This study was designed to evaluate the safety of the investigational rotavirus vaccine and
      the efficacy to prevent rotavirus gastroenteritis.

Rotavirus Efficacy and Safety Trial (REST)(V260-006)

Rotavirus Infections

Rotateq™

Comparator: Placebo

Safety and Efficacy of Pentavalent (G1, G2, G3, G4 , and P1) Human-Bovine Reassortant Rotavirus Vaccine in Healthy Infants

Number of participants with confirmed intussusception within 42 days after each vaccination with RotaTeq™/placebo.

Rotavirus gastroenteritis cases consist of all participants with one or more episodes classified as positive. Multiple positive episodes for one participant are counted as a single case.

Number of participants with a 3-fold rise or greater in G1 Serum neutralizing antibody (SNA) responses against rotavirus from baseline to postdose 3.

Health Outcomes Substudy - Occurrence of hospital admissions and emergency department visits for episode(s) of rotavirus gastroenteritis associated with serotypes G1, G2, G3, or G4 by treatment group. Occurrence was expressed as the annual number of events per 1000 person-years.

Number of participants with rotavirus gastroenteritis whose clinical score was >8 for the first episode and for the worst episode. Scores evaluated the intensity and duration of diarrhea, vomiting, fever, and behavioral symptoms. The total score for an episode is equal to the sum of the scores for each of the symptoms [range: total score 0 (best) to 24 (worst)].

Number of participants with rotavirus gastroenteritis whose clinical score was >16 for the first episode and for the worst episode. Scores evaluated the intensity and duration of diarrhea, vomiting, fever, and behavioral symptoms. The total score for an episode is equal to the sum of the scores for each of the symptoms [range: total score 0 (best) to 24 (worst)].

The number of participants who achieved seroprotection/seroconversion to hepatitis B, Haemophilus influenzae type b, diphtheria, tetanus, & polio types 1, 2, & 3, per established criteria.

Measurement of immune response in the group that received RotaTeq™ and the group that received placebo was performed by determining geometric mean antibody titers to Pertussis Toxin (PT), Pertussis Filamentous Haemagglutinin (FHA), and Pertussis Pertactin. Antibody titers were measured with an indirect, non-competitive, enzyme immunoassay (EIA).

Measurement of immune response in the group that received RotaTeq™ and the group that received placebo was performed by determining geometric mean antibody titers to pneumococcal serotypes 4, 6B, 9V, 14, 18C, 19F, and 23F. Serum antibody titers to type-specific pneumococcal polysaccharides were determined by an EIA.

Rotavirus Efficacy and Safety Trial (REST)(V260-006)

About this trial

Study ID

Status

Type

Phase

Placebo

Accepting

Trial Timing

What is this trial about?

What are the participation requirements?