ClinicalTrials.gg
CompletedNCT05219253Updated May 15, 2025Results posted

A Study on the Immune Response and Safety of a Vaccine Against Herpes Zoster in Adults Aged 50 Years and Older in India

A Phase 3 interventional study of HZ/su and Placebo in Herpes Zoster, sponsored by GlaxoSmithKline. Completed at 9 sites in India. Open to participants aged 50 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-15.

Sponsored by GlaxoSmithKline · Phase 3, Interventional, and Prevention

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Phase
Phase 3
Study type
Interventional
Enrollment
288
Allocation
Randomized
Ages
50 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 46 studies testing shingrix in Herpes Zoster — 8 open to participants now, 11 under way, 3 of them phase 3. shingrix · Herpes Zoster.

Enrollment
21st of 46
288 · median 239
Started
2022
with 2 others
Phase 3
22 of 46
2 open now
Registered
34th of 46
by date
Lead sponsor
26 of 46
GlaxoSmithKline

Among the 46 studies testing shingrix in Herpes Zoster, this one is the 21st largest by enrollment, is one of 3 that started in 2022, is one of 22 in phase 3, and was the 34th registered.

Herpes Zoster

299 studies on the registry are indexed under Herpes Zoster; 55 are open to participants now.

Browse Herpes Zoster studies →

Open to participants now

8 of the 46 studies testing shingrix in Herpes Zoster are open now, in 5 countries. Recruiting first, the newest first:

3 more — sign in →

By country, each count listing its studies:

All 8 open studies →

About shingrix

shingrix: first FDA approval 2017 (Shingrix). What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 37 Herpes Zoster studies recruiting now, 26 (70%) set no upper age limit and 6 (16%) stop at 75 or younger; 3 take children under 18; 13 take healthy volunteers.

This study: 50 Years and older · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 46 studies testing shingrix in Herpes Zoster, or all of them as a file.
02

Study summary

The purpose of this study was to evaluate the humoral immunogenicity and safety of 2 doses of GSK Biologicals' Herpes Zoster subunit vaccine (HZ/su) administered for the prevention of Herpes Zoster (HZ) in adults aged 50 years of age (YOA) or older from India.

03

Conditions studied

  • Herpes Zoster

Browse trials for

Keywords

  • Shingles
  • Herpes Zoster subunit vaccine
  • Immunogenicity
  • Safety
  • Adults aged 50 years and older
  • India
04

Who can participate

Ages eligible
50 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Participants and/or participant's legally acceptable representative(s) (LAR) who in the opinion of the investigator, can and will comply with the requirements of the protocol.
  • Written or witnessed/thumb printed obtained from the participant and/or participant's LAR(s) after the study has been explained according to local regulatory requirements and prior to performance of any study-specific procedure.
  • A male or female aged 50 YOA or older at the time of the first study intervention.
  • Healthy participants or medically stable patients as established by medical history and clinical examination before entering into the study.
  • Female participants of non- may be enrolled in the study.
  • Female participants of childbearing potential may be enrolled in the study, if the participant:

    • has practiced adequate for 1 month prior to study intervention administration, and
    • has a negative pregnancy test on the day of study intervention administration, and
    • has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the study intervention administration series.

Exclusion criteria

Exclusion Criteria:

Medical conditions

  • Any other clinical condition that, in the opinion of the investigator, might pose additional risk to the participant due to participation in the study.
  • History of any reaction or likely to be exacerbated by any component of the study intervention(s) vaccine or study materials or equipment.
  • Acute or chronic pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
  • Any confirmed or suspected or immunodeficient condition, based on medical history and physical examination (no laboratory testing required).
  • History of HZ.
  • Significant underlying illness that in the opinion of the investigator would be expected to prevent completion of the study.

Prior/Concomitant therapy

  • Planned administration/administration of a vaccine not foreseen by the study protocol in the period starting 30 days before first dose and ending 30 days after the last dose of study intervention administration with the exception of licensed pneumococcal vaccines and non-replicating vaccines may be administered up until 8 days prior to Dose 1 and/or Dose 2 and/or at least 14 days after any dose of study intervention.

[In case an emergency mass vaccination for an unforeseen public health threat (e.g. a pandemic) is recommended and/or organised by the public health authorities, outside the routine immunisation programme, the time period described above can be reduced if necessary for that vaccine provided it is used according to local governmental recommendations and that the Sponsor is notified accordingly.]

  • Planned administration of long-acting immune-modifying drugs at any time during the study period.
  • Administration of immunoglobulins and/or any blood products or plasma derivatives during the period starting 3 months before the first dose of study intervention up to 1 month post-dose 2 (Month 3) or planned administration during the study period.
  • Chronic administration (defined as more than 14 days in total) of immunosuppressants or other immune-modifying drugs during the period starting 3 months prior to the first vaccine. For , this will mean prednisone equivalent ≥ 20 mg/day or equivalent is not allowed. Inhaled, intra-articular and topical steroids are allowed.
  • Previous vaccination against varicella or HZ.

Prior/Concurrent clinical study experience Concurrently participating in another clinical study, at any time during the study period, in which the participant has been or will be exposed to an or a non-investigational intervention (drug/ invasive medical device).

Other exclusions

  • Pregnant or lactating female.
  • Female planning to become pregnant or planning to discontinue precautions within 2 months of last study intervention administration.
  • Indications of drug abuse or excess alcohol use as deemed by investigator to potentially confound safety assessments or render participant unable or unlikely to adhere to protocol requirements.
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
288 participants (actual)

Study arms

  • Experimental
    HZ/su Group

    Participants randomized to the HZ/su group received two doses of HZ/su vaccine, administered at Day 1 and Month 2.

    Biological: HZ/su

  • Placebo comparator
    Placebo Group

    Participants randomized to the Placebo group received two doses of Placebo, administered at Day 1 and Month 2.

    Drug: Placebo

Interventions

  • BiologicalHZ/su

    Drug page: Shingrix

    Two doses of the HZ/su vaccine administered intramuscularly, one each at Day 1 and Month 2.

  • DrugPlacebo

    Two doses of Placebo (lyophilised sucrose reconstituted with saline \[NaCl\] solution) administered intramuscularly, one each at Day 1 and Month 2.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants Showing a Vaccine Response for Anti-glycoprotein E (gE)

    A participant with vaccine response for anti-gE was defined as a participant with: * at least a 4-fold greater post-last vaccination anti-gE antibody (Ab) concentration as compared to the pre-vaccination anti-gE Ab concentration, for participants who were seropositive at baseline, or * at least a 4-fold greater post-last vaccination anti-gE Ab concentration as compared to the anti-gE Ab cut-off value for seropositivity, for participants who were seronegative at baseline.

    Time frame: At 1 month post-Dose 2 of study intervention administration (Month 3)

Secondary outcomes

  1. Anti-gE Antibody Concentrations Expressed as Geometric Mean Concentrations (GMCs) and Between-group GMC Ratios

    Anti-gE antibody concentrations were determined by enzyme-linked immunosorbent assay (ELISA) and expressed as GMCs in milli-international units per milliliter (mIU/mL).

    Time frame: At 1 month post-Dose 2 of study intervention administration (Month 3)

  2. Percentage of Participants Reporting Solicited Administration Site Events

    The assessed solicited administration site events included injection site erythema, pain, pruritus and swelling.

    Time frame: Within 7 days after each study intervention dose and across doses (vaccine/placebo administered at Day 1 and Month 2)

  3. Percentage of Participants Reporting Solicited Systemic Events

    The assessed solicited systemic events included fatigue, fever, gastrointestinal symptoms (nausea, vomiting, diarrhoea and/or abdominal pain), headache, myalgia and shivering.

    Time frame: Within 7 days after each study intervention dose and across doses (vaccine/placebo administered at Day 1 and Month 2)

  4. Percentage of Participants Reporting Unsolicited Adverse Events (AEs)

    An unsolicited AE was defined as an AE that was not included in a list of solicited events using a participant diary. Unsolicited events must have been spontaneously communicated by a participant who had signed the informed consent. Also, any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited AE.

    Time frame: Within 30 days after any study intervention dose administration (vaccine/placebo administered at Day 1 and Month 2)

  5. Percentage of Participants Reporting Serious Adverse Events (SAEs)

    An SAE was defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant or an abnormal pregnancy outcome, or an important medical event that may not have been life-threatening or resulted in death or hospitalization, but may have jeopardized the participant or required medical or surgical intervention to prevent one of the aforementioned outcomes.

    Time frame: From Dose 1 (Day 1) up to 30 days post-last study intervention dose

  6. Percentage of Participants Reporting Potential Immune-mediated Diseases (pIMDs)

    pIMDs were defined as a subset of AEs of special interest that included autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have had an autoimmune etiology.

    Time frame: From Dose 1 (Day 1) up to 30 days post-last study intervention dose

  7. Percentage of Participants Reporting SAEs

    An SAE was defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant or an abnormal pregnancy outcome, or an important medical event that may not have been life-threatening or resulted in death or hospitalization, but may have jeopardized the participant or required medical or surgical intervention to prevent one of the aforementioned outcomes.

    Time frame: From Dose 1 (Day 1) up to study end (Month 8)

  8. Percentage of Participants Reporting pIMDs

    pIMDs were defined as a subset of AEs of special interest that included autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have had an autoimmune etiology.

    Time frame: From Dose 1 (Day 1) up to study end (Month 8)

  9. Anti-gE Antibody Concentrations Expressed as GMCs

    Anti-gE antibody concentrations were determined by ELISA and expressed as GMCs in mIU/mL.

    Time frame: At pre-study intervention administration (Day 1) and at 1 month post-Dose 2 of study intervention administration (Month 3)

  10. Percentage of Participants Seropositive for Anti-gE Antibodies

    A participant seropositive for anti-gE antibodies was defined as a participant whose antibody concentration was greater than or equal to (\>=) the assay cut-off value (97 mIU/mL).

    Time frame: At pre-study intervention administration (Day 1) and at 1 month post-Dose 2 of study intervention administration (Month 3)

  11. Mean Geometric Increase (MGI) of Anti-gE Antibody Concentrations

    MGI was defined as the geometric mean of the within participant ratios of anti-gE antibody concentration at 1 month post-Dose 2 (Month 3) compared to pre-study intervention administration (Day 1) anti-gE antibody concentration.

    Time frame: At 1 month post-Dose 2 of study intervention administration (Month 3) compared to pre-study intervention administration (Day 1)

07

Results

Posted Apr 8, 2024

Participant flow

The study was conducted at 9 centers in India.

Participant flow — Overall Study
MilestoneHZ/suSeq GroupPlacebo Group
Started143145
Completed142143
Not completed12
Withdrew: Withdrawal by subject12

Outcome measures

PrimaryPercentage of Participants Showing a Vaccine Response for Anti-glycoprotein E (gE)

A participant with vaccine response for anti-gE was defined as a participant with: * at least a 4-fold greater post-last vaccination anti-gE antibody (Ab) concentration as compared to the pre-vaccination anti-gE Ab concentration, for participants who were seropositive at baseline, or * at least a 4-fold greater post-last vaccination anti-gE Ab concentration as compared to the anti-gE Ab cut-off value for seropositivity, for participants who were seronegative at baseline.

Time frame:
At 1 month post-Dose 2 of study intervention administration (Month 3)
Reported as:
Number · Percentage of participants
Percentage of Participants Showing a Vaccine Response for Anti-glycoprotein E (gE)
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Showing a Vaccine Response for Anti-glycoprotein E (gE)85.7 (78.4 to 91.3)7.8 (3.8 to 13.8)
SecondaryAnti-gE Antibody Concentrations Expressed as Geometric Mean Concentrations (GMCs) and Between-group GMC Ratios

Anti-gE antibody concentrations were determined by enzyme-linked immunosorbent assay (ELISA) and expressed as GMCs in milli-international units per milliliter (mIU/mL).

Time frame:
At 1 month post-Dose 2 of study intervention administration (Month 3)
Reported as:
Geometric mean · mIU/mL
Anti-gE Antibody Concentrations Expressed as Geometric Mean Concentrations (GMCs) and Between-group GMC Ratios
mIU/mLHZ/suSeq GroupPlacebo Group
Anti-gE Antibody Concentrations Expressed as Geometric Mean Concentrations (GMCs) and Between-group GMC Ratios26863.85 (20125.47 to 35858.35)1360.48 (1134.23 to 1631.85)
Statistical analysis
  • HZ/suSeq Group vs Placebo Group · ANOVA · Gmc ratio: 19.80 · 95% CI 14.09 to 27.82
SecondaryPercentage of Participants Reporting Solicited Administration Site Events

The assessed solicited administration site events included injection site erythema, pain, pruritus and swelling.

Time frame:
Within 7 days after each study intervention dose and across doses (vaccine/placebo administered at Day 1 and Month 2)
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting Solicited Administration Site Events
Percentage of participantsHZ/suSeq GroupPlacebo Group
Erythema, post-Dose 10 (0 to 2.5)0 (0 to 2.5)
Erythema, post-Dose 20.7 (0.0 to 3.9)0 (0 to 2.5)
Erythema, Across doses0.7 (0 to 3.8)0 (0 to 2.5)
Pain, post-Dose 153.1 (44.6 to 61.5)33.8 (26.2 to 42.1)
Pain, post-Dose 246.5 (38.1 to 55.0)37.8 (29.8 to 46.2)
Pain, Across doses67.1 (58.8 to 74.8)49.0 (40.6 to 57.4)
Pruritus, post-Dose 19.1 (4.9 to 15.0)8.3 (4.3 to 14.0)
Pruritus, post-Dose 212.7 (7.7 to 19.3)6.3 (2.9 to 11.6)
Pruritus, Across doses20.3 (14.0 to 27.8)13.1 (8.1 to 19.7)
Swelling, post-Dose 11.4 (0.2 to 5.0)0 (0 to 2.5)
Swelling, post-Dose 20.7 (0.0 to 3.9)0 (0 to 2.5)
Swelling, Across doses2.1 (0.4 to 6.0)0 (0 to 2.5)
SecondaryPercentage of Participants Reporting Solicited Systemic Events

The assessed solicited systemic events included fatigue, fever, gastrointestinal symptoms (nausea, vomiting, diarrhoea and/or abdominal pain), headache, myalgia and shivering.

Time frame:
Within 7 days after each study intervention dose and across doses (vaccine/placebo administered at Day 1 and Month 2)
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting Solicited Systemic Events
Percentage of participantsHZ/suSeq GroupPlacebo Group
Fatigue, post-Dose 132.2 (24.6 to 40.5)15.2 (9.8 to 22.1)
Fatigue, post-Dose 235.2 (27.4 to 43.7)14.7 (9.3 to 21.6)
Fatigue, Across doses44.8 (36.4 to 53.3)24.1 (17.4 to 31.9)
Fever, post-Dose 126.6 (19.5 to 34.6)6.9 (3.4 to 12.3)
Fever, post-Dose 217.6 (11.7 to 24.9)3.5 (1.1 to 8.0)
Fever, Across doses28.0 (20.8 to 36.1)9.7 (5.4 to 15.7)
Gastrointestinal symptoms, post-Dose 14.2 (1.6 to 8.9)2.1 (0.4 to 5.9)
Gastrointestinal symptoms, post-Dose 22.8 (0.8 to 7.1)0.7 (0.0 to 3.8)
Gastrointestinal symptoms, Across doses7.0 (3.4 to 12.5)2.8 (0.8 to 6.9)
Headache, post-Dose 116.1 (10.5 to 23.1)13.1 (8.1 to 19.7)
Headache, post-Dose 220.4 (14.1 to 28.0)11.9 (7.1 to 18.4)
Headache, Across doses28.7 (21.4 to 36.8)22.8 (16.2 to 30.5)
Myalgia, post-Dose 116.8 (11.1 to 23.9)2.8 (0.8 to 6.9)
Myalgia, post-Dose 213.4 (8.3 to 20.1)0.7 (0.0 to 3.8)
Myalgia, Across doses22.4 (15.8 to 30.1)3.4 (1.1 to 7.9)
Shivering, post-Dose 14.9 (2.0 to 9.8)4.1 (1.5 to 8.8)
Shivering, post-Dose 24.9 (2.0 to 9.9)1.4 (0.2 to 5.0)
Shivering, Across doses8.4 (4.4 to 14.2)5.5 (2.4 to 10.6)
SecondaryPercentage of Participants Reporting Unsolicited Adverse Events (AEs)

An unsolicited AE was defined as an AE that was not included in a list of solicited events using a participant diary. Unsolicited events must have been spontaneously communicated by a participant who had signed the informed consent. Also, any 'solicited' symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited AE.

Time frame:
Within 30 days after any study intervention dose administration (vaccine/placebo administered at Day 1 and Month 2)
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting Unsolicited Adverse Events (AEs)
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Reporting Unsolicited Adverse Events (AEs)13.3 (8.2 to 20.0)13.1 (8.1 to 19.7)
SecondaryPercentage of Participants Reporting Serious Adverse Events (SAEs)

An SAE was defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant or an abnormal pregnancy outcome, or an important medical event that may not have been life-threatening or resulted in death or hospitalization, but may have jeopardized the participant or required medical or surgical intervention to prevent one of the aforementioned outcomes.

Time frame:
From Dose 1 (Day 1) up to 30 days post-last study intervention dose
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting Serious Adverse Events (SAEs)
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Reporting Serious Adverse Events (SAEs)0.7 (0.0 to 3.8)0 (0 to 2.5)
SecondaryPercentage of Participants Reporting Potential Immune-mediated Diseases (pIMDs)

pIMDs were defined as a subset of AEs of special interest that included autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have had an autoimmune etiology.

Time frame:
From Dose 1 (Day 1) up to 30 days post-last study intervention dose
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting Potential Immune-mediated Diseases (pIMDs)
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Reporting Potential Immune-mediated Diseases (pIMDs)0 (0 to 2.5)0 (0 to 2.5)
SecondaryPercentage of Participants Reporting SAEs

An SAE was defined as any untoward medical occurrence that resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability/incapacity, was a congenital anomaly/birth defect in the offspring of a study participant or an abnormal pregnancy outcome, or an important medical event that may not have been life-threatening or resulted in death or hospitalization, but may have jeopardized the participant or required medical or surgical intervention to prevent one of the aforementioned outcomes.

Time frame:
From Dose 1 (Day 1) up to study end (Month 8)
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting SAEs
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Reporting SAEs0.7 (0.0 to 3.8)1.4 (0.2 to 4.9)
SecondaryPercentage of Participants Reporting pIMDs

pIMDs were defined as a subset of AEs of special interest that included autoimmune diseases and other inflammatory and/or neurologic disorders of interest which may or may not have had an autoimmune etiology.

Time frame:
From Dose 1 (Day 1) up to study end (Month 8)
Reported as:
Number · Percentage of participants
Percentage of Participants Reporting pIMDs
Percentage of participantsHZ/suSeq GroupPlacebo Group
Percentage of Participants Reporting pIMDs0 (0 to 2.5)0 (0 to 2.5)
SecondaryAnti-gE Antibody Concentrations Expressed as GMCs

Anti-gE antibody concentrations were determined by ELISA and expressed as GMCs in mIU/mL.

Time frame:
At pre-study intervention administration (Day 1) and at 1 month post-Dose 2 of study intervention administration (Month 3)
Reported as:
Geometric mean · mIU/mL
Anti-gE Antibody Concentrations Expressed as GMCs
mIU/mLHZ/suSeq GroupPlacebo Group
At Day 11210.86 (982.17 to 1492.79)1217.81 (1019.01 to 1455.39)
At Month 326863.85 (20125.47 to 35858.35)1360.48 (1134.23 to 1631.85)
SecondaryPercentage of Participants Seropositive for Anti-gE Antibodies

A participant seropositive for anti-gE antibodies was defined as a participant whose antibody concentration was greater than or equal to (\>=) the assay cut-off value (97 mIU/mL).

Time frame:
At pre-study intervention administration (Day 1) and at 1 month post-Dose 2 of study intervention administration (Month 3)
Reported as:
Number · Percentage of participants
Percentage of Participants Seropositive for Anti-gE Antibodies
Percentage of participantsHZ/suSeq GroupPlacebo Group
At Day 197.6 (93.2 to 99.5)96.9 (92.3 to 99.1)
At Month 399.2 (95.7 to 100.0)100 (97.2 to 100)
SecondaryMean Geometric Increase (MGI) of Anti-gE Antibody Concentrations

MGI was defined as the geometric mean of the within participant ratios of anti-gE antibody concentration at 1 month post-Dose 2 (Month 3) compared to pre-study intervention administration (Day 1) anti-gE antibody concentration.

Time frame:
At 1 month post-Dose 2 of study intervention administration (Month 3) compared to pre-study intervention administration (Day 1)
Reported as:
Geometric mean · Ratio
Mean Geometric Increase (MGI) of Anti-gE Antibody Concentrations
RatioHZ/suSeq GroupPlacebo Group
Mean Geometric Increase (MGI) of Anti-gE Antibody Concentrations22.19 (15.46 to 31.83)1.12 (0.92 to 1.36)

Adverse events

Collected over Solicited administration site and systemic AEs: during the 7-day (Days 1-7) follow-up period after vaccination; Unsolicited AEs: during the 30-day (Days 1-30) follow-up period after vaccination; SAEs: from Dose 1 (Day 1) up to study end (Month 8).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
HZ/suSeq Group0/143 (0%)1/143 (0.7%)103/143 (72%)
Placebo Group0/145 (0%)2/145 (1.4%)88/145 (60.7%)
Most frequent serious events
Most frequent serious events
EventHZ/suSeq GroupPlacebo Group
PneumoniaInfections and infestations1/1430/145
Accidental poisoningInjury, poisoning and procedural complications0/1431/145
Head injuryInjury, poisoning and procedural complications0/1431/145
Most frequent other events
Showing 10 of 22
Most frequent other events
EventHZ/suSeq GroupPlacebo Group
Administration site painGeneral disorders96/14371/145
FatigueGeneral disorders64/14336/145
PyrexiaGeneral disorders42/14316/145
HeadacheNervous system disorders42/14337/145
MyalgiaMusculoskeletal and connective tissue disorders34/1437/145
PruritusSkin and subcutaneous tissue disorders29/14319/145
ChillsGeneral disorders12/1438/145
Gastrointestinal disorderGastrointestinal disorders10/1434/145
DiarrhoeaGastrointestinal disorders3/1438/145
VomitingGastrointestinal disorders3/1432/145

Baseline characteristics

Age, Continuous
Age, Continuous(Years)HZ/suSeq GroupPlacebo GroupTotal
Mean58.9 ± 7.258.2 ± 7.058.5 ± 7.1
Sex: Female, Male
Sex: Female, Male(Participants)HZ/suSeq GroupPlacebo GroupTotal
Female444892
Male9997196
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)HZ/suSeq GroupPlacebo GroupTotal
ASIAN - CENTRAL / SOUTH ASIAN HERITAGE140141281
ASIAN - SOUTH EAST ASIAN HERITAGE347
08

Study locations

9 sites
  • GSK Investigational Site
    Visakhapatnam, Andhra Pradesh, India
  • GSK Investigational Site
    North Guwahati, Assam 781031, India
  • GSK Investigational Site
    Ahmedabad, Gujarat 380005, India
  • GSK Investigational Site
    Mumbai, Maharashtra, India
  • GSK Investigational Site
    Chandigarh, Punjab 160012, India
  • GSK Investigational Site
    Kanpur, 208002, India
  • GSK Investigational Site
    Mysore, 570004, India
  • GSK Investigational Site
    New Delhi, 110060, India
  • GSK Investigational Site
    Pune, 412216, India
09

References and documents

Publications

  • Naficy A, Chugh Y, Tariq M, Hawksworth H, Sankhe LR, Mwakingwe-Omari A. Immune response and safety of the adjuvanted recombinant zoster vaccine in adults 50 years of age and older in India: A randomized phase 3 trial. Vaccine. 2025 Mar 19;50:126819. doi: 10.1016/j.vaccine.2025.126819. Epub 2025 Feb 10. PubMed 39923547 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — Study Sponsor will assess requests from qualified researchers for anonymized individual patient-level data and related study documents. Data sharing is subject to certain criteria, conditions, and exceptions. For further information, refer to https://www.gsk-studyregister.com/About_GSK_Patient_Level_Data_Sharing_Final_13July2023.pdf

Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report

Time frame: Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or asset(s) with development terminated across all indications.

Access criteria: Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension may be granted, when justified, for up to 6 months.

Data sharing details ↗ · www.gsk-studyregister.com

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Feb 2022 to primary completion in Oct 2022, 8 months.

Results were first posted in Apr 2024, 1 year 5 months after primary completion.

Of 33 industry-sponsored phase 3 interventional studies under Herpes Zoster, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 45. This study's 8 months is below that.

Counting every sponsor, half of 40 studies reached it within 16 months; a quarter within 10 and three quarters within 45.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 21, 2022
First posted
Feb 2, 2022
StartActual
Feb 2, 2022
Primary completionActual
Oct 11, 2022
CompletionActual
Dec 12, 2022
Results first posted
Apr 8, 2024
Last update
May 15, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 15, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05219253
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Feb 2, 2022
Start date
Feb 2, 2022
Primary completion
Oct 11, 2022
Completion
Dec 12, 2022
Results posted
Apr 8, 2024
Last update
May 15, 2025

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Shingrix

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