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Influence of Caffeine on Psychomotor Vigilance and Carbon Dioxide Tolerance During Graded Hypercapnia

NCT06636825 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 29

Last updated 2024-10-15

No results posted yet for this study

Summary

The aim of this randomized, double-blind, placebo-controlled crossover trial is to determine the effects of caffeine vs. placebo on psychomotor vigilance and carbon dioxide tolerance during graded hypercapnia.

Conditions

  • Hypercapnia

Interventions

OTHER

Graded hypercapnia

Volunteers breathe 0%, 2%, 4%, 6%, and 8% CO2 (with 21% O2, balance nitrogen) for 12 minutes each

DRUG

Caffeine

400 mg caffeine capsule taken in a single dose 1 hour prior to graded hypercapnia

DRUG

Placebo

Placebo (microcrystalline cellulose) capsule taken in a single dose 1 hour prior to graded hypercapnia

Sponsors & Collaborators

  • United States Army Research Institute of Environmental Medicine

    lead FED

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-11-09
Primary Completion
2024-09-17
Completion
2024-09-17

Countries

  • United States

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06636825 on ClinicalTrials.gov