Overview
Background
Prof Holtmann is a Clinical Academic in the field of Gastroenterology & Hepatology and Director of Clinical Innovation. He is also Director of the Department of Gastroenterology & Hepatology at the Princess Alexandra Hospital in Queensland and serves on the Board of Directors of the West Moreton Hospital and Health Service and UQ Healthcare. He is a Fellow of Royal Australian Collge of Physicians (RACP, Sydney), the Royal College of Physicians (RCP, London) and Fellow of the Australian Academy of Health and Medical Sciences (AAHMS, Canberra). Besides his Medical Qualifications he also obtained a Master of Business Administration. After completing the clinical training in Medicine and Gastroenterology at the University of Essen in Germany and the Mayo Clinic in Rochester, Minnesota in the United States, he has gained substantial leadership and managerial experience within the health care setting as Director of large Gastroenterology Departments, CEO and General Manager of a University Hospital and Health Care Facilities and has served on the Board of the University Hospital Essen in Germany. His research is in the field of Neurogastroenterology has resulted in peer reviewed publications in key journal including the NEJM, Lancet, Gastroenterology and Gut. More recently his rersearch focus is on the role of the gut microbiome, mucosal and systemic inflammation and brain-gut interactions.
Availability
- Professor Gerald Holtmann is:
- Available for supervision
- Media expert
Works
Search Professor Gerald Holtmann’s works on UQ eSpace
2026
Journal Article
Sa1759 DISORDERS OF GUT-BRAIN INTERACTION PRESENTING WITH SEVERELY ALTERED FOOD INTAKE BEHAVIOR (DGBI-AFIB): CHARACTERISATION OF A DISTINCT PATIENT GROUP
Shah, Ayesha, Moy, Naomi, Kulin, Dmitrii, Callaghan, Gavin, Fairlie, Thomas, Virgo, Kate, Hansen, Teressa J., Jones, Michael P., Koloski, Natasha A., Thapar, Nikhil and Holtmann, Gerald (2026). Sa1759 DISORDERS OF GUT-BRAIN INTERACTION PRESENTING WITH SEVERELY ALTERED FOOD INTAKE BEHAVIOR (DGBI-AFIB): CHARACTERISATION OF A DISTINCT PATIENT GROUP. Gastroenterology, 170 (6), S-1850. doi: 10.1016/s0016-5085(26)04460-4
2026
Journal Article
Tu1102 SINGLE ADMINISTRATION OF EP-104GI IN RESOLVE, A PHASE 1B/2 TRIAL IN EOSINOPHILIC ESOPHAGITIS, IMPROVES ENDOSCOPIC FEATURES OF INFLAMMATION AND FIBROSIS OVER 36 WEEKS
Gonsalves, Nirmala, Nguyen, Nam Q., Ko, Hin Hin, Ho, Vincent, Afif, Waqqas, Holtmann, Gerald J., Dellon, Evan S., Ravikumar, Pranali, Dye, Andrew, Malone, Amanda and Kowalski, Mark M. (2026). Tu1102 SINGLE ADMINISTRATION OF EP-104GI IN RESOLVE, A PHASE 1B/2 TRIAL IN EOSINOPHILIC ESOPHAGITIS, IMPROVES ENDOSCOPIC FEATURES OF INFLAMMATION AND FIBROSIS OVER 36 WEEKS. Gastroenterology, 170 (6), S-817. doi: 10.1016/s0016-5085(26)02202-x
2026
Journal Article
Tu1669 CHRONIC GASTROINTESTINAL SYMPTOMS AND SYSTEMIC COMORBIDITIES IN ADULT PATIENTS WITH HYPERMOBILITY SPECTRUM DISORDERS: A SYSTEMATIC REVIEW AND META-ANALYSIS
Kulin, Dmitrii, Shah, Ayesha, Fairlie, Thomas, Staller, Kyle, Nurko, Samuel, Keefer, Laurie, Aziz, Qasim, Drossman, Douglas A., Jones, Michael P. and Holtmann, Gerald (2026). Tu1669 CHRONIC GASTROINTESTINAL SYMPTOMS AND SYSTEMIC COMORBIDITIES IN ADULT PATIENTS WITH HYPERMOBILITY SPECTRUM DISORDERS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Gastroenterology, 170 (6), S-1946. doi: 10.1016/s0016-5085(26)04668-8
2026
Journal Article
Sociocultural aspects of the pathophysiology, clinical presentation and management of disorders of gut-brain interaction
Wong, Reuben K., Fang, Xiucai, Ghoshal, Uday C., Kashyap, Purna C., Mulak, Agata, Lee, Yeong Yeh, Sperber, Ami D. and Holtmann, Gerald (2026). Sociocultural aspects of the pathophysiology, clinical presentation and management of disorders of gut-brain interaction. Gastroenterology, 170 (6), 1190-1204. doi: 10.1053/j.gastro.2026.02.006
2026
Journal Article
Tu1700 PREVALENCE OF ORTHOSTATIC INTOLERANCE IN PATIENTS WITH DISORDERS OF GUT-BRAIN INTERACTION: A SYSTEMATIC REVIEW AND META-ANALYSIS
Ayaki, Kana, Shah, Ayesha, Fairlie, Thomas, Kulin, Dmitrii, Staller, Kyle, Nurko, Samuel, Keefer, Laurie, Aziz, Qasim, Drossman, Douglas A., Jones, Michael P. and Holtmann, Gerald (2026). Tu1700 PREVALENCE OF ORTHOSTATIC INTOLERANCE IN PATIENTS WITH DISORDERS OF GUT-BRAIN INTERACTION: A SYSTEMATIC REVIEW AND META-ANALYSIS. Gastrointestinal Endoscopy, 103 (5), S-1961. doi: 10.1016/s0016-5107(26)04630-4
2026
Journal Article
582 COMPARISON OF CULTURE OF DUODENAL ASPIRATE, GLUCOSE BREATH TEST AND GAS-SENSING CAPSULE DATA ON THE SYMPTOMATIC RESPONSE TO RIFAXIMIN IN PATIENTS WITH DGBI
Shah, Ayesha, Ghoshal, Uday C., Fairlie, Thomas, Ghoshal, Ujjala, Koloski, Natasha, Lim, Yenkai, Morrison, Mark, Sahu, Shikha, Singh, Madhuri, Spencer, Sean, Gibson, Peter R. and Holtmann, Gerald (2026). 582 COMPARISON OF CULTURE OF DUODENAL ASPIRATE, GLUCOSE BREATH TEST AND GAS-SENSING CAPSULE DATA ON THE SYMPTOMATIC RESPONSE TO RIFAXIMIN IN PATIENTS WITH DGBI. Gastrointestinal Endoscopy, 103 (5), S-2414. doi: 10.1016/s0016-5107(26)05633-6
2026
Journal Article
Su1302 IN VITRO EFFECTS OF RIFAXIMIN ON THE DUODENAL MUCOSA ASSOCIATED MICROBIOTA CULTURED FROM PATIENTS WITH OVERLAPPING DISORDERS OF GUT-BRAIN INTERACTION
Fairlie, Thomas, Celine, Patricia, Shah, Ayesha, Lim, Yenkai, Morrison, Mark and Holtmann, Gerald (2026). Su1302 IN VITRO EFFECTS OF RIFAXIMIN ON THE DUODENAL MUCOSA ASSOCIATED MICROBIOTA CULTURED FROM PATIENTS WITH OVERLAPPING DISORDERS OF GUT-BRAIN INTERACTION. Gastrointestinal Endoscopy, 103 (5), S-2457. doi: 10.1016/s0016-5107(26)05745-7
2026
Journal Article
Su1114 ACUTE EFFECTS OF BOTULINUM TOXIN ON THE DISTENSIBILITY OF THE LES IN PATIENTS WTIH SUSPECTED ACHALASIA AND ESOPHAGEAL OUTLET OBSTRUCTION
Luong, Suzanna, Wang, William J., McKillen, Ben, Moy, Naomi, Do, Anh and Holtmann, Gerald (2026). Su1114 ACUTE EFFECTS OF BOTULINUM TOXIN ON THE DISTENSIBILITY OF THE LES IN PATIENTS WTIH SUSPECTED ACHALASIA AND ESOPHAGEAL OUTLET OBSTRUCTION. Gastroenterology, 170 (6), S-723. doi: 10.1016/s0016-5085(26)01999-2
2026
Journal Article
Sa1759 DISORDERS OF GUT-BRAIN INTERACTION PRESENTING WITH SEVERELY ALTERED FOOD INTAKE BEHAVIOR (DGBI-AFIB): CHARACTERISATION OF A DISTINCT PATIENT GROUP
Shah, Ayesha, Moy, Naomi, Kulin, Dmitrii, Callaghan, Gavin, Fairlie, Thomas, Virgo, Kate, Hansen, Teressa J., Jones, Michael P., Koloski, Natasha A., Thapar, Nikhil and Holtmann, Gerald (2026). Sa1759 DISORDERS OF GUT-BRAIN INTERACTION PRESENTING WITH SEVERELY ALTERED FOOD INTAKE BEHAVIOR (DGBI-AFIB): CHARACTERISATION OF A DISTINCT PATIENT GROUP. Gastrointestinal Endoscopy, 103 (5), S-1850. doi: 10.1016/s0016-5107(26)04391-9
2026
Journal Article
Tu1101 DURABILITY OF DYSPHAGIA IMPROVEMENTS FOLLOWING SINGLE ADMINISTRATION OF EP-104GI IN PARTICIPANTS WITH EOSINOPHILIC ESOPHAGITIS DURING DOSE ESCALATION IN THE RESOLVE TRIAL
Bredenoord, Albert J., Nguyen, Nam Q., Ho, Vincent, Ko, Hin Hin, Afif, Waqqas, Holtmann, Gerald J., Dellon, Evan S., Kolisnik, Tyler, Dye, Andrew, Malone, Amanda and Kowalski, Mark M. (2026). Tu1101 DURABILITY OF DYSPHAGIA IMPROVEMENTS FOLLOWING SINGLE ADMINISTRATION OF EP-104GI IN PARTICIPANTS WITH EOSINOPHILIC ESOPHAGITIS DURING DOSE ESCALATION IN THE RESOLVE TRIAL. Gastroenterology, 170 (6), S-817. doi: 10.1016/s0016-5085(26)02201-8
2026
Journal Article
Tu1669 CHRONIC GASTROINTESTINAL SYMPTOMS AND SYSTEMIC COMORBIDITIES IN ADULT PATIENTS WITH HYPERMOBILITY SPECTRUM DISORDERS: A SYSTEMATIC REVIEW AND META-ANALYSIS
Kulin, Dmitrii, Shah, Ayesha, Fairlie, Thomas, Staller, Kyle, Nurko, Samuel, Keefer, Laurie, Aziz, Qasim, Drossman, Douglas A., Jones, Michael P. and Holtmann, Gerald (2026). Tu1669 CHRONIC GASTROINTESTINAL SYMPTOMS AND SYSTEMIC COMORBIDITIES IN ADULT PATIENTS WITH HYPERMOBILITY SPECTRUM DISORDERS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Gastrointestinal Endoscopy, 103 (5), S-1946. doi: 10.1016/s0016-5107(26)04599-2
2026
Journal Article
Su1114 ACUTE EFFECTS OF BOTULINUM TOXIN ON THE DISTENSIBILITY OF THE LES IN PATIENTS WTIH SUSPECTED ACHALASIA AND ESOPHAGEAL OUTLET OBSTRUCTION
Luong, Suzanna, Wang, William J., McKillen, Ben, Moy, Naomi, Do, Anh and Holtmann, Gerald (2026). Su1114 ACUTE EFFECTS OF BOTULINUM TOXIN ON THE DISTENSIBILITY OF THE LES IN PATIENTS WTIH SUSPECTED ACHALASIA AND ESOPHAGEAL OUTLET OBSTRUCTION. Gastrointestinal Endoscopy, 103 (5), S-723. doi: 10.1016/s0016-5107(26)01930-9
2026
Journal Article
Su1302 IN VITRO EFFECTS OF RIFAXIMIN ON THE DUODENAL MUCOSA ASSOCIATED MICROBIOTA CULTURED FROM PATIENTS WITH OVERLAPPING DISORDERS OF GUT-BRAIN INTERACTION
Fairlie, Thomas, Celine, Patricia, Shah, Ayesha, Lim, Yenkai, Morrison, Mark and Holtmann, Gerald (2026). Su1302 IN VITRO EFFECTS OF RIFAXIMIN ON THE DUODENAL MUCOSA ASSOCIATED MICROBIOTA CULTURED FROM PATIENTS WITH OVERLAPPING DISORDERS OF GUT-BRAIN INTERACTION. Gastroenterology, 170 (6), S-2457. doi: 10.1016/s0016-5085(26)05814-2
2026
Journal Article
Critical Review: The Past, Present, and Future of Small Intestinal Bacterial Overgrowth ( <scp>SIBO</scp> )
Shah, Ayesha, Holtmann, Gerald and Gibson, Peter R. (2026). Critical Review: The Past, Present, and Future of Small Intestinal Bacterial Overgrowth ( SIBO ). JGH Open, 10 (5) e70419. doi: 10.1002/jgh3.70419
2026
Journal Article
Sa1003 TRUST OF PATIENTS AND CONSUMERS IN AI-SUPPORTED CLINICAL DECISION MAKING: RESULTS FROM AN AI-SUPPORTED SYSTEMATIC REVIEW
Wilmes, Sophie, Holtmann, Gerald, Shah, Ayesha and Moy, Naomi (2026). Sa1003 TRUST OF PATIENTS AND CONSUMERS IN AI-SUPPORTED CLINICAL DECISION MAKING: RESULTS FROM AN AI-SUPPORTED SYSTEMATIC REVIEW. Gastrointestinal Endoscopy, 103 (5), S-2343. doi: 10.1016/s0016-5107(26)05474-x
2026
Journal Article
Sa1003 TRUST OF PATIENTS AND CONSUMERS IN AI-SUPPORTED CLINICAL DECISION MAKING: RESULTS FROM AN AI-SUPPORTED SYSTEMATIC REVIEW
Wilmes, Sophie, Holtmann, Gerald, Shah, Ayesha and Moy, Naomi (2026). Sa1003 TRUST OF PATIENTS AND CONSUMERS IN AI-SUPPORTED CLINICAL DECISION MAKING: RESULTS FROM AN AI-SUPPORTED SYSTEMATIC REVIEW. Gastroenterology, 170 (6), S-2343. doi: 10.1016/s0016-5085(26)05543-5
2026
Journal Article
Tu1102 SINGLE ADMINISTRATION OF EP-104GI IN RESOLVE, A PHASE 1B/2 TRIAL IN EOSINOPHILIC ESOPHAGITIS, IMPROVES ENDOSCOPIC FEATURES OF INFLAMMATION AND FIBROSIS OVER 36 WEEKS
Gonsalves, Nirmala, Nguyen, Nam Q., Ko, Hin Hin, Ho, Vincent, Afif, Waqqas, Holtmann, Gerald J., Dellon, Evan S., Ravikumar, Pranali, Dye, Andrew, Malone, Amanda and Kowalski, Mark M. (2026). Tu1102 SINGLE ADMINISTRATION OF EP-104GI IN RESOLVE, A PHASE 1B/2 TRIAL IN EOSINOPHILIC ESOPHAGITIS, IMPROVES ENDOSCOPIC FEATURES OF INFLAMMATION AND FIBROSIS OVER 36 WEEKS. Gastrointestinal Endoscopy, 103 (5), S-817. doi: 10.1016/s0016-5107(26)02133-4
2026
Journal Article
400 SINGLE ADMINISTRATION OF ESCALATING DOSES OF EP-104GI LEADS TO PERSISTENT IMPROVEMENTS IN HISTOLOGICAL FEATURES OF EOSINOPHILIC ESOPHAGITIS OVER 36 WEEKS IN RESOLVE, A PHASE 1B/2 DOSE ESCALATION AND OPTIMIZATION TRIAL
Ma, Christopher, Nguyen, Nam Q., Ko, Hin Hin, Ho, Vincent, Afif, Waqqas, Holtmann, Gerald J., Dellon, Evan S., Dobek, Christine, Dye, Andrew, Kowalski, Mark M. and Malone, Amanda (2026). 400 SINGLE ADMINISTRATION OF ESCALATING DOSES OF EP-104GI LEADS TO PERSISTENT IMPROVEMENTS IN HISTOLOGICAL FEATURES OF EOSINOPHILIC ESOPHAGITIS OVER 36 WEEKS IN RESOLVE, A PHASE 1B/2 DOSE ESCALATION AND OPTIMIZATION TRIAL. Gastroenterology, 170 (6), S-627. doi: 10.1016/s0016-5085(26)01797-x
2026
Journal Article
Tu1700 PREVALENCE OF ORTHOSTATIC INTOLERANCE IN PATIENTS WITH DISORDERS OF GUT-BRAIN INTERACTION: A SYSTEMATIC REVIEW AND META-ANALYSIS
Ayaki, Kana, Shah, Ayesha, Fairlie, Thomas, Kulin, Dmitrii, Staller, Kyle, Nurko, Samuel, Keefer, Laurie, Aziz, Qasim, Drossman, Douglas A., Jones, Michael P. and Holtmann, Gerald (2026). Tu1700 PREVALENCE OF ORTHOSTATIC INTOLERANCE IN PATIENTS WITH DISORDERS OF GUT-BRAIN INTERACTION: A SYSTEMATIC REVIEW AND META-ANALYSIS. Gastroenterology, 170 (6), S-1961. doi: 10.1016/s0016-5085(26)04699-8
2026
Journal Article
582 COMPARISON OF CULTURE OF DUODENAL ASPIRATE, GLUCOSE BREATH TEST AND GAS-SENSING CAPSULE DATA ON THE SYMPTOMATIC RESPONSE TO RIFAXIMIN IN PATIENTS WITH DGBI
Shah, Ayesha, Ghoshal, Uday C., Fairlie, Thomas, Ghoshal, Ujjala, Koloski, Natasha, Lim, Yenkai, Morrison, Mark, Sahu, Shikha, Singh, Madhuri, Spencer, Sean, Gibson, Peter R. and Holtmann, Gerald (2026). 582 COMPARISON OF CULTURE OF DUODENAL ASPIRATE, GLUCOSE BREATH TEST AND GAS-SENSING CAPSULE DATA ON THE SYMPTOMATIC RESPONSE TO RIFAXIMIN IN PATIENTS WITH DGBI. Gastroenterology, 170 (6), S-2414. doi: 10.1016/s0016-5085(26)05702-1
Funding
Current funding
Past funding
Supervision
Availability
- Professor Gerald Holtmann is:
- Available for supervision
Looking for a supervisor? Read our advice on how to choose a supervisor.
Supervision history
Current supervision
-
Doctor Philosophy
IBD and mental health tools: a holistic approach to discovery and appropriate tool.
Principal Advisor
Other advisors: Dr Ayesha Shah
-
Doctor Philosophy
Effects the COVID-19 pandemic on the outcome and management of highly prevalent gastrointestinal conditions
Principal Advisor
Other advisors: Dr Ayesha Shah
-
Doctor Philosophy
The role of the gut microbiome in alcohol related liver disease
Associate Advisor
Other advisors: Professor Jason Connor, Honorary Professor Paul Clark
-
Doctor Philosophy
Study of TOfacitinib for the treatment of chronic Pouchitis
Associate Advisor
Other advisors: Associate Professor Jakob Begun
-
Doctor Philosophy
Investigating the Role of Exercise in Managing Disorders of the Gut Brain Interaction
Associate Advisor
Other advisors: Professor Jeff Coombes
-
Doctor Philosophy
Targeting the gastrointestinal mucosa associated microbiome to improve clinical outcomes
Associate Advisor
Other advisors: Dr Ayesha Shah
Completed supervision
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2025
Doctor Philosophy
Reimagining Health Equity and Access in Colorectal Cancer Screening. A population perspective.
Principal Advisor
Other advisors: Dr Ayesha Shah
-
2020
Doctor Philosophy
Characterization of the Human Duodenal Microbiome in Health and Disease
Principal Advisor
Other advisors: Honorary Professor Graeme Macdonald
-
2019
Doctor Philosophy
Mechanisms of action of the duodenal-jejunal bypass sleeve
Principal Advisor
Other advisors: Honorary Professor Graeme Macdonald
-
2023
Doctor Philosophy
Structure-function relationships of the mucosa-associated microbiota in Crohn's disease
Associate Advisor
Other advisors: Associate Professor Jakob Begun, Professor Mark Morrison
-
2022
Doctor Philosophy
Multi-omics data offer systemic insights into autism
Associate Advisor
Other advisors: Professor Naomi Wray, Honorary Professor Jake Gratten
-
2022
Doctor Philosophy
Genomic- and culture-enabled analyses of host-associated methanogenic archaea
Associate Advisor
Other advisors: Professor Mark Morrison
-
Doctor Philosophy
The role of small intestinal permeability and gut microbiota in chronic liver disease
Associate Advisor
Other advisors: Honorary Professor Graeme Macdonald
Media
Enquiries
Contact Professor Gerald Holtmann directly for media enquiries about:
- colon cancer screening
- Gastroenterology
- Gut Health
- Microbiome
- Neurogastroenterology
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