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A clinical study for evaluating the effect of L-citrulline on physical performance

A clinical study for evaluating the effect of L-citrulline on physical performance - A clinical study for evaluating the effect of L-citrulline on physical performance

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000014278
Enrollment
20
Registered
2014-06-16
Start date
2014-05-17
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

Effectiveness after 8 days of test food consumption compared to placebo control Effectiveness after 8 days of test food consumption compared to base line

Sponsors

Soiken Inc.
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1) Subject, aged from 20 to 39 years (bounds included) 2) Subject having sports with lower limbs more than 2 days a week 3) Subject classified as more than good grade of the PWC75%HRmax score on the physical work capacity on a cycle ergometer 4)Subject who can have a cycle ergometer exercise with more than 60 rpm for 12 minutes at the torque in case of 60 rpm of PWC75%HRmax 5) Subject having a briefing of the content of the present study, fully understanding and agreeing to its objective and being able to personally sign a written informed consent

Exclusion criteria

Exclusion criteria: 1) Subject taking any medical treatment(prescribed a medicine by a doctor) 2) Subject receiving a medical treatment for serious renal, hepatic, cardio-vascular, respiratory, endocrine or metabolic disorders or having a medical history of these disorders 3) Subject having a medical history of a chest pain or swoon career 4) Subject having a subjective symptom of low back pain, arthralgia or lumber hernia, disease of lower limbs, palpitations 5) Subject having an abnormality in the electrocardiogram 6) Subject having the possibilty of developing allergic symptoms by test food 7) Subject having blood sample of 200 ml or more taken (e.g., donated blood) within 1 month, or 400 ml or more within 3 months prior to the start of the present study 8) Subject having the habit of taking a supplement 9) Subject received a serious injury within past 1 year 10) Subject taking part in any sports events during the present study period or within 1 month before and after the period 11) Subject going abroad or having a trip for more than 3 days and 2 nights during the present study 12) Subject having a smoking habit 13) Subject having a seasonal allergy of a cedar or Japanese cypress pollen 14) Subject who took part in another clinical trial within 3 months prior to the start of the present study or who is currently taking part in another clinical trial 15) Subject judged to be ineligible by the investigator for other reason

Design outcomes

Primary

MeasureTime frame
4km cycling time trial performance

Secondary

MeasureTime frame
bloodchemisty(NOx), VO2 and visual analogue scale

Countries

Japan

Contacts

Public ContactTomohiro Sugino

Soiken Inc. R&D Division

sugino@soiken.com06-6871-8888

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026