Tokyo, Oct. 21 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000059479) titled 'A study on how caffeine affects concentration in relation to genetic factors' on Oct. 20.

Study Type: Interventional

Study Design: Basic Design - Cross-over Randomization - Randomized Blinding - Double blind -all involved are blinded Control - Placebo

Primary Sponsor: Institute - Waseda University

Condition: Condition - Not applicable Classification by malignancy - Others Genomic information - YES

Objective: Narrative objectives1 - The aim of this study is to clarify whether the effects of caffeine intake timing on cognitive function differ according to CYP1A2 genotype. Basic objectives2 - Efficacy

Intervention: Interventions/Control_1 - Following caffeine ingestion (6 mg/kg, administered in capsule form), the Psychomotor Vigilance Task (PVT) was initiated 25 minutes post-administration and consisted of seven repetitions of a 10-minute PVT followed by a 5-minute rest period. Interventions/Control_2 - Following placebo ingestion (encapsulated in an identical capsule in appearance), the Psychomotor Vigilance Task (PVT) was initiated 25 minutes post-administration and consisted of seven repetitions of a 10-minute PVT followed by a 5-minute rest period.

Eligibility: Age-lower limit - 18 years-old = Gender - Male Key inclusion criteria - Healthy males aged 18 to 39 years Key exclusion criteria - Individuals with a history of chronic diseases Individuals currently taking medication Individuals with unstable sleep patterns Target Size - 60

Recruitment Status: Recruitment status - Preinitiation Date of protocol fixation - 2025 Year 07 Month 29 Day Anticipated trial start date - 2025 Year 11 Month 01 Day Last follow-up date - 2027 Year 03 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068028

Disclaimer: Curated by HT Syndication.