Toxoplasmosis clinical trials

The registry lists 29 studies for Toxoplasmosis across more than 10 countries. 8 are recruiting or about to start. 17 of them are mainly about Toxoplasmosis (how this is decided). Per ClinicalTrials.gov, last updated 2026-01-16.

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Status

Completed: 16
Not yet recruiting: 4
Recruiting: 4
Status unknown: 3
Withdrawn: 1
Terminated: 1

Phase

Phase 1: 4
Phase 3: 2
Phase 4: 2
Phase 2: 1

Where

United States: 10
France: 7
Egypt: 5
Canada: 1
Tanzania: 1
Czechia: 1

Who runs them

National Institute of Allergy and Infectious Diseases (NIAID) (6) · Sohag University (4) · University Hospital, Clermont-Ferrand (1) · Singh, Ranjan Kumar, M.D. (1) · Shahid Beheshti University of Medical Sciences (1) · Palo Alto Medical Foundation (1) · Nicolaus Copernicus University (1) · Benha University (1)

What is being tested here

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

Drug	Open	Phase 3	All
Pyrimethamine	1	0	6
Leucovorin	1	0	1
Sulfadiazine	1	0	1
Clindamycin	0	1	2
Zidovudine	0	1	1
Valproic Acid	0	0	1
Azithromycin	0	0	1
Atovaquone	0	0	1
Dexamethasone	0	1	1

Who these studies take

Of the 4 Toxoplasmosis studies recruiting now, 2 (50%) set no upper age limit and 1 (25%) stop at 75 or younger. 2 (50%) take children under 18. 1 (25%) are for women only and 0 (0%) for men only; 0 (0%) take healthy volunteers.

Recruiting studies that take each age, of 4
Age	Women	Men
10	2 (50%)	2 (50%)
18	4 (100%)	3 (75%)
30	4 (100%)	3 (75%)
40	4 (100%)	3 (75%)
50	4 (100%)	3 (75%)
65	3 (75%)	3 (75%)
75	3 (75%)	3 (75%)
85	3 (75%)	3 (75%)

Across all 29 studies, recruiting or not: 31% stop at 75 or younger and 24% at 65; 62% take children; 10% are for women only and 3% for men only; 21% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

Studies

Recruiting first, then most recently updated. Showing 29 of 29. search them.