CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 120 enrolled
Drug / intervention
Caffeine Anhydrous with small sucrose pill +3 moredrug
Likely dose
Caffeine Anhydrous with small sucrose pill 90 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03694886
NCT03694886Phase 4Completed
CompareCT.gov

The Effect of Tablet Size on Cognitive Performance: A Randomized Control Trial Using Caffeine

University of Colorado, Denver·interventional·Posted Oct 3, 2018·Updated Apr 17, 2019

In Brief

A Phase 4 clinical trial evaluating Caffeine Anhydrous with small sucrose pill, Placebo - large sucrose pill, and 2 other interventions for Placebo Effect. Completed, enrolled 120 participants across 1 site.

Detailed Summary

This study aims to assess if tablet size, due to placebo effect, alters participants' performance on cognitive tests after consuming caffeine. Participants will be randomly assigned to one of four groups: 1) 90 mg caffeine with a 1 mm diameter sucrose pillule; 2) no caffeine with the small sucrose pillule; 3) 90 mg caffeine with a 5 mm sucrose pillule; 4) no caffeine with the large sucrose pillule.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsPlacebo Effect
CountriesUnited States
Collaborators--

Timeline

Phase 4CompletedFinished
20192020202120222023202420252026
First PostedOct 3, 2018
Enrollment StartOct 31, 2018
Primary CompletionMar 1, 2019
TodayJul 2, 2026
Enrollment to primary: 4 monthsPosted 7.7 years ago

Interventions

Caffeine Anhydrous with small sucrose pilldrug

caffeine anhydrous that has been weighed out to 90 mg per dose presented with a 1 mm sucrose pillule

Placebo - large sucrose pillother

sucrose pillules of 5 mm diameter will be given to all participants in the large pill groups

Caffeine Anhydrous with large sucrose pilldrug

caffeine anhydrous that has been weighed out to 90 mg per dose presented with a 5 mm sucrose pillule

Placebo - small sucrose pillother

sucrose pillules of 1 mm diameter will be given to all participants in the small pill groups