The Effects of Caffeine on Vestibular Evoked Myogenic Potentials in Healthy Subjects

Phase 4

• Conditions: Healthy Subjects
• Interventions: Drug: Caffeine

• Registration Number: NCT01693809
• Lead Sponsor: Hospital do Servidor Publico Estadual

Brief Summary

The principal aim of this study is to evaluate the presence of changes in cervical vestibular evoked myogenic potentials (VEMPc) after acute intake of caffeine in healthy subjects.

Secondarily, it wants to standardize normal values exam VEMPc in otorhinolaryngology service of the hospital.

Detailed Description

Not available

Study Timeline

• Study Start: 2012-01
• Status Verified: 2012-09
• Study First Submitted: 2012-09-20
• Study First Submitted QC: 2012-09-24
• Study First Posted: 2012-09-26
• Last Update Submitted: 2012-09-29
• Primary Completion: 2012-10
• Last Update Posted: 2012-10-02
• Study Completion: 2013-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 25

Inclusion Criteria

• healthy subjects

Exclusion Criteria

• hearing impairment
• caffeine abuse 24 hours before the test
• medication remains
• hypertension, dyslipidemia, diabetes mellitus or sleep disorders.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Caffeine	Caffeine	Caffeine 420mg, one time

Primary Outcome Measures

Name	Time	Method
Alteration of p13 and n23 latency and p13-n23 amplitude before and after caffeine intake.	60 minutes

Trial Locations

Locations (1)

Hospital do Servidor Publico Estadual; 🇧🇷 São Paulo, Brazil