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TMC114-TiDP3-C181: Study to Assess the Pharmacokinetics of Darunavir (DRV) With Different Doses of Ritonavir in Healthy Volunteers.

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ClinicalTrials.gov Identifier: NCT00744887
Recruitment Status : Completed
First Posted : September 1, 2008
Last Update Posted : June 9, 2011
Sponsor:
Information provided by:
Tibotec Pharmaceuticals, Ireland

Study Description
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Brief Summary:
The objectives are to determine the effect of different ritonavir doses on darunavir (DRV) oral exposure following once-daily oral dosing of DRV/rtv for 7 days, in order to establish an optimal ritonavir boosting dose for DRV and to evaluate short-term safety and tolerability.

Condition or disease Intervention/treatment Phase
HIV AIDS Drug: Darunavir Phase 1

Detailed Description:
This is a Phase I, open-label, randomized (study drug assigned by chance), 3-way crossover trial in healthy volunteers to assess the pharmacokinetics of darunavir (DRV), co-administered with different doses of ritonavir. The trial population will consist of 18 healthy adult volunteers. During 3 subsequent sessions, each volunteer will receive in a randomized way: Treatments A, B and C. In Treatment A, 800 mg DRV once-daily and 100 mg ritonavir once-daily will be administered. In Treatment B, 800 mg DRV once-daily and 50 mg ritonavir once-daily will be administered. In Treatment C, 800 mg DRV once-daily and 20 mg ritonavir once-daily will be administered. All treatments will be administered for 7 days and intake of DRV and ritonavir will be under fed conditions. DRV will be formulated as a 400 mg tablet; ritonavir will be formulated as an oral solution containing 80mg/mL ritonavir. In each treatment session, full pharmacokinetic profiles of DRV and ritonavir will be determined up to 24 hours after administration on Day 1 and up to 72 hours after administration on Day 7. There will be a washout period of at least 7 days between subsequent treatments. Safety and tolerability will be evaluated continuously throughout the trial. During 3 subsequent sessions, each volunteer will receive in a randomized way Treatments A, B and C. In Treatment A, 800/100 mg DRV/rtv once-daily will be administered. In Treatment B, 800/50 mg DRV/rtv once-daily will be administered. In Treatment C, 800/20 mg DRV/rtv once-daily will be administered. All treatments will be administered for 7 days. DRV will be formulated as a 400 mg tablet; ritonavir will be formulated as an oral solution containing 80mg/mL ritonavir.

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 21 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase I, Open-label, Randomized, 3-way Crossover Trial to Assess the Pharmacokinetics of Darunavir (DRV) Given Once-daily With Different Doses of Ritonavir in Healthy Subjects.
Study Start Date : August 2008
Actual Primary Completion Date : December 2008
Actual Study Completion Date : December 2008

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Arms and Interventions
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Outcome Measures
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Primary Outcome Measures :
  1. To determine the effect of different ritonavir doses (20, 50, 100 mg ritonavir) in DRV oral exposure following once-daily oral dosing of DRV/rtv for 7 days, in order to establish an optimal ritonavir boosting dose for DRV

Secondary Outcome Measures :
  1. To evaluate short-term safety and tolerability of DRV following administration of DRV 800 mg once-daily in the presence of different doses of ritonavir for 7 days in healthy volunteers

Eligibility Criteria
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Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Healthy on the basis of a medical evaluation that reveals the absence of any clinically relevant abnormality and includes a physical examination, medical history, electrocardiogram (ECG), vital signs, and the results of blood biochemistry, blood coagulation and hematology tests and a urinalysis carried out at screening

Exclusion Criteria:

  • A positive HIV-1 or HIV-2 test at screening
  • Hepatitis A, B, or C infection (confirmed by hepatitis A antibody IgM, hepatitis B surface antigen [with a positive hep B PCR], or hepatitis C virus antibody, respectively) at Screening
  • Any history of significant skin disease such as, but not limited to, rash or eruptions, food or drug allergy, dermatitis, eczema, psoriasis, folliculitis, or urticaria
  • Use of concomitant medication, including over-the-counter products, herbal preparations and dietary supplements. Concomitant medication must have been discontinued at least 14 days before the first dose of trial medication except for paracetamol (acetaminophen), hormone replacement therapy and hormonal contraceptives
  • Participation in an investigational drug trial within 60 days prior to the first intake of trial medication.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00744887


Sponsors and Collaborators
Tibotec Pharmaceuticals, Ireland
Investigators
Study Director: Tibotec Pharmaceuticals Clinical Trial Tibotec Pharmaceutical Limited
More Information
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Additional Information:
Clinical Study Report Synopsis of TMC114-TiDP3-C181: an open-label, randomized, 3-way crossover trial to assess the pharmacokinetics of darunavir (DRV) given once-daily with different doses of ritonavir in healthy subjects.  This link exits the ClinicalTrials.gov site

ClinicalTrials.gov Identifier: NCT00744887     History of Changes
Other Study ID Numbers: CR015421
First Posted: September 1, 2008    Key Record Dates
Last Update Posted: June 9, 2011
Last Verified: April 2010

Keywords provided by Tibotec Pharmaceuticals, Ireland:
TMC114-TiDP3-C181
TMC114-C181, health volunteers, Darunavir, ritonavir oral solution

Additional relevant MeSH terms:
Ritonavir
Darunavir
HIV Protease Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
 Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Cytochrome P-450 CYP3A Inhibitors
Cytochrome P-450 Enzyme Inhibitors