A Clinical Trial to Investigate the Safety and Efficacy of Bloat on Postprandial Bloating and Its Effects Over Time in Healthy Women

July 3, 2026 updated by: Arrae

A Randomized, Double-blind, Placebo-controlled, Parallel Clinical Trial to Investigate the Safety and Efficacy of Bloat on Postprandial Bloating and Its Effects Over Time in Healthy Women

The goal of this clinical trial is to investigate the safety and efficacy of Bloat on postprandial bloating in healthy women. The main question it aims to answer is what is the difference in change in bloating from pre-dose (postprandial) at t = 60 mins post-dose (postprandial) between Bloat and placebo, as assessed by the bloating numeric rating scale at screening/baseline. Participants will be asked to consume one dose of Bloat or Placebo for 55 days, and answer questionnaires on gas, bloating, and abdominal discomfort/distension.

Study Overview

Status

Not yet recruiting

Study Type

Interventional

Enrollment (Estimated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Ontario
      • London, Ontario, Canada, N6B3L1
        • KGK Science Inc.
        • Principal Investigator:
          • David Crowley, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Females aged 18-65 years, inclusive
  2. BMI of 18.5 to 29.9 kg/m2, inclusive
  3. Females not of child-bearing potential, defined as those who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal for at least one year prior to screening Or, Individuals of child-bearing potential must have a negative baseline urine pregnancy test and agree to use a medically approved method of birth control for the duration of the study. All hormonal birth control must have been in use for a minimum of 3 months. Acceptable methods of birth control include:

    • Hormonal contraceptives 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 and agrees to use contraception if planning on changing to heterosexual partner(s)
    • Vasectomy of partner at least 6 months prior to screening
    • Abstinence and agrees to use contraception if planning on becoming sexually active during the study
  4. Recurrent bloating and/or distension occurring on average at least one day per week which predominates over other GI symptoms in the previous three months, as assessed by the QI
  5. Experiences significant bloating after consumption of the standardized meal provided at screening/baseline, as assessed by a score of ≤ 2 pre-meal and a score of ≥ 5 post-meal
  6. Agrees to maintain current lifestyle habits (diet, physical activity, medications, supplements, and sleep) as much as possible throughout the study
  7. Provided voluntary, written, informed consent to participate in the study
  8. Healthy as determined by medical history as assessed by QI

Exclusion Criteria:

  1. Individuals who are pregnant, breast feeding, or planning to become pregnant during the study
  2. Participants residing in the same household as another study participant unless they are enrolled consecutively (e.g. not actively enrolled at the same time)
  3. Allergy, sensitivity, intolerance, or dietary restriction preventing consumption of IP, placebo, or standardized meal ingredients
  4. Current or history of any significant diseases of the GI tract or digestive disorders (e.g., irritable bowel syndrome, celiac disease, inflammatory bowel disease, functional constipation, gastroesophageal reflux disease, being treated within the past year for H. pylori infection or gastric ulcer), use of medications that inhibit peristaltic movement (e.g., opioids, loperamide), esophageal obstruction, or difficulty swallowing, as assessed by the QI
  5. Individuals with anemia, gallstones, or gallbladder disease as assessed by the QI
  6. Unstable metabolic disease or chronic diseases as assessed by the QI
  7. Unstable hypertension. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
  8. Type I or Type II diabetes
  9. Significant cardiovascular event in the past 6 months. Participants with no significant cardiovascular event on stable medication may be included after assessment by the QI on a case-by-case basis
  10. History of or current diagnosis with kidney and/or liver diseases as assessed by the QI on a case-by-case basis, with the exception of history of kidney stones in participants who are symptom free for 6 months
  11. Self-reported confirmation of current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
  12. Major surgery in the past 3 months or individuals who have planned surgery during the course of the study. Participants with minor surgery will be considered on a case-by-case basis by the QI
  13. Cancer, except skin basal cell carcinoma completely excised with no chemotherapy or radiation with a follow up that is negative. Volunteers with cancer in full remission for more than five years after diagnosis are acceptable
  14. Individuals with an autoimmune disease or are immune compromised as assessed by the QI
  15. Chronic use of cannabinoid products (>2 times/week) as assessed by the QI. Occasional users will be required to washout and abstain for the duration of the study period
  16. Regular use of tobacco or nicotine products in the past 6 months, as assessed by the QI. Occasional users will be required to washout and abstain for the duration of the study period
  17. Alcohol intake average of >2 standard drinks per day as assessed by the QI
  18. Alcohol or drug abuse within the last 12 months
  19. Current use of prescribed and/or over-the-counter (OTC) medications, supplements, and/or consumption of food/drinks that may impact the efficacy and/or safety of the IP (Section 7.3)
  20. Participation in other clinical research studies 30 days prior to baseline, as assessed by the QI
  21. Individuals who are unable to give informed consent
  22. Any other condition or lifestyle factor, that, in the opinion of the QI, may adversely affect the participant's ability to complete the study or its measures or pose significant risk to the participant

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Bloat
Bloat is comprised of a novel combination of ginger root extract, bromelain, peppermint leaf extract, dandelion root extract, lemon balm herb top extract, and slippery elm inner bark extract.
Participants will be instructed to take one dose (2 capsules) 30 minutes after consumption of the entire standardized meal with water during the screening/baseline clinic visit (Day 1). Participants will continue taking one dose daily, with water after dinner, for a total of 55 days. Participants will be advised to take the product at least two hours before or two hours after regular medication.
Placebo Comparator: Placebo
Placebo is comprised of white rice flour
Participants will be instructed to take one dose (2 capsules) 30 minutes after consumption of the entire standardized meal with water during the screening/baseline clinic visit (Day 1). Participants will continue taking one dose daily, with water after dinner, for a total of 55 days. Participants will be advised to take the product at least two hours before or two hours after regular medication.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The difference in change in bloating from pre-dose (postprandial) at t = 60 mins post-dose (postprandial) between Bloat and placebo
Time Frame: Day 1 to Day 56
The difference in change in bloating from pre-dose (postprandial) at t = 60 mins post-dose (postprandial) between Bloat and placebo, as assessed by the bloating numeric rating scale at screening/baseline. On a scale from 0 to 11, with 0 being 'none' and 10 being 'most I have ever experienced'.
Day 1 to Day 56

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The difference in change in bloating from pre-dose (postprandial) at t = 30 mins post-dose (postprandial) and t = 120 mins post-dose (postprandial) between Bloat and placebo
Time Frame: Day 1 to Day 56
The difference in change in bloating from pre-dose (postprandial) at t = 30 mins post-dose (postprandial) and t = 120 mins post-dose (postprandial) between Bloat and placebo, as assessed by bloating numeric rating scale at screening/baseline. On a scale from 0 to 11, with 0 being 'none' and 10 being 'most I have ever experienced'.
Day 1 to Day 56
The difference in change in gas from pre-dose (postprandial) at t = 30, 60, and 120 mins post-dose (postprandial) between Bloat and placebo
Time Frame: Day 1 to Day 56
The difference in change in gas from pre-dose (postprandial) at t = 30, 60, and 120 mins post-dose (postprandial) between Bloat and placebo, as assessed by the gas numeric rating scale at screening/baseline. On a scale from 0 to 11, with 0 being 'none' and 10 being 'most I have ever experienced'.
Day 1 to Day 56
The difference in change in abdominal discomfort from pre-dose (postprandial) at t = 30, 60, and 120 mins post-dose (postprandial) between Bloat and placebo
Time Frame: Day 1 to Day 56
The difference in change in abdominal discomfort from pre-dose (postprandial) at t = 30, 60, and 120 mins post-dose (postprandial) between Bloat and placebo, as assessed by the abdominal discomfort numeric rating scale at screening/baseline. On a scale from 0 to 11, with 0 being 'none' and 10 being 'most I have ever experienced'.
Day 1 to Day 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo
Time Frame: Day 1 to 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo, as assessed by PROMIS-GI Gas and Bloating Scale. All items are administered using a 5-point categorical response scale.
Day 1 to 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo
Time Frame: Day 1 to 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo, as assessed by PROMIS-GI Reflux Scale. All items are administered using a 5-point categorical response scale.
Day 1 to 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo
Time Frame: Day 1 to 56
The difference in change in GI symptoms from baseline at Day 28 and Day 56 between Bloat and placebo, as assessed by PROMIS- GI Belly Pain Scale. All items are administered using a 5-point categorical response scale.
Day 1 to 56
The difference in change in gas, bloating, and abdominal distention scores
Time Frame: Day 1 to Day 56
The difference in change in gas, bloating, and abdominal distention scores as assessed weekly by the gas, bloating, and abdominal distension numeric rating scales. Participants will be instructed to complete 11-point numeric rating scales from 0 ('none') to 10 ('most I have ever experienced')
Day 1 to Day 56
The difference in change in waist circumference from pre-dose (postprandial) at t = 60 mins post-dose (postprandial) between Bloat and placebo
Time Frame: Day 1 to Day 56
The difference in change in waist circumference from pre-dose (postprandial) at t = 60 mins post-dose (postprandial) between Bloat and placebo at screening/baseline
Day 1 to Day 56

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of post-emergent adverse events (AE)
Time Frame: Day 1 to Day 56
Incidence of post-emergent adverse events (AE)
Day 1 to Day 56
Clinically relevant changes in blood pressure after supplementation
Time Frame: Day 1 to Day 56
Change in blood pressure (mmHg) after supplementation
Day 1 to Day 56
Clinically relevant changes in heart rate after supplementation
Time Frame: Day 1 to Day 56
Change in heart rate (beats per minute) after supplementation
Day 1 to Day 56

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Investigators

  • Principal Investigator: David Crowley, MD, KGK Science Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

June 1, 2026

Primary Completion (Estimated)

October 1, 2026

Study Completion (Estimated)

October 1, 2026

Study Registration Dates

First Submitted

January 12, 2026

First Submitted That Met QC Criteria

January 21, 2026

First Posted (Actual)

January 27, 2026

Study Record Updates

Last Update Posted (Actual)

July 7, 2026

Last Update Submitted That Met QC Criteria

July 3, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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