Oral Testofen, L-citrulline, Resveratrol, and Caffeine supplementation study for sexual function: randomized, double blind, placebo-controlled crossover pilot study.

Oral Testofen, L-citrulline, Resveratrol, and Caffeine supplementation study for sexual function: randomized, double blind, placebo-controlled crossover pilot study. - Testofen, L-citrulline, Resveratrol, and Caffeine supplementation study for sexual function.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000028816

Enrollment

Registered

2017-08-25

Start date

2017-10-17

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

Sexual Dysfunction

Interventions

Oral Testofen, L-citrulline and Resveratrol 2-week supplementation Oral placebo 2-week

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Score less than or equal to 25 of International Index of Erectile Function erectile function domain, despite use of PDE5i. Score less than or equal to 3 of items Ejaculatory frequency, Desire frequency, or Desire level.

Exclusion criteria

Exclusion criteria: Chickpea allergy Contraindication for PDE5i Without nerve sparing, radical prostatectomy

Design outcomes

Primary

Measure	Time frame
International Index of Erectile Function	—

Secondary

Measure	Time frame
Salivary testosterone	—

Countries

Japan

Contacts

Public ContactMasato Shirai

Juntendo University Urayasu Hospital Department of Urology

masatos@juntendo-urayasu.jp+81-47-353-3111

Outcome results

None listed

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