Novel Metabolites of Beta-Carotene and Lycopene
Public ClinicalTrials.gov record NCT02550483. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The study (n = 36) will be a parallel design and will be 6 weeks in duration. Participants will start with a 2-week free-living wash-in period where they will be asked to avoid certain carotenoid-rich foods, followed by 4 weeks of a completely controlled diet. In addition to the controlled diet, participants will consume one of three beverages (300 mL/day; n = 12/group): placebo beverage (control), high beta-carotene tomato juice, and high-lycopene tomato juice. Blood, urine and feces will be collected throughout the study.
Study identification
- NCT ID
- NCT02550483
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 36 participants
Conditions and interventions
Conditions
Interventions
- Base diet + high beta-carotene tomato juice Other
- Base diet + high lycopene tomato juice Other
- Base diet + placebo beverage Other
Other
Eligibility (public fields only)
- Age range
- 21 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 31, 2015
- Primary completion
- Oct 31, 2015
- Completion
- Oct 31, 2015
- Last update posted
- Apr 25, 2018
2015
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| USDA Beltsville Human Nutrition Research Center | Beltsville | Maryland | 20705 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02550483, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 25, 2018 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02550483 live on ClinicalTrials.gov.