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Trial record 5 of 14 for:    "Toxoplasmosis" | "Pyrimethamine"

Primary Prophylaxis of Cerebral Toxoplasmosis in HIV-Infected Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT00000643
Recruitment Status : Completed
First Posted : August 31, 2001
Last Update Posted : March 30, 2012
Sponsor:
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)

Tracking Information
First Submitted Date  ICMJE November 2, 1999
First Posted Date  ICMJE August 31, 2001
Last Update Posted Date March 30, 2012
Study Start Date  ICMJE Not Provided
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE Not Provided
Original Primary Outcome Measures  ICMJE Not Provided
Change History Complete list of historical versions of study NCT00000643 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Primary Prophylaxis of Cerebral Toxoplasmosis in HIV-Infected Patients
Official Title  ICMJE Primary Prophylaxis of Cerebral Toxoplasmosis in HIV-Infected Patients
Brief Summary

To evaluate the effectiveness of pyrimethamine (given with leucovorin calcium versus placebo (an inactive substance) for the primary prophylaxis (prevention) of cerebral toxoplasmosis in HIV-infected patients.

Cerebral toxoplasmosis is one of the most frequently encountered opportunistic infections in the course of AIDS. The mortality (death) rate is estimated to be greater than 50 percent. Pyrimethamine is a drug that appears promising for the primary prevention of cerebral toxoplasmosis in HIV-infected patients.

Detailed Description

Cerebral toxoplasmosis is one of the most frequently encountered opportunistic infections in the course of AIDS. The mortality (death) rate is estimated to be greater than 50 percent. Pyrimethamine is a drug that appears promising for the primary prevention of cerebral toxoplasmosis in HIV-infected patients.

AMENDED: 04-04-91 On the first day of therapy, a loading dose is given. After the first day, patients take pyrimethamine or placebo 3 times a week. Patients also take leucovorin calcium orally three times weekly. Enrollment occurs over approximately 12 months. All patients are followed on study until a common study close-out date and final analysis of the study. It is anticipated that this common close-out will occur when the mean duration of time on study therapy will be 3 years (approximately in January, 1994).

ORIGINAL design: On the first day of treatment, patients receive a loading dose of pyrimethamine or placebo, plus of leucovorin calcium. After the first day, patients take pyrimethamine or placebo three times a week. Patients also take folinic acid orally three times weekly. The mean duration of study participation is 3 years.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Study Design  ICMJE Masking: Double
Primary Purpose: Prevention
Condition  ICMJE
  • Toxoplasmosis, Cerebral
  • HIV Infections
Intervention  ICMJE
  • Drug: Pyrimethamine
  • Drug: Leucovorin calcium
Study Arms  ICMJE Not Provided
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE
 (submitted: June¬†23,¬†2005)
150
Original Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE May 1994
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Zidovudine (AZT), didanosine (ddI), dideoxycytidine (ddC), erythropoietin (Eprex), other agents granted Treatment IND or expanded access status.
  • Investigational triazoles.
  • Pentamidine for primary prophylaxis of Pneumocystis carinii pneumonia (PCP).

Patients with the following are excluded:

  • History of cerebral toxoplasmosis or toxoplasmosis infection in any other organ or tissue.
  • Focal neural abnormalities (except peripheral neuropathy) or mass lesions on a previous computerized tomography (CT) scan or magnetic resonance image (MRI), unless subsequent workup rules out toxoplasmosis, in which case abnormalities must have been stable for at least 2 months.
  • Known or suspected allergy or severe intolerance to study drugs.

Patients must have:

  • Positive toxoplasma serology.
  • HIV infection.
  • Willingness and ability to comply with the protocol and capability of giving written informed consent.

Exclusion Criteria

Co-existing Condition:

Patients with the following conditions or symptoms are excluded:

  • Current diagnosis of cerebral toxoplasmosis or toxoplasmosis infection in any other organ or tissue.
  • Known or suspected allergy or severe intolerance to study drugs.

Concurrent Medication:

Excluded:

  • Anticoagulants. Other antifolates, sulfonamides, fansidar, macrolides, 5-fluorouracil, dapsone, or any other agent with known activity against Toxoplasma gondii.
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 13 Years and older   (Child, Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT00000643
Other Study ID Numbers  ICMJE ACTG 154
11129 ( Registry Identifier: DAIDS ES Registry Number )
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party National Institute of Allergy and Infectious Diseases (NIAID)
Study Sponsor  ICMJE National Institute of Allergy and Infectious Diseases (NIAID)
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Chair: BJ Luft
Study Chair: JL Vilde
PRS Account National Institute of Allergy and Infectious Diseases (NIAID)
Verification Date March 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP