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HealthyPhase 1NCT01472380

A Drug-Drug Interaction Study Between Fenofibric Acid and Efavirenz

A Phase 1 study testing efavirenz and fenofibric acid 105 mg in people with Healthy, run by Mutual Pharmaceutical Company, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
efavirenz and fenofibric acid 105 mg
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
Nov 2011to Jan 2012
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy adults 18-45 years of age, non-smoking and non-pregnant (post-menopausal, surgically sterile or using effective contraceptive measures), with a body mass index (BMI) greater or equal to 18 and less than or equal to 32kg/m2, hemoglobin >12 g/dL.

Who cannot join

  • recent participation (within past month) in other research studies
  • Recent significant blood donation or plasma donation
  • Pregnant or lactating
  • Test positive at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HbsAg), or hepatitis C virus (HCV)
  • Recent (2-year) history or evidence of alcoholism or drug abuse
  • History or presence of significant cardiovascular, pulmonary, hepatic, gallbladder or biliary tract, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, psychiatric disease or active sexually transmitted disease
Show all 9Show fewer
  • Subjects who have used any drugs or substances known to inhibit or induce cytochrome (CYP) P450 enzymes and/or P-glycoprotein (P-gp) within 28 days prior to the first dose and throughout the study
  • Drug allergies or sensitivities to efavirenz, fenofibrate, fenofibric acid or any component of the two formulations
  • Subjects who have had a tattoo or body piercing within 30 days prior to administration of study medication

Trial locations and contacts

1 site in 1 country.

United States1 site
  • INC Research

    Morgantown, West Virginia, 26505

Other trials in United States

About this study

Official title: An Open-label, Drug Interaction Study to Investigate the Effects of Steady-State Fenofibric Acid on the Single-Dose Pharmacokinetics of Efavirenz in Healthy Subjects

Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects.

Read the detailed description

Efavirenz is predominantly metabolized by cytochrome P450 (CYP) 2B6. Fenofibric Acid is an inhibitor of CYP2B6. This study will evaluate the effect of multiple doses of fenofibric acid at steady-state on the pharmacokinetics of single-dose efavirenz in healthy adult subjects. This study will not evaluate the the effects of efavirenz on fenofibric acid pharmacokinetics. On study Day 1 after a fast of at least 10 hours, thirty healthy, non-smoking, non-obese, non-pregnant adult volunteers between the ages of 18 and 45 will be given one oral dose of efavirenz (1 x 600 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 24 hours post-dose on a confined basis at times sufficient to adequately define the pharmacokinetics of efavirenz. Blood sampling will then continue on a non-confined basis at 48, 72, 96 and 120 hours post-dose. A 21 day washout period will be completed after the first dose of efavirenz on Day 1. On Days 22 through 30, all subjects will receive a single oral dose of fenofibric acid (1 x 105 mg tablet) in the morning without regard to meals. On the morning of Day 31 after a fast of at least 10 hours, all study participants will receive co-administered single oral doses of efavirenz (1 x 600 mg tablet) and fenofibric acid (1 x 105 mg tablet). Fasting will continue for 4 hours after the dose. Blood samples will be drawn from all participants before dosing and for 24 hours post-dose on a confined basis at times sufficient to adequately determine the pharmacokinetics of efavirenz. Blood sampling will then continue on a non-confined basis at 48, 72, 96 and 120 hours post-dose. A further goal of this study is to evaluate the safety and tolerability of this regimen in healthy volunteers. Subjects will be monitored throughout participation in the study for adverse reactions to the study drug and/or procedures. Vital signs (seated blood pressure and pulse) will be measured prior to dosing and at approximately 1, 2, 3 and 5 hours post-dose on Days 1, 22 and 31 to coincide with peak plasma concentrations of both efavirenz and fenofibric acid. Blood pressure and pulse will also be obtained at 24 hours post-dose on Days 2 and 32 prior to discharge from the clinical study unit. All adverse events whether elicited by query, spontaneously reported, or observed by clinic staff will be evaluated by the Investigator and reported in the subject's case report form.

Conditions
Healthy
Being tested
efavirenz, fenofibric acid 105 mg

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • efavirenzDrug

    Also called SUSTIVA

    600 mg

  • fenofibric acid 105 mgDrug

    Also called FIBRICOR

    fenofibric acid 105 mg

Study groups in NCT01472380
Study groupRoleWhat they receive
Efavirenz 600mg aloneActive comparatorefavirenz 600mg by mouth taken on Day 1
Receives: Drug: efavirenz
Efavirenz co-administered with fenofibric acidActive comparatorco-administered oral doses of efavirenz 600 mg and fenofibric acid 105 mg taken on Day 31
Receives: Drug: efavirenz; Drug: fenofibric acid 105 mg

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pharmacokinetics: Maximum Plasma Concentration (Cmax)

    The maximum or peak concentration that the drug reaches in the plasma for efavirenz

    Measured: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96, and 120 hours after dose administration

  2. Pharmacokinetics: Area Under the Concentration Versus Time Curve From Time 0 to Time t[AUC(0-t)]

    The area under the plasma concentration versus time curve from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule for efavirenz

    Measured: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96, and 120 hours after dose administration

  3. Pharmacokinetics: Area Under the Concentration Versus Time Curve From Time 0 Extrapolated to Infinity [AUC(0-infinity]

    The area under the plasma concentration versus time curve from time 0 to infinity. [AUC(0 to infinity)] was calculated as the sum of AUC (0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant for efavirenz.

    Measured: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96, and 120 hours after dose administration

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Nov 2011 (estimated)
  2. Study startNov 2011
  3. Primary completionDec 2011
  4. Study completionJan 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01472380
Sponsor's protocol ID
MPC-028-11-1001
Status last verified
Jul 2012
First submitted
11 Nov 2011
Last updated
1 Aug 2012
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing efavirenz and fenofibric acid 105 mg in people with Healthy, run by Mutual Pharmaceutical Company, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Aug 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 Jul 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pharmacokinetics: Maximum Plasma Concentration (Cmax) (time frame: serial pharmacokinetic blood samples drawn immediately prior to dosing on Days 1 and 31 and then 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 48, 72, 96, and 120 hours after dose administration). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Aug 2012.

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