Glaucoma screening follow-up survey incentives

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized sub-study nested within the GSEARCH trial, examining whether different incentives affect the completion rate of a follow-up telephone survey. Eligible participants are those enrolled in GSEARCH who have valid contact information and consented to follow-up. Participants are randomized to receive either a $5 gift card, an entry into a $100 monthly drawing, or no incentive at the time of the follow-up survey. The primary outcome is survey completion at the designated follow-up time points, with the broader trial evaluating telemedicine glaucoma screening versus education or delayed intervention. The study is conducted at Baywell Health and UCSF, with collaboration from the CDC.

Why it matters

Who can join: the full rules

Inclusion Criteria:

\- Participating in GSEARCH trial

Exclusion Criteria:

\- Patients without a valid phone number

Where it's running

• Baywell Health
  Oakland, California, United States Recruiting
• University of California, San Francisco
  San Francisco, California, United States Active not recruiting

Study contacts

• Principal investigator: Jeremy D Keenan, MD MPH — University of California, San Francisco
• Study coordinator: Dionna Wittberg, MPH
• Email: dionna.wittberg@ucsf.edu
• Phone: 13306083016

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.