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Vaccinia clinical trials

The registry lists 54 studies for Vaccinia across more than 10 countries. 6 are recruiting or about to start. 8 of them are mainly about Vaccinia (how this is decided). Per ClinicalTrials.gov, last updated 2026-10-21.

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

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

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

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

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Status

Completed
42
Recruiting
6
Status unknown
2
Withdrawn
2
Active, not recruiting
1
Terminated
1

Phase

Phase 1
32
Phase 2
12
Phase 3
5
Early Phase 1
1

Where

United States
38
France
6
Korea, Republic of
6
Canada
5
Germany
3
Taiwan
2

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (16) · Jennerex Biotherapeutics (7) · Emergent BioSolutions (4) · Genelux Corporation (4) · Groupe Hospitalier Sud Ile-de-France (2) · Genelux GmbH (2) · Bavarian Nordic (1) · Hangzhou Converd Co., Ltd. (1)

What is being tested here

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

DrugOpenPhase 3All
Olvimulogene nanivacirepvec105
JX-594018
HIVAC-1e005
Hepatitis B Surface Antigens002
MVA-BN smallpox vaccine011
ACAM2000001
Brincidofovir011
Tecovirimat001

Coming up

1phase 3 study under way
3studies finish main data collection within a year1 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.

All 3, phase 3 first

Who these studies take

Of the 6 Vaccinia studies recruiting now, 4 (67%) set no upper age limit and 2 (33%) stop at 75 or younger. 0 (0%) take children under 18. 1 (17%) are for women only and 0 (0%) for men only; 0 (0%) take healthy volunteers.

Recruiting studies that take each age, of 6
AgeWomenMen
100 (0%)0 (0%)
186 (100%)5 (83%)
306 (100%)5 (83%)
406 (100%)5 (83%)
506 (100%)5 (83%)
656 (100%)5 (83%)
755 (83%)4 (67%)
854 (67%)3 (50%)

Across all 54 studies, recruiting or not: 43% stop at 75 or younger and 39% at 65; 17% take children; 11% are for women only and 2% for men only; 48% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

Studies

Recruiting first, then most recently updated. Showing 50 of 54. Browse all 54 → or search them.