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Pharmacokinetics, Safety And Toleration Of Maraviroc Administered To Subjects With Various Degrees Of Renal Impaired And Normal Renal Function

This study has been completed.
Sponsor:
Collaborator:
Pfizer
Information provided by:
ViiV Healthcare
ClinicalTrials.gov Identifier:
NCT00717067
First received: July 15, 2008
Last updated: November 10, 2010
Last verified: November 2010
Results First Received: November 16, 2009  
Study Type: Interventional
Study Design: Allocation: Non-Randomized;   Endpoint Classification: Pharmacokinetics Study;   Intervention Model: Parallel Assignment;   Masking: Open Label;   Primary Purpose: Treatment
Condition: Human Immunodeficiency Virus (HIV) Infection
Interventions: Drug: Maraviroc
Drug: Ritonavir
Drug: Saquinavir

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Two centers took part in this study between 15 July 2008 and 21 November 2008.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Subjects were enrolled into treatment groups (healthy subjects, mild, moderate, severe renal impairment, or end stage renal impairment on hemodialysis) based on creatinine clearance results obtained closest to the dosing date at screening as determined by the Cockcroft-Gault equation (with the exception of subjects undergoing hemodialysis).

Reporting Groups
  Description
Healthy Subjects (I) Maraviroc single 300 mg dose, followed 4 days later by (II) Maraviroc 150 mg twice a day (BID) co-administered with saquinavir 1,000 mg/ritonavir 100 mg twice a day (BID) for 6 days, and a single dose of both agents on Day 7.
Mild Renal Impairment Maraviroc 150 mg once a day (QD) co-administered with saquinavir 1,000 mg/ritonavir 100 mg twice a day (BID) for 7 days.
Moderate Renal Impairment Maraviroc 150 mg every 48 hours co-administered with saquinavir 1,000 mg/ritonavir 100 mg twice a day (BID) for 7 days.
Severe Renal Impairment Maraviroc 300 mg single dose.
ESRD: Single Dose (I) Maraviroc single dose one hour following completion of morning hemodialysis, followed at least 1 week later by (II) Maraviroc single dose three hours prior to start of hemodialysis.

Participant Flow for 3 periods

Period 1:   Part 1a: Normal/Mild/Moderate Group
    Healthy Subjects     Mild Renal Impairment     Moderate Renal Impairment     Severe Renal Impairment     ESRD: Single Dose  
STARTED     6     6     6     0     0  
COMPLETED     6     6     5     0     0  
NOT COMPLETED     0     0     1     0     0  
Adverse Event                 0                 0                 1                 0                 0  

Period 2:   Part 1b: Severe Renal Impairment
    Healthy Subjects     Mild Renal Impairment     Moderate Renal Impairment     Severe Renal Impairment     ESRD: Single Dose  
STARTED     0     0     0     6     0  
COMPLETED     0     0     0     6     0  
NOT COMPLETED     0     0     0     0     0  

Period 3:   Part 2: End Stage Renal Disease
    Healthy Subjects     Mild Renal Impairment     Moderate Renal Impairment     Severe Renal Impairment     ESRD: Single Dose  
STARTED     0     0     0     0     6  
COMPLETED     0     0     0     0     6  
NOT COMPLETED     0     0     0     0     0  



  Baseline Characteristics


  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Area Under the Plasma Concentration Time-curve From Zero to the Last Measured Concentration (AUClast)   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

2.  Primary:   AUCtau   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

3.  Primary:   Maximum Observed Plasma Concentration (Cmax)   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

4.  Secondary:   Plasma Protein Binding   [ Time Frame: 2 hours post-dose; normal Day -3 and Day 7; mild moderate: Day 7; severe and ESRD: Day 1 ]

5.  Secondary:   Area Under the Time Curve From 0 to Infinity (AUCinf)   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72 ]

6.  Secondary:   Time of First Occurrence (Tmax)   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

7.  Secondary:   Half-life (t1/2)   [ Time Frame: Pre-dose, post-dose hours 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

8.  Secondary:   Renal Clearance (CLR) in Subjects With Normal, Mild, Moderate and Severe Renal Function   [ Time Frame: Hour 0 (prior to MVC dosing [single dose] or prior to last MVC dose [multiple dose]) to 72 hours post-dose ; hours 0, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

9.  Secondary:   Derivation of Renal Clearance in Subjects With Normal, Mild, Moderate and Severe Renal Function: Ae   [ Time Frame: Hour 0 (prior to MVC dosing [single dose] or prior to last MVC dose [multiple dose]) to 72 hours post-dose ; hours 0, 0.5, 1, 2, 3, 4, 6, 8, 12, 24, 48, and 72. ]

10.  Secondary:   Hemodialysis Clearance of Maraviroc (MVC) in Subjects With End Stage Renal Disease (ESRD) Undergoing Hemodialysis: CLdD   [ Time Frame: Before dialysis ]

11.  Secondary:   Safety and Tolerability of Maraviroc in the Absence and Presence of a Potent CYP3A4 Inhibitor in Subjects With Various Degrees of Renal Impairment or Undergoing Hemodialysis: Number of Subjects With Maximum Increase and Decrease in Supine Blood Pressure   [ Time Frame: Normal renal function: screening, Day -3 to Day -1; normal, mild and moderate RI: Day 7 to Day 10 and follow-up; severe RI: Day 1 to Day 4 and follow-up; ESRD: Day 1, Day 4, and follow-up ]

12.  Secondary:   Safety and Tolerability of Maraviroc in the Absence and Presence of a Potent CYP3A4 Inhibitor in Subjects With Various Degrees of Renal Impairment or Undergoing Hemodialysis: Number of Subjects With Pulse Rate < 40 and > 120 Beats Per Minute   [ Time Frame: Normal renal function: screening, Day -3 to Day -1; normal, mild and moderate RI: Day 7 to Day 10 and follow-up; severe RI: Day 1 to Day 4 and follow-up; ESRD: Day 1, Day 4, and follow-up ]

13.  Secondary:   Safety and Tolerability of Maraviroc in the Absence and Presence of a Potent CYP3A4 Inhibitor in Subjects With Various Degrees of Renal Impairment or Undergoing Hemodialysis: Number of Subjects With Maximum EGC QTC, QTCB and QTCF Intervals   [ Time Frame: Normal renal function: screening, Day -3 and Day -1; normal renal function, mild and moderate RI: Day 7 to Day 9 and follow-up; severe RI: screening, Day 1, Day 3, Day 4, and follow-up; ESRD: screening, Day 1, Day 3, Day 4, and follow-up ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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