Clinical Research Directory
Browse clinical research sites, groups, and studies.
7 clinical studies listed.
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Tundra lists 7 Basic Science clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT06411860
A Study to Assess the Effect of Olpasiran on QT/QTc Intervals in Healthy Participants
The primary objective of the study is: • To assess the effects of a single therapeutic and supratherapeutic dose of olpasiran on the placebo-corrected change from baseline in QT corrected for heart rate (ΔΔQT)/QTc interval in healthy participants.
Gender: All
Ages: 18 Years - 60 Years
Updated: 2026-10-23
NCT07827027
Evaluation of the Bioequivalence of RAY1225 Injection in Healthy Participants
This is a single-center, randomized, open, parallel-designed bioequivalence study aimed at evaluating the pharmacokinetic differences of RAY1225 injection after site and batch changes compared to before the changes.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-09-18
NCT05374460
Factors Affecting Sensory and Motor Learning
How participants perceive the position of their own hand in various contexts will be examined. This will include changing the visual display to suggest the hand is in a slightly different position, and asking participants to indicate where they think it is by pointing with their other hand.
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-08-31
1 state
NCT05953038
LSD Occupancy of the Serotonin 2A Receptor in the Human Brain
The investigators wish to quantify the relation between administered dose of lysergic acid diethylamide (LSD), plasma LSD levels, and occupancy at the serotonin 2A receptor (5-HT2AR) using \[11C\]CIMBI-36 positron emission tomography.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-02
NCT05079516
Neural Basis of Sensory Learning: Brain Regions
The purpose of this study is to understand how the sensory and motor areas of the brain work together to keep a person's hand movements accurate (sensorimotor learning). The investigators hope this information may be useful one day to improve rehabilitation techniques in patients with brain lesions.
Gender: All
Ages: 18 Years - 45 Years
Updated: 2026-05-04
1 state
NCT07460284
A Mass Balance Study Of 14C-RAY1225 Injection In Healthy Chinese Participants
This is an open-label, single-center, single-dose study.
Gender: All
Ages: 18 Years - 55 Years
Updated: 2026-03-10
1 state
NCT03289949
The Neurobiological Effect of 5-HT2AR Modulation
The investigators wish to investigate neurobiological effects of serotonin 2A receptor modulation in healthy volunteers, contrasting effects of an agonist (psilocybin) and an antagonist (ketanserin). Magnetic resonance imaging (MRI) and positron emission tomography (PET) will be used as neuroimaging tools.
Gender: All
Ages: 18 Years - Any
Updated: 2024-12-16