CLINICAL TRIALS PROFILE FOR THEANINE
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Clinical Trials for Theanine
| Trial ID | Title | Status | Sponsor | Phase | Summary |
|---|---|---|---|---|---|
| NCT00291070 ↗ | Effects of L-Theanine in Boys With ADHD | Completed | University of British Columbia | Phase 2 | This study will examine the effects of L-theanine (an amino acid found in green tea) on the behavior, cognitive performance and sleep quality of boys with ADHD. |
| NCT04056650 ↗ | Assessing the Effectiveness of an N-of-1 Platform Using Study of Cognitive Enhancers | Terminated | Icahn School of Medicine at Mount Sinai | Phase 4 | The growing consumer-grade molecular and digital wellness market is generating unprecedented volumes of information to support decision-making around individual health. Current trends suggest the demand for personalized health information, tools, and services will continue to rise in the next decade. What is missing is a reliable, individualized way to turn this data into action. Dialogue around consumer health often ignores the disconnect between measurements and goals. For example, monitoring one's weight is not the same as losing weight, and counting steps is not the same as lowering blood pressure. If individuals are to benefit from data, they must be able to relate changes in their personal data to targeted changes in actions and outcomes. There is a great need and opportunity to adapt the tools and capabilities of modern computer science, statistics, and clinical trial design to the needs of individual patients and consumers. The team at the Institute for Next Generation Healthcare (INGH) has created a smartphone-based app ("N1 app") and study platform that together allow individuals to design, implement, and analyze methodologically sound, statistically robust studies of their personal health data. The focus of the platform will be the creation of single-participant randomized crossover studies, known as n-of-1 trials. The platform employs informatics-based intelligence that automates study design and analysis while simultaneously maintaining high standards of statistical rigor and reproducibility. These novel methods and tools are designed to empower individuals to make rational, data-driven choices about their own health, maximizing the benefit all will receive from new and existing sources of personal health data. |
| NCT04749745 ↗ | Effects of L-theanine on Motor Cortex Excitability in Healthy Subjects: A Paired-Pulse TMS Study | Completed | Butler Hospital | Early Phase 1 | Major depressive disorder (MDD) is a serious mental illness and the leading cause of disability worldwide. New pharmacotherapeutic agents with complementary neurobiological mechanism and better side effect profile are of great needs. In addition to the monoamine system, the glutamatergic system plays a crucial role in MDD. L-theanine (N5-ethyl-L-glutamine) is the primary psychoactive component uniquely in green tea. Preclinical studies have demonstrated anti-depressant effect of L-theanine in rodents and provided evidences for its pharmacological properties of N-methyl-D-aspartate (NMDA) and gamma-aminobutyric acid (GABA) agonism. Yet these effects have not been proven in humans. Only one open-label clinical trial has studied and supported antidepressant effects of L-theanine in MDD patients. We propose using pair-pulse transcranial magnetic stimulation (ppTMS) to probe how L-theanine may manipulate the glutamatergic and GABA systems in the frontal region by changing cortical excitability first in healthy subjects. We plan to investigate the neurobiological effects of L-theanine in healthy subjects first. Granted that the first phase pilot trial provides neurophysiological evidence of L-theanine on motor cortex excitability in human subjects, next phases of studies on L-theanine in MDD patients cortical excitability could be justified. |
| >Trial ID | >Title | >Status | >Sponsor | >Phase | >Summary |
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