A pilot clinical trial on the efficacy of two L-carnitine-based dietary supplements on muscle mass and function in healthy elderly

A pilot clinical trial on the efficacy of two L-carnitine-based dietary supplements on muscle mass and function in healthy elderly - Effect of two L-carnitine-based dietary supplements on muscle mass and function in elderly

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000022637

Enrollment

Registered

2016-06-11

Start date

2016-06-11

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

Healthy volunteers

Interventions

Intake of placebo dietary supplement (1 packet/day) for 8 weeks Intake of L-carnitine-based dietary supplement Carnipure 1 (1 packet/day) for 8 weeks Intake of L-carnitine-based dietary supplement Car

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy male and female adults, aged 55 to 75 years 2. BMI of 21 kg/m2 to 33 kg/m2 3. Subjects in good physical condition such that they can perform exercise testing safely, 4. Subjects who are sedentary and not currently engaging in any regular exercise. 5. Subjects who agree to maintain their current level of activity throughout the trial period. 6. Subjects who have given voluntary, written, informed consent to participate in the study.

Exclusion criteria

Exclusion criteria: 1. Subjects who are smokers but smokes more than one box a day. 2. Subjects who have experienced weight loss or gain of greater than 4.5 kg (approximately 10 lbs.) in the past 3 months 3. Subjects diagnosed with active heart disease 4. Subjects with uncontrolled hypertension (=> 160 mmHg) 5. Subjects with history of seizure 6. Present or history of neurological disorders or significant psychiatric illness 7. Subjects with gout 8. Subject with significant heart, liver, kidney, blood or respiratory disease 9. Subjects with Type I or Type II diabetes 10. Subjects with unstable thyroid disease 11. Use of another investigational product within 3 month of the screening visit 12. Subjects with an allergy or sensitivity to the investigational dietary supplement ingredient. 13. Subjects who use illicit drugs or have a history of alcohol or drug abuse within the past 6 months 14. Subjects who currently consume greater than 2 standard alcoholic drinks per day.

Design outcomes

Primary

Measure	Time frame
DXA	—

Secondary

Measure	Time frame
Muscle functional and physical/mental status	—

Countries

Japan

Contacts

Public ContactYoshio Suzuki

Juntendo University Graduate School of Health and Sports Science

yssuzuki@juntendo.ac.jp+81-476-98-1001

Outcome results

None listed

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