Trials / Completed
CompletedNCT00919321
The Duration of Humoral Immunity and the Memory Cell Function After Vaccination With 7-valent Pneumococcal Conjugate Vaccine in CLL
- Status
- Completed
- Phase
- Phase 4
- Study type
- Interventional
- Enrollment
- 32 (actual)
- Sponsor
- Tampere University Hospital · Academic / Other
- Sex
- All
- Age
- 45 Years – 90 Years
- Healthy volunteers
- Accepted
Summary
Patients with chronic lymphocytic leukemia (CLL)have had very poor humoral responses to pneumococcal polysaccharide vaccine (PPV). The vaccine in which pneumococcal polysaccharide antigens are conjugated to protein (PCV) have been immunogenic in CLL patients in our previous studies. The purpose of this study is to evaluate the duration of these vaccine-induced antibodies and the function of memory cells by giving a one dose of PPV-vaccine after several years of PCV-vaccination.
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| BIOLOGICAL | Pneumococcal polysaccharide vaccine (PPV) | One intramuscular injection |
Timeline
- Start date
- 2009-06-01
- Primary completion
- 2013-12-01
- Completion
- 2013-12-01
- First posted
- 2009-06-12
- Last updated
- 2014-02-19
Locations
1 site across 1 country: Finland
Source: ClinicalTrials.gov record NCT00919321. Inclusion in this directory is not an endorsement.