A Phase 1 interventional study of Synbiotic AKSB in Influenza, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to participants aged 65 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-06-20.
Sponsored by Mayo Clinic · Phase 1 and Interventional
Probiotics are viable commensal microorganisms that promote the establishment of beneficial microflora. Animal and human studies demonstrate that probiotics can enhance body's immune response to stimuli. Mayo Clinic in conjunction with Agri-King Corporation has developed a novel synbiotic called AKSB (Agri-King Synbiotic) that contains a probiotic bacterium (Enterococcus faecium, microencapsulated SF68 or Ventrux ME 30), a probiotic yeast (Saccharomyces cerevisiae, Lynside® Pro-Lay 1), and a prebiotic (fructo-oligosaccharide [FOS], NutraFlora®). This phase I placebo-controlled trial of AKSB in normal human volunteers, over 65 years of age, is designed to study the safety of this probiotic when patients are also receiving an influenza vaccine. If this study shows that AKSB is safe then our aim is to do a larger study to see if we can improve influenza vaccine immune response while taking the probiotic compared to placebo.
2,264 studies on the registry are indexed under Influenza, Human; 173 are open to participants now.
This study's enrollment of 22 is below the median of 240 across 1,894 interventional studies indexed under Influenza, Human.
Browse Influenza, Human studies →Mayo Clinic is the lead sponsor of 3,263 studies on the registry; 670 are open to participants now.
Of its 450 completed or terminated interventional studies of FDA-regulated products, 318 (71%) have results posted.
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Exclusion Criteria:
Participants (healthy \> 65 year old persons) will be randomized to take the synbiotic AKSB. All participants will also receive inactivated trivalent Influenza vaccine while being on the AKSB. We will assess safety of the AKSB in this setting. We will also assess the stool microbiology in relation to vancomycin-resistant enterococcus and probiotic strain enterococcus. We will also assess influenza vaccine response in patients on AKSB
Biological: Synbiotic AKSB
Participants (healthy \> 65 year old persons) will be randomized to take the placebo. All participants will also receive inactivated trivalent Influenza vaccine while being on the placebo. We will also assess the stool microbiology in relation to vancomycin-resistant enterococcus. We will also assess influenza vaccine response in patients on placebo.
Biological: Synbiotic AKSB
AKSB is a novel synbiotic that contains a probiotic bacterium (Enterococcus faecium, microencapsulated SF68 or Ventrux ME 30), a probiotic yeast (Saccharomyces cerevisiae, Lynside® Pro-Lay 1), and a prebiotic (fructo-oligosaccharide \[FOS\], NutraFlora®).
number of patients with adverse events
To evaluate the safety and tolerability of AKSB when administered with the influenza vaccine as compared to the influenza vaccine alone with placebo in patients ≥65 years of age.
Time frame: 127 days
Compare stool presence of probiotic enterococcal strain
To evaluate for stool VRE presence pre-post intervention and to compare molecular fingerprinting of VRE isolated with the SF68 strain of enterococci used in the study drug to demonstrate safety of the study drug.
Time frame: baseline to 21 days
Immune response to Influenza A vaccine in the AKSB arm compare to Placebo
To determine whether AKSB can increase the protection rate \[PR, (number of participants that achieve the protective antibody titer)\] by 20% in the AKSB arm at days 14, 28 days and 120 days after vaccination among the elderly patients (≥ 65 years of age). Effect of age (65-75 years and \>75 years), gender, underlying medical history and previous vaccination status (within the last 2 years) will evaluated.
Time frame: days 14, 28 days and 120 days after vaccination
This study is completed, as verified in Jun 2012. You cannot join it, but the record below documents what was studied.
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