There are about 173942 clinical studies being (or have been) conducted in United States. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The main goal of this study is to compare the Haemophilus influenzae type b antibody response in American Indian / Alaska Native (AI/AN) infants to two licensed vaccines: Vaxelis and PedvaxHIB.
This was a randomized, open-label, repeat dose study of once daily relugolix alone or relugolix combined with hormonal add-back therapy (combination estradiol/norethindrone acetate) (E2/NETA) to assess safety, including markers of bone resorption, pharmacokinetics (PK), and pharmacodynamics (PD) endpoints.
This prospective pilot study will assess the feasibility of rh PSMA 7.3 positron emission tomography/magnetic resonance imaging (PET/MRI) scans in detecting prostate cancer that may have come back (recurrent) in patients with increasing levels of prostate-specific antigen (PSA) following prostate surgery (biochemically recurrent). An increase in PSA levels alone does not tell the doctor where the cancer may be or how much cancer there may be. Imaging tests, like a bone scan, MRI, and/or computed tomography, are often performed to help the doctor learn where or how much cancer there is, and how best to treat the cancer. rhPSMA-7.3 is a radioactive tracer agent that when used with PET/MRI imaging may help diagnose and look for the spread of prostate cancer. Prostate-specific membrane antigen (PSMA) is a protein that is expressed in prostate cancer and this agent targets the PSMA molecule. Giving rh PSMA 7.3 during PET/MRI may help doctors better find where the cancer may be spreading and how much of it there is. The results of this trial may also guide in radiotherapy planning.
An open-label, dose-ranging influenza challenge study in healthy adult volunteers to determine the optimal infection dose and safety of a recombinant H3N2 (A/Texas/ A/Texas/71/2017 (H3N2, clade 3C3a) influenza strain. The goal of this study is to find a challenge virus dose that is safe and can achieve a symptomatic influenza Attack Rate (AR) that will be sufficiently high for utilization in future vaccine or intervention studies. The optimal dose of the three considered is broadly defined as the minimum challenge virus dose that elicits the highest AR without meeting safety-stopping criteria. Additionally, viral recovery, clinical symptoms, and immune responses over the post-challenge period will be described by challenge dose group. This study will last for up to 1 year depending upon the number of challenge cohorts enrolled given the adaptive dose-escalation design. The populations are healthy males and non-pregnant, non-breastfeeding females aged = 18 and < 46 years of age with a serum HAI antibody titer of </=1:40 against influenza A/Texas/71/2017 (H3N2), clade 3C3a. The study will enroll and challenge up to 106 (plus 8 shams) healthy adult volunteers with the H3N2 (A/Texas/71/2017 (H3N2), clade 3C3a) influenza virus challenge strain. The primary objectives are: 1) To determine the optimal infectious dose of a recombinant influenza virus (A/Texas/71/2017 (H3N2), clade 3C3a) to be used as a clinical challenge strain in future vaccine efficacy or intervention studies as assessed by viral shedding and clinical symptoms. 2) To describe viral detection by quantitative and qualitative Reverse Transcription - Polymerase Chain Reaction (RT-PCR) from study subjects at baseline and post-challenge. 3) To document clinical symptoms from self-reported surveys and standardized symptom scales at baseline and post-challenge.
Approximately 24 million older adults have prediabetes. Obesity, age related decreases in lean mass and increases in fat mass, and sedentary lifestyle have been associated with functional and cognitive decline in older adults. Innovative lifestyle strategies to treat obesity and pre-diabetes are critically needed. The proposed research will demonstrate that time restricted eating combined with resistance training is an effective non-pharmacological therapy to help obese prediabetic individuals reduce body fat, maintain lean mass, prevent progression of prediabetes to diabetes, and improve cognition.
The proposed study evaluates the effects of a hands free crutch (iWalkFree, Inc.) on walking balance and stability compared to standard crutches. It is expected that the hands free crutch will provide better stability during walking on a level surface and better reported balance confidence compared to standard crutches. In this study, walking stability will be assessed using motion capture data from an infrared camera system with 12 mounted cameras surrounding a level walkway. Balance will be assessed through a self-reported activity-specific balance confidence (ABC) questionnaire. An improved understanding of the effects of the hands free crutch on gait may benefit the future prescription of ambulatory assistive devices. The proposed study may provide insight that can be used by physical therapists and other providers to select the ambulatory assistive device that best meets their patients' needs.
This is a Phase 1, randomized, double-blind, placebo-controlled, active-controlled, comparator controlled, multi-dose, parallel-group study divided into three treatment periods and a follow-up period with five treatment groups. This study will be conducted at 1 clinical research unit (CRU) in the United States (US). Period 1 will consist of daily escalating doses of tyramine administered until tyramine pressor response (defined as the tyramine dose required to increase systolic blood pressure by at least 30 mm Hg from the daily defined baseline in 3 consecutive measurements within 4 hours after tyramine dosing) is achieved or Day 7. Participants who achieve tyramine pressor response at tyramine doses >/= 200mg and </= 700mg are eligible for continuation into Period 2 and will be randomized accordingly. Depending on the group to which a participant is randomized, participants will receive rasagiline, phenelzine, ozanimod (therapeutic dose), ozanimod (supra-therapeutic dose), or placebo in Period 2. The duration of dosing depends on the group to which a participant is randomized. In Period 3, all participants will undergo a sham tyramine challenge and receive a single dose of tyramine placebo. Participants who do not achieve tyramine pressor response following the sham challenge will continue with the tyramine challenge (ie, tyramine pressor tests) for up to 12 additional days. Participants who receive at least one dose of study drug in Period 2 will participate in a follow-up phase during which 2 follow-up telephone calls will be performed, the last of which will occur approximately 80 to 100 days after the last dose of study drug.
This 2-arm clustered, randomized community trial will test a multilevel, COVID-19 testing and linkage to care (eg, health insurance, medical appointments, community resources, contact tracing) intervention against a nontailored, attention-control condition on uptake of COVID-19 testing with adult African American church-affiliated members at 6 months. Contact tracing approval (beliefs and participation contact tracing) and COVID19 prevention behaviors will also be examined. Findings from this study could provide a theory-based, multilevel model for delivering scalable, wide-reaching COVID-19 testing and linkage to care services, including contact tracing, by supporting African American faith leaders with culturally-appropriate, easy-to-use tools and health agency partnerships.
This study aims to assess the efficacy of a custom fitted device designed to isolate enteroatmospheric fistulas effluent independent of negative pressure wound therapy and to evaluate the effects on the device related to dressing changes, time required for dressing changes, management costs, and the ease of use.
The purpose of this study is to evaluate the effect of probiotic administration on TPN dependence in infants < 32 weeks GA and BW 1500 grams or less in the Banner - University Medical Center Phoenix and Banner Children's at Desert Neonatal Intensive Care Units (NICU). The primary endpoint of capturing the number of days of TPN administration can reflect that an infant is progressing towards readiness for the initiation or advancement of enteral feedings at an earlier interval. The relationship between probiotic administration and the incidence of NEC, culture positive sepsis, and mortality is of interest to us and will be captured. Finally, the assessment of the tolerance of probiotic administration and the potential positive impact on growth and development in these premature infants may validate our current practices.