# Effects of L-theanine on Motor Cortex Excitability in Healthy Subjects: A Paired-Pulse TMS Study

> **NCT04749745** · EARLY_PHASE1 · COMPLETED · sponsor: **Butler Hospital** · enrollment: 11 (actual)

## Conditions studied

- Cortical Excitability
- Psychiatric Disorder

## Interventions

- **DRUG:** L-theanine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04749745
- **Lead sponsor:** Butler Hospital
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-06-09
- **Primary completion:** 2021-05-31
- **Final completion:** 2021-05-31
- **Target enrollment:** 11 (ACTUAL)
- **Last updated:** 2021-09-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04749745

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04749745, "Effects of L-theanine on Motor Cortex Excitability in Healthy Subjects: A Paired-Pulse TMS Study". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04749745. Licensed CC0.

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