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Recruiting

NCT Number: NCT06911073

A Study to Evaluate a Postbiotic in Supporting Weight Loss and Metabolic Health

This study aims to evaluate the impact of a specific oral postbiotic supplement on metabolic health in overweight adults.

Recruiting

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Able Biolabs, LLC

Birmingham, Alabama, 35203, United States

Location status: Recruiting

Location contact

Moroni Berrios

CONTACT

[email protected]

3612496084

About this study

Obesity poses substantial health challenges contributing significantly to chronic metabolic disorders such as type 2 diabetes mellitus, cardiovascular disease, and diminished quality of life for people worldwide. Central to obesity-related metabolic dysfunction is dysregulation of appetite control, glucose homeostasis, insulin sensitivity, and systemic inflammation. Evidence indicates a strong connection between these metabolic disturbances and alterations in the gut microbiome, implicating microbiota dysbiosis as a potential target for intervention. Microbiome-based interventions underscore a promising approach in weight management and metabolic health.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Provide voluntary signed and dated informed consent.
  • Be in good health as determined by medical history.
  • Age between 18 and 65 yr (inclusive).
  • Body Mass Index of 25.0 - 40.0 (inclusive).
  • Subject agrees to maintain existing dietary and physical activity patterns throughout the study period.
  • Agree to refrain from other probiotic and postbiotic supplement products throughout the duration of the trial.
  • Subject is willing and able to comply with the study protocol.
  • Willing and able to agree to the requirements and restrictions of this study, be willing to give voluntary consent, be able to understand and read the questionnaires, and carry out all study-related procedures.

Exclusion criteria

  • History of unstable or new-onset cardiovascular/cardiorespiratory, liver, or renal conditions.
  • Alcohol abuse (more than 2 standard alcoholic drinks per day or more than 10 drinks per week) or drug abuse or dependence within the past 6 months.
  • Previous bariatric surgery.
  • Current smokers or smoking within the past month.
  • History of hyperparathyroidism or an untreated thyroid condition.
  • History of malignancy in the previous 5 years except for non-melanoma skin cancer (basal cell cancer or squamous cell cancer of the skin).
  • Other known gastrointestinal or metabolic conditions that might impact nutrient absorption or metabolism, e.g., short bowel syndrome, irritable bowel syndrome (IBS), diarrheal illnesses, history of colon resection, gastroparesis, Inborn-Errors-of-Metabolism (such as PKU).
  • Chronic inflammatory condition (e.g., rheumatoid arthritis, Crohn's, ulcerative colitis, Lupus, HIV/AIDS, etc.).
  • Previous medical diagnosis of gout or fibromyalgia.
  • Pregnant women, women trying to become pregnant, women less than 120 days postpartum or nursing women. Any woman that is sexually active will have to take report their pregnancy status prior to enrolling and during the trial if they become pregnant.
  • Known sensitivity to any ingredient in the test formulations as listed in the product label.
  • Currently participating in another research study with an investigational product or have been in another research study in the past 30 days.

Treatment and study plan

Postbiotic

Dietary Supplement

Active ingredients:

Vitamin D (as cholecalciferol) - 10 mcg Vitamin B12 (as methylcobalamin) - 200 mcg Chromium (as chromium picolinate) - 600 mcg resM™ Postbiotic (L. plantarum RSB11® HI - 16B cells) - 40 mg White mulberry (Morus alba) leaf extract - 250 mg Fenugreek (Trigonella foenum-graecum) seed extract - 200 mg

Inactive ingredients:

Microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate, silica, water, carrageenan, potassium acetate

Other names: resM™ GLP-1 Postbiotic

Placebo

Dietary Supplement

Active ingredients:

N/A

Inactive ingredients:

Microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate, silica, water, carrageenan, potassium acetate

Primary outcomes

  1. To determine the effect of resM™ on weight

    Time frame: 8 weeks

    Change from baseline in weight (lb)

  2. To determine the effect of resM™ on BMI

    Time frame: 8 weeks

    Change from baseline in BMI. Weight and height will be combined to report BMI in kg/m^2)

  3. To determine the effect of resM™ on food cravings

    Time frame: 8 weeks

    Change in reported food cravings from baseline based on Food Craving Questionnaire Trait-reduced (FCQ-T-r) scores. The total score reflects the severity of food cravings where 90 indicates the most severe and 15 indicates the least severe.

  4. To determine the effect of resM™ on blood metabolic markers

    Time frame: 8 weeks

    Change from baseline in serum fasting glucose

  5. To determine the effect of resM™ on blood metabolic markers

    Time frame: 8 weeks

    Change from baseline in serum insulin levels

  6. To determine the effect of resM™ on blood metabolic markers

    Time frame: 8 weeks

    Change from baseline in whole blood HbA1c (glycated hemoglobin)

Secondary outcomes

  1. To determine the effect of resM™ on GLP-1

    Time frame: 8 weeks

    Change from baseline in plasma active and inactive GLP-1 protein

  2. To determine the effect of resM™ on DPP-4

    Time frame: 8 weeks

    Change from baseline in plasma DPP4

  3. To determine the effect of resM™ on gut microbiome

    Time frame: 8 weeks

    Change from baseline in gut microbiome as assessed by 16s metagenomic sequencing on fecal samples

  4. To determine the effect of resM™ on depression

    Time frame: 8 weeks

    Change from baseline in reported depression levels based on Patient Health Questionnaire 9 (PHQ-9) scores. The total score reflects the severity of depression where 1 indicates minimal depression and 27 indicates severe depression.

  5. Change in Albumin after taking resM™

    Time frame: 8 weeks

    Change from baseline in Albumin

  6. Change in Albumin/Globulin ratio after taking resM™

    Time frame: 8 weeks

    Change from baseline in Albumin/Globulin ratio

  7. Change in Alkaline Phosphatase after taking resM™

    Time frame: 8 weeks

    Change from baseline in Alkaline Phosphatase

  8. Change in Alanine Aminotransferase (ALT) after taking resM™

    Time frame: 8 weeks

    Change from baseline in Alanine Aminotransferase (ALT)

  9. Change in Aspartate Aminotransferase (AST) after taking resM™

    Time frame: 8 weeks

    Change from baseline in Aspartate Aminotransferase (AST)

  10. Change in BUN/Creatinine ratio after taking resM™

    Time frame: 8 weeks

    Change from baseline in blood urea nitrogen (BUN)/creatinine ratio

  11. Change in Calcium after taking resM™

    Time frame: 8 weeks

    Change from baseline in calcium

  12. Change in Chloride after taking resM™

    Time frame: 8 weeks

    Change from baseline in chloride

  13. Change in Glucose after taking resM™

    Time frame: 8 weeks

    Change from baseline in glucose

  14. Change in Sodium after taking resM™

    Time frame: 8 weeks

    Change from baseline in sodium

  15. Change in Total Bilirubin after taking resM™

    Time frame: 8 weeks

    Change from baseline in total bilirubin

  16. Change in Total Protein after taking resM™

    Time frame: 8 weeks

    Change from baseline in total protein

  17. Change in Urea Nitrogen after taking resM™

    Time frame: 8 weeks

    Change from baseline in Urea Nitrogen

  18. Change in White Blood Cell (WBC) count after taking resM™

    Time frame: 8 weeks

    Change from baseline in white blood cell (WBC) count

  19. Change in Red Blood Cell (RBC) count after taking resM™

    Time frame: 8 weeks

    Change from baseline in red blood cell (RBC) count

  20. Change in Hemoglobin (Hb) after taking resM™

    Time frame: 8 weeks

    Change from baseline in hemoglobin (Hb)

  21. Change in Hematocrit (Hct) after taking resM™

    Time frame: 8 weeks

    Change from baseline in hematocrit (Hct)

  22. Change in Mean Corpuscular Volume (MCV) after taking resM™

    Time frame: 8 weeks

    Change from baseline in mean corpuscular volume (MCV)

  23. Change in Mean Corpuscular Hemoglobin (MCH) after taking resM™

    Time frame: 8 weeks

    Change from baseline in mean corpuscular hemoglobin (MCH)

  24. Change in Mean Corpuscular Hemoglobin Concentration (MCHC) after taking resM™

    Time frame: 8 weeks

    Change from baseline in mean corpuscular hemoglobin concentration (MCHC)

  25. Change in Red Cell Distribution Width (RDW) after taking resM™

    Time frame: 8 weeks

    Change from baseline in red cell distribution width (RDW)

  26. Change in Platelet Count after taking resM™

    Time frame: 8 weeks

    Change from baseline in platelet count

  27. Change in Mean Platelet Volume (MPV) after taking resM™

    Time frame: 8 weeks

    Change from baseline in Mean Platelet Volume (MPV)

  28. Change in Neutrophils after taking resM™

    Time frame: 8 weeks

    Change from baseline in neutrophil count (absolute) and differential (percent)

  29. Change in Lymphocytes after taking resM™

    Time frame: 8 weeks

    Change from baseline in lymphocyte count (absolute) and differential (percent)

  30. Change in Monocytes after taking resM™

    Time frame: 8 weeks

    Change from baseline in monocyte count (absolute) and differential (percent)

  31. Change in Eosinophils after taking resM™

    Time frame: 8 weeks

    Change from baseline in eosinophil count (absolute) and differential (percent)

  32. Change in Basophils after taking resM™

    Time frame: 8 weeks

    Change from baseline in basophil count (absolute) and differential (percent)

  33. Safety - participants experiencing adverse events

    Time frame: 8 weeks

    The number of participants experiencing Treatment Emergent Adverse Events (TEAEs)

  34. Safety - total adverse events

    Time frame: 8 weeks

    The total number of Treatment Emergent Adverse Events (TEAEs)

Study contacts

Contact information is provided by the study sponsor or research team.

Project Manager

CONTACT

[email protected]

617-634-3675

Sponsors and collaborators

Lead sponsor

ResBiotic Nutrition, Inc.

Industry

Collaborators

  • Able Biolabs, LLC

Registry information

Official study title

A Double-Blind, Randomized Placebo-Controlled Study to Evaluate a Postbiotic Supplement in Supporting Weight Loss and Metabolic Health

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Apr 4, 2025
Registry last updated
Sep 9, 2025

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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