Friendship Pays

You can earn $200 for each new friend you refer that completes a study at Worldwide Clinical Trials

Referral valid for first time participants only upon completion of his/her first study at Worldwide Clinical Trials. Make sure your FRIENDS give YOUR NAME as the referral when they are scheduling their first screening.

Refer any friend new or old to this study and receive $200!


This study consists of 4 in house stays.

Up to $5500


Postmenopausal Females
40 to 65
BMI 18 to 30


Period 1 Check in: Friday Feb 15th
Period 1 Check out: Sunday Feb 17th

Period 2 Check in: Friday Mar 1st
Period 2 Check out: Sunday Mar 3rd

Period 3 Check in: Friday Mar 15th
Period 3 Check out: Sunday Mar 17th

Period 4 Check in: Friday Mar 29th
Period 4 Check out: Sunday Mar 31st


San Antonio Clinic

Most studies will qualify but some restrictions may apply. Eligibility for a Refer A Friend payment and payment amount will be determined by Worldwide. Worldwide at its discretion may change, amend, modify or terminate this referral program at any time without notice.