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Rotavirus InfectionsRota-biomeNCT02538211

The Role of the Intestinal Microbiome in Enteric and Systemic Vaccine Immune Responses

A study testing Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine in people with Rotavirus Infections and Intestinal Bacteria Flora Disturbance, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate if the intestinal microbiota influences rotavirus vaccine immune responses in healthy adult volunteers. Read more about this study

Who is it for?
Ages 18 to 35 years, men onlyHealthy volunteers can take part
What is being tested?
Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
63 participants
Where
1 siteNetherlands
Study dates
Sep 2015to Feb 2017
Phase
Interventional
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 to 35 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy, as determined by a responsible physician, based on a medical evaluation including medical history, physical examination and laboratory tests carried out within 28 days prior to starting antibiotics (day -98). A subject with a clinical abnormality or laboratory parameter outside the reference range may be included if the investigator agrees that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures
  • Male between 18 and 35 years of age, inclusive at the time of signing the informed consent
  • Capable of giving written informed consent and able to comply with the requirements and restrictions listed in the informed consent form
  • Normal defecation pattern (defined as ≤3x/ day and ≥3x/week)

Who cannot join

  • Subject has had a major illness in the past 3 months or any significant chronic medical illness that the investigator would deem unfavorable for enrollment, including inflammatory diseases.
  • Subject with any history of immunodeficiency
  • Subjects with a history of any type of malignancy
  • Subject with a history of thrombocytopenia or bleeding disorder
  • Subject has a past or current gastrointestinal disease which may influence the gut microbiota
  • Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones)
  • History of alcoholism and/or drinking more than an average of 5 units of alcohol per day
  • The subject has received an investigational product within three months of day 0 of the current study

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Academic Medical Center

    Amsterdam, North Holland, 1105 AZ

Other trials in Netherlands

About this study

The purpose of this study is to evaluate if the intestinal microbiota influences rotavirus vaccine immune responses in healthy adult volunteers.

Read the detailed description

This study will alter the intestinal microbiota in healthy adults using antibiotics and subsequently measure immune reactions to the rotavirus vaccine (Rotarix), the tetanus vaccine and the pneumococcal vaccine (Pneumo23).

Being tested
Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Medical subject headings
Rotavirus Infections, Tetanus, Pneumonia

What participants receive

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

  • Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccineBiological

    Also called RotarixTM, Pneumo 23

    All subjects will be given an oral dose of the rotavirus vaccine, RotarixTM, and intramuscular injections of the Tetanus vaccine and Pneumococcal vaccine, Pneumo 23.

Study groups in NCT02538211
Study groupRoleWhat they receive
ControlPlacebo comparatorControl group - subjects will receive no antibiotics followed by Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Receives: Biological: Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Broad-spectrum antibioticsActive comparatorSubjects will receive 7 days of pre-treatment (days -9 to -3) with: * Ciprofloxacin 500mg 2dd1 * Vancomycin 250mg 3dd2 * Metronidazole 500mg 3dd1 followed by Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Receives: Biological: Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Narrow-spectrum antibioticsActive comparatorSubjects will receive 7 days of pre-treatment (days -9 to -3) with: • Vancomycine 250mg 3dd2 followed by Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine
Receives: Biological: Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine

What is being measured

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

  1. Height of serum anti-rotavirus Immunoglobulin A (IgA) response

    Geometric Mean Concentration (GMC)

    Measured: 28 days post-vaccination

Secondary outcomes (6)
  1. Time to positivity for serum anti-rotavirus Immunoglobulin A (IgA) and G (IgG) response

    (days)

    Measured: day 0 through day 28 post vaccination

  2. Change in pre and post-vaccination anti-rotavirus (anti-RV) serum neutralizing antibodies measured by Geometric Mean Concentration (GMC)

    Measured: 28 days post-vaccination

  3. Change in pre and post-vaccination anti-RV serum IgG response measured by Geometric Mean Concentration (GMC)

    Measured: day 0 through day 28 post vaccination

  4. Change in serum tetanus toxoid IgG response, measured as pre and post vaccination titer (international units/mL) ratio

    Measured: day 0 through day 28 post vaccination

  5. Change in serum pneumococcal poly-saccharide-specific IgG for all vaccine strains , measure in pre and post vaccination titer (micrograms/mL) ratio

    Measured: day 0 through day 28 post vaccination

  6. Composition of the fecal micro biome before and after antibiotics and between groups measured by the HITChip and bacterial 16S rRNA sequencing

    Measured: day -9 and day 0 pre vaccination

Timeline

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

  1. First posted2 Sep 2015 (estimated)
  2. Study startSep 2015
  3. Primary completionJan 2017
  4. Study completionFeb 2017

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 N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
63 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02538211
Sponsor's protocol ID
NL 52510.018.15
Acronym
Rota-biome
Status last verified
Jul 2017
First submitted
27 Aug 2015
Last updated
25 Jul 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Rotavirus vaccine, Tetanus vaccine and Pneumococcal vaccine in people with Rotavirus Infections and Intestinal Bacteria Flora Disturbance, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

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 4 inclusion and 8 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: finished, as of the sponsor's last update on 25 Jul 2017. 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 Netherlands. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Height of serum anti-rotavirus Immunoglobulin A (IgA) response (time frame: 28 days post-vaccination). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 Jul 2017.

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Rota-biome Clinical Trial NCT02538211 | AzTrials