Condition (MeSH)
Encephalitis, Arbovirus
ClinicalTrials.gov lists 146 trials for Encephalitis, Arbovirus or a narrower condition beneath it. Pfizer has the most among industry and government lead sponsors, with 19.
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Trials per phase (log scale)
1 more section with rows
When did Encephalitis, Arbovirus trials start? (27)
Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.
Trials over time, by phase
- Phase 1
- Phase 1/2
- Phase 2
- Phase 2/3
- Phase 3
- Phase 4
- Not applicable
- Observational
Top of scale: 20
Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.
| Year | Trials started |
|---|---|
| 2026 (partial year) | 1 |
| 2025 | 7 |
| 2024 | 7 |
| 2023 | 2 |
| 2022 | 3 |
| 2021 | 4 |
| 2020 | 2 |
| 2019 | 3 |
| 2018 | 1 |
| 2017 | 2 |
Showing 10 of 27 earlier years.
No forecast is made for this condition: it averages 4.0 trial starts a year over the five years to September, under the 5 a year the method needs.
Prediction, not a registry value: median of 36 months from start to primary completion across 5 trials still running at the 2026-10-09 snapshot; registered median of 17 months across 93 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.
What phase are Encephalitis, Arbovirus trials in? (9)
Shown in this order: phase order.
Show the trials by phase as a table
| Phase | Trials |
|---|---|
| Phase 1 | 14 |
| Phase 1/2 | 1 |
| Phase 2 | 32 |
| Phase 2/3 | 3 |
| Phase 3 | 39 |
| Phase 4 | 31 |
| Not applicable | 5 |
| Observational | 20 |
| Expanded access | 1 |
How many Encephalitis, Arbovirus trials are recruiting? (8)
Shown in this order: the order a trial moves through, from not yet recruiting to unknown.
| Status | Trials |
|---|---|
| Not yet recruiting | 5 |
| Recruiting | 6 |
| Active, not recruiting | 3 |
| Completed | 104 |
| Terminated | 3 |
Showing 5 of 8 statuses.
Status as registered on ClinicalTrials.gov. Each trial is counted once.
Which lead sponsors run the most Encephalitis, Arbovirus trials? (11)
Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.
| Sponsor | Trials |
|---|---|
| Pfizer | 19 |
| Valneva Austria GmbH | 15 |
| Sanofi Pasteur, a Sanofi Company | 13 |
| National Institute of Allergy and Infectious Diseases (NIAID) | 7 |
| Sanofi | 7 |
Showing 5 of 11 sponsors.
Which drugs are being tested for Encephalitis, Arbovirus? (2)
Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.
| Drug | Trials |
|---|---|
| IC51 | 16 |
| Yellow Fever Vaccine | 3 |
Interventions as named in the registry (13)
Shown in this order: most trials first.
| Drug | Trials |
|---|---|
| Tick-Borne Encephalitis (TBE) Vaccine (Inactivated) | 13 |
| IMOJEV | 4 |
| Japanese Encephalitis purified inactivated vaccine | 3 |
| JEVAX | 3 |
| Symptomatic therapy | 3 |
Showing 5 of 13 interventions.
These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.
Which serious adverse events do Encephalitis, Arbovirus trials report? (10)
Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.
| Adverse event | Subjects affected | Trials |
|---|---|---|
| Gastroenteritis | 101 | 13 |
| Pneumonia | 75 | 12 |
| Febrile convulsion | 59 | 10 |
| Bronchitis | 39 | 7 |
| Viral infection | 22 | 5 |
Showing 5 of 10 adverse events.
Which publications cover Encephalitis, Arbovirus? (3)
Shown in this order: major-topic papers first, then newest, then most linked to trials.
| Publication | Journal | Year | Major topic |
|---|---|---|---|
| Flavivirus encephalitis. | The New England journal of medicine | 2004 | Yes |
| Pathogenesis of flavivirus encephalitis. | Advances in virus research | 2003 | Yes |
| Rural epidemic encephalitis in Venezuela caused by a group A arbovirus (VEE). | Progress in medical virology. Fortschritte der medizinischen Virusforschung. Progres en virologie medicale | 1967 | Yes |
Sub-conditions in MeSH (4)
MeSH descendants one level down with at least one trial, most trials first.
Not on this page
Not measured: delivery record.
Checked, with nothing recorded for this condition: prevalence and rare-disease identity.