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Herpes Simplex clinical trials

The registry lists 166 studies for Herpes Simplex across more than 10 countries. 12 are recruiting or about to start. 98 of them are mainly about Herpes Simplex (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-09. Counting its 2 narrower conditions too, such as Herpes Genitalis: 260 studies, 17 open.

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Status

Completed
127
Recruiting
10
Status unknown
10
Terminated
8
Withdrawn
8
Not yet recruiting
1

Phase

Phase 1
36
Phase 2
34
Phase 3
34
Phase 4
13

Where

United States
95
Canada
17
United Kingdom
12
Belgium
8
Germany
8
Australia
7

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (20) · GlaxoSmithKline (16) · University of Washington (8) · Genocea Biosciences, Inc. (6) · Maruho Europe Limited (5) · Glaxo Wellcome (4) · National Center for Research Resources (NCRR) (4) · University of Alabama at Birmingham (4)

What is being tested here

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

DrugOpenPhase 3All
Acyclovir21743
Benzoyl Peroxide101
Esketamine101
Valacyclovir0623
ASP2151027
Famciclovir047
GEN-003005
Foscarnet014
Pritelivir013
Ganciclovir003

Coming up

1phase 3 study under way
6studies finish main data collection within a year

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

All 6

Who these studies take

Of the 10 Herpes Simplex studies recruiting now, 4 (40%) set no upper age limit and 1 (10%) stop at 75 or younger. 6 (60%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 2 (20%) take healthy volunteers.

Recruiting studies that take each age, of 10
AgeWomenMen
104 (40%)4 (40%)
1810 (100%)10 (100%)
3010 (100%)10 (100%)
4010 (100%)10 (100%)
5010 (100%)10 (100%)
6510 (100%)10 (100%)
759 (90%)9 (90%)
858 (80%)8 (80%)

Across all 166 studies, recruiting or not: 47% stop at 75 or younger and 43% at 65; 37% take children; 10% are for women only and 5% for men only; 32% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

What changed recently

From the registry's own updates since Oct 11, 2026.

Results posted1

Studies

Recruiting first, then most recently updated. Showing 50 of 166. Browse all 166 → or search them.