AzTrials
AzTrials

Infection in Solid Organ Transplant RecipientsNCT01527591

Pneumococcal Conjugate Vaccine 13 (Prevnar13®) in Children Who Are Solid Organ Transplant Recipients (SOT)

A study testing Pneumococcal Conjugate Vaccine 13 (PCV13) in people with Infection in Solid Organ Transplant Recipients, run by University of California, Los Angeles at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

The purpose of this study is to determine the safety and long-term immunogenicity of the 13-Valent Pneumococcal Conjugate vaccine in children who are solid organ transplant recipients. Read more about this study

Who is it for?
Ages 12 to 59 months
What is being tested?
Pneumococcal Conjugate Vaccine 13 (PCV13)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
17 participants
Where
1 siteUnited States
Study dates
1 Feb 2012to 30 Dec 2025
Phase
Interventional
Are there results?
Not yet: the study is under way

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 12 to 59 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Are 12 to 59 months of age.
  • Have received a solid organ transplantation requiring ongoing immunosuppression.
  • Have been receiving immunosuppressive agents for at least 3 months. Non-steroidal anti-inflammatory agents, G-CSF, erythropoietin and inhaled corticosteroids are not considered immunosuppressive agents for the purposes of this study.
  • Expect to be able to complete the study injection and follow-up.
  • Have parent or guardian's consent.
  • Have received at least 3 doses of an approved PCV7 and/or PCV13 vaccine series.

Who cannot join

  • Have received any inactivated vaccine within 4 weeks, or any live vaccine within 6 weeks of entering the study.
  • Have had an allergic reaction or a serious side effect after receipt of any previous immunization to pneumococcal vaccines, or to other routine childhood immunizations.
  • Have any other condition that would make receiving study vaccine inadvisable.
  • Have other diseases of the immune system.
  • Have any other disease or previous surgery that would interfere with study treatment.
  • Are likely to have bleeding disorders.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA

    Los Angeles, California, 90095-1752

Other trials in United States

About this study

Official title: Safety And Long-Term Immunogenicity Of The 13-Valent Pneumococcal Conjugate Vaccine In Children Who Are Solid Organ Transplant Recipients

The purpose of this study is to determine the safety and long-term immunogenicity of the 13-Valent Pneumococcal Conjugate vaccine in children who are solid organ transplant recipients.

Read the detailed description

The purpose of this study is to determine if a booster dose of 13-valent pneumococcal conjugate vaccine (PCV13) is safe and results in a measurable and durable immunologic response against pneumococcal subtypes present in the vaccine in solid organ transplant recipient (SOT) children.

Pneumococcal infections are amongst the most common infections seen in immunocompromised children. Infection by Streptococcus pneumoniae is one of the most frequently observed infection in immunocompromised children.

Pneumococcal polysaccharide vaccines (PPV) have been licensed in the U.S. for over 40 years. In contrast, pneumococcal conjugate vaccines are immunogenic and efficacious in normal infants and children, and offer hope of reducing pneumococcal infections in immunocompromised children. However, conjugate pneumococcal vaccine can only protect against a limited number of the 90 pneumococcal serotypes.

It is reasonable to anticipate that the introduction of PCV13 may help reduce the chances of severely immunocompromised children getting pneumococcal infections. Many of these children have been previously immunized with a full series of a 7-valent pneumococcal conjugate vaccine. These children will benefit from an additional dose of the new 13-valent vaccine. The degree to which SOT-recipient children are protected by prior immunizations and are responsive to new immunizations is still largely undefined. This study aims to expand the knowledge regarding the safety and immunogenicity of PCV13 immunization in this growing and vulnerable population.

Being tested
Pneumococcal Conjugate Vaccine 13 (PCV13)

What participants receive

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

  • Pneumococcal Conjugate Vaccine 13 (PCV13)Biological

    Also called Prevnar13®

    A single intramuscular dose of 0.5 mL.

Study groups in NCT01527591
Study groupRoleWhat they receive
vaccineOtherpneumococcal conjugated vaccine
Receives: Biological: Pneumococcal Conjugate Vaccine 13 (PCV13)

What is being measured

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

  1. To measure antibody concentrations by EIA and opsonophagocytosis assay (OPA)

    Immunogenicity, functional antibody responses and sero-conversion will be evaluated by enzyme immunoassay (EIA) and opsonophagocytosis assay to a booster immunization with PCV13 vaccine in SOT-recipient children 12-59 months of age

    Measured: Measured at different time points until 240 weeks post PCV 13 booster dose

Secondary outcomes (1)
  1. To measure the extent and persistence of immunity by measuring antibody concentrations by EIA and OPA

    To measure the magnitude and persistence of humoral (EIA and OPA) anti--pneumococcal immune responses in children with SOT who were immunized with a booster dose of PCV 13 between 12 and 59 months of age

    Measured: Measured at different time points until 240 weeks post PCV 13 booster dose

Timeline

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

  1. First posted7 Feb 2012 (estimated)
  2. Study start1 Feb 2012
  3. Primary completion31 Dec 2023
  4. Study completion30 Dec 2025 (estimated)

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
17 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01527591
Sponsor's protocol ID
Pfizer-Prevnar13®
Status last verified
Jan 2025
First submitted
21 Dec 2011
Last updated
2 Apr 2025
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Pneumococcal Conjugate Vaccine 13 (PCV13) in people with Infection in Solid Organ Transplant Recipients, run by University of California, Los Angeles at 1 site in United States.

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 6 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: under way, not looking for participants, as of the sponsor's last update on 2 Apr 2025. 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 United States. 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

To measure antibody concentrations by EIA and opsonophagocytosis assay (OPA) (time frame: Measured at different time points until 240 weeks post PCV 13 booster dose). 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 2 Apr 2025.

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