ClinicalTrials.gg
CompletedNCT01562444Updated Aug 12, 2021Results posted

Study to Evaluate Long Term Immunogenicity up to 10 Years After the First Booster Immunization With Tick Borne Encephalitis Vaccine in Adults Who Received 1 of 3 Different Primary Vaccination Schedules

A Phase 4 interventional study of Blood draw in Tick Borne Encephalitis and Virus Diseases, sponsored by GlaxoSmithKline. Completed at 1 site in Czechia. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-08-12.

Sponsored by GlaxoSmithKline · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
206
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to investigate the immunogenicity response in adults up to 10 years after one booster dose. Data collected from this study will allow for greater information to prescribers who administer TBE vaccine, so that they can appropriately time the administration of booster vaccinations to individuals who received different vaccination schedules and who live in tick borne encephalitis endemic regions.

02

Conditions studied

  • Tick Borne Encephalitis
  • Virus Diseases

Keywords

  • Long term immunogenicity study
03

In context

Encephalitis, Tick-Borne

51 studies on the registry are indexed under Encephalitis, Tick-Borne; 9 are open to participants now.

This study's enrollment of 206 is close to the median of 192 across 32 interventional studies indexed under Encephalitis, Tick-Borne.

Browse Encephalitis, Tick-Borne studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,650 studies on the registry; 118 are open to participants now.

Of its 264 completed or terminated interventional studies of FDA-regulated products, 241 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 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

  • Subjects who have completed prior study - V48P7E1.

Exclusion criteria

Exclusion Criteria:

  • Subjects whose antibody responses to booster vaccine received in the parent study fell below protective levels, subjects who have been exposed to TBE or flavivirus vaccine, subjects with .
Terms in these criteria, in plain language(1)

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.

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.

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
206 participants (actual)

Study arms

  • Other
    TBE_R Group

    Subjects who had previously received the Tick borne encephalitis (TBE) primary vaccination according to rapid (R) schedule i.e., on days 0, 7 (+3) and 21 (+7) in the parent study (V48P7) and who were administered 1 booster dose of Encepur adults either 12-18 months after R schedule completion or in the first extension study, V48P7E1 (NCT00387634), were included in this group. Subjects had blood drawn annually starting from year 6 up to year 10 after booster vaccination (for those subjects boostered before V48P7E1 study start, the blood draw occurred annually starting from \>6 years up to \>10 years after booster vaccination).

    Other: Blood draw

  • Other
    TBE_C Group

    Subjects who had previously received the Tick borne encephalitis (TBE) primary vaccination according to conventional (C) schedule i.e., on days 0, 28 (+10) and 300 (+21) in the parent study (V48P7) and were administered 1 booster dose of Encepur adults in the first extension study, V48P7E1 (NCT00387634), were included in this group. Subjects had blood drawn annually starting from year 6 up to year 10 after booster vaccination.

    Other: Blood draw

  • Other
    TBE_AC Group

    Subjects who had previously received the Tick borne encephalitis (TBE) primary vaccination according to accelerated conventional (AC) schedule i.e., on days 0, 14 (+3) and 300 (+21) in the parent study (V48P7) and were administered 1 booster dose of Encepur adults in the first extension study, V48P7E1 (NCT00387634), were included in this group. Subjects had blood drawn annually starting from year 6 up to year 10 after booster vaccination.

    Other: Blood draw

Interventions

  • OtherBlood draw

    Annual blood draw at years 6 (Visit 18), 7 (Visit 19), 8 (Visit 20), 9 (Visit 21) and 10 (Visit 22)

06

What researchers measure

Primary outcomes

  1. Percentage of Subjects With Detectable TBE Antibody Titers Greater Than or Equal to (≥) 2

    Antibody titers were measured by GlaxoSmithKline (GSK) neutralizing antibody (NT) assay.

    Time frame: At Year 6

  2. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 7

  3. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 8

  4. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 9

  5. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 10

  6. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 6

  7. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 7

  8. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 8

  9. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 9

  10. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10

    Antibody titers were measured by GSK NT assay.

    Time frame: At Year 10

  11. Evaluation of Geometric Mean Antibody Titers (GMTs)

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate Geometric Mean Ratios (GMRs). Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  12. Evaluation of GMTs

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  13. Evaluation of GMTs

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At year 8

  14. Evaluation of GMTs

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  15. Evaluation of GMTs

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  16. Geometric Mean Ratios (GMRs) Calculated to Pre Booster Baselines

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 6

  17. GMRs Calculated to Pre Booster Baselines

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 7

  18. GMRs Calculated to Pre Booster Baselines

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 8

  19. GMRs Calculated to Pre Booster Baselines

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 9

  20. GMRs Calculated to Pre Booster Baselines

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 10

  21. GMRs Calculated to Post Booster Baselines

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  22. GMRs Calculated to Post Booster Baselines

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  23. GMRs Calculated to Post Booster Baselines

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  24. GMRs Calculated to Post Booster Baselines

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  25. GMRs Calculated to Post Booster Baselines

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  26. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 6

  27. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 7

  28. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 8

  29. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 9

  30. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 10

  31. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 6

  32. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 7

  33. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 8

  34. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 9

  35. Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

    Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

    Time frame: At Year 10

  36. Evaluation of GMTs in the Age Group of 15-49 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  37. Evaluation of GMTs in the Age Group of 15-49 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  38. Evaluation of GMTs in the Age Group of 15-49 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  39. Evaluation of GMTs in the Age Group of 15-49 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  40. Evaluation of GMTs in the Age Group of 15-49 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  41. Evaluation of GMTs in the Age Group of ≥ 50 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  42. Evaluation of GMTs in the Age Group of ≥ 50 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  43. Evaluation of GMTs in the Age Group of ≥ 50 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  44. Evaluation of GMTs in the Age Group of ≥ 50 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  45. Evaluation of GMTs in the Age Group of ≥ 50 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  46. Evaluation of GMTs in the Age Group of ≥ 60 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  47. Evaluation of GMTs in the Age Group of ≥ 60 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  48. Evaluation of GMTs in the Age Group of ≥ 60 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  49. Evaluation of GMTs in the Age Group of ≥ 60 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  50. Evaluation of GMTs in the Age Group of ≥ 60 Years

    GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  51. GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 6

  52. GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 7

  53. GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 8

  54. GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 9

  55. GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 10

  56. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 6

  57. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 7

  58. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 8

  59. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 9

  60. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 10

  61. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 6

  62. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 7

  63. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 8

  64. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 9

  65. GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

    Time frame: At Year 10

  66. GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  67. GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  68. GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  69. GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  70. GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  71. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  72. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  73. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  74. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  75. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

  76. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 6

  77. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 7

  78. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 8

  79. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 9

  80. GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

    GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

    Time frame: At Year 10

07

Results

Posted Aug 31, 2018

Participant flow

Subjects who completed V48P7E1 study having received primary vaccination according to rapid (R), conventional (C) or accelerated conventional (AC) schedule were included in the study. Since modified conventional (MC) had not been accepted by health authorities as primary vaccination schedule, this group from V48P7 was not enrolled in this study.

Participant flow — Overall Study
MilestoneTBE_R GroupTBE_C GroupTBE_AC Group
Started4851106
Completed434999
Not completed527
Withdrew: Did not meet entry criteria203
Withdrew: Did not comply with blood draw schedule101
Withdrew: Unavailable serological results022
Withdrew: Protocol forbidden concomitant vaccine101
Withdrew: Protocol forbidden medication100

Outcome measures

PrimaryPercentage of Subjects With Detectable TBE Antibody Titers Greater Than or Equal to (≥) 2

Antibody titers were measured by GlaxoSmithKline (GSK) neutralizing antibody (NT) assay.

Time frame:
At Year 6
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers Greater Than or Equal to (≥) 2
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers Greater Than or Equal to (≥) 295.83 (85.75 to 99.49)100.0 (93.02 to 100.0)97.17 (91.95 to 99.41)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 7
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 293.75 (82.80 to 98.69)100.0 (93.02 to 100.0)95.28 (89.33 to 98.45)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 8
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 289.58 (77.34 to 96.53)98.04 (89.55 to 99.95)93.40 (86.87 to 97.30)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 9
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 289.58 (77.34 to 96.53)94.12 (83.76 to 98.77)92.45 (85.67 to 96.69)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 10
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 289.58 (77.34 to 96.53)96.08 (86.54 to 99.52)93.40 (86.87 to 97.30)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 6
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 1095.83 (85.75 to 99.49)100.0 (93.02 to 100.0)97.17 (91.95 to 99.41)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 7
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 1093.75 (82.80 to 98.69)100.0 (93.02 to 100.0)95.28 (89.33 to 98.45)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 8
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 1089.58 (77.34 to 96.53)98.04 (89.55 to 99.95)92.45 (85.67 to 96.69)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 9
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 1089.58 (77.34 to 96.53)94.12 (83.76 to 98.77)92.45 (85.67 to 96.69)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10

Antibody titers were measured by GSK NT assay.

Time frame:
At Year 10
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 1089.58 (77.34 to 96.53)94.12 (83.76 to 98.77)93.40 (86.87 to 97.30)
PrimaryEvaluation of Geometric Mean Antibody Titers (GMTs)

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate Geometric Mean Ratios (GMRs). Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Titers
Evaluation of Geometric Mean Antibody Titers (GMTs)
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (28 to 208)228 (149 to 348)228 (170 to 307)
Baseline GMT post booster467 (325 to 670)1135 (799 to 1611)985 (771 to 1257)
GMT Year 6292 (184 to 463)293 (187 to 458)221 (162 to 302)
PrimaryEvaluation of GMTs

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Titers
Evaluation of GMTs
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (28 to 208)228 (149 to 348)228 (170 to 307)
Baseline GMT post booster467 (325 to 670)1135 (799 to 1611)985 (771 to 1257)
GMT Year 7295 (180 to 484)343 (212 to 555)254 (182 to 355)
PrimaryEvaluation of GMTs

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At year 8
Reported as:
Geometric mean · Titers
Evaluation of GMTs
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (28 to 208)228 (149 to 348)228 (170 to 307)
Baseline GMT post booster467 (325 to 670)1135 (799 to 1611)985 (771 to 1257)
GMT Year 8134 (79 to 227)211 (127 to 352)155 (109 to 221)
PrimaryEvaluation of GMTs

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Titers
Evaluation of GMTs
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (28 to 208)228 (149 to 348)228 (170 to 307)
Baseline GMT post booster467 (325 to 670)1135 (799 to 1611)985 (771 to 1257)
GMT Year 9211 (119 to 375)214 (122 to 374)194 (131 to 285)
PrimaryEvaluation of GMTs

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Titers
Evaluation of GMTs
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (28 to 208)228 (149 to 348)228 (170 to 307)
Baseline GMT post booster467 (325 to 670)1135 (799 to 1611)985 (771 to 1257)
GMT Year 10166 (94 to 295)245 (140 to 428)180 (122 to 265)
PrimaryGeometric Mean Ratios (GMRs) Calculated to Pre Booster Baselines

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
Geometric Mean Ratios (GMRs) Calculated to Pre Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
Geometric Mean Ratios (GMRs) Calculated to Pre Booster Baselines6.73 (3.23 to 14.02)1.28 (0.94 to 1.75)0.99 (0.8 to 1.23)
PrimaryGMRs Calculated to Pre Booster Baselines

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines3.85 (1.48 to 10)1.51 (1.01 to 2.25)1.13 (0.85 to 1.5)
PrimaryGMRs Calculated to Pre Booster Baselines

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines0.67 (0.23 to 1.91)0.93 (0.6 to 1.44)0.69 (0.51 to 0.95)
PrimaryGMRs Calculated to Pre Booster Baselines

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines1.08 (0.33 to 3.53)0.94 (0.57 to 1.54)0.85 (0.6 to 1.21)
PrimaryGMRs Calculated to Pre Booster Baselines

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines0.76 (0.26 to 2.24)1.08 (0.68 to 1.69)0.8 (0.59 to 1.1)
PrimaryGMRs Calculated to Post Booster Baselines

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines0.63 (0.46 to 0.86)0.26 (0.19 to 0.35)0.22 (0.18 to 0.28)
PrimaryGMRs Calculated to Post Booster Baselines

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines0.63 (0.41 to 0.96)0.3 (0.2 to 0.46)0.25 (0.19 to 0.34)
PrimaryGMRs Calculated to Post Booster Baselines

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines0.29 (0.18 to 0.47)0.19 (0.12 to 0.3)0.16 (0.11 to 0.22)
PrimaryGMRs Calculated to Post Booster Baselines

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines0.45 (0.27 to 0.77)0.19 (0.11 to 0.32)0.2 (0.14 to 0.28)
PrimaryGMRs Calculated to Post Booster Baselines

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines0.36 (0.21 to 0.6)0.22 (0.13 to 0.36)0.18 (0.13 to 0.26)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 6
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 294.29 (80.84 to 99.30)100.0 (90.97 to 100.0)96.30 (89.56 to 99.23)
≥ 50 years: Antibody Titers ≥ 2100.0 (75.29 to 100.0)100.0 (73.54 to 100.0)100.0 (86.28 to 100.0)
≥ 60 years: Antibody Titers ≥ 2100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 7
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 291.43 (76.94 to 98.20)100.0 (90.97 to 100.0)93.83 (86.18 to 97.97)
≥ 50 years: Antibody Titers ≥ 2100.0 (75.29 to 100.0)100.0 (73.54 to 100.0)100.0 (86.28 to 100.0)
≥ 60 years: Antibody Titers ≥ 2100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 8
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 288.57 (73.26 to 96.80)97.44 (86.52 to 99.94)92.59 (84.57 to 97.23)
≥ 50 years: Antibody Titers ≥ 292.31 (63.97 to 99.81)100.0 (73.54 to 100.0)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 2100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 9
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 288.57 (73.26 to 96.80)92.31 (79.13 to 98.38)91.36 (83.00 to 96.45)
≥ 50 years: Antibody Titers ≥ 292.31 (63.97 to 99.81)100.0 (73.54 to 100.0)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 2100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 10
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 2 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 288.57 (73.26 to 96.80)94.87 (82.68 to 99.37)92.59 (84.57 to 97.23)
≥ 50 years: Antibody Titers ≥ 292.31 (63.97 to 99.81)100.0 (73.54 to 100.0)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 2100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 6
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 1094.29 (80.84 to 99.30)100.0 (90.97 to 100.0)96.30 (89.56 to 99.23)
≥ 50 years: Antibody Titers ≥ 10100.0 (75.29 to 100.0)100.0 (73.54 to 100.0)100.0 (86.28 to 100.0)
≥ 60 years: Antibody Titers ≥ 10100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 7
Reported as:
Number · Number of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups
Number of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 1091.43 (76.94 to 98.20)100.0 (90.97 to 100.0)93.83 (86.18 to 97.97)
≥ 50 years: Antibody Titers ≥ 10100.0 (75.29 to 100.0)100.0 (73.54 to 100.0)100.0 (86.28 to 100.0)
≥ 60 years: Antibody Titers ≥ 10100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 8
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 1088.57 (73.26 to 96.80)97.44 (86.52 to 99.94)91.36 (83.00 to 96.45)
≥ 50 years: Antibody Titers ≥ 1092.31 (63.97 to 99.81)100.0 (73.54 to 100.0)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 10100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 9
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 1088.57 (73.26 to 96.80)92.31 (79.13 to 98.38)91.36 (83.00 to 96.45)
≥ 50 years: Antibody Titers ≥ 1092.31 (63.97 to 99.81)100.0 (73.54 to 100.0)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 10100.0 (39.76 to 100.0)100.0 (29.24 to 100.0)100.0 (59.04 to 100.0)
PrimaryPercentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups

Age groups defined based on age at entry to V48P7E1 study: 15 to 49 years, ≥ 50 years, and ≥ 60 years.

Time frame:
At Year 10
Reported as:
Number · Percentage of subjects
Percentage of Subjects With Detectable TBE Antibody Titers ≥ 10 by Age Groups
Percentage of subjectsTBE_R GroupTBE_C GroupTBE_AC Group
15-49 years: Antibody Titers ≥ 1088.57 (73.26 to 96.80)94.87 (82.68 to 99.37)92.59 (84.57 to 97.23)
≥ 50 years: Antibody Titers ≥ 1092.31 (63.97 to 99.81)91.67 (61.52 to 99.79)96.00 (79.65 to 99.90)
≥ 60 years: Antibody Titers ≥ 10100.0 (39.76 to 100.0)66.67 (9.43 to 99.16)100.0 (59.04 to 100.0)
PrimaryEvaluation of GMTs in the Age Group of 15-49 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of 15-49 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (27 to 215)253 (153 to 417)263 (185 to 375)
Baseline GMT post booster638 (413 to 984)1299 (861 to 1959)1008 (757 to 1343)
GMT Year 6332 (186 to 593)341 (197 to 590)235 (160 to 344)
PrimaryEvaluation of GMTs in the Age Group of 15-49 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of 15-49 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (27 to 215)253 (153 to 417)263 (185 to 375)
Baseline GMT post booster638 (413 to 984)1299 (861 to 1959)1008 (757 to 1343)
GMT Year 7304 (164 to 564)384 (214 to 691)250 (166 to 375)
PrimaryEvaluation of GMTs in the Age Group of 15-49 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of 15-49 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (27 to 215)253 (153 to 417)263 (185 to 375)
Baseline GMT post booster638 (413 to 984)1299 (861 to 1959)1008 (757 to 1343)
GMT Year 8151 (80 to 287)219 (119 to 402)160 (105 to 243)
PrimaryEvaluation of GMTs in the Age Group of 15-49 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of 15-49 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (27 to 215)253 (153 to 417)263 (185 to 375)
Baseline GMT post booster638 (413 to 984)1299 (861 to 1959)1008 (757 to 1343)
GMT Year 9218 (107 to 443)211 (108 to 413)191 (120 to 305)
PrimaryEvaluation of GMTs in the Age Group of 15-49 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of 15-49 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster76 (27 to 215)253 (153 to 417)263 (185 to 375)
Baseline GMT post booster638 (413 to 984)1299 (861 to 1959)1008 (757 to 1343)
GMT Year 10188 (92 to 382)266 (136 to 520)200 (126 to 319)
PrimaryEvaluation of GMTs in the Age Group of ≥ 50 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 50 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—163 (77 to 348)145 (86 to 244)
Baseline GMT post booster201 (111 to 364)733 (395 to 1361)914 (595 to 1403)
GMT Year 6207 (107 to 401)178 (89 to 355)183 (114 to 295)
PrimaryEvaluation of GMTs in the Age Group of ≥ 50 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 50 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—163 (77 to 348)145 (86 to 244)
Baseline GMT post booster201 (111 to 364)733 (395 to 1361)914 (595 to 1403)
GMT Year 7272 (126 to 588)237 (107 to 528)270 (155 to 470)
PrimaryEvaluation of GMTs in the Age Group of ≥ 50 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 50 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—163 (77 to 348)145 (86 to 244)
Baseline GMT post booster201 (111 to 364)733 (395 to 1361)914 (595 to 1403)
GMT Year 898 (39 to 245)189 (73 to 492)142 (73 to 275)
PrimaryEvaluation of GMTs in the Age Group of ≥ 50 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 50 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—163 (77 to 348)145 (86 to 244)
Baseline GMT post booster201 (111 to 364)733 (395 to 1361)914 (595 to 1403)
GMT Year 9193 (74 to 505)224 (82 to 609)202 (101 to 403)
PrimaryEvaluation of GMTs in the Age Group of ≥ 50 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 50 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—163 (77 to 348)145 (86 to 244)
Baseline GMT post booster201 (111 to 364)733 (395 to 1361)914 (595 to 1403)
GMT Year 10119 (47 to 302)189 (72 to 496)129 (66 to 251)
PrimaryEvaluation of GMTs in the Age Group of ≥ 60 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 60 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—64 (13 to 316)69 (24 to 197)
Baseline GMT post booster173 (71 to 425)573 (203 to 1616)498 (253 to 982)
GMT Year 6189 (52 to 688)96 (22 to 427)76 (29 to 202)
PrimaryEvaluation of GMTs in the Age Group of ≥ 60 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 60 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—64 (31 to 316)69 (24 to 197)
Baseline GMT post booster173 (71 to 425)573 (203 to 1616)498 (253 to 982)
GMT Year 7133 (26 to 677)120 (18 to 789)105 (31 to 360)
PrimaryEvaluation of GMTs in the Age Group of ≥ 60 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 60 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—64 (13 to 316)69 (24 to 197)
Baseline GMT post booster173 (71 to 425)573 (203 to 1616)498 (253 to 982)
GMT Year 8128 (26 to 620)81 (13 to 504)71 (21 to 234)
PrimaryEvaluation of GMTs in the Age Group of ≥ 60 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 60 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—64 (13 to 316)69 (24 to 197)
Baseline GMT post booster173 (71 to 425)573 (203 to 1616)498 (253 to 982)
GMT Year 9224 (52 to 965)67 (12 to 362)128 (42 to 385)
PrimaryEvaluation of GMTs in the Age Group of ≥ 60 Years

GMTs by visit were tabulated for each vaccine schedule. Baselines pre booster and post booster vaccination titers were used as denominators to calculate GMRs. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start). Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Titers
Evaluation of GMTs in the Age Group of ≥ 60 Years
TitersTBE_R GroupTBE_C GroupTBE_AC Group
Baseline GMT pre booster—64 (13 to 316)69 (24 to 197)
Baseline GMT post booster173 (71 to 425)573 (203 to 1616)498 (253 to 982)
GMT Year 10181 (35 to 928)57 (9 to 377)72 (21 to 248)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years6.73 (3.02 to 15.01)1.35 (0.92 to 1.98)0.92 (0.7 to 1.2)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years3.85 (1.34 to 11.04)1.52 (0.92 to 2.52)0.96 (0.68 to 1.38)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years0.67 (0.22 to 2.08)0.87 (0.5 to 1.49)0.62 (0.42 to 0.91)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years1.08 (0.3 to 3.88)0.84 (0.45 to 1.54)0.73 (0.47 to 1.12)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of 15-49 Years0.76 (0.24 to 2.48)1.05 (0.6 to 1.85)0.78 (0.52 to 1.16)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years—1.09 (0.75 to 1.59)1.27 (0.98 to 1.64)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years—1.45 (1.01 to 2.1)1.87 (1.45 to 2.41)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years—1.16 (0.62 to 2.17)0.98 (0.63 to 1.52)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years—1.37 (0.71 to 2.65)1.39 (0.88 to 2.21)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 50 Years—1.16 (0.63 to 2.12)0.89 (0.58 to 1.35)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years—1.5 (0.76 to 2.97)1.1 (0.7 to 1.72)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years—1.88 (0.97 to 3.64)1.52 (0.99 to 2.35)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years—1.27 (0.44 to 3.66)1.03 (0.51 to 2.05)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years—1.05 (0.37 to 2.94)1.85 (0.94 to 3.64)
PrimaryGMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using pre booster vaccination titers as baseline. Pre booster vaccination titer: GMT at Day 0 of V48P7E1 prior to booster vaccine administration (excluding subjects who received the booster before V48P7E1 study start).

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Pre Booster Baselines in the Age Group of ≥ 60 Years—0.89 (0.39 to 2.06)1.04 (0.6 to 1.81)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years0.52 (0.35 to 0.78)0.26 (0.18 to 0.38)0.23 (0.18 to 0.3)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years0.48 (0.28 to 0.81)0.3 (0.18 to 0.49)0.24 (0.17 to 0.35)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years0.24 (0.13 to 0.43)0.17 (0.1 to 0.3)0.16 (0.11 to 0.23)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years0.34 (0.18 to 0.66)0.16 (0.09 to 0.3)0.19 (0.12 to 0.3)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of 15-49 Years0.29 (0.15 to 0.56)0.2 (0.11 to 0.38)0.2 (0.13 to 0.3)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years1.03 (0.7 to 1.52)0.24 (0.16 to 0.37)0.2 (0.15 to 0.27)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years1.36 (0.79 to 2.33)0.32 (0.18 to 0.57)0.3 (0.2 to 0.44)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years0.49 (0.23 to 1.04)0.26 (0.12 to 0.57)0.16 (0.09 to 0.27)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years0.96 (0.44 to 2.08)0.31 (0.14 to 0.68)0.22 (0.13 to 0.39)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 50 Years0.59 (0.28 to 1.24)0.26 (0.12 to 0.55)0.14 (0.08 to 0.24)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 6
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years1.09 (0.47 to 2.55)0.17 (0.06 to 0.45)0.15 (0.08 to 0.29)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 7
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years0.77 (0.21 to 2.86)0.21 (0.05 to 0.96)0.21 (0.08 to 0.57)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 8
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years0.74 (0.2 to 2.72)0.14 (0.03 to 0.64)0.14 (0.05 to 0.38)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 9
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years1.29 (0.43 to 3.84)0.12 (0.03 to 0.41)0.26 (0.11 to 0.58)
PrimaryGMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years

GMR values were tabulated by vaccine schedule using post booster vaccination titers as baseline. Post booster vaccination titer: GMT at Day 21 of V48P7E1 (for subjects who received booster in V48P7E1); Day 0 for subjects who received booster before V48P7E1 study start.

Time frame:
At Year 10
Reported as:
Geometric mean · Ratios
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years
RatiosTBE_R GroupTBE_C GroupTBE_AC Group
GMRs Calculated to Post Booster Baselines in the Age Group of ≥ 60 Years1.05 (0.31 to 3.49)0.1 (0.02 to 0.4)0.14 (0.06 to 0.36)

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
TBE_R Group———
TBE_C Group———
TBE_AC Group———

Baseline characteristics

Age, Continuous
Age, Continuous(Years)TBE_R GroupTBE_C GroupTBE_AC GroupTotal
Mean42.7 ± 15.2541.8 ± 14.3442.4 ± 14.3542.3 ± 14.49
Sex: Female, Male
Sex: Female, Male(Participants)TBE_R GroupTBE_C GroupTBE_AC GroupTotal
Female243255111
Male24195194
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)TBE_R GroupTBE_C GroupTBE_AC GroupTotal
White4851106205
08

Study locations

1 site
  • GSK Investigational Site
    Hradec Kralove, 50002, Czechia
09

References and documents

Publications

  • Beran J, Lattanzi M, Xie F, Moraschini L, Galgani I. Second five-year follow-up after a booster vaccination against tick-borne encephalitis following different primary vaccination schedules demonstrates at least 10 years antibody persistence. Vaccine. 2019 Jul 26;37(32):4623-4629. doi: 10.1016/j.vaccine.2017.12.081. Epub 2018 Feb 1. PubMed 29397225 ↗
10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2012 to primary completion in Sep 2016, 54 months.

Results were first posted in Aug 2018, 1 year 11 months after primary completion.

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

Registered
Mar 13, 2012
First posted
Mar 23, 2012
StartActual
Mar 8, 2012
Primary completionActual
Sep 30, 2016
CompletionActual
Sep 30, 2016
Results first posted
Aug 31, 2018
Last update
Aug 12, 2021
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 Aug 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01562444
Lead sponsor
GlaxoSmithKline
Collaborators
Novartis Vaccines
Responsible party
Sponsor
First posted
Mar 23, 2012
Start date
Mar 8, 2012
Primary completion
Sep 30, 2016
Completion
Sep 30, 2016
Results posted
Aug 31, 2018
Last update
Aug 12, 2021

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 ↗

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