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Study of BBIL's ROTAVAC® and ROTAVAC 5CM Vaccines in Zambia

An Open-label, Randomized, Controlled, Single Centre, Phase IIb Study to Assess the Immunogenicity, Reactogenicity and Safety of Three Live Oral Rotavirus Vaccines, ROTAVAC® , ROTAVAC 5CM and Rotarix® in Healthy Zambian Infants

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03602053
Acronym
ROTAVAC
Enrollment
450
Registered
2018-07-26
Start date
2019-01-22
Completion date
2019-10-04
Last updated
2020-12-19

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

Conditions

Diarrhea, Diarrhea Rotavirus

Keywords

diarrhea, Rotavirus, ROTAVAC, Rotavirus vaccine

Brief summary

The study is being conducted to evaluate and compare the immunogenicity of ROTAVAC® and ROTAVAC 5D 28 days after the last dose of the vaccine, when administered to infants in a three-dose schedule at 6, 10 and 14 weeks of age. The study will also assess the reactogenicity of the vaccine 7 days after each vaccination and safety from first vaccination up to 4 weeks after the last vaccination with ROTAVAC® and ROTAVAC 5D, and of Rotarix® when administered to infants in a two-dose schedule at 6 and 10 weeks of age.

Detailed description

This study is designed as a Phase IIb, single center, randomized, controlled, open label study with 3 groups of infants (n=150 per group) receiving either three doses of ROTAVAC® three doses of ROTAVAC 5D or two doses of Rotarix®. 450 participants will be randomized (1:1:1) to receive ROTAVAC®, ROTAVAC 5D or Rotarix®. The three doses of ROTAVAC® and ROTAVAC 5D will be administered at 6, 10 and 14 weeks of age whereas two doses of Rotarix® will be administered at 6 and 10 weeks of age. All vaccines will be administered concomitantly with EPI vaccines including Diphtheria, Tetanus, Pertussis, Haemophilus influenzae type b and Hepatitis B vaccine (DTwP-Hib-HepB), Pneumococcal conjugate vaccine and OPV at 6, 10 and 14 weeks and IPV at week 14 (when switched to in Zambia). The participants will be monitored for 30 minutes following vaccine administration for immediate adverse events. A blood sample will be obtained from all the participating infants before first vaccination and four weeks after the last vaccine dose. This would mean that the blood sample will be collected at approximately 14 weeks of age for infants in the Rotarix® arm and 18 weeks for infants in the ROTAVAC® groups. Enhanced passive/Active surveillance for vaccine reactogenicity (solicited reactions) over the 7-day period after each vaccination will be conducted on all infants. In addition, surveillance for unsolicited AEs, SAEs including intussusception will be carried out over the period between first vaccination and four weeks after the last vaccination on all infants. The study will compare the immunogenicity of the two formulations of ROTAVAC® i.e. ROTAVAC® vs. ROTAVAC 5D and will descriptively analyze the immune response to Rotarix®. Primary immunogenicity analysis of all samples will be based on a validated ELISA which uses strain WC3 as a substrate. A subset of the samples (50 pairs/arms) collected will also be tested by a validated ELISA which uses strain 89-12 (G1P8 virus) as a substrate. This trial will generate immunogenicity and safety data on ROTAVAC® and ROTAVAC 5D outside of India. Presentation of data to Zambian Ministry of Health, WHO and in peer reviewed open access publications will be key audiences targeted for communication of results.

Interventions

BIOLOGICALROTAVAC®

0.5 ml of the vaccine will be administered orally thrice at 6, 10 and 14 weeks of age.

BIOLOGICALROTAVAC 5D

0.5 ml of the vaccine will be administered orally thrice at 6, 10 and 14 weeks of age.

BIOLOGICALRotarix®

1.5 ml of the liquid vaccine will be administered orally twice at 6 and 10 weeks of age.

Sponsors

PATH
CollaboratorOTHER
Christian Medical College, Vellore, India
CollaboratorOTHER
Children's Hospital Medical Center, Cincinnati
CollaboratorOTHER
Bharat Biotech International Limited
CollaboratorINDUSTRY
Centre for Infectious Disease Research in Zambia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

Phase IIb, single center, randomized, controlled, open label study

Eligibility

Sex/Gender
ALL
Age
6 Weeks to 8 Weeks
Healthy volunteers
Yes

Inclusion criteria

1. Healthy infant as established by medical history and clinical examination before entering the study. 2. Age: 6-8 weeks (42-56 days, both days inclusive) confirmed by Immunization Record. 3. Infants received age-appropriate EPI vaccines till enrolment. 4. Ability and willingness to provide informed consent as per local consenting procedures. 5. Parent can be contacted on phone and confirms intention to remain in the study area with the participant during the study period.

Exclusion criteria

1. Presence of diarrhea or vomiting in the previous 72 hours or on the day of enrolment (temporary exclusion). 2. Presence of fever on the day of enrolment (temporary exclusion). 3. Acute disease at the time of enrolment (temporary exclusion). 4. Concurrent participation in another clinical trial throughout the entire timeframe of this study. 5. Presence of severe malnutrition (weight-for-height z-score \< -3SD median). 6. 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 which would compromise the child's health or is likely to result in non-conformance to the protocol. 7. History of congenital abdominal disorders, intussusception, abdominal surgery 8. Known or suspected impairment of immunological function based on medical history and physical examination. 9. Prior receipt or intent to receive rotavirus and other age specified EPI vaccines outside of the study center and during study participation. 10. A known sensitivity or allergy to any component of the study vaccine. 11. Clinically detectable significant congenital or genetic defect. 12. History of persistent diarrhea (defined as diarrhea more than 14 days). 13. Participant's parents not able, available or willing to accept active follow-up by the study staff. 14. Has received any immunoglobulin therapy and/or blood products since birth or planned administration during the study period. 15. History of chronic administration (defined as more than 14 days) of immunosuppressants including corticosteroids. Infants on inhaled or topical steroids may be permitted to participate in the study. 16. History of any neurologic disorders or seizures. 17. Any medical condition in the parents/infants that, in the judgment of the investigator, would interfere with or serves as a contraindication to protocol adherence or a participant's parent's/legally acceptable representative's ability to give informed consent. 18. Participant is a direct descendant (child or grandchild) of any person employed by the Sponsor, the CRO, the PI or study site personnel.

Design outcomes

Primary

MeasureTime frameDescription
Geometric Mean Concentration Using WC3 as the Viral Lysate28 day after last dose of the study vaccineGMC of serum anti-rotavirus IgA antibodies as measured by enzyme linked immunosorbent assay (ELISA) using WC3 (heterologous to vaccine strain) as the viral lysate. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC 5D® and ROTAVAC®.

Secondary

MeasureTime frameDescription
Unsolicited Adverse EventsFrom first vaccination through 4 weeks after the last vaccination.Percentage of participants reporting unsolicited AEs at a rate \>5%.
Seroconversion Rate in Each of the Three Arms as Measured by ELISA Using WC3 as the Viral Lysate28 days after last dose of study vaccine.Seroconversion is defined as a post-vaccination serum anti-rotavirus IgA antibody concentration of at least 20 U/mL if a baseline concentration is \< 20 U/mL or a post-vaccination serum anti-rotavirus IgA antibody concentration of ≥ 2-fold baseline level if a baseline concentration is ≥ 20 U/mL. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.
Seropositivity Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate28 days after last dose of study vaccineSeropositivity is defined as serum anti-rotavirus IgA antibody concentration ≥ 20 U/mL. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.
Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate28 days after last dose of study vaccineSeroresponse will be assessed as a four-fold, three-fold and two- fold rise in antibody concentration from baseline. Seroresponse will be assessed as a four-fold, three-fold and two-fold rise in antibody concentration from baseline. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.
Geometric Mean Fold Rise (GMFR) in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateAt 28 days after last dose of study vaccine in reference to baseline.GMFR in each of the ROTAVAC 5D®, ROTAVAC® and Rotarix® vaccine arms. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.
Immediate Adverse Eventswithin 30 minutes' post-vaccination.Percentage of participants reporting immediate adverse events after each vaccination
Solicited Adverse Events7 day period after each vaccination.Percentage of participants reporting solicited post-vaccination reactogenicity (fever, diarrhea, vomiting, decreased appetite, irritability, decreased activity level)
Serious Adverse EventsFrom first vaccination through 4 weeks after the last vaccination of each study participant. ImmunogenicityPercentage of participants reporting SAEs

Other

MeasureTime frameDescription
Seropositivity Using Strain 89-12 as the Viral Lysateat baseline and 28 days after last dose of study vaccineSeropositivity rate in three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.
Geometric Mean Fold Rise (GMFR) Using Strain 89-12 as the Viral Lysateat 28 days after last dose of study vaccine in reference to baseline.GMFR in the three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.
Geometric Mean Concentrations Using Strain 89-12 as the Viral Lysate28 days after the last dose of a study vaccine.GMCs of serum anti-rotavirus IgA antibodies in each of the three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.
Seroconversion Using Strain 89-12 as the Viral Lysate28 days after the last dose of a study vaccine.Seroconversion rate in three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.

Countries

Zambia

Participant flow

Participants by arm

ArmCount
ROTAVAC 5D®
ROTAVAC 5D® administered at 6, 10 and 14 weeks of age.
150
ROTAVAC®
ROTAVAC® administered at 6, 10 and 14 weeks of age.
150
Rotarix®
Rotarix® administered at 6 and 10 weeks of age.
150
Total450

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLost to Follow-up560
Overall Studymigration230
Overall StudyOther100
Overall StudyPhysician Decision100
Overall StudyProtocol Violation304
Overall StudyWithdrawal by Subject797

Baseline characteristics

CharacteristicROTAVAC 5D®TotalRotarix®ROTAVAC®
Age, Continuous6.56 weeks
STANDARD_DEVIATION 0.477
6.55 weeks
STANDARD_DEVIATION 0.475
6.60 weeks
STANDARD_DEVIATION 0.491
6.50 weeks
STANDARD_DEVIATION 0.473
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
150 Participants450 Participants150 Participants150 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants0 Participants
Region of Enrollment
Zambia
150 participants450 participants150 participants150 participants
Sex: Female, Male
Female
66 Participants209 Participants66 Participants77 Participants
Sex: Female, Male
Male
84 Participants241 Participants84 Participants73 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1500 / 1500 / 150
other
Total, other adverse events
93 / 13795 / 13981 / 142
serious
Total, serious adverse events
2 / 1371 / 1393 / 142

Outcome results

Primary

Geometric Mean Concentration Using WC3 as the Viral Lysate

GMC of serum anti-rotavirus IgA antibodies as measured by enzyme linked immunosorbent assay (ELISA) using WC3 (heterologous to vaccine strain) as the viral lysate. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC 5D® and ROTAVAC®.

Time frame: 28 day after last dose of the study vaccine

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (GEOMETRIC_MEAN)
ROTAVAC 5D®Geometric Mean Concentration Using WC3 as the Viral Lysate18.1 U/ml
ROTAVAC®Geometric Mean Concentration Using WC3 as the Viral Lysate14.0 U/ml
95% CI: [0.862, 1.924]t-test, 2 sided
Secondary

Geometric Mean Fold Rise (GMFR) in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate

GMFR in each of the ROTAVAC 5D®, ROTAVAC® and Rotarix® vaccine arms. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.

Time frame: At 28 days after last dose of study vaccine in reference to baseline.

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (GEOMETRIC_MEAN)
ROTAVAC 5D®Geometric Mean Fold Rise (GMFR) in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate4.6 Fold rise
ROTAVAC®Geometric Mean Fold Rise (GMFR) in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate3.6 Fold rise
Rotarix®Geometric Mean Fold Rise (GMFR) in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate3.8 Fold rise
Secondary

Immediate Adverse Events

Percentage of participants reporting immediate adverse events after each vaccination

Time frame: within 30 minutes' post-vaccination.

Population: The analysis was performed on Safety Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Immediate Adverse Events1 Participants
ROTAVAC®Immediate Adverse Events0 Participants
Rotarix®Immediate Adverse Events1 Participants
Secondary

Serious Adverse Events

Percentage of participants reporting SAEs

Time frame: From first vaccination through 4 weeks after the last vaccination of each study participant. Immunogenicity

Population: The analysis was performed on Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Serious Adverse EventsAny SAEs2 Participants
ROTAVAC 5D®Serious Adverse EventsDiarrhoea1 Participants
ROTAVAC 5D®Serious Adverse EventsBronchiolitis1 Participants
ROTAVAC 5D®Serious Adverse EventsSepsis0 Participants
ROTAVAC®Serious Adverse EventsSepsis1 Participants
ROTAVAC®Serious Adverse EventsAny SAEs1 Participants
ROTAVAC®Serious Adverse EventsBronchiolitis0 Participants
ROTAVAC®Serious Adverse EventsDiarrhoea0 Participants
Rotarix®Serious Adverse EventsSepsis1 Participants
Rotarix®Serious Adverse EventsDiarrhoea0 Participants
Rotarix®Serious Adverse EventsBronchiolitis2 Participants
Rotarix®Serious Adverse EventsAny SAEs3 Participants
Secondary

Seroconversion Rate in Each of the Three Arms as Measured by ELISA Using WC3 as the Viral Lysate

Seroconversion is defined as a post-vaccination serum anti-rotavirus IgA antibody concentration of at least 20 U/mL if a baseline concentration is \< 20 U/mL or a post-vaccination serum anti-rotavirus IgA antibody concentration of ≥ 2-fold baseline level if a baseline concentration is ≥ 20 U/mL. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.

Time frame: 28 days after last dose of study vaccine.

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Seroconversion Rate in Each of the Three Arms as Measured by ELISA Using WC3 as the Viral Lysate52 Participants
ROTAVAC®Seroconversion Rate in Each of the Three Arms as Measured by ELISA Using WC3 as the Viral Lysate41 Participants
Rotarix®Seroconversion Rate in Each of the Three Arms as Measured by ELISA Using WC3 as the Viral Lysate50 Participants
Secondary

Seropositivity Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate

Seropositivity is defined as serum anti-rotavirus IgA antibody concentration ≥ 20 U/mL. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.

Time frame: 28 days after last dose of study vaccine

Population: Analysis was performed on the Total Vaccinated Cohort.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Seropositivity Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate54 Participants
ROTAVAC®Seropositivity Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate42 Participants
Rotarix®Seropositivity Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate52 Participants
Secondary

Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral Lysate

Seroresponse will be assessed as a four-fold, three-fold and two- fold rise in antibody concentration from baseline. Seroresponse will be assessed as a four-fold, three-fold and two-fold rise in antibody concentration from baseline. WC3 strain of rotavirus used in the ELISA assay was heterologous to the 116E strain contained in the vaccines ROTAVAC® and ROTAVAC 5D®.

Time frame: 28 days after last dose of study vaccine

Population: The analysis was performed on Per Protocol Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Three-fold rise71 Participants
ROTAVAC 5D®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Four-fold rise61 Participants
ROTAVAC 5D®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Two-fold rise79 Participants
ROTAVAC®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Two-fold rise65 Participants
ROTAVAC®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Three-fold rise55 Participants
ROTAVAC®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Four-fold rise49 Participants
Rotarix®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Two-fold rise74 Participants
Rotarix®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Four-fold rise58 Participants
Rotarix®Seroresponse Rate in Each of the Three Vaccine Arms as Measured by ELISA Using WC3 as the Viral LysateSeroresponse rate- Three-fold rise66 Participants
Secondary

Solicited Adverse Events

Percentage of participants reporting solicited post-vaccination reactogenicity (fever, diarrhea, vomiting, decreased appetite, irritability, decreased activity level)

Time frame: 7 day period after each vaccination.

Population: The analysis was performed on Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Solicited Adverse EventsIrritability105 Participants
ROTAVAC 5D®Solicited Adverse EventsDecreased activity level62 Participants
ROTAVAC 5D®Solicited Adverse EventsDiarrhea15 Participants
ROTAVAC 5D®Solicited Adverse EventsFever110 Participants
ROTAVAC 5D®Solicited Adverse EventsVomiting14 Participants
ROTAVAC 5D®Solicited Adverse EventsDecreased appetite53 Participants
ROTAVAC 5D®Solicited Adverse EventsAny Solicited AEs138 Participants
ROTAVAC®Solicited Adverse EventsDecreased appetite44 Participants
ROTAVAC®Solicited Adverse EventsDecreased activity level66 Participants
ROTAVAC®Solicited Adverse EventsAny Solicited AEs136 Participants
ROTAVAC®Solicited Adverse EventsIrritability109 Participants
ROTAVAC®Solicited Adverse EventsFever109 Participants
ROTAVAC®Solicited Adverse EventsVomiting14 Participants
ROTAVAC®Solicited Adverse EventsDiarrhea11 Participants
Rotarix®Solicited Adverse EventsIrritability101 Participants
Rotarix®Solicited Adverse EventsAny Solicited AEs129 Participants
Rotarix®Solicited Adverse EventsFever100 Participants
Rotarix®Solicited Adverse EventsVomiting15 Participants
Rotarix®Solicited Adverse EventsDecreased appetite44 Participants
Rotarix®Solicited Adverse EventsDecreased activity level55 Participants
Rotarix®Solicited Adverse EventsDiarrhea8 Participants
Secondary

Unsolicited Adverse Events

Percentage of participants reporting unsolicited AEs at a rate \>5%.

Time frame: From first vaccination through 4 weeks after the last vaccination.

Population: The analysis was performed on Safety Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Unsolicited Adverse EventsRhinitis21 Participants
ROTAVAC 5D®Unsolicited Adverse EventsConjunctivitis10 Participants
ROTAVAC 5D®Unsolicited Adverse EventsAny Unsolicited AEs93 Participants
ROTAVAC 5D®Unsolicited Adverse EventsDiarrhoea18 Participants
ROTAVAC 5D®Unsolicited Adverse EventsUpper respiratory tract infection52 Participants
ROTAVAC®Unsolicited Adverse EventsAny Unsolicited AEs95 Participants
ROTAVAC®Unsolicited Adverse EventsRhinitis12 Participants
ROTAVAC®Unsolicited Adverse EventsUpper respiratory tract infection46 Participants
ROTAVAC®Unsolicited Adverse EventsConjunctivitis10 Participants
ROTAVAC®Unsolicited Adverse EventsDiarrhoea17 Participants
Rotarix®Unsolicited Adverse EventsDiarrhoea11 Participants
Rotarix®Unsolicited Adverse EventsConjunctivitis6 Participants
Rotarix®Unsolicited Adverse EventsRhinitis10 Participants
Rotarix®Unsolicited Adverse EventsAny Unsolicited AEs81 Participants
Rotarix®Unsolicited Adverse EventsUpper respiratory tract infection39 Participants
Other Pre-specified

Geometric Mean Concentrations Using Strain 89-12 as the Viral Lysate

GMCs of serum anti-rotavirus IgA antibodies in each of the three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.

Time frame: 28 days after the last dose of a study vaccine.

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (GEOMETRIC_MEAN)
ROTAVAC 5D®Geometric Mean Concentrations Using Strain 89-12 as the Viral Lysate20.6 Au/ml
ROTAVAC®Geometric Mean Concentrations Using Strain 89-12 as the Viral Lysate19.2 Au/ml
Rotarix®Geometric Mean Concentrations Using Strain 89-12 as the Viral Lysate38.0 Au/ml
Other Pre-specified

Geometric Mean Fold Rise (GMFR) Using Strain 89-12 as the Viral Lysate

GMFR in the three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.

Time frame: at 28 days after last dose of study vaccine in reference to baseline.

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (GEOMETRIC_MEAN)
ROTAVAC 5D®Geometric Mean Fold Rise (GMFR) Using Strain 89-12 as the Viral Lysate4.8 Fold rise
ROTAVAC®Geometric Mean Fold Rise (GMFR) Using Strain 89-12 as the Viral Lysate4.9 Fold rise
Rotarix®Geometric Mean Fold Rise (GMFR) Using Strain 89-12 as the Viral Lysate8.8 Fold rise
Other Pre-specified

Seroconversion Using Strain 89-12 as the Viral Lysate

Seroconversion rate in three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.

Time frame: 28 days after the last dose of a study vaccine.

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Seroconversion Using Strain 89-12 as the Viral Lysate24 Participants
ROTAVAC®Seroconversion Using Strain 89-12 as the Viral Lysate18 Participants
Rotarix®Seroconversion Using Strain 89-12 as the Viral Lysate26 Participants
Other Pre-specified

Seropositivity Using Strain 89-12 as the Viral Lysate

Seropositivity rate in three vaccine arms. 89-12 strain of Rotavirus used in the ELISA assay was homologous to Rotarix® and was heterologous to the strain contained in ROTAVAC® and ROTAVAC 5D®.

Time frame: at baseline and 28 days after last dose of study vaccine

Population: The analysis was performed on Per Protocol Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ROTAVAC 5D®Seropositivity Using Strain 89-12 as the Viral Lysate25 Participants
ROTAVAC®Seropositivity Using Strain 89-12 as the Viral Lysate18 Participants
Rotarix®Seropositivity Using Strain 89-12 as the Viral Lysate27 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026