Clinical Research Directory

Enabling Microbiomics- Driven Personalized Nutrition

The goal of this observational research study is to determine how diet contributes to various gastrointestinal related conditions. The main question investigators aim to answer is: Are host genetics, diet, and microbiome all important determinants of GI disorders, and how their relative contribution varies among individuals and populations.

Probiotic Improve Constipation

To evaluate the efficacy and safety of probiotic as a food supplement in regulating bowel habits in patients with chronic constipation, and to compare it with placebo.

Adults With Constipation

This randomized, double-blind, placebo-controlled trial will assess the clinical effects of Akk09 in adults with functional constipation. Participants will receive Akk09 or placebo for 4 weeks. The study will evaluate changes in bowel habits and symptom burden, as well as alterations in host inflammatory status, immune modulation, microbial ecosystem dynamics, neuroendocrine signaling related to the gut-brain axis, and systemic metabolic responses, to characterize the overall physiological impact of BC09 supplementation.

MOWOOT Device Treatment for Adults With Chronic Constipation

The primary objective is to compare the effectiveness of the experimental Intermittent Colonic Exoperistalsis (ICE) treatment with MOWOOT, with the active control of trans-anal irrigation (TAI) as standard-of-care. The secondary objectives are to further compare the ICE treatment with MOWOOT to the TAI standard-of-care clinically and economically.

Dairy Products to Your Gut and Brain

The goal of this intervention study is to compare the effects of fermented dairy and non-fermented dairy on bowel habits and cognitive performance in healthy women with defecations every other day or less. Furthermore, the study aims to explore underlying mechanisms linking the gut and the brain. In addition, a sub-study will be conducted to explore differences in gut and brain measures between women with daily (reference group) and few (intervention group) weekly bowel movements, respectively, and to explore associations between measures of gut- and brain function.

Radicle GI Health RDH™: A Study Assessing the Impact of Health and Wellness Products on Gastrointestinal (GI) Health and Related Health Outcomes

A Randomized, Double-Blind, Placebo-Controlled Direct-to-Consumer Study Assessing the Impact of Health and Wellness Products on Gastrointestinal (GI) Health and Related Health Outcomes

A Study of Herbal Supplements in Cancer Survivors With Constipation

The purpose of this study is to find out whether MZRW is an effective treatment for constipation in cancer survivors. The researchers will compare MZRW with placebo, a pill that looks like MZRW and is given in the same way, but contains no medication. The researchers will also study the effect MZRW has on the gut microbiome. The gut microbiome is a diverse community of microorganisms living in the digestive system, essential for digestion and immune function.

A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Constipation (IBS-C)

The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Constipation (IBS-C). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo. The study will last approximately 35 weeks.

Randomized, Blinded, Placebo-Controlled Evaluation of BioAmicus Complete

This is a randomized, single-blind, placebo-controlled study to evaluate the efficacy of the dietary supplement BioAmicus Complete (oral drops; a mixture of 10 strains of lacto- and bifidobacteria) in managing functional gastrointestinal disorders and cutaneous symptoms of food allergy in infants during the first months of life. The aim of the study is to assess clinical effects of BioAmicus Complete drops on the symptoms of infantile colic, constipation, diarrhea, gastroesophageal reflux, atopic dermatitis/eczema in full-term newborns during the first months of life. A prospective study comparing two treatment groups: Group 1 (treatment group) - 70 infants. Group 2 (control group) - 70 infants, placebo. The study drug will be taken in 1 time per day within 25 days. Allowed symptomatic therapy includes defoamers (simethicone-based preparations), carminative preparations (dill water (fenhel)), etc.

Effectiveness of Electromagnetic Field Therapy in Chronic Constipation

This study was a prospective randomise controlled study. The aim of this study was to determine the effect of transabdominal magnetic field therapy on constipation severity in patients with chronic functional constipation. After eligibility assessment and baseline measurements, participants were randomly allocated into three groups: the transabdominal magnetic field therapy group, the sham group, and the standard care group. All groups received Constipation Management Education. The education program, developed based on the literature, covered the definition, causes, risk factors, medication use, and lifestyle-related factors associated with constipation. In addition, behavioral recommendations were provided, including maintaining regular bowel habits, adopting an appropriate defecation posture, avoiding delayed defecation and excessive straining, and optimizing diet, fluid intake, and physical activity. The MFT group received active transabdominal magnetic field therapy twice weekly for 8 weeks. The sham group underwent the same device placement and session protocol; however, the device was used without delivering an active magnetic field. The standard care group received only Constipation Management Education. Participants were followed face to face for 8 weeks, and individual counseling was provided when needed to answer their questions. The primary outcome measure was the Constipation Severity Instrument (CSI). Secondary outcomes were the CSI subscales, the Patient Assessment of Constipation Quality of Life questionnaire (PAC-QOL), the Bristol Stool Form Scale, complete spontaneous bowel movements (CSBM), and defecation time.

The Effect of Preoperative Abdominal Massage on Postoperative Constipation

The aim of this clinical study is to determine whether preoperative abdominal massage has an effect on the development of postoperative constipation. The main questions it aims to answer are: • Does preoperative abdominal massage improve postoperative stool consistency? • Does preoperative abdominal massage prevent constipation? To see if abdominal massage is effective in preventing constipation, researchers will not apply any treatment to the second group and will compare the two groups. Participants will: * Provide researchers with information about their preoperative and postoperative stool consistency and constipation status. * Inform the researchers if the group that received the massage experiences any adverse effects from the massage.

Treatment of Fecal Incontinence and Chronic Constipation With Low-volume Irrigation

The aim of this study is to investigate the efficacy of low-volume irrigation on bowel function among patients with fecal incontinence and/or chronic constipation (of heterogenous origin).

A Rapid Clinical Care Pathway to Care for Patients Affected by Chronic Constipation

This research is studying how the availability of a Food and Drug Administration (FDA)-cleared point-of-care, bedside device bedside device called Rectal Expulsion Device (RED) can be used to evaluate constipation in the participants' routine office visit with the participants' care provider. In this research, participants will be asked to complete a survey prior to the gastroenterology office consultation. Health-related information will be collected for this research study. There are no additional study visits for this research study.

Efficacy of LcS-Fermented Milk on Constipation-Related Symptoms in Filipino Adults

The primary purpose of this study is to investigate whether the consumption of a probiotic drink (with Lacticaseibacillus paracasei strain Shirota (LcS)) relieves constipation-related symptoms of Filipino adults, specifically its effect on stool consistency, frequency, and duration, and on gastrointestinal discomfort.

Guideline to Implementation: A Rapid Clinical Care Pathway to Care for Patients Affected by Chronic Constipation

The study is being completed to test the pilot implementation of a rapid clinical care pathway for chronic constipation in the University of Michigan Gastroenterology clinic. This study will learn how often patients get better and how satisfied patients are with care decisions, when seen by a gastroenterologist for medical advice on constipation.

Comparison of Circular(Soave) and Heart-shaped Anastomosis in Hirschsprung's Disease

Comparison of Circular(Soave)and Heart-shaped Anastomosis in Hirschsprung's disease.

Rifaximin Treatment in Bloating Predominant Functional Bowel Disorders

This randomized, double-blind, placebo-controlled trial will evaluate whether a 14-day course of rifaximin improves bloating in adult patients with Rome IV functional bowel disorders in whom bloating is the predominant symptom. Eligible participants with irritable bowel syndrome, functional constipation, or functional abdominal bloating/distension and bothersome bloating despite adequate bowel movement management will be assigned in a 1:1 ratio to rifaximin 550 mg three times daily or matching placebo for 2 weeks. The primary endpoint is the proportion of participants with bloating response, defined as at least a 1-point reduction from baseline in a 7-point Likert bloating score at the end of treatment.

Impact of the Inno Cleanse Dietary Supplement on Gut Health and Associated Variables in Healthy Men and Women

The purpose of the present study is to investigate the impact of a natural dietary supplement, Inno Cleanse™, to reduce bloating in a population of otherwise healthy men and women, who claim to feel frequently bloated. Inno CleanseTM dietary supplement is manufactured in the United States under current Good Manufacturing Practices (cGMP) and is marketed by InnoSupps as a digestive health aid. It is sold in the United States on the company's website, Amazon, and in many large retail outlets. It remains a very popular product, with close to 1.4 million units sold since 2020, with a reported 66,000 units sold in the past three months. Despite the prevalence of dietary supplements identifying as digestive aids, detoxification, and cleanses, very little research has been done to determine their effectiveness. The product appears to be well-designed, with multiple ingredients included which have scientific evidence of effectiveness. That said, and despite the overall positive reviews, there is no known clinical research to support the product's effectiveness. Therefore, the aim of this study is to evaluate the efficacy of the Inno Cleanse product to reduce bloating and result in other positive outcomes (weight loss). This study will be run as a double-blind placebo-controlled trial, in which subjects will use the product or placebo for two weeks. It is hypothesized that treatment with the dietary supplement Inno Cleanse will result in reduced bloating, as evidenced by self-reported reductions in bloating and hunger, as well as moderate weight loss and a reduction in body circumference measures due to the reduced bloating. In addition, multiple anecdotal reports of improved skin health have been noted in those using the product. Additionally, routine blood and urine sample analysis will be performed as a secondary outcome, as a safety measure.

Assessing Tenapanor as a Treatment of CF-related Constipation.

Tenapanor is the newest FDA-approved drug for IBS with constipation (IBS-C). This study seeks to understand tenapanor as a treatment for cystic fibrosis-related constipation (CFrC) in CF patients. Participants will ingest one 50 mg tablet of tenapanor, twice daily, for a 4-week treatment period. They will also complete three questionnaires, the PAC-SYM, PAC-QoL, and IBS-SSS, and daily diaries to characterize GI symptom burden and spontaneous bowel movement (SBM) frequency.

Constipation in Children With Cerebral Palsy

Constipation is a common problem in children with cerebral palsy and may negatively affect daily activities, quality of life, and family well-being. Several factors such as nutrition, physical activity level, functional status, and psychological condition of the caregiver may be associated with constipation in this population. The aim of this study is to investigate the presence and severity of constipation in children with cerebral palsy and to examine the factors that may be related to constipation, including dietary intake, fluid consumption, physical activity level, functional status, and caregiver psychological status. This study is an observational cross-sectional study including children with cerebral palsy aged 4-18 years and their caregivers. Data will be collected using questionnaires, clinical classification systems, bowel diaries, nutrition records, and psychological scales. No intervention will be applied to participants.

Preoperative Fish Oil PN and Prognosis After Constipation Surgery

This is a prospective, multicenter, real-world observational study to evaluate the impact of perioperative parenteral nutrition (PN) with fish oil-containing lipid emulsion on outcomes in adult patients with constipation undergoing elective colon surgery. The study will compare two clinical nutrition strategies: (1) PN with fish oil-containing lipid emulsion started before surgery and continued after surgery, and (2) PN with fish oil-containing lipid emulsion started only after surgery. Eligible participants are adults (18-75 years) with slow-transit constipation (STC) or megacolon who are scheduled for elective colon surgery and have nutritional risk (NRS2002 score \>=3). The primary objective is to compare the incidence of postoperative complications between these two PN timing strategies. Secondary objectives include comparison of perioperative nutritional status, postoperative inflammatory status, prognosis, and safety outcomes. This study will collect and analyze clinical data, laboratory indicators, perioperative recovery outcomes, follow-up assessments, and safety information in routine clinical practice. Outcomes include postoperative complication rates, changes in nutritional and inflammatory markers, bowel function recovery, length of hospital stay, constipation-related symptoms, quality of life, and adverse events. No experimental intervention will be assigned as part of this observational study. The planned sample size is 306 participants. The findings may help optimize perioperative nutritional support strategies for patients with constipation undergoing surgery.

Optimization of Postoperative Bowel Habits

Project is a trial, in which women undergoing vaginal surgery for pelvic organ prolapse will be randomized 1:1 to a postoperative bowel regimen of either oral senna or rectal bisacodyl suppository.

Validation of a Novel Functional Food Designed to Meet the Nutritional Needs of People Living With Parkinson's Disease

Constipation is a common complication and non-motor symptom of Parkinson's disease (PD) and affects up to 80% of people with PD. It is in fact within the non-motor symptoms that nutrition and dietetic intervention could have the greatest impact. Research suggests that increasing the amount of fibre in the diet could help to alleviate the effects of constipation. Inulin is a type of fibre widely found in a variety of vegetables, and recent studies have shown that inulin can improve constipation in people with PD. With the assistance of a food company, the investigators have developed a functional drink, enriched with chicory inulin and other key nutrients, including B-vitamins and vitamin D (which are suggested within the literature to be beneficial in PD). Therefore, the investigators plan to conduct a 12-week feasibility study to test the effect of this novel functional drink on gut health outcomes, nutritional status, and overall quality of life in people living with PD.

Pyridostigmine for the Treatment of Constipation in Parkinson Disease

Constipation is a common and debilitating non-motor symptom of Parkinson disease (PD) that often precedes the onset of classic motor symptoms by decades. There is no standardized algorithm for managing constipation in this patient population, nor are there dedicated treatments. Studies suggest that constipation can affect quality of life to a significant degree, in many cases just as much as motor symptoms. There is an unmet need for effective treatment options for constipation in this patient population. The goal of this study is to determine the efficacy and safety of pyridostigmine as a treatment for chronic constipation in patients with PD.