NCT07412951

Brief Summary

The aim of the study being to investigate the effects of caffeinated chewing gum on shot put performance

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
3mo left

Started Jan 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress50%
Jan 2026Jul 2026

Study Start

First participant enrolled

January 1, 2026

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

January 6, 2026

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 17, 2026

Completed
3 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 20, 2026

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2026

Expected
Last Updated

February 17, 2026

Status Verified

February 1, 2026

Enrollment Period

2 months

First QC Date

January 6, 2026

Last Update Submit

February 9, 2026

Conditions

Performance Enhancing Product Use

Keywords

power

Outcome Measures

Primary Outcomes (1)

  • shot put distance

    Measurement of Shot Put Distance (meter)

    15 minutes after intervention

Study Arms (2)

caffeine gum

EXPERIMENTAL

Chewing caffeine gum for 10 minutes

Dietary Supplement: caffeine

placebo gum

PLACEBO COMPARATOR

Chewing placebo gum for 10 minutes

Dietary Supplement: caffeine

Interventions

caffeineDIETARY_SUPPLEMENT

The participants chewing either caffeine Gum (CAF trial, containing 3 mg/kg of caffeine) or Placebo Gum (PL) for 10 minutes.

caffeine gumplacebo gum

Eligibility Criteria

Age20 Years - 40 Years
Sexmale(Gender-based eligibility)
Gender Eligibility DetailsOnly male subjects
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • activity athlete
  • No cardiovascular and joint diseases

You may not qualify if:

  • Non-active athlete
  • Caffeine-sensitive individuals

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University of Sport

Taichung, Taiwan

Location

MeSH Terms

Interventions

Caffeine

Intervention Hierarchy (Ancestors)

XanthinesAlkaloidsHeterocyclic CompoundsPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Chih-Hui Chiu

    Sport Science Research Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 6, 2026

First Posted

February 17, 2026

Study Start

January 1, 2026

Primary Completion

February 20, 2026

Study Completion (Estimated)

July 31, 2026

Last Updated

February 17, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations

TW(1)