| Not Yet Recruiting | Effectiveness and Safety of Benemix® in Constipation NCT07427914 | Universidad de Antioquia | N/A |
| Recruiting | Chronic Ingestion of Fructooligosaccharide and Psyllium on Intestinal Transit in Women With Functional Constip NCT07202481 | Federal University of Minas Gerais | N/A |
| Not Yet Recruiting | Soluble and Osmotic Fibre (SOLOS) Diet for Constipation NCT07388589 | Singapore Institute of Technology | — |
| Not Yet Recruiting | The Efficacy and Safety of Microbiota Transplantation Combined With Prebiotics for Treatment of Functional Con NCT07386795 | Peking Union Medical College Hospital | N/A |
| Not Yet Recruiting | Co-Development and Validation of Colonic Symptom Pictograms for Young People NCT07337343 | University of Auckland, New Zealand | — |
| Recruiting | Parents of Children With Constipation Will be Asked About Their Views on Their Children's Physical Activity. NCT07300423 | Vastra Gotaland Region | — |
| Recruiting | Peristeen Light Explorative Clinical Investigation NCT07126327 | Coloplast A/S | N/A |
| Not Yet Recruiting | Nutritional Intervention for Constipation Symptoms in Patients With Parkinson's Disease NCT07213856 | Hospital de Clinicas de Porto Alegre | N/A |
| Not Yet Recruiting | Validation Of A Parent Administered Symptom Score For Unsettled Infants (Every Baby is UnIQue) NCT07121062 | University Hospital Southampton NHS Foundation Trust | — |
| Recruiting | The Safety and Efficacy of Fecal Microbiota Transplantation Combined With Nutritional Intervention in the Trea NCT07387952 | Peking Union Medical College Hospital | N/A |
| Active Not Recruiting | Cross-Cultural Adaptation, Validity, and Reliability of the Wexner Questionnaire in Patients With Constipation NCT07340203 | Ahi Evran University Education and Research Hospital | — |
| Not Yet Recruiting | A Trial of Actazin Versus PEG 3350 for Maintenance Therapy in Children With Constipation NCT06836024 | Hamilton Health Sciences Corporation | Phase 2 / Phase 3 |
| Completed | Osteopathic Visceral Manipulation on Functional Constipation in Obese Adults NCT06925802 | MTI University | N/A |
| Not Yet Recruiting | Effect of a Low FODMAP Diet in IBS and Functional Constipation with Bloating: a Randomized Double-Blind Trial NCT06871748 | Mahidol University | N/A |
| Completed | Acupuncture Versus Biofeedback Training on Bowel Motility in Children With Functional Constipation NCT06618326 | Cairo University | N/A |
| Unknown | Barriers to Rectal Irrigation in Defaecatory Dysfunction NCT06569446 | Guy's and St Thomas' NHS Foundation Trust | — |
| Not Yet Recruiting | Influence of Modern Colon Hydrotherapy on Intestinal Transit NCT06438068 | Universidad Complutense de Madrid | N/A |
| Completed | Safety, Tolerability and Pharmacokinetics of CDD-2101 in Health Volunteers NCT06570668 | Centre for Chinese Herbal Medicine Drug Development Limited | Phase 1 |
| Recruiting | The ReVo Study: Low-volume vs High-volume Rectal Irrigation NCT06100055 | Guy's and St Thomas' NHS Foundation Trust | N/A |
| Completed | MOWOOT Device Treatment for Adults With Chronic Constipation NCT04666155 | usMIMA S.L. | N/A |
| Not Yet Recruiting | Comparison of Efficacy & Tolerability Of PEG 4000 Versus PEG 3350+ Electrolytes for Pediatric Fecal Disimpacti NCT06349031 | Institute of Medical Sciences and SUM Hospital | Phase 4 |
| Recruiting | The Effects of TTNS, TTNS Combined With PHUS, and Conventional Therapy With PHUS in the Treatment of PFC. NCT07077044 | Hadassah Medical Organization | N/A |
| Unknown | The Effects of Postisometric Relaxation Technique in Female Patients With Dyssynergic Defecation NCT06215924 | Izmir Bakircay University | N/A |
| Recruiting | Predicting Treatment Outcomes in Refractory Constipation Through Brain Connectivity Evaluation NCT06221722 | Xijing Hospital of Digestive Diseases | — |
| Unknown | Efficacy of Probiotic Against Functional Constipation NCT06122558 | Min-Tze LIONG | Phase 2 |
| Recruiting | Effects of Lactulose on Gut Microbiota and Metabolism in Diabetic Constipated Patients NCT07065942 | Peking Union Medical College Hospital | N/A |
| Completed | The Impact of Respiratory Muscle Training and Patient Education on Chronic Constipation Outcomes NCT05823259 | University of Miami | N/A |
| Completed | Evaluation of the Effectiveness of a Mobile Application in the Treatment of Children With Functional Constipat NCT07025135 | Medical University of Gdansk | N/A |
| Completed | Evaluation of Changes in Bowel Movement Frequency Following the Consumption of PHGG Compared to Placebo NCT05714410 | Société des Produits Nestlé (SPN) | N/A |
| Completed | Acupuncture for Functional Constipation in Older Adults NCT05496543 | Yin Ping | N/A |
| Completed | A Clinical Study on Warm Needling Moxibustion at Tianshu and Guanyuan Acupoints NCT07483229 | The First Affiliated Hospital of Henan University of Traditional Chinese Medicine | N/A |
| Unknown | Assessing GS500 in Functional Constipation NCT04887896 | Gelesis, Inc. | N/A |
| Withdrawn | The Impact of Aerobic Interval and Inspiratory Muscle Training On Patient Reported Outcome Scores In Individua NCT05321953 | University of Miami | N/A |
| Completed | Transition to Infant Formula Feeding on Gastrointestinal Regurgitation (TIGER) Study NCT05363553 | Dairy Goat Co-operative (N.Z.) Limited | N/A |
| Recruiting | Prevalence and Natural History of Functional Gastrointestinal Disorders Among At-risk Infants. NCT06031025 | Fondazione Policlinico Universitario Agostino Gemelli IRCCS | — |
| Unknown | The Relationship Between Functional Constipation and Sacroiliac Joint Dysfunction NCT05432453 | Abant Izzet Baysal University | — |
| Completed | Comparison of Two Interventions in Children with Functional Constipation NCT05371678 | Abant Izzet Baysal University | N/A |
| Unknown | Efficacy of Educational Intervention as Supporting Element in the Treatment of Functional Constipation in Chil NCT05191810 | Medical University of Warsaw | N/A |
| Completed | Examination of a New Irrigation System for Transanal Irrigation in Children With Fecal Incontinence NCT05032534 | University of Aarhus | N/A |
| Completed | Effect of Bacillus Coagulans in Adults With With Functional Constipation NCT04997187 | Pusan National University Yangsan Hospital | N/A |
| Completed | Effect and Safety of the Dietary Supplement Mannite in Pediatric Patients With Chronic Functional Constipation NCT06404853 | Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo di Alessandria | N/A |
| Completed | Effect of Microbiome Modulation by Diet in Functional Constipation NCT05429333 | Istanbul Medipol University Hospital | N/A |
| Completed | RCE With FMT in the Treatment of Childhood Constipation NCT05035784 | Shengjing Hospital | N/A |
| Completed | Evaluation of Changes in Bowel Movement Frequency Following the Consumption of PHGG in Adults with Constipatio NCT04587635 | Société des Produits Nestlé (SPN) | N/A |
| Withdrawn | A Pilot Study to Explore the Role of Gut Flora in Chronic Constipation NCT04148248 | ProgenaBiome | — |
| Unknown | Efficacy and Safety of PEG 3350 for Treatment of Chronic Constipation NCT03957668 | Fakultas Kedokteran Universitas Indonesia | Phase 3 |
| Unknown | Physiological, Microbiological and Metabolomic Effects of Fruit Products NCT04086134 | King's College London | N/A |
| Active Not Recruiting | Bowel And Bladder Function in Infant Toilet Training NCT04082689 | Dalarna County Council, Sweden | N/A |
| Completed | Lactobacillus Plantarum IS 10560 Supplementation in Women With Functional Constipation NCT03885973 | Fakultas Kedokteran Universitas Indonesia | Phase 2 / Phase 3 |
| Recruiting | Improvement of Understanding of Pediatric Sacral Neuromodulation: Therapeutic Strategies and Outcome Variables NCT07519915 | Friedrich-Alexander-Universität Erlangen-Nürnberg | N/A |
| Withdrawn | HyGIeaCare Procedure for Chronic Constipation NCT03335969 | HyGIeaCare, Inc. | N/A |
| Completed | The Role of Probiotics in Improving Quality of Life in Women With Functional Constipation NCT03829358 | Fakultas Kedokteran Universitas Indonesia | Phase 2 / Phase 3 |
| Unknown | Effect of a Mixture of Fibers and Carbohydrates on Intestinal Transit in Children Diagnosed With Functional Co NCT04028258 | Laboratorios Ordesa | N/A |
| Unknown | FMT Treating Constipation Patients With Depression and/or Anxiety Symptoms - Clinical Efficacy and Potential M NCT03233100 | Jianfeng Gong | N/A |
| Unknown | Reclassifying Constipation Using Imaging and Manometry NCT03226145 | University of Nottingham | N/A |
| Completed | The Multi-disciplinary Treatment of Functional Gut Disorders Study NCT03078634 | St Vincent's Hospital Melbourne | N/A |
| Unknown | Transcutaneous Electrical Acupoint Stimulation (TEAS) for Chronic Constipation NCT03243955 | University of California, Los Angeles | N/A |
| Completed | Study on the Effect of Rhubarb Extract on Stool Frequency and Biological Markers of Intestinal Function in Sen NCT05541991 | ortis | N/A |
| Completed | Adherence/Outcomes After Use of Constipation Action Plan NCT03821532 | Nemours Children's Clinic | N/A |
| Completed | Evaluation of the Safety of Lubiprostone in Pediatric Participants Aged ≥ 6 Years to < 18 Years With Functiona NCT02766777 | Sucampo Pharma Americas, LLC | Phase 3 |
| Completed | Effect of Weight Reduction on Constipation NCT03106857 | Ahlia University | N/A |
| Completed | Evaluation of the Effect of Chicory Inulin-type Fructans in Constipated Adults NCT05447481 | Sensus | N/A |
| Completed | Clinical Trial Assessing the Efficacy and Safety of Hépar® in Chronic Constipation NCT03348007 | Quanta Medical | N/A |
| Suspended | Genomic Resources for Enhancing Available Therapies (GREAT1.0) Study NCT04306939 | University of Pittsburgh | — |
| Completed | Lubiprostone for Children With Constipation NCT02138136 | Sucampo Pharma Americas, LLC | Phase 3 |
| Completed | Lubiprostone in Children With Functional Constipation NCT02042183 | Sucampo Pharma Americas, LLC | Phase 3 |
| Unknown | Lactobacillus Reuteri in Treatment of Functional Abdominal Pain and Chronic Constipation in Children NCT01587846 | Sisters of Mercy University Hospital | Phase 3 |