Gelsectan® in the Treatment of Patients With Diarrhoea-predominant Irritable Bowel Syndrome

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

330 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-22

Study Completion Date

2025-11-30

Brief Summary

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Irritable Bowel Syndrome (IBS) is one of the major Disorders of Gut-Brain Interaction (DGBI) and the most frequent reasons for referral to both primary care providers and gastroenterologists.IBS is not a life-threatening disease, but imposes a significant burden on society, entailing a decrease in patients' Quality of Life (QoL), elevated rates of psychological comorbidities and loss of work productivity, which might be the greatest in subjects with IBS-D, for whom the fear of incontinence in a social situation can be especially debilitating. Moreover, IBS is associated with significant direct and indirect healthcare costs and has a considerable socioeconomic impact on society.

Treatment strategy for IBS is usually based on predominant symptoms and their severity, and requires a strong patient-physician relationship, as well as both non-pharmacological and pharmacological approaches. Lifestyle interventions, such as dietary modifications, physical activity and lifestyle adjustments, and stress reduction/psychological therapy represent the most important initial non-pharmacological clinical approach for IBS patients, especially for those with mild disease. First-line pharmacological options for IBS-D include antidiarrheals, mainly loperamide, to control diarrhoea, as well as antispasmodic drugs to relieve IBS symptoms, in particular abdominal pain. Second-line therapies indicated for the treatment of global IBS-D symptoms include rifaximin, 5-Hydroxytryptamine (5-HT)3 receptor antagonists (alosetron, ondansetron and ramosetron) and eluxadoline. Other treatments recommended in patients with IBS-D consist of Tricyclic Anti-Depressants (TCAs) and bile acid sequestrants.

Notably, management of patients with IBS is challenging since diagnosis and treatment could require several therapeutical strategies with often partial and unsatisfactory results. Indeed, most patients with IBS are dissatisfied with their current therapy and 34% report no symptom control, according to the IBS Global Impact Report of 2018.

At present, there is a growing interest in therapeutic approaches for IBS-D aimed at improving intestinal barrier integrity for a more efficient control of symptoms, considering that an intestinal epithelial barrier dysfunction and mucosal immune activation have been suggested as a central mechanism in IBS-D pathophysiology. In this perspective, film-forming agents capable of protecting the intestinal mucosal barrier, such as Xyloglucan (XG) and Pea protein may represent a valid alternative therapeutic option for the management of IBS-D.

Gelsectan® is a CE-marked medical device under the European Union (EU) Medical Device Regulation (MDR) 2017/745, whose classification under the MDR is class III. Gelsectan® contains XG, Pea protein, grape seed extract, and Xylo-Oligosaccharides (XOS) and is indicated for symptomatic relief and prevention of chronic or relapsing diarrhoea, abdominal tension, pain, bloating and flatulence, as well as protection and restoration of intestinal mucosal function. Based on previous non-clinical studies and two clinical investigations, Gelsectan® seems to be safe and exert a protective action on the intestinal mucosa, mediating the restoration of intestinal permeability and the improvement of gastrointestinal symptoms associated with IBS-D. In particular, a 28-day treatment with Gelsectan® significantly reduced IBS-D-associated diarrhoea, abdominal pain and bloating, with no related adverse events in a randomized, placebo-controlled, cross-over clinical study. Moreover, Gelsectan® treatment for 6 months was generally safe and effective in improving IBS severity, diarrhoea and bowel habit, as well as pain and bloating, in a recent multicentre, open-label, prospective, observational study. Of note, Gelsectan® was also mentioned in the recent clinical practice guidelines on IBS-D and functional diarrhoea of the United European Gastroenterology (UEG) and the European Society for Neurogastroenterology and Motility (ESNM), and a recent consensus on IBS conducted by a panel of Belgian gastroenterologists.

With these premises, the present study aims to further assess the performance and safety of Gelsectan® within the scope of its intended purpose, compared with placebo, on overall abdominal pain and symptoms in patients with IBS-D in a randomized, double-blind, parallel-group clinical study.

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Detailed Description

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Conditions

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Irritable Bowel Syndrome (IBS) Irritable Bowel Syndrome of Diarrhea Type (IBS-D)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Gelsectan®

Gelsectan® is a class III CE-marked medical device under the Regulation (EU) 2017/745 (MDR), which has been present on the EU market since 2017. Gelsectan® medical device consists of non-sterile capsules containing film-forming compounds (Xyloglucan, Pea protein, grape seed extract, and Xylo-oligosaccharide) indicated for symptomatic relief and prevention of IBS symptoms.

Group Type EXPERIMENTAL

Gelsectan®

Intervention Type DEVICE

Oral capsules are to be taken twice a day for 2 months (two capsules in the morning before breakfast and two capsules in the evening before dinner during the first 4 weeks of treatment; one capsule in the morning and one in the evening during the following 4 weeks of treatment).

Placebo

Placebo capsule, comparable in size, appearance and taste, packaging and labelling, as well as mode and schedule of administration to the IMD (i.e., Gelsectan®).

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Oral capsules are to be taken twice a day for 2 months (two capsules in the morning before breakfast and two capsules in the evening before dinner during the first 4 weeks of treatment; one capsule in the morning and one in the evening during the following 4 weeks of treatment).

Interventions

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Gelsectan®

Oral capsules are to be taken twice a day for 2 months (two capsules in the morning before breakfast and two capsules in the evening before dinner during the first 4 weeks of treatment; one capsule in the morning and one in the evening during the following 4 weeks of treatment).

Intervention Type DEVICE

Placebo

Oral capsules are to be taken twice a day for 2 months (two capsules in the morning before breakfast and two capsules in the evening before dinner during the first 4 weeks of treatment; one capsule in the morning and one in the evening during the following 4 weeks of treatment).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Male or female, age ≥18 years and ≤ 65 years.
2. Positive diagnosis of IBS, according to Rome IV diagnostic criteria, namely recurrent abdominal pain, on average, at least 1 day/week in the last 3 months associated with two or more of the following criteria:

* related to defecation
* associated with a change in frequency stool
* associated with a change in form (appearance) of stool The above criteria must be fulfilled for the last 3 months with symptom onset at least 6 months before diagnosis.
3. Positive diagnosis of IBS-D subtype based on Rome IV diagnostic criteria, i.e., more than 25% of bowel movements with a consistency of type 6 or type 7 (loose or watery stools) on the BSFS, and less than 25% of bowel movements with BSFS types 1 or 2 (hard or lumpy stools), on days with at least one abnormal bowel movement.
4. Negative results to any relevant additional tests or exams whenever deemed appropriate by the Investigator to exclude other disorders or causes of IBS symptoms.
5. At least one type 6 or type 7 bowel movement based on the BSFS on at least 4 days within the last week prior to randomization.
6. Weekly average score of 24-hours worst abdominal pain score ≥ 3 on NRS-11 in the last week prior to randomization.
7. Electronic diary (e-diary) completed on at least 11 of 14 days (≥ 75%) during the screening period (i.e., 2 weeks prior to randomization).
8. Willingness and capability to fulfil all tasks foreseen by the Clinical Investigation Plan (CIP).
9. Signed written informed consent.
10. Females of childbearing potential must have a negative urine pregnancy test (dipstick) at randomization and currently use or agree to use consistently and correctly (i.e., perfect use) a highly effective or acceptable effective contraceptive method for the individual subject and her partner(s) throughout the study treatment period and for at least one full contraceptive cycle (when applicable).

Exclusion Criteria

1. Presence of any relevant organic, systemic or metabolic disease (particularly significant history of cardiovascular, renal, neurological, endocrine, metabolic or hepatic disease) that would preclude participation in this study in the opinion of the Investigator, or abnormal laboratory values that will be deemed clinically significant on the basis of predefined values.
2. Known perforation and/or gastrointestinal obstruction.
3. Ascertained organic gastrointestinal diseases, including celiac disease, bile acid malabsorption or inflammatory bowel diseases (Crohn's disease, ulcerative colitis, diverticular disease, infectious colitis, ischemic colitis, microscopic colitis).
4. Presence of other intestinal motility disorders, such as biliary dyskinesia, gastroparesis, intestinal pseudo-obstruction, and narcotic bowel syndrome.
5. Previous major abdominal surgery (uncomplicated appendectomy, cholecystectomy, polypectomy, inguinal hernia surgery, or caesarean section are allowed unless within six months prior to screening).
6. Active malignancy of any type (except for non-invasive basal or squamous cell carcinoma of the skin), or history of a malignancy other than non-invasive basal or squamous cell carcinoma of the skin. Patients with a history of malignancies that have been surgically removed with no evidence of recurrence for at least five years and no treatment prior to screening are allowed to participate in the study.
7. History of allergy or hypersensitivity to any of the investigational product ingredients or excipients.
8. Current use of Gelsectan®.
9. Use of loperamide or antispasmodics (i.e., direct smooth muscle relaxants, anticholinergic agents and calcium channel blockers) in the 14 days prior to randomization.
10. Concomitant use (starting from screening) of weak and potent opioids, 5-HT3 antagonists, such as alosetron and ondansetron, bile acid sequestrants, eluxadoline or any other drug/supplement known to significantly interfere with abdominal pain, stool frequency and consistency and/or intestinal permeability (except for those allowed as rescue therapy starting from randomization), including but not limited to corticosteroids, aminosalicylates, immunosuppressants and biologicals.
11. Prior and concomitant use of probiotics/prebiotics/synbiotics or rifaximin starting from 28 days prior to randomization. Other oral antibiotics and topical antibiotics are allowed.
12. Any major psychiatric unstable disorder, including eating disorders, and use of antidepressant or anxiolytic agents, unless used at a stable dose for at least 6 weeks prior to randomization.
13. History or current evidence of laxative abuse within 5 years prior to screening.
14. Recent history (within 12 months prior to screening) or suspicion of alcohol abuse or drug addiction.
15. Treatment with any investigational drug or medical device within 30 days prior to randomization, or current participation in other clinical trials or investigations.
16. Pregnancy or breastfeeding or intention to look for pregnancy throughout the whole study duration.

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Responsibility Role SPONSOR

Locations

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