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The DC Cohort Longitudinal HIV Status Neutral Study

RecruitingObservational studyHealthy volunteers welcome

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

Who can join

All ages · All sexes · Healthy volunteers welcome

Full eligibility 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

About the study

The goal of the DC Cohort is to establish a clinic-based city-wide longitudinal cohort that will describe clinical outcomes, and improve the quality of care for patients diagnosed with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) or at higher risk for acquiring HIV and receiving care in Washington, DC.

Sponsor: George Washington University · Participants: 19,000 · Started: 2011-01

Contact the study team

Amanda D Castel, MD, MPH · Phone: 202-994-8325
Megan O'Brien, PhD, MPH · Phone: 202-994-2034

Official record on ClinicalTrials.gov — NCT01206920

Locations in the U.S.

District of Columbia

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

Conditions

From ClinicalTrials.gov, data retrieved Oct 2, 2026. Each study sets its own eligibility; the study team decides who can join.