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CompletedNCT04473079Updated Apr 17, 2024

Efficacy and Safety of Lacidofil® STRONG as an Adjuvant for Helicobacter Pylori Treatment in Non-ulcer Dyspepsia

A Phase 2/3 interventional study of Lacidofil and Placebo in Helicobacter Pylori Infection, sponsored by Lallemand Health Solutions. Completed at 1 site in Thailand. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-04-17.

Sponsored by Lallemand Health Solutions · Phase 2/3, Interventional, and Supportive care

Phase
Phase 2/3
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

Treatment for H. pylori eradication includes antibiotics. The treatment has decreased its efficiency (lower capability to eradicate the infection) due to increasing antibiotic resistance in the population. But the addition of probiotics to the treatment has been observed to increase efficiency, and decreasing the antibiotics' side effects. We set to evaluate whether Lacidofil® STRONG improves efficacy when added to the standard therapy to eradicate H. pylori.

Read the detailed description

This study aims at evaluating the efficacy of Lacidofil® STRONG as an adjuvant therapy to a standard 14-day H. pylori eradication treatment among H. pylori-positive participants with non-ulcer dyspepsia.

This is a randomized, placebo-controlled trial, with two parallel arms. Participants will be randomized to receive probiotic or placebo as adjuvant to the standard anti-H. pylori treatment. Each participant will be enrolled in the study for 12 weeks, during which they will receive the anti-H. pylori treatment and co-administration of investigational product (IP; for two weeks), followed by IP supplementation alone (for four weeks), and they will be followed-up 4 weeks after last IP administration.

02

Conditions studied

  • Helicobacter Pylori Infection
03

In context

Lead sponsor

Lallemand Health Solutions is the lead sponsor of 18 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • Thai patients consulting for dyspeptic symptoms.
  • Aged between 18 and 65 years.
  • Diagnosed for H. pylori infection using RUT and 13C-UBT.
  • H. pylori treatment naïve.
  • Able to provide .
  • Willing to maintain their usual physical activity regime and diet, as well as discontinuing the consumption probiotic-containing and fermented foods.

Exclusion criteria

Exclusion Criteria:

  • Upper gastrointestinal bleeding.
  • Presence of duodenal or gastric ulcers, MALT lymphoma, gastric resection, gastric as per endoscopy (visual assessment).
  • Current intake of antibiotics, such as amoxicillin, clarithromycin, metronidazole or fluoroquinolone.
  • Use of probiotics in the past month, and unwilling to undergo a 2-week before the study.
  • Use of NSAIDs, aspirin or other anti-inflammatory drugs within 1 week (for occasional use) or 3 weeks (for chronic use) of inclusion.
  • for gastric (e.g., coagulopathy).
  • Any history of allergy for penicillin, levofloxacin, clarithromycin or rabeprazole.
  • Receiving proton pump inhibitor within 4 weeks or receiving any antibiotics or bismuth within 2 weeks of trial initiation.
  • Being pregnant or breastfeeding.
  • Having severe underlying disease including end-stage renal disease requiring hemodialysis or peritoneal dialysis ( \< 15), cirrhosis with classification grade C, immuno-compromised host with AIDS, malignancy and/or cerebrovascular or cardiovascular disease.
  • Taking anticoagulants (e.g., warfarin) or anti- agents (e.g., clopidogrel)
  • Previous gastric surgery.
  • Having underlying heart disease, including congenital long syndrome.
  • Unwilling to stop taking over-the-counter, natural or herbal medicines for dyspeptic or gastrointestinal symptoms (e.g., antidiarrheal, anti-emetics, antacids) during the intervention period (6 weeks).
  • Milk and soy allergy.
  • Lactose intolerance.
Terms in these criteria, in plain language(9)

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
90 participants (actual)

Study arms

  • Experimental
    Experimental group

    These participants will receive the standard treatment for H. pylori eradication (proton-pump inhibitor and antibiotics) plus probiotic formulation (commercially-available as Lacidofil) for 12 weeks.

    Dietary Supplement: Lacidofil

  • Placebo comparator
    Placebo group

    These participants will receive the standard treatment for H. pylori eradication (proton-pump inhibitor and antibiotics) plus placebo for 12 weeks.

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementLacidofil

    Investigational product intake daily for 6 weeks. Co-administration of H. pylori treatment with investigational product the first two weeks only.

  • Dietary supplementPlacebo

    Investigational product intake daily for 6 weeks. Co-administration of H. pylori treatment with investigational product the first two weeks only.

06

What researchers measure

Primary outcomes

  1. Rate of H. pylori eradication

    Efficacy of the H. pylori eradication treatment supplemented with Lacidofil will be done by calculating the proportion of participants reaching H. pylori eradication in probiotics group compared to placebo, as per urea breath test (13C-UBT)

    Time frame: At week 6 after treatment

  2. Rate of H. pylori eradication

    Efficacy of the H. pylori eradication treatment supplemented with Lacidofil will be done by calculating the proportion of participants reaching H. pylori eradication in probiotics group compared to placebo, as per urea breath test (13C-UBT)

    Time frame: At week 12 after treatment

Secondary outcomes

  1. Efficacy: Frequency and severity of dyspeptic symptoms from baseline

    Evaluated by the administration of the Severity of Dyspepsia Assessment (SODA; ranges differ at all three scales) at the end of eradication treatment

    Time frame: At week 6 after treatment

  2. Efficacy: Severity of gastrointestinal symptoms

    Evaluated by the administration of the Gastrointestinal Symptoms Rating Scale (GSRS; overall score range 0 - No discomfort to 105 - Very severe discomfort) at the end of eradication treatment

    Time frame: At week 6 after treatment

  3. Efficacy: Health-related quality of life (HR-QoL)

    Evaluated by the administration of the 36-Item Short Form Survey Instrument (SF-36; score ranges 0 - worst possible health to 100 - best possible health) at the end of eradication treatment

    Time frame: At week 6 after treatment

  4. Quantification of adverse events during the intervention

    Quantification of adverse and serious adverse events deemed by PI as related to the probiotic

    Time frame: At week 12 after treatment

07

Study locations

1 site
  • Thammasat University Hospital
    Khlong Luang, Pathumthani 12120, Thailand
08

References and documents

Publications

  • Kiattiweerasak A, Aumpan N, Chonprasertsuk S, Pornthisarn B, Siramolpiwat S, Bhanthumkomol P, Nunanan P, Issariyakulkarn N, Mahachai V, Yamaoka Y and Vilaichone R-k. Efficacy and safety of Lacticaseibacillus rhamnosus R0011 and Lactobacillus helveticus R0052 as an adjuvant for Helicobacter pylori eradication: a double-blind, randomized, placebo-controlled study. Frontiers in Gastroenterology 2023; 2:1245993. doi: 10.3389/fgstr.2023.1245993

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2020 to primary completion in Jun 2022, 20 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 9, 2020
First posted
Jul 16, 2020
StartActual
Oct 16, 2020
Primary completionActual
Jun 17, 2022
CompletionActual
Jun 17, 2022
Last update
Apr 17, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 17, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04473079
Lead sponsor
Lallemand Health Solutions
Responsible party
Sponsor
First posted
Jul 16, 2020
Start date
Oct 16, 2020
Primary completion
Jun 17, 2022
Completion
Jun 17, 2022
Last update
Apr 17, 2024

Study contacts

Ratha-korn Vilaichone
principal investigator · Thammasat University Hospital

Oversight

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

Not currently enrolling

This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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