Clinical trial Recruiting at 14 sites Observational

Creating a city-wide cohort of HIV-infected individuals in Washington, DC

Official title: Development of a City-Wide Cohort of HIV-Infected Persons in Care in the District of Columbia: The DC Cohort

Run by George Washington University · NCT01206920 · Data updated 2026-11-12

This study is creating a big database of people living with HIV in Washington, DC, to help improve their care and health outcomes by collecting and sharing important information from different clinics.

More AIDS trials

Quick facts

Study typeObservational
SexAll
Enrollment19000 (estimated)
SponsorGeorge Washington University
Academic / other
Locations14 sites (Washington D.C., District of Columbia and 13 other locations)
StatusRecruiting
StartedJanuary 2011
Main results expectedJanuary 2041
Study endsJanuary 2041
Registry record updatedFebruary 2, 2026
Trial IDNCT01206920 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this cohort are individuals aged 18 and older receiving care for HIV at participating clinics in Washington, DC.

Probably not a fit

Patients who are unable or refuse to provide informed consent, or minors unaware of their HIV status, may not benefit from this cohort.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

The DC Cohort aims to establish a comprehensive, clinic-based longitudinal database of HIV-infected individuals receiving care in Washington, DC. This initiative will involve major community and academic clinics, collecting data on socio-demographics, risk factors, treatments, diagnoses, and clinical outcomes. The cohort will facilitate routine reporting and analytic support to improve the quality of care and clinical outcomes for patients with HIV/AIDS. By comparing data across various clinics, the project seeks to enhance understanding and management of HIV in the region.

Why it matters

Potential benefit: If successful, this cohort could significantly improve the quality of care and clinical outcomes for HIV-infected patients in Washington, DC.

How similar studies have gone: Other studies have successfully established similar cohorts, indicating that this approach is both tested and valuable for improving HIV care.

Who can join: the full rules

Show full inclusion / exclusion criteria
Treatment Cohort Inclusion Criteria:

* Patient is receiving care for HIV at one or more of the twelve participating clinics in the DC Cohort.
* Patient is either age 18 years or older, or seeks HIV care independently and is able to understand and sign informed consent.
* Patient is a minor who is consented by a parent or legal guardian.

Treatment Cohort Exclusion Criteria:

* Patient is unable or refuses to provide informed consent.
* Minor children ages 12 through 17 who are unaware of their HIV status

Prevention Cohort Inclusion Criteria:

Persons receiving any antiretroviral prescription without evidence of HIV or Hepatitis B infection

* PrEP (e.g., TDF/FTC, Descovy, Apretude)
* Combination ART indicative of nPEP in an HIV-uninfected person
* Persons receiving an antiretroviral prescription indicative of DoxyPEP Doxycycline 200mg PO taken within 72 hrs of unprotected sexual encounter (or variations thereof where clearly not prescribed as a treatment course)
* Test positive for ≥1 bacterial STI (positive gonorrhea (GC/NG) or chlamydia (CT) test or positive syphilis test requiring treatment within one year)

  * 2 bacterial STI (GC, chlamydia, syphilis) tests at 2 or more different encounters
  * 2 HIV tests at 2 or more different encounters
* Patient requesting PrEP at their clinical visit
* Patient requesting nPEP at their clinical visit
* People who identify as injecting drugs

Patients with a Z29.81 Encounter for HIV pre-exposure prophylaxis

Where it's running

  • Kaiser Permanente Mid-Atlantic States
    Washington D.C., District of Columbia, United States
    Recruiting
  • Unity Health Care
    Washington D.C., District of Columbia, United States
    Recruiting
  • Georgetown University
    Washington D.C., District of Columbia, United States
    Recruiting
  • La Clinica Del Pueblo
    Washington D.C., District of Columbia, United States
    Recruiting
  • Whitman-Walker Health
    Washington D.C., District of Columbia, United States
    Recruiting
  • Children's National Medical Center--Pediatric Clinic
    Washington D.C., District of Columbia, United States
    Recruiting
Show 8 more locations
  • Washington Hospital Center
    Washington D.C., District of Columbia, United States
    Recruiting
  • Washington Health Institute
    Washington D.C., District of Columbia, United States
    Recruiting
  • Family and Medical Counseling Service
    Washington D.C., District of Columbia, United States
    Recruiting
  • George Washington Medical Faculty Associates
    Washington D.C., District of Columbia, United States
    Recruiting
  • Howard University Hospital--Adult Clinic
    Washington D.C., District of Columbia, United States
    Recruiting
  • Howard University Hospital--Pediatric Clinic
    Washington D.C., District of Columbia, United States
    Recruiting
  • Veterans Affairs Medical Center
    Washington D.C., District of Columbia, United States
    Recruiting
  • Us Helping Us, People into Living, Inc.
    Washington D.C., District of Columbia, United States
    Recruiting

Study contacts

  • Principal investigator: Amanda D Castel, MD, MPH — George Washington University
  • Study coordinator: Amanda D Castel, MD, MPH
  • Email: acastel@gwu.edu
  • Phone: 202-994-8325

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.