Clinical trial · Interventional
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
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
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.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colon Adenocarcinoma | Colon Adenocarcinoma | ONTOLOGY_EXACT | 0.98 |
| Colorectal Carcinoma | Colorectal Carcinoma | ONTOLOGY_EXACT | 0.98 |
| Rectal Adenocarcinoma | Rectal Adenocarcinoma | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (3)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Dietary intervention via Text Messaging | Behavioral | — | UNRESOLVED |
| Nutrition Education | Behavioral | — | UNRESOLVED |
| Survey Administration | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Text message intervention
- description
- Adaptive 12-week text message intervention using reinforcement learning to increase whole grain and reduce refined grain intake via the HealthySMS platform. Participants will also complete semi-structured follow-up interviews and various questionnaires evaluating participants dietary habits and use of study intervention.
- interventionNames
- Behavioral: Dietary intervention via Text Messaging
- Other: Survey Administration
- Behavioral: Nutrition Education
Primary outcomes (5)
- measure
- Median Percentage of Text Messages That Participants Responded to That Asked for a Reply
- timeFrame
- Up to 12 weeks
- description
- The percentage of text messages responded to is defined as the number of text messages with a response divided by the total number of text messages that ask for a reply and calculated on a per patient basis. The intervention will be determined feasible if the median response rate (percentage of text messages that participants responded to) across all participants is \>= 70%.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: 1. Age \> 18 years. 2. Subject has provided informed consent. 3. Diagnosis of colon or rectal adenocarcinoma. 4. 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. 5. At least 6 weeks since a major surgery and fully recovered. 6. Owns a mobile phone and is willing and able to receive and send text messages. 7. Able to speak/read English or Spanish. 8. Based on a screening survey, eat grains and =\<50% of total grains are whole grains. Exclusion Criteria: 1\. Does not meet any of the above inclusion criteria.
References
Publications (0)
Data not yet available