Aspirin and diet may fight cancer return
NCT ID NCT05036109
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether taking daily aspirin and vitamin D, along with exercise and a low-fat diet, could help prevent colorectal cancer from returning in 16 patients who had no visible cancer but still had signs of cancer DNA in their blood. The goal was to see if these lifestyle changes could clear those DNA markers. While the approach is promising, it is not a cure and focuses on managing the risk of recurrence.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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16 people
The number who actually took part.
- Started
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Oct 2021
- Finished
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Feb 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age ≥ 18 years at the time of study entry * ECOG 0-1 * Histologically documented high-risk stage II, stage III, or stage IV colorectal adenocarcinoma with no evidence of disease following definitive local therapy (including surgical resection or ablation) * No radiographic evidence of disease by contrast enhanced CT chest/abdomen/pelvis * Presence of detectable ctDNA mutation that matches mutations found in tumor tissue * Completion of all standard of care adjuvant therapy * Platelet count \>50,000 * Ability to give informed consent * Ability to complete all questionnaires involved in study Exclusion Criteria: * Concurrent malignancy under active treatment * Known active gastrointestinal bleeding or peptic ulcer disease * Known hypersensitivity to vitamin D or aspirin * CrCl\<30 mL/min within 30 days of starting the intervention * Current usage of therapeutic anticoagulation (warfarin, Eliquis, Xarelto) * Inability to safely participate in physical activity in the opinion of the treating oncologist * Pregnant or nursing women. N.B.: urine pregnancy test will be administered as part of the screening process. * Persistent hypercalcemia or conditions predisposing to hypercalcemia (i.e., hyperparathyroidism) * Known symptomatic genitourinary stones
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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M D Anderson Cancer Center
Houston, Texas, 77030, United States
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