Synthetic and Natural Caffeine on Hemodynamic Parameters in Young, Healthy Volunteers
Public ClinicalTrials.gov record NCT03495063. 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.
Official title
Comparison of Synthetic and Natural Caffeine on Hemodynamic Parameters in Young, Healthy Volunteers: A Randomized, Double Blind, Crossover Study
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study determine the difference in hemodynamic effects of synthetic and natural caffeine consumption in healthy individuals through blood pressure (central and peripheral) assessment. Participants will randomly be assigned to consume either one 8oz cup of coffee containing 400mg of caffeine (increased caffeine using concentrated coffee) or one 8oz cup of coffee-flavored drink with approximately 400mg synthetic caffeine from capsules dissolved in it.
Study identification
- NCT ID
- NCT03495063
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- Not listed
Conditions and interventions
Conditions
Interventions
- Natural Caffeine Dietary Supplement
- Synthetic Caffeine Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 18 Years to 40 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
- Sep 15, 2019
- Primary completion
- Oct 31, 2020
- Completion
- Nov 30, 2020
- Last update posted
- Apr 1, 2020
2019 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| David Grant Medical Center | Travis Air Force Base | California | 94535 | — |
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 NCT03495063, 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 1, 2020 · Synced Sep 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03495063 live on ClinicalTrials.gov.