Clinical Trial Results:
A phase IIb study to determine the safety and efficacy of candidate INfluenza Vaccine MVA-NP+M1 in combination with licensed InaCTivated inflUenza vaccine in adultS aged 65 years and above
Summary
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EudraCT number |
2017-001103-77 |
Trial protocol |
GB |
Global end of trial date |
31 Oct 2018
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Results information
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Results version number |
v1(current) |
This version publication date |
11 Nov 2019
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First version publication date |
11 Nov 2019
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
FLU007 INVICTUS
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT03300362 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Vaccitech Limited
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Sponsor organisation address |
The Schrodinger Building, Heatley Avenue, Oxford Science Park, Oxford, United Kingdom, OX4 4GE
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Public contact |
Dr Thomas Evans, Vaccitech Limited, 44 1865 818008, enquiries@vaccitech.co.uk
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Scientific contact |
Dr Thomas Evans, Vaccitech Limited, 44 1865 818008, tom.evans@vaccitech.co.uk
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
20 Aug 2019
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
20 Aug 2018
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Global end of trial reached? |
Yes
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Global end of trial date |
31 Oct 2018
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Was the trial ended prematurely? |
Yes
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General information about the trial
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Main objective of the trial |
To assess the efficacy of MVA-NP+M1 in combination with licensed inactivated influenza vaccine in adults ≥65 years.
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Protection of trial subjects |
standard procedures for emergency care were followed for any adverse events if clinically needed. The study also incorporated stopping rules and IDMC reviews at pre-defined time points.
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Background therapy |
annual licensed QIV influenza vaccine | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
29 Sep 2017
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
Yes
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
United Kingdom: 862
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Worldwide total number of subjects |
862
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EEA total number of subjects |
862
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
0
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From 65 to 84 years |
862
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85 years and over |
0
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Recruitment
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Recruitment details |
participants aged 65 years or over who were eligible for the annual seasonal influenza vaccine were approached after screening by their General Practitioner. If interest was obtained, they were brought into their GP practice for screening, consenting and vaccination on the same day. They were then sent home with a diary card. | ||||||||||||||||||||||||
Pre-assignment
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Screening details |
- | ||||||||||||||||||||||||
Pre-assignment period milestones
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Number of subjects started |
1020 [1] | ||||||||||||||||||||||||
Number of subjects completed |
862 | ||||||||||||||||||||||||
Pre-assignment subject non-completion reasons
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Reason: Number of subjects |
On anti-coagulants: 2 | ||||||||||||||||||||||||
Reason: Number of subjects |
Did not attend appointment: 77 | ||||||||||||||||||||||||
Reason: Number of subjects |
History of anaphlyaxis: 2 | ||||||||||||||||||||||||
Reason: Number of subjects |
Attended visit and changed mind: 44 | ||||||||||||||||||||||||
Reason: Number of subjects |
Other medical reason: 2 | ||||||||||||||||||||||||
Reason: Number of subjects |
Involved in other trial: 1 | ||||||||||||||||||||||||
Reason: Number of subjects |
Previous allergic reaction to vaccine: 1 | ||||||||||||||||||||||||
Reason: Number of subjects |
Unknown: 20 | ||||||||||||||||||||||||
Reason: Number of subjects |
Physician decision: 9 | ||||||||||||||||||||||||
Notes [1] - The number of subjects reported to have started the pre-assignment period are not the same as the worldwide number enrolled in the trial. It is expected that these numbers will be the same. Justification: 1020 people screened and invited to participate, only 862 decided or were eligible to participate. |
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Period 1
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Period 1 title |
Enrolment
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Is this the baseline period? |
Yes | ||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Single blind [2] | ||||||||||||||||||||||||
Roles blinded |
Subject, Investigator, Carer, Assessor | ||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Active | ||||||||||||||||||||||||
Arm description |
MVA-NP+M1 plus seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||
Investigational medicinal product name |
MVA-NP+M1
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
MVA dose 1.5x10*8 pfu given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Influenza virus (inactivated, split) of the following strains*:
Per 0.5 ml dose
* propagated in fertilised hens' eggs from healthy chicken flocks
** haemagglutinin
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Arm title
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Placebo | ||||||||||||||||||||||||
Arm description |
0.9% Saline placebo and seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Placebo | ||||||||||||||||||||||||
Investigational medicinal product name |
saline
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.9% saline 0.5mL given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Each dose was 0.5ml and administered via intramuscular injection
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Notes [2] - The number of roles blinded appears inconsistent with a single blinded trial. It is expected that there will be one role blinded in a single blind trial. Justification: Due to the appearance of MVA it was not possible to conduct a double blind trial, however, to maintain as much blind as possible all study roles that could be kept blind were as shown here. |
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Period 2
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Period 2 title |
Vaccination
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Is this the baseline period? |
No | ||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Single blind [3] | ||||||||||||||||||||||||
Roles blinded |
Subject, Investigator, Carer, Assessor | ||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Active | ||||||||||||||||||||||||
Arm description |
MVA-NP+M1 plus seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||
Investigational medicinal product name |
MVA-NP+M1
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
MVA dose 1.5x10*8 pfu given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Influenza virus (inactivated, split) of the following strains*:
Per 0.5 ml dose
* propagated in fertilised hens' eggs from healthy chicken flocks
** haemagglutinin
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Arm title
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Placebo | ||||||||||||||||||||||||
Arm description |
0.9% Saline placebo and seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Placebo | ||||||||||||||||||||||||
Investigational medicinal product name |
saline
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.9% saline 0.5mL given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Each dose was 0.5ml and administered via intramuscular injection
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Notes [3] - The number of roles blinded appears inconsistent with a single blinded trial. It is expected that there will be one role blinded in a single blind trial. Justification: Due to the appearance of MVA it was not possible to conduct a double blind trial, however, to maintain as much blind as possible all study roles that could be kept blind were as shown here. |
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Period 3
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Period 3 title |
Diary Card Completion
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Is this the baseline period? |
No | ||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Single blind [4] | ||||||||||||||||||||||||
Roles blinded |
Subject, Investigator, Carer, Assessor | ||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Active | ||||||||||||||||||||||||
Arm description |
MVA-NP+M1 plus seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||
Investigational medicinal product name |
MVA-NP+M1
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
MVA dose 1.5x10*8 pfu given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
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Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Influenza virus (inactivated, split) of the following strains*:
Per 0.5 ml dose
* propagated in fertilised hens' eggs from healthy chicken flocks
** haemagglutinin
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Arm title
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Placebo | ||||||||||||||||||||||||
Arm description |
0.9% Saline placebo and seasonal influenza vaccine | ||||||||||||||||||||||||
Arm type |
Placebo | ||||||||||||||||||||||||
Investigational medicinal product name |
saline
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||||||||||||||||||||||||
Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
|||||||||||||||||||||||||
Pharmaceutical forms |
Solution for injection
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||||||||||||||||||||||||
Routes of administration |
Intramuscular use
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Dosage and administration details |
0.9% saline 0.5mL given into deltoid muscle
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Investigational medicinal product name |
Quadrivalent Influenza Vaccine
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Investigational medicinal product code |
|||||||||||||||||||||||||
Other name |
|||||||||||||||||||||||||
Pharmaceutical forms |
Solution for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
Each dose was 0.5ml and administered via intramuscular injection
|
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Notes [4] - The number of roles blinded appears inconsistent with a single blinded trial. It is expected that there will be one role blinded in a single blind trial. Justification: Due to the appearance of MVA it was not possible to conduct a double blind trial, however, to maintain as much blind as possible all study roles that could be kept blind were as shown here. |
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Baseline characteristics reporting groups
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Reporting group title |
Active
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Reporting group description |
MVA-NP+M1 plus seasonal influenza vaccine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo
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Reporting group description |
0.9% Saline placebo and seasonal influenza vaccine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Active
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Reporting group description |
MVA-NP+M1 plus seasonal influenza vaccine | ||
Reporting group title |
Placebo
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Reporting group description |
0.9% Saline placebo and seasonal influenza vaccine | ||
Reporting group title |
Active
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Reporting group description |
MVA-NP+M1 plus seasonal influenza vaccine | ||
Reporting group title |
Placebo
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Reporting group description |
0.9% Saline placebo and seasonal influenza vaccine | ||
Reporting group title |
Active
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Reporting group description |
MVA-NP+M1 plus seasonal influenza vaccine | ||
Reporting group title |
Placebo
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Reporting group description |
0.9% Saline placebo and seasonal influenza vaccine |
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End point title |
Number of Days with Moderate/Severe Influenza-like Symptoms during ILI | ||||||||||||
End point description |
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End point type |
Primary
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End point timeframe |
Day 8 until end of influenza season which was 30th April 2018
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Statistical analysis title |
Unadjusted Linear Mixed Effect Model | ||||||||||||
Comparison groups |
Placebo v Active
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Number of subjects included in analysis |
846
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Analysis specification |
Pre-specified
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Analysis type |
other [1] | ||||||||||||
P-value |
= 0.872 | ||||||||||||
Method |
Mixed models analysis | ||||||||||||
Parameter type |
Odds ratio (OR) | ||||||||||||
Point estimate |
0.954
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
0.537 | ||||||||||||
upper limit |
1.694 | ||||||||||||
Notes [1] - unadjusted linear mixed effect model for presence of moderate or severe symptoms |
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End point title |
Incidence of Influenza like Illness | |||||||||
End point description |
Protocol defined ILI episodes
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End point type |
Secondary
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End point timeframe |
Day 8 to 30th April 2018
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No statistical analyses for this end point |
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End point title |
Duration of Influenza like Illness | ||||||||||||
End point description |
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End point type |
Secondary
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End point timeframe |
Day 08 to 30th April 2018
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
date of consent to day 28 for non-serious events
date of consent until end of study for serious adverse events
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Assessment type |
Non-systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
20.1
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Reporting groups
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Reporting group title |
Safety population
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Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 1% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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13 Nov 2017 |
Sponsor Address
24 Hour Safety Hotline number and safety email
Treatment duration and follow-up duration
ILI definition
Clarification of trial design for immunology cohort
Date to start recording their illness diary cards
Criteria for postponement of vaccination.
Details of randomisation for immunology cohort
Randomisation details not recorded in eCRF
Illness reporting and safety follow-up – details of ILI symptoms given here.
Medical Notes Review includes: chest imaging results when available
Deleted: Guidelines for assessing the relationship of vaccine administration to an AE
Start date for data analysis
Primary Outcome definition
Interim analysis: to include after the first 100 participants have been randomised |
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27 Mar 2018 |
Updated information on previous clinical use of MVA-NP+M1.
Added laboratory confirmed influenza as a secondary trial endpoint.
Addition of nasal swab procedure to collect laboratory confirmed influenza secondary endpoint
Clarifications on secondary endpoints and immunology endpoints.
Clarifications on trial design, AE reporting and causality assessment procedures
Updated list of solicited AEs and ILI symptoms recorded
Updated safety reporting information: GP consultations due to respiratory illness only, collected from week 5 onward. Previously scheduled elective procedures will not be reported as SAEs.
Clarification of which investigators will be blinded to group allocation.
Clarifications on study procedures for data collection on defined endpoints.
Updated compensation amount to reflect additional screening visit needed for participants recruited into the Immunology Cohort via general advertisements.
Increased window from 90 to 120 days between screening and vaccination visit for participants recruited via general advertisements
Update clarification of the statistical analysis of ILI |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |