A Study to Evaluate the Impact of Stopping Treatment for the Prevention of Pneumonia in HIV-Positive Patients Receiving Anti-HIV Drugs Who Have Increased CD4 Cell Counts

June 23, 2005 updated by: National Institute of Allergy and Infectious Diseases (NIAID)

Impact of Discontinuing PCP Prophylaxis in Subjects Receiving Antiretroviral Therapies Who Have Had Increases in CD4 Counts to > 200 Cells/mm3

The purpose of this study is to see how often Pneumocystis carinii pneumonia (PCP) occurs in HIV-positive patients who have stopped taking medications that help prevent PCP.

The risk of developing PCP may be decreased when an HIV-positive patient's CD4 cell counts (cells of the immune system which fight infection) are more than 200 cells/mm3. This study looks at whether it is acceptable to stop PCP prevention treatment in these patients.

Study Overview

Status

Completed

Conditions

Detailed Description

The risk of developing PCP may be decreased with treatment-induced recovery of CD4 counts to > 200 cells/mm3. Few data exist to confirm or negate the continued necessity of PCP prophylaxis for such patients. This study will assess the effects of discontinuing therapy.

Subjects are asked to discontinue PCP prophylaxis if antiretroviral therapy has resulted in a sustained CD4 increase greater than 200 cells/mm3 on two measurements at least 12 weeks apart. They will be evaluated for symptoms and CD4 counts every 8 weeks as well as plasma for HIV-RNA every 16 weeks for 18 months. Subjects whose CD4 count falls to less than 150 cells/mm3 or between 150 and 200 cells/mm3 will have the CD4 count re-evaluated immediately or within 4 weeks. If the second CD4 count is less than 200 cells/mm3 for either case, conventional PCP prophylaxis will be resumed and the subject will be followed on study. Subjects will be followed during study by physical exams and laboratory tests at Weeks 4, 8, and every 8 weeks thereafter.

Study Type

Observational

Enrollment

250

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Puerto Rico
      • San Juan, Puerto Rico, 009365067
        • Univ of Puerto Rico
  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35294
        • Univ of Alabama at Birmingham
    • California
      • Harbor City, California, United States, 90710
        • Kaiser Foundation Hosp
      • Los Angeles, California, United States, 900331079
        • Univ of Southern California / LA County USC Med Ctr
      • Los Angeles, California, United States, 90027
        • Kaiser Permanente LAMC
      • Menlo Park, California, United States, 94025
        • Willow Clinic
      • San Diego, California, United States, 921036325
        • Univ of California / San Diego Treatment Ctr
      • San Francisco, California, United States, 941102859
        • San Francisco AIDS Clinic / San Francisco Gen Hosp
      • San Francisco, California, United States, 941102859
        • San Francisco Gen Hosp
      • San Jose, California, United States, 951282699
        • Santa Clara Valley Med Ctr / AIDS Community Rsch Consortium
      • San Rafael, California, United States, 94903
        • Marin County Specialty Clinic
      • Stanford, California, United States, 943055107
        • San Mateo AIDS Program / Stanford Univ
      • Stanford, California, United States, 943055107
        • Stanford Univ Med Ctr
    • Colorado
      • Denver, Colorado, United States, 80262
        • Univ of Colorado Health Sciences Ctr
    • District of Columbia
      • Washington, District of Columbia, United States, 20059
        • Howard Univ
    • Florida
      • Miami, Florida, United States, 331361013
        • Univ of Miami School of Medicine
    • Georgia
      • Atlanta, Georgia, United States, 30308
        • Emory Univ
    • Hawaii
      • Honolulu, Hawaii, United States, 96816
        • Queens Med Ctr
      • Honolulu, Hawaii, United States, 96816
        • Univ of Hawaii / Leahi Hosp
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern Univ Med School
      • Chicago, Illinois, United States, 60612
        • Rush Presbyterian - Saint Luke's Med Ctr
      • Chicago, Illinois, United States, 60612
        • Cook County Hosp
      • Chicago, Illinois, United States, 60640
        • Louis A Weiss Memorial Hosp
    • Indiana
      • Indianapolis, Indiana, United States, 462025250
        • Indiana Univ Hosp
      • Indianapolis, Indiana, United States, 46202
        • Methodist Hosp of Indiana / Life Care Clinic
      • Indianapolis, Indiana, United States, 46202
        • Division of Inf Diseases/ Indiana Univ Hosp
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins Hosp
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Harvard (Massachusetts Gen Hosp)
      • Boston, Massachusetts, United States, 02118
        • Boston Med Ctr
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess - West Campus
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess Med Ctr
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Univ of Minnesota
    • Missouri
      • St. Louis, Missouri, United States, 63112
        • St Louis Regional Hosp / St Louis Regional Med Ctr
    • Nebraska
      • Omaha, Nebraska, United States, 681985130
        • Univ of Nebraska Med Ctr
    • New York
      • Buffalo, New York, United States, 14215
        • SUNY / Erie County Med Ctr at Buffalo
      • New York, New York, United States, 10003
        • Beth Israel Med Ctr
      • New York, New York, United States, 10021
        • Cornell Univ Med Ctr
      • New York, New York, United States, 10016
        • Bellevue Hosp / New York Univ Med Ctr
      • New York, New York, United States, 10029
        • Mount Sinai Med Ctr
      • New York, New York, United States, 10021
        • Chelsea Ctr
      • Rochester, New York, United States, 14642
        • Univ of Rochester Medical Center
      • Rochester, New York, United States, 14642
        • St Mary's Hosp (Univ of Rochester/Infectious Diseases)
    • North Carolina
      • Chapel Hill, North Carolina, United States, 275997215
        • Univ of North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke Univ Med Ctr
    • Ohio
      • Cincinnati, Ohio, United States, 452670405
        • Univ of Cincinnati
      • Cincinnati, Ohio, United States, 45267
        • Univ of Kentucky Lexington
      • Cleveland, Ohio, United States, 44106
        • Case Western Reserve Univ
      • Cleveland, Ohio, United States, 441091998
        • MetroHealth Med Ctr
      • Columbus, Ohio, United States, 432101228
        • Ohio State Univ Hosp Clinic
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Univ of Pennsylvania at Philadelphia
      • Philadelphia, Pennsylvania, United States, 19104
        • Philadelphia Veterans Administration Med Ctr
      • Pittsburgh, Pennsylvania, United States, 15213
        • Univ of Pittsburgh Med Ctr
    • South Carolina
      • West Columbia, South Carolina, United States, 29169
        • Julio Arroyo
    • Washington
      • Seattle, Washington, United States, 98104
        • Univ of Washington

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

13 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

You may be eligible for this study if you:

  • Are HIV-positive.
  • Have had 1 CD4 cell count of less than 100 cells/mm3 and have never had PCP, or have had at least 2 CD4 cell counts over 200 cells/mm3 and have had PCP within 6 months prior to study entry.
  • Have received PCP prevention medication within 3 months of study entry.
  • Are at least 13 years old (need consent if under 18).
  • Are taking anti-HIV (antiretroviral) medication at study entry.

Exclusion Criteria

You will not be eligible for this study if you:

  • Have active PCP or symptoms of PCP within 2 weeks of study entry.
  • Have a fever lasting more than 2 weeks.
  • Have oral candidiasis (thrush).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Natural History

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Investigators

  • Study Chair: Alison Heald
  • Study Chair: Robert Murphy

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

First Submitted

November 2, 1999

First Submitted That Met QC Criteria

August 30, 2001

First Posted (Estimate)

August 31, 2001

Study Record Updates

Last Update Posted (Estimate)

June 24, 2005

Last Update Submitted That Met QC Criteria

June 23, 2005

Last Verified

February 1, 2003

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ACTG 888

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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