- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT00143780
Pneumonia Vaccine in Bone Marrow Transplant Recipients: Usefulness of Donor Vaccination
Immunogenicity of Pneumococcal Conjugate Vaccine in Adult Allogeneic Bone Marrow Transplant Recipients - Randomized Controlled Trial of Pre-Transplant Donor Immunization
Studienübersicht
Status
Bedingungen
Detaillierte Beschreibung
This is a randomized controlled trial designed to assess the immunogenicity of the new pneumococcal conjugate vaccine in a cohort of allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients. This will be done by using an approach of pre-transplant donor immunization with post-transplant recipient immunization. Response will be compared with the standard 23-valent polysaccharide vaccine. It is hypothesized that the conjugate vaccine will provide an enhanced response in this group of immunosuppressed individuals who respond poorly to standard polysaccharide vaccines.
Specific objectives of this study are:
- To determine the antibody response to both vaccines via a measurement of total antibody response and by the opsonophagocytic assay. This assay has the advantage of assessing if patient antibody responses represent truly functional antibodies that display opsonic activity against pneumococcus and is likely better correlated with protective efficacy.
- To determine any acute adverse reactions of the conjugate vaccine in this population. Results of this trial will help lay the foundation for the development of a rationale and optimal pneumococcal vaccination strategy that would prevent significant morbidity in this patient population.
We hypothesize that pneumococcal conjugate vaccine, due to its T-cell dependent response will have greater immunogenicity and protective effect in an allo-HSCT population by using a donor immunization strategy.
Studientyp
Einschreibung
Phase
- Phase 4
Kontakte und Standorte
Studienorte
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Ontario
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Toronto, Ontario, Kanada, M5G 2M9
- University Health Network-Princess Margaret Hospital
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
Recipient - Adult male or female marrow recipients who fulfill the following criteria will be eligible for the study: a) Will undergo allogeneic-HSCT in 2-3 weeks.
b) No splenectomy c) Not currently receiving IVIG d) Able to provide written informed consent and comply with study protocol e) Age > 16
Donor - Adult male or female marrow donors who fulfill the following criteria will be eligible for the study:
- Recipient of donor marrow agrees to participate in study.
- No prior pneumococcal vaccination within the last 5 years
- Not on immunosuppressive medication (eg., corticosteroids)
- No history of immunosuppressive condition that may potentially impair vaccine response eg, systemic lupus erythematosus, sarcoidosis, rheumatoid arthritis
- No splenectomy
- Able to provide written informed consent and comply with study protocol
- Age > 16
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Doppelt
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
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Immunogenicity of two vaccines via a determination of serotype specific capsular antibody formation and functional antibody formation from donor and recipient serum.
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
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All patients will be called by telephone 24 hours after receiving vaccine to determine if any acute adverse events occurred. Any occurance of pneumococcal disease in recipients for one year post-transplant during the study period will be recorded.
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Mitarbeiter und Ermittler
Mitarbeiter
Ermittler
- Hauptermittler: Deepali Kumar, BSc, MSc, MD, FRCP(C), University Health Network, Toronto
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- 02-0182-C
- P.S.I. Grant No. 02-67
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