Healthy subjects
Conditions
Interventions
Learning English (2 weeks) - Intake the test beverage once a day before and during English study (2 weeks)
Learning English (2 weeks) - Learning English (2 weeks)
Sponsors
HUMA R&D CORP
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.Japanese males and females aged between 20 and 35 years old at the time of obtaining written consent. 2.Subjects who have high motivation to learn English and are willing to learn English using an application "Study Sapuri" 3.Subjects who can study at least 4 days per week (about 30 minutes per day) during the study period. 4.Subjects who do not reject the flavor of the test beverage. 5.Subjects who are fully explained the purpose and details of the study, have ability to consent, are volunteering to participate in the study with a full understanding of the explanation, and have consented to participate in the study in writing.
Exclusion criteria
Exclusion criteria: 1.Subjects receiving medication or outpatient treatment for a serious disease. 2.Subjects with current or previous history of drug dependence or alcohol dependence. 3.Subjects who are currently seeing a doctor for the treatment of a psychiatric disorder (e.g., depression) and/or sleep disorder (e.g., insomnia, sleep apnea syndrome) or have previous history of a psychiatric disorder. 4.Subjects whose eating, sleeping, and other habits are extremely irregular. 5.Subjects who have an irregular lifestyle due to night shift work, etc. 6.Heavy users of alcohol (the mean consumption of pure alcohol is 60 g/day or more) or excessive smokers (21 cigarettes/day or more). 7.Subjects with current or previous history of a brain disease, malignancy, immunological disease, diabetes mellitus, hepatic disease (hepatitis), renal disease, cardiac disease, thyroid disease, adrenal disease, metabolic disease, or other serious diseases. 8.Subjects who participated in another clinical study/research within 1 months before the date of informed consent or who plan to participate in another clinical study/research during the study period. 9.Females who are currently pregnant or breastfeeding, or may become pregnant or start breastfeeding during the study period. 10.Subjects who are scheduled to learn English other than the intervention for this study during the study period and cannot cancel the schedule. 11.Subjects who have experience in learning English using "Study Sapuri". 12.Subjects who have difficulty complying with recording of each survey form. 13.Subjects whose various test results at screening indicate their ineligibility to participate in the study. 14.Other Subjects who are considered ineligible for participation in the study by the investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of Learning Activities | — |
Secondary
| Measure | Time frame |
|---|---|
| (Secondary outcomes) Psychological questionnaire, Questionnaire on English Learning (Safety evaluation) Adverse events | — |
Countries
Japan
Contacts
Public ContactHiroyuki Miyazawa
HUMA R&D CORP Clinical Development Department
Outcome results
None listed