Pharmacokinetics of Tenofovir and Tenofovir-diphosphate, Emtricitabine and Emtricitabine-triphosphate, and Rilpivirine Once Daily Over 14 Days Following Drug Intake Cessation in Healthy Volunteers

The purpose of the study is to look at the levels of three HIV medications: tenofovir, emtricitabine, and rilpivirine in blood after the drug intake has been stopped in order to understand how long these drugs persist in the blood. The study will specifically look at blood levels of these three drugs (taken as a 3-in-1 tablet) after taking them every day for 14 days.

The duration of the subjects involvement in the study will be up to 23 days plus a screening visit which will take place up to 4 weeks prior to the start of the study, and a follow up visit which takes place 16-22 days after the last dose of study medication.

This study is not randomised which means that all participants will receive all study medications in the same order. The participant and the study doctor will know which study medications you are taking at all times during the study.

Study Overview

• Status: Completed
• Conditions: HIV
• Intervention / Treatment: Drug: Eviplera®

• Study Type: Interventional
• Enrollment (Actual): 18
• Phase: Phase 1

Contacts and Locations

Study Locations

• United Kingdom
  • London, United Kingdom, SW10 9NH
    • St Stephen's AIDS Trust

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

Subjects must meet all of the following inclusion criteria within 28 days prior to the baseline visit:

• The ability to understand and sign a written informed consent form, prior to participation in any screening procedures and must be willing to comply with all study requirements
• Male or non-pregnant, non-lactating females
• Between 18 to 65 years, inclusive
• Body Mass Index (BMI) of 18 to 35 kg/m2, inclusive
• Women of childbearing potential (WOCBP) must be using an adequate method of contraception to avoid pregnancy throughout the study and for a period of at least 12 weeks after the study
• Willing to consent to their personal details being entered onto The Over-volunteering Prevention Scheme (TOPS) database
• Willing to provide photographic identification at each visit
• Registered with a GP in the UK

Exclusion Criteria:

Subjects who meet any of the following exclusion criteria are not to be enrolled in this study:

• Any significant acute or chronic medical illness
• Evidence of organ dysfunction or any clinically significant deviation from normal in physical examination, vital signs, ECG or clinical laboratory determinations
• Positive blood screen for hepatitis B surface antigen and/or C antibodies
• Positive blood screen for HIV-1 and/or 2 antibodies
• Current or recent (within 3 months) gastrointestinal disease
• Known allergy to lactose monohydrate, sunset yellow aluminium lake (E110), and patients with galactose intolerance, the Lapp lactase deficiency, or glucose-galactose malabsorption
• Clinically relevant alcohol or drug use (positive urine drug screen) or history of alcohol or drug use considered by the Investigator to be sufficient to hinder compliance with treatment, follow-up procedures or evaluation of adverse events. Smoking is permitted, but tobacco intake should remain consistent throughout the study
• Exposure to any investigational drug or placebo within 3 months of first dose of study drug
• Use of any other drugs (unless approved by the Investigator), including over-the-counter medications and herbal preparations, within two weeks prior to first dose of study drug, unless approved/prescribed by the Principal Investigator as known not to interact with study drugs.
• Females of childbearing potential without the use of effective non-hormonal birth control methods, or not willing to continue practising these birth control methods for at least 12 weeks after the end of the treatment period

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: NA
• Interventional Model: SINGLE_GROUP
• Masking: NONE

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: Eviplera®; Participants will take Eviplera every day for 14 days. Levels of the active ingredients, Tenofovir disoproxil fumarate, emtricitabine, rilpivirine hydrochloride will be measured in in blood after the drug intake has been stopped in order to understand how long these drugs persist in the blood.	Drug: Eviplera®

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Plasma concentrations of tenofovir, emtricitabine and rilpivirine, and intracellular concentrations of tenofovir di-phosphate and emtricitabine tri-phosphate	To assess the pharmacokinetics of plasma tenofovir (TFV) and emtricitabine (FTC), and their active intracellular anabolites, tenofovir-diphosphate (TFV-DP) and emtricitabine-triphosphate (FTC-TP), and plasma rilpivirine over 14 days following drug intake cessation, in HIV negative healthy volunteers	23 days

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Safety and tolerability of Eviplera®	To assess the safety and tolerability of Eviplera over 14 days in HIV negative healthy volunteers.	14 days

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
Genetic polymorphisms and exposure to Eviplera®	To investigate the association between genetic polymorphisms in drug disposition genes and drug exposure.	23 Days

Collaborators and Investigators

• Sponsor: St Stephens Aids Trust

Study record dates

Study Major Dates

• Study Start: March 1, 2013
• Primary Completion (ACTUAL): July 1, 2013
• Study Completion (ACTUAL): July 1, 2013

Study Registration Dates

• First Submitted: February 20, 2013
• First Submitted That Met QC Criteria: February 20, 2013
• First Posted (ESTIMATE): February 21, 2013

Study Record Updates

• Last Update Posted (ESTIMATE): July 25, 2013
• Last Update Submitted That Met QC Criteria: July 24, 2013
• Last Verified: July 1, 2013

More Information

Terms related to this study

• Other Study ID Numbers: SSAT 048