Who is sponsoring NCT06621797?

NCT06621797 is sponsored by Hacettepe University.

What drugs are being tested in NCT06621797?

Interventions in NCT06621797: Intervention 1: Dietary Supplement - Caffeine Supplement, Intervention 2: Dietary Supplement - Caffeine + L-Theanine Supplement, Intervention 3: Dietary Supplement - Caffeine Supplement + Diaphragmatic Breathing Exercises.

What condition does NCT06621797 study?

NCT06621797 studies Esports, Caffeine, L-theanine.

Is NCT06621797 still recruiting?

NCT06621797 is currently completed. Last updated 1 October 2024.

Last reviewed 2024-10-01 · How we verify

NCT06621797: CLD Esports St

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Effects of Caffeine, L-Theanine, and Diaphragmatic Breathing on Esports Players' Performance

Completed NA Last updated 1 October 2024

What this trial tests

NA trial testing Intervention 1: Dietary Supplement - Caffeine Supplement in Esports in 15 participants. Completed in 26 September 2024.

Timeline

1 May 2023

Primary endpoint
24 September 2024

26 September 2024

Quick facts

Lead sponsor	Hacettepe University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	single
Primary purpose	basic science
Enrollment	15
Start date	1 May 2023
Primary completion	24 September 2024
Estimated completion	26 September 2024
Sites	1 location across Turkey (Türkiye)

Drugs / interventions tested

Intervention 1: Dietary Supplement - Caffeine Supplement
Intervention 2: Dietary Supplement - Caffeine + L-Theanine Supplement
Intervention 3: Dietary Supplement - Caffeine Supplement + Diaphragmatic Breathing Exercises

Conditions studied

Esports — all drugs for Esports →
Caffeine — all drugs for Caffeine →
L-theanine — all drugs for L-theanine →

Sponsor

Hacettepe University

Who can join

Adults 18 to 30, male only, with Esports or Caffeine. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The purpose of this study is to investigate whether caffeine, L-theanine (a natural amino acid found in tea), and diaphragmatic breathing exercises can help improve the game performance of esports players. Esports players often need fast reaction times, high accuracy, and mental focus during competitive gaming. This study will look at how caffeine and L-theanine supplements, either separately or together, and breathing exercises impact key performance factors like reaction time and accuracy during gameplay. The goal is to determine if these strategies can help esports players perform better by reducing stress, improving concentration, and speeding up reaction times. The findings could help inform safe, effective methods to enhance cognitive and physical performance in gaming.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

Synergistic effects of caffeine, l-theanine, and diaphragmatic breathing on esports performance: A randomized controlled crossover trial.
Arslan S, Akçay B, Türkmen OB, Mutlu EK. · · 2026 · PMID 42176572 · DOI 10.1016/j.nutres.2026.04.007

Verify or expand the search:

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Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT06621797 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 9 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Hacettepe University
Last refreshed: 1 October 2024

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06621797.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing