Skip to content

A Study to Evaluate OPTI-BIOME™ Bacillus Subtilis MB40 on Abdominal Discomfort, Gas and Bloating in a Healthy Population

A Randomized, Double-blind, Placebo-controlled, Parallel Study to Evaluate the Efficacy and Safety of OPTI-BIOME™ Bacillus Subtilis MB40 on Abdominal Discomfort, Gas and Bloating in a Healthy Population

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02950012
Enrollment
100
Registered
2016-10-31
Start date
2016-10-31
Completion date
2017-02-28
Last updated
2021-10-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bloating

Keywords

Healthy, Bloating, Abdominal Discomfort, Gas, Probiotic, Bacillus Subtillis

Brief summary

The purpose of this study is to investigate the effects of OPTI-BIOME™ (Bacillus subtilis MB40), a probiotic supplement, on bloating, gas and abdominal discomfort symptoms in otherwise healthy adults.

Interventions

DIETARY_SUPPLEMENTOPTI-BIOME™ Bacillus subtilis MB40
OTHERPlacebo

Sponsors

KGK Science Inc.
CollaboratorINDUSTRY
BIO-CAT Microbials, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male or female 18-75 years (inclusive) of age 2. BMI 18.5-29.9 ±1 kg/m2 3. Abdominal bloating intensity score ≥5 and at least two days of bloating over the 2 weeks prior to screening (assessed at screening by Abdominal Bloating questionnaire) 4. Participants categorized as 'high bloaters' as defined by an average bloating score ≥ 5 during the run-in period assessed at baseline by question 3 of the Modified Daily Abdominal Discomfort, Gas, and Bloating Questionnaire, AND/OR, participants categorized as 'high frequency bloaters' as defined by greater than 7 days of high bloating (defined above) during the run-in period. * For females, this should not include abdominal discomfort or bloating experienced during menstruation, if such symptoms occur due to menstrual cycle females should go through another run-in period. 5. If female, participant is not of child bearing potential, which is defined as females who have had a hysterectomy or oophorectomy, bilateral tubal ligation or are post-menopausal (natural or surgically with \> 1 year since last menstruation) OR Females of childbearing potential must agree to use a medically approved method of birth control and have a negative urine pregnancy test result. Acceptable methods of birth control include: * Hormonal contraceptives (stable for 1 month) including oral contraceptives, hormone birth control patch (Ortho Evra), vaginal contraceptive ring (NuvaRing), injectable contraceptives (Depo-Provera, Lunelle), or hormone implant (Norplant System) * Double-barrier method * Intrauterine devices * Non-heterosexual lifestyle or agrees to use contraception if planning on changing to heterosexual partner(s) * Vasectomy of partner (shown successful as per appropriate follow-up) 6. Healthy as determined by laboratory results, medical history, and physical exam 7. Agrees to abstain from consuming unpasteurized bacteria-fermented foods including cheese and yogurt for 1 week prior to screening visit and throughout the study 8. Agrees to abstain from using fiber supplements 2 weeks prior to screening and for the duration of the study 9. Agrees to maintain current dietary habits and activity/training levels for two weeks prior to baseline and for the course of the study 10. Agrees to avoid probiotics for one week prior to screening and for the course of the study 11. Willingness to complete all the study requirements and attend all clinic visits. 12. Has given voluntary, written, informed consent to participate in the study

Exclusion criteria

1. Females who are pregnant, breastfeeding, or planning to become pregnant during the course of the trial 2. History of chronic inflammation or structural abnormality of the digestive tract (inflammatory bowel disease, duodenal or gastric ulcer, intestinal obstruction, or symptomatic cholelithiasis) 3. Nocturnal and/or progressive abdominal pain (abdominal pain that increases in intensity and is consistent on regular basis) 4. Significant weight loss over the past 3 months (significance to be determined by the Qualified Investigator) 5. Type 1 and type 2 diabetes 6. History of colorectal cancer, anal abscess, anal fistula, anal fissure, anal stenosis, gastric retention or obstruction, bowel resection, rectocele, or colostomy 7. Cancer except skin cancers completed excised with no chemotherapy or radiation following and with a negative follow up. 8. Diagnosis of adenomatous polyposis, irritable bowel syndrome, chronic gastritis or functional dyspepsia, crohn disease, and celiac disease Renal or hepatic insufficiency 9. Gastrointestinal bleeding or acute infection 10. Immunodeficiency 11. History of organ transplant 12. Use of antibiotics within 4 weeks of randomization Routine (at least 3 times per week) consumption of probiotic or prebiotic supplements or supplemented foods and are unwilling to stop at least one week prior to screening and throughout the study 13. Use of immunosuppressant drugs 14. Change in anti-psychotic medication within 3 months of randomization 15. Abdominal surgery within 6 months of randomization 16. Plan to donate blood during the study or within 30 days of completing the study 17. Participation in a clinical research trial within 30 days prior to randomization 18. Allergy or sensitivity to study supplement or placebo ingredients 19. Alcohol abuse (\>2 standard alcoholic drinks per day) or drug abuse within the last 6 months 20. Use of Medicinal Marijuana 21. Cognitively impaired and/or unable to give informed consent 22. Unstable medical conditions 23. Clinically significant abnormal laboratory results at screening 24. Any other condition which in the Qualified Investigator's opinion may adversely affect the volunteer's ability to complete the study or its measures or which may pose significant risk to the volunteer

Design outcomes

Primary

MeasureTime frameDescription
Weekly mean of the daily bloating scores4 weeksDiscomfort, Gas and Bloating questionnaire

Secondary

MeasureTime frameDescription
Weekly mean of the daily gas score (flatulence)4 weeksDiscomfort, Gas and Bloating questionnaire
Weekly mean of the abdominal pain score4 weeksDiscomfort, Gas and Bloating questionnaire
Modified Gastrointestinal Symptom Rating Scale (GSRS) score4 weeks
Weekly mean stool consistency scores4 weeksBristol stool scale
Weekly mean number of bowel movements4 weeksDaily Bowel Habits Diary
Quality of Life4 weeksRand SF-36

Other

MeasureTime frame
Incidence of clinically significant abnormal complete blood panel4 weeks
Incidence of clinically significant abnormal electrolytes4 weeks
Incidence of clinically significant abnormal kidney function panel4 weeks
Incidence of clinically significant abnormal liver function panel4 weeks
Incidence of adverse events4 weeks
Incidence of clinically significant abnormal vital signs4 weeks

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026