Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT02550483 · ClinicalTrials.gov registry record · NA
Novel Metabolites of Beta-Carotene and Lycopene
A NA study, sponsored by USDA Beltsville Human Nutrition Research Center.
- Completed
- Registry status
- NA
- Development phase
- 36
- Enrollment target
NCT02550483: Completed NA study, sponsored by USDA Beltsville Human Nutrition Research Center.
NCT02550483 is a NA study that has completed, run by USDA Beltsville Human Nutrition Research Center. The registered enrollment target is 36 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02550483, a NA study, has completed, sponsored by USDA Beltsville Human Nutrition Research Center.
- COMPLETED
- Registry status
- NA
- Development phase
- 36 participants
- Enrollment target
Study Summary
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.
Primary Outcome
Apocarotenoid concentrations will be measured in blood (baseline, after washout; 2 wks; 4 wks).
Interventions
- OTHER Base diet + high beta-carotene tomato juice
- OTHER Base diet + high lycopene tomato juice
- OTHER Base diet + placebo beverage
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 36 participants |
| Start Date | 2015-09 |
| Est. Completion | 2015-11 |
| Phase | NA |
What the finished NCT02550483 record still lists
NCT02550483 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 36 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (97% lower).
The record links to 0 conditions, and to 3 interventions - of which Base diet + high beta-carotene tomato juice is the first listed.
NCT02550483 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02550483 about?
NCT02550483 is a clinical study titled "Novel Metabolites of Beta-Carotene and Lycopene". 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, par...
What is the current status of trial NCT02550483?
This trial is currently completed. It is a NA study. The enrollment target is 36 participants. The study started on 2015-09. Estimated completion is 2015-11.
What interventions are being tested in trial NCT02550483?
The interventions under investigation include: Base diet + high beta-carotene tomato juice (OTHER), Base diet + high lycopene tomato juice (OTHER), Base diet + placebo beverage (OTHER).
Who is sponsoring clinical trial NCT02550483?
This trial is sponsored by USDA Beltsville Human Nutrition Research Center, which has 29 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02550483's enrollment target sits among peer trials
36 1541st of 2000 higher than 437 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT00929006 · 36 participants · Early Phase 1
Acute Progesterone Suppression of Wake vs. Sleep Luteinizing Hormone Pulse Frequency in Pubertal Girls With and Without Hyperandrogenism
- NCT01891318 · 36 participants · Phase 1
Neoadjuvant Radiosurgery for Resectable Brain Metastases: Phase I/II Study
- NCT02291848 · 36 participants · Phase 1
Tumor-Associated Antigen-Specific Cytotoxic T-Lymphocytes for Multiple Myeloma
- NCT02366819 · 36 participants · Phase 4
Genetic Analysis-Guided Irinotecan Hydrochloride Dosing of mFOLFIRINOX in Treating Patients With Locally Advanced Gastroesophageal or Stomach Cancer
Similar registry start date
- NCT05988463 · started 2027-01-01 · Phase 1
Dose-Escalation Study of Artesunate Patients With IPF
- NCT07219706 · started 2026-12-10 · NA
Dietary Fiber and Time Restricted Eating
- NCT02831335 · started 2026-12-01
Technical Development of Multi-Parametric Renocerebral MRI
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia