CClinicalTrials.gg
Status unknownNCT02730741PROVAMEUpdated Jan 19, 2018

Study of the Efficacy and Tolerance of Oral Treatment With a Total Freeze-dried Culture of Lcr Restituo® Sachets (Lactobacillus Rhamnosus Lcr35®) on Intolerance to Metformin (Diarrhoea) in Patients With Diabetes Type 2

A Phase 2 interventional study of Lcr restituo® sachet and Placebo in Antidiarrhoea, sponsored by Biose. Status unknown at 1 site in France. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2018-01-19.

Sponsored by Biose · Phase 2, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Jan 2018), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The mechanisms of diarrhoea under metformin are poorly known. Recent data indicate that a change in gut flora might be responsible for this intestinal disorder. The effect of metformin on the gut flora has been extensively described. It has been shown that the therapeutic effect of metformin depends on the microbiota. In agreement with these data, a recent publication has shown that metformin's main site of action in humans was the intestine. In light of these results, it now seems plausible that metformin's effect on the gut flora is responsible not only for its therapeutic effect but also for its undesirable digestive effects. In this respect, Lactobacillus rhamnosus has shown anti-diarrhoeal effects (approximately 50% reduction in diarrhoeas) in the contexts of infection-caused dysbiosis and post-antibiotic dysbiosis.

Hypothesis: Taking into account the favourable effect on intestinal dysbiosis-induced diarrhoeas observed with Lactobacillus rhamnosus, we put forward the hypothesis that Lactobacillus rhamnosus Lcr35® will have a favourable effect on metformin-induced diarrhoea.

Read the detailed description

There is a diabetes pandemic: The number of diabetes patients is expected to reach 500 million worldwide by 2030, of which 90% suffering from type 2 diabetes.

Therapeutically, metformin remains the only recommended first-line treatment. However, the common digestive effects of this molecule, concerning 30 to 50% of patients, are a major obstacle to its prescription. The availability of a treatment preventing these unwanted effects would optimise the treatment of millions of diabetes patients. This would represent a considerable advantage in terms of public health due to the expected reduction in cardiovascular morbidity.

The mechanisms of diarrhoea under metformin are poorly known. Recent data indicate that a change in gut flora might be responsible for this intestinal disorder. Recent data indicate that a change in gut flora might be responsible for this intestinal disorder. The effect of metformin on the gut flora has been extensively described. It has been shown that the therapeutic effect of metformin depends on the microbiota. In agreement with these data, a recent publication has shown that metformin's main site of action in humans was the intestine. In light of these results, it now seems plausible that metformin's effect on the gut flora is responsible not only for its therapeutic effect but also for its undesirable digestive effects. In this respect, Lactobacillus rhamnosus has shown anti-diarrhoeal effects (approximately 50% reduction in diarrhoeas) in the contexts of infection-caused dysbiosis and post-antibiotic dysbiosis.

Hypothesis: Taking into account the favourable effect on intestinal dysbiosis-induced diarrhoeas observed with Lactobacillus rhamnosus, we put forward the hypothesis that Lactobacillus rhamnosus Lcr35® will have a favourable effect on metformin-induced diarrhoea.

02

Conditions studied

  • Antidiarrhoea

Keywords

  • diarrhoea
  • metfomin
  • type 2 diabetes
  • microbiota
03

In context

Diabetes Mellitus, Type 2

9,359 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,318 are open to participants now.

This study's planned enrollment of 60 is below the median of 80 across 7,525 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Biose is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Disease-related

  • Patients who, from a metabolic perspective, could benefit from metformin treatment, namely patients for whom the latest available hemoglobin glycated (HbA1c) is no older than 3 months, and higher that suggested in recommendations, and lower than 9%.
  • Patients with type 2 diabetes who have not received metformin treatment for at least 2 months, or treated with a non-optimal dose of metformin, i.e. 1500 mg/day or less, due to a history of diarrhoea-type digestive intolerance reported with this drug.
  • Patients who at the time of entering the study have a blood sugar self-monitoring device.
  • Patients whose kidney function, evaluated in reference to creatinine clearance calculated using the Cockcroft formula, is 45ml/min or higher.

Cohort-related:

  • Patients aged between 18 and 75 years
  • For women of childbearing age:

    • to have a negative urine pregnancy test,
    • and use a contraceptive method deemed effective by the investigator throughout the trial
  • Patient able to speak and read French, having been informed of the study, and having voluntarily signed an Informed Consent Form
  • Patient covered by a social security scheme

Exclusion criteria

Exclusion Criteria:

Disease-related:

  • Patient presenting with cardinal signs of diabetes
  • Patients presenting with chronic diarrhoea or with a history of chronic intestinal inflammatory disease or having presented with an episode of acute diarrhoea in the 10 days preceding the inclusion.

Treatment-related:

  • Patients presenting with a contraindication to metformin treatment other than diarrhoea-type digestive intolerance manifestations.
  • Patients treated with a Inhibitors of dipeptidyl peptidase 4 (DPP-IV inhibitor).
  • Patients who presented with a serious adverse event associated with metformin prescription.
  • Patients who have taken orlistat in the preceding month or who have taken antibiotics in the preceding month.
  • Patients who have taken probiotics in the month preceding the inclusion visit.
  • Patients who have taken prebiotics in the 15 days preceding the inclusion visit.
  • Patients who have an allergy to one of the active ingredients or one of the excipients in the study product.

Cohort-related:

  • Patient with no referring physician.
  • Patient deemed by the investigator as unable to participate in the study
  • Patient unable to comply with the constraints of the protocol.
  • Patient whose metabolic condition does not justify the initiation or dose increase of metformin treatment.
  • History of bariatric surgery.
  • Patient is immunodeficient, or has a chronic viral infection with the hepatitis B or C, or the human immunodeficiency virus (HIV virus)
  • Patient is pregnant, planning a pregnancy, or without contraception.
  • Breastfeeding patient.
  • Patient with a previous illness which, according to the investigator, is likely to interfere with the study results or expose the patient to an additional risk.
  • Patient linguistically unable (unable to speak or write French) or mentally unable to understand and sign the Informed Consent Form.
  • Patient deprived of their liberty by order of the Courts or civil authorities or subject to a guardianship order.
  • Patient who is likely to not comply with treatment.
  • Patient unable to be contacted in the case of an emergency.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Lcr restituo® sachet and placebo

    The active treatment (Total freeze-dried culture of Lcr restituo® sachet) at a rate of 2 sachets of 1.5 grams per day (one sachet in the morning and one in the evening) and the placebo at a rate of 2 sachets of 1.5 grams per day (one sachet in the morning and one in the evening).

    Drug: Lcr restituo® sachet · Drug: Placebo

  • Experimental
    Lcr restituo® sachet

    The active treatment (Total freeze-dried culture of Lcr restituo® sachet) at a rate of 4 sachets of 1.5 grams per day (two sachets in the morning and two in the evening).

    Drug: Lcr restituo® sachet

  • Placebo comparator
    Placebo

    The placebo at a rate of 4 sachets of 1.5 grams per day (two sachets in the morning and two in the evening).

    Drug: Placebo

Interventions

  • DrugLcr restituo® sachet

    symptomatic treatment of diarrhoea

    Also known as: Bacilor

  • DrugPlacebo
06

What researchers measure

Primary outcomes

  1. Compare number of treated patients who have had diarrhoea in the verum group and in the placebo group between Visit 2 and Visit 5. Diarrhoea evaluated using the Bristol stool scale (types 5 to 7)

    Time frame: 3 months

07

Study locations

1 of 1 sites recruiting
  • BIOSE
    Aurillac, France
    • NIVOLIEZ Mr Adrien · Contact · a.nivoliez@biose.com · +330471465101
    • Pr. Jacques MOREAU · Principal investigator
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 19, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02730741
Lead sponsor
Biose
Responsible party
Sponsor
First posted
Apr 6, 2016
Start date
Jun 2016
Primary completion
Jun 2016
Last update
Jan 19, 2018

Study contacts

Richard BOISSIERE
Contact
r.boissiere@biose.com
+330471468764
Pr. Jacques MOREAU
principal investigator · Digestive unit - Hôpital RANGUEIL - Toulouse teaching hospital (CHU) France

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2018. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion