Functional Constipation

10

Review clinical trials related to Functional Constipation. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Not yet recruiting

Core-Based Movement and Nutritional Counselling for Stress and Metabolic Outcomes in Overweight Women With Functional Constipation

This study will investigate the effect of core-based movement and nutritional counselling on stress, serum cortisol, and lipid profile in overweight women with functional constipation. Sixty overweight women with functional constipation will be randomly assigned into two equal groups. The study group will include 30 participants who will receive a core-based movement exercise program for 8 weeks, two sessions per week, in addition to guideline-based nutritional counselling. The control group will include 30 participants who will receive guideline-based nutritional counselling only for 8 weeks. The outcomes will include perceived stress, serum cortisol level, lipid profile, stool form, sleep quality, and quality of life.

Participants needed: 60
Trial details
Age: 18-45Biological sex: FemaleType: InterventionalSponsor: Cairo UniversityUpdated: Jul 13, 2026Locations: 1
Eligibility criteria

Female participants diagnosed with functional constipation according to Rome IV... [+4]

Participants will be excluded if they have any organic gastrointestinal disorder... [+7]

Status: Not yet recruiting

Probiotics for Constipation Relief in Adults

This study aims to evaluate the efficacy and safety of Bifidobacterium animalis subsp. lactis BLa36 in adults with functional constipation. In this randomized, double-blind, placebo-controlled trial, participants will receive BLa36 supplementation or placebo for 8 weeks. Clinical outcomes will be assessed using validated gastrointestinal symptom scales, stool characteristics, and quality-of-life measures. In addition, changes in inflammatory and immune markers, gut microbiota composition, metabolic indicators, and gut-brain axis-related parameters will be evaluated to comprehensively determine the effects of BLa36 on intestinal function and overall health.

Participants needed: 105
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Wecare Probiotics Co., Ltd.Updated: Jun 9, 2026Locations: 1
Eligibility criteria

Adults aged 18-65 years; [+4]

Recent use of products with similar effects that may interfere with study outcom... [+7]

Status: Recruiting

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.

Participants needed: 70
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Memorial Sloan Kettering Cancer CenterUpdated: May 22, 2026Locations: 7
Eligibility criteria

Age 18 years or greater; [+20]

Patients who have allergic history to herbs or Chinese medicine; [+4]

Status: Not yet recruiting

Co-supplementation With Bifidobacterium Longum W11 and Colopectin for Maintenance Therapy in Children With Functional Constipation

Functional constipation is a common condition in children and often requires prolonged maintenance treatment with macrogol. This randomized, double-blind, placebo-controlled trial will evaluate whether co-supplementation with Bifidobacterium longum W11 and Colopectin can support maintenance therapy in children with functional constipation who are receiving macrogol and are candidates for weaning. Participants aged 2 to 6 years will be randomized to receive either the active supplementation or placebo once daily for 4 weeks, followed by 4 weeks of follow-up after treatment discontinuation. The study will assess persistence of constipation after macrogol discontinuation, as well as stool consistency, distress during evacuation, soiling episodes, and treatment compliance.

Participants needed: 100
Trial details
Age: 2-6Biological sex: AllType: InterventionalSponsor: Liaquat University of Medical & Health SciencesUpdated: Apr 17, 2026
Eligibility criteria

Children aged 2 to 6 years [+3]

Children with intestinal meteorism or flatulence [+4]

Status: Recruiting

The Efficacy and Palatability of Developed Polyethylene Glycol-based Formula for Children With Functional Constipation

This study aims to evaluate the efficacy and palatability of a developed polyethylene glycol-based formula compared with the standard polyethylene glycol (PEG) in the treatment of children with functional constipation for 8 weeks. Besides, we also aim to assess the side effects of a developed PEG-based formula as well as evaluate the change of rectal diameter from baseline at each visit between 2 groups.

Participants needed: 52
Trial details
Age: 6-18Biological sex: AllType: InterventionalSponsor: Chulalongkorn UniversityUpdated: Apr 2, 2026Locations: 1
Eligibility criteria

Age from 6 months to 18 years old [+1]

Having an organic cause of constipation such as anorectal malformations, Hirschs... [+3]

Status: Recruiting

BioAmicus Complete for Functional Gastrointestinal Symptoms in Infants Aged 0 to 24 Months

Infants often experience functional gastrointestinal symptoms (e.g., colic, excessive gas, regurgitation, constipation, or loose stools) that distress families and may reflect an imbalance of the gut microbiome. This study evaluates whether the multistrain probiotic BioAmicus Complete can improve caregiver-reported gastrointestinal symptoms in infants 0-24 months and is safe for use in this population. The primary assessment is the change in the Infant Gastrointestinal Symptom Questionnaire (IGSQ) total score from the start to the end of the study period. Secondary assessments include symptom domains (colic/regurgitation, stool frequency and consistency), caregiver quality of life, growth parameters (weight and length), health care utilization and antibiotic exposure, and overall safety/tolerability (adverse events and serious adverse events). Stool samples will be analyzed to explore changes in the gut microbiome.

Participants needed: 110
Trial details
Age: 0-24Biological sex: AllType: InterventionalSponsor: Haiphong University of Medicine and PharmacyUpdated: Jan 29, 2026Locations: 1
Eligibility criteria

Age 0-24 months at enrollment. [+3]

Major congenital gastrointestinal anomalies or known chronic gastrointestinal di... [+6]

Status: Recruiting

Functional Digestive Disorders Observatory

Functional digestive pathologies are defined by symptoms such as functional dyspepsia, gastroesophageal reflux, irritable bowel syndrome, gastroesophageal reflux, functional constipation, functional diarrhea, functional bloating, the opioid-induced constipation and fecal incontinence, without organic substratum. These diseases are very common in the general population (20%) and represent the first cause of consultation in city gastroenterology. The pathophysiology of these functional disorders is complex and often multifactorial: disturbances in digestive motility, altered visceral sensitivity, sphincter dysfunction, post-surgery, intestinal inflammation, dysbiosis, and impairment of the gut-brain axis. For example, it has been shown that one in four patients with inflammatory bowel disease in confirmed remission report digestive symptoms consistent with a functional bowel disorder, suggesting a possible pathophysiological continuum between these two conditions. The objective of this study is to collect prospective clinical and tests data and a biological collection from biological samples (digestive biopsies, blood, urine and fecal samples) collected as part of the standard care. This collection could identify diagnostic or prognostic markers of the therapeutic response.

Participants needed: 2,000
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: University Hospital, RouenUpdated: Jan 8, 2026Locations: 1Duration: 10 Years
Eligibility criteria

Patients over 18 years of age; [+4]

Person deprived of liberty by administrative or judicial decision or major prote... [+1]

Status: Recruiting

Efficacy of Conservative Treatment of Functional Defecatory Disorders in Females With Pelvic Organ Prolapse

This study is planned to evaluate the efficacy of complex conservative treatment (including tibial neuromodulation, biofeedback therapy, special pelvic floor training and diet modification) in women with pelvic organ prolapse

Participants needed: 100
Trial details
Phase: Phase 3Age: 18-70Biological sex: FemaleType: InterventionalSponsor: Federal State Budgetary Scientific Institution "Federal Research Centre of Nutrition, BiotechnologyUpdated: Aug 3, 2025Locations: 2
Eligibility criteria

Willingness to participate (signed informed consent form) [+1]

rectocele III grade; [+7]

Status: Not yet recruiting

NutriPlant - Opportunities for Increasing Consumption of Local Fruits and Vegetables

The effects of different foods to normal bowel function in adult population will be investigated. A randomised controlled intervention trial will be conducted on about 120 (30 per group) adult (18-70 years) subjects with functional constipation and irritable bowel syndrome with constipation according to the IV. Rome criteria. At least one week before inclusion in the study, patients will stop taking laxatives and other anti-constipation medications. Subjects will be randomly selected to consume one of the test foods (fresh apples, dried apples, sauerkraut) or the active control (psyllium) in the equivalent amount of 3 g of fiber per day for 4 weeks. Subjects will be asked not to change their lifestyle habits, such as diet and physical activity level, and not to take oral laxatives during the period of participation in the study.

Participants needed: 120
Trial details
Age: 18-70Biological sex: AllType: InterventionalSponsor: Institute of Nutrition, Slovenia (Nutris)Updated: Jan 21, 2025Locations: 1
Eligibility criteria

Signed informed consent of the participant to participate in the study [+3]

Known allergy to the investigated foods (fresh apples, dried apples, sauerkraut... [+7]

Status: Recruiting

A Single Arm Pilot Study of the Chinese Herbal Medicine Formula (SCD-2101) for the Functional Constipation in the Elderly

This single-arm, open-label pilot clinical trial will test the hypothesis that SCD-2101, a Chinese herbal medicine formula, will have efficacy in alleviating constipation in elderly individuals with functional constipation. All participants (n=14) will receive 2 weeks of intervention and 2 weeks of follow-up.

Participants needed: 14
Trial details
Age: 60+Biological sex: AllType: InterventionalSponsor: Hong Kong Baptist UniversityUpdated: Aug 20, 2024Locations: 1
Eligibility criteria

(1) Age ≥ 60 years old (2) Meet the Rome IV diagnostic criteria for functional c...

(1) Secondary constipation (constipation caused by drugs or other diseases); (2)...