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Chewing gum vs. pills: which caffeine boost works best for athletes?

NCT ID NCT07497685

Knowledge-focused Sponsor: University of Gaziantep Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 21, 2026 · Updated 2 times

Summary

This study looked at how caffeine in different forms—capsules, chewing gum, and mouth rinse—affects exercise performance in healthy male recreational athletes. Fourteen participants completed tests of aerobic and anaerobic performance under each condition. The goal was to see which delivery method provides the best boost for physical activity.

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

14 people

The number who actually took part.

Started

Apr 2026

Finished

Jun 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 25 years

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Healthy male recreational athletes aged 18-25 years. * At least 2 years of regular training history (3-4 sessions per week). * Non-smoker.No diagnosed chronic disease. * No current musculoskeletal injury. * Willingness to abstain from caffeine consumption for 48 hours before each test session. * Willingness to avoid strenuous exercise for 48 hours before each test session. Exclusion Criteria: * Known allergy or sensitivity to caffeine. * Use of any performance-enhancing supplements during the study period. * Failure to comply with the standardized nutritional requirements before testing. * Failure to comply with the standardized sleep requirements before testing. * Inability to complete all experimental conditions (Capsule, Gum, Rinse, and Placebo).

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Exercise performance Physical performance

Contacts and locations

Locations

  • Gaziantep University, Faculty of Sport Science (Athletic Performance Laboratory)

    Şehitkamil, Gaziantep, 27310, Turkey (Türkiye)

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