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Metabolic SyndromeNCT03201068

Probiotic Supplement and Microbiome, Immune System and Metabolic Syndrome

A study testing Probiotic supplement in people with Metabolic Syndrome and Microbiome, run by Stanford University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will define the impact of a probiotic supplement on microbiome, immune system, and metabolic syndrome. This study will determine the degree to which a probiotic supplement can 1) improve metabolic markers and metrics of metabolic syndrome, 2) alter microbiota composition and function, 3) impact microbiota… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Metabolic Syndrome, Microbiome, Immune Function
What is being tested?
Probiotic supplement
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
42 participants
Where
1 siteUnited States
Study dates
14 Sep 2017to 4 Dec 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 18 and older
  • Must have metabolic syndrome as defined by having at least 2 of the 5 criteria per either ATP III guidelines OR International Diabetes Federation (IDF) guidelines:
  • ATP III guidelines:
  • Abdominal obesity, defined as a waist circumference in men ≥102 cm (40 in) and in women ≥88 cm (35 in)
  • Serum triglycerides ≥150 mg/dL (1.7 mmol/L) or drug treatment for elevated triglycerides
  • Serum high-density lipoprotein (HDL) cholesterol <40 mg/dL (1 mmol/L) in men and <50 mg/dL (1.3 mmol/L) in women or drug treatment for low HDL cholesterol
Show all 16Show fewer
  • Blood pressure ≥130/85 mmHg or drug treatment for elevated blood pressure
  • Fasting plasma glucose (FPG) ≥100 mg/dL (5.6 mmol/L) or drug treatment for elevated blood glucose
  • International Diabetes Federation Guidelines:
  • Increased waist circumference, with ethnic-specific waist circumference cut-points:
  • White and all other ethnic groups - Men ≥ 94 cm; Women ≥ 80 cm South Asians, Chinese, and Japanese - Men ≥ 90 cm; Women ≥ 80 cm
  • PLUS any two of the following:
  • Triglycerides ≥150 mg/dL (1.7 mmol/L) or treatment for elevated triglycerides
  • HDL cholesterol <40 mg/dL (1.03 mmol/L) in men or <50 mg/dL (1.29 mmol/L) in women, or treatment for low HDL
  • Systolic blood pressure ≥130, diastolic blood pressure ≥85, or treatment for hypertension
  • FPG ≥100 mg/dL (5.6 mmol/L) or previously diagnosed type 2 diabetes; an oral glucose tolerance test is recommended for patients with an elevated fasting plasma glucose, but not required.

Who cannot join

  • Body Mass Index (BMI) ≥ 40
  • LDL >160 mg/dL.
  • Vital signs outside of acceptable range at Screening Visit: blood pressure >159/99, oral temperature ≥ 100°F, pulse >100.
  • Use of any of the following drugs within the last 6 months:systemic antibiotics (must be discontinued and avoided for 2 months prior to the study start), antifungals, antivirals or antiparasitics (intravenous, intramuscular, or oral); oral, intravenous, intramuscular, nasal or inhaled corticosteroids; cytokines; methotrexate or immunosuppressive cytotoxic agents;
  • Use of large doses of commercial probiotics consumed within the last 6 months (greater than or equal to 108 cfu or organisms per day) - includes tablets, capsules, lozenges, chewing gum or powders in which probiotic is a primary component (must be discontinued and avoided for one month prior to the study start). Ordinary dietary components such as fermented beverages/milks, yogurts, foods do not apply.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Stanford University

    Stanford, California, 94305

Other trials in United States

About this study

Official title: Impact of a Probiotic Supplement on the Microbiome, Immune System, and Metabolic Syndrome

This study will define the impact of a probiotic supplement on microbiome, immune system, and metabolic syndrome. This study will determine the degree to which a probiotic supplement can 1) improve metabolic markers and metrics of metabolic syndrome, 2) alter microbiota composition and function, 3) impact microbiota metabolites, short-chain fatty acids-potential normalizers of metabolic and immune dysfunction, and 4) regulate immune status and function including reducing chronic, systemic inflammation as assessed by high dimensional immune profiling.

Read the detailed description

The centrality of the gut microbiota to human health has emerged in just the last decade, with the last three years implicating our modern, deteriorated gut microbiota in numerous chronic diseases. It is likely dietary changes in the last half-century consistent with adoption of the Western diet have had an adverse impact on the gut microbiota. A critically important next step in this field of research is to identify how different probiotic supplements can potentially restore the microbiota in alignment with the optimization of human health, particularly in regard to the reversal or prevention of chronic diseases including obesity, metabolic syndrome, and inflammatory bowel disease. This study is designed to elicit and contrast the amount of increase in microbiota diversity and related metabolic output achievable following consumption of a probiotic supplement commonly available to the general population. The results could contribute to dietary recommendations for reversing the chronic disease epidemics of westernization.

Being tested
Probiotic supplement, Placebo
Medical subject headings
Metabolic Syndrome, Inflammation

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Probiotic supplementDietary supplement

    Also called Renew Life Formulas, Inc

    Probiotic supplement capsule

  • PlaceboDietary supplement

    Placebo capsule

Study groups in NCT03201068
Study groupRoleWhat they receive
Probiotic supplementExperimentalRenew Life Formulas, Inc
Receives: Dietary Supplement: Probiotic supplement
PlaceboPlacebo comparatorPlacebo capsule
Receives: Dietary Supplement: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Metabolic syndrome parameters: Waist Circumference, Blood pressure, Triglycerides, HDL-cholesterol, and Fasting Glucose.

    10-week change from Baseline (week 4) in the number of subjects presenting 3 of the 5 parameters for metabolic syndrome (waist circumference, blood pressure, triglycerides, HDL-cholesterol, and fasting glucose) at 14 weeks (end of intervention).

    Measured: Baseline (week 4) and end of intervention (week 14)

Secondary outcomes (5)
  1. Microbiota composition

    10-week change from baseline (week 4) in 16S rRNA enumeration at 14 weeks (end of intervention), determined using Illumina-based sequencing.

    Measured: Baseline (week 4) and end of intervention (week 14)

  2. Microbiota metabolites

    10-week change from Baseline (week 4) in short-chain fatty acids (SCFA) at 14 weeks (end of intervention).

    Measured: Baseline (week 4) and end of intervention (week 14)

  3. Cytokines

    10-week change from Baseline (week 4) in cytokines at 14 weeks (end of intervention).

    Measured: Baseline (week 4) and end of intervention (week 14)

  4. Chemokines

    10-week change from Baseline (week 4) in chemokines at 14 weeks (end of intervention).

    Measured: Baseline (week 4) and end of intervention (week 14)

  5. hs-C Reactive Protein (CRP)

    10-week change from Baseline (week 4) in hs-CRP at 14 weeks (end of intervention).

    Measured: Baseline (week 4) and end of intervention (week 14)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jun 2017
  2. Study start14 Sep 2017
  3. Primary completion16 Nov 2018
  4. Study completion4 Dec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03201068
Sponsor's protocol ID
41697
Status last verified
Feb 2023
First submitted
23 Jun 2017
Last updated
24 Feb 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Wastyk HC, Perelman D, Topf M, Fragiadakis GK, Robinson JL, Sonnenburg JL, Gardner CD, Sonnenburg ED. Randomized controlled trial demonstrates response to a probiotic intervention for metabolic syndrome that may correspond to diet. Gut Microbes. 2023 Jan-Dec;15(1):2178794. doi: 10.1080/19490976.2023.2178794.

    PubMed 36803658

Questions about this trial

What is this clinical trial studying?

A study testing Probiotic supplement in people with Metabolic Syndrome and Microbiome, run by Stanford University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 16 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 24 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Metabolic syndrome parameters: Waist Circumference, Blood pressure, Triglycerides, HDL-cholesterol, and Fasting Glucose. (time frame: Baseline (week 4) and end of intervention (week 14)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03201068, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Feb 2023.

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