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| Tracking Information | |||||||||
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| First Received Date ICMJE | November 2, 1999 | ||||||||
| Last Updated Date | July 29, 2008 | ||||||||
| Start Date ICMJE | |||||||||
| Primary Completion Date | |||||||||
| Current Primary Outcome Measures ICMJE | |||||||||
| Original Primary Outcome Measures ICMJE | |||||||||
| Change History | Complete list of historical versions of study NCT00001109 on ClinicalTrials.gov Archive Site | ||||||||
| Current Secondary Outcome Measures ICMJE | |||||||||
| Original Secondary Outcome Measures ICMJE | |||||||||
| Descriptive Information | |||||||||
| Brief Title ICMJE | A Blood Test to Look at Cells of the Immune System in Healthy Children | ||||||||
| Official Title ICMJE | Mononuclear Cell Phenotyping in Normal Children | ||||||||
| Brief Summary | The purpose of this study is to learn more about some of the immune cells in the blood (CD4 cells, for example) of healthy children in order to better understand the differences in the blood cells of children infected with HIV. Because children's bodies are still developing, their cells are different from those of adults, and their bodies respond differently to infections such as HIV. In order to understand how immune cells grow and mature so that they can fight HIV, it is important to see how these cells behave in normal children. |
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| Detailed Description | Early in life, the cells involved in immune selection differentiate into CD4+ and CD8+ cells. Currently there is insufficient information on the cell maturation and activation of these peripheral blood mononuclear cell (PBMC) subsets in normal children. The critical need for this information has been brought about by the pediatric HIV/AIDS epidemic, which requires the measurement of peripheral blood CD4+ T cells and other cells types for interpretation of HIV disease progression. The immunopathogenesis of pediatric HIV infection differs from that in adults but is not well understood. In order to better understand HIV disease progression in HIV-infected children, these PBMC subsets must be studied in normal children so that control values can be established. Healthy infants, children, and adolescents presenting for routine care or elective surgery have a single blood sample obtained. Blood is used for complete blood count, peripheral blood mononuclear cell flow analysis for surface markers, and plasma and cell storage. Demographic information including age, sex, race, and ethnicity is obtained at the time of the blood draw. The reason for the patient's visit is also documented. No study drugs are administered or supplied as part of this study. Statistical analysis is used to estimate the median distribution of each CD4 and CD8 subset. |
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| Study Phase | |||||||||
| Study Type ICMJE | Observational | ||||||||
| Study Design ICMJE | |||||||||
| Condition ICMJE |
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| Intervention ICMJE | |||||||||
| Study Arms / Comparison Groups | |||||||||
| Publications * | Shearer WT, Rosenblatt HM, Gelman RS, Oyomopito R, Plaeger S, Stiehm ER, Wara DW, Douglas SD, Luzuriaga K, McFarland EJ, Yogev R, Rathore MH, Levy W, Graham BL, Spector SA; Pediatric AIDS Clinical Trials Group. Lymphocyte subsets in healthy children from birth through 18 years of age: the Pediatric AIDS Clinical Trials Group P1009 study. J Allergy Clin Immunol. 2003 Nov;112(5):973-80. | ||||||||
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* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline. |
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| Recruitment Information | |||||||||
| Recruitment Status ICMJE | Completed | ||||||||
| Enrollment ICMJE | 630 | ||||||||
| Completion Date | |||||||||
| Primary Completion Date | |||||||||
| Eligibility Criteria ICMJE | Inclusion Criteria A child may be eligible for this study if he/she:
Exclusion Criteria A child will not be eligible for this study if he/she:
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| Gender | Both | ||||||||
| Ages | up to 18 Years | ||||||||
| Accepts Healthy Volunteers | Yes | ||||||||
| Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||||||
| Location Countries ICMJE | United States, Puerto Rico | ||||||||
| Administrative Information | |||||||||
| NCT ID ICMJE | NCT00001109 | ||||||||
| Responsible Party | |||||||||
| Study ID Numbers ICMJE | ACTG P1009, PACTG P1009 | ||||||||
| Study Sponsor ICMJE | National Institute of Allergy and Infectious Diseases (NIAID) | ||||||||
| Collaborators ICMJE | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | ||||||||
| Investigators ICMJE |
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| Information Provided By | National Institute of Allergy and Infectious Diseases (NIAID) | ||||||||
| Verification Date | October 2004 | ||||||||
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ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |
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