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OpenTrials
Completed

NCT Number: NCT06132269

Evaluation the Effect of AKK Formula on Intestinal Microbiota Regulation and Body Composition

The AKK formula, a prebiotic blend, can effectively promote the proliferation of A. muciniphila. In this study, we attempt to explore the clinical efficacy of AKK formula for A. muciniphila proliferation and weight management.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Taipei Medical University

Taipei, 110, Taiwan

About this study

This is a double-blind, randomized, parallel and placebo-controlled study. Subjects are informed to consume the samples daily for 8 weeks. The person who is evaluated as obesity by the investigator will be invited to participate in this trial. In this study, we attempt to explore the clinical efficacy of AKK formula for A. muciniphila proliferation and weight management.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subjects shall have a body mass index (BMI) of >23.0 to <32.5.0 kg/m2.
  • Subjects shall have waist circumference of >80 cm for men and women.
  • Subject is willing to maintain habitual dietary, lifestyle, and physical activity throughout the trial and do not plan to change the place of living during the study.
  • Subject understands the study procedures and signs forms providing informed consent to participate in the study and authorizes the release of relevant protected health information to the Study Investigator.

Exclusion criteria

  • Clinically important gastrointestinal condition that would potentially interfere with the evaluation of study products (e.g., inflammatory bowel disease, irritable bowel syndrome, gastric reflux, indigestion, dyspepsia, Crohn's disease, celiac disease, history of gastrointestinal surgical intervention for inducing weight loss, gastroparesis, and clinically significant lactose or gluten intolerance or other food/food component allergies).
  • Recent (within 2 weeks of Visit 1, Day -7 - screening visit) history of an episode of acute GI illness such as nausea/vomiting or diarrhea (defined as >3 loose or liquid stools/d).
  • Self-reported history (within 6 weeks of Visit 1, Day -7 -screening visit) of constipation (< 3 bowel movements/week) or diarrhea (loose stools >3 loose or liquid stools in one day) that in the judgement of the Study Investigator is not due to acute infection (e.g., stomach flu), food poisoning, temporary medication, etc.
  • Subjests with mental disorder(depression, schizophrenia), cardiovascular disease/Arrhythmia/Heart Failure/Myocardial Infarction/or other Heart Condition, Hypothyroidism Or Uncontrolled Diabetic Gastrointestinal Disease (Crohn's Disease)/Gastrointestinal Resection Surgery/Irritable Bowel Syndrome, kidney condition, autoimmune disorder, Thyroid or hormonal abnormalities/Abnormalities If the immune system that can affect the weight of thyroid levels, like anemia/porphyrinosis, pancreatitis etc .
  • Uncontrolled hypertension (systolic blood pressure ≥140 mm Hg or diastolic blood pressure ≥90 mm Hg) as defined by blood pressure measured on Visit 1. Stable use of hypertension medication is allowed (defined as no change in medication regimen within the 3 mo prior to Visit 1.)
  • Any known food allergy, intolerance, or sensitivity to study product ingredients.
  • Extreme dietary habits, eating disorders or physical activity patterns at the discretion of the Study Investigator.
  • History or presence of cancer in the prior 2 years, except for non-melanoma skin cancer.
  • Major trauma or any other surgical event within 3 months of Visit 1.
  • Signs or symptoms of an active infection of clinical relevance within 5 days of Visit 1.
  • Weight loss or gain >4.5 kg in the 3 months prior to Visit 1.
  • Current use or planned use/participation in any weight loss regimen during the study period.
  • Anti-biotic, antifungal, or antiparasitic use within 3 months of Visit 1 and throughout the study period.
  • Use of anti-obesity, blood sugar lowering medications, insulin injections, hormones, diuretics , hormoneal treatment orsteroids within 1 month of Visit 1 and throughout the study period. Use of nasal and non-prescription topical treatments is permitted.
  • Chronic use (i.e., daily or on a regular basis) of anti-inflammatory medications (e.g., NSAIDS) within 1 month of Visit 1.
  • Use of medications (over-the-counter or prescription) and/or dietary supplements known to influence GI function including, but not limited to prebiotics, probiotics laxatives and/or enemas - including suppositories, fiber supplements, H2 blockers, proton pump inhibitors, antacids, anti-diarrheal agents, antidepressants, and/or anti-spasmodics within 3 weeks of Visit 1. Standard multi-vitamin/multi-mineral supplements are permitted.
  • Subject has undergone endoscopy or endoscopy preparation within 3 months prior to Visit 1.
  • Exposure to any non-registered drug product, including street drugs, within 4 weeks prior to Visit 1.
  • Recent history (within 12 months of Visit 1) of alcohol or substance abuse. Alcohol abuse is defined as >14 drinks/week (1 drink = 12 oz (354 ml) beer, 5 oz (148 ml), or 1 ½ oz (44 ml) distilled spirits).
  • Subject has a condition that, in the opinion of the Study Investigator, would interfere with his/her ability to provide informed consent, comply with the study protocol, confound interpretation of study results, or place the subject at undue risk.
  • Female subjects who typically experience changes in GI symptoms or bowel habits (e.g., increased or decreased laxation, bloating, abdominal cramping) at the time of menstruation.
  • Female subjects with irregular menstruation which does not allow for easy scheduling of stool collection outside of the menstrual period.
  • Female subject who is pregnant, planning to be pregnant during the study period, lactating, or is of childbearing potential and is unwilling to commit to the use of a medically approved form of contraception throughout the study period. Subjects who become pregnant during the study will be dismissed from the study.

Treatment and study plan

AKK formula prebiotic sachet

Dietary Supplement

5 g/sachet, containing AKK formula, Indigestible Maltodextrin, Crystalline Maltitol, Calcium Carbonate, Citric Acid, Steviol Glycosides, and flavor.

Subjects will consume 1 sachet per day for 8 weeks.

Placebo sachet

Dietary Supplement

5 g/sachet, containing Indigestible Maltodextrin, Crystalline Maltitol, Calcium Carbonate, Citric Acid, Steviol Glycosides, and flavor.

Subjects will consume 1 sachet per day for 8 weeks.

Primary outcomes

  1. Relative abundance of Akkermansia muciniphila in gut

    Time frame: Change from Baseline relative abundance of A. muciniphila at 8 weeks

    Collect subject's feces for bacterial analysis. Akkermansia muciniphila will be quantified by quantitative PCR.

  2. The change of waist circumference

    Time frame: Change from Baseline waist circumference at 4 weeks, and 8 weeks

    The waist circumference will be assessed by measuring tape. Unit: centimeter

  3. The change of Waist-to-height ratio

    Time frame: Change from Baseline Waist-to-height at 4 weeks, and 8 weeks

    Waist-to-height ratio can be obtained by dividing waist size by height and is an effective indicator of risks associated with obesity.

  4. The change of body mass index (BMI)

    Time frame: Change from Baseline BMI at 4 weeks, and 8 weeks

    BMI is a measurement of a person's leanness or corpulence based on their height and weight, and is intended to quantify tissue mass.The body mass index (BMI, kg/m^2) and body mass (kg) will be assessed by InBody.

Secondary outcomes

  1. The change of total body mass

    Time frame: Change from Baseline total body mass at 4 weeks, and 8 weeks

    The total body mass (kg) will be assessed by Bioelectrical impedance analysis (BIA).

  2. The change of total lean mass

    Time frame: Change from Baseline total lean mass at 4 weeks, and 8 weeks

    The total lean mass (kg) will be assessed by Bioelectrical impedance analysis (BIA).

  3. The change of total fat mass

    Time frame: Change from Baseline total fat mass at 4 weeks, and 8 weeks

    The total fat mass (kg) will be assessed by Bioelectrical impedance analysis (BIA).

  4. The change of total fat rate

    Time frame: Change from Baseline total fat rate at 4 weeks, and 8 weeks

    The total fat rate (%) will be assessed by Bioelectrical impedance analysis (BIA).

  5. The change of visceral fat volume

    Time frame: Change from Baseline visceral fat volume at 4 weeks, and 8 weeks

    The visceral fat volume (cm^2) will be assessed by Bioelectrical impedance analysis (BIA).

  6. The change of hip circumference

    Time frame: Change from Baseline hip circumference at 4 weeks, and 8 weeks

    The hip circumference will be assessed by measuring tape. Unit: centimeter

  7. The change of insulin sensitivity

    Time frame: Change from Baseline insulin sensitivity at 8 weeks

    Insulin sensitivity is assessed by HOMA-IR. HOMA-IR= fasting insulin (microU/L) x fasting glucose (nmol/L)/22.5. Venous blood will be sampled to measure concentrations of fasting glycemia and insulin.

  8. The change of total cholesterol

    Time frame: Change from Baseline total cholesterol at 8 weeks

    Venous blood will be sampled to measure concentrations of total cholesterol.

  9. The change of High Density Lipoprotein Cholesterol (HDL-C)

    Time frame: Change from Baseline HDL-C at 8 weeks

    Venous blood will be sampled to measure concentrations of HDL-C.

  10. The change of Low Density Lipoprotein Cholesterol (LDL-C)

    Time frame: Change from Baseline LDL-C at 8 weeks

    Venous blood will be sampled to measure concentrations of LDL-C.

  11. The change of triglyceride

    Time frame: Change from Baseline triglyceride at 8 weeks

    Venous blood will be sampled to measure concentrations of triglyceride.

  12. The change of intestinal microbiota

    Time frame: Change from Baseline intestinal microbiota at 8 weeks

    Collect subject's feces for bacterial analysis. Intestinal microbiota will be assessed by Next Generation Sequencing (NGS).

  13. The change of gastrointestinal tolerability

    Time frame: Change from Baseline gastrointestinal tolerability at 4 weeks, and 8 weeks

    Gastointestinal tolerability will be assessed by The Gastrointestinal Symptom Rating Scale (GSRS).The GSRS has a seven-point graded Likert-type scale where 1 represents absence of troublesome symptoms and 7 represents very troublesome symptoms.

  14. The change of stool type

    Time frame: Change from Baseline gastrointestinal tolerability at 4 weeks, and 8 weeks

    The stool type will be assessed by The Bristol Stool Form Scale (BSFS) daily. The BSFS is a scale that classifies stools, ranging from the hardest (type 1) to the softest (type 7).

Sponsors and collaborators

Lead sponsor

TCI Co., Ltd.

Industry

Registry information

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Nov 15, 2023
Registry last updated
May 6, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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