Live, attenuated human G1P[8] rotavirus vaccine; lyophilized pwd for oral administration after reconstitution; preservative-free.
Indication:
Prevention of rotavirus gastroenteritis caused by G1 and non-G1 types (G3, G4, and G9) in infants and children.
Pharmacology:
Before rotavirus immunization programs were put into effect, most children became infected with this virus before age 5 years. Severe, dehydrating rotavirus gastroenteritis occurred in young children, mostly in those who were 3–35 months old; about 20% of cases before age 6months resulted in hospitalization. Rotarix contains a live, attenuated rotavirus that replicates in the small intestine and induces immunity.
Clinical Trials:
The efficacy of Rotarix in preventing rotavirus gastroenteritis was demonstrated in 2 clinical studies conducted in Europe and Latin America involving over 24,000 infants. In these studies, oral polio vaccine was not administered concurrently, although
other childhood vaccines could be coadministered.
A randomized, double-blind, placebo-controlled clinical trial involving 3,994 infants was conduced in Europe. Either Rotarix or placebo was administered to healthy infants as a 2-dose series. The primary efficacy endpoint was the prevention of any grade of rotavirus gastroenteritis caused by natural rotavirus from 2 weeks after the 2nd dose through one rotavirus season. The efficacy of Rotarix against gastroenteritis of any severity through one rotavirus season was 87.1%, while the efficacy against severe gastroenteritis was 95.8%. The protective effect of Rotarix against gastroenteritis of any severity observed in the time period immediately following the 1st dose and before the 2nd dose was 89.8%. The efficacy of Rotarix in reducing hospitalizations for rotavirus gastroenteritis through one rotavirus season was 100%.
Adults:
Not applicable.
Children:
<6 weeks or >24 weeks of age: not recommended. Each oral dose is 1mL. Give 1st dose beginning at 6 weeks of age, 2nd dose at least 4 weeks later; complete 2-dose series by 24th week of age. May give a replacement dose at same vaccination visit if dosing is incomplete or regurgitated.
Contraindications:
Uncorrected congenital GI tract malformation (eg, Meckel's diverticulum) (increased risk of intussusception).
Precautions:
Acute diarrhea or vomiting (delay immunization). Chronic GI disorders. Immunodeficiency or immunosuppressed close contacts (live virus shedding may allow transmission to others). Latex allergy. Pregnancy (Cat.C): not applicable.
Interactions:
May give with concomitant vaccines (eg, DTaP, Hep B, Inactivated Poliovirus Vaccine Combined, Hib conjugate). Immunosuppressants (eg, irradiation, chemotherapy, high-dose steroids): may get suboptimal response.
Adverse reactions:
Fussiness/irritability, cough/runny nose, fever, loss of appetite, vomiting, diarrhea, dehydration, pneumonia; rare: Kawasaki disease.
Note:
Report adverse events to VAERS at (800) 822-7967 and to GlaxoSmithKline at (888) 825-5249.
How supplied:
Vials—10 (w. prefilled diluent in oral applicator)