Completed PHASE2 INTERVENTIONAL NCT00000643

Primary Prophylaxis of Cerebral Toxoplasmosis in HIV-Infected Patients

Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Conditions HIV Infections Toxoplasmosis, Cerebral

Interventions Leucovorin calcium Pyrimethamine

Updated 7 times since 2017 Last updated: Oct 26, 2021 Completion: May 31, 1994

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A PHASE2 clinical study on HIV Infections and Toxoplasmosis, Cerebral, this trial is completed. The trial is conducted by National Institute of Allergy and Infectious Diseases (NIAID) and has accumulated 7 data snapshots since 2026. Infectious disease trials contribute critical data for public health response and treatment development.

Status Flow

Change History

7 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE2
Sep 2024 — Sep 2025 [monthly]

Completed PHASE2
Jul 2024 — Sep 2024 [monthly]

Completed PHASE2
Dec 2021 — Jul 2024 [monthly]

Completed PHASE2
Jan 2021 — Dec 2021 [monthly]

Completed PHASE2

▶ Show 2 earlier versions

Jun 2018 — Jan 2021 [monthly]

Completed PHASE2
Jan 2017 — Jun 2018 [monthly]

Completed PHASE2

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

National Institute of Allergy and Infectious Diseases (NIAID)

Data source: National Institute of Allergy and Infectious Diseases (NIAID)

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Baltimore, United States , Boston, United States , Buffalo, United States , Chapel Hill, United States , Chicago, United States , Cincinnati, United States , Cleveland, United States , Durham, United States , Indianapolis, United States , Miami, United States and 9 more locations