Encouraging Older Adults and Adults With Serious Illness to Designate a Health Care Proxy

Enrolling by invitation · Not applicable

Conditions studied: Designating a Healthcare Proxy

In brief

This study is a Stage III randomized trial to encourage patients in advance of a health care appointment to designate a healthcare proxy. Patients will be randomly assigned to receive a mailer containing information about designating a healthcare proxy, or to not receive any mailer. For patients assigned to receive a mailer, the mailer will differ by the presence or absence of a patient pre-commitment prompt, and contain a personalized provider request or a generic health system request. The work will evaluate the randomized trial and identify factors that predict intervention effectiveness.

Key facts

Study ID

NCT07290478

Run by

University of Southern California

People needed

20000

Starts

2026-06-01

Expected to finish

2027-09-13

Last updated by the study team

2026-08-03

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• No EHR-documented healthcare proxy at enrollment
• Age ≥ 55 years OR age ≥ 18 years and listed in the health system's cancer, CHF, or CKD registries

You may not qualify if…

• Primary care provider not assigned at time of randomization.

Where it is running

• Contra Costa Regional Medical Center — Martinez, California, United States

Full record on ClinicalTrials.gov

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