A Study to Evaluate the Safety and Immunogenicity of VLP-Polio in Infants and Toddlers

NCT ID: NCT06577298

Last Updated: 2025-07-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

480 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-12-19

Study Completion Date

2026-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is a phase I/II randomized, double-blind, and positive-controlled study. Participants in the phase I toddler group will receive 1 dose of either high dose VLP-Polio (Dose H) or control vaccine in a ratio of 3:1. The phase I infant cohort will have 4 arms randomly assigned to receive either investigational vaccine (Low-adjuvant dose VLP-Polio, Medium dose VLP-Polio, or High dose VLP-Polio or control vaccine in a ratio of 3:1. Phase II infant cohort will have 4 arms randomly assigned to receive either investigational vaccine (Low-adjuvant dose VLP-Polio, Medium dose VLP-Polio, or High dose VLP-Polio or control vaccine in a ratio of 3:1. Each infant participant will be administrated 3 doses of the assigned vaccine with 28 days apart, and the booster dose will be given when the infant is 12-18 months old. Enrollment of Phase I and Phase II will be staggered in descending order of age group but ascending order of dosing levels. Blood and mucosal samples will be collected for immunogenicity evaluation over the time course of the study.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Poliomyelitis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Phase I, Toddler Group A, Experimental vaccine, High dose, IM

One dose of VLP-Polio on Day 0

Group Type EXPERIMENTAL

VLP-Polio high dose

Intervention Type BIOLOGICAL

1 dose of VLP-Polio vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Toddler Group A, Control vaccine, IM

One dose of IPV control on Day 0

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group B, Experimental vaccine, Low-adjuvant dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio) low adjuvant dose

Intervention Type BIOLOGICAL

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group B, Control vaccine, IM

4 dose of IPV on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group C, Experimental vaccine, Medium dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

VLP-Polio medium dose

Intervention Type BIOLOGICAL

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group C, Control vaccine, IM

4 dose of IPV on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group D, Experimental vaccine, High dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

VLP-Polio high dose

Intervention Type BIOLOGICAL

1 dose of VLP-Polio vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase I, Infant Group D, Control vaccine, IM

4 dose of IPV on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group E, Experimental vaccine, Low-adjuvant dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio) low adjuvant dose

Intervention Type BIOLOGICAL

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group E, Control vaccine, IM

4 dose of IPV vaccine on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group F, Experimental vaccine, Medium dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

VLP-Polio medium dose

Intervention Type BIOLOGICAL

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group F, Control vaccine, IM

4 dose of IPV on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group G, Experimental vaccine, High dose, IM

4 dose of VLP-Polio on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type EXPERIMENTAL

VLP-Polio high dose

Intervention Type BIOLOGICAL

1 dose of VLP-Polio vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Phase II, Infant Group G, Control vaccine, IM

4 dose of IPV on Day 0, Day 28, Day 56 and Month 12-18 of age

Group Type ACTIVE_COMPARATOR

Vaccine Poliomyelitis Inactivated (IPV)

Intervention Type BIOLOGICAL

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio) low adjuvant dose

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Intervention Type BIOLOGICAL

VLP-Polio medium dose

4 doses of VLP-Polio vaccine (0.5ml) at 2, 3, 4 months and 12-18 months of age for infants

Intervention Type BIOLOGICAL

VLP-Polio high dose

1 dose of VLP-Polio vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Intervention Type BIOLOGICAL

Vaccine Poliomyelitis Inactivated (IPV)

1 dose of IPV vaccine (0.5ml) on day 0 for toddlers, 4 doses at 2, 3, 4 months and 12-18 months of age for infants

Intervention Type BIOLOGICAL

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Healthy toddlers aged 12-18 months at the time of screening, and have completed primary immunization of polio vaccine according to the national government program in the first year of life.
* Healthy infants aged 6 weeks to 2 months (42 to 98 days, with the day of birth considered day of life 1), and who have not received any polio vaccines.
* Able to obtain written informed consent from parent(s) or legal guardian(s).
* Participants and their parents or legal guardian(s) can comply with trial procedures, are available for the duration of follow-up, and have a suitable telephone contact available.

* Other reasons for exclusion considered by the investigating doctor .

Exclusion Criteria

* Current polio disease or history of polio disease.
* Toddlers who have an interval of less than 5 months since their last dose of the polio vaccine.
* Infants born at \< 37 weeks of gestation.
* Children with a birth weight \< 2500g and a body weight \< 3500g at the time of enrollment.
* Body temperature ≥37.5°C (the visit may be rescheduled when this criterion is met).
* Have congenital malformations or developmental disorders, genetic defects, severe malnutrition, etc.
* Any moderate or severe acute illness.
* Any abnormal vital signs.
* History of epilepsy, convulsions, or parent with congenital cognitive disability, dementia, or intellectual disabilities.
* Have received immunosuppressive treatment, cytotoxic treatment, glucocorticoid treatment, etc. (excluding local treatment, surface treatment of acute non-concurrent dermatitis, or spray treatment of allergic rhinitis).
* Received or plan to receive blood/plasma products or immunoglobulins throughout the study period or prior to study vaccination.
* History of serious adverse events and/or severe allergic reactions (e.g., systemic allergic reactions) to any component of the study vaccine.
* History of known disturbance of coagulation or blood disorder that could cause anemia or excess bleeding (e.g., thalassemia, coagulation factor deficiencies, severe anemia at birth).
* Immunocompromised individuals with known or suspected immunodeficiency as determined by medical history and/or physical examination (e.g., history of pancreatic, liver, spleen, kidney disease or history of resection).
* Administration of other vaccines within 7 days.
* Participation in other interventional studies within 28 days prior to screening and/or during study participation.
* Household member or sibling who has received or is scheduled to receive OPV in the previous 3 months until 5 weeks after the third dose of the primary immunization series.
* The participant is a direct descendant (child or grandchild) of any person employed by the Sponsor, the contract research organization (CRO), the investigator, or study site personnel.
* History or current evidence of any condition or therapy which might confound the results of the study, interfere with the participant's participation for the full duration of the study, indicate suspected diseases, or is not in the best interest of the participants to participate, in the opinion of the treating investigator.
* Family history of any medical conditions, that in the investigating doctor's opinion, could affect the trial outcomes.
* Any reason or condition the investigator considers sufficient to make a participant ineligible for participation in the study.


* Severe allergic reaction after the previous vaccination.
* Serious adverse events caused by the previous vaccination.
Minimum Eligible Age

6 Weeks

Maximum Eligible Age

18 Months

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

CanSino Biologics Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Nina Putri, Dr

Role: PRINCIPAL_INVESTIGATOR

Dr. Cipto Mangunkusumo Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Dr. Cipto Mangunkusumo Hospital

Jakarta, , Indonesia

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

Indonesia

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Xiaoyuan Zhao

Role: CONTACT

022-58213600-6051

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

CTP-VLP-002

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.