Measles antibody trough levels after treatment with immunoglobulin products and predicted levels assuming lower measles antibody specifications.
Transfusion
; 58 Suppl 3: 3072-3077, 2018 Dec.
Article
en En
| MEDLINE
| ID: mdl-30430616
ABSTRACT
BACKGROUND:
Widespread vaccination against measles has resulted in decreasing measles antibody levels in human immune globulin (IG) products. As levels continue to decline, it needs to be determined whether the release specifications for measles antibody levels in IG products can be lowered and still provide protection against infection for patients who receive IG treatment for primary immunodeficiency disease. STUDY DESIGN ANDMETHODS:
Trough level measles neutralizing antibodies were measured in 10 pediatric patients with primary immunodeficiency disease (ages 2-16) treated with IG administered both by intravenous and subcutaneous infusion. The results were used to model worst-case (lowest) serum measles antibody levels in two cases 1) the current case with intravenous dosage at 300 mg/kg at a measles antibody level of 0.48× Center for Biologics Evaluation and Research Reference 176 and 2) a future case with intravenous dosage at 400 mg/kg and 0.30× Center for Biologics Evaluation and Research Reference 176.RESULTS:
Serum trough measles neutralizing antibody levels were an average of 11-fold or greater above minimum protective levels for immunocompetent individuals of 0.12 IU/mL in both the intravenous and subcutaneous phases of the study. Modeling using both the current worst-case dose and future case shows average levels for IG intravenous/subcutaneous infusion of 3.9/4.8- and 3.2/4.0-fold above 0.12 IU/mL for the two cases, respectively.CONCLUSION:
Lowering the measles antibody level specification to 0.30× Center for Biologics Evaluation and Research Reference 176 in IG products will still provide trough serum antibody levels against measles infection of greater than 0.12 IU/mL when dosed at 400 mg/kg or higher.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Inmunoglobulina G
/
Vacuna Antisarampión
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Morbillivirus
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Síndromes de Inmunodeficiencia
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Sarampión
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Anticuerpos Antivirales
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Child
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Child, preschool
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Humans
Idioma:
En
Revista:
Transfusion
Año:
2018
Tipo del documento:
Article