Lactose Intolerance clinical trials
The registry lists 55 studies for Lactose Intolerance across more than 10 countries. 7 are recruiting or about to start. Per ClinicalTrials.gov, last updated 2026-09-15.
Status
- Completed
- 41
- Recruiting
- 5
- Status unknown
- 5
- Not yet recruiting
- 2
- Withdrawn
- 1
- Terminated
- 1
Phase
- Phase 3
- 4
- Phase 4
- 3
- Phase 2
- 2
- Phase 1
- 1
Where
- United States
- 14
- Switzerland
- 4
- Spain
- 3
- Germany
- 3
- France
- 3
- Pakistan
- 2
Who runs them
Ritter Pharmaceuticals, Inc. (4) · Purdue University (3) · University Hospitals, Leicester (3) · a2 Milk Company Ltd. (2) · Eurofarma Laboratorios S.A. (2) · Société des Produits Nestlé (SPN) (2) · Vivante Health (1) · Sir Run Run Shaw Hospital (1)
Studies
Recruiting first, then most recently updated. Showing 50 of 55 — search for more.
- Milk for Diabetes PreventionRecruitingNCT06513026Not applicable1 country
- Screening of Lactose Intolerance Among IBS Patients Diarrhea DominantNot yet recruitingNCT06931379
- Goat vs. Cow Milk Digestive ToleranceRecruitingNCT07239856Not applicable1 country
- Proper Dietary Management, Follow-up, and Lactase Enzyme Supplementation for Lactose IntoleranceRecruitingNCT067736501 country
- Comparing the Adaptation of Commercial Milk and A2 Milk in Lactose MaldigestersRecruitingNCT05669274Not applicable1 country
- Comparing the Inflammation, Maldigestion and Symptoms Due to Commercial Milk and A2 MilkRecruitingNCT05660278Not applicable1 country
- The Role of Irritable Bowel Syndrome in Lactose Intolerance (LION)Not yet recruitingNCT05100719Not applicable1 country
- Lactobreath: A Study to Diagnose Lactose Intolerance Using Breath MarkersCompletedNCT06177938Not applicable1 country
- Efficacy of a Probiotic Formulation in Adults With Lactose Intolerance and Methanogenic Intestinal OvergrowthCompletedNCT07652827Not applicable1 country
- Low-grade Inflammation and Gut Symptoms From A2 and Hydrolyzed A1 MilkCompletedNCT05305391Not applicable1 country
- Lactase Enzyme Supplementation for Growth and Feeding Tolerance in Preterm InfantsCompletedNCT07494123Not applicable1 country
- Trial of Rice-Based F-75 in Severe Malnutrition & Persistent Diarrhea in Children (SAM-RICE Study)CompletedNCT07070856Not applicable1 country
- MSOT for Assessment of Intestinal Transit Time in Lactose Intolerance PatientsCompletedNCT06617364Not applicable1 country
- The Effect of Galactooligosaccharides (GOS) on the Gut Microbiota of Lactose Intolerance IndividualsCompletedNCT06915129Not applicable1 country
- Comparison of the Effectiveness of Oral Lactase Enzyme and Lactose Free FormulaCompletedNCT06827405Not applicable1 country
- Lactose Intolerance in Infants With Gastrointestinal DisturbancesCompletedNCT06789068Not applicable1 country
- Effect of a Combination of Lactase and L. Salivarius DSM 34078 in Individuals With Lactose IntoleranceCompletedNCT06107088Not applicable1 country
- Goat Milk Infant Formula Comfort StudyCompletedNCT06301139Not applicable1 country
- Association Between Lactase Deficiency, and the Small Intestinal Microbiome in Adults.CompletedNCT038600511 country
- Effects of Raw Versus Other Milk Sources on Lactose DigestionCompletedNCT01129791Not applicable1 country
- A Bifido Bacteria to Improve Lactose Digestion and ToleranceStatus unknownNCT05668468Not applicable1 country
- Effect of a Probiotic With High Beta-galactosidase Activity on Patients With Lactose IntoleranceCompletedNCT05367453Not applicable1 country
- Evaluation of GIMate Handheld Hydrogen Breath Monitor for Diagnosis of Lactose MalabsorptionCompletedNCT04754724Not applicable1 country
- Fructose and Lactose Intolerance and Malabsorption in Functional Gastrointestinal DisordersStatus unknownNCT020858891 country
- Lactose Intolerance and Cow's Milk Protein Allergy in Non-celiac Wheat Sensitivity PatientsCompletedNCT030082521 country
- Effects of A2 Milk on Gastrointestinal Function in Non-lactose Milk IntoleranceCompletedNCT03060395Not applicable1 country
- HYBRID: Hydrogen Breath Test in Lactose DigestionCompletedNCT02703987Not applicable1 country
- Clinical Utility of Breath Tests in GICompletedNCT032618561 country
- Effect of I31 Probiotic on Lactose IntoleranceCompletedNCT04164394Not applicable1 country
- Perceived Lactose IntoleranceCompletedNCT013312651 country
- Effect of Probiotic Supplementation on Lactose Maldigestion Induced by Lactose SolutionCompletedNCT03814668Not applicable1 country
- Evaluation of the Efficacy, Durability, Safety, and Tolerability of RP-G28 in Patients With Lactose IntoleranceCompletedNCT03597516Phase 31 country
- Effect of B.Bifidum 900791 Intake in Adult With Hypolactasia and Lactose IntoleranceStatus unknownNCT03952988Not applicable
- Validation of a Home-screening Test for Lactose IntoleranceWithdrawnNCT00844766
- Modulation of Lactase Expression by a New PPARgamma Ligand in Duodenal BiopsiesCompletedNCT02902016Not applicable1 country
- Effect of a Standard Meal on the Pharmacokinetic Profile of RP-G28 in Healthy Adult Male and Female SubjectsCompletedNCT03563846Phase 11 country
- Efficacy, Safety, and Tolerability Study of RP-G28 in Subjects With Lactose IntoleranceCompletedNCT02673749Phase 2/31 country
- Evaluation of LacTEST for the Diagnosis of Hypolactasia in Adults and Elderly Patients Presenting With Clinical Symptoms of Lactose IntoleranceCompletedNCT02636413Phase 41 country
- β-galactosidase Producing Probiotic Strains to Improve Lactose DigestionCompletedNCT02518295Not applicable1 country
- Incidence of Lactose Intolerance Among Self-reported Lactose Intolerant PeopleCompletedNCT02878876Phase 4
- Whole Milk Intake and Cardio-metabolic Risk FactorsStatus unknownNCT02798718Not applicable1 country
- The Effect of Probiotics on Lactose IntoleranceCompletedNCT01593800Not applicable
- Secondary Lactose Intolerance Due to Chronic Norovirus InfectionCompletedNCT01840891Not applicable1 country
- Comparison of the Colonic Metabolism in Patients With Lactose Intolerance and Healthy ControlsCompletedNCT021714031 country
- Effects Comparison of A1 and A2 Milk on Gastrointestinal Physiology, Symptoms and Cognitive BehaviorCompletedNCT02406469Phase 4
- Althera® Versus Nutramigen / Cow's Milk IntoleranceCompletedNCT01727115Not applicable1 country
- The Effects of Lactose Intolerance on Gastrointestinal Function and Symptoms in a Chinese PopulationStatus unknownNCT01286597Not applicable1 country
- A Non-inferiority, Multicenter and Randomized, Multiple-Dose Study About a Treatment to HypolactasiaCompletedNCT01145586Phase 31 country
- A Non-inferiority, Multicenter and Randomized, Single-Dose Study About a Treatment to Hypolactasia (LAILAI)CompletedNCT01145339Phase 31 country
- Acid Lactase in Combination With Yoghurt Bacteria for Improvement of Lactose Digestion in Lactose MalabsorbersCompletedNCT01593631Not applicable1 country