Clinical trials: Exposure
Pre-Exposure Prophylaxis, HIV Infections
PrEPARE: PrEP in Pregnancy, Accelerating Reach and Efficiency
This study tests strategies for improving PrEP implementation in maternal and child health clinics using a difference-in-difference approach.
- Conditions
- Pre-Exposure Prophylaxis, HIV Infections, Pregnancy Related
- Trial name
- NCT04712994
- Testing
- PrEP Optimization Interventions
- Where
- 8 sites in Kenya
- Volunteers
- 1,958 people, healthy volunteers welcome
- Sponsor
- University of Washington
COPD, COPD Exacerbation
Effectiveness of Low-Dose Theophylline for the Management of Biomass-Associated COPD
Chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death worldwide, and over 90% of COPD-related deaths occurring in low- and middle-income countries (LMICs).
- Conditions
- COPD, COPD Exacerbation, COPD Exacerbation Acute, Pollution Related Respiratory Disorder
- Trial name
- NCT03984188
- Testing
- Theophylline ER, Standard of Care Treatment
- Where
- 2 sites in Uganda
- Volunteers
- 100 people
- Sponsor
- University of Miami
Pre-exposure Prophylaxis
Electronic Pre-exposure Prophylaxis (PrEP) Initiation and Maintenance Home Care System
The premise for the study is that a tailored approach for rural young men who have sex with men (YMSM), addressing known barriers of transportation, access to providers, and privacy, is most likely to yield high levels of…
- Trial name
- ePrEP (NCT03729570)
- Testing
- ePrEP
- Where
- 4 sites in United States
- Volunteers
- 217 people, healthy volunteers welcome
- Sponsor
- Emory University
Asthma in Children, Pollution; Exposure
AIM to Improve Asthma: Airflow Improvements During Meal-Prep
The investigators propose a pilot trial of kitchen ventilation in the homes of children using a youth engaged research strategy.
- Trial name
- AIM (NCT04464720)
- Testing
- Cooking Ventilation Intervention
- Where
- United States
- Volunteers
- 19 people
- Sponsor
- University of California, Berkeley
Monoterpene Exposure During a Forest Bathing Intervention
Do Terpenes Play a Role in the Stress-reducing Effects of a Forest Bathing Intervention?
This pilot study evaluates the role terpenes play in the stress-reducing effects of a forest bathing intervention. Participants will participate in two interventions in random order: 1) terpene exposure and 2) no terpene exposure.
- Trial name
- NCT05316597
- Testing
- Forest bathing
- Where
- United States
- Volunteers
- 43 people, healthy volunteers welcome
- Sponsor
- University of Washington
Human Immunodeficiency Virus Exposure, Alcohol; Harmful Use
Game Plan for PrEP
This small pilot randomized controlled trial will test whether a brief, web-based intervention inspired by the principles of motivational interviewing helps high-risk men who take pre-exposure prophylaxis (PrEP) moderate their…
- Trial name
- NCT04973267
- Testing
- Game Plan for PrEP, Attention-Matched Control Lifestyle Habits Videos
- Where
- United States
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Brown University
HIV, Trauma Exposure
Improving the Health of South African Women With Traumatic Stress in HIV Care (C0147)
In this study, the investigators propose to develop Improving AIDS Care after Trauma (ImpACT), an intervention based on theories of stress and coping and evidence-based treatment for traumatic stress.
- Trial name
- ImpACT (NCT02223390)
- Testing
- Improving AIDS Care after Trauma (ImpACT)
- Where
- South Africa
- Volunteers
- 64 people
- Sponsor
- Duke University
Caries, Dental Pulp Exposure
Calcium Hydroxide, Mineral Trioxide Aggregate and Biodentine (Trademark) as Direct Pulp Capping of Permanent Teeth
Background: Dental caries is considered an oral health problem worldwide. In Chile the last national epidemiological study (2007) showed a national prevalence of dental caries in children 6 years (70.3%) and 12 (62.5%).
- Trial name
- NCT02492841
- Testing
- Mineral trioxide aggregate, Calcium hydroxide, Biodentine
- Where
- Chile
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- Universidad de los Andes, Chile
Breast Cancer, Pregnancy Related
Hair Care Product Use Among Women Of Color
The purpose of this study is to reduce use of personal care products that contain endocrine disrupting chemicals among women. For this pilot intervention, the investigators focus on the hair care product class of personal care…
- Conditions
- Breast Cancer, Pregnancy Related, Exposure During Pregnancy
- Trial name
- NCT04493892
- Testing
- Educational Intervention
- Where
- United States
- Volunteers
- 46 people
- Sponsor
- Columbia University
Endocrine Disrupting Chemicals, Environmental Exposure
Personalized Mobile Intervention to Reduce Exposure to Endocrine Disrupting Chemicals in Adults of Child-Bearing Age
The goal of this intervention study is to determine to what extent the Million Marker (MM) program reduces users' endocrine disruption chemical (EDC) exposure levels and changes their environmental health awareness and behaviors.
- Conditions
- Endocrine Disrupting Chemicals, Environmental Exposure, Health Literacy, Bisphenol A
- Trial name
- NCT05780047
- Testing
- Mail-in Urine Test for EDCs
- Where
- United States
- Volunteers
- 434 people, healthy volunteers welcome
- Sponsor
- Million Marker Wellness, Inc.
Acute Exercise, Heat Exposure
The Influence of Menthol Gel During Exercise With Heat
The purpose of this study is to examine the human thermoregulatory impact of applying a commercially available menthol gel (BioFreeze) to the skin prior to moderate intensity walking under heated conditions.
- Trial name
- NCT05302804
- Testing
- Menthol Gel, Control Gel
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Acute Exercise, Heat Exposure
The Influence of Capsaicin Gel During Exercise Within the Heat
The purpose of this study is to examine the human thermoregulatory impact of applying a commercially available capsaicin gel to the skin prior to moderate intensity walking under heated conditions.
- Trial name
- NCT05298202
- Testing
- Capsaicin, Control Gel, Exercise
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Ionizing Radiation Exposure, Quality Improvement
CT DOSE Collaboratory
This is a pragmatic stepped-wedge cluster randomized controlled trial to explore variation in doses used for diagnostic CT by pooling radiation dose data across diverse healthcare delivery systems.
- Trial name
- NCT03000751
- Testing
- Simple Audit Report, Multi-Component Intervention, In-Person Meeting
- Volunteers
- 864,080 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
Smoking Cessation, MindCotine Virtual Reality Mindful Exposure Therapy
Stanford Tobacco Treatment Services - Virtual Reality Treatment for Smoking Cessation
This study aims to see how feasible a mobile app based virtual reality program for smoking cessation (MindCotine) would be among Stanford cancer center patients
- Trial name
- NCT05220254
- Testing
- MindCotine's VR app
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Stanford University
Radiation Exposure
Repeatability in Hyperpolarized 3-Helium With MRI
The main purpose of this study is to assess and test the reproducibility and results of hyperpolarized 3-Helium gas as a contrast agent with Magnetic Resonance Imaging (MRI) of the lungs in healthy adult subjects.
- Trial name
- NCT03776747
- Testing
- Prone hyperpolarized 3 helium gas scan, Supine hyperpolarized 3 helium gas scan, Vitals
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Eric A. Hoffman
Exposure to Herbicides
Measurement of Agricultural and Dietary Glyphosate Exposure Among Pregnant Women
The purpose of this research is to understand whether and how pregnant women may be exposed to glyphosate, the active ingredient in a common herbicide.
- Trial name
- NCT04155463
- Testing
- Organic Diet, Conventional Diet
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Boise State University
Cardiac Catheterization, Radiation Exposure
Reduce Radiation Exposure in Fluoroscopic Interventions Evaluation
The purpose of this study is to determine whether the ControlRad system device when installed in Fluoroscopic (x-ray) machine reduces radiation dose to operators (Doctors and nurses) and to the patient who is undergoing cardiac…
- Trial name
- REDEFINE (NCT04404257)
- Testing
- ControlRad System, Without ControlRad System
- Where
- United States
- Volunteers
- 170 people
- Sponsor
- Corewell Health East
Occupational Exposure to Radiation
Radioprotective Light-weight Caps in the Interventional Cardiology Setting
The primary objective of the present trial is to compare the radiation attenuation provided by XPF caps (0.5mm lead-equivalent and 0.3mm lead-equivalent) to the standard protection (fabric cap, basically no protection) as…
- Trial name
- PROTECT (NCT01620658)
- Testing
- 0.5mm XPF cap, 0.3mm XPF cap, Standard cap
- Where
- United States
- Volunteers
- 197 people, healthy volunteers welcome
- Sponsor
- Baptist Health South Florida
HIV, Pre-exposure Prophylaxis
The Development of a Mobile-based App to Increase Uptake of Pre-Exposure Prophylaxis (PrEP) by Men Who Have Sex With Men in China
This study aims to use a mini-application on the popular Chinese social media mobile platform, WeChat, to improve HIV pre-exposure prophylaxis (PrEP) uptake among at-risk men who have sex with men (MSM).
- Trial name
- NCT04426656
- Testing
- Phone application
- Where
- China
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Occupational Exposure to Radiation
New Fabric Attenuation Device in Endovascular Interventional Radiology II (PREFER II)
The PREFER II trial primary objective of the trial is to show how much radiation attenuation is provided by XPF thyroid collars in absolute and relative terms.
- Trial name
- PREFER-II (NCT01611454)
- Testing
- XPF thyroid collar, Standard 0.5mm lead equivalent thyroid collar
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Baptist Health South Florida