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A Phase 3, Open-label, Single-Arm Trial to Evaluate the Safety, Tolerability, and Immunogenicity of 13-valent Pneumococcal Conjugate Vaccine in Children With Sickle Cell Disease Previously Immunized With 23-valent Pneumococcal Polysaccharide Vaccine

A Phase 3, Open-label, Single-Arm Trial to Evaluate the Safety, Tolerability, and Immunogenicity of 13-valent Pneumococcal Conjugate Vaccine in Children With Sickle Cell Disease Previously Immunized With 23-valent Pneumococcal Polysaccharide Vaccine

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2009-011396-77-FR
Enrollment
200
Registered
2009-07-10
Start date
2009-10-09
Completion date
Unknown
Last updated
2021-12-13

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

Conditions

Pneumococcal infection MedDRA version: 9.1 Level: LLT Classification code 10061353 Term: Pneumococcal infection

Interventions

Sponsors

Wyeth Research Division of Wyeth Pharmaceuticals Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female subject between the ages of =6 to =65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. History of culture-proven invasive disease caused by S. pneumoniae within the last year. 2. Subject has/had a major illness or condition that, in the investigator’s judgment, will substantially increase the risk associated with the subject’s participation in, and completion of the study. 3. Subject has/had a major illness or condition that, in the investigator’s judgment, could preclude the evaluation of the subject’s response to vaccination. 4. History of hematopoietic stem cell transplantation. 5. Previous vaccination with PnC vaccine. 6. Has a dose of 23vPS recommended between enrollment and the blood draw at visit 4. 7. Previous anaphylactic reaction to any vaccine or vaccine-related component. 8. Contraindication to vaccination with pneumococcal conjugate vaccine. 9. Bleeding diathesis or condition associated with prolonged bleeding time that would contraindicate intramuscular injection. 10. Receipt of immunoglobulin infusion or injection during the 42 days preceding enrollment. 11. Known or suspected immune deficiency or suppression. 12. Pregnant or breast feeding female. 13. Participation in another investigational trial from 28 days before enrollment until the end of the study. (Note: participation in purely observational studies is acceptable.) 14. Subject is a direct descendant (child or grandchild) of a member of site study personnel or is study personnel.

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the immune response 1 month after 2 doses of 13vPnC given 6 months apart compared to 1 month after 1 dose of 13vPnC as measured by fold rise in serotype specific IgG geometric mean concentrations (GMCs) in children with SCD who have previously been vaccinated with at least 1 dose of 23vPS.;Secondary Objective: To evaluate the immune response 1 month after 2 doses of 13vPnC given 6 months apart compared to 1 month after 1 dose of 13vPnC as measured by serotype-specific IgG GMC in children with SCD who have previously been vaccinated with at least 1 dose of 23vPS.;Primary end point(s): The geometric mean fold rise (GMFR) in IgG is the primary analysis endpoint following dose 2 relative to dose 1 for each serotype.

Countries

France, Italy, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026