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CompletedNCT06327919Updated Mar 25, 2024

Effects of Probiotic Supplementation With Weight Reducing Plan in Patients With Food Addiction and Weight Regain After Bariatric Surgery

An interventional study of Probiotic supplement and Placebo supplement in Weight Regain After Bariatric Surgery and Food Addiction, sponsored by National Nutrition and Food Technology Institute. Completed at 2 sites in Iran, Islamic Republic of. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2024-03-25.

Sponsored by National Nutrition and Food Technology Institute · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 9 months after the study started (first participant enrolled Jun 2022, registered Mar 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

To study the effects of probiotic supplementation with a weight loss program and cognitive behavioral therapy (CBT) on anthropometric measures, eating behavior, food addiction, and related hormone levels in patients with food addiction and weight regain after bariatric surgery, 50 patients who referred to obesity clinic with weight regain (regaining ≥10% nadir weight) after bariatric surgery (at least 18 months), and food addiction will be randomly allocated to receive a weight loss program and CBT plus either probiotic, or placebo for 12 weeks. At the first and the end of the intervention, anthropometric measurements, eating behavior, food addiction, leptin, serotonin, and oxytocin will be assessed and compared between groups.

02

Conditions studied

  • Weight Regain After Bariatric Surgery and Food Addiction
03

In context

Body Weight

1,224 studies on the registry are indexed under Body Weight; 132 are open to participants now.

This study's enrollment of 50 is below the median of 64 across 948 interventional studies indexed under Body Weight.

Browse Body Weight studies →

Lead sponsor

National Nutrition and Food Technology Institute is the lead sponsor of 62 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • BMI ≥25 kg/m2; willingness to participate in the study; not having diseases such as cancer, thyroid, diabetes, renal or liver (except fatty liver); non-pregnant or lactating or menopause or professional athlete; not use of any antibiotics in the last three weeks and any protein or probiotic supplement in the last month

Exclusion criteria

Exclusion Criteria:

  • taking antibiotic; using probiotic supplements/products or protein supplements; using weight-loss or appetite-suppressing medications; pregnancy; consuming less than 90% of the supplements prescribed during the study; following less than 90% of diet or physical activity for more than 10 days; participants who refuse to continue the study
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Intervention

    Probiotic supplementation with a weight loss program and ten one-hour online individual sessions cognitive behavioral therapy for 12 weeks. multi-strain probiotics were used in this study. Each probiotic capsule contains Lactobacillus acidophilus, Bifidobacterium bifidum, Bifidobacterium lactis, Bifidobacterium longum, Lactobacillus reuteri, Lactobacillus rhamnosus, magnesium stearate and maltodextrin. 1.8 × 109 CFU / capsule. 2 capsules per day, for 12 weeks.

    Dietary Supplement: Probiotic supplement

  • Placebo comparator
    Placebo

    Placebo supplementation with a weight loss program and ten one-hour online individual sessions cognitive behavioral therapy for 12 weeks. The placebo capsule contains 300 mg of starch. 2 capsules per day, for 12 weeks

    Other: Placebo supplement

Interventions

  • Dietary supplementProbiotic supplement

    multi-strain probiotics were used in this study. Each probiotic capsule contains Lactobacillus acidophilus, Bifidobacterium bifidum, Bifidobacterium lactis, Bifidobacterium longum, Lactobacillus reuteri, Lactobacillus rhamnosus, magnesium stearate and maltodextrin. 1.8 × 109 CFU / capsule. 2 capsules per day, for 12 weeks

  • OtherPlacebo supplement

    The placebo capsule contains 300 mg of starch. 2 capsules per day, for 12 weeks

06

What researchers measure

Primary outcomes

  1. Weight

    According to changes in body weight

    Time frame: 12 weeks

  2. BMI

    According to changes in BMI

    Time frame: 12 weeks

  3. Waist circumference

    According to changes in waist circumference

    Time frame: 12 weeks

  4. Fat mass

    According to changes in body fat mass

    Time frame: 12 weeks

  5. Food addiction

    According to changes in Score Of Yale Food Addiction Scale questionnaire

    Time frame: 12 weeks

Secondary outcomes

  1. Eating behavior

    According to changes in Score Of Three-Factor Eating Questionnaire

    Time frame: 12 weeks

  2. Leptin

    According to changes in serum level of leptin

    Time frame: 12 weeks

  3. Serotonin

    According to changes in serum level of serotonin

    Time frame: 12 weeks

  4. Oxytocin

    According to changes in serum level of oxytocin

    Time frame: 12 weeks

07

Study locations

2 sites
  • Azita Hekmatdoost
    Tehran, Middle East 19835, Iran, Islamic Republic of
  • National Nutrition and Food Technology Research Institute
    Tehran, Iran, Islamic Republic of
08

References and documents

Individual participant data

Plan to share: Yes — Individual participant data that underlie the results reported in this article, after deidentification will be shared.

Supporting information: Study protocol, Sap, Icf, Csr

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 25, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06327919
Lead sponsor
National Nutrition and Food Technology Institute
Responsible party
Dr Azita Hekmatdoost (Principal Investigator, National Nutrition and Food Technology Institute) — Principal investigator
First posted
Mar 25, 2024
Start date
Jun 1, 2022
Primary completion
May 25, 2023
Completion
Sep 23, 2023
Last update
Mar 25, 2024

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

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