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A randomized controlled Phase 3 trial to assess the safety, immunogenicity and efficacy of a trivalent rotavirus P2-VP8 subunit vaccine in prevention of severe rotavirus gastroenteritis in healthy infants in Africa and India

A Phase 3 double-blind, randomized, active comparator-controlled, group-sequential, multinational trial to assess the safety, immunogenicity and efficacy of a trivalent rotavirus P2-VP8 subunit vaccine in prevention of severe rotavirus gastroenteritis in healthy infants

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
PACTR
Registry ID
PACTR201907491834482
Enrollment
8200
Registered
2019-07-02
Start date
2019-07-29
Completion date
Unknown
Last updated
2026-09-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rotavirus

Interventions

Trivalent subunit vaccine P2 VP8
Rotarix

Sponsors

PATH
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Healthy infants as established by medical history and clinical examination before randomization into the study Age: =6 and <8 weeks at the time of first study vaccination (42 days through 55 days old, inclusive, with the day after birth considered 1-day old) Parental ability and willingness to provide written informed consent Intention of the participants’ parents to remain in the area with the child during the study period

Exclusion criteria

Exclusion criteria: Acute disease at the time of enrollment/first study vaccination - temporary exclusion Presence of fever on the day of enrollment/first study vaccination (axillary temperature >37.6C) - temporary exclusion Concurrent participation in another clinical trial throughout the entire timeframe for this study (participation in non-interventional observational study is allowed if there is no blood draw) Presence of severe malnutrition (weight-for-height z-score =-3SD median (per WHO published child growth standards) or any systemic disorder (cardiovascular, pulmonary, hepatic, renal, gastrointestinal, hematological, endocrine, immunological, dermatological, neurological, cancer or autoimmune disease) as determined by medical history and/or physical examination that would compromise the participant’s health or is likely to result in nonconformance to the protocol History of premature birth (<37 weeks gestation) and/or birth weight of <2.5 kg History of congenital abdominal disorders, intussusception, or abdominal surgery Prior receipt of rotavirus vaccine Known sensitivity or allergy to any components of the study vaccine Contraindications to any of the EPI/UIP vaccines History of anaphylactic reaction Major congenital or genetic defect Parents not able, available or willing to accept active weekly follow-up by the study staff Receipt of any immunoglobulin therapy and/or blood products History of chronic administration (defined as more than 14 days) of immunosuppressant medications, including corticosteroids (those on inhaled or topical steroids may be permitted to participate in the study) Any medical condition in the participant or parents that, in the judgment of the investigator, would interfere with or serves as a contraindication to protocol adherence or a parents’ ability to give informed consent Exclusion of nursing infants whose mothers are receiving immunosuppressive biologics

Design outcomes

Primary

MeasureTime frame
Laboratory confirmed cases of Severe Rotavirus Gastroenteritis - SVRGE (any strain);Serious adverse events (SAEs), including intussusception;Adverse Events - AEs >grade 2

Secondary

MeasureTime frame
Laboratory confirmed cases of VSRVGE - any strain;P-type specific laboratory confirmed cases of SRVGE and VSRGE;Laboratory confirmed cases of rotavirus gastroenteritis of any strain of any severity ;Laboratory confirmed cases of hospitalized for RVGE any severity;Incidence of SRVGE and VSRVGE per 100 children-years;Solicited local and systemic AEs ;SAEs, including intussusception;Anti-P2-VP8 IgA and IgG seroresponse rates by ELISA in assays using each of the three vaccine antigens ;Neutralizing antibody seroresponse rates to each of the three rotavirus strains from which the vaccine antigens are derived;Anti-P2-VP8 IgA and IgG geometric mean titers and geometric mean fold rises in ELISA assays using each of the three vaccine antigens

Countries

Ghana, Malawi, Zambia

Contacts

Public ContactElayna Oberman

Communications

eoberman@path.org2062853500

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Sep 19, 2026