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Zika Virus Infection clinical trials

The registry lists 78 studies for Zika Virus Infection across more than 10 countries. 8 are recruiting or about to start. 53 of them are mainly about Zika Virus Infection (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-12.

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Status

Completed
58
Recruiting
4
Withdrawn
4
Status unknown
4
Terminated
3
Not yet recruiting
2

Phase

Phase 1
22
Phase 2
2
Phase 3
1

Where

United States
23
Brazil
15
Colombia
12
Puerto Rico
12
Mexico
8
Guadeloupe
5

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (12) · ModernaTX, Inc. (3) · Institut Pasteur (3) · University of Heidelberg Medical Center (3) · Oswaldo Cruz Foundation (2) · University of Notre Dame (2) · Valneva Austria GmbH (2) · Themis Bioscience GmbH (2)

Who these studies take

Of the 4 Zika Virus Infection studies recruiting now, 2 (50%) set no upper age limit and 2 (50%) stop at 75 or younger. 2 (50%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 2 (50%) take healthy volunteers.

Recruiting studies that take each age, of 4
AgeWomenMen
102 (50%)2 (50%)
184 (100%)4 (100%)
304 (100%)4 (100%)
404 (100%)4 (100%)
504 (100%)4 (100%)
654 (100%)4 (100%)
753 (75%)3 (75%)
852 (50%)2 (50%)

Across all 78 studies, recruiting or not: 59% stop at 75 or younger and 58% at 65; 47% take children; 9% are for women only and 3% for men only; 63% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Zika Virus Infection studies take

Of 21 phase 1 interventional studies under Zika Virus Infection, half reached primary completion within 15 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 115 mo8–25 · 21 studies——
Interventional, no phase17 mo7–41 · 14 studies——
Observational44 mo31–52 · 22 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

Studies

Recruiting first, then most recently updated. Showing 50 of 78. Browse all 78 → or search them.