hospital, London) in 2019, Cleveland Clinic IBD Global Visiting Professorship in 2021, and Highly-cited Researchers by Clarivate in three consecutive years 2020, 2021, 2022.


Remo Panaccione
University of Calgary
IBD Group, Dpt. Medicine-GI
T2N 4N1 Teaching Research and Wellness Centre

Short Biography

Dr/Prof Remo Panaccione is a Professor of Medicine and the Director of the Inflammatory Bowel Disease Unit at the University of Calgary, Calgary, Canada. He serves as the Dean of MD Admissions and Director of the IBD Fellowship Program. He holds the  Crohn’s Colitis Canada Endowed Research Chair in Inflammatory Bowel Disease.  He serves as an executive member for the IOIBD.

He is the 2020 Crohn's Colitis Canada Outstanding Physician of the Year is recognized as a 2020-23 Clarivate Research Scholar for being cited in the top 1% of researchers in the world. He has co-authored over 350 manuscripts, 20 book chapters, and 625 abstracts including publications in journals such as the New England Journal of Medicine, Lancet, JAMA, Nature, and Annals of Internal Medicine. 

Prof. Panaccione’s main research interest is the design and implementation of clinical trials. He has been the principal investigator on several studies evaluating the efficacy and safety of new therapeutic agents in subjects with IBD.

Laurent Peyrin-Biroulet
CHU de Nancy, Dpt. Gastroenterology
54500 Vandoeuvre

Yves Panis
Colorectal Surgery Center and Paris IBD Center
Groupe Hospitalier Privé Ambroise Paré-Hartmann
48 ter boulevard Victor-Hugo

Short Biography
Born in 1961, november 9th, I am Professor of Digestive Surgery since 1997 and I was Head of the Department of colorectal surgery in Beaujon Hospital (University of Paris-Cité) from 2007 to the end of october 2022.

I moved in november 2022 to the Groupe Hospitalier Privé Ambroise Paré-Hartmann, with Professors Bouhnik and Tréton, in the new Paris IBD Center, dedicated to IBD patients. I will also continue to do colorectal cancer surgery.

In clinics, my topics (for both clinical practice and publications) are focused on colorectal surgery, with special interest in IBD, rectal cancer, laparoscopy and robotic surgery. At the end of september 2023, I have 486 citations in PubMed, with an H index of 83. In clinical research, I have organised as principal investigator, 6 multicentric randomized studies (3 already published) on early stoma closure, bowel preparation in rectal cancer surery, on bladder drainage in rectal cancer surgery, fast track program in laparoscopic colorectal cancer surgery, in one-trocart colonic surgery, and in prostethic mesh after temporary stoma closure after laparoscopic TME. Among my published papers, I have published a paper on ileal pouch anal anastomosis in Lancet journal in 1996, two papers on Annals of Surgery on segmental reversal of the small bowel for the treatment of short bowel syndrome, and one in Annals of Surgery suggesting the very low risk of infertility after laparoscopic IPAA. As member of the board of S-ECCO, I have participate to the recent guidelines on surgical treatment of ulcerative colitis, and as a member of EAES to the recent guidelines on early rectal cancer. I was up to the end of 2016 president of the GRECCAR Group (French group on rectal cancer treatment) and of the GETAID Surgery (French group on IBD surgery).


Zhihua Ran
Zhou Pu Hospital,
Shanghai University of Medicine & Health Sciences
1500 Zhou Yuan Road, Department of Gastroenterology
Shanghai, China

Short Biography

Dr. Zhihua Ran is the Professor of Medicine, Chief of Department of Gastroenterology and Digestive Endoscopy Center, Zhou Pu Hospital, Shanghai University of Medicine & Health Sciences. Currently, he is the member of International Organization for the Study of Inflammatory Bowel Disease (IOIBD), Co-founder and first president of BRICS IBD Consortium, governing board member of Asian Organization for Crohn’s and Colitis (AOCC), director of IBD Group, Chinese Association of Digestive Disease, Director of Shanghai IBD Research Center. associated editor of Inflammatory Intestinal Disease, Chinese Journal o Inflammatory Bowel Disease..

His major clinical and research activities have been focused in the field of gastrointestinal diseases, particularly in inflammatory bowel disease, such as immunopathogenesis of IBD, therapeutic monitoring of IBD etc. As a tutor of Doctorial student, he had published a total of 158 papers and reviews in Chinese Journal and 118 SCI Journals, edited two scientific monographs, manuscript reviewer of 18 SCI Journals. He is the project leader of more than 15 scientific research projects, including five National Natural Science Foundation of China, and two joint projects with Germany. He had received Prof. Anne Ferguson Lecture award from University of Edinburgh in November 2016, Shanghai Conference Ambassador by Shanghai Municipal Tourism Administration in October 2017.

Feza Remzi
Northwell Health
Vice President, Center for Advanced IBD Care
2001 Marcus Ave. Suite S50
New Hyde Park, NY, 11042

David Rubin
Director, Inflammatory Bowel Disease Center
University of Chicago Medicine
5841 S. Maryland Ave. | MC4076
Chicago, IL 60637

Short Biography

David T. Rubin is the Joseph B. Kirsner Professor of Medicine, Chief of the Section of Gastroenterology, Hepatology & Nutrition at the University of Chicago Medicine.
He earned a medical degree with honors at The University of Chicago Pritzker School of Medicine where he also completed his residency in internal medicine and fellowships in gastroenterology and clinical medical ethics.
He is associate faculty member at the MacLean Center for Clinical Medical Ethics, associate investigator at the University of Chicago Comprehensive Cancer Center and a member of the University of Chicago Committee on Clinical Pharmacology and Pharmacogenomics.
He is the chair of the National Scientific Advisory Committee of the Crohn’s & Colitis Foundation.
He is the deputy chair of the Executive Committee of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD).

Dr. Rubin twice received the ACG’s Governor’s Award of Excellence in Clinical Research (2003 and 2013), and in 2020, Dr. Rubin received the Sherman Prize for Excellence in Crohn’s and Colitis.
He is an Associate Editor of the journal Gastroenterology and Editor-in-Chief of the ACG On-Line Education Universe. Dr. Rubin is an editor of Curbside Consultation in IBD (third ed), senior editor of Sleisenger and Fordtran’s Gastrointestinal and Liver Disease(twelfth ed), and an author on >500 articles on management of IBD, including the 2019 ACG Guidelines for ulcerative colitis.
He has a verified Twitter account @IBDMD with over 20,500 followers.

Walter Reinisch
Medical University Vienna
Dpt. Internal Medicine III
A-1090 Vienna

Short Biography

Dr Walter Reinisch is the Director of the Inflammatory Bowel Disease Study Group at the Medical University of Vienna in Vienna, Austria. He is a founding member of the European Crohn’s and Colitis Organisation (ECCO) and was assigned as honorary member after having contributed in various positions. He was an active member in the Scientific and Public Affairs Committee of the United European Gastroenterology (UEG) and has headed the Austrian Inflammatory Bowel Disease Study Group. Dr. Reinisch is also a member of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD). Previously, he held the Audrey Campbell Chair in UC Research at McMaster University, Ontario, Canada from 2013 to 2016.

Gerhard Rogler
University Hospital Zurich
Dpt. Gastroenterology & Hepatology
CH-8091 Zurich

Short Biography
  • Gerhard Rogler (* July 22, 1963) finished medical school at the University of Ulm/Germany in 1992.
  • In addition to the medical doctorate, which was awarded the Wolf-Boas Prize of the German Society for Digestive Diseases and the doctorate prize of the Medical Faculty of the University of Ulm, he also received his PhD in philosophy in 1996 after studying in Ulm and Augsburg.
  • In 1999 he received a Heisenberg grant from the German Research Foundation.
  • From 2000 to 2001 Gerhard Rogler was visiting scholar at the Center for Molecular Medicine, University of San Diego, California.
  • In 2003, he was appointed assistant professor and head of the gastroenterology department at the University of Regensburg.
  • In 2007 Gerhard Rogler was appointed to a professorship for gastroenterology at the University of Zurich.
  • In 2014, Gerhard Rogler became full Professor of Gastroenterology at the University of Zurich. He was also elected to the Governing Board of the European Crohn’s and Colitis Organization.
  • 2017 he became Chair of the Department of Gastroenterology and Hepatology in Zurich.
  • Gerhard Rogler has published more than 650 PubMed-listed manuscripts. He has received awards such as the "Honorary Prize" of the Swiss Gastroenterology Society, the LeVaillant award and an honorary membership of the South African Society for Gastroenterology (SAGES).
  • In 2019 Gerhard Rogler was elected to the German Academy of Sciences (Leopoldina).


Bruce Sands
Icahn School of Medicine at Mount Sinai
Div. of Gastroenterology
NY 10029 Box 1069 NY
New York

Short Biography
Bruce Sands, MD, MS is the Dr. Burrill B. Crohn Professor of Medicine at the Icahn School of Medicine at Mount Sinai, New York, NY and Chief of the Division of Gastroenterology of the Mount Sinai Health System.

Dr. Sands is an expert in the management of inflammatory bowel diseases (IBD) and has earned an international reputation for his care of patients with complex and refractory disease. Dr. Sands was awarded his BA and MD from Boston University, and trained in internal medicine at the Hospital of the University of Pennsylvania. After completing GI fellowship at the Massachusetts General Hospital, he joined the faculty of Harvard Medical School and served as the Acting Chief of the Gastrointestinal Unit at MGH before moving to Mount Sinai in 2010 as Chief of the Dr. Henry D. Janowitz Division of Gastroenterology. Dr. Sands is a past chair of the Clinical Research Alliance of the Crohn’s & Colitis Foundation of America and served as Chair of the Immunology, Microbiology and Inflammatory Bowel Disease Section of the American Gastroenterological Association. Additionally, Dr. Sands was the Chair of the International Organization for the Study of IBD (IOIBD). In 2016 Dr. Sands was awarded the Dr. Henry Janowitz Lifetime Achievement Award from the Crohn’s & Colitis Foundation, that organization’s highest honor. In 2023, Dr. Sands was the recipient of the Jacobi Medallion, Mount Sinai’s highest award, given for distinguished contributions to the field of medicine or extraordinary service to the Hospital, Health System, School of Medicine, or alumni community.

Dr. Sands is widely recognized for his innovative treatment of Crohn’s disease and ulcerative colitis and for his expertise in the clinical investigation of new therapeutics. Dr. Sands’ research also explores IBD epidemiology and includes the creation of a population-based cohort of IBD in Rhode Island, a project funded by both the National Institute of Health and the Centers for Disease Control and Prevention. Dr. Sands has served as an Associate Editor for the journal Gastroenterology, and has published more than 300 original manuscripts in leading journals such as Gut, Gastroenterology, and the American Journal of Gastroenterology. He was the lead investigator of the landmark studies ACCENT 2, UNIFI and VARSITY, published in the New England Journal of Medicine, and SEAVUE, published in The Lancet.

Corey Siegel
Dartmouth-Hitchcock Medical Center
Section of Gastroenterology & Hepatology
03756 NH Lebanon

Short Biography

Corey A. Siegel, MD, MS, is the Section Chief of Gastroenterology and Hepatology and the Co-Director of the Inflammatory Bowel Disease (IBD) Center at the Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire. He is the Constantine and Joyce Hampers Professor of Medicine and a Professor at The Dartmouth Institute for Health Policy and Clinical Practice at the Geisel School of Medicine at Dartmouth.

Dr. Siegel’s research interests include understanding risk/benefit tradeoffs in IBD, developing models to predict outcomes in Crohn’s disease, creating tools to facilitate shared decision making, expanding telemedicine services to patients with IBD living in rural locations, and improving the quality of care delivered to patients with IBD.
He has been funded by the NIH, AHRQ, the Crohn’s and Colitis Foundation, and the Leona M. and Harry B. Helmsley Charitable Trust for this work.  
He has lectured nationally and internationally and published numerous journal articles and book chapters on this and other topics in IBD.
Dr. Siegel is the founder of the BRIDGe group, an international research collaborative of IBD investigators. 
He is currently the co-chair of the Crohn’s and Colitis Foundation Quality of Care Program (IBD Qorus).
Dr. Siegel was inducted into the International Organization for the Study of IBD (IOIBD) in 2013.
He lives in Hanover, New Hampshire with his wife and three boys.

Mark Silverberg
Mount Sinai Hospital
University of Toronto
M5G 1X5 Ontario

Antonino Spinelli
Humanitas University
Director Div. Colorectal Surgery
Full Professor
20089 Rozzano Milano

Short Biography

Prof. Spinelli is the Director of the Division of Colon and Rectal Surgery and Full Professor of Surgery at Humanitas University, Rozzano Milano, Italy. He trained for two years (2003-2005) at the University of Berlin – Charité, and later he gained his PhD on enhanced recovery protocols in colorectal surgery.

He is dedicated to the development of innovative techniques in minimally invasive colorectal surgery. Prof. Spinelli is Associate Editor at Diseases of the Colon and Rectum, at Journal of Anus, Rectum & Colon and was Associate Editor at Colorectal Disease (2014 – 2023). He is Member of the Editorial Board of the Journal of Crohn’s Colitis and of Coloproctology.

He authored/co-authored more than 370 PubMed-indexed publications (IF > 3000, H Index Scopus 53, H Index Google Scholar 63).

Prof. Spinelli currently serves as General Secretary and President in Waiting of the European Society of ColoProctology (ESCP) and is Fellow of European Surgical Association (F-ESA), Fellow of the European Board of Surgery (FEBS), Fellow of the American Society of Colon and Rectal Surgery (FASCRS) and Member of the International Organization for the study of Inflammatory Bowel Disease (IOIBD).

In 2016 he was awarded with the Honorary Fellowship of the Czech Society of Surgery and is Honorary Member of the Brazilian College of Digestive Surgery (CBCD) since 2017.

Stefan Schreiber
University Hopital Schleswig Holstein
Clinic for Internal Medicine
24105 Kiel

Short Biography

Professor Stefan Schreiber was born in 1962 and received medical degrees in 1988 at University of Hamburg. He is a certificated internist and gastroenterologist. Following postdoctoral research fellowships in the Departments of Gastroenterology at Washington University and University of Pennsylvania, he became junior Faculty in the Department of Gastroenterology at the Charité University Hospital in Berlin, Germany. In 1996 he assumed the position of an associated professor in the Clinic for General Internal Medicine at the University Hospital Schleswig Holstein (UKSH), Kiel University, Germany.

Professor Schreiber´s present position is a Full Professor of Medicine. He is the director of the Department of Internal Medicine I and head of the Institute of Clinical Molecular Biology, both at Kiel University. Moreover he is the speaker of the German DFG cluster of excellence “Precision Medicine in Chronic Inflammation”, PMI. In 2022, he was awarded the title of Doctor Honoris Causa by the Lithuanian University of Health Sciences.

His research interests include the molecular genetics and pathophysiology of chronic intestinal inflammation, the clinical development of new therapies for IBD and the discovery of mechanisms that control ageing. Memberships in professional societies include the American Gastroenterological Association, the European Society of Clinical Investigation, the Scientific Committee of the German Crohn’s and Colitis Foundation, the German Society for Internal Medicine and the German Society for Gastrointestinal and Metabolic Disorders. Professor Schreiber has been an invited lecturer and held chairmanships at multiple national and international meetings. He is joint editor of some famous international journals in IBD and genetics and has to his credit more than 1000 original publications in different leading scientific journals.

Britta Siegmund
Charité Universitäts-medizin Berlin
Medizinische Klinik für Gastroenterologie, Infektiologie, Rheumatologie 12200 Hindenburgdamm 30

Professor Harry Sokol, MD PhD
Gastroenterology Department
Saint-Antoine Hospital
184 Rue du Faubourg Saint-Antoine
75571 Paris cedex 12

Short Biography

Harry Sokol is Professor in the Gastroenterology department of Saint-Antoine Hospital (APHP, Sorbonne Université, Paris, France). He is an internationally recognized expert in the inflammatory bowel disease (IBD) and gut microbiota fields, in which he has published more than 300 papers in major journals. He is the coordinator of the Paris Center for Microbiome Medicine, the current president of the French group of Fecal Microbiota Transplantation, and the head of the APHP Fecal Microbiota Transplantation Center. His work on the role of gut microbiota in IBD pathogenesis led to landmark papers, including the identification of the pivotal role of the commensal bacteria Faecal bacterium prausnitzii in gut homeostasis and IBD. Currently, his work focuses on deciphering gut microbiota–host interactions in health and disease to better understand their role in pathogenesis and develop innovative treatments. Harry received two grants from the European Research Council (ERC) in 2016 and 2022, and he is currently Associate Editor for Gastroenterology. Since 2020, he is recognized as a Highly Cited Researcher (Clarivate, Web of Science).


Dan Turner
Shaare Zedek Medical Center
Dpt. Pediatric GI
91031 Jerusalem

Short Biography

Dan Turner is Professor of Paediatrics at the Hebrew University of Jerusalem and holds a PhD degree in clinical epidemiology from the University of Toronto.
Professor Turner has been Head of the Juliet Keidan Institute of Paediatric Gastroenterology and Nutrition at the Shaare Zedek Medical Center, Jerusalem, since 2008, and is Director of the Paediatric Inflammatory Bowel Disease (IBD) Center and its research unit.

He has co-chaired the European Crohn’s Colitis Organization (ECCO) and European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) guidelines for the treatment of children with IBD and is an author of >250 manuscripts in the field.

Professor Turner is currently Vice-President of the international PIBD network, and an elected member of the International Organization of Inflammatory Bowel Diseases (IOIBD). He is the past chair of the Paediatric IBD Porto Working Group of ESPGHAN, and the Paediatric committee of ECCO.


Severine Vermeire
University Hospitals Leuven
Dpt of Gastroenterology
B-3000 Leuven

Short Biography

Séverine Vermeire obtained her MD from KU Leuven in 1995 and a PhD at the same University in 2001. She further trained at the Universidad Nacional de Asuncion, Paraguay (1993), at the Wellcome Trust Centre for Human Genetics in Oxford, UK (1997-1998) and at the Montreal General Hospital McGill University Canada in 2000–2001. She is staff member at the Gastroenterology & Hepatology Department of the University Hospital Leuven and Full Professor of Medicine at the KU Leuven. She is the Research Director of Biomedical Sciences at KU Leuven.

Prof. Vermeire is actively involved as principal investigator in RCTs with new therapeutic compounds and has been lead investigator on several of these programs. Her scientific work resulted in more than 600 peer-reviewed articles and focusses on the role of the microbiome and genetic susceptibility in IBD and on identifying prognostic and predictive signatures of treatment response. She participated in the International iCHOM consortium on development of Patient-Centered Outcomes for Inflammatory Bowel Disease.

She was awarded an Advanced H2020-European Research Council (ERC) Grant (2016-2022) and was President of the European Crohn’s and Colitis Organisation (ECCO) from 2014-2016 and of the Belgian IBD Research & Development (BIRD) Group from 2011-2013




Gillian Watermeyer
University of Cape Town
Division of Gastroenterology
Groote Schuur Hospital
Cape Town
South Africa


Takayuki Yamamoto
Yokkaichi Hazu Medical Center
Dpt. Surgery & IBD Center
510-0016 Yokkaichi

Jesus Yamamoto-Furusho

IBD Clinic, Dept of Gastroenterology
Nat. Institute Medical Scs & Nutrition
Nat. Autonomous Univ. Mexico (UNAM)
Vasco de Quiroga 15, Colonia Belisario
Domínguez Sección XVI,
Tlalpan, C.P. 14080, Mexico City, Mexico

Short Biography

Founder and Director of the Inflammatory Bowel Disease Clinic in the Department of Gastroenterology at the National Institute of Medical Sciences and Nutrition Salvador Zubirán in Mexico City.

Professor of Medicine in the Inflammatory Bowel Disease Clinical Fellow Program in the Faculty of Medicine at the National Autonomous University of Mexico (UNAM).

National Researcher Level 3 of the National Research System (SNI) by CONACYT.

First and Past President of the Academic and Research Group of Crohn’s and Ulcerative Colitis in Mexico (GAICCUM) and Pan American Crohn´s and Colitis Organization (PANCCO). Current President of the Mexican Gastroenterology Association (AMG).

His research has been focused on epidemiological studies of IBD in Mexico and Latin America, Translational medicine focused on the identification of transcriptomic and proteomic markers associated with clinical outcomes in IBD as well as clinical prognostic factors in IBD.

Awards: Gabino Barreda Medal (UNAM), Jon Isenberg Award (AGA), Miguel Alemán National Prize in Health (Mexico), Global Medical Discovery Distinction, among others.  


IOIBD Scientific Secretariat

Marischka Konings

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