ClinicalTrials.gov record

Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Efavirenz and Ritonavir on Human Brain P-Glycoprotein

ClinicalTrials.gov ID: NCT01668147

Public ClinicalTrials.gov record NCT01668147. 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.

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ClinicalTrials.gov public records Last synced May 5, 2026, 10:13 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

Influence of Efavirenz and Ritonavir on Human Brain P-Glycoprotein Activity Using PET Imaging

Study identification

NCT ID: NCT01668147
Recruitment status: Completed
Study type: Interventional
Phase: Phase 1, Phase 2
Lead sponsor: Washington University School of Medicine; Other
Enrollment: 13 participants

Conditions and interventions

Conditions

Drug Effects

Interventions

Control - no pretreatment Other
Oral efavirenz Drug
Oral ritonavir Drug
[11C] desmethyl-loperamide Drug

Other · Drug

Eligibility (public fields only)

Age range: 18 Years to 40 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, 2012
Primary completion: May 31, 2016
Completion: Jul 31, 2016
Last update posted: Jan 21, 2020

2012 – 2016

United States locations

U.S. sites: 1
U.S. states: 1
U.S. cities: 1

Facility	City	State	ZIP	Site status
Washington University School of Medicine	St Louis	Missouri	63110	—

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

About this trial record page

What this page shows: Public field values for ClinicalTrials.gov record NCT01668147, 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 Jan 21, 2020 · Synced May 5, 2026

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The complete protocol, eligibility criteria, and contact information for NCT01668147 live on ClinicalTrials.gov.

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