Cancer Patients' supplement use under the microscope
NCT ID NCT07670234
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This observational study will survey 1,000 cancer patients about their use of dietary supplements like vitamins, minerals, and herbal products. Researchers want to know how common supplement use is, whether patients experience side effects, and if these supplements could interact with chemotherapy, immunotherapy, or other cancer drugs. The goal is to gather information, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2025
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- 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.
Who is studied
Adult patients diagnosed with cancer and receiving medical anticancer treatment (chemotherapy, hormone therapy, immunotherapy, or targeted therapy) at the study site. Participants will be assessed for dietary supplement use, tolerance, and potential interactions between dietary supplements and anticancer medications.
- 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: * Patients diagnosed with cancer and receiving medical anticancer treatment, including chemotherapy, hormone therapy, immunotherapy, and targeted therapies. * Current or recent use of one or more dietary supplements (e.g., vitamins, minerals, herbal products, or other nutritional supplements). * Adult patients : \>=18 Exclusion Criteria: * Patients unable to complete the study questionnaire because of cognitive impairment or a deteriorated health condition. * Failure or refusal to provide written informed consent.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Institut National d'Oncologie
RECRUITINGRabat, Morocco
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