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The Food Environment, Microbial Cysteine Metabolism, and Cancer Disparities
NCT07086833 · View on ClinicalTrials.gov ↗
Study Summary
The goal of this clinical trial is to learn if changing cysteine levels in the diet can influence how the body processes cysteine in Black and White individuals aged 45-75 with a history of non-cancerous polyps. The main questions it aims to answer are: * At the beginning of the study, do Black participants have higher levels of cortisol (a stress hormone) and compounds made from cysteine in their blood when compared to White participants? * Does eating less cysteine lower the body's natural cysteine activity and lead to less gut bacteria that break down cysteine? * Does eating less cysteine lead to less inflammation in the gut and lower levels of markers of inflammation in the blood? Research will compare a high cysteine diet and a low cysteine diet, and each participant will eat both diets. Participants will be in the study for 11 weeks and 2 days. Over the course of the study, participants will: * Eat a high cysteine diet for 3 weeks, and a low cysteine diet for 3 weeks * Eat a moderate cysteine diet for 1 week before each study diet * Complete surveys * Provide blood, stool, and saliva samples * Maintain food logs
Conditions Studied
Interventions
- OTHER Low Cysteine Diet
- OTHER High Cysteine Diet
Study Locations (2)
Indiana
- University Hospital Clinical Research Center — Indianapolis
- Purdue Clinical Research Center — West Lafayette
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 40 participants |
| Start Date | 2025-07-30 |
| Est. Completion | 2027-08-01 |
| Phase | NA |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT07086833
The ClinicalTrials.gov registry entry for NCT07086833 describes a study currently listed as recruiting. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 40 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is Purdue University, which has 100 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 6 conditions, with Colorectal Cancer appearing as the primary indexed condition, and to 2 interventions — of which Low Cysteine Diet is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.
Geographic footprint matters for practical reasons: NCT07086833 reports 2 study locations spanning 1 distinct geographic area — top geographies include Indiana. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.
Frequently Asked Questions
What is clinical trial NCT07086833 about?
NCT07086833 is a clinical study titled "The Food Environment, Microbial Cysteine Metabolism, and Cancer Disparities". The goal of this clinical trial is to learn if changing cysteine levels in the diet can influence how the body processes cysteine in Black and White individuals aged 45-75 with a history of non-cancerous polyps. The main questions it aims to answer are: * At the beginning of the study, do Black par...
What is the current status of trial NCT07086833?
This trial is currently recruiting. It is a NA study. The enrollment target is 40 participants. The study started on 2025-07-30. Estimated completion is 2027-08-01.
What conditions does trial NCT07086833 study?
This clinical trial studies the following conditions: Colorectal Cancer, Diet Modification, Cancer Prevention, Dietary Intervention, Colorectal Cancer Prevention. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT07086833?
The interventions under investigation include: Low Cysteine Diet (OTHER), High Cysteine Diet (OTHER). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT07086833?
This trial is sponsored by Purdue University, which has 100 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT07086833 being conducted?
This trial has 2 study locations across Indiana. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
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