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Pneumococcal InfectionsPhase 3NCT00508742

Study Evaluating the Impact of a 13-valent Pneumococcal Conjugate Vaccine on Nasopharyngeal Colonization

A Phase 3 study testing 13-valent Pneumococcal Conjugate Vaccine and 7 valent pneumococcal conjugate vaccine in people with Pneumococcal Infections, run by Pfizer at 5 sites in Israel.

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

This study is designed to assess the impact of 13-valent Pneumococcal Conjugate Vaccine (13vPnC) on nasopharyngeal colonization with Streptococcus pneumoniae in healthy infants. Read more about this study

Who is it for?
Ages 42 to 98 daysHealthy volunteers can take part
Conditions the study is for
Pneumococcal Infections
What is being tested?
13-valent Pneumococcal Conjugate Vaccine and 7 valent pneumococcal conjugate vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,866 participants
Where
5 sitesIsrael
Study dates
Dec 2007to Aug 2011
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 42 to 98 days
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Healthy infants aged 2 months (42-98 days) at time of enrolment.
  • Available for the entire study period and whose parent/legal guardian can be reached by telephone.

Who cannot join

  • Previous vaccination with licensed or investigational pneumococcal vaccine.
  • A previous anaphylactic reaction to any vaccine or vaccine-related component.
  • Contraindication to vaccination with a pneumococcal conjugate vaccine.

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

Israel5 sites
  • Pfizer Investigational Sites (7)

    Beersheba, Beer-Sheva, 84101

  • Pfizer Investigational Site

    Ksaife

  • Pfizer Investigational Site

    Rahat

  • Pfizer Investigational Site

    Rahat A

  • Pfizer Investigational Site

    Shaqib al-Salam, Segev Shalom

Other trials in Israel

About this study

Official title: A Phase 3, Randomized, Active-Controlled, Double-blind Trial Evaluating the Impact of a 13-valent Pneumococcal Conjugate Vaccine on Nasopharyngeal Colonization With Vaccine Serotypes of Streptococcus Pneumoniae in Healthy Infants in Israel.

This study is designed to assess the impact of 13-valent Pneumococcal Conjugate Vaccine (13vPnC) on nasopharyngeal colonization with Streptococcus pneumoniae in healthy infants.

Being tested
13-valent Pneumococcal Conjugate Vaccine, 7 valent pneumococcal conjugate vaccine
Keywords
Nasopharyngeal Colonization, Streptococcus pneumoniae, Healthy Infants, Vaccines, Pneumococcal Conjugate Vaccine
Medical subject headings
Pneumococcal Infections

What participants receive

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

  • 13-valent Pneumococcal Conjugate VaccineBiological

    Also called 13vPnC

    1 dose at 2, 4, 6 and 12 months of age

  • 7 valent pneumococcal conjugate vaccineBiological

    Also called 7vPnC

    1 dose at 2, 4, 6 and 12 months of age

Study groups in NCT00508742
Study groupRoleWhat they receive
1Experimental13 valent pneumococcal conjugate vaccine
Receives: Biological: 13-valent Pneumococcal Conjugate Vaccine
2Active comparator7 valent pneumococcal conjugate vaccine
Receives: Biological: 7 valent pneumococcal conjugate vaccine

What is being measured

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

  1. Percentage of Participants With a New Acquisition of Serotype 6A' (6A + 6C) or 19A Combined 1 Month After the Infant Series to 24 Months of Age

    A new acquisition was defined as the detection of a serotype (here 6A' [6A + 6C] or 19A), once a participant was fully vaccinated (one month after dose 3), that had not been detected previously in the baseline samples at 2, 4, 6 months of age.

    Measured: Month 7 through Month 24

Secondary outcomes (1)
  1. Percentage of Participants With Nasopharyngeal Cultures Testing Positive for 6A' (6A + 6C) or 19A Serotypes of Streptococcus Pneumoniae (S. Pneumoniae) at 7, 12, 13, 18 and 24 Months of Age

    Measured: Month 7, 12, 13, 18, 24

Timeline

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

  1. First posted30 Jul 2007 (estimated)
  2. Study startDec 2007
  3. Primary completionAug 2011
  4. Study completionAug 2011

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 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
1,866 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00508742
Sponsor's protocol ID
6096A1-3006
Other IDs
B1851007
Status last verified
May 2013
First submitted
26 Jul 2007
Last updated
10 May 2013
Data monitoring committee
No

Publications

  • Dagan R, Jiang Q, Juergens C, Trammel J, Gruber WC, Scott DA. Carrier-Induced Hyporesponsiveness to Pneumococcal Conjugate Vaccines: Unraveling the Influence of Serotypes, Timing, and Previous Vaccine Dose. Clin Infect Dis. 2021 Feb 1;72(3):448-454. doi: 10.1093/cid/ciaa083.

    PubMed 31995183
  • Dagan R, Juergens C, Trammel J, Patterson S, Greenberg D, Givon-Lavi N, Porat N, Gruber WC, Scott DA. PCV13-vaccinated children still carrying PCV13 additional serotypes show similar carriage density to a control group of PCV7-vaccinated children. Vaccine. 2017 Feb 7;35(6):945-950. doi: 10.1016/j.vaccine.2016.12.052. Epub 2017 Jan 11.

    PubMed 28087146
  • Dagan R, Juergens C, Trammel J, Patterson S, Greenberg D, Givon-Lavi N, Porat N, Gruber WC, Scott DA. Modeling pneumococcal nasopharyngeal acquisition as a function of anticapsular serum antibody concentrations after pneumococcal conjugate vaccine administration. Vaccine. 2016 Aug 5;34(36):4313-20. doi: 10.1016/j.vaccine.2016.06.075. Epub 2016 Jul 12.

    PubMed 27422342
  • Dagan R, Juergens C, Trammel J, Patterson S, Greenberg D, Givon-Lavi N, Porat N, Gurtman A, Gruber WC, Scott DA. Efficacy of 13-valent pneumococcal conjugate vaccine (PCV13) versus that of 7-valent PCV (PCV7) against nasopharyngeal colonization of antibiotic-nonsusceptible Streptococcus pneumoniae. J Infect Dis. 2015 Apr 1;211(7):1144-53. doi: 10.1093/infdis/jiu576. Epub 2014 Oct 29.

    PubMed 25355940
  • Dagan R, Patterson S, Juergens C, Greenberg D, Givon-Lavi N, Porat N, Gurtman A, Gruber WC, Scott DA. Comparative immunogenicity and efficacy of 13-valent and 7-valent pneumococcal conjugate vaccines in reducing nasopharyngeal colonization: a randomized double-blind trial. Clin Infect Dis. 2013 Oct;57(7):952-62. doi: 10.1093/cid/cit428. Epub 2013 Jun 26.

    PubMed 23804191

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing 13-valent Pneumococcal Conjugate Vaccine and 7 valent pneumococcal conjugate vaccine in people with Pneumococcal Infections, run by Pfizer at 5 sites in Israel.

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 2 inclusion and 3 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 10 May 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in Israel. 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. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Jul 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With a New Acquisition of Serotype 6A' (6A + 6C) or 19A Combined 1 Month After the Infant Series to 24 Months of Age (time frame: Month 7 through Month 24). 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 NCT00508742, which also lists 5 linked publications.

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 10 May 2013.

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