E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10022000 |
E.1.2 | Term | Influenza |
E.1.2 | System Organ Class | 10021881 - Infections and infestations |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To demonstrate the non-inferiority of the post-vaccination (Day 22) hemagglutination inhibition (HI) geometric mean titers (GMTs) of AGRIFLU over the corresponding GMTs of the comparator vaccine for all three strains, in healthy adults aged 50 years and above.
To demonstrate non-inferiority of the percentages of subjects achieving seroconversion in antibody titers at Day 22 in the AGRIFLU group over the corresponding percentages of subjects in the comparator group for all three strains, in healthy adults aged 50 years and above.
Safety Objectives
To evaluate the safety and tolerability of of AGRIFLU or comparator vaccines in healthy adults aged 50 years and above.
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E.2.2 | Secondary objectives of the trial |
To evaluate immunogenicity in terms of percentage of subject with HI titer ≥1:40 and seroconversion rates and GMTs ratio of AGRIFLU or comparator, in healthy adults aged 50 years and above. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Males and females aged 50 years and above, mentally competent, willing and able to give written informed consent prior to study entry and after the nature of the study has been explained according to local regulatory requirements.
Individuals able to comply with all the study requirements.
Individuals in good health as determined by the outcome of medical history, physical examination and clinical judgment of the investigator.
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E.4 | Principal exclusion criteria |
Individuals with behavioral or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may interfere with the subject's ability to participate in the study.
Individuals with any progressive or severe neurologic disorder, seizure disorder or Guillan-Barré syndrome.
Individuals who are not able to comprehend and to follow all required study procedures for the whole period of the study.
Individuals who have received any seasonal or pandemic influenza vaccine or have had a laboratory confirmed seasonal or pandemic influenza disease within the past 6 months.
Individuals with history or any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study.
Individuals with suspected HIV infection or HIV related disease, with history of an autoimmune disorder or any other known or suspected impairment /alteration of the immune system, or under immunosuppressive therapy within 6 months or use of systemic corticosteroids or chronic use of inhaled high-potency corticosteroids within the previous 30 days.
Individuals with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
Individuals with any serious chronic or progressive disease according to judgment of the investigator (neoplasm, insulin dependent diabetes, cardiac, renal or hepatic disease).
Individuals who have any malignancy (excluding nonmelanotic skin cancer) or lymphoproliferative disorder.
Individuals with history of any anaphylactic adverse event and/or serious allergic adverse event following a vaccination, a proven hypersensitivity to any component of the study vaccine (e.g. to eggs or eggs product as well as ovalbumin, chicken protein, chicken feathers, influenza viral protein, kanamycin and neomycin sulphate).
Individuals participating in any clinical trial with another investigational product 30 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study.
Receipt of non study vaccines (with the exception of post-exposure vaccination in a medical emergency, e.g. hepatitis, rabies, tetanus) within 3 weeks prior to Visit 1.
Individuals who have ever received blood, blood products and/or plasma derivatives or any parenteral immunoglobulin preparation in the past 12 weeks.
Individuals who have received antibiotics within 6 days before vaccination.
Individuals with body temperature (axillary temperature) ≥38 degrees Celsius (≥ 100.4° F) within the last 3 days of intended study vaccination.
BMI > 35 kg/m2.
Female who are pregnant or nursing (breastfeeding) mothers or females of childbearing potential do not plan to use acceptable birth control measures, for the whole duration of the study. Adequate contraception is defined as hormonal (e.g., oral, injection, transdermal patch, implant, cervical ring), barrier (e.g., condom with spermicide or diaphragm with spermicide), intrauterine device (IUD), or monogamous relationship with vasectomized partner who has been vasectomized for 6 months or more prior to the subject’s study entry; Abstinence.
Individuals who are part of study personnel or close family members conducting this study.
Individuals with history of substance or alcohol abuse within the past 2 years.
There may be instances when individuals meet all entry criteria except one that relates to transient clinical circumstances (e.g., body temperature elevation or recent use of excluded medication or vaccine). Under these circumstances, a subject may be considered eligible for study enrollment if the appropriate window for delay has passed, inclusion/exclusion criteria have been rechecked, and if the subject is confirmed to be eligible. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The immunogenicity, for all 3 strains at Day 22, as determined by the HI assays, in terms of the ratio of the GMTs (GMT comparator/GMT AGRIFLU) and the difference between the seroconversion rates (Seroconversion comparator- Seroconversion AGRIFLU).
Safety Endpoints
The measures for assessing safety and tolerability are as follows:
1.Percentages of subjects with solicited local, solicited systemic and other adverse events as measured for 7 days following vaccination and calculated for four time intervals after vaccination: 30 minutes, Day 1-3 (without 30 min), Day 4-7 (without 30 min), Day 1-7 (without 30 min)
2.Percentages of subjects with any unsolicited AEs reported through 22 days after vaccination
3.Percentages of subjects reporting SAEs, AEs leading to withdrawal from the study, and concomitant medications associated with these events as collected from Day 1 to Day 22
Safety and tolerability will be evaluated considering the percentage of subjects reporting any local or systemic reaction and the number and percentage of subjects with any adverse events.
Solicited local adverse events will include ecchymosis, erythema, induration, swelling and pain at injection site; solicited systemic adverse events will include headache, arthralgia, chills, fatigue, malaise, myalgia, nausea, sweating, loss of appetite, and fever and will be collected for 7 days after vaccination.
Unsolicited adverse events (i.e. all AE not listed as local or systemic reaction, or local and systemic reaction that are still continuing after Day 7) will be classified as probably, possibly related or not related to the vaccine; serious; new onset of chronic diseases and AEs leading to withdrawal from the study. All these AEs categories will be summarized separately and together. Adverse events and local and systemic reaction will be evaluated also by severity. Prior and concomitant medications will be collected and summarized as measures of safety. Assessment will be based on frequencies and proportions without formal comparison.
All the adverse events occurring during the study judged either as related to vaccination or not by the investigator, will be recorded as specified in section 6.5.1. The original verbatim terms used by investigators to identify adverse events in the eCRFs will be mapped to preferred terms using the MedDRA dictionary.
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Day 1 and Day 22 - Primary Objective assessed at Day 22
Safety:
• solicited adverse events: 30 minutes, Day 1-3 (without 30 min), Day 4-7 (without
30 min), Day 1-7 (without 30 min) after vaccination
• unsolicited adverse events: Day 1-22 after vaccination
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E.5.2 | Secondary end point(s) |
The immunogenicity of each vaccine formulation (AGRIFLU and comparator) will be evaluated in terms of percentage of subject achieving a HI titer ≥ 1:40, seroconversion, and geometric mean increase.
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | No |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
The present phase IV study is a post-marketing commitment, non-inferiority immunogenicity study with AGRIFLU compared to a US-licensed trivalent, inactivated, subunit influenza vaccine (Fluvirin) in a population of adults 50 years of age and older.
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 2 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Philippines |
South Africa |
Thailand |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | |
E.8.9.1 | In the Member State concerned months | 4 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 7 |