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NCT01870544 · ClinicalTrials.gov registry record · Phase 1

Does Weight Loss Surgery and Probiotic Supplementation Lead to a "Lean" Gut Microbiota?

A Phase 1 study, sponsored by Tufts Medical Center.

Completed
Registry status
Phase 1
Development phase
18
Enrollment target

NCT01870544: Completed Phase 1 study, sponsored by Tufts Medical Center.

NCT01870544 is a Phase 1 study that has completed, run by Tufts Medical Center. The registered enrollment target is 18 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (70% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT01870544, a Phase 1 study, has completed, sponsored by Tufts Medical Center.

COMPLETED
Registry status
Phase 1
Development phase
18 participants
Enrollment target

Study Summary

The purpose of the weight-loss study is to characterize the effect of LGG supplementation on the relative abundance of phyla in the gut microbiota of patients undergoing gastric bypass and sleeve gastrectomy surgery, and to elucidate a relationship between the gut microbiota pattern and the degree of weight-loss post-surgery. The investigators hypothesize that LGG administration will result in a "leaner" pattern of gut microbiota that will lead to higher weight loss at 3 months post-surgery.

Interventions

  • DIETARY_SUPPLEMENT Placebo
  • DIETARY_SUPPLEMENT Lactobacillus Rhamnosus GG

Trial Details

FieldValue
Enrollment Target 18 participants
Start Date 2013-09
Est. Completion 2016-01
Phase Phase 1
Tufts Medical Center

169 total trials

What the finished NCT01870544 record still lists

NCT01870544 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 18 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (70% lower).

The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.

NCT01870544 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT01870544 about?

NCT01870544 is a clinical study titled "Does Weight Loss Surgery and Probiotic Supplementation Lead to a "Lean" Gut Microbiota?". The purpose of the weight-loss study is to characterize the effect of LGG supplementation on the relative abundance of phyla in the gut microbiota of patients undergoing gastric bypass and sleeve gastrectomy surgery, and to elucidate a relationship between the gut microbiota pattern and the degree o...

What is the current status of trial NCT01870544?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 18 participants. The study started on 2013-09. Estimated completion is 2016-01.

What interventions are being tested in trial NCT01870544?

The interventions under investigation include: Placebo (DIETARY_SUPPLEMENT), Lactobacillus Rhamnosus GG (DIETARY_SUPPLEMENT).

Who is sponsoring clinical trial NCT01870544?

This trial is sponsored by Tufts Medical Center, which has 169 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT01870544's enrollment target sits among peer trials

18 1720th of 2000 higher than 216 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT01870544, the US trial registry maintained by the National Library of Medicine. NCT01870544 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.