Clinical Research Directory
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4 clinical studies listed.
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Tundra lists 4 No Disease or Condition is Being Studied clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT07408466
Optimizing Operational Parameters for Diagnostic Vitrectomy
Single-center ex-vivo study using blood samples from healthy donors processed through a 25-gauge vitrectomy system. The study compares four combinations of operational parameters (vacuum pressure and cut rate) to evaluate their impact on cellular recovery and morphological preservation. Pre- and post-procedure complete blood counts and cytology smears will be analyzed to identify the settings that minimize cell loss and mechanical damage, with the ultimate goal of optimizing diagnostic yield in vitreoretinal lymphoma (VRL) vitrectomy.
Gender: All
Ages: 18 Years - 65 Years
Updated: 2026-02-17
NCT07239791
Role of the Noradrenergic System in the Regulation of Learning Dynamics: Evaluation of the Effect of a Low-dose Selective Noradrenaline Reuptake Inhibitor (NOISYXETINE)
Administration of low-dose selective noradrenaline reuptake inhibitor (sNRI) (e.g. atomoxetine) to healthy subjects is a validated model of increasing cortical noradrenaline levels which, combined with computational modelling of behaviour, allows fine-grained analysis of the impact on learning processes of noradrenaline's fluctuations in the human cortex. The study goal is to characterize the modifications of certain cognitive processes and associated brain circuits under low-dose sNRI using validated computational learning models. The study will be interested in how subjects will modify their learning under the effect of the drug across two separate investigations; one utilizing in a stable evidence accumulation task and one utilising a changing evidence accumulation task. This approach will help to better understand the link between noradrenaline and accumulation of evidence in healthy subjects, and indirectly in some neuropsychiatric pathologies. The study is a single centre, double-blinded, randomized, placebo-controlled, cross-over study involving evaluable healthy adults separated in 2 cohorts: A for participants having the stable task and B for those having the changing one. Participants will then be randomized in a 1:1 ratio to one of the following treatment sequences: * Atomoxetine 40 mg - Placebo (Subgroups A1 or B1); * Placebo - Atomoxetine 40 mg (Subgroups A2 or B2).
Gender: All
Ages: 18 Years - 39 Years
Updated: 2025-11-20
NCT06781580
Ergonomic Protocol for Competitive E-Sport Athletes
The goal of this clinical trial is to learn if this ergonomic protocol can improve performance and reduce ergonomic risk in esports athletes. It will also learn about the insight of esports athletes and their experience in implementing this new protocol. The main questions it aims to answer are: Does this ergonomic protocol improve performance? Does this ergonomic protocol reduce ergonomic risk? Researchers will assign the protocol to esports athletes who meet inclusion criteria and express interest in participating in the study. A pre-post design will be conducted to note any differences. Participants will: * Participate in a 6-week study with 4 in-person visits * Volunteers will be requested to participate in a focus group during Week 6. * Implement the strengthening protocol 3x a week and a warm up/cool down protocol before and after each gaming session. * Attend one educational session about gaming ergonomics during Week 1 * Complete the Rapid Entire Body Assessment, Kovaaks Asessment, and a Questionnaire during Week Zero, Week 3, and Week 6.
Gender: All
Ages: 18 Years - Any
Updated: 2025-02-27
1 state
NCT06638996
Acute Psychological and Physiological Effects of Cannabigerol
The purpose of this study is to examine the acute effects of cannabigerol (CBG) on various psychological (e.g., anxiety, stress, mood, memory, impairment, intoxication, side effects) and physiological (blood pressure, cortisol, heart rate variability, electrodermal activity, pain tolerance, temperature) outcomes. Further, potential side effects of CBG (sleepiness/fatigue, dry mouth/eyes, increased appetite, and dizziness nausea) will be assessed. As such, the study is focused on better understanding some of the potentially beneficial and detrimental effects of CBG on humans.
Gender: All
Ages: 21 Years - Any
Updated: 2024-12-24
1 state