- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Description détaillée
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.
Type d'étude
Inscription
Phase
- Phase 4
Contacts et emplacements
Lieux d'étude
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Ontario
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Toronto, Ontario, Canada, M5G 2M9
- University Health Network-Princess Margaret Hospital
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Double
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
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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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Mesures de résultats secondaires
Mesure des résultats |
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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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Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Deepali Kumar, BSc, MSc, MD, FRCP(C), University Health Network, Toronto
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 02-0182-C
- P.S.I. Grant No. 02-67
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