CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 22 enrolled / 22 target
Drug / intervention
Probiotic formulation +1 moredietary
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT07652827
NCT07652827N/ACompletedOn Track (1.0/mo)Completion was 17mo ago

Efficacy of a Probiotic Formulation (Lacticaseibacillus Rhamnosus - Limosilactobacillus Fermentum) on Gastrointestinal Symptoms in Adults With Lactose Intolerance and Methanogenic Intestinal Overgrowth

Universidad de Concepcion·interventional·Posted Jun 17, 2026·Updated Jun 17, 2026

In Brief

A clinical study evaluating Probiotic formulation and Maltodextrin (Placebo) for Lactose Intolerance. Completed, enrolled 22 participants across 1 site.

Detailed Summary

Introduction: Lactose intolerance (LI) is characterized by specific gastrointestinal symptoms following the consumption of dairy products and lactose-containing foods, symptoms that may also be experienced by individuals with intestinal methanogenic overgrowth (IMO). However, such clinical manifestations may be modulated by the use of probiotics; the aim of this study was to analyze the preliminary efficacy of a probiotic formulation on gastrointestinal symptoms in adults with LI and IMO. Materials and Methods: A randomized, double-blind, placebo-controlled pilot study was conducted with 22 adults who tested positive on a hydrogen breath test (HBT); they were assigned to intervention or placebo groups based on their diagnosis. Accordingly, they completed a Questionnaire on symptoms of Lactose Intolerance (QSLT) and underwent successive nutritional assessments.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesChile
Collaborators--

Timeline

N/ACompletedFinished
20252026
First PostedJun 17, 2026
Enrollment StartAug 12, 2024
Primary CompletionJan 6, 2025
Study CompletionJan 31, 2025
TodayJul 2, 2026
Enrollment to primary: 5 monthsPosted 15 days ago

Arms & Interventions

Probioticexperimental

Participants who received the capsules containing the two probiotic strains

Dietary Supplement: Probiotic formulation
Placeboplacebo_comparator

Participants who received the capsules without the probiotic strains

Dietary Supplement: Maltodextrin (Placebo)

Interventions

Probiotic formulationdietary

The individuals had to take one capsule daily containing the bi-strain probiotic formulation (Lacticaseibacillus rhamnosus L-134 and Limosilactobacillus fermentum L-33) for 12 weeks.

Maltodextrin (Placebo)dietary

The individuals had to take one capsule daily containing maltodextrin for 12 weeks.