NCT05746195Completed
Optimization of Adaptive Text Messages for Cancer Survivors (OATS II)
Use of Text Messages to Increase Whole Grain Consumption in Colorectal Cancer
Source: ClinicalTrials.gov · Last updated 22 Jan 2026
Brief summary (registry, in English)
This clinical trial evaluates whether an adaptive text-message intervention is useful in helping survivors of colorectal cancers (CRC) eat more whole grain foods and less refined grain foods. Most CRC survivors don't achieve the recommended intakes of whole grains or fiber, even though there is strong evidence that a high-fiber diet rich in whole grains lowers the risk of death from CRC. Dietary interventions are a promising approach for reducing death from CRC, and text message interventions specifically are a promising tool for reaching diverse populations. This trial evaluates a text-message based dietary intervention that continuously adapts message content to be specifically tailored for the participant for increasing whole grain consumption.
- Status (registry)
- Completed
- Study type
- Interventional
- Enrollment
- 46 (actual)
- First submitted
- 17 Feb 2023
- Start date
- 3 Nov 2023
- Primary completion date
- 30 Nov 2024
- Lead sponsor
- University of California, San Francisco
- Diseases
- Colorectal cancer
- NCT number
- NCT05746195
What you commit to
- Study type: Interventional
- Participants enrolled: 46
- From 3 Nov 2023 to the primary completion date, 30 Nov 2024
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other
- 1\. Does not meet any of the above inclusion criteria.
Who the study is looking for
- Age \> 18 years.
- Subject has provided informed consent.
- Diagnosis of colon or rectal adenocarcinoma.
- Not on active treatment at the time of screening and not expected to receive active anticancer therapy (e.g., surgery, radiation, chemotherapy) during the study period.
- At least 6 weeks since a major surgery and fully recovered.
- Owns a mobile phone and is willing and able to receive and send text messages.
- Able to speak/read English or Spanish.
- Based on a screening survey, eat grains and =\<50% of total grains are whole grains.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| University of California San Francisco Coordinator of this site? Confirm its status | San Francisco | United States | Unknown status |
| Zuckerberg San Francisco General Coordinator of this site? Confirm its status | San Francisco | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.