Publications by authors named "David Hetzel"

There are several newer intravenous iron formulations to treat iron deficiency and its anaemia. Its use in the primary care setting has been infrequent compared to tertiary centres, due to historical concerns such as anaphylaxis. There is a lack of overall comparison among the intravenous formulations of iron.

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Background: Vedolizumab (VDZ), an α4β7 anti-integrin antibody, is efficacious in the induction and maintenance of remission in ulcerative colitis (UC) and Crohn's disease (CD). In the GEMINI long-term safety study, enrolled patients received 4-weekly VDZ. Upon completion, patients were switched to 8-weekly VDZ in Australia.

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Surgical and radiation therapy for DCIS and early stage 1 and 2 invasive breast cancer is detailed and described.

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Introduction: Iron deficiency anemia (IDA) is common in patients with gastrointestinal (GI) disorders and can adversely affect quality of life. Oral iron is poorly tolerated in many patients with GI disorders. Ferumoxytol is approved for the intravenous treatment of IDA in patients with chronic kidney disease.

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Purpose: There is ongoing controversy on the effectiveness of psychotherapy in inflammatory bowel disease (IBD). In the few small studies, cognitive-behavioural therapy (CBT) has been shown to alleviate symptoms of anxiety or depression. However, there is little research on the impact of CBT on physical outcomes in IBD and no studies on long-term effectiveness of CBT.

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Background: Studies have demonstrated usefulness of cognitive-behavioural therapy (CBT) in managing distress in inflammatory bowel disease (IBD); however, few have focused on IBD course. The present trial aimed to investigate whether adding CBT to standard treatment prolongs remission in IBD in comparison to standard therapy alone.

Methods: A 2-arm parallel pragmatic randomised controlled trial (+CBT - standard care plus either face-to-face (F2F) or online CBT over 10 weeks versus standard care alone (SC)) was conducted with adult patients in remission.

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Iron deficiency anemia (IDA) is the most common form of anemia worldwide. Although oral iron is used as first-line treatment, many patients are unresponsive to or cannot take oral iron. This Phase III, open-label, non-inferiority study compared the efficacy and safety of ferumoxytol, a rapid, injectable intravenous (IV) iron product with low immunological reactivity and minimal detectable free iron, with IV iron sucrose in adults with IDA of any cause.

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Background & Aims: The burden of ulcerative colitis (UC) in relation to disease severity is not well documented. This study quantitatively evaluated the relationship between disease activity and quality of life (QoL), as well as health care utilization, cost, and work-related impairment associated with UC in an Australian population.

Methods: A cross-sectional, noninterventional, observational study was performed in patients with a wide range of disease severity recruited during routine specialist consultations.

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Unlabelled: CCX282-B, also called vercirnon, is a specific, orally-administered chemokine receptor CCR9 antagonist that regulates migration and activation of inflammatory cells in the intestine. This randomized, placebo-controlled trial was conducted to evaluate the safety and efficacy of CCX282-B in 436 patients with Crohn's disease. Crohn's Disease Activity Index (CDAI) scores were 250-450 and C-reactive protein >7.

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Context: Postprandial hyperglycemia is an important clinical problem in cystic fibrosis (CF), but the contribution of fat malabsorption, rapid gastric emptying, and the incretin axis has not been widely considered.

Objective: The aim of this study was to evaluate these aspects of gut function in nondiabetic CF patients.

Design And Setting: We conducted a randomized, double-blind, placebo-controlled crossover study at a clinical research laboratory.

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Background And Aim: A significant proportion with inflammatory bowel disease (IBD) exhibit an adverse clinical phenotype reflected in endpoints like surgery and hospitalizations. We sought to identify clinico-demographic factors associated with these adverse consequences that may be amenable to change.

Methods: Over 6 months IBD patients visiting a metropolitan center were prospectively identified and given a comprehensive survey addressing patient knowledge, mental health and satisfaction with medical care along with other clinical data.

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Background & Aims: Understanding patients' expectations at initial consultation for functional gastrointestinal disorders (FGIDs) might influence future health care utilization. Ideally, patients and doctors would have a common understanding of the issues involved. We sought to investigate this with matched questionnaires.

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Background: In independent studies, IBD, IBS and HCV have each been associated with a substantially increased risk of psychological problems such as depression and anxiety and impairment of quality of life compared to the general healthy population. However, the relative psychological burden for each of these diagnoses is unknown as it has never been compared contemporaneously at one institution. Current local data are therefore needed to enable an evidence-based allocation of limited clinical psychological resources.

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Background & Aims: Mycobacterium avium subspecies paratuberculosis has been proposed as a cause of Crohn's disease. We report a prospective, parallel, placebo-controlled, double-blind, randomized trial of 2 years of clarithromycin, rifabutin, and clofazimine in active Crohn's disease, with a further year of follow-up.

Methods: Two hundred thirteen patients were randomized to clarithromycin 750 mg/day, rifabutin 450 mg/day, clofazimine 50 mg/day or placebo, in addition to a 16-week tapering course of prednisolone.

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