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A Phase 2B Multicenter, Randomized, Comparative Trial Of UK-453,061 Versus Etravirine In Combination With Darunavir/Ritonavir And A Nucleos(t)Ide Reverse Transcriptase Inhibitor For The Treatment Of Antiretroviral Experienced HIV-1 Infected Subjects With Evidence Of NNRTI Resistant HIV-1
This study is currently recruiting participants.
Verified May 2012 by Pfizer

First Received on January 15, 2009.   Last Updated on May 10, 2012   History of Changes
Sponsor: Pfizer
Information provided by (Responsible Party): Pfizer
ClinicalTrials.gov Identifier: NCT00823979
  Purpose

This is a 96 week study to determine if UK- 453,061 in combination with Darunavir /ritonavir and a Nucleos(t)ide Reverse Transcriptase inhibitor is as efficacious, safe and tolerable as etravirine in combination with Darunavir /ritonavir and a Nucleos(t)ide Reverse Transcriptase inhibitor in HIV-1 infected patients who have been previously treated with antiretroviral drugs and have NNRTI resistance mutations.


Condition Intervention Phase
HIV-1
Drug: UK-453,061 Dose 1
Drug: UK-453,061 Dose 2
Drug: Etravirine
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase 2B Multicenter, Randomized, Comparative Trial Of UK-453,061 Versus Etravirine In Combination With Darunavir/Ritonavir And A Nucleos(t)Ide Reverse Transcriptase Inhibitor For The Treatment Of Antiretroviral Experienced HIV-1 Infected Subjects With Evidence Of NNRTI Resistant HIV-1

Resource links provided by NLM:


Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Percentage of subjects with HIV-1 RNA <50 copies/mL at 24 weeks. [ Time Frame: 24 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • The percentage of subjects with HIV-1 RNA <50 copies/mL and <400 copies/mL at various time points [ Time Frame: 24-96 weeks ] [ Designated as safety issue: No ]
  • The change from baseline in log10 transformed HIV 1 RNA levels [ Time Frame: 24-96 weeks ] [ Designated as safety issue: No ]
  • Assessment of Genotypic and phenotypic resistance at various time points [ Time Frame: TBD ] [ Designated as safety issue: No ]
  • The time-averaged difference (TAD) in log10 transformed HIV 1 RNA levels at various time points. [ Time Frame: 24-96 weeks ] [ Designated as safety issue: No ]
  • The percentage of subjects with virologic response at different time points. [ Time Frame: 48-96 weeks ] [ Designated as safety issue: No ]
  • Change from baseline in CD4+ cell counts (absolute and percentage). [ Time Frame: 24-96 weeks ] [ Designated as safety issue: No ]
  • Safety and tolerability as measured by spontaneous adverse event reports, serious adverse events and safety laboratory tests. [ Time Frame: 96 weeks ] [ Designated as safety issue: Yes ]
  • Pharmacokinetic (PK) and pharmacokinetic/pharmacodynamic (PK/PD) analyses (to be reported separately). [ Time Frame: 48 weeks ] [ Designated as safety issue: No ]

Estimated Enrollment: 90
Study Start Date: March 2009
Estimated Study Completion Date: May 2013
Estimated Primary Completion Date: May 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: UK- 453,061 Dose One Drug: UK-453,061 Dose 1
UK 453,061 750 mg QD + one optimized NRTI + darunavir/ritonavir.
Experimental: UK- 453,061 Dose Two Drug: UK-453,061 Dose 2
UK 453,061 1000 mg QD + one optimized NRTI + darunavir/ritonavir.
Active Comparator: Comparator Drug: Etravirine
Etravirine 200 mg BID + one optimized NRTI + darunavir/ritonavir.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Male or female at least 18 years of age available for a follow-up period of at least 96 weeks.
  • HIV 1 RNA viral load of greater then 500 copies/mL.
  • Negative urine pregnancy test.

Exclusion Criteria:

  • Suspected or documented active, untreated HIV-1 related opportunistic infection or other condition requiring acute therapy at the time of randomization.
  • Subjects with acute Hepatitis B and/or C within 30 days of randomization.
  • Previous use of Darunavir or etravirine
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00823979

Contacts
Contact: Pfizer CT.gov Call Center 1-800-718-1021

  Show 63 Study Locations
Sponsors and Collaborators
Pfizer
Investigators
Study Director: Pfizer CT.gov Call Center Pfizer
  More Information

Additional Information:
No publications provided

Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT00823979     History of Changes
Other Study ID Numbers: A5271022
Study First Received: January 15, 2009
Last Updated: May 10, 2012
Health Authority: United States: Food and Drug Administration

Keywords provided by Pfizer:
HIV-1 NNRTI Treatment Experienced
may have Protease inhibitor experience

Additional relevant MeSH terms:
Reverse Transcriptase Inhibitors
Ritonavir
Darunavir
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Therapeutic Uses
HIV Protease Inhibitors
Protease Inhibitors
Anti-HIV Agents

ClinicalTrials.gov processed this record on May 23, 2012