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Virus Diseases clinical trials

The registry lists 656 studies for Virus Diseases across more than 10 countries. 85 are recruiting or about to start. 125 of them are mainly about Virus Diseases (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-09. Counting its 82 narrower conditions too, such as COVID-19: 27,238 studies, 2,572 open.

ClinicalTrials.gov finds 28,189 studies for Virus Diseases. How that becomes 656 here

This page counts the studies the registry files under Virus Diseases, and those it files under no condition that list Virus Diseasesthemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 28,189Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −25,694Filed under a narrower condition, counted on its own pageCOVID-19 7,435 · HIV Infections 4,637 · Influenza, Human 1,940 · Acquired Immunodeficiency Syndrome 1,878 · Hepatitis C 1,504 · Burkitt Lymphoma 968 · 74 more
  3. −131List Virus Diseases as a condition, but the registry did not file them under itMost often written as “BK Virus Infection” (19), “Respiratory Viral Infection” (10), and “Human Immunodeficiency Virus Infections” (8). The registry filed 67 of them under no condition at all, and the others under other conditions only, most often Marburg Virus Disease (7) and Respiratory Tract Infections (5).
  4. −1,708Match it another way118 name it in the title, 15 in a keyword, and 1,575 by a synonym or other text the search reads.
  5. 656The count on this page

Get an email when these change. Save the Virus Diseases studies recruiting or about to start — once a week, free: studies that open, close, add sites or post results.

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What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

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· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

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Status

Completed
429
Recruiting
65
Status unknown
61
Terminated
34
Active, not recruiting
26
Withdrawn
18

Phase

Phase 2
154
Phase 1
149
Phase 3
105
Phase 4
31
Early Phase 1
5

Where

United States
277
France
47
Canada
46
United Kingdom
46
China
33
Spain
29

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (56) · ModernaTX, Inc. (47) · GlaxoSmithKline (19) · Crucell Holland BV (19) · Gilead Sciences (14) · Medicago (12) · Assistance Publique - Hôpitaux de Paris (12) · National Center for Research Resources (NCRR) (10)

What is being tested here

Drugs under test in Virus Diseases studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
BNT162 Vaccine327
Hepatitis B Virus Antisense Oligonucleotide AHB-137202
Ibuzatrelvir222
2019-nCoV Vaccine mRNA-1273159
Remdesivir133
MRNA-1283103
G 207102
Oncolytic HSV-1 G207102
Immulina101
Resiquimod101

Drug classes tested here Reverse transcriptase inhibitors 3

Coming up

7phase 3 studies under way
37studies finish main data collection within a year6 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 65 Virus Diseases studies recruiting now, 30 (46%) set no upper age limit and 23 (35%) stop at 75 or younger. 28 (43%) take children under 18. 2 (3%) are for women only and 0 (0%) for men only; 28 (43%) take healthy volunteers.

Recruiting studies that take each age, of 65
AgeWomenMen
1023 (35%)23 (35%)
1855 (85%)53 (82%)
3055 (85%)53 (82%)
4057 (88%)55 (85%)
5056 (86%)54 (83%)
6550 (77%)49 (75%)
7544 (68%)43 (66%)
8540 (62%)39 (60%)

Across all 656 studies, recruiting or not: 44% stop at 75 or younger and 39% at 65; 34% take children; 4% are for women only and 1% for men only; 44% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Virus Diseases studies take

Of 58 phase 1 interventional studies under Virus Diseases, half reached primary completion within 24 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 124 mo15–43 · 58 studies19 mo6–28 · 28 studies—
Phase 1/227 mo13–… · 18 studies——
Phase 216 mo10–30 · 58 studies13 mo10–26 · 34 studies—
Phase 314 mo8–24 · 57 studies14 mo8–24 · 40 studies—
Interventional, no phase17 mo8–34 · 61 studies—21 mo13–42 · 42 studies
Observational24 mo8–108 · 80 studies—25 mo7–108 · 73 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 13, 2026.

Started recruiting1

Newly registered2

Studies

Recruiting first, then most recently updated. Showing 50 of 656. Browse all 656 → or search them.