Last reviewed · How we verify
Phase 1 Study of the Safety and Immunogenicity of Tick-Borne Langat/Dengue 4 Chimera (LGT(TP21)/DEN4), a Live Attenuated Vaccine for Tick-Borne Encephalitis
Tick-borne encephalitis (TBE) is a viral illness common in the Northern Hemisphere, especially Europe and Asia. TBE infection may lead to central nervous system problems and death. The purpose of this study is to test the safety of and immune response to a TBE vaccine in healthy adults. The vaccine is related to a live attenuated virus developed against dengue virus infection.
Details
| Lead sponsor | National Institute of Allergy and Infectious Diseases (NIAID) |
|---|---|
| Phase | Phase 1 |
| Status | COMPLETED |
| Enrolment | 28 |
| Start date | 2005-07 |
| Completion | 2007-07 |
Conditions
- Tick-Borne Encephalitis
Interventions
- LGT(TP21)/DEN4
- Placebo
Primary outcomes
- Frequency of vaccine-related adverse effects, graded by intensity and severity through active and passive surveillance — Throughout study
- Immunogenicity of vaccine against anti-Langat neutralizing antibody — At Days 0, 28, 42, and 180
Countries
United States