Caffeine showdown: does your morning coffee beat the competition?
NCT ID NCT07357818
First seen Jun 27, 2026 · Last updated Aug 07, 2026 · Updated 2 times
Summary
This study looks at how different caffeinated drinks change how you feel and your body's responses. About 150 healthy adults who regularly drink caffeine will try their usual drink and a test drink. They'll rate their feelings and use a wearable device to track body signals.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- caffeine
- What this could lead to
- If successful, this could help understand how different caffeinated beverages affect feelings and body responses in healthy people.
- What could go wrong
- This is a small, early-stage study in healthy adults, so results may not apply to everyone. It measures subjective feelings, which can vary widely.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
-
126 people
The number who actually took part.
- Started
-
Nov 2025
- Finished
-
Mar 2026
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 55 years
- Sex
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Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Males or females, ≥18 to ≤55 years of age 2. BMI ≥18.5 and \<29.9 kg/m2 3. Generally good health 4. Participant currently and consistently has a caffeine routine 5. Participant is willing to substitute their current caffeine routine for the test beverage daily 6. Participant has never consumed the test beverage or similar products 7. Participant currently owns a wearable and is willing to use and connect the wearable device 8. Willing to use personal smart phone, tablet, or personal computer with stable internet connection 9. Willing and able to comply with all study procedures 10. Willing to adhere to all study procedures, including lifestyle considerations and sign forms providing informed consent to participate in the study Exclusion Criteria: 1. History or presence, on the basis of the health history, of clinically important condition or disease states 2. Is currently following, or planning to be on, a weight loss regimen 3. Weight loss or gain \>4.5 kg 4. History of gastrointestinal surgery for weight reducing purposes or gastrointestinal (GI) conditions 5. History of an eating disorder (e.g., anorexia nervosa or bulimia nervosa, binge eating) at the discretion of the Clinical Investigator. 6. History of unconventional sleep patterns (e.g., night shift) or diagnosed sleep disorder 7. Use of tobacco/nicotine products 8. Use of hemp/marijuana products 9. Unstable use of any prescription medication 10. Use of any medications(s) or dietary supplement(s), containing caffeine, or interacting with caffeine 11. Recent history of alcohol or substance abuse 12. Exposed to any non-registered drug product 13. Self-report of hypertension/high blood pressure without use of hypertensive medications 14. Any known allergy or intolerance to any ingredients contained in the study product 15. Any signs or symptoms of active infection of clinical relevance 16. History or presence of cancer, except for non-melanoma skin cancer 17. History of any major trauma or major surgical event 18. Female who is pregnant, planning to be pregnant during the study period, lactating 19. An employee, close relative of an employee, or participant who has a financial interest in Sponsor company or any other caffeine beverage company. 20. Any condition the Investigator believes would interfere with the participant's ability to provide informed consent or comply with the study protocol 21. A clinically significant medical condition that is affected by caffeine
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Alethios, Inc.
San Francisco, California, 94109, United States
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