A Study of the Pharmacokinetics and Antiviral Activity of Dolutegravir in the Central Nervous System in HIV-1 Infected ART-naive Subjects

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborators:
Shionogi
GlaxoSmithKline
Information provided by (Responsible Party):
ViiV Healthcare
ClinicalTrials.gov Identifier:
NCT01499199
First received: December 15, 2011
Last updated: December 5, 2013
Last verified: September 2013
Results First Received: August 15, 2013  
Study Type: Interventional
Study Design: Endpoint Classification: Pharmacokinetics Study;   Intervention Model: Single Group Assignment;   Masking: Open Label;   Primary Purpose: Treatment
Condition: Infection, Human Immunodeficiency Virus
Intervention: Drug: Dolutegravir

  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
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Eligible participants received dolutegravir (DTG ) 50 milligrams (mg) once daily (OD) in combination with abacavir/lamivudine (ABC/3TC) for 96 weeks. The primary analysis was performed after the last participant completed 16 weeks on therapy; additional analyses were/are to be conducted after the last participant completed(s) Weeks 2 and 96.

Reporting Groups
  Description
Dolutegravir 50 mg OD Participants received dolutegravir (DTG) 50 milligrams (mg) once daily (OD) in combination with abacavir/lamivudine (ABC/3TC) OD.

Participant Flow:   Overall Study
    Dolutegravir 50 mg OD  
STARTED     13  
Ongoing     11 [1]
COMPLETED     0  
NOT COMPLETED     13  
Adverse Event                 1  
Lack of Efficacy                 1  
Ongoing                 11  
[1] A total of 11 participants were ongoing at the time of the interim analysis of the Week 16 data.



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Dolutegravir 50 mg OD Participants received dolutegravir (DTG) 50 milligrams (mg) once daily (OD) in combination with abacavir/lamivudine (ABC/3TC) OD.

Baseline Measures
    Dolutegravir 50 mg OD  
Number of Participants  
[units: participants]
  13  
Age  
[units: Years]
Mean ± Standard Deviation
  40.2  ± 6.90  
Gender  
[units: Participants]
 
Female     0  
Male     13  
Race/Ethnicity, Customized  
[units: participants]
 
White     13  
Baseline plasma human immunodeficiency virus-1 (HIV-1) ribonucleic acid (RNA) [1]
[units: log10┬ácopies/mL]
Median ( Full Range )
  4.73  
  ( 3.60 to 6.57 )  
Number of participants with Baseline plasma HIV-1 RNA <=100000 copies/mL and >100000 copies/mL [2]
[units: Participants]
 
<=100000 copies/mL     8  
>100000 copies/mL     5  
[1] The absolute value of plasma HIV-1 RNA was measured at Baseline as log10 copies/milliliter (mL).
[2] The number of participants with Baseline plasma HIV-1 RNA <= 100000 copies/mL and >100000 copies/mL was measured.



  Outcome Measures
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1.  Primary:   The Ratio of Total and Unbound DTG Concentrations Between Cerebrospinal Fluid (CSF) and Plasma at Week 2 and Week 16   [ Time Frame: Week 2 and Week 16 ]

2.  Primary:   Total DTG Plasma Concentrations at Week 2 and Week 16   [ Time Frame: Week 2 and Week 16 ]

3.  Primary:   Unbound DTG Plasma Concentrations at Week 2 and Week 16   [ Time Frame: Week 2 and Week 16 ]

4.  Primary:   Plasma DTG Unbound Fraction at Week 2 and Week 16   [ Time Frame: Week 2 and Week 16 ]

5.  Primary:   DTG Concentrations in CSF at Weeks 2 and Week 16   [ Time Frame: Week 2 and Week 16 ]

6.  Secondary:   Number of Participants With Plasma HIV-1 RNA <50 Copies Per Milliliter (c/mL) at Baseline and Weeks 2, 4, 8, 12, and 16   [ Time Frame: Baseline; Weeks 2, 4, 8, 12, and 16 ]

7.  Secondary:   Absolute Values and Change From Baseline in Plasma Human Immunodeficiency Virus (HIV-1) Ribonucleic Acid (RNA) Levels at Weeks 2, 4, 8, 12, 16, 24, and 36   [ Time Frame: Baseline; Weeks 2, 4, 8, 12, 16, 24, and 36 ]

8.  Secondary:   Number of Participants With CSF HIV-1 RNA <50 Copies/Milliliter (c/mL) at Baseline, Week 2, and Week 16   [ Time Frame: Baseline, Week 2, and Week 16 ]

9.  Secondary:   Absolute Values and Change From Baseline in CSF HIV-1 RNA Levels at Week 2 and Week 16   [ Time Frame: Baseline, Week 2, and Week 16 ]

10.  Secondary:   Number of Participants With the Indicated Number of Copies of HIV-1 RNA in Both the CSF and Plasma at Baseline, Week 2, and Week 16   [ Time Frame: Baseline, Week 2, and Week 16 ]

11.  Secondary:   Pearson Correlation Between CSF DTG Concentration and Absolute Values and Change From Baseline (CFB) in CSF HIV-1 RNA at Week 2, Week 16, and Overall   [ Time Frame: From Baseline to Week 16 ]

12.  Secondary:   Absolute Values and Change From Baseline in Cluster of Differentiation 4+ (CD4+) Cell Counts at Weeks 4, 8, 12, 16, 24, and 36   [ Time Frame: Baseline; Weeks 4, 8, 12, 16, 24, and 36 ]

13.  Secondary:   Number of Participants With Post-Baseline HIV-1-associated Conditions, Including Recurrences   [ Time Frame: Baseline through the date the last participant completed Week 16 (a limited number of participants completed the Week 24 and 36 visits) ]

14.  Secondary:   The Numbers of Participants (Par.) With Clinical Adverse Events or Laboratory Abnormalities   [ Time Frame: Baseline (BL) through the date the last participant completed Week (W) 16 (a limited number of participants completed the Week 24 and 36 visits) ]

15.  Secondary:   Number of Participants With Treatment-emergent Genotypic and Phenotypic Resistance to DTG and Other Antiretroviral Therapy (ART)   [ Time Frame: Baseline through the date the last participant completed Week 16 (a limited number of participants completed the Week 24 and Week 36 visits) ]

16.  Secondary:   Absolute Values and Change From Baseline in Cluster of Differentiation 8+ (CD8+) Cell Counts at Weeks 4, 12, 16, and 24   [ Time Frame: Baseline; Weeks 4, 12, 16, and 24 ]
Results not yet posted.   Anticipated Posting Date:   08/2014   Safety Issue:   No


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