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The purpose of the study is to determine whether patients with chronic lymphocytic leukaemia (CLL) will benefit from vaccination with a 13-valent conjugated pneumococcal vaccine, Prevenar13, compared with a conventional 23-valent capsular polysaccharide vaccine in terms of immune response.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Pneumovax | Active Comparator | Pneumovax, 1x 0.5 ml injection |
|
| Prevenar 13 | Experimental | Prevenar 13, 1x 0.5 ml injection |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Prevenar 13 | Drug | 13-valent pneumococcal conjugated vaccine |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Immune response to Pneumovax compared to immune response to Prevenar | 1 month post vaccination |
| Measure | Description | Time Frame |
|---|---|---|
| Serotype-specific immunoglobulin G (IgG) antibody levels | Immune response to Pneumovax vs. Prevenar13 | 1 and 6 months post vaccination |
| Levels of opsonophagocytic antibodies (OPA) | Immune response |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Eva Kimby, Professor | Karolinska University Hospital, SE-141 86 Stockholm, Sweden | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Karolinska University Hospital | Stockholm | Stockholm County | 14186 | Sweden |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40396505 | Derived | Zorger AM, Hirsch C, Baumann M, Feldmann M, Brockelmann PJ, Mellinghoff S, Monsef I, Skoetz N, Kreuzberger N. Vaccines for preventing infections in adults with haematological malignancies. Cochrane Database Syst Rev. 2025 May 21;5(5):CD015530. doi: 10.1002/14651858.CD015530.pub2. |
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| ID | Term |
|---|---|
| D015451 | Leukemia, Lymphocytic, Chronic, B-Cell |
| ID | Term |
|---|---|
| D015448 | Leukemia, B-Cell |
| D007945 | Leukemia, Lymphoid |
| D007938 | Leukemia |
| D009370 | Neoplasms by Histologic Type |
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| ID | Term |
|---|---|
| C538862 | 13-valent pneumococcal vaccine |
| D022242 | Pneumococcal Vaccines |
| ID | Term |
|---|---|
| D022541 | Streptococcal Vaccines |
| D001428 | Bacterial Vaccines |
| D014612 | Vaccines |
| D001688 | Biological Products |
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| Pneumovax |
| Drug |
23-valent pneumococcal polysaccharide vaccine |
|
| 6 months post vaccination |
| Serotype-specific IgG antibody levels by ELISA, geometric mean concentrations (GMCs)between arms | 1 and 6 months post vaccination |
| D009369 |
| Neoplasms |
| D006402 | Hematologic Diseases |
| D006425 | Hemic and Lymphatic Diseases |
| D008232 | Lymphoproliferative Disorders |
| D008206 | Lymphatic Diseases |
| D007160 | Immunoproliferative Disorders |
| D007154 | Immune System Diseases |
| D002908 | Chronic Disease |
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D045424 |
| Complex Mixtures |