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Chlamydia Infections clinical trials

The registry lists 134 studies for Chlamydia Infections across more than 10 countries. 23 are recruiting or about to start. 46 of them are mainly about Chlamydia Infections (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its narrower condition Trachoma too: 167 studies, 26 open.

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Status

Completed
88
Recruiting
14
Terminated
11
Not yet recruiting
9
Status unknown
5
Withdrawn
4

Phase

Phase 4
18
Phase 3
16
Phase 2
8
Phase 1
4

Where

United States
79
United Kingdom
6
Ethiopia
3
Canada
3
Australia
3
Botswana
3

Who runs them

University of California, San Francisco (10) · National Institute of Allergy and Infectious Diseases (NIAID) (9) · Centers for Disease Control and Prevention (6) · Northwestern University (5) · University of Pittsburgh (4) · University of California, Los Angeles (4) · National Heart, Lung, and Blood Institute (NHLBI) (4) · University of Washington (3)

What is being tested here

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

DrugOpenPhase 3All
Doxycycline347
Azithromycin037
Metronidazole011
Rifampin011
Solithromycin011
Ceftriaxone001
Penicillin G Benzathine001
Penicillin G001
Cefixime011
Cellulose011

Coming up

2phase 3 studies under way
7studies 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 7, phase 3 first

Who these studies take

Of the 14 Chlamydia Infections studies recruiting now, 6 (43%) set no upper age limit and 7 (50%) stop at 75 or younger. 9 (64%) take children under 18. 5 (36%) are for women only and 2 (14%) for men only; 10 (71%) take healthy volunteers.

Recruiting studies that take each age, of 14
AgeWomenMen
102 (14%)1 (7%)
1812 (86%)8 (57%)
309 (64%)6 (43%)
408 (57%)5 (36%)
507 (50%)4 (29%)
657 (50%)4 (29%)
757 (50%)4 (29%)
856 (43%)3 (21%)

Across all 134 studies, recruiting or not: 42% stop at 75 or younger and 40% at 65; 56% take children; 32% are for women only and 22% for men only; 63% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Chlamydia Infections studies take

Of 26 interventional studies with no phase under Chlamydia Infections, half reached primary completion within 24 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Interventional, no phase24 mo11–41 · 26 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.

Results posted1

Newly registered2

Studies

Recruiting first, then most recently updated. Showing 50 of 134. Browse all 134 → or search them.