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Trial NCT00000666

Resource URI: http://static.linkedct.org/resource/trials/NCT00000666
PropertyValue
linkedct:brief_title A Randomized Prospective Study of Pyrimethamine Therapy for Prevention of Toxoplasmic Encephalitis in HIV-Infected Individuals With Serologic Evidence of Latent Toxoplasma Gondii Infection
linkedct:condition <http://static.linkedct.org/resource/condition/13147>
linkedct:condition <http://static.linkedct.org/resource/condition/5486>
linkedct:criteria Inclusion Criteria Concurrent Medication: Required: - Prophylactic treatment for Pneumocystis carinii pneumonia with aerosolized pentamidine, dapsone, or trimethoprim / sulfamethoxazole. Allowed: - Most medications not specifically excluded. Prior Medication: Allowed: - Antivirals. - Antiretrovirals. Patients: - Must be HIV positive or have an AIDS-defining illness OR be at known risk for HIV infection and have a CD4 cell count < 200/mm3 and no other known immunosuppressive disease. - Must have positive titer for Toxoplasma gondii. - Must be or become a patient of a CPCRA physician. - May participate in other clinical trials as long as there is no potential activity against Toxoplasma gondii or cross-toxicity among study drugs. Exclusion Criteria Co-existing Condition: Patients with the following conditions or symptoms are excluded: - History of ocular, pulmonary, or central nervous system (CNS) toxicity. - CNS lesions. - Neurologic deficits except peripheral neuropathy. - Mild, moderate, severe, or end-stage AIDS dementia complex. Grade 3 or higher nausea and/or vomiting. - Sensitivity to pyrimethamine. Concurrent Medication: Excluded: - On-going therapy with clindamycin, fansidar, methotrexate, trimetrexate, spiramycin, azithromycin, clarithromycin, 566C80, and/or sulfa agents other than anti-PCP agents. Patients with the following are excluded: - History of ocular, pulmonary, or central nervous system (CNS) toxicity. - CNS lesions or history of CNS lesions. - Neurologic deficits except peripheral neuropathy. - Mild, moderate, severe, or end-stage AIDS dementia complex. Grade 3 or higher nausea and/or vomiting. - Sensitivity to pyrimethamine.
linkedct:description Toxoplasmic encephalitis is a major cause of illness and death in AIDS patients. Standard treatment for toxoplasmic encephalitis is to combine pyrimethamine and sulfadiazine. Continuous treatment is necessary to prevent recurrence of the disease, but constant use of pyrimethamine/sulfadiazine is associated with toxicity. Clindamycin has been shown to be effective in treatment of toxoplasmic encephalitis in animal studies. This study evaluates pyrimethamine as a preventive treatment against toxoplasmic encephalitis (per 3/26/91 amendment, clindamycin arm was discontinued). Patients are randomized to receive pyrimethamine or placebo three times a week. All patients must be on aerosolized pentamidine, trimethoprim / sulfamethoxazole (T/S), or dapsone for Pneumocystis carinii pneumonia prophylaxis. Patients will be evaluated bi-weekly for the first month and every other month thereafter for at least 24 months.
linkedct:download_date Information obtained from ClinicalTrials.gov on December 30, 2009
linkedct:eligibility_gender Both
linkedct:eligibility_healthy_volunteers No
linkedct:eligibility_maximum_age N/A
linkedct:eligibility_minimum_age 13 Years
linkedct:enrollment 600 (xsd:int)
linkedct:firstreceived_date November 2, 1999
linkedct:id NCT00000666
rdfs:label Trial NCT00000666
linkedct:lastchanged_date June 23, 2005
linkedct:lead_sponsor_agency National Institute of Allergy and Infectious Diseases (NIAID)
linkedct:location <http://static.linkedct.org/resource/location/150296>
linkedct:location <http://static.linkedct.org/resource/location/151109>
linkedct:location <http://static.linkedct.org/resource/location/152885>
linkedct:location <http://static.linkedct.org/resource/location/154166>
linkedct:location <http://static.linkedct.org/resource/location/154383>
linkedct:location <http://static.linkedct.org/resource/location/155171>
linkedct:location <http://static.linkedct.org/resource/location/161395>
linkedct:location <http://static.linkedct.org/resource/location/164759>
linkedct:location <http://static.linkedct.org/resource/location/170093>
linkedct:location <http://static.linkedct.org/resource/location/186746>
linkedct:location <http://static.linkedct.org/resource/location/186921>
linkedct:location <http://static.linkedct.org/resource/location/193211>
linkedct:location <http://static.linkedct.org/resource/location/197294>
linkedct:location <http://static.linkedct.org/resource/location/205394>
linkedct:location <http://static.linkedct.org/resource/location/215978>
linkedct:location <http://static.linkedct.org/resource/location/218901>
linkedct:nct_id NCT00000666
linkedct:number_of_arms 0 (xsd:int)
linkedct:number_of_groups 0 (xsd:int)
linkedct:official_title A Randomized Prospective Study of Pyrimethamine Therapy for Prevention of Toxoplasmic Encephalitis in HIV-Infected Individuals With Serologic Evidence of Latent Toxoplasma Gondii Infection
linkedct:org_study_id CPCRA 001
linkedct:overall_official <http://static.linkedct.org/resource/overall_official/24562>
linkedct:overall_official <http://static.linkedct.org/resource/overall_official/5889>
linkedct:overall_status Completed
linkedct:oversight <http://static.linkedct.org/resource/oversight/2918>
foaf:page <http://clinicaltrials.gov/show/NCT00000666>
linkedct:phase N/A
linkedct:reference <http://static.linkedct.org/resource/reference/18856>
linkedct:reference <http://static.linkedct.org/resource/reference/31161>
linkedct:reference <http://static.linkedct.org/resource/reference/47498>
linkedct:source National Institute of Allergy and Infectious Diseases (NIAID)
linkedct:study_design Prevention, Parallel Assignment
linkedct:study_type Interventional
linkedct:summary To evaluate pyrimethamine as a prophylactic agent against toxoplasmic encephalitis in individuals who are coinfected with HIV and latent Toxoplasma gondii. Toxoplasmic encephalitis is a major cause of illness and death in AIDS patients. Standard treatment for toxoplasmic encephalitis is to combine pyrimethamine and sulfadiazine. Continuous treatment is necessary to prevent recurrence of the disease, but constant use of pyrimethamine/sulfadiazine is associated with toxicity. Clindamycin has been shown to be effective in treatment of toxoplasmic encephalitis in animal studies. This study evaluates pyrimethamine as a preventive treatment against toxoplasmic encephalitis (per 3/26/91 amendment, clindamycin arm was discontinued).
rdf:type linkedct:trials
linkedct:verification_date November 1998