Clinical trials: Exposure
Vaping Behaviors, Message Exposure
A Text Messaging Trial to Test Vaping Health Messages Optimized to Young Adults' Vaping Status
The goal of this study is to examine if e-cigarette education messages delivered using a source and presentation tailored to one's vaping status influences young adults' vaping behaviors.
- Conditions
- Vaping Behaviors, Message Exposure, Young Adults
- Trial name
- NCT07038317
- Testing
- Intervention, Control
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- University of Hawaii
Pre-Exposure Prophylaxis of HIV Infection
Pre-Exposure Prophylaxis Study of Lenacapavir in Cisgender Men, Transgender Women, Transgender Men, and Gender Nonbinary People at Risk for HIV Infection
The goal of this study is to evaluate the efficacy of the study drugs, lenacapavir (LEN) in preventing HIV infection, in participants ≥ 16 years of age who have condomless receptive anal sex with partners assigned male at birth…
- Trial name
- PURPOSE 2 (NCT04925752)
- Testing
- Oral Lenacapavir (LEN), F/TDF, Sub-cutaneous (SC) Lenacapavir (LEN)
- Where
- 93 sites in United States, Argentina and 6 more
- Volunteers
- 3,292 people, healthy volunteers welcome
- Sponsor
- Gilead Sciences
General Anesthesia, Hemodynamics
Effect of Operating Room Noise on BIS and Hemodynamics Under General Anesthesia
This prospective observational study aims to evaluate the impact of operating room noise on bispectral index (BIS) and hemodynamic parameters in patients undergoing general anesthesia.
- Conditions
- General Anesthesia, Hemodynamics, Noise Exposure
- Trial name
- NCT07194707
- Testing
- Intraoperative Noise Monitoring
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Başakşehir Çam & Sakura City Hospital
Prevention of Pneumonic Plague Resulting From Aerosol Exposure to Yersinia Pestis
Immunogenicity, Safety, and Tolerability of rF1V-1018 Vaccine in Adults 18 to 55 Years of Age
This study will evaluate the immunogenicity, safety, and tolerability of rF1V-1018 vaccine
- Trial name
- NCT07207408
- Testing
- rF1V-1018
- Where
- 4 sites in United States
- Volunteers
- 148 people, healthy volunteers welcome
- Sponsor
- Dynavax Technologies Corporation
Body Temperature Changes, Heat Stress
Consecutive Occupational Heat Exposure With and Without Overnight Cooling
Extreme heat events are becoming more frequent, intense, and prolonged, increasing the risk of heat-related illness among workers exposed to hot environments.
- Conditions
- Body Temperature Changes, Heat Stress, Heat Exposure, Heat Fatigue
- Trial name
- NCT07656519
- Testing
- Simulated occupational heat exposure with recovery at recommended indoor temperature limit, Simulated occupational heat exposure with recovery in an overheated indoor environment
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Ottawa
HIV, Pre-exposure Prophylaxis
Case Management Dyad
The overall goal of this study is to test whether dyadic and focused case management coupled with contingency management will (1) improve financial wellbeing, (2) improve access to food, (3) increase linkage and retention rates…
- Conditions
- HIV, Pre-exposure Prophylaxis, Case Management, Contingency Management
- Trial name
- CM2 (NCT06162897)
- Testing
- Dyadic Case Management
- Where
- United States
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- University of Chicago
Female Infertility, Environmental Exposure
Detection of Microplastics in Human Granulosa Cells and in the Follicular Fluid of Women Undergoing ICSI Treatment
Plastic products have been used ubiquitously in the modern world for many decades - for example as packaging materials, textile fibers or molded parts.
- Trial name
- MP2021 (NCT05179993)
- Testing
- Microplastics
- Where
- Germany
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Infertility Treatment Center Dortmund
Heat Exposure, Blood Volume
Heat Acclimation in Females
Heat acclimation is when you repeatedly exposure yourself to heat so that your body adapts and better tolerates heat. This project will determine if completing a heat acclimation maintenance period after heat acclimation is more…
- Conditions
- Heat Exposure, Blood Volume, Cardiac Output
- Trial name
- NCT06551168
- Testing
- Heat exposure, Control group
- Where
- Canada
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Trinity Western University
Cold Exposure
Cold Water Exposure's Effects on Physical and Mental Health
An interest in cold-water immersion (CWI) to elicit diverse physiological effects has been prevalent for centuries. CWI typically consists of bodily exposure to water at temperatures ranging from 5-10º C for various durations.
- Trial name
- NCT06667193
- Testing
- Cold Water Immersion (CWI) - Cold Tub Immersion (CI), Cold Water Immersion (CWI) - Cold Shower (CS)
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Northern Colorado
Lead Exposure, High Blood Lead Level
Lead Exposure Intervention Program
The goal of this clinical trial is to learn if BLL (blood lead level) screening and "healthy home" lead prevention program created in the US is adaptable to a Sub-Saharan African context.
- Trial name
- LEIP (NCT07401251)
- Testing
- Home visit with tailored messages, In-clinic lead risk reduction intervention
- Where
- Kenya
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- University of Washington
Body Temperature Changes, Heat Stress
Progressive Heat Exposure and Physiological Strain
Occupational heat-stress guidelines are commonly based on the level of environmental heat exposure and are largely derived from studies conducted under constant environmental conditions.
- Conditions
- Body Temperature Changes, Heat Stress, Heat Exposure, Heat Fatigue
- Trial name
- NCT07847437
- Testing
- Constant Heat Exposure, Progressively Increasing Heat Exposure
- Where
- Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Ottawa
Arsenic Poisoning, Environmental Exposure
Table-Top Water Pitcher to Reduce Arsenic Exposure Among Well Users in New Hampshire
The goals of this clinical trial are to: 1. gather preliminary data on the effectiveness of a table-top water pitcher filtration system in reducing arsenic exposure among individuals using private wells with elevated (>5 μg/L)…
- Conditions
- Arsenic Poisoning, Environmental Exposure, Water-Related Diseases
- Trial name
- NCT07103356
- Testing
- Water Pitcher Filtration System
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Trustees of Dartmouth College
HIV Pre-exposure Prophylaxis Use
PrEP4U: Assessing the Effectiveness of Integrated Same-Day Lenacapavir Initiation and Follow-up Choice on PrEP Persistence
PrEP4U is designed as a pragmatic, randomized implementation trial to test strategies that could directly inform real-world roll-out of lenacapavir.
- Trial name
- NCT07335289
- Testing
- Choice of follow up, Follow up via standard clinic
- Where
- 2 sites in United States
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Sleep Deprivation, Cold Exposure
Modafinil to Optimize the Performance of Cold-Stressed Sleep-Deprived Personnel
Environmental and workplace stressors are common and often unavoidable in military operations. Two critical stressors are cold stress and sleep loss. They both can substantially degrade operational effectiveness.
- Trial name
- NCT07830056
- Testing
- Modafinil (M), 200 mg Microcrystalline Cellulose
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Surgical Smoke Exposure
Preoperative Smoke Check and Surgical Smoke Evacuation Compliance
This single-center, prospective before-after (quasi-experimental) study evaluates whether a brief preoperative "Smoke Check" practice improves compliance with surgical smoke evacuation during smoke-generating surgical procedures.
- Trial name
- NCT07830524
- Testing
- Preoperative Smoke Check
- Where
- Turkey (Türkiye)
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Volkan Gokmen
Heathly Subjects, Primary Health Care
Assessing the Effectiveness of Heat Adaptation Digital Messages From Primary Care Providers to Their Patients on the Change in Behaviour for Heatwave-related Preparedness
Extreme heat events pose a significant health threat in Canada, as demonstrated by the 2021 heat wave that claimed over 600 lives in Western Canada. Most heat-related deaths occur indoors and are preventable.
- Conditions
- Heathly Subjects, Primary Health Care, Climate Change, Public Health
- Trial name
- HeatSmart (NCT07024628)
- Testing
- Heat adaptation digital messaging, Non-heat-related digital messaging
- Where
- Canada
- Volunteers
- 20,000 people, healthy volunteers welcome
- Sponsor
- Hopital Montfort
Human Immunodeficiency Virus (HIV), HIV Pre-Exposure Prophylaxis
A Clinical Study of MK-8527 to Prevent Human Immunodeficiency Virus Type 1 (HIV-1) (MK-8527-011)
Researchers are looking for new medicines to prevent HIV-1 (Human Immunodeficiency Virus Type 1) infection. The goals of this study are to learn: If taking MK-8527 once a month works to prevent HIV-1 infection as well as or…
- Trial name
- NCT07044297
- Testing
- MK-8527, FTC/TDF
- Where
- 81 sites in United States, Argentina and 14 more
- Volunteers
- 4,390 people, healthy volunteers welcome
- Sponsor
- Merck Sharp & Dohme LLC
Mental Health, Child Wellbeing
Generation Victoria Cohort 2020s: A Statewide Longitudinal Cohort Study of Victorian Children and Their Parents
Generation Victoria (GenV) is a longitudinal, population-based study of Victorian children and their parents that will bring together data on a wide range of conditions ,exposures and outcomes.
- Conditions
- Mental Health, Child Wellbeing, Infant Health, Child Health
- Trial name
- GenV (NCT05394363)
- Where
- Australia
- Volunteers
- 150,000 people, healthy volunteers welcome
- Sponsor
- Murdoch Childrens Research Institute
Obesity, Metabolic Disease
Thermogenic Silencer Regulatory Factors in Humans
A promising approach to correct the metabolic dysfunction associated with obesity is to activate brown fat non-shivering thermogenesis (NST).
- Conditions
- Obesity, Metabolic Disease, Cold Exposure
- Trial name
- NCT06424132
- Testing
- Cold Vest Exposure Period, Rewarming Exposure Period, Fasting
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Rockefeller University
Pollution Related Respiratory Disorder, Pollution; Exposure
Lung and Heart Function Across Decades of Life in Health
The main objective of this study is to develop baseline "normal" reference values of both lung and heart function for healthy adults within the age range relevant to the United States Veteran population who served in the…
- Conditions
- Pollution Related Respiratory Disorder, Pollution; Exposure, Dyspnea, Cardiopulmonary
- Trial name
- NCT07641413
- Testing
- Healthy control
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco