ClinicalTrials.gg
CompletedNCT04531033LFUpdated May 16, 2024

Does Daily Supplementation of Lactobacillus Acidophilus MPH734, for One Week, Affect Acute (Immediate), Subacute (7 Days), and Post-treatment Discontinuation Lactose Metabolism, Gastrointestinal Symptoms, and Clinical Markers of Inflammation and Safety Compared to a Placebo

An interventional study of Lactobacillus acidophilus MPH734 and Placebo in Lactose Intolerance, sponsored by Lemuel W. Taylor IV. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-05-16.

Sponsored by Lemuel W. Taylor IV · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The purpose of this study is to determine if twice or three times daily supplementation of Lactobacillus acidophilus MPH734 (Lacto-FreedomTM, or LF), for one week, affects acute (immediate), subacute (7 days), and post-treatment discontinuation (30-, 60-, and 90- day) lactose metabolism, gastrointestinal symptoms, and clinical markers of inflammation and safety compared to a placebo.

Read the detailed description

Participants will be included and/or excluded in the study based on the criteria below:

Inclusion Criteria

  • Participants will be male or female between the ages of 18-55 years;
  • Participants will be apparently healthy and free from disease, as determined by a health history questionnaire;
  • Participants will not be excluded if he or she has been clinically diagnosed with a carbohydrate malabsorption disorder, or is or has been prescribed to take prescription or over-the-counter medication for such;
  • Participant has self-diagnosed or otherwise avoids consuming dairy, lactose, and other dairy-containing products, or regularly consumes Lactase enzymes for digestive support;
  • Participant agrees and can comply with the study protocol;
  • Participant provides signed and dated informed consent to participate in the study.

Subject Exclusion Criteria

  • Participant is or may be pregnant, is trying to become pregnant, or is breastfeeding;
  • Participant is insulin-dependent or -independent diabetic.
  • Participant currently uses, or has discontinued the use of nicotine-containing products within twelve (12) months of the start of the study;
  • Participant lives or works within an environment that chronically exposes the subject to second-hand smoke;
  • Participant currently uses, or has discontinued the use of recreational drugs or medicinal marijuana within twelve (12) months of the start of the study;
  • Participant has been clinically diagnosed with a digestive disorder such as gastrointestinal disease, chronic diarrhea or constipation, irritable or inflammatory bowel syndrome, Crohn's disease, or is, or has been prescribed to take prescription or over-the-counter medication for such;
  • Participant has ever undergone gastric bypass surgery, or has undergone an abdominal or other gastrointestinal surgery within twelve (12) months of the start of the study;
  • Participant is taking, or has taken antibiotic medications within two (2) weeks of the start of the study;
  • Participant has undergone a colonoscopy within two (2) weeks of the start of the study, or is scheduled to receive a colonoscopy during the study;
  • Participant has undergone a barium study or received an enema within two (2) weeks of the start of the study, or is scheduled to, or receives such during the study;
  • Participant is taking, or has taken probiotics within two (2) weeks of the start of the study;
  • Participant uses lactose digesting enzymes during the study;
  • Participant is taking, or has taken weight loss, prebiotic [e.g., fructo- or galacto-oligosaccharides (FOS or GOS), psyllium, or insulin fiber, etc.], or laxative / stool softener dietary supplements, over-the-counter, or prescription medications within two (2) weeks of the start of the study;
  • Participant is allergic to any ingredient present within the dietary supplement or placebo treatment;
  • Participant reports any unusual adverse events associated with this study that, in consultation with the study investigators or the participant's doctor recommends removal from the body;
  • Participant fails to comply with the study protocol.

Intervention Below is an overview of the study, including the phases, timepoints, and dependent variables that will be assessed. The total study duration for each subject is approximately fifteen (15) weeks - one (1) week of pre-test familiarization plus fourteen (14) weeks of intervention and testing. Subject testing will commence on a rolling enrollment basis (i.e., all subjects will not start, be tested on, and end the study at the same time).

24 hrs - 12 hrs: Restricted Diet

Discontinue eating:

  • All grains (including pasta, bread, cereals)
  • Fruits
  • Vegetables (including any food products that contain corn, corn starch, etc)
  • Nuts and seeds
  • Beans/ Legumes
  • All dairy products (including cheese, ice cream, butter, and yogurt)
  • All meats [except those approved (below)]

Allowed foods:

  • Baked or broiled chicken, fish or turkey (salt and pepper seasoning only)
  • Plain, steamed white rice
  • Eggs
  • Clear chicken or beef broth
  • White bread (only)
  • Participants may drink water, coffee, or tea; no sugar or artificial sweetener; no creamer/cream 12 hrs - 0 hrs: Fasting
  • Water only
  • No sleeping or vigorous exercise for at least (1) hour prior to any time during the breath test

TIMELINE:

Day -7 - 0 - Pre-screening \& Familiarization

  • Subjects complete one-week nutrition log via MyFitnessPal Day 0 - Baseline \& Acute Response (Lab Test #1; LT1)
  • Subject arrives 12-hr fasted (water only) and having followed the 24hr pre-test and lifestyle protocol -> Body Mass (BM) and Hydration (urine) measurements -> 5-minute seated -> Heartrate (HR) and Blood Pressure (BP) measurements -> Gastrointestinal Symptom Score -> Venous Blood collection -> Non-Alcohol Mouth Rinse -> Breath Analysis -> Treatment Dose Consumed with 8-10 fl. oz. H2O -> 30- minute seated -> 25-gram Lactose Challenge/Ingestion -> 60- minute seated -> Non-Alcohol Mouth Rinse -> Breath Analysis -> 60-minute seated -> Non-Alcohol Mouth Rinse -> Breath Analysis -> 60 minute seated -> Gastrointestinal Symptoms Score -> Non-Alcohol Mouth Rinse -> Breath Analysis Day 1 - Day 7 - Treatment Phase
  • Subjects consume three (3) servings per day of treatment at scheduled times and conditions for three (3) days -> On Day 4 subjects perform a Lactose Challenge / Ingestion Test at home after a12-hr fast (water only); Gastrointestinal Symptoms Score is collected prior to, and at 180 minutes postprandial (after lactose ingestion) -> Subjects continue to consume three (3) servings per day of treatment at scheduled times and conditions for three (3) days
  • Subjects complete one-week nutrition log Day 7 - Subacute Response (Lab Test #2; LT2)
  • Repeat LT1
  • Subjects discontinue treatment Day 8 - Day 37 - 30- Day Post Treatment Phase
  • Subjects perform weekly Lactose Challenge/Ingestion Testing at home with Gastrointestinal Symptoms Scoring
  • Subjects complete one-week nutrition logs Day 37 - 30-Day Post Treatment Response (Lab Test #3; LT3)
  • Repeat LT1/LT2 testing (less the Treatment Dose + 30-minute seating pre-Lactose Challenge / Ingestion) Day 38 - Day 67 - 60-Day Post Treatment Phase
  • Subjects perform weekly Lactose Challenge/Ingestion Testing at home with Gastrointestinal Symptoms scoring
  • Subjects complete one-week nutrition logs Day 67 - 60- Day Post Treatment Response (Lab Test #4; LT4)
  • Repeat LT1/LT2/LT3 testing (less treatment Dose + 30-minute seated pre- Lactose Challenge/Ingestion) Day 68 - Day 97 - 90-Day Treatment Phase
  • Subjects perform weekly Lactose Challenge/Ingestion Testing at home with Gastrointestinal Symptoms Scoring
  • Subjects complete one-week nutrition logs Day 97 - 90-Day Post Treatment Response (Lab Test #5; LT5)
  • Repeat LT1/LT2/LT3/LT4/ testing (less Treatment Dose + 30- minute seating pre- Lactose Challenge/ Ingestion)
02

Conditions studied

  • Lactose Intolerance

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Keywords

  • lactose intolerance
  • probiotic
03

In context

Lactose Intolerance

53 studies on the registry are indexed under Lactose Intolerance; 6 are open to participants now.

This study's enrollment of 50 is above the median of 41 across 41 interventional studies indexed under Lactose Intolerance.

Browse Lactose Intolerance studies →

Lead sponsor

This is the only study on the registry with Lemuel W. Taylor IV as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Participants will be male or female between the ages of 18-55 years;
  • Participants will be apparently healthy and free from disease, as determined by a health history questionnaire;
  • Participants will not be excluded if he or she has been clinically diagnosed with a carbohydrate malabsorption disorder, or is or has been prescribed to take prescription or over-the-counter medication for such;
  • Participant has self-diagnosed or otherwise avoids consuming dairy, lactose, and other dairy-containing products, or regularly consumes Lactase enzymes for digestive support;
  • Participant agrees and can comply with the study protocol;
  • Participant provides signed and dated to participate in the study.

Exclusion criteria

Exclusion Criteria:

  • Participant is or may be pregnant, is trying to become pregnant, or is breastfeeding;
  • Participant currently uses, or has discontinued the use of nicotine-containing products within twelve (12) months of the start of the study;
  • Participant lives or works within an environment that chronically exposes the subject to second-hand smoke;
  • Participant currently uses, or has discontinued the use of recreational drugs or medicinal marijuana within twelve (12) months of the start of the study;
  • Participant has been clinically diagnosed with a digestive disorder such as gastrointestinal disease, chronic diarrhea or constipation, irritable or inflammatory bowel syndrome, Crohn's disease, or is, or has been prescribed to take prescription or over-the-counter medication for such;
  • Participant has ever undergone gastric bypass surgery, or has undergone an abdominal or other gastrointestinal surgery within twelve (12) months of the start of the study;
  • Participant is taking, or has taken antibiotic medications within two (2) weeks of the start of the study;
  • Participant has undergone a colonoscopy within two (2) weeks of the start of the study, or is scheduled to receive a colonoscopy during the study;
  • Participant has undergone a barium study or received an enema within two (2) weeks of the start of the study, or is scheduled to, or receives such during the study;
  • Participant is taking, or has taken probiotics within two (2) weeks of the start of the study;
  • Participant uses lactose digesting enzymes during the study;
  • Participant is taking, or has taken weight loss, prebiotic [e.g., fructo- or galacto-oligosaccharides (FOS or GOS), psyllium, or insulin fiber, etc.], or laxative / stool softener dietary supplements, over-the-counter, or prescription medications within two (2) weeks of the start of the study;
  • Participant is allergic to any ingredient present within the dietary supplement or placebo treatment;
  • Participant reports any unusual adverse events associated with this study that, in consultation with the study investigators or the participant's doctor recommends removal from the study;
  • Participant fails to comply with the study protocol.
Terms in these criteria, in plain language(1)

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.

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.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
50 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Taken once prior to the first testing session, 3x a day every day for the 7 days of supplementation, and taken one last time during second testing session.

    Dietary Supplement: Placebo

  • Experimental
    Low dose 10 billion CFU per day

    Taken once prior to the first testing session, 3x a day every day for the 7 days of supplementation, and taken one last time during second testing session.

    Dietary Supplement: Lactobacillus acidophilus MPH734

  • Experimental
    High dose 15 billion CFU per day

    Taken once prior to the first testing session, 3x a day every day for the 7 days of supplementation, and taken one last time during second testing session.

    Dietary Supplement: Lactobacillus acidophilus MPH734

Interventions

  • Dietary supplementLactobacillus acidophilus MPH734

    After supplementing with oral probiotics, it has been suggested that select probiotics capable of expressing Beta-glucosidase enzyme activity may likewise be effective treatment for lactose intolerance.

    Also known as: Lacto-FreedomTM, or LF

  • Dietary supplementPlacebo

    placebo made to match dietary supplement being tested.

06

What researchers measure

Primary outcomes

  1. Lactobacillus Acidophilus MPH734's Effect on lactose digestion in individuals who identify as lactose sensitive, intolerant, or avoid dairy.

    Primary outcome of this study is to determine if twice or three times daily supplementation of Lactobacillus acidophilus MPH734 (Lacto-FreedomTM, or LF), for one week, affects acute (immediate), subacute (7 days), and post-treatment discontinuation (30-, 60-, and 90- day) lactose metabolism, gastrointestinal symptoms, and clinical markers of inflammation and safety compared to a placebo.

    Time frame: 97 days

07

Study locations

1 site
  • University of Mary Hardin-Baylor
    Belton, Texas 76513, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 16, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04531033
Lead sponsor
Lemuel W. Taylor IV
Collaborators
Manzo Pharmaceuticals
Responsible party
Lemuel W. Taylor IV (Principal Investigator, University of Mary Hardin-Baylor) — Sponsor-investigator
First posted
Aug 28, 2020
Start date
Aug 25, 2020
Primary completion
Aug 25, 2021
Completion
Nov 14, 2022
Last update
May 16, 2024

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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