Clinical efficacy and safety of a novel tetravalent dengue vaccine in healthy children aged 2 to 14
years in Asia: a phase III randomised observer-masked, placebo-controlled trial
Exclusion Criteria
An individual fulfilling any of the following criteria is to be excluded from trial enrolment:
1) Subject is pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing
potential, a female must be pre-menarche, surgically sterile, or using an effective method of
contraception or abstinence from at least 4 weeks prior to the first vaccination until at least 4 weeks
after the last vaccination) a
2) Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical
procedure in the 4 weeks preceding the first trial vaccination
3) Planned participation in another clinical trial during the present trial period
4) Self-reported or suspected congenital or acquired immunodeficiency; or receipt of
immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the
preceding 6 months; or long-term systemic corticosteroids therapy (prednisone or equivalent for more
than 2 consecutive weeks within the past 3 months)
5) Self-reported seropositivity for human immunodeficiency virus (HIV) infection
6) Self-reported systemic hypersensitivity to any of the vaccine components, or history of a lifethreatening
reaction to the vaccine used in the trial or to a vaccine containing any of the same
substances
7) Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with
trial conduct or completion b
8) Receipt of blood or blood-derived products in the past 3 months, which might interfere with
assessment of the immune response
9) Planned receipt of any vaccine in the 4 weeks following any trial vaccination
10) Deprived of freedom by administrative or court order, or in an emergency setting, or hospitalised
involuntarily
11) Current alcohol abuse or drug addiction that might interfere with the ability to comply with trial
procedures
12) Identified as a site employee of the Investigator or study center, with direct involvement in the
proposed study or other studies under the direction of that Investigator or study center, as well as a
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family member (i.e., immediate, husband, wife and their children, adopted or natural) of the site
employees or the investigator
a For pre-menarche females, the young female subjects will declare by themselves if they have not yet
started menstruation. If a young female patient reaches menarche during the study, then she is to be
considered as a woman of childbearing potential from that time forward.
b Chronic illnesses may include, but are not limited to, cardiac disorders, renal disorders, auto-immune
disorders, or diabetes.
Per-Protocol Analysis Set for Efficacy
The per-protocol analysis set included all subjects who had no protocol deviations.
Subjects were excluded from the per-protocol analysis set for efficacy (PPSE) for the following
reasons:
• Subject who did not meet at least one of the protocol-specified inclusion/exclusion criteria and did
not respect the definite contraindications
• Subject who did not receive the correct number of injections
• Subject who received at least one dose of a product other than the one that he/she was randomized to
receive
• Administration of vaccine was not done as per-protocol (site and route of administration)
• Subject who did not receive vaccine in the time window defined in the protocol (Injection 1 at Day 0,
Injection 2 at Day 180±20, injection 3 at Day 365±20)
• Subject who received one of the following protocol-restricted therapy or vaccine:
• Immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy or longterm
systemic corticosteroids (for more than 2 consecutive weeks) in the 4 weeks after each
trial vaccination
• Blood or blood-derived products in the 4 weeks before and after each trial vaccination
• Vaccines (other than the trial vaccines) in the 4 weeks before and after each trial vaccination
• Subject with an emergency unblinding performed by the Investigator
• Subject who did not have at least one contact point after 28 days post-Dose 3 and before the end of
the active surveillance period.