Glaucoma Screening to Enhance At-Risk Californians' Health - Survey Response Incentives

Part of paid clinical trials in Oakland, California.

Sponsor
University of California, San Francisco
Study ID
NCT07755748
Status
Recruiting
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Conditions

  • Screening

Eligibility Criteria

Sex
ALL
Age
50 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • $5 gift card — OTHER
    A $5 gift card is offered as an incentive to participation in the 3-month survey call.
  • $100 monthly drawing — OTHER
    Entry into monthly drawing for $100 gift card is offered as an incentive to participation in the 3-month survey call.

Study Details

This is a randomized trial to assess whether offering a financial incentive will improve the response rate to a telephone survey. Three incentive approaches will be compared: a $5 gift card, entry into a monthly $100 drawing, or no incentive.

Key Dates

First listed
Aug 10, 2026
Start date
Feb 1, 2026
Status verified
Sep 2026
Primary completion
Jan 31, 2029
Completion
Sep 30, 2029

Study Design

Enrollment
2,000 participants (estimated)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING

Arms

  • Experimental: $5 gift card
  • Active Comparator: $100 monthly drawing
  • No Intervention: No incentive
    No incentive is offered for participation in the 3-month survey call.

Primary Outcome Measure

Survey completion [ Time Frame: One month after the outreach call is completed ]

Central Contacts

Locations (2)

FacilityCityStateZIPSite coordinators
Baywell HealthOaklandCalifornia94607
Angela Shahbazian, OD, FAAO
[email protected]
510-835-9610
University of California, San FranciscoSan FranciscoCalifornia94158-

Find similar trials in Oakland, CA

By research site
Baywell Health· Oakland, CAUniversity of California, San Francisco· San Francisco, CA

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