Efficacy Against RGE*

ROTARIX demonstrated efficacy vs placebo in the prevention of rotavirus gastroenteritis (RGE)1

 

ROTARIX demonstrated significant efficacy in the prevention of RGE of any grade of severity1,2

In a clinical trial studying the prevention of RGE, ROTARIX demonstrated:

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87% efficacy in the prevention of RGE of any grade of severity1,2 

Primary efficacy endpoint from 2 weeks after the second dose through 1 rotavirus season (95% CI: 80, 92) (P<0.001 vs placebo; according to protocol [ATP])1 

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90% first-dose efficacy in the prevention of RGE of any grade of severity1,†

Secondary efficacy endpoint immediately following dose 1 and prior to dose 2 (95% CI: 9, 100) (total vaccinated cohort)

 

ROTARIX is not approved for use as a single dose.

ROTARIX is not approved for use as a single dose.

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100% efficacy in reducing hospitalizations for RGE1

Secondary efficacy endpoint through 1 rotavirus season (95% CI: 82, 100) (P<0.001; ATP)1 

Study design

A randomized, double-blind, placebo-controlled study was conducted in 6 European countries comparing ROTARIX (n=2646) vs placebo (n=1348) (total vaccinated cohort). The first dose was given at 6-14 weeks of age, and the second dose was given at least 4 weeks after the first dose. The 2-dose series was completed by 24 weeks of age. Analysis of the ATP cohort included all infants in the efficacy cohort who received 2 doses of vaccine according to randomization (ROTARIX, n=2572; placebo n=1302).1,2

 

  • There are two formulations of ROTARIX: a reconstituted lyophilized formulation (supplied in a vial and oral dosing applicator presentation) and a liquid formulation (supplied in an oral dosing applicator-only presentation). Efficacy was evaluated using the reconstituted lyophilized formulation. These data are relevant to the liquid formulation because both formulations contain the same live, attenuated rotavirus strain and are manufactured using a similar process.1

 

CI=confidence interval.