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CompletedNCT06101173Updated Dec 4, 2024

A Study to Evaluate the Safety and Immunogenicity of Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) in Healthy Adults

A Phase 1 interventional study of Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio) and Inactivated poliomyelitis vaccine (IPOL) in Poliomyelitis, sponsored by CanSino Biologics Inc.. Completed at 2 sites in Australia. Open to participants aged 18 Years to 54 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-04.

Sponsored by CanSino Biologics Inc. · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
72
Allocation
Randomized
Ages
18 Years to 54 Years
Sex
All
01

Study summary

This is a randomized, observer-blind, positive-controlled study. There will be 3 treatment groups, in each treatment group, participants will be randomly assigned to receive either investigational vaccine (Low-adjuvant dose VLP-Polio, Medium dose VLP-Polio, or High dose VLP-Polio that are defined as Dose A, Dose M, and Dose H, respectively) or control vaccine in a ratio of 3:1 in each group. Distribution of participant's gender should be balanced in each group.

02

Conditions studied

  • Poliomyelitis

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Keywords

  • Vaccine
  • Trivalent
  • Immunogenicity
  • Safety
  • ≥18 years
03

In context

Poliomyelitis

274 studies on the registry are indexed under Poliomyelitis; 18 are open to participants now.

This study's enrollment of 72 is below the median of 476 across 249 interventional studies indexed under Poliomyelitis.

Browse Poliomyelitis studies →

Lead sponsor

CanSino Biologics Inc. is the lead sponsor of 41 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 54 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male and female volunteers aged 18 to 54 years at time of screening.
  • Participants who can understand and comply with the study procedures, understand the risks involved in the study, and provide written .
  • Healthy or in stable health participants with pre-existing, stable, well-controlled disease, defined as mild disease or medical condition not requiring medical therapy or not requiring a change in medical therapy due to worsening of disease during the 6 months before enrollment may be enrolled at the discretion of the investigator.
  • Female participants of must have a negative pregnancy test at screening and before the administration of vaccine and have been using/ agree to use an adequate form of 30 days prior to screening until 180 days post administration.
  • Male participants must agree to use adequate contraception 30 days prior to screening until 180 days after the vaccination.

Exclusion criteria

Exclusion Criteria:

  • Tympanic temperature >37.4°C.
  • Evidence of excessive alcohol or drug abuse.
  • Have received any polio vaccines within 6 months prior to screening.
  • History of severe allergic reaction (e.g., anaphylaxis) to any component of the vaccine.
  • Pregnant or lactating at screening or planning to become pregnant (self or partner) at any time during the study, including the follow-up period.
  • History of epilepsy or convulsions.
  • Have developmental cognitive disability, dementia, or intellectual disabilities.
  • Immune deficiency or immune suppressive treatment or auto-immune disease. For , a prednisone dose of \<20 mg/day or equivalent is allowed. Inhaled and topical corticosteroids are allowed.
  • Current diagnosis of polio or history of polio infection.
  • Positive for , or .
  • Positive for COVID-19 test.
  • Bleeding disorders or the usage of anticoagulants.
  • Have received any other immunizations within 14 days prior to screening.
  • Suffering from serious chronic disease or the disease is in progress and cannot be controlled, such as thyroid diseases (excluding thyroid nodules).
  • Have received blood products within the past 3 months or plan to receive during the study period.
  • Participate in other studies within 30 days (\<30 days) before and/or during the study period.
  • Abnormal safety laboratory parameters during the screening window that are as per the judgement of the investigator.
  • Any other factors that might interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participants to participate, in the opinion of the treating investigator.
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
72 participants (actual)

Study arms

  • Experimental
    Experimental vaccine group A, Low dose, Intramuscular injection (IM)

    1 dose of Low-adjuvant dose VLP-Polio vaccine on Visit 1

    Biological: Recombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio)

  • Active comparator
    Control vaccine group A, IM

    1 dose of IPOL vaccine on Visit 1

    Biological: Inactivated poliomyelitis vaccine (IPOL)

  • Experimental
    Experimental vaccine group B, Medium dose, Intramuscular injection (IM)

    1 dose of Medium dose VLP-Polio vaccine on Visit 1

    Biological: VLP-Polio

  • Active comparator
    Control vaccine group B, IM

    1 dose of IPOL vaccine on Visit 1

    Biological: IPOL

  • Experimental
    Experimental vaccine group C, High dose, Intramuscular injection (IM)

    1 dose of High dose VLP-Polio vaccine on Visit 1

    Biological: VLP-Polio

  • Active comparator
    Control vaccine group C, IM

    1 dose of IPOL vaccine on Visit 1

    Biological: IPOL

Interventions

  • BiologicalRecombinant Trivalent Poliomyelitis Vaccine (Sf-RVN Cell) (VLP-Polio)

    1 dose of VLP-Polio vaccine (0.5ml) on Visit 1

  • BiologicalInactivated poliomyelitis vaccine (IPOL)

    1 dose of IPOL vaccine (0.5ml) on Visit 1

  • BiologicalVLP-Polio

    1 dose of VLP-Polio vaccine (0.5ml) on Visit 1

  • BiologicalIPOL

    1 dose of IPOL vaccine (0.5ml) on Visit 1

  • BiologicalVLP-Polio

    1 dose of VLP-Polio vaccine (0.5ml) on Visit 1

  • BiologicalIPOL

    1 dose of IPOL vaccine (0.5ml) on Visit 1

06

What researchers measure

Primary outcomes

  1. Occurrence of solicited adverse reactions (AEs) within 7 days post vaccination.

    Time frame: Within 7 days post vaccination

Secondary outcomes

  1. Occurrence of unsolicited AEs within 28 days post-vaccination.

    Time frame: Within 28 days post-vaccination

  2. Occurrence of solicited AEs within 30 mins post-vaccination.

    Time frame: Within 30 mins post-vaccination

  3. Occurrence of abnormal safety laboratory parameters on Day 3, Day 8.

    Time frame: Day 3, Day 8 post-vaccination

  4. Occurrence of serious adverse events (SAEs) during the study period.

    Time frame: Through study completion, an average of 6 months

  5. Geometric mean titer (GMT) of neutralizing antibodies against poliovirus type 1, 2, and 3 on Day 1 before vaccination and Day 29 and Day 180 after the vaccination.

    Time frame: Day 1 before vaccination and Day 29 and Day 180 after the vaccination

  6. Geometric mean fold increase (GMI) of neutralizing antibodies against poliovirus type 1, 2, and 3 on Day 1 before vaccination and Day 29 and Day 180 after the vaccination.

    Time frame: Day 1 before vaccination and Day 29 and Day 180 after the vaccination

  7. Seroconversion rate of neutralizing antibodies against poliovirus type 1, 2, and 3 on Day 1 before vaccination and Day 29 and Day 180 after the vaccination.

    Time frame: Day 1 before vaccination and Day 29 and Day 180 after the vaccination

07

Study locations

2 sites
  • Nucleus Network Pty Ltd
    Geelong, Victoria, Australia
  • Nucleus Network Pty Ltd
    Melbourne, Victoria, Australia
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 4, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06101173
Collaborators
Novotech (Australia) Pty Limited
Responsible party
Sponsor
First posted
Oct 26, 2023
Start date
Jan 15, 2024
Primary completion
Mar 15, 2024
Completion
Sep 11, 2024
Last update
Dec 4, 2024

Study contacts

Christina Chang, Dr
principal investigator · Nucleus Network Pty Ltd.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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