European Journal of Clinical Pharmacology

, Volume 75, Issue 1, pp 21–31 | Cite as

A prospective, interventional, randomized, double-blind, placebo-controlled clinical study to evaluate the efficacy and safety of Bacillus coagulans LBSC in the treatment of acute diarrhea with abdominal discomfort

  • Chiranjit MaityEmail author
  • Anil Kumar Gupta
Clinical Trial



Increasing resistance towards antibiotics has augmented the use of probiotics for the treatment of diarrhea and associated symptoms. Probiotics are active microorganisms which exert some health benefits when consumed in the right amount. This randomized, double-blind, placebo-controlled clinical trial was conducted on 60 “intention to treat” subjects to evaluate the safety and efficacy of probiotic preparation Lactic Acid Bacillus (LAB containing active ingredient Bacillus coagulans strain LBSC) for the treatment of acute diarrhea with abdominal discomfort.


The Test-A arm (n = 30) was on B. coagulans LBSC [2 billion/g] and Placebo-B arm (n = 30) was on the carrier. The primary outcomes were the time to last unformed stool (TTLUS), number of unformed stools, change in severity of abdominal pain, time to complete resolution of abdominal discomfort, complete remission of diarrhea, and quality of life (QoL). The secondary outcomes were physical examination and vitals, hematological analysis, and assessment of reported adverse events (AEs) or serious adverse events (SAEs).


Trial data showed that the LAB was well-tolerated by participants at the dose provided. The LAB was effective in recovering from acute diarrhea with abdominal pain and discomforts and exhibited improved cluster of QoL. No AEs or SAEs were reported during the trial.


It is evident that the test drug, i.e., LAB (B. coagulans strain LBSC) is safe and effective for improving the pathophysiological conditions related to acute diarrhea and abdominal discomfort evaluated through stage-II clinical trial.


Bacillus coagulans Diarrhea Abdominal pain Bristol stool scale Quality of life 



Authors are grateful to Mr. V.L. Rathi, Mr. C.L. Rathi, Mr. Mukund Kabra, and Mr. Piyush Rathi at Advanced Enzyme Technologies Ltd. for their technical inputs and providing the laboratory facilities to carry out the study.

Author contribution statement

CM designed the study protocol, and monitored and prepared the manuscript. AKG reviewed the protocol and manuscript, and approved with technical inputs.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This study is conducted in compliance with the applicable ethical standards Harmonized Tripartite Guidelines for Good Clinical Practice (GCP), the relevant sections of Good Laboratory Practice (GLP), local laws and regulations, and the provisions of the Declaration of Helsinki. The EC Approval [Reference No.: RH/IEC/AP-002/2018 and Dated: 16/01/2018] and registration of the Clinical Trials Registry—India (CTRI) [Reference No.: CTRI/2018/01/011635 and Dated: 31/01/2018] were obtained prior to the clinical trial study.

Supplementary material

228_2018_2562_MOESM1_ESM.docx (25 kb)
ESM 1 (DOCX 24 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Probiotics LaboratoryAdvanced Enzyme Technologies Ltd.Thane (W)India

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