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Influenza InfectionPhase 2NCT03784885

A Phase 2, Double-blind Study to Evaluate Intranasal Trivalent Influenza Virus Vaccine in Healthy Adult

A Phase 2 study testing AD07010 and Inactivated trivalent influenza vaccine in people with Influenza Infection, run by Advagene Biopharma Co. Ltd. at 1 site in Taiwan.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The objectives of this phase 2 study are to evaluate immunogenicity, safety and tolerability of AD07030, a trivalent influenza virus antigens vaccine, given intranasally in 2 doses in healthy adult volunteers. Read more about this study

Who is it for?
Ages 20 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Influenza Infection
What is being tested?
AD07010 and Inactivated trivalent influenza vaccine
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
345 participants
Where
1 siteTaiwan
Study dates
1 Sep 2017to 30 Oct 2018
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Adult male and female subjects aged between 20-70 (included) years.
  • Should be physically and mentally healthy and free of significant medical condition as determined by Medical history, Physical examination and Clinical judgment of the Investigator.
  • Negative urine β-human chorionic gonadotropin in women of childbearing potential (WOCBP; defined as women ≤ 50 years old of age or history of amenorrhea for ≤12 months) prior to administration of first dose of Investigational Product.
  • WOCBP and male subjects having female partners, who are WOCBP, should be protected by effective contraceptive method (e.g. oral contraceptive and condom, intra- uterine device and condom, diaphragm with spermicide and condom) throughout the study period.
  • Willing and able to give written informed consent prior to Screening and comply with study procedure.

Who cannot join

  • Received vaccination against influenza within 6 months prior to Screening.
  • Received any vaccination (other than influenza) within 28 days prior to Screening.
  • Has previously experienced anaphylaxis or a life-threatening reaction; or has history of allergy or hypersensitivity to egg proteins, chicken proteins, any of the components of Investigational Product, or other vaccine containing same substances.
  • History of influenza infection (confirmed either clinically, serologically or microbiologically) within the 6 months prior to administration of first dose of Investigational Product.
  • Had active allergic rhinitis within 28 days prior to administration of first dose of Investigational Product.
  • Has documented history of diarrhea within 28 days prior to administration of first dose of Investigational Product.
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  • Have used or been administered any intranasal medication or nasal topical treatment within 7 days prior to Screening.
  • Acute respiratory illness within 7 days prior to administration of first dose of Investigational Product.
  • Had administration of systemic antibiotics or antivirals within 7 days prior to Screening (excluding topical/external use of antibiotics).
  • Acute sinusitis or chronic sinusitis accompanying acute symptoms within 3 days prior to administration of first dose of Investigational Product.
  • With acute disease (defined as fever with body temperature >38.0°C), within 3 days prior to administration of first dose of Investigational Product.
  • Having any serious chronic illness, including but not limited to, cardiovascular, pulmonary, hepatic, metabolic, renal or any auto-immune disorders, at a stage that could interfere with trial conduct or completion.
  • Any confirmed or suspected immunosuppressive or immune-deficient condition, based on medical history and physical examination.
  • Documented history of Bell's palsy or neurological disorder.
  • Receive aspirin (Salicylate) anytime in the study from screening (Visit 1)
  • A positive test for HIV antibody
  • Receipt of any immunoglobulins and/or blood products within 3 months of study Screening.
  • Pregnant or breast-feeding women
  • Require extended long-term use of steroids including parenteral steroids or high dose inhaled steroids or have used within 28 days prior to Screening
  • Participated in any other clinical investigation or use of any investigational therapy other than AD07030, within 4 weeks (28 days) or 5 half-lives, whichever is longer, before Screening.
  • Unable to communicate reliably with the Investigator or unlikely to cooperate with the requirements of the study procedures or schedule, or other cases judged by the Investigator to be ineligible for participation in the study.
  • Other cases judged by the Investigator to be ineligible for participation in the study.

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • Advagene Biopharma

    Taipei, 104

Other trials in Taiwan

About this study

Official title: A Phase 2, Double-blind, Randomized Controlled Study to Evaluate Immunogenicity and Safety of Intranasal Trivalent Influenza Virus Vaccine in Healthy Adult V Olunteers

The objectives of this phase 2 study are to evaluate immunogenicity, safety and tolerability of AD07030, a trivalent influenza virus antigens vaccine, given intranasally in 2 doses in healthy adult volunteers.

Read the detailed description

This is a Phase 2 prospective, randomized controlled, double-blind, multi-center study to evaluate the immunogenicity, safety and tolerability of AD07030, a trivalent influenza virus antigens vaccine, given intranasally in healthy adult volunteers.

About 358 healthy subjects, meeting all the eligibility criteria will be enrolled into the study and randomized into 3 study groups (in 2:2:1 ratio) to receive either the study vaccine at one of the dose levels of adjuvant AD07010 (30μg or 45μg LTh(αK)) in combination with hemagglutinin (HA) antigens or to receive control vaccine consisting of HA antigens alone. The 3 study groups are as follows:

  • Group 1: 22.5μg HA with 30μg AD07010
  • Group 2: 22.5μg HA with 45μg AD07010
  • Group 3: 22.5μg HA alone Each subject will receive intranasal administration of 2 doses of IP (study or control vaccine) at same dosages, given 7 days apart on study Day 1 and Day 8. Solicited local and general AEs will be recorded after each vaccination in the subject's diary card for up to 7 days (the vaccine administration day and 6 days following it). Subjects will be followed up for monitoring of safety and immunogenicity for 180 days. AE and SAE and concomitant medication/vaccination will be collected throughout the study. There will be total of 6 study visits and a telephone call.
Being tested
AD07010, Inactivated trivalent influenza vaccine
Keywords
adjuvant, vaccine, mucosa, IgA, Escherichia coli Enterotoxin

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AD07010Biological

    Also called LTh(αK), Escherichia coli heat-labile enterotoxin

    A protein based adjuvant

  • Inactivated trivalent influenza vaccineBiological

    Inactivated trivalent seasonal influenza vaccine

Study groups in NCT03784885
Study groupRoleWhat they receive
30 μg of AD07010ExperimentalAll subjects in this group received 2 doses of 22.2 μg HA antigens from inactivated trivalent influenza vaccine in 30 μg of AD07010
Receives: Biological: AD07010; Biological: Inactivated trivalent influenza vaccine
45 μg of AD07010ExperimentalAll subjects in this group received 2 doses of 22.2 μg HA antigens from inactivated trivalent influenza vaccine in 45 μg of AD07010
Receives: Biological: AD07010; Biological: Inactivated trivalent influenza vaccine
AD07010Active comparatorAll subjects in this group received 2 doses of 22.2 μg HA antigens from inactivated trivalent influenza vaccine
Receives: Biological: Inactivated trivalent influenza vaccine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Geometric mean titer changes on Day 29

    Change from pre- to post-vaccination serum Geometric mean titers (GMT) of hemagglutinin inhibition (HI) antibody at Day 29(±2)

    Measured: 29 days

Secondary outcomes (4)
  1. Immunogenicity (HI titers)

    Derived variables: in terms of HI titers for: Seroconversion Rate (SCR), Seroconversion Factor (SCF), and Seroprotection Rate (SPR)

    Measured: 29, 90 and 180 days

  2. Immunogenicity (IgA titers)

    Change from pre- to post-vaccination GMT of mucosal anti-HA IgA antibody

    Measured: 29, 90 and 180 days

  3. Immunogenicity (anti-LTh(αK) antibodies)

    Change from pre- to post-vaccination GMT of anti- LTh(αK) antibodies

    Measured: 29, 90 and 180 days

  4. Viral neutralization

    Change from pre- to post-vaccination GMT of virus neutralization titer

    Measured: 29, 90 and 180 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Dec 2018
  2. Study start1 Sep 2017
  3. Primary completion7 Jan 2018
  4. Study completion30 Oct 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
345 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03784885
Sponsor's protocol ID
1066021486
Status last verified
Dec 2018
First submitted
20 Dec 2018
Last updated
26 Dec 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Pan SC, Hsu WT, Lee WS, Wang NC, Chen TJ, Liu MC, Pai HC, Hsu YS, Chang M, Hsieh SM. A double-blind, randomized controlled trial to evaluate the safety and immunogenicity of an intranasally administered trivalent inactivated influenza vaccine with the adjuvant LTh(alphaK): A phase II study. Vaccine. 2020 Jan 29;38(5):1048-1056. doi: 10.1016/j.vaccine.2019.11.047. Epub 2019 Dec 4.

    PubMed 31812463

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing AD07010 and Inactivated trivalent influenza vaccine in people with Influenza Infection, run by Advagene Biopharma Co. Ltd. at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Dec 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Geometric mean titer changes on Day 29 (time frame: 29 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03784885, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Dec 2018; AzTrials last refreshed its copy on 28 Oct 2026.

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