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Completed No phase listed Observational

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

ClinicalTrials.gov ID: NCT00000908

Public ClinicalTrials.gov record NCT00000908. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:42 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

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

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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 identification

NCT ID
NCT00000908
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Enrollment
250 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
13 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Not listed
Primary completion
Not listed
Completion
Not listed
Last update posted
Jun 24, 2005

United States locations

U.S. sites
53
U.S. states
20
U.S. cities
33
Facility City State ZIP Site status
Univ of Alabama at Birmingham Birmingham Alabama 35294 —
Kaiser Foundation Hosp Harbor City California 90710 —
Kaiser Permanente LAMC Los Angeles California 90027 —
Univ of Southern California / LA County USC Med Ctr Los Angeles California 900331079 —
Willow Clinic Menlo Park California 94025 —
Univ of California / San Diego Treatment Ctr San Diego California 921036325 —
San Francisco AIDS Clinic / San Francisco Gen Hosp San Francisco California 941102859 —
San Francisco Gen Hosp San Francisco California 941102859 —
Santa Clara Valley Med Ctr / AIDS Community Rsch Consortium San Jose California 951282699 —
Marin County Specialty Clinic San Rafael California 94903 —
San Mateo AIDS Program / Stanford Univ Stanford California 943055107 —
Stanford Univ Med Ctr Stanford California 943055107 —
Univ of Colorado Health Sciences Ctr Denver Colorado 80262 —
Howard Univ Washington D.C. District of Columbia 20059 —
Univ of Miami School of Medicine Miami Florida 331361013 —
Emory Univ Atlanta Georgia 30308 —
Queens Med Ctr Honolulu Hawaii 96816 —
Univ of Hawaii / Leahi Hosp Honolulu Hawaii 96816 —
Northwestern Univ Med School Chicago Illinois 60611 —
Cook County Hosp Chicago Illinois 60612 —
Rush Presbyterian - Saint Luke's Med Ctr Chicago Illinois 60612 —
Louis A Weiss Memorial Hosp Chicago Illinois 60640 —
Indiana Univ Hosp Indianapolis Indiana 462025250 —
Division of Inf Diseases/ Indiana Univ Hosp Indianapolis Indiana 46202 —
Methodist Hosp of Indiana / Life Care Clinic Indianapolis Indiana 46202 —
Johns Hopkins Hosp Baltimore Maryland 21287 —
Harvard (Massachusetts Gen Hosp) Boston Massachusetts 02114 —
Boston Med Ctr Boston Massachusetts 02118 —
Beth Israel Deaconess - West Campus Boston Massachusetts 02215 —
Beth Israel Deaconess Med Ctr Boston Massachusetts 02215 —
Univ of Minnesota Minneapolis Minnesota 55455 —
St Louis Regional Hosp / St Louis Regional Med Ctr St Louis Missouri 63112 —
Univ of Nebraska Med Ctr Omaha Nebraska 681985130 —
SUNY / Erie County Med Ctr at Buffalo Buffalo New York 14215 —
Beth Israel Med Ctr New York New York 10003 —
Bellevue Hosp / New York Univ Med Ctr New York New York 10016 —
Chelsea Ctr New York New York 10021 —
Cornell Univ Med Ctr New York New York 10021 —
Mount Sinai Med Ctr New York New York 10029 —
St Mary's Hosp (Univ of Rochester/Infectious Diseases) Rochester New York 14642 —
Univ of Rochester Medical Center Rochester New York 14642 —
Univ of North Carolina Chapel Hill North Carolina 275997215 —
Duke Univ Med Ctr Durham North Carolina 27710 —
Univ of Cincinnati Cincinnati Ohio 452670405 —
Univ of Kentucky Lexington Cincinnati Ohio 45267 —
Case Western Reserve Univ Cleveland Ohio 44106 —
MetroHealth Med Ctr Cleveland Ohio 441091998 —
Ohio State Univ Hosp Clinic Columbus Ohio 432101228 —
Philadelphia Veterans Administration Med Ctr Philadelphia Pennsylvania 19104 —
Univ of Pennsylvania at Philadelphia Philadelphia Pennsylvania 19104 —
Univ of Pittsburgh Med Ctr Pittsburgh Pennsylvania 15213 —
Julio Arroyo West Columbia South Carolina 29169 —
Univ of Washington Seattle Washington 98104 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00000908, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 24, 2005 · Synced Oct 20, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00000908 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →