Skip to content

A Study to Evaluate Pneumococcal Polysaccharide Vaccine Effectiveness in Children With Type 1 Diabetes

Vaccine Effectiveness and Seroconversion to 23 Valent Pneumococcal Polysaccharide Vaccination in Children With Type 1 Diabetes

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04481243
Enrollment
29
Registered
2020-07-22
Start date
2021-04-30
Completion date
2023-01-20
Last updated
2023-11-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 1 Diabetes

Brief summary

The purpose of this study is to determine if children with type 1 diabetes have adequate immune response to PPSV23 vaccination and to assess factors affecting immune response.

Interventions

BIOLOGICALPneumovax 23- pneumococcal polysaccharide

PPSV23 is a vaccine to help protect against serious infection due to the Streptococcus pneumoniae bacteria. One dose administered intramuscularly or subcutaneously.

PROCEDUREBlood draw

6 ml blood draw at baseline and 6 months post immunization

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Will study immunological response to vaccination

Eligibility

Sex/Gender
ALL
Age
3 Years to 18 Years
Healthy volunteers
No

Inclusion criteria

* Children ages 3-18 years old. * Clinical diagnosis of Type 1 diabetes.

Exclusion criteria

* Newly diagnosed with Type 1 diabetes with in the past month of study date. * Contraindications to receiving 23 valent pneumococcal vaccines. * Other conditions associated with compromised immunity and vaccine response. * Primary or Secondary Immune deficiency. * Previous receipt of PPSV-23 vaccination.

Design outcomes

Primary

MeasureTime frameDescription
Immunoglobulin G (IgG) Antibodies6 months post vaccinationSerological response. Blood draw for assessment of pneumococcal specific titer IgG. Measured as mcg/mL

Countries

United States

Participant flow

Participants by arm

ArmCount
Pneumovax 23
Type 1 Diabetes subjects received Pneumovax 23-pneumococcal polysaccharide (PPSV23) Pneumovax 23- pneumococcal polysaccharide: PPSV23 is a vaccine to help protect against serious infection due to the Streptococcus pneumoniae bacteria. One dose administered intramuscularly or subcutaneously. Blood draw: 6 ml blood draw at baseline and 6 months post immunization
29
Total29

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject4

Baseline characteristics

CharacteristicPneumovax 23
Age, Continuous11.6 years
STANDARD_DEVIATION 3.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
28 Participants
Region of Enrollment
United States
29 participants
Sex/Gender, Customized
Female
11 Participants
Sex/Gender, Customized
Male
17 Participants
Sex/Gender, Customized
Unknown
1 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 29
other
Total, other adverse events
0 / 29
serious
Total, serious adverse events
0 / 29

Outcome results

Primary

Immunoglobulin G (IgG) Antibodies

Serological response. Blood draw for assessment of pneumococcal specific titer IgG. Measured as mcg/mL

Time frame: 6 months post vaccination

Population: Three subjects withdrew prior to the 6 months post vaccination blood draw and one subject withdrew prior to receiving the vaccine.

ArmMeasureValue (MEDIAN)
Pneumovax 23Immunoglobulin G (IgG) Antibodies270.0 mcg/mL

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026