Safety and Immunogencity of H7N9 Influenza Antigen With 2 Adjuvant Formulations in Healthy Adults in Brazil
A Phase I Randomized, Double-blind, Placebo-controlled, Dose Finding Clinical Trial to Evaluate the Safety and Immunogencity of H7N9 Influenza Antigen Adjuvanted With 2 Different Adjuvant Formulations in Healthy Adult Volunteers in Brazil
The overall aim of this study is to evaluate the safety, immunogenicity and dose sparing effects of H7N9 influenza antigen formulated with 2 different adjuvants .
Registry Overview
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
Recruitment status
completed
Actual enrollment (reported)
432 participants
Study completion date
August 25, 2020
Actual (reported)
Listed locations
1 countries · 3 sites
Trial Relationships
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Study Timeline
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
Number of participants with solicited local Adverse Events over the 7-day period post each study injection.
Solicited local Adverse Events (AE) include erythema, swelling/induration, pain/tenderness, ecchymosis, pruritis.
The participant will be given a Participant Diary, a digital thermometer and ruler in which the participant will be asked to record any local and/or systemic reactions.
The participant will have been instructed that if he/she experiences an AE requiring medical care, the participant should inform the study staff as soon as possible and seek medical care as appropriate.
A visit will be schedule to occur 7 days after each study injection. Study staff will review the Participant Diary and interim history with the participant and inquire about new medical events, which will be recorded in the appropriate Clinical Research Forms.
7-day period post each study injection (Days 0-6)
Number of participants with solicited systemic Adverse Effects over the 7-day period post each study injection.
Solicited systemic Adverse Events (AE) include fever, fatigue/malaise, myalgia, arthralgia, chills, nausea/vomiting, and headache.
The participant will be given a Participant Diary, a digital thermometer and ruler in which the participant will be asked to record any local and/or systemic reactions.
The participant will have been instructed that if he/she experiences an AE requiring medical care, the participant should inform the study staff as soon as possible and seek medical care as appropriate.
A visit will be schedule to occur 7 days after each study injection. Study staff will review the Participant Diary and interim history with the participant and inquire about new medical events, which will be recorded in the appropriate Clinical Research Forms.
7-day period post each study injection (Days 0-6)
Number of participants with unsolicited local and/or systemic Adverse Events over the 7-day period post each study injection.
Unsolicited local and/or systemic Adverse Events include any AE not include in the description of solicited AE, as described in Outcome 1 and 2.
The participant will be given a Participant Diary, a digital thermometer and ruler in which the participant will be asked to record any local and/or systemic reactions.
The participant will have been instructed that if he/she experiences an AE requiring medical care, the participant should inform the study staff as soon as possible and seek medical care as appropriate.
A visit will be schedule to occur 7 days after each study injection. Study staff will review the Participant Diary and interim history with the participant and inquire about new medical events, which will be recorded in the appropriate Clinical Research Forms.
Secondary Outcomes (5)
Number of participants with unsolicited local and/or systemic Adverse Events over the 28-day period post each study injection.
28-day period post each study injection (Days 0-27)
Number of participants with Serious Adverse Events over the 222-day period post second study injection.
222-day period post the second study injection (Days 0-221)
Number of participants that presented seroconversion at day 28, 45 and 56 post first study injection
56-day period post the first study injection
Number of participants that presented seroprotection at day 28, 45 and 56 post first study injection
56-day period post the first study injection
Geometric mean of Hemagglutination-inhibition titre at day 28, 45 and 56 post first study injection
56-day period post the first study injection
Study Arms (8)
15 mcg H7N9 + adjuvant IB160
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the combination (15 mcg H7N9 antigen + adjuvant IB160) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 15 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant IB160
7.5 mcg H7N9 + adjuvant IB160
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the combination (7.5 mcg H7N9 antigen + adjuvant IB160) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 7.5 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant IB160
3.75 mcg H7N9 + adjuvant IB160
ACTIVE COMPARATOR
Interventions
H7N9 antigen + adjuvant IB160Biological
H7N9 monovalent (fragmented and inactivated)
15 mcg H7N9 + adjuvant IB1603.75 mcg H7N9 + adjuvant IB1607.5 mcg H7N9 + adjuvant IB160
H7N9 antigen + adjuvant SEBiological
H7N9 monovalent (fragmented and inactivated)
Eligibility Criteria
Age18 Years - 59 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
You may qualify if:
Healthy male or female (non-pregnant) adults 18 through 59 years of age at the enrollment visit.
To be available to participate in the study throughout its duration (approximately seven months).
Participants in this arm will receive one dose of the combination (3.75 mcg H7N9 antigen + adjuvant IB160) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 3.75 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant IB160
15 mcg H7N9 + adjuvant SE
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the combination (15 mcg H7N9 antigen + adjuvant SE) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 15 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant SE
7.5 mcg H7N9 + adjuvant SE
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the combination (7.5 mcg H7N9 antigen + adjuvant SE) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 7.5 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant SE
3.75 mcg H7N9 + adjuvant SE
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the combination (3.75 mcg H7N9 antigen + adjuvant SE) at Day 0 and another dose at Day 28.
Each dose after combination = 0,5 ml 3.75 mcg of the monovalent H7N9 antigen per dose
Biological: H7N9 antigen + adjuvant SE
15 mcg H7N9 without adjuvant
ACTIVE COMPARATOR
Participants in this arm will receive one dose of the 15 mcg H7N9 antigen without adjuvant at Day 0 and another dose at Day 28.
Each dose = 0,5 ml
Biological: H7N9 antigen without adjuvant
Placebo (PBS)
PLACEBO COMPARATOR
Participants in this arm will receive one dose of Placebo (PBS) at Day 0 and another dose at Day 28.
Each dose = 0,5 ml
Biological: Placebo (PBS)
15 mcg H7N9 + adjuvant SE3.75 mcg H7N9 + adjuvant SE7.5 mcg H7N9 + adjuvant SE
H7N9 antigen without adjuvantBiological
H7N9 monovalent (fragmented and inactivated)
15 mcg H7N9 without adjuvant
Placebo (PBS)Biological
Placebo (Phosphate Buffered Saline -PBS)
Placebo (PBS)
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Healthy, as established by the medical history, physical examination, and screening laboratory evaluations.
Capable and willing to complete Participant Diaries and willing to return for all follow-up visits.
To demonstrate intention to participate in the study, as documented by signature in the study´s informed consent form.
For females of child-bearing potential, willing to utilize reliable birth control measures from Day 0 through at least 60 days following the last study vaccination.
You may not qualify if:
Participation in another clinical trial involving any experimental therapy within the previous three months or planned enrollment in such a trial during the period of this study.
Evidence of active neurological, cardiac, pulmonary, hepatic or renal disease as clinical history and/or physical examination (except hypertension under control).
Compromised immune system diseases including: HIV, Hepattis B and C, diabetes mellitus, cancer (except basal cell carcinoma) and autoimmune diseases.
Behavioral, cognitive or psychiatric disease that in the opinion of the principal investigator or his representative physician, affects the participant ability to understand and cooperate with all study protocol requirements.
Abusive usage of alcohol or drugs in the past 12 months that has caused medical, professional or family problems, indicated by clinical history.
Known systemic hypersensitivity to eggs or to any component of the vaccine.
History of severe adverse reaction after previous administration of an Influenza vaccine within 6 weeks following vaccination.
History of Guillain-Barre Syndrome or other demyelinating disease.
Have a history of severe reactions following previous immunization with licensed or unlicensed influenza virus vaccines.
Diagnosis of asthma with a history of hospitalization related to this condition in the last six months due to illness.
Suspected or confirmed fever in the 3 days prior to vaccination or axillary temperature greater than 37.8 ° C on the day of vaccination.
Use of corticosteroids (except topical or nasal) or other immunosuppressive drugs within 42 days before study initiation/baseline. It will be considered immunosuppressive dose of corticosteroids the equivalent to a dose ≥10 mg of prednisone per day for over 14 days.
Impaired coagulation due to chronic disease or due to use anticoagulant medication (warfarin or heparin) in the 7 days preceding vaccination.
Have received live virus vaccine within 28 days or killed virus vaccine in the last 14 days prior to vaccination, or have a scheduled immunization from the first study vaccination until 21 days after the second vaccination.
Have received any influenza A/H7 vaccine.
+3 more criteria
Contact the study team to confirm eligibility.
Primary Completion
January 30, 2020
Actual (reported)
Study Completion
August 25, 2020
Actual (reported)
Last Updated
September 30, 2020
Record last verified: 2020-09
Source record
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Source: ClinicalTrials.gov.
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