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Vancomycin Resistant Enterococcal ColonizationPhase 1VRENCT00756262

Probiotic Lactobacillus GG to Eliminate VRE Colonization

A Phase 1 study testing Lactobacillus GG or Culturelle in people with Vancomycin Resistant Enterococcal Colonization, run by Tufts Medical Center at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The use of LGG will be associated with elimination of VRE colonization. The primary comparison will be VRE elimination rates among those patients that receive LGG compared to those that receive placebo. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Lactobacillus GG or Culturelle
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
11 participants
Where
1 siteUnited States
Study dates
Mar 2003to Jul 2012
Phase
Phase 1
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age greater than or equal to 18 years
  • Identified as having had a clinical isolate or stool or rectal swab culture positive for VRE
  • Able to give informed consent and report on side effects
  • Tolerating an oral/enteral diet
  • Stable comorbid conditions
  • Willing and able to come to Tufts for weekly visits
  • Outpatient

Who cannot join

  • Inpatients
  • Active infection with VRE being treated
  • Pregnancy
  • Known use of LGG or another probiotic (not including yogurt) within the previous 30 days
  • Presence of an active bowel leak, acute abdomen, active intestinal disease, or significant bowel dysfunction
  • Presence of an absolute neutrophil count less than 500 per cubic mm or anticipation post chemotherapy that the absolute neutrophil count will fall below 500 per cubic mm
Show all 19Show fewer
  • History of adverse reaction to product containing lactobacillus
  • Active colitis (see definition below)
  • Treatment with an antibiotic with activity against VRE
  • Life expectancy less than one year or life-threatening condition
  • Known or suspected allergies to probiotics, lactobacillus, milk protein, and microcrystalline cellulose
  • Structural heart disease, history of endocarditis or valve replacement
  • Positive baseline stool culture for LGG
  • Recent or planned chemotherapy or radiation therapy
  • Solid organ transplant within the prior year
  • Stem cell transplant within the prior year
  • On active immunosuppressive medication [anti-rejection, injectable immunosuppressive drugs for autoimmune disease, or corticosteroids (greater than 1/2 mg per kg body weight of prednisone or its equivalent) not including inhaled or topical steroids]
  • Allergy or intolerance to or contraindication to two or more of the rescue antibiotic regimens (ampicillin, clindamycin, moxifloxacin)
  • Colitis will be defined as a history of Crohn's disease or ulcerative colitis with active diarrhea, active diarrhea due to Clostridium difficile infection, active diarrhea due to known or unknown cause with a stool specimen showing fecal leukocytes (if none has been done in such a patient this will be requested prior to enrollment). Diarrhea will be defined as more than three unformed bowel movements per day. The subject's primary physician will be asked to assess the subject's life expectancy, and subjects with an estimated life expectancy of less than one year as judged by the physician who knows him or her best will be excluded.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Tufts Medical Center-Division of Geographic Medicine and Infectious Diseases

    Boston, Massachusetts, 02111

Other trials in United States

About this study

The use of LGG will be associated with elimination of VRE colonization.

The primary comparison will be VRE elimination rates among those patients that receive LGG compared to those that receive placebo. The primary endpoint will be the proportion of patients with VRE at one week after cessation of administration of study medication or placebo. The investigators assume that the placebo group will have very little spontaneous elimination of VRE and that the LGG group will be more likely to have eliminated VRE colonization at the end of one week.

Being tested
Lactobacillus GG or Culturelle
Keywords
Vancomycin Resistant enterococcal colonization, Probiotics, LGG, Lactobacillus rhamnosus

What participants receive

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

  • Lactobacillus GG or CulturelleBiological

    Also called Lactobacillus GG (LGG), Placebo is microcrystalline cellulose

    Drug to be administered orally (capsule form). Dose=2 capsules/day for 14 days. Dosage strength= 1x10^10 bacteria

Study groups in NCT00756262
Study groupRoleWhat they receive
1Active comparatorLactobacillus rhamnosus LGG
Receives: Biological: Lactobacillus GG or Culturelle
2Placebo comparatorMicrocrystalline cellulose capsules
Receives: Biological: Lactobacillus GG or Culturelle

What is being measured

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

  1. The primary endpoint will be the proportion of patients with VRE at one week after cessation of administration of study medication or placebo.

    Measured: Day 21post enrollment

Secondary outcomes (4)
  1. The rate of VRE colonization in LGG recipients versus controls at 2 weeks and 6 weeks post discontinuation of administration of LGG or placebo.

    Measured: 2 weeks, and 6 weeks

  2. The rate of LGG colonization in study population receiving LGG compared to placebo.

    Measured: days 21, 28, 56

  3. That LGG can be used safely and without significant side effects in both hospitalized and ambulatory patients.

    Measured: day 0-56 and 6 mnths

  4. That among those treated with LGG, the colony counts of VRE will be lower when compared to controls even among those in whom colonization is not eliminated.

    Measured: day 0,7,14,21,28,56

Timeline

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

  1. First posted22 Sep 2008 (estimated)
  2. Study startMar 2003
  3. Primary completionJul 2012
  4. Study completionJul 2012

Why it stopped: Insufficient recruitment, no additional funding available

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00756262
Sponsor's protocol ID
6283
Other IDs
5 R 21 AT-001892
Acronym
VRE
Status last verified
Jan 2024
First submitted
19 Sep 2008
Last updated
5 Jan 2024
Results posted
No
Data monitoring committee
Yes

Publications

  • Doron S, Hibberd PL, Goldin B, Thorpe C, McDermott L, Snydman DR. Effect of Lactobacillus rhamnosus GG Administration on Vancomycin-Resistant Enterococcus Colonization in Adults with Comorbidities. Antimicrob Agents Chemother. 2015 Aug;59(8):4593-9. doi: 10.1128/AAC.00300-15. Epub 2015 May 26.

    PubMed 26014940

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Lactobacillus GG or Culturelle in people with Vancomycin Resistant Enterococcal Colonization, run by Tufts Medical Center 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 7 inclusion and 19 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: stopped early, as of the sponsor's last update on 5 Jan 2024. 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Insufficient recruitment, no additional funding available). Results are not available in the source record.

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?

The primary endpoint will be the proportion of patients with VRE at one week after cessation of administration of study medication or placebo. (time frame: Day 21post enrollment). 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 NCT00756262, 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 5 Jan 2024.

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