AzTrials
AzTrials

Streptococcal PneumoniaPhase 4NCT03838497

Immunogenicity and Safety of 13-valent Pneumococcal Conjugate Vaccine Among HIV-infected Adults

A Phase 4 study testing Prevenar13 in people with Streptococcal Pneumonia and HIV/AIDS, run by Korea University Guro Hospital.

Completed

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

Official record
Search all trials

Trial summary

HIV-infected patients are 30- to 100-fold more susceptible to invasive pneumococcal diseases. Pneumococcal vaccination is the best way to decrease the large pneumococcal disease burden, but the optimal timing of vaccination is still unclear. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Streptococcal Pneumonia, HIV/AIDS
What is being tested?
Prevenar13
Could I receive a placebo?
No, everyone receives an active treatment
How many people
70 participants
Where
No sites listed yet
Study dates
2 Apr 2015to 28 Feb 2017
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • HIV-infeted subjects who received antiretroviral therapy for ≥ 4 weeks

Who cannot join

  • a history of pneumococcal infection within the recent five years
  • previous pneumococcal vaccination
  • current opportunistic infections
  • known immunodeficiency other than HIV infection
  • coagulation disorders

About this study

Official title: Immunogenicity and Safety of 13-valent Pneumococcal Conjugate Vaccine Among HIV-infected Adults in the Era of Highly Active Antiretroviral Therapy: Analysis Stratified by CD4 T-cell Count

HIV-infected patients are 30- to 100-fold more susceptible to invasive pneumococcal diseases. Pneumococcal vaccination is the best way to decrease the large pneumococcal disease burden, but the optimal timing of vaccination is still unclear. HIV-infected subjects aged ≥ 18 years were recruited and divided into two age-matched groups: group 1 (subjects with CD4 T-cell counts ≥350 cells/µL) and group 2 (subjects with CD4 T-cell counts <350 cells/µL). Multiplex opsonophagocytic killing assay was used to compare immunogenicity after the immunization of 13-valent pneumococcal conjugate vaccine (PCV13).

Read the detailed description

This single-center, open-label non-randomized clinical trial was conducted at Korea University Guro Hospital from April 2015 to January 2017. Based on the CD4 T-cell counts at the time of study enrollment, HIV-infected subjects aged ≥ 18 years were divided into two groups, group 1 (subjects with CD4 T-cell counts ≥350 cells/µL) and group 2 (subjects with CD4 T-cell counts <350 cells/µL).

The primary objective of the study was to demonstrate that the immune responses to PCV13 serotypes in Group 2 (CD4 T-cell counts <350 cells/µL) were not inferior to those in Group 1 (CD4 T-cell counts ≥350 cells/µL) at one month after vaccination. In addition, the safety profiles of PCV13 were compared between two study groups.

HIV-infected subjects aged ≥ 18 years with stable underlying diseases (≥ 4 weeks on HAART) were eligible for this study. All available subjects with low CD4 T-cell counts (<350 cells/µL, group 2) were recruited, and age/visit day-matched controls with high CD4 T-cell counts (≥350 cells/µL, group 1) were enrolled. The exclusion criteria were as follows: 1) a history of pneumococcal infection within the recent five years, 2) previous pneumococcal vaccination, 3) current opportunistic infections, 4) known immunodeficiency other than HIV infection and 5) coagulation disorders.

The study was approved by the ethics committee of Korea University Guro Hospital (IRB No. 2014GR0014) and was conducted in accordance with the Declaration of Helsinki and Good Clinical Practice. Informed consent was taken for all participants before enrollment. Venous blood samples of 10 mL were collected on day 0 and post-vaccination day 28 ± 7.

Being tested
Prevenar13
Medical subject headings
Pneumonia, Acquired Immunodeficiency Syndrome

What participants receive

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

  • Prevenar13Biological

    Prevenar13 for both arms

Study groups in NCT03838497
Study groupRoleWhat they receive
HIV-infected subjects with CD4 T-cell counts <350 cells/µLActive comparatorIntervention to be administered: Prevenar13
Receives: Biological: Prevenar13
HIV-infected subjects with CD4 T-cell counts ≥350 cells/µLActive comparatorIntervention to be administered: Prevenar13
Receives: Biological: Prevenar13

What is being measured

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

  1. Opsonophagocytic assay (OPA) titers for PCV13

    OPA geometric mean titers for 13 PCV13 serotypes with corresponding 2-sided 95% confidence intervals between groups receiving PCV 13 and then compare the results

    Measured: Outcome measure will be assessed at two points (baseline and 28 ± 7 days after vaccination).

Secondary outcomes (1)
  1. Frequency and duration of local and systemic adverse events

    The safety profiles of co-administration of Fluad and PCV13 will be compared to those of single vaccination.

    Measured: All participants will be followed until 4 weeks after vaccination

Timeline

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

  1. First posted12 Feb 2019
  2. Study start2 Apr 2015
  3. Primary completion31 Jan 2017
  4. Study completion28 Feb 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 4
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
70 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03838497
Sponsor's protocol ID
2014GR0014
Status last verified
Feb 2019
First submitted
10 Feb 2019
Last updated
12 Feb 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Prevenar13 in people with Streptococcal Pneumonia and HIV/AIDS, run by Korea University Guro Hospital.

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 1 inclusion and 5 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 12 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Opsonophagocytic assay (OPA) titers for PCV13 (time frame: Outcome measure will be assessed at two points (baseline and 28 ± 7 days after 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 12 Feb 2019.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in