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Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of USP Methylene Blue on Cognitive and fMRI Brain Activity

ClinicalTrials.gov ID: NCT01836094

Public ClinicalTrials.gov record NCT01836094. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 12:42 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Beneficial Effects of Methylene Blue on Human Cognitive and fMRI Measures

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of the study is to evaluate whether low-dose USP methylene blue (MB) will: i) improve short-term memory retention in a delayed match-to-sample task, ii) reduce reaction time in a psychomotor vigilance test, and iii) enhance responses to a visual-motor task as measured by functional magnetic resonance imaging (fMRI). A single low-dose MB or placebo will be orally administered to self-declared healthy adults using double-blind study design. Non-invasive fMRI data will be acquired before and after MB administration in the same subjects. Each study will take 2-3 hours, inclusive of an hour break in between.

Study identification

NCT ID
NCT01836094
Recruitment status
Completed
Study type
Interventional
Phase
Early Phase 1
Enrollment
36 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 65 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 31, 2013
Primary completion
Feb 29, 2016
Completion
Feb 29, 2016
Last update posted
Apr 10, 2017

2013 – 2016

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Research Imaging Institute, The University of Texas Health Science Center at San Antonio San Antonio Texas 78229

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01836094, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Apr 10, 2017 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01836094 live on ClinicalTrials.gov.

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