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Study to Evaluate the Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Elderly Subjects

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01274598
Recruitment Status : Completed
First Posted : January 11, 2011
Last Update Posted : January 11, 2017
Information provided by (Responsible Party):
Patricia L. Hibberd, Massachusetts General Hospital

Brief Summary:

This is a phase I, open label clinical trial to evaluate the safety of Lactobacillus rhamnosus GG (LGG) in elderly subjects. Lactobacilli are part of the normal flora of the intestine. LGG is one of several strains of Lactobacilli that is used as a probiotic or microorganism administered to confer "health benefits". Our research is focused on studying the possible therapeutic effects of LGG. The study hypotheses are:

  • LGG administered twice daily will be safe and well tolerated in elderly subjects
  • LGG will colonize the stool of elderly subjects and will modify the diversity and richness of the microbiota in their nasopharyngeal and stool specimens

Condition or disease Intervention/treatment Phase
Healthy Elderly Biological: Lactobacillus Rhamnosus GG, ATCC 53103 (LGG) Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 15 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Official Title: Open Label Study to Evaluate the Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Elderly Subjects
Study Start Date : December 2010
Actual Primary Completion Date : August 2011
Actual Study Completion Date : August 2011

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Lactobacillus Rhamnosus GG, ATCC 53103 (LGG)
Lactobacillus rhamnosus GG ATCC 53103 1 x 10^10 twice a day for 28 days
Biological: Lactobacillus Rhamnosus GG, ATCC 53103 (LGG)
1x10^10 CFU by mouth twice daily for 28 days
Other Name: Culturelle

Primary Outcome Measures :
  1. Occurrence of adverse events that are possibly or probably related to administration of LGG [ Time Frame: through day 56 ]
    Adverse events will be detected during study visits with standardized questionnaires, medical history, vital signs, physical examinations, laboratory tests and review of subject diaries as well as between study visits on telephone calls based on responses to adverse event questionnaires.

Secondary Outcome Measures :
  1. Changes in the richness and bacterial diversity of the nasopharyngeal and gut microbiota and presence of LGG in stool specimens by routine culture [ Time Frame: through day 56 ]
    We will analyze the stool and nasopharyngeal samples to learn what bacteria are present during different phases of the study and how the types and quantities of bacteria may change over time.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   65 Years to 80 Years   (Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Age 65-80 years
  2. Willing to complete the informed consent process
  3. Able and willing to participate for the planned duration of the study, including availability for follow-up telephone contact
  4. Willing to comply with protocol and report on compliance and side effects during the study period
  5. Informed consent obtained and signed prior to screening

Exclusion Criteria:

  1. Consumption of supplements or food products containing LGG or probiotics for 28 days prior to the start of the study or consumption of yogurt that has the "live and active cultures" seal.
  2. Known or suspected allergies to probiotics, Lactobacillus, microcrystalline cellulose, gelatin, or antibiotics that may be used to treat LGG bacteremia or infection (i.e., subject able to tolerate at least 2 of the following regimens - Ampicillin or other beta lactam antibiotic, and Clindamycin, and Moxifloxacin).
  3. Received oral or parenteral antibiotics within 4 weeks of enrollment or prescribed antibiotics on the day of enrollment
  4. Drug or alcohol abuse within the previous 12 months
  5. Hospitalization, major surgery or endoscopy within the last 3 months
  6. Scheduled hospital admission within 3 months of enrollment
  7. Resident of a nursing home or rehabilitation center
  8. Presence of any of the following:

    • Grade 2 or higher abnormal vital signs or abnormalities on physical exam
    • Indwelling catheter or implanted hardware/prosthetic device or feeding tube
    • Active bowel leak, acute abdomen, colitis, or active GI disease or history of gastric or intestinal dysmotility, slowed transit time, variable small intestinal permeability, pancreatitis, history of gastrointestinal tract cancer or inflammatory bowel disease
    • History of Hepatitis B or Hepatitis C infections, cirrhosis, or chronic liver disease
    • Underlying structural heart disease such as abnormal native heart valve or congenital abnormality, previous history of endocarditis or valve replacement, Stage IV congestive heart failure
    • History of peripheral vascular disease or stroke
    • Immunosuppression including HIV positive, solid organ or stem cell transplant recipient, receiving any oral or parenteral immunosuppressive therapy, neutrophil count <500/mm3, or an anticipated drop in the neutrophil count to <500/mm3 or active or planned chemotherapy or radiotherapy
    • History of collagen vascular or autoimmune disease
    • End stage renal disease
    • History of chronic obstructive pulmonary disease or asthma
    • Diabetes or thyroid disease
    • Active TB
  9. Positive drug or alcohol testing at screening or positive breathalyzer at baseline or an unwillingness to undergo drug and alcohol testing
  10. Abnormal laboratory tests defined as any of the following:

    • White blood cell (WBC) < 3.3 or > 12.0 K/µL
    • Platelets < 125 K/µL
    • Hemoglobin Males: < 12.0 g/dL; Females: < 11.0 g/dL
    • Creatinine > 1.8 mg/dL
    • Blood urea nitrogen (BUN) >27 mg/dL
    • Aspartate aminotransferase (AST) > 1.25 ULN
    • Alanine aminotransferase (ALT) > 1.25 ULN
    • Alkaline phosphatase > 2.0 ULN
    • Bilirubin (total) > 1.5 ULN
    • Glucose (non-fasting ) >126 mg/dL
    • Positive HIV, Hepatitis B surface antigen or Hepatitis C antibody
  11. Any other condition that in the opinion of the investigator would jeopardize the safety or rights of the subject participating in the study or would make it unlikely the subject could complete the study

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01274598

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United States, Massachusetts
Massachusetts General Hospital
Boston, Massachusetts, United States, 02114
Sponsors and Collaborators
Massachusetts General Hospital
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Principal Investigator: Patricia L Hibberd, MD, PhD Massachusetts General Hospital
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Patricia L. Hibberd, Chief, Division of Global Health; Department of Pediatrics, Massachusetts General Hospital Identifier: NCT01274598    
Other Study ID Numbers: U01AT002952-01A2 ( U.S. NIH Grant/Contract )
First Posted: January 11, 2011    Key Record Dates
Last Update Posted: January 11, 2017
Last Verified: January 2017
Keywords provided by Patricia L. Hibberd, Massachusetts General Hospital: