ClinicalTrials.gg
CompletedNCT00000815Updated Oct 28, 2021

A Phase II, Comparative Study of Seroconversion of Single-Dose and Two-Dose Measles Vaccination in HIV-Infected and HIV-Uninfected Children: A Multicenter Trial of the Pediatric AIDS Clinical Trials Group

A Phase 2 interventional study of Attenuvax and M-M-R-II in HIV Infections and Measles, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 46 sites in 2 countries. Open to participants aged 6 Months to 7 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-10-28.

Primary conditionAcquired Immunodeficiency SyndromeRegistry: HIV InfectionsReclassifiedWhy we changed it
Registry
HIV Infections — the first condition term the registry derived for this study.
ClinicalTrials.gg
Acquired Immunodeficiency Syndrome
Why
  1. The study's title name Acquired Immunodeficiency Syndrome, a narrower term within HIV Infections.
Confidence
High: the new condition is named in the study's own title. Of 46 hand-checked studies reclassified this way, 72% were exactly right and 89% in the right disease family; the registry's first term was right for 4% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
270
Allocation
Randomized
Ages
6 Months to 7 Months
Sex
All
01

Study summary

To compare measles seroconversion rates (development of antibodies) at 13 months of age in HIV-infected and uninfected children on one of two immunization schedules: attenuated measles/mumps/rubella virus (M-M-R II) vaccine at 12 months versus attenuated measles vaccine (Attenuvax) at 6 months plus M-M-R II vaccine at 12 months.

Recommendations for the age at vaccination should balance the need to minimize the risk of morbidity and mortality with the benefit of achieving the highest seroconversion rates. Immunizing a more intact immune system at an earlier stage of HIV infection may in turn achieve better and long-lasting measles protection. This study will help define a more effective measles vaccine regimen for children diagnosed with HIV infection and will provide greater insight into the functional status of the HIV-infected children's humoral immune system.

Read the detailed description

Recommendations for the age at vaccination should balance the need to minimize the risk of morbidity and mortality with the benefit of achieving the highest seroconversion rates. Immunizing a more intact immune system at an earlier stage of HIV infection may in turn achieve better and long-lasting measles protection. This study will help define a more effective measles vaccine regimen for children diagnosed with HIV infection and will provide greater insight into the functional status of the HIV-infected children's humoral immune system.

Patients, HIV infected and uninfected, are randomized to one of two attenuated measles vaccine schedules: at 6 and 12 months of age, or at 12 months of age only. Attenuvax is administered as the month 6 vaccine and M-M-R II as the month 12 vaccine. Patients are followed for 24 months after the last vaccination.

02

Conditions studied

  • HIV Infections
  • Measles

Keywords

  • Acquired Immunodeficiency Syndrome
  • AIDS-Related Complex
  • Measles-Mumps-Rubella Vaccine
  • Vaccines, Attenuated
  • Measles Vaccine
  • Immunization Schedule
  • Measles Virus
  • Measles
03

In context

Acquired Immunodeficiency Syndrome Reclassified

3,035 studies on the registry are indexed under Acquired Immunodeficiency Syndrome; 306 are open to participants now.

This study's planned enrollment of 270 is above the median of 96 across 2,251 interventional studies indexed under Acquired Immunodeficiency Syndrome.

Browse Acquired Immunodeficiency Syndrome studies →

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,446 studies on the registry; 179 are open to participants now.

Of its 405 completed or terminated interventional studies of FDA-regulated products, 302 (75%) have results posted.

Compared within Acquired Immunodeficiency Syndrome, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is HIV Infections. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
6 Months to 7 Months
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Patients must have:

  • Willing to have and receive results of test
  • Been born to mothers with HIV infection or history of AIDS-defining condition by CDC criteria.
  • No history of opportunistic infection.
  • No known exposure to measles within 14 days prior to study entry.
  • >= 750 cells/mm3 or more than 15% at 6 months of age.
  • Parent or legal guardian available to give written and be willing to comply with all study requirements.
  • Childhood immunizations (other than measles) according to current recommendations of the Immunization Practice Advisory Committee and American Academy of Pediatrics.

NOTE:

  • Coenrollment on other therapeutic protocols (except for ACTG 185) is permitted.

NOTE:

  • Patients must be located in a geographical area where measles immunization at 12 months is standard of care.

Recommended:

  • Childhood immunizations other than measles according to current guidelines.

Exclusion criteria

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

  • Intercurrent illness and/or fever for 7 days.
  • Known sensitivity or allergy to neomycin or eggs.

Concurrent Medication:

Excluded:

  • IVIG.
  • Uninterrupted or anticipated therapy (>= 2 mg/kg/day) for more than 2 weeks duration.

Patients with the prior condition are excluded:

  • count \< 50,000/mm3 at any time prior to study entry.

Prior Medication:

Excluded:

  • Any IgG preparation within the past 6 months.
Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

CD4 count

The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
270 participants (estimated)

Study arms

  • Experimental
    1

    Participants who receive vaccination at 6 and 12 months of age

    Biological: Attenuvax · Biological: M-M-R-II

  • Experimental
    2

    Participants who receive vaccination only at 12 months of age

    Biological: M-M-R-II

Interventions

  • BiologicalAttenuvax

    Measles virus vaccine (attenuate)administered subcutaneously at a single dose of 0.5 mL at 6 months of age

  • BiologicalM-M-R-II

    Measles-Mumps-Rubella vaccine (attenuated)administered subcutaneously as a single dose of 0.5 mL at 12 months of age

06

What researchers measure

Primary outcomes

  1. Comparison of measles seroconversion rates at 13 months of age between HIV-infected children vaccinated at 12 months of age and HIV-infected children vaccinated at 6 and 12 months of age

    Time frame: Throughout study

  2. Comparison of seroconversion rates at 13 months of age (following second vaccination) of HIV-uninfected children with HIV-infected children.

    Time frame: Throughout study

  3. Comparison of seroconversion rates at 13 months of age (following single vaccination) of HIV-uninfected children with HIV-infected children following vaccination at 12 months of age

    Time frame: Throughout study

Secondary outcomes

  1. Comparison of measles seroconversion rates in HIV-infected children vaccinated at 6 months of age with HIV-infected children vaccinated at 12 months of age

    Time frame: Throughout study

  2. Assessment of measles antibody decay and persistence in HIV-infected and HIV-unifected vaccinees

    Time frame: Throughout study

  3. Evaluation of adverse effects and immune reactions to vaccine in HIV-infected children and HIV-uninfected vaccinees

    Time frame: Throughout study

07

Study locations

46 sites
  • UAB, Dept. of Ped., Div. of Infectious Diseases
    Birmingham, Alabama 35233, United States
  • Long Beach Memorial Med. Ctr., Miller Children's Hosp.
    Long Beach, California 90801, United States
  • Usc La Nichd Crs
    Los Angeles, California 90033, United States
  • UCLA-Los Angeles/Brazil AIDS Consortium (LABAC) CRS
    Los Angeles, California, United States
  • Children's Hosp. & Research Ctr. Oakland, Ped. Clinical Research Ctr. & Research Lab.
    Oakland, California 94609, United States
  • UCSD Maternal, Child, and Adolescent HIV CRS
    San Diego, California, United States
  • Harbor - UCLA Med. Ctr. - Dept. of Peds., Div. of Infectious Diseases
    Torrance, California, United States
  • Univ. of Colorado Denver NICHD CRS
    Aurora, Colorado, United States
  • Yale Univ. School of Medicine - Dept. of Peds., Div. of Infectious Disease
    New Haven, Connecticut 06504, United States
  • Children's National Med. Ctr., ACTU
    Washington, District of Columbia 20010, United States
  • Howard Univ. Washington DC NICHD CRS
    Washington, District of Columbia 20060, United States
  • Univ. of Florida Jacksonville NICHD CRS
    Jacksonville, Florida, United States
  • Emory Univ. School of Medicine, Dept. of Peds., Div. of Infectious Diseases
    Atlanta, Georgia 30306, United States
  • Cook County Hosp.
    Chicago, Illinois 60612, United States
  • Chicago Children's CRS
    Chicago, Illinois 60614, United States
  • Univ. of Chicago - Dept. of Peds., Div. of Infectious Disease
    Chicago, Illinois, United States
  • Univ. of Illinois College of Medicine at Chicago, Dept. of Peds.
    Chicago, Illinois, United States
  • Tulane/LSU Maternal/Child CRS
    New Orleans, Louisiana, United States
  • Johns Hopkins Hosp. & Health System - Dept. of Peds., Div. of Infectious Diseases
    Baltimore, Maryland, United States
  • Univ. of Maryland Med. Ctr., Div. of Ped. Immunology & Rheumatology
    Baltimore, Maryland, United States
  • HMS - Children's Hosp. Boston, Div. of Infectious Diseases
    Boston, Massachusetts, United States
  • Children's Hospital of Michigan NICHD CRS
    Detroit, Michigan 48201, United States
  • UMDNJ - Robert Wood Johnson
    New Brunswick, New Jersey, United States
  • NJ Med. School CRS
    Newark, New Jersey, United States
  • St. Joseph's Hosp. & Med. Ctr. of New Jersey
    Paterson, New Jersey 07503, United States
  • Children's Hospital at Albany Medical Center, Dept. of Peds.
    Albany, New York 12208, United States
  • North Shore-Long Island Jewish Health System, Dept. of Peds.
    Great Neck, New York 11021, United States
  • Schneider Children's Hosp., Div. of Infectious Diseases
    New Hyde Park, New York 11040, United States
  • NYU Med. Ctr., Dept. of Medicine
    New York, New York 10016, United States
  • Metropolitan Hosp. Ctr.
    New York, New York 10029, United States
  • Metropolitan Hosp. NICHD CRS
    New York, New York 10029, United States
  • Columbia IMPAACT CRS
    New York, New York 10032, United States
  • Incarnation Children's Ctr.
    New York, New York 10032, United States
  • Harlem Hosp. Ctr. NY NICHD CRS
    New York, New York 10037, United States
  • Strong Memorial Hospital Rochester NY NICHD CRS
    Rochester, New York, United States
  • SUNY Stony Brook NICHD CRS
    Stony Brook, New York, United States
  • SUNY Upstate Med. Univ., Dept. of Peds.
    Syracuse, New York 13210, United States
  • DUMC Ped. CRS
    Durham, North Carolina 27710, United States
  • The Children's Hosp. of Philadelphia IMPAACT CRS
    Philadelphia, Pennsylvania, United States
  • Med. Univ. of South Carolina, Div. of Ped. Infectious Diseases
    Charleston, South Carolina, United States
  • Texas Children's Hosp. CRS
    Houston, Texas, United States
  • Childrens Hosp. of the Kings Daughters
    Norfolk, Virginia 23507, United States
  • UW School of Medicine - CHRMC
    Seattle, Washington, United States
  • Univ. Hosp. Ramón Ruiz Arnau, Dept. of Peds.
    Bayamon, Puerto Rico
  • San Juan City Hosp. PR NICHD CRS
    San Juan, Puerto Rico
  • Univ. of Puerto Rico Ped. HIV/AIDS Research Program CRS
    San Juan, Puerto Rico
08

References and documents

Publications

  • Chandwani S, Beeler J, Li H, Audet S, Smith B, Moye J, Nalin D, Krasinski K; PACTG 225 Study Team. Safety and immunogenicity of early measles vaccination in children born to HIV-infected mothers in the United States: results of Pediatric AIDS Clinical Trials Group (PACTG) protocol 225. J Infect Dis. 2011 Jul;204 Suppl 1(Suppl 1):S179-89. doi: 10.1093/infdis/jir089. PubMed 21666159 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 28, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00000815
Responsible party
Sponsor
First posted
Aug 31, 2001
Completion
Aug 2001
Last update
Oct 28, 2021

Study contacts

Chandwani S
study chair
Krasinski K
study chair
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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