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Condition (MeSH)

Animal Diseases

ClinicalTrials.gov lists 297 trials for Animal Diseases or a narrower condition beneath it. National Institute of Allergy and Infectious Diseases (NIAID) has the most among industry and government lead sponsors, with 66.

MeSH D000820 Animal Diseases C22
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Phase 1 Phase 1 68 Phase 1/2 Phase 1/2 18 Phase 2 Phase 2 53 Phase 2/3 Phase 2/3 4 Phase 3 Phase 3 21 Phase 4 Phase 4 7 Not applicable Not applicable 42 Observational Observational 83 Phase 1 Phase 1 68 Phase 1/2 Phase 1/2 18 Phase 2 Phase 2 53 Phase 2/3 Phase 2/3 4 Phase 3 Phase 3 21 Phase 4 Phase 4 7 Not applicable Not applicable 42 Observational Observational 83

Trials per phase (log scale)

1 more section with rows

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When did Animal Diseases trials start? (25)

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: 30

1997: 1 trials (Phase 1/2 1) 2000: 1 trials (Phase 3 1) 2004: 3 trials (Observational 1, Phase 2 1, Phase 1 1) 2005: 6 trials (Observational 1, Phase 2 1, Phase 1/2 2, Phase 1 2) 2006: 14 trials (Observational 1, Not applicable 1, Phase 2 3, Phase 1/2 3, Phase 1 6) 2007: 18 trials (Observational 4, Not applicable 1, Phase 2 6, Phase 1/2 1, Phase 1 6) 2008: 10 trials (Not applicable 1, Phase 4 1, Phase 3 1, Phase 2 2, Phase 1 5) 2009: 7 trials (Observational 2, Not applicable 1, Phase 2 1, Phase 1/2 2, Phase 1 1) 2010: 12 trials (Observational 1, Phase 3 1, Phase 2 2, Phase 1/2 1, Phase 1 7) 2011: 11 trials (Observational 1, Not applicable 1, Phase 3 3, Phase 2/3 1, Phase 1 5) 2012: 8 trials (Observational 1, Phase 4 1, Phase 1 6) 2013: 11 trials (Observational 1, Not applicable 2, Phase 3 1, Phase 2 4, Phase 1 3) 2014: 6 trials (Observational 1, Phase 3 2, Phase 2 2, Phase 1 1) 2015: 3 trials (Observational 1, Not applicable 1, Phase 1 1) 2016: 8 trials (Observational 2, Phase 3 1, Phase 2 3, Phase 1/2 1, Phase 1 1) 2017: 11 trials (Observational 2, Not applicable 1, Phase 3 1, Phase 2/3 1, Phase 2 2, Phase 1/2 1, Phase 1 3) 2018: 15 trials (Observational 3, Phase 3 1, Phase 2 8, Phase 1 3) 2019: 5 trials (Observational 2, Not applicable 1, Phase 1/2 1, Phase 1 1) 2020: 5 trials (Observational 2, Not applicable 1, Phase 2/3 1, Phase 1 1) 2021: 8 trials (Observational 4, Not applicable 1, Phase 2/3 1, Phase 1 2) 2022: 24 trials (Observational 12, Not applicable 5, Phase 3 1, Phase 2 3, Phase 1 3) 2023: 19 trials (Observational 6, Not applicable 5, Phase 4 1, Phase 3 3, Phase 2 2, Phase 1/2 2) 2024: 25 trials (Observational 16, Not applicable 3, Phase 4 2, Phase 2 2, Phase 1/2 1, Phase 1 1) 2025: 30 trials (Observational 10, Not applicable 5, Phase 4 1, Phase 3 3, Phase 2 6, Phase 1/2 1, Phase 1 4)

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.

Trials started per year
Year Trials started
2026 (partial year) 19
2025 30
2024 25
2023 19
2022 24
2021 8
2020 5
2019 5
2018 15
2017 11

Forecast of the full-year count, planned starts included, not rows of this table: about 25 trials starting in 2026 and about 28 in 2027, the average of the 24 months through September, counted as registered and carried forward, with about 0.7 times the starts already registered for the rest of 2026 added. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 15 percent and ran about 1 percent high against the count later registered; forecasts made before the year began were off by about 26 percent and ran about 20 percent low against the count later registered. The part-way figures are from forecasts that used a multiple fitted only on earlier years. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Prediction, not a registry value: median of 23 months from start to primary completion across 27 trials still running at the 2026-10-09 snapshot; registered median of 15 months across 179 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Animal Diseases trials in? (9)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 68
Phase 1/2 18
Phase 2 53
Phase 2/3 4
Phase 3 21
Phase 4 7
Not applicable 42
Observational 83
Expanded access 1

How many Animal Diseases trials are recruiting? (10)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 11
Recruiting 35
Enrolling by invitation 7
Active, not recruiting 16
Available 1

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most Animal Diseases trials? (9)

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.

Lead sponsors
Sponsor Trials
National Institute of Allergy and Infectious Diseases (NIAID) 66
Novartis Vaccines 8
U.S. Army Medical Research and Development Command 5
Seqirus 4
ANRS, Emerging Infectious Diseases 3

Which drugs are being tested for Animal Diseases? (3)

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.

Drugs tested
Drug Trials
AS03 10
Nitazoxanide 6
IMVAMUNE 6

Interventions as named in the registry (12)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
MF59 Adjuvant 4
MF59 4
Inactivated Influenza A/H5N1 Vaccine (Chiron) 4
VRC-AVIDNA036-00-VP 4
1% Azithromycin 3

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 Animal Diseases trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Hospitalisation 96 2
Osteoarthritis 20 2
Atrial fibrillation 17 2
HIDRADENITIS 14 2
Pneumonia 13 5

Which publications cover Animal Diseases? (9)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Publications
Publication Journal Year Major topic
Confidence limits for prevalence of disease adjusted for estimated sensitivity and specificity. Preventive veterinary medicine 2014 Yes
Analysis of the economic impact of cystic echinococcosis in Spain. Bulletin of the World Health Organization 2010 Yes
Staphylococcus aureus host specificity: comparative genomics of human versus animal isolates by multi-strain microarray. Microbiology (Reading, England) 2008 Yes
Biological basis of the behavior of sick animals. Neuroscience and biobehavioral reviews 1988 Yes
Experimental infections of chimpanzees with human rhinovirus types 14 and 43. Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) 1968 Yes

Sub-conditions in MeSH (15)

MeSH descendants one level down with at least one trial, most trials first.

+5 more sub-conditions

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence and rare-disease identity.

Browse all condition evidence pages