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Herpes Zoster subunit vaccine

Phase 3

Herpes Zoster | Monoclonal antibody | Infectious Disease |GSK plc|Last Updated: Dec 4, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment1,430

FDA Designations

No designations recorded

Clinical trial landscape

Herpes Zoster subunit vaccine · 1 trial · 1 indication

Phase 3 1
NCT04091451Safety and Immunogenicity Study of GlaxoSmithKline's Herpes Zoster Subunit Vaccine (HZ/su) When Given on a Two-dose Schedule to Adults at Least 50 Years of Age (YOA) With a Prior Episode of Herpes ZosterHerpes Zoster
COMPLETED1,430 Analytics
PHASE3COMPLETED
Safety and Immunogenicity Study of GlaxoSmithKline's Herpes Zoster Subunit Vaccine (HZ/su) When Given on a Two-dose Schedule to Adults at Least 50 Years of Age (YOA) With a Prior Episode of Herpes Zoster
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Study Endpoints

Primary Endpoints

Incidence Rate of Confirmed Herpes Zoster (HZ) Cases
From 30 days post-second vaccination (Month 3) until study end (duration of approximately 2 years to 4 years and 5 months)

A suspected case of HZ is defined as a new unilateral rash accompanied by pain (broadly defined to include allodynia, pruritus or other sensations) and no alternative diagnosis. A suspected case of HZ was confirmed by an algorithm that included Polymerase Chain Reaction (PCR) and the HZ Ascertainment Committee (HZAC) determination. The incidence rate (n/T) of confirmed HZ cases, expressed in terms of 1000 person-years rate, was calculated as the number of participants reporting at least one confirmed HZ case (n) in a group, over the sum of follow-up period expressed in years (T) in the same group, and multiplied by 1000.

Secondary Endpoints

Incidence Rate of Confirmed HZ Cases
From first vaccination (Day 1) until study end (duration of approximately 2 years to 4 years and 5 months)
Number of Participants With Any and Grade 3 Solicited Administration Site Events
Within 7 days after each vaccination (occurring at Day 1 and Month 2)
Duration in Days of Solicited Administration Site Events
Within 7 days after each vaccination (occurring at Day 1 and Month 2)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
HZ/su GroupEXPERIMENTALParticipants with a prior episode of HZ randomized to the HZ/su group were scheduled to receive 2 doses of HZ/su vaccine, one at Day 1 and one at Month 2.
Placebo GroupPLACEBO_COMPARATORParticipants with a prior episode of HZ randomized to the Placebo group were scheduled to receive 2 doses of placebo, one at Day 1 and one at Month 2.

Interventions

NameTypeDescription
Herpes Zoster subunit (HZ/su) vaccine (GSK1437173A)BIOLOGICAL2 doses of HZ/su vaccine were administered intramuscularly according to a 0,2 months vaccination schedule, at Day 1 and Month 2.
PlaceboDRUG2 doses of Placebo were administered intramuscularly according to a 0,2 months vaccination schedule, at Day 1 and Month 2.
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Eligibility Criteria

Age Range50 Years to N/A
SexALL
Healthy VolunteersYes
Study Sites3

Inclusion Criteria: * Subjects and/or subject's LAR(s) who, in the opinion of the investigator, can and will comply with the requirements of the protocol * Written informed consent obtained from the subject/subject's LAR(s) prior to performance of any study specific procedure. * A male or female ≥ ...

Countries:Russia
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