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Safety and Immunogenicity Study of Full Schedule (3-Dose SHAN6™) or SHAN6™- SHAN 5®- SHAN6™ Versus the Licensed Vaccine SHAN 5® With bOPV and IPV When Administered Per National Immunization Schedule in Healthy Kenyan Infants

Phase III, multi-center, randomized, active-controlled, open-label, three-arm, study in 690 infants who will receive a 3-dose primary series at 6, 10 and 14 weeks of age, of either 3-dose SHAN6™ or SHAN6™ – SHAN 5® + bOPV – SHAN6™ or SHAN 5® + bOPV – SHAN 5® + bOPV – SHAN 5® + bOPV + IPV, and a booster dose of either SHAN6™ or SHAN 5® + bOPV at 18 months of age

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
PACTR
Registry ID
PACTR202006580901172
Enrollment
690
Registered
2020-06-17
Start date
2020-08-24
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Bacterial infections and mycoses Paediatrics

Interventions

Group A1
Group A2
Group B1
Group B2
Group C1
Group C2

Sponsors

Sanofi Pasteur Europe
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Aged 42 to 56 days on the day of the first study visit. - Born at full term of pregnancy (= 37 weeks) and/or with a birth weight = 2.5 kg OR medically stable prematurely born infants (born after a gestation period of 27-36 weeks). - Infants who have received the birth dose of OPV and Bacille Calmette-Guérin vaccine (BCG) vaccine per Kenya NIS recommendations. - Participants and parent(s)/LAR are able to attend all scheduled visits and to comply with all study procedures.

Exclusion criteria

Exclusion criteria: - Participation at the time of study enrollment (or in the 4 weeks preceding the first trial vaccination) or planned participation during the present trial period in another clinical trial investigating a vaccine, drug, medical device, or medical procedure. - Receipt of any vaccine in the 4 weeks preceding the first trial vaccination or planned receipt of any vaccine in the 4 weeks following the last trial vaccination except for routine vaccinations included in the Kenyan NIS (eg., BCG) which may be received less than 4 weeks before study vaccine. - Previous vaccination against diphtheria, tetanus, pertussis, hepatitis B (except the dose of Hep B vaccine given at birth) diseases or Haemophilus influenzae type b infection, poliomyelitis (except the OPV) or rotavirus infection apart from trial vaccines in the four weeks following trial vaccination. - Receipt of immune globulins, blood or blood-derived products since birth. - Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy, such as anti-cancer chemotherapy or radiation therapy since birth; or long-term systemic corticosteroid therapy (prednisone or equivalent at >=0.5 mg/kg/day for more than 2 consecutive weeks since birth). - Known personal or maternal history of Human Immunodeficiency Virus (HIV), hepatitis B (HBsAg positive) or hepatitis C (HCV RNA positive). - Individuals with blood dyscrasias, leukemia, lymphoma of any type, or other malignant neoplasms affecting the bone marrow or lymphatic systems. - History of diphtheria, tetanus, pertussis, poliomyelitis, hepatitis B, Haemophilus influenzae type b, or rotavirus infection(s), confirmed either clinically, serologically, or microbiologically. - History of seizures, encephalopathy, or any evolving or suspected neurological condition. - History of intussusception. - Known systemic hypersensitivity to any of the vaccine components or history of a life-threatening reaction to the vaccines used in the trial or to a vaccine containing any of the same substances. - Known thrombocytopenia, as reported by the parent/legally acceptable representative contraindicating IM vaccination. - Bleeding disorder, or receipt of anticoagulants in the 3 weeks preceding inclusion, contraindicating intramuscular vaccination. - Chronic illness that, is at a stage where it might interfere with trial conduct or completion. - Moderate or severe acute illness/infection on the day of vaccination or febrile illness (axillary temperature = 38.0°C). A prospective participant should not be included in the study until the condition has resolved or the febrile event has subsided). - Receipt of oral or injectable antibiotic therapy within 72 hours prior to the first blood draw. - Identified as a natural or adopted child of the Investigator, relatives or employee with direct involvement in the proposed study. - Any condition which, in the opinion of the investigator, might interfere with the evaluation of the study objectives.

Design outcomes

Primary

MeasureTime frame
The first primary objective is to demonstrate the non-inferiority of SHAN6™ compared to the licensed control vaccines SHAN 5® (+ bOPV + IPV) with respect tothe adjusted Geometric Mean Concentration (aGMC) ratio for anti-pertussis toxoid (PT) and anti-fimbriae (FIM) for pertussis and seroprotection rates for all other antigens 28 days after a three-dose primary series (6, 10 and 14 weeks). ;If the first objective is reached, the second primary objective is to demonstrate the non-inferiority of mixed schedule administration of SHAN6™ and SHAN 5® (+ bOPV) compared to SHAN 5® (+ bOPV + IPV) as a three dose primary series with respect to the aGMC ratio for anti-PT and anti-FIM for pertussis and seroprotection rates for all other antigens 28 days after a three-dose primary series.

Secondary

MeasureTime frame
Immunogenicity • To describe the immunogenicity profile of SHAN6™ vaccine three dose series and that of the control vaccines SHAN 5® (+ bOPV + IPV). • To describe the immunogenicity profile of mixed schedule administration of SHAN6™ and SHAN 5® (+ bOPV). • To describe the immune response to co-administered ORV in terms of seroresponse (serum immunoglobulin [Ig]A anti-rotavirus antibody levels) in a randomized subset of subjects in each study group. • To describe the immune response to co-administered PCV in terms of serum antipneumococcal IgG for the 10 vaccine serotypes in a randomized subset of subjects in each study group. • To describe the immunogenicity profile, 28 days after the single booster dose of SHAN6™ or SHAN 5® (+ bOPV) in each study group.;Safety To describe the safety profile, 28 days after each and any dose of SHAN6™ vaccine and that of the control vaccines SHAN 5® (+ bOPV + IPV), following the primaryseries and booster vaccination.

Countries

Kenya

Contacts

Public ContactTirhani Maluleke

Sponsor Clinical Trial Application Regulatory Manager

Tirhani.maluleke@sanofi.com+27118475113

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Aug 9, 2026