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A Study in Asymptomatic HIV Infected Patients to Investigate Pharmacodynamics, Pharmacokinetics, Safety and Toleration of UK-453,061

Phase 2
Completed
Conditions
HIV-1
Interventions
Drug: UK-453,061
Registration Number
NCT00348673
Lead Sponsor
Pfizer
Brief Summary

A phase 2a study to investigate the effects of 7-day monotherapy of UK-453,061 on viral load response in asymptomatic human immunodeficiency virus (HIV) infected subjects, to assess the dose-response relationship, and to assess the pharmacokinetics (PK), safety and tolerability of UK-453,061 in asymptomatic HIV infected subjects.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
49
Inclusion Criteria
  • Asymptomatic HIV-1 infected male and patients aged 18-55 years inclusive.
  • Patients with virus not containing NNRTI resistant mutations as determined by the VircoGEN virtual phenotyping essay.
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Exclusion Criteria
  • Patients with a CD4 count less than 250 cells/mm3.
  • Patients whose HIV infection has been diagnosed less than 3 months prior to screening, or for whom there is evidence of recent seroconversion.
  • Patients with an HIV viral load less than 5000 copies/ml using RT-PCR(Roche Amplicor v1.5).
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Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Stage 1UK-453,061-
Stage 2UK-453,061-
Primary Outcome Measures
NameTimeMethod
Change From Baseline in Human Immunodeficiency Virus-1 (HIV-1) Viral Load at Day 8Baseline, Day 8

Change from baseline in log 10-transformed plasma viral load(Human Immunodeficiency Virus-1 Ribonucleic Acid\[HIV-1 RNA\]) levels(log10 copies/milliliter\[copies/mL\])reported.Viral load determined using reverse transcriptase-polymerase chain reaction(RT-PCR) assay with standard lower limit of detection(LLOD) 400 copies/mL.For samples with reading less than (\<)400 copies/mL,assay repeated using ultra sensitive method with LLOD of 50 copies/mL.Values below limit of quantification(LOQ) 50 copies/mL set to 50 copies/mL.Baseline was mean of three pre-dose values taken at screening,randomization,Day 1.

Secondary Outcome Measures
NameTimeMethod
Number of Participants With Time to Rebound of Human Immunodeficiency Virus (HIV) Viral LoadDay 8 up to Follow-up (Day 38 to 40 [31 to 33 days post-last dose])

Time to rebound of viral load was defined as time from the last dose (Day 8) to the time of the first occasion at which the viral load was greater than baseline value. Number of participants with rebound of viral load at specified number of days after last dose (day 8) was reported.

Trial Locations

Locations (1)

Pfizer Investigational Site

🇩🇪

Koeln, Germany

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