District Of Columbia is currently home to 851 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Washington, Washington, D.C., Washington DC and Washington, Dc. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Hepatic Histopathology in Urea Cycle Disorders
Recruiting
This is a multi-site, retrospective chart review as well as a prospective study to evaluate histopathologic findings in liver samples from individuals with any UCD diagnosis. This study will be conducted at all Urea Cycle Disorders Consortium (UCDC) sites: Baylor College of Medicine in Houston, TX and Children's National Medical Center in Washington D.C.
Gender:
ALL
Ages:
All
Trial Updated:
07/17/2025
Locations: Children's National Medical Center, Washington, District of Columbia
Conditions: Urea Cycle Disorder, Ornithine Transcarbamylase Deficiency, Citrullinemia 1, ARGI Deficiency, ASL Deficiency, Argininosuccinic Aciduria, ASS Deficiency, Hyperargininemia, Carbamyl Phosphate Synthetase Deficiency, NAGS Deficiency
Patient-provider Decision Aid for HIV Post-exposure Prophylaxis Following Sexual Assault
Recruiting
The goal of this trial is to pilot a digital, interactive patient-provider HIV PEP decision aid. The decision aid will incorporate five sections of content: 1) key clinical factors input by providers; 2) tailored multimedia-based HIV risk sharing information; 3) standardized multimedia educational messaging regarding the effectiveness, risks, and benefits of HIV PEP; 4) direct comparisons of priorities (e.g., physical well-being - "I want to do everything I can to prevent HIV," privacy - "I don'... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/17/2025
Locations: District of Columbia Forensic Nurse Examiners, Washington, District of Columbia
Conditions: Hiv
A Multicentre, Randomised, Double-blind, Parallel Group, Placebo-controlled, Time-to-first Asthma Exacerbation Phase III Efficacy and Safety Study of Benralizumab in Paediatric Patients With Severe Eosinophilic Asthma (DOMINICA)
Recruiting
A study to evaluate the efficacy and safety of benralizumab administered subcutaneously in patients ≥ 6 to \< 18 years of age with severe eosinophilic asthma, including a well-documented history of asthma exacerbations and uncontrolled asthma receiving high-dose inhaled corticosteroid (ICS) plus at least one additional controller medication.
Gender:
ALL
Ages:
Between 6 years and 18 years
Trial Updated:
07/16/2025
Locations: Research Site, Washington, District of Columbia
Conditions: Asthma
EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease
Recruiting
The purpose of this clinical trial is to learn about the safety, pharmacokinetics (pharmacokinetics helps us understand how the drug is changed and eliminated from your body after you take it), and efficacy (how well a study treatment works in the study) of the study medicine (called nirmatrelvir/ritonavir) for potential treatment of coronavirus disease 2019 (COVID-19). The study medicine will be given to patients under 18 years of age with COVID-19 that are not hospitalized but are at risk for... Read More
Gender:
ALL
Ages:
Between 0 years and 17 years
Trial Updated:
07/16/2025
Locations: Children's National Medical Center, Washington, District of Columbia
Conditions: COVID-19
A Phase 3 Study to Evaluate Petosemtamab Plus Pembrolizumab vs Pembrolizumab in First-line Treatment of Head and Neck Cancer (LiGeR - HN1)
Recruiting
This is a Phase 3 randomized, open-label study to evaluate the efficacy and safety of petosemtamab plus pembrolizumab vs pembrolizumab in first-line treatment of recurrent or metastatic PD-L1+ head and neck squamous cell carcinoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Site 108, Washington, District of Columbia
Conditions: Head and Neck Squamous Cell Carcinoma
A Study to Evaluate the Effectiveness of Long-acting (LA) Cabotegravir (CAB) + Rilpivirine (RPV) LA When Given to Participants With Detectable HIV-1
Recruiting
This study will assess how effective, safe, and long-lasting a long-acting antiretroviral therapy (ART) using CAB LA + RPV LA is for people with HIV who still have detectable virus levels despite being on oral ART. The study will also consider feedback from patients on their experience with this treatment.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
07/16/2025
Locations: GSK Investigational Site, Washington, District of Columbia
Conditions: HIV Infections
A Study of NVL-330 in Patients With Advanced or Metastatic HER2-altered NSCLC (HEROEX-1)
Recruiting
Phase 1a/1b dose escalation and expansion study designed to evaluate the safety and tolerability of NVL-330, determine the recommended Phase 2 dose (RP2D), and evaluate the antitumor activity in patients with advanced or metastatic HER2-altered NSCLC. Phase 1a dose escalation is designed to assess the safety and tolerability of NVL-330 and to select the candidate RP2D(s) and, if applicable, the MTD. Phase 1b expansion is designed to further evaluate the overall safety and tolerability of the c... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: Georgetown University Medical Center, Washington, District of Columbia
Conditions: Locally Advanced Solid Tumor, Metastatic Solid Tumor
Testing of Tazemetostat in Combination With Topotecan and Pembrolizumab in Patients With Recurrent Small Cell Lung Cancer
Recruiting
This phase I trial tests the safety, side effects, and best dose of tazemetostat in combination with topotecan and pembrolizumab in treating patients with small cell lung cancer that has come back after a period of improvement (recurrent). Tazemetostat may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as topotecan, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/16/2025
Locations: MedStar Georgetown University Hospital, Washington, District of Columbia
Conditions: Extensive Stage Lung Small Cell Carcinoma, Limited Stage Lung Small Cell Carcinoma, Platinum-Resistant Lung Small Cell Carcinoma, Platinum-Sensitive Lung Small Cell Carcinoma, Recurrent Lung Small Cell Carcinoma, Recurrent Extensive Stage Lung Small Cell Carcinoma
Effect of Empagliflozin on Podocyte Specific Proteins in African American Veterans With NDKD
Recruiting
Primary Objective:To study podocyte specific injury markers in African American Veterans with non-diabetic kidney disease(NDKD), on empagliflozin therapy. Primary Endpoint: Assess the effect of Empagliflozin on podocyte-specific proteins in exosomes isolated from subjects' urine, such as nephrin, podocalyxin and Wilms'Tumor (WT-1) protein. Secondary Objective: 1. Correlate changes in exosome-based podocyte specific proteins with standardized biomarkers of kidney injury including urine albumin... Read More
Gender:
ALL
Ages:
Between 19 years and 90 years
Trial Updated:
07/16/2025
Locations: Washington DC Veterans Affairs Medical Center (688), Washington, District of Columbia
Conditions: Chronic Kidney Diseases
Observational Study of Pediatric Rheumatic Diseases: The CARRA Registry
Recruiting
Continuation of the CARRA Registry as described in the protocol will support data collection on patients with pediatric-onset rheumatic diseases. The CARRA Registry will form the basis for future CARRA studies. In particular, this observational registry will be used to answer pressing questions about therapeutics used to treat pediatric rheumatic diseases, including safety questions.
Gender:
ALL
Ages:
21 years and below
Trial Updated:
07/15/2025
Locations: Childrens National Medical Center, Washington, District of Columbia
Conditions: Rheumatic Joint Disease
Collecting Blood and Tissue Sample Donations for Research for HIV/AIDS-Related Cancers
Recruiting
This study collects blood and tissue samples for research of human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS)-related cancers. Collecting blood and tissue samples and studying biomarkers in the laboratory may help doctors to learn how are biologic or genetic factors related to HIV and cancers that occur commonly in people living with HIV.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/15/2025
Locations: George Washington University, Washington, District of Columbia
Conditions: Anal Carcinoma, Hematopoietic and Lymphoid Cell Neoplasm, HIV Infection, Kaposi Sarcoma, Lymphoma, Malignant Solid Neoplasm, Multicentric Castleman Disease, Plasmablastic Lymphoma, Recurrent Kaposi Sarcoma, Recurrent Lymphoma, Recurrent Plasmablastic Lymphoma, Transplant-Related Kaposi Sarcoma
Prevention of Postpartum Hemorrhage With Tranexamic Acid
Recruiting
In part 1 of the study, the investigators conducted a prospective, open-label, dose finding pharmacokinetic (PK) study in 43 pregnant 3rd trimester women scheduled for non-emergent cesarean section. The investigators administered three doses of the drug (5 mg/kg, 10 mg/kg and 15 mg/kg) in an escalating fashion by cohort with the lowest dose first. The drug was administered intravenously at the time of umbilical cord clamping for a non-emergent cesarean section. A maximum of 1 gram was administe... Read More
Gender:
FEMALE
Ages:
Between 18 years and 50 years
Trial Updated:
07/15/2025
Locations: George Washington University Hospital, Washington, District of Columbia
Conditions: Post Partum Hemorrhage