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Earn Rewards by sharing the experience

At Linear, we appreciate our community’s support and invite you to refer friends to our clinical studies. Earn $250 for each successful referral when your friend qualifies, applies with your referral, and completes a study. They’ll be well cared for, with plenty of downtime to relax or connect with others.
Share the referral with friends
To qualify, you must be 18 years or older, and the referred participant cannot have any existing record in Linear’s database, including previous applications or study participation. Receive your $250 payment once your referred friend has dosed in the study and we verify your information.
Participation
Your referral can then apply for any study using the same email address you provided for them in the referral form. Please note that completing a study is a requirement. Simply attending pre-screening or screening visits, or being a backup or alternate does not qualify for payment.
Get rewarded
Outside of trial requirements like general health monitoring, how you spend you time is up to you. Hang out with other contributors or pop some chill beats on your headphones while you delve into a book.
Share the referral with friends
To qualify, you must be 18 years or older, and the referred participant cannot have any existing record in Linear’s database, including previous applications or study participation. Receive your $250 payment once your referred friend has dosed in the study and we verify your information.
Participation
Your referral can then apply for any study using the same email address you provided for them in the referral form. Please note that completing a study is a requirement. Simply attending pre-screening or screening visits, or being a backup or alternate does not qualify for payment.
Get rewarded
Outside of trial requirements like general health monitoring, how you spend you time is up to you. Hang out with other contributors or pop some chill beats on your headphones while you delve into a book.

Terms and Conditions

If the eligibility steps below are met, you will receive $250 deposited directly into your bank account as soon as your referral doses on the study! You do NOT have to be a current/past participant or applicant to refer someone.

To participate in the program, referrers must fill out the Refer a Friend Form prior to the new participant applying for a study. This requirement ensures that individuals cannot claim referrals retroactively after participating in a study and then inquire about their friend’s payment.

Referred friends must sign up for a study using the same email address you provided for them during the referral. The email address used for study enrolment must match the one provided by the referrer to validate the referral and qualify for the program.

Please Note

Participation in this study is entirely voluntary. Referrals have the right to refuse participation at any point, and coercion to participate for the sole purpose of a friend or referrer receiving a payment will disqualify them from the study.

Referrals are unlimited, but you only get paid per unique participant. For example, you can refer Alex to a study and receive $250 for his participation. You won’t get an additional referral bonus if Alex participates in further studies. However, you can refer others and receive a referral bonus for each new participant who completes the study.

It can take up to 2 – 4 weeks for the payment to be processed.