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Pneumococcal VaccinePhase 2/3VPTIINCT03098628

Trial of Simplified Pneumococcal Vaccination in Vietnam II

A Phase 2/3 study testing PCV Vaccine in people with Pneumococcal Vaccine, run by Murdoch Childrens Research Institute at 1 site in Vietnam.

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 is a single-blind, open-label, randomised controlled trial with five groups. There are four different Pneumococcal Conjugate Vaccine (PCV) schedules to be evaluated. Read more about this study

Who is it for?
Ages 8 to 10 weeksHealthy volunteers can take part
Conditions the study is for
Pneumococcal Vaccine
What is being tested?
PCV Vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2,501 participants
Where
1 siteVietnam
Study dates
8 Mar 2017to 11 Jun 2020
Phase
Phase 2/3
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 8 to 10 weeks
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Aged between 2 months and 2 months plus 2 weeks;
  • No significant maternal or perinatal history;
  • Born at or after 36 weeks gestation;
  • Written and signed informed consent from parent/legal guardian;
  • Lives within approximately 30 minutes of the commune health centre;
  • Family anticipates living in the study area for the next 22 months

Who cannot join

  • Known allergy to any component of the vaccine;
  • Allergic reaction or anaphylactic reaction to any previous vaccine;
  • Known immunodeficiency disorder;
  • Known HIV-infected mother;
  • Known thrombocytopenia or coagulation disorder;
  • Administration or planned administration of any immunoglobulin or blood product since birth;
Show all 17Show fewer
  • Severe birth defect requiring ongoing medical care;
  • Chronic or progressive disease;
  • Seizure disorder;
  • History of severe illness;
  • Receipt of any 2 month vaccines through the Expanded Programme of Immunization (EPI) program;
  • Family plans on giving the infant Quinvaxem (DTP-Hib-HBV).
  • Additionally, enrolment will be deferred and infants asked to return to the health centre one week later for reassessment if they have at least one of the following deferral criteria:
  • Axillary temperature ≥37.5°C or ≤35.5°C;
  • Acute infection, especially bacterial;
  • Oral administration of corticoid therapy in past 14 days; or
  • Any of the following symptoms that interfere with normal activities: crying more than usual, sleeping more than usual, or loss of appetite.

Trial locations and contacts

1 site in 1 country.

Vietnam1 site
  • Pasteur Institute

    Ho Chi Minh City

Other trials in Vietnam

About this study

Official title: Trial of Simplified Pneumococcal Vaccination in Vietnam II: The Herd Immunity Approach

This is a single-blind, open-label, randomised controlled trial with five groups. There are four different Pneumococcal Conjugate Vaccine (PCV) schedules to be evaluated.

Read the detailed description

This is a single-blind, open-label, randomised controlled trial with five groups. There are four different PCV schedules to be evaluated: a 0+1 schedule of PCV10 at 12 months of age (Group V), a 0+1 schedule of PCV13 at 12 months of age (Group W), a 1+1 schedule of PCV10 at 2 and 12 months of age (Group X), and a 1+1 schedule of PCV13 at 2 and 12 months of age (Group Y); along with a control group that receives a dose of PCV10 at 24 months of age (Group Z). Additionally, all participants will receive four doses of Infanrix-hexa at 2, 3, 4 and 18 months of age.

Being tested
PCV Vaccine

What participants receive

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

  • PCV VaccineBiological

    PCV vaccination

Study groups in NCT03098628
Study groupRoleWhat they receive
V - PCV10 vaccine, 0+1Active comparatorPCV10, 0+1 schedule. PCV vaccine at 12 months of age
Receives: Biological: PCV Vaccine
W - PCV13 vaccine, 0+1Active comparatorPCV13 in 0+1 schedule. PCV vaccine at 12 months of age
Receives: Biological: PCV Vaccine
X - PCV10 vaccine, 1+1Active comparatorPCV10, 1+1 schedule. PCV vaccine given at 2 and 12 months of age
Receives: Biological: PCV Vaccine
Y - PCV13 vaccine, 1+1Active comparatorPCV13, 1+1 schedule. PCV vaccine at 2 and 12 months of age
Receives: Biological: PCV Vaccine
Z - ControlOtherControl group. PCV vaccine given at end of study (24 months)
Receives: Biological: PCV Vaccine

What is being measured

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

  1. Carriage of Vaccine Type pneumococci

    Evaluate the effect of a 0+1 PCV schedule administered at 12 months of age on Nasopharngeal Carrige (NP) carriage during the first two years of life, comparing a) PCV10-vaccinated and b) PCV13-vaccinated participants with unvaccinated controls

    Measured: 12 months post vaccination, i.e. 24 months of age

  2. Carriage of Vaccine Type pneumococci

    Evaluate the effect of a 1+1 PCV schedule administered at 2 and 12 months of age on NP carriage during the first two years of life, comparing a) PCV10-vaccinated and b) PCV13-vaccinated participants with unvaccinated controls.

    Measured: 12 months post last vaccination, i.e. 24 months of age

Secondary outcomes (2)
  1. Immunology sub-study

    1. To evaluate the immune responses to a 0+1 PCV schedule at 12 months of age, comparing a) PCV10-vaccinated and b) PCV13-vaccinated participants with unvaccinated controls;

    Measured: 12 months post vaccination, i.e. 24 months of age

  2. Immunology sub-study

    ii) To evaluate the immune responses to a 1+1 PCV schedule at 2 and 12 months of age, comparing a) PCV10-vaccinated and b) PCV13-vaccinated participants with unvaccinated controls;

    Measured: 12 months post last vaccination, i.e. 24 months of age

Timeline

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

  1. First posted4 Apr 2017
  2. Study start8 Mar 2017
  3. Primary completion11 Jun 2020
  4. Study completion11 Jun 2020

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 2/3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Model description
single-blind, open-label, randomised controlled trial
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
2,501 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03098628
Sponsor's protocol ID
HREC36027
Acronym
VPTII
Status last verified
Aug 2023
First submitted
1 Mar 2017
Last updated
27 Nov 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Temple B, Tran HP, Dai VTT, Smith-Vaughan H; VPT-II Collaborator Group; Licciardi PV, Satzke C, Nguyen TV, Mulholland K. Efficacy against pneumococcal carriage and the immunogenicity of reduced-dose (0 + 1 and 1 + 1) PCV10 and PCV13 schedules in Ho Chi Minh City, Viet Nam: a parallel, single-blind, randomised controlled trial. Lancet Infect Dis. 2023 Aug;23(8):933-944. doi: 10.1016/S1473-3099(23)00061-0. Epub 2023 Apr 14.

    PubMed 37062304
  • Temple B, Tran HP, Dai VTT, Bright K, Uyen DY, Balloch A, Licciardi P, Nguyen CD, Satzke C, Smith-Vaughan H, Nguyen TV, Mulholland K. Simplified 0+1 and 1+1 pneumococcal vaccine schedules in Ho Chi Minh City, Vietnam: protocol for a randomised controlled trial. BMJ Open. 2021 Nov 29;11(11):e056505. doi: 10.1136/bmjopen-2021-056505.

    PubMed 34845082

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing PCV Vaccine in people with Pneumococcal Vaccine, run by Murdoch Childrens Research Institute at 1 site in Vietnam.

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 6 inclusion and 17 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 27 Nov 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 Vietnam. 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 combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

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?

Carriage of Vaccine Type pneumococci (time frame: 12 months post vaccination, i.e. 24 months of age). The study lists 2 primary outcomes in all. 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 NCT03098628, which also lists 2 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 27 Nov 2024.

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