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HealthyPhase 1NCT00809718

The Effect of Rifapentine on Raltegravir

A Phase 1 study testing Raltegravir and rifapentine in people with Healthy, run by The University of Texas Health Science Center at San Antonio at 2 sites 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

The aim of this study is to study the effect of rifapentine on plasma concentrations of raltegravir. Read more about this study

Who is it for?
Ages 18 to 99 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Raltegravir and rifapentine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
2 sitesUnited States
Study dates
Feb 2009to Aug 2011
Phase
Phase 1
Are there results?
None posted in the registry

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 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Male or non-pregnant, non-nursing female age > 18 years in good health
  • Provision of informed consent for the study.
  • HIV-uninfected. A prior negative HIV test (ELISA) must be obtained before enrollment.
  • Willingness to have PK sampling in a day clinic or to be admitted overnight to a hospital on three occasions.
  • Women of child-bearing potential must agree to practice an adequate method of birth control during the study and for 30 days after the last dose of study medication. Barrier methods of contraception or abstinence from sexual activity are satisfactory methods of birth control.
  • Karnofsky score ≥ 90.
Show all 13Show fewer
  • Laboratory screening before enrollment:
  • Hematocrit > 30 percent (most recent value)
  • AST < 2 times the upper limit of normal
  • ALT < 2 times the upper limit of normal
  • Bilirubin < 2 times the upper limit of normal
  • Creatinine < 1.5 times the upper limit of normal
  • Negative urine drug screen

Who cannot join

  • Pregnancy or breast-feeding.
  • Use of a medication or food that has the potential to alter the concentrations of raltegravir or rifapentine, within the 14 days prior to or during the periods of pharmacokinetic monitoring.
  • Known intolerance to raltegravir or rifamycin antibiotics or prior use in the last 30 days.
  • Weight less than 46 kg or greater than 102 kg.
  • Prior gastrointestinal surgery.
  • Infection with Hepatitis B or Hepatitis C by serologies.
  • Co-morbidity for which concomitant, current medications are taken regularly. If concomitant medications are taken intermittently, these medications should not have potential to alter the concentrations of raltegravir or rifapentine.
  • Current imprisonment

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Audie L Murphy Veterans Administration Hospital

    San Antonio, Texas, 78229

  • University of Texas Health Science Center

    San Antonio, Texas, 78229

Other trials in United States

About this study

Official title: The Effect of Rifapentine on Plasma Concentrations of Raltegravir

The aim of this study is to study the effect of rifapentine on plasma concentrations of raltegravir.

Read the detailed description

Primary Objective

To compare the pharmacokinetics parameter values (geometric mean Cmin and AUC) of raltegravir at 400 mg q12h alone to raltegravir at 400 mg q12h co-administered in combination with rifapentine 900 mg once weekly, and to raltegravir at 400 mg q12h co-administered in combination with rifapentine 600 mg per day, 5 days per week.

Secondary Objective

To assess the tolerability and safety of concomitant administration of raltegravir and rifapentine in healthy volunteers.

Design

This study is a three-period, one-sequence, open label, pharmacokinetic study of the raltegravir-rifapentine interactions in healthy, male and female volunteers. Up to 21 subjects may be enrolled to achieve the estimated sample size of 16 completing subjects. All study medication will be self-administered except on the days of pharmacokinetic sampling. All subjects will participate in three sampling periods and be studied in a day clinic or be admitted overnight to a hospital.

Conditions
Healthy
Being tested
Raltegravir and rifapentine
Keywords
Raltegravir, Pharmacokinetics, Rifapentine, Drug Kinetics

What participants receive

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

  • Raltegravir and rifapentineDrug

    Also called Isentress - Raltegravir, Priftin - Rifapentine

    Period 1- Raltegravir 400 mg q12h by mouth for 4 days

    Period 2- Rifapentine 900 mg taken by mouth once per week for 3 doses and raltegravir 400 mg q12h by mouth for 4 days

    Period 3- Rifapentine 600 mg taken by mouth once daily for 5 of 7 days per week for 10 doses and raltegravir 400 mg q12h by mouth for 4 days

Study groups in NCT00809718
Study groupRoleWhat they receive
raltegravir and rifapentineOtherConcomitant administration of raltegravir and rifapentine in healthy volunteers
Receives: Drug: Raltegravir and rifapentine

What is being measured

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

  1. Raltegravir pharmacokinetics (Cmin and AUC)

    Measured: Eight weeks

Secondary outcomes (1)
  1. Tolerability and safety of concomitant raltegravir and rifapentine administration

    Measured: Eight weeks

Timeline

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

  1. First posted17 Dec 2008 (estimated)
  2. Study startFeb 2009
  3. Primary completionMay 2011
  4. Study completionAug 2011

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
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00809718
Sponsor's protocol ID
TBTC 29RR
Status last verified
Oct 2015
First submitted
15 Dec 2008
Last updated
22 Oct 2015
Results posted
No
Data monitoring committee
Yes

Publications

  • Weiner M, Egelund EF, Engle M, Kiser M, Prihoda TJ, Gelfond JA, Mac Kenzie W, Peloquin CA. Pharmacokinetic interaction of rifapentine and raltegravir in healthy volunteers. J Antimicrob Chemother. 2014 Apr;69(4):1079-85. doi: 10.1093/jac/dkt483. Epub 2013 Dec 15.

    PubMed 24343893

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Raltegravir and rifapentine in people with Healthy, run by The University of Texas Health Science Center at San Antonio at 2 sites 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 13 inclusion and 8 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 22 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Raltegravir pharmacokinetics (Cmin and AUC) (time frame: Eight weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00809718, which also lists 1 linked publication.

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 22 Oct 2015.

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