An interventional study of Enzymax DuoBiotics and Placebo in Irritable Bowel Syndrome and Irritable Bowel Syndrome (IBS), sponsored by Gala Servicios Clinicos S.L.. Not yet recruiting. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-07-23.
Sponsored by Gala Servicios Clinicos S.L. · Not applicable, Interventional, and Treatment
Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder characterized by recurrent abdominal pain associated with altered bowel habits in the absence of detectable structural abnormalities. Its pathophysiology is multifactorial and may involve alterations in the intestinal microbiota, impaired epithelial barrier function, low-grade immune activation, and disturbances in the digestion and fermentation of dietary nutrients.
Enzymax DuoBiotics combines digestive enzymes with a synbiotic formulation in a capsule-in-capsule delivery system. The outer capsule contains digestive enzymes intended for release in the stomach, whereas the inner capsule contains Lactobacillus plantarum and fructooligosaccharides intended for release in the intestine. This formulation is designed to separate the enzymatic and synbiotic components and support their delivery to the intended gastrointestinal sites. The combined approach is intended to support macronutrient digestion while modulating the intestinal microbial environment.
This randomized, double-blind, placebo-controlled, parallel-group study will compare once-daily Enzymax DuoBiotics with placebo over a 12-week treatment period in adults with IBS. Participants will be allocated in a 1:1 ratio, and treatment effects over time will be evaluated using assessments performed during the treatment period. The primary statistical analysis will use linear mixed-effects models including treatment group, time, and the treatment group-by-time interaction. The primary analysis will follow the intention-to-treat principle and may be supplemented by a per-protocol analysis.
This is a randomized, double-blind, placebo-controlled, parallel-group clinical trial designed to evaluate the efficacy and safety of Enzymax DuoBiotics in adults with irritable bowel syndrome (IBS) diagnosed according to the Rome IV criteria. A total of 120 participants aged 18 to 70 years will be randomized in a 1:1 ratio to receive either Enzymax DuoBiotics or placebo once daily for 12 weeks.
Enzymax DuoBiotics is a dietary supplement formulated using a capsule-in-capsule delivery system. The outer capsule contains the digestive enzymes lipase, protease 4.5, protease 3.0, amylase, and glucoamylase and is intended to be released in the stomach. The inner capsule contains the synbiotic combination of Lactobacillus plantarum and fructooligosaccharides and is intended to be released in the intestine. This formulation is designed to separate the digestive enzymes from the synbiotic components and to support their release at the intended gastrointestinal site.
The primary objective is to evaluate the efficacy of Enzymax DuoBiotics in reducing gastrointestinal symptoms associated with IBS. The primary outcomes will be assessed using the Gastrointestinal Symptom Rating Scale (GSRS) and the Irritable Bowel Syndrome Severity Scoring System (IBS-SSS).
Secondary outcomes will include changes in inflammatory biomarkers, including interleukin-6, interleukin-8, tumor necrosis factor alpha, and C-reactive protein; IBS-related quality of life assessed using the Irritable Bowel Syndrome Quality of Life questionnaire; stool consistency assessed using the Bristol Stool Form Scale; treatment satisfaction; treatment adherence based on capsule count; and safety and tolerability based on the recording of adverse events and assessment of their relationship to the study product.
Assessments will be performed at baseline, Week 6, and Week 12. The Week 6 assessment will be conducted by telephone and will include adherence monitoring and completion of electronic questionnaires. The final assessment at Week 12 will include collection of clinical data and questionnaires, evaluation of treatment adherence, and recording of adverse events. The primary analysis will be conducted according to the intention-to-treat principle and may be complemented by a per-protocol analysis.
1,116 studies on the registry are indexed under Irritable Bowel Syndrome; 208 are open to participants now.
This study's planned enrollment of 120 is above the median of 70 across 896 interventional studies indexed under Irritable Bowel Syndrome.
Browse Irritable Bowel Syndrome studies →Gala Servicios Clinicos S.L. is the lead sponsor of 4 studies on the registry; 2 are open to participants now.
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Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants assigned to this arm will receive one capsule of Enzymax DuoBiotics orally once daily for 12 weeks. Enzymax DuoBiotics contains digestive enzymes, Lactobacillus plantarum, and fructooligosaccharides in a capsule-in-capsule delivery system.
Dietary Supplement: Enzymax DuoBiotics
Participants assigned to this arm will receive one placebo capsule orally once daily for 12 weeks. The placebo will be administered according to the same dosing schedule as Enzymax DuoBiotics.
Dietary Supplement: Placebo
Participants will receive one capsule of Enzymax DuoBiotics orally once daily for 12 weeks. Each capsule uses a capsule-in-capsule delivery system. The outer capsule, intended for release in the stomach, contains lipase (4,000 FIP), protease 4.5 (3,120 HUT), protease 3.0 (15 SAPU), amylase (2,150 DU), and glucoamylase (14 AGU). The inner capsule, intended for release in the intestine, contains Lactobacillus plantarum (5 × 10⁹ CFU) and fructooligosaccharides (140 mg).
Participants will receive one placebo capsule orally once daily for 12 weeks, according to the same administration schedule as the active dietary supplement.
Change from baseline in Gastrointestinal Symptom Rating Scale overall score
The Gastrointestinal Symptom Rating Scale is a 15-item questionnaire used to assess the severity of gastrointestinal symptoms across five symptom domains: abdominal pain, reflux, indigestion, diarrhea, and constipation. Each item is rated on a 7-point scale ranging from 1, indicating no troublesome symptoms, to 7, indicating very troublesome symptoms. The overall score is calculated as the mean of the item scores and ranges from 1 to 7. Higher scores indicate greater gastrointestinal symptom severity and therefore a worse outcome. Change from baseline will be assessed at Weeks 6 and 12, with the primary comparison performed at Week 12.
Time frame: Baseline, Week 6, and Week 12
Change from baseline in Irritable Bowel Syndrome Severity Scoring System total score
The Irritable Bowel Syndrome Severity Scoring System assesses the severity of irritable bowel syndrome symptoms, including abdominal pain, abdominal distension, satisfaction with bowel habits, and the impact of symptoms on daily life. The total score ranges from 0 to 500. Higher scores indicate greater symptom severity and therefore a worse outcome. Change from baseline will be assessed at Weeks 6 and 12, with the primary comparison performed at Week 12.
Time frame: Baseline, Week 6, and Week 12
No study locations are listed for this record.
Plan to share: No — Individual participant data collected during the trial will not be made available to other researchers.
No publications or documents are linked to this record.
Start is estimated for Sep 2026; primary completion for Jun 2027, 8 months later.
Of 305 non-industry interventional studies with no phase under Irritable Bowel Syndrome, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 40. This study's planned 8 months is below that.
Counting every sponsor, half of 357 studies reached it within 19 months; a quarter within 9 and three quarters within 38.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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Gala Servicios Clinicos S.L.