A Blood Test to Look at Cells of the Immune System in Healthy Children

July 29, 2008 updated by: National Institute of Allergy and Infectious Diseases (NIAID)

Mononuclear Cell Phenotyping in Normal Children

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.

Study Overview

Status

Completed

Conditions

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.

Study Type

Observational

Enrollment

630

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Puerto Rico
      • Bayamon, Puerto Rico, 00956
        • Ramon Ruiz Arnau Univ Hosp / Pediatrics
      • San Juan, Puerto Rico, 009367344
        • San Juan City Hosp
      • San Juan, Puerto Rico, 009365067
        • Univ of Puerto Rico / Univ Children's Hosp AIDS
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • Univ of Alabama at Birmingham - Pediatric
      • Mobile, Alabama, United States, 36604
        • Univ of South Alabama
    • California
      • La Jolla, California, United States, 920930672
        • UCSD Med Ctr / Pediatrics / Clinical Sciences
      • Los Angeles, California, United States, 90033
        • Los Angeles County - USC Med Ctr
      • Los Angeles, California, United States, 900481804
        • Cedars Sinai / UCLA Med Ctr
      • Los Angeles, California, United States, 905022004
        • Harbor - UCLA Med Ctr / UCLA School of Medicine
      • San Francisco, California, United States, 941430105
        • UCSF / Moffitt Hosp - Pediatric
    • District of Columbia
      • Washington, District of Columbia, United States, 200102916
        • Children's Hosp of Washington DC
      • Washington, District of Columbia, United States, 20060
        • Howard Univ Hosp
    • Florida
      • Fort Lauderdale, Florida, United States, 33311
        • North Broward Hosp District
      • Jacksonville, Florida, United States, 32209
        • Univ of Florida Health Science Ctr / Pediatrics
      • Miami, Florida, United States, 33161
        • Univ of Miami (Pediatric)
      • Riviera Beach, Florida, United States, 33404
        • Palm Beach County Health Dept
    • Georgia
      • Columbus, Georgia, United States, 31901
        • The Med Ctr Inc
    • Illinois
      • Chicago, Illinois, United States, 60612
        • Cook County Hosp
      • Chicago, Illinois, United States, 606143394
        • Chicago Children's Memorial Hosp
      • Chicago, Illinois, United States, 606371470
        • Univ of Chicago Children's Hosp
      • Chicago, Illinois, United States, 60608
        • Mt Sinai Hosp Med Ctr / Dept of Pediatrics
    • Louisiana
      • New Orleans, Louisiana, United States, 701122699
        • Tulane Univ / Charity Hosp of New Orleans
      • New Orleans, Louisiana, United States, 701122699
        • Tulane Univ Hosp of New Orleans
    • Maryland
      • Baltimore, Maryland, United States, 212874933
        • Johns Hopkins Hosp - Pediatric
    • Massachusetts
      • Boston, Massachusetts, United States, 021155724
        • Children's Hosp of Boston
      • Springfield, Massachusetts, United States, 01199
        • Baystate Med Ctr of Springfield
      • Worcester, Massachusetts, United States, 016550001
        • Univ of Massachusetts Med School
    • Mississippi
      • Jackson, Mississippi, United States, 39213
        • Univ of Mississippi Med Ctr
    • New Jersey
      • New Brunswick, New Jersey, United States, 089030019
        • UMDNJ - Robert Wood Johnson Med School / Pediatrics
      • Newark, New Jersey, United States, 071032714
        • Univ of Medicine & Dentistry of New Jersey / Univ Hosp
      • Newark, New Jersey, United States, 07103
        • Saint Joseph's Hosp and Med Ctr/UMDNJ - New Jersey Med Schl
    • New York
      • Albany, New York, United States, 12208
        • Children's Hosp at Albany Med Ctr
      • Bronx, New York, United States, 10467
        • Montefiore Med Ctr Adolescent AIDS Program
      • Bronx, New York, United States, 10457
        • Bronx Lebanon Hosp Ctr
      • Great Neck, New York, United States, 11021
        • North Shore Univ Hosp
      • New Hyde Park, New York, United States, 11040
        • Schneider Children's Hosp
      • New York, New York, United States, 10016
        • Bellevue Hosp / New York Univ Med Ctr
      • New York, New York, United States, 10037
        • Harlem Hosp Ctr
      • Rochester, New York, United States, 146420001
        • Univ of Rochester Med Ctr
      • Stony Brook, New York, United States, 117948111
        • State Univ of New York at Stony Brook
    • North Carolina
      • Durham, North Carolina, United States, 277103499
        • Duke Univ Med Ctr
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 191044318
        • Children's Hosp of Philadelphia
    • South Carolina
      • Charleston, South Carolina, United States, 294253312
        • Med Univ of South Carolina
    • Texas
      • Houston, Texas, United States, 77030
        • Texas Children's Hosp / Baylor Univ
    • Washington
      • Seattle, Washington, United States, 981050371
        • Children's Hospital & Medical Center / Seattle ACTU

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 day to 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

A child may be eligible for this study if he/she:

  • Is 0 - 18 years old.
  • Is HIV-negative and is born to an HIV-negative mother.
  • Is healthy (no serious infection or disease).
  • Has signed informed consent of a parent or legal guardian if under 18.

Exclusion Criteria

A child will not be eligible for this study if he/she:

  • Is pregnant or breast-feeding.
  • Has already completed this study once before.
  • Is taking prescription medications other than prescription vitamins.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Collaborators

Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Investigators

  • Study Chair: W Shearer
  • Study Chair: H Rosenblatt

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

First Submitted

November 2, 1999

First Submitted That Met QC Criteria

August 30, 2001

First Posted (Estimate)

August 31, 2001

Study Record Updates

Last Update Posted (Estimate)

July 30, 2008

Last Update Submitted That Met QC Criteria

July 29, 2008

Last Verified

October 1, 2004

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ACTG P1009
  • PACTG P1009

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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