Clinical trials: Exposure
Healthy
Investigation of Ritonavir Effects on Afatinib Exposure in Healthy Subjects
To study the effect of the P-glycoprotein inhibitor ritonavir on the pharmacokinetics (PK) of afatinib depending on the timepoint of ritonavir administration
- Trial name
- NCT01426958
- Testing
- afatinib, ritonavir + afatinib
- Where
- Germany
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Boehringer Ingelheim
COVID-19
Healthcare Worker Exposure Response and Outcomes of Hydroxychloroquine
This is a double blind, placebo controlled study in approximately 2,000 health care workers at risk for being exposed to COVID-19.
- Trial name
- HERO-HCQ (NCT04334148)
- Testing
- Hydroxychloroquine
- Where
- 34 sites in United States
- Volunteers
- 1,360 people, healthy volunteers welcome
- Sponsor
- Adrian Hernandez
COVID-19, SARS-CoV 2
Hydroxychloroquine as Post-Exposure Prophylaxis Against COVID-19 Infection
This is a prospective, double-blind, randomized, placebo-controlled study in two distinct cohorts to evaluate the efficacy and safety of hydroxychloroquine in the prevention of COVID-19 infection.
- Trial name
- NCT04372017
- Testing
- Hydroxychloroquine, Vitamin D
- Where
- United States
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Sanford Health
Q Fever
Safety Evaluation of a Q-fever Vaccine, NDBR 105
The purpose of this study is to evaluate the safety of Q Fever vaccine, NDBR 105, and collect data on incidence of occupational Q Fever infection in at risk personnel.
- Trial name
- NCT00584454
- Testing
- Q Fever Vaccine (NDBR 105
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- U.S. Army Medical Research and Development Command
Public Speaking, Social Fear
Exposure With Acceptance-Based Versus Habituation-Based Rationale for Public Speaking Anxiety
The purpose of this study is to compare two exposure-based behavioral group treatments for public speaking anxiety. Specifically, exposure within the context of psychological acceptance will be compared to exposure within a…
- Trial name
- NCT00842946
- Testing
- Exposure w/ Acceptance-Based Rationale, Exposure w/ Habituation-Based Rationale
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Drexel University
Non-visual Photoreception
Investigating the Effects of Evening Light Exposure on Melatonin Suppression, Alertness and Nocturnal Sleep
The timing and quality of sleep is governed by environmental and physiologic factors. Environmental factors, especially ambient lighting can impact the circadian system and alter the timing and structure of sleep.
- Trial name
- NCT01586039
- Testing
- Visible light
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Tobacco-Related Carcinoma
Hookah Additive Research to Inform Product Standards
This clinical trial evaluates how the content of waterpipe (WP) tobacco affects the appeal, puffing behavior, and toxicity of WP tobacco smoking.
- Trial name
- HARPS (NCT05453773)
- Testing
- Questionnaire Administration, Tobacco Smoking
- Where
- United States
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Ohio State University Comprehensive Cancer Center
Crohn's Disease, Ulcerative Colitis
Assessing the Drug Exposure Risk of Infants Breastfed by Women With Inflammatory Bowel Disease
Breastfeeding is beneficial to both mother and baby. However, many breastfeeding women are affected by long-term health conditions and need to take medications.
- Conditions
- Crohn's Disease, Ulcerative Colitis, Healthy Controls
- Trial name
- NCT03397108
- Testing
- The IBD group was divided into 2 subgroups: with or without anti-TNF antibody use
- Where
- 2 sites in Canada
- Volunteers
- 79 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Smoking Cessation
Impact of E-cigarette Nicotine Concentration on Compensation
The study will be the first to assess the impact of nicotine concentration on compensatory puffing (total inhaled volume), nicotine delivery, and switch patterns (percent exclusive EC, dual cig-EC, and cig only users) with an…
- Trial name
- NCT05887947
- Testing
- Electronic Cigarette with 5% Nicotine Concentration, Electronic Cigarette with 1.8% Nicotine Concentration
- Where
- United States
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Type 2 Diabetes Mellitus, Bone Remodeling
Changes in Bone Turnover With Exposure to a GLP-1 Receptor Agonist
The purpose of this study is to determine changes in bone turnover markers and calcitonin following the initiation of exenatide compared to placebo in postmenopausal women wtih type 2 diabetes.
- Trial name
- CMBD (NCT01381926)
- Testing
- exenatide, Saline
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
HIV Infections, HIV/AIDS
Doxycycline PEP for Prevention of Sexually Transmitted Infections Among Kenyan Women Using HIV PrEP
This is a randomized clinical trial of doxycycline post-exposure prophylaxis (dPEP) to reduce bacterial STIs among Kenyan women taking pre-exposure prophylaxis (PrEP).
- Conditions
- HIV Infections, HIV/AIDS, Neisseria Gonorrheae Infection, Chlamydia Trachomatis Infection
- Trial name
- dPEP-KE (NCT04050540)
- Testing
- Doxycycline
- Where
- Kenya
- Volunteers
- 449 people, healthy volunteers welcome
- Sponsor
- University of Washington
Healthy Volunteers
A Study to Evaluate Nicotine Uptake and Biomarkers in Smokers Using mybluTM Electronic Cigarettes
This study evaluates the overall performance of the currently-marketed MybluTM e-cigarette device and pods, as assessed by nicotine uptake, exposure to smoke constituents, safety and consumer satisfaction, over 8 days.
- Trial name
- NCT04430634
- Testing
- Myblu variant A, Myblu variant B, Myblu variant C
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Fontem US LLC
HIV Infection
An Open Label Demonstration Project and Phase II Safety Study of Pre-Exposure Prophylaxis Use Among 15 to 17 Year Old Young Men Who Have Sex With Men (YMSM)
Approximately 100 HIV-uninfected YMSM at high risk of acquiring HIV infection, between the ages of 15 and 17 inclusive will be enrolled across all participating Adolescent Medicine Trial Units (AMTUs).
- Trial name
- NCT01769456
- Testing
- PCC, Emtricitabine/tenofovir (FTC/TDF (Truvada®))
- Where
- 6 sites in United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Hearing Loss, Noise-Induced
Noise-Induced Hearing Loss-Acute Exposure Treatment
The purpose of this study is to assess the safety and efficacy of zonisamide for the treatment of noise-induced hearing loss in adults.
- Trial name
- PINIHL-AET (NCT04768569)
- Testing
- Zonisamide 100Mg Cap
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Generalized Anxiety Disorder
The Effects of Emotional Exposure on State Anxiety
A randomized repeated-measures crossover clinical trial was performed. Forty healthy, female college students completed a 30 min session of YogaFit and a time-matched seated rest condition on separate days.
- Trial name
- NCT03458702
- Testing
- YogaFit, Quiet Rest
- Where
- United States
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Texas Tech University
HIV Infections
Bangkok Tenofovir Study, an HIV Pre-exposure Prophylaxis Trial, Bangkok, Thailand
The primary goals of this study are to assess the safety and efficacy of daily tenofovir to prevent parenteral HIV infection among injection drug users (IDUs).
- Trial name
- NCT00119106
- Testing
- Tenofovir disoproxil
- Where
- Thailand
- Volunteers
- 2,413 people, healthy volunteers welcome
- Sponsor
- Centers for Disease Control and Prevention
HIV Infections
The ADAPT Study: Use of Emtricitabine and Tenofovir Disoproxil Fumarate for Pre-Exposure Prophylaxis (PrEP)
Pre-exposure prophylaxis (PrEP) is a method of preventing HIV infection through the use of antiretroviral (ARV) medications before exposure to HIV.
- Trial name
- ADAPT (NCT01327651)
- Testing
- Daily dosing, Time-driven dosing, Event-driven dosing
- Where
- 3 sites in United States, South Africa and 1 more
- Volunteers
- 622 people, healthy volunteers welcome
- Sponsor
- HIV Prevention Trials Network
Sexually Transmitted Diseases
Combo-PEP: Multipurpose Prevention of Post-Exposure Prophylaxis Regimens
The study will determine tissue pharmacology of a single dose of doxycycline for sexually transmitted infection (STI) Post-exposure Prophylaxis (PEP).
- Trial name
- NCT04860505
- Testing
- Doxycycline, Biktarvy
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Emory University
Efficacy of the New CPRV
Immune Response in Adults to PrEP and Simulated Booster PEP With a New CPRV
Pre exposure rabies vaccination with a new Chromatographically Purified Vero-cell Rabies Vaccine(SPEEDA) is as effective as Purified Vero-cell Rabies vaccine.
- Trial name
- NCT01603875
- Testing
- New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).
- Where
- Thailand
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Queen Saovabha Memorial Institute
Tetraplegia, Hypothermia
Effect of Heat Exposure on Cognition in Persons With Tetraplegia
The ability to maintain normal body temperature (Tcore) is impaired in persons with tetraplegia: subnormal Tcore and vulnerability to hypothermia (<95 F) have been documented in this population after exposure to even mild…
- Conditions
- Tetraplegia, Hypothermia, Mild Cognitive Impairment
- Trial name
- NCT02488824
- Testing
- Warm Temperature
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development