Clinical trial NCT00156559: MMR and Varicella Vaccine in Premature Infants
Official title: MMR and Varicella Vaccine Responses in Extremely Premature Infants
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Chickenpox
Rubella
Rubeola
Mumps
Keywords: immunization
vaccine
low birth weight infant
premature infant
Lead sponsor: University of Rochester
Sponsor class: OTHER
First posted: 2005-09-12
Enrollment: 32
Sex: ALL
Minimum age (years): 12
Maximum age (years): 16
Standard ages: CHILD
Accepts healthy volunteers: yes
Time perspective: PROSPECTIVE

Brief summary: This research is designed to address the question, "Does the relative deficit in vaccine immunogenicity in extremely premature infants persist beyond the first 6 months of life?" We propose to measure the immunogenicity of varicella and mumps-measles-rubella vaccines in relatively healthy, 12-to-15 month-old children born at \<29 weeks gestation, when compared to full-term infants, as measured by the relevant viral serologies.

Detailed description: Title: MMR and Varicella Vaccine Responses in Extremely Premature Infants

Phase: IV

Population: 16 generally healthy premature infants born at \< 29 weeks' gestation, \< 16 months old from the Rochester area 16 generally healthy full-term infants born at \>/= 37 weeks' gestation, \< 16 months old from the Rochester area

Number of Sites: University of Rochester

Study Duration: 1.5 - 8.5 months

Description of Agent or Intervention:

Subjects will make 2 study visits. The first, at 15 months of age, will coincide with a routine well child visit. Subjects will have 2 mL of blood drawn at the time of their routine, 15-month MMR, varicella, and pneumococcal conjugate immunizations. At a second study visit 4-6 weeks later, another 2 mL of blood will be drawn.

Objectives:

Primary: We propose to measure the immunogenicity of routinely administered varicella and mumps-measles-rubella vaccines in relatively healthy, 12-to-15 month-old children born at \<29 weeks gestation (premature), when compared to that in full-term infants.

Measles titers will be measured by neutralization assay. Mumps and rubella titers will be measured by enzyme-linked florescent immunoassay. Varicella titers will be measured by enzyme linked immunosorbent assay.

Safety will be assessed by parental recall of vaccine-related adverse events and by active, prospective collection of blood-draw-associated adverse events.

Schematic of Study Design:

Subjects will be approached at 9-12 months of age for inclusion, and will consent at this time or at Visit 1

Visit 1 (15 mos):

Preterm N = 16, Full term N = 16, 2 ml blood draw

Routine MMR, varicella vaccines administered by primary pediatrician per standard of care (at Visit 1)

Visit 2 (16 mos):

Preterm N = 16, Full term N = 16, 2 ml blood draw

Varicella, mumps, measles and rubella vaccine titers measured by ELISA

Eligibility criteria: Inclusion Criteria:

Subjects must meet all of the inclusion criteria to participate in this study.

1. Premature infant \< 29 weeks' gestation at birth or term infant \>/= 37 weeks' gestation at birth.
2. Postnatal age \< 16 months, 0 days.
3. Has not yet received MMR or varicella vaccines. (There are no restrictions on the administration of other vaccines at the time of MMR/varicella vaccination.)
4. Parental permission.
5. Agreement of primary care pediatrician/ health care provider.
6. Receives primary pediatric care within an approximate 25-mile radius of the University of Rochester.
7. Healthy status at enrollment.

Exclusion Criteria:

1. Known immunodeficiency.
2. Systemic corticosteroid therapy at the time of MMR/varicella vaccination.
3. Requiring oxygen therapy.
4. Clinically significant findings on review of medical history and physical exam determined by the investigator or sub-investigator to be sufficient for exclusion.
5. Any condition determined by the investigator that would interfere with the evaluation of the vaccine or be a potential health risk to the subject.

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: Rochester
country: United States
facility: University of Rochester
state: New York
Study officials:
affiliation: University of Rochester
name: Carl T. D'Angio, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: D'Angio CT, Boohene PA, Mowrer A, Audet S, Menegus MA, Schmid DS, Beeler JA. Measles-mumps-rubella and varicella vaccine responses in extremely preterm infants. Pediatrics. 2007 Mar;119(3):e574-9. doi: 10.1542/peds.2006-2241.