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

August 14, 2013 updated by: Pfizer

A Randomised, Double Blind, Placebo-controlled, Multicenter Study in Asymptomatic HIV Infected Patients to Investigate Pharmacodynamics, Pharmacokinetics, Safety and Toleration of UK-453,061

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
49

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
      • Frankfurt am Main, Germany, 60590
        • Pfizer Investigational Site
      • Hamburg, Germany, 20099
        • Pfizer Investigational Site
      • Koeln, Germany, 50937
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

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.

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).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Stage 1
Drug: UK-453,061
Placebo BID, Placebo QD, UK-453,061 10 mg BID, 30 mg BID, 100 mg BID or 500 mg QD for 7 days
Drug: UK-453,061
Placebo BID, Placebo QD, UK-453,061 100 mg QD, 500 mg BID or 750 mg QD for 7 days
Experimental: Stage 2
Drug: UK-453,061
Placebo BID, Placebo QD, UK-453,061 10 mg BID, 30 mg BID, 100 mg BID or 500 mg QD for 7 days
Drug: UK-453,061
Placebo BID, Placebo QD, UK-453,061 100 mg QD, 500 mg BID or 750 mg QD for 7 days

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change From Baseline in Human Immunodeficiency Virus-1 (HIV-1) Viral Load at Day 8
Time Frame: Baseline, 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.
Baseline, Day 8

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Participants With Time to Rebound of Human Immunodeficiency Virus (HIV) Viral Load
Time Frame: Day 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.
Day 8 up to Follow-up (Day 38 to 40 [31 to 33 days post-last dose])

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Area Under the Curve From Time Zero to End of Dosing Interval at Steady State (AUCtau,ss)
Time Frame: 0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8
AUCtau = Area under the plasma concentration versus time curve from time zero (pre-dose) to the end of the dosing interval (tau), the dosing interval was 12 hours for twice daily regimen and 24 hours for once daily regimen.
0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8
Maximum Observed Plasma Concentration at Steady State (Cmax,ss)
Time Frame: 0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8
0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8
Time to Reach Maximum Observed Plasma Concentration at Steady State (Tmax,ss)
Time Frame: 0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8
0 (pre-dose), 1, 2, 3, 4, 6, 12 hours post-dose; additional 24 hours post-dose for once daily regimen on Day 8

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pfizer

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
ViiV Healthcare

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2006

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 1, 2007

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2007

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 5, 2006

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 5, 2006

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 6, 2006

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 18, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2013

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A5271010

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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