Evaluation of Letters Promoting Colorectal Cancer Testing
Public ClinicalTrials.gov record NCT04548765. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Evaluation of Letters Enhanced With Behavioral Nudges to Promote Colorectal Cancer Testing Through Fecal Immunochemical Tests or Colonoscopies
Study identification
- NCT ID
- NCT04548765
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Geisinger Clinic
- Other
- Enrollment
- 14,644 participants
Conditions and interventions
Conditions
Interventions
- Letter Behavioral
- Loss Frame and Fear Appeals Behavioral
- Transparency Behavioral
- Default Effect and Presentation of Alternatives Behavioral
- Enhanced Fear Appeals and Decoy Effect Behavioral
Behavioral
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 23, 2020
- Primary completion
- Jan 23, 2021
- Completion
- Jul 22, 2021
- Last update posted
- Sep 23, 2021
2020 – 2021
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Geisinger | Danville | Pennsylvania | 17822 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04548765, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 23, 2021 · Synced Jul 20, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04548765 live on ClinicalTrials.gov.