治験バンク

Chiken Bank connects people in Japan with clinical trial (治験) opportunities, which the site describes as paid volunteer work (有償ボランティア). Membership registration is free, and the platform claims to have the largest number of trial listings. Compensation is based on the length of time commitment, not the level of risk. For example, a 5-night, 6-day inpatient trial in Yokohama offers 155,000 yen, while a longer 12-night trial in Tokyo pays 612,000 yen. A hypertension trial in Minato, Tokyo, offers up to 880,000 yen.

To find suitable trials, users can filter by age (0–99), gender (male, female, or both), location (including Kanto, Kansai, Kyushu, and many prefectures), and trial type (inpatient, outpatient, inpatient+outpatient, monitor, etc.). A toll-free telephone support line is available for questions. Compensation is paid in cash on-site or within one week after the trial ends.

The site lists eligibility restrictions: welfare recipients, minors (with exceptions), individuals without ID, foreign nationals (with exceptions), people with tattoos, and those currently undergoing dental treatment cannot participate. Participants may withdraw from a trial at any time without penalty.