In 2012, the World Health Assembly (WHA) endorsed the proposed Polio Endgame Strategy, which includes withdrawal of the Sabin-virus type 2 antigen-responsible for an estimated 95% of vaccine derived cases of polio by replacing the trivalent Oral Polio Vaccine (OPV) in the routine immunization schedule with a bivalent OPV that lacks the type 2 Sabin virus. Since the WHA resolution, all countries that were solely using OPV have either introduced Inactivated Polio Vaccine (IPV) into their routine immunization schedule or decided to introduce IPV but have been unable to secure supply. The global demand for IPV has therefore substantially increased in just a few years. Many initiatives are ongoing to meet the increasing demand for IPV. One potential approach is the reduction of the amount of antigen per vaccine dose. Therefore, to enhance the affordability, effectiveness and accessibility of IPV.
SIIPL has manufactured hexavalent combination vaccine containing diphtheria, tetanus, pertussis, hepatitis B, Haemophilus influenzae type b and a reduced dose of three IPV antigens.
Based on available published data, reduction of the antigen content of each of the three poliovirus types in IPV is feasible, without substantially compromising the immunogenicity of the vaccine. Advantages of a reduction in antigen content are two-fold: increased availability of IPV and reduced cost, both of major importance for the global eradication programme.
Who can participate
Age range
6 Weeks – 8 Weeks
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Male or female infants aged 6-8 weeks at the time of first vaccination.
* Infants with good health, as determined by the medical history, physical examination and clinical judgment of the Investigator.
* Informed consent form signed by at least one parent.
* Infants born at full term pregnancy (≥ 37 weeks).
* Infants with weight-for-length z-score ≥ -2 standard deviation (SD) at the time of enrolment.
* Willingness of subjects' parent to comply with the requirements of the protocol.
Exclusion Criteria:
* History of diphtheria/ tetanus/ pertussis/ hepatitis B/ Haemophilus Influenzae type b/ poliomyelitis infection(s).
* Presence of fever ≥ 38°C/ 100.4°F.
* Acute illness of moderate to severe intensity according to the clinical judgment of the investigator .
* Receipt of antibiotics in the past 3 days
* Previous vaccination or planned receipt of any vaccine against diphtheria, tetanus, pertussis, hepatitis B (except birth dose), poliomyelitis (except OPV birth dose) or Haemophilus Influenzae type b infection apart from trial vaccines during the study period.
* Administration of any vaccine (except OPV during government immunization campaign) in the 4 weeks preceding the first trial vaccination.
* History of major congenital defects or illness that require medical therapy, as determined by medical history or clinical assessment.
* History of any clinically significant chronic disease that in the opinion of the Investigator, might interfere with the evalu…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Non-inferiority of SIIPL reduced IPV hexavalent vaccine in comparison with SIIPL HEXASIIL® vaccine.
Timeframe: 28 days post completion of 3-dose primary vaccination series in infants.