Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
CLA and Vitamin D on Protein Turnover
NCT03115775 · View on ClinicalTrials.gov ↗
Study Summary
To conduct a randomized, double-blind, controlled clinical trial to determine the independent and combined effects of dietary conjugated linoleic acid (CLA) and vitamin D supplementation on anabolic signaling, the expression of growth regulatory factors, and muscle protein turnover in older adults.
Conditions Studied
Interventions
- DIETARY_SUPPLEMENT Vitamin D
- DIETARY_SUPPLEMENT Conjugated linoleic acid
- DIETARY_SUPPLEMENT Conjugated linoleic acid and Vitamin D
- OTHER Corn oil (placebo)
Study Locations (1)
Missouri
- Washington University — St Louis
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 40 participants |
| Start Date | 2017-05-12 |
| Est. Completion | 2019-08-31 |
| Phase | NA |
Interested in This Trial?
Always speak with your doctor before enrolling in a clinical trial.
Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT03115775
The ClinicalTrials.gov registry entry for NCT03115775 describes a study currently listed as completed. 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 Washington University School of Medicine, which has 1,036 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.
The record links to 1 condition, with Protein appearing as the primary indexed condition, and to 4 interventions — of which Vitamin D 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: NCT03115775 reports 1 study location spanning 1 distinct geographic area — top geographies include Missouri. 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 NCT03115775 about?
NCT03115775 is a clinical study titled "CLA and Vitamin D on Protein Turnover". To conduct a randomized, double-blind, controlled clinical trial to determine the independent and combined effects of dietary conjugated linoleic acid (CLA) and vitamin D supplementation on anabolic signaling, the expression of growth regulatory factors, and muscle protein turnover in older adults.
What is the current status of trial NCT03115775?
This trial is currently completed. It is a NA study. The enrollment target is 40 participants. The study started on 2017-05-12. Estimated completion is 2019-08-31.
What conditions does trial NCT03115775 study?
This clinical trial studies the following conditions: Protein. These conditions were identified from the trial registry and reflect the primary focus areas of the research.
What interventions are being tested in trial NCT03115775?
The interventions under investigation include: Vitamin D (DIETARY_SUPPLEMENT), Conjugated linoleic acid (DIETARY_SUPPLEMENT), Conjugated linoleic acid and Vitamin D (DIETARY_SUPPLEMENT), Corn oil (placebo) (OTHER). Each intervention is being evaluated for safety and efficacy as part of this clinical study.
Who is sponsoring clinical trial NCT03115775?
This trial is sponsored by Washington University School of Medicine, which has 1,036 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.
Where is trial NCT03115775 being conducted?
This trial has 1 study location across Missouri. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How Clinical Trials Work
Understand phases 1-4, trial design, randomization, and the informed consent process.
Patient Rights in Clinical Trials
Your rights as a participant: consent, withdrawal, privacy, and who to contact.
Finding the Right Clinical Trial
A practical guide to searching trials, understanding eligibility, and evaluating options.
All Guides
Browse our complete library of clinical trial educational resources.
Read our methodology — how this data is sourced, computed, and verified.