A Study to Evaluate the Safety and Efficacy of Raltegravir (MK0518) in HIV-Infected Patients Failing Current Antiretroviral Therapies (0518-019)

February 14, 2017 updated by: Merck Sharp & Dohme LLC

A Multicenter, Double-Blind, Randomized, Placebo-Controlled Study to Evaluate the Safety and Antiretroviral Activity of MK-0518 in Combination With an Optimized Background Therapy (OBT), Versus Optimized Background Therapy Alone, in HIV-Infected Patients With Documented Resistance to at Least 1 Drug in Each of the 3 Classes of Licensed Oral Antiretroviral Therapies

This study will investigate the safety and efficacy of raltegravir as a therapy for Human Immunodeficiency Virus (HIV)-infected patients failing current therapy with 3-class antiviral resistance.

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.

Detailed Description

The primary double-blind study of raltegravir versus placebo was extended to 156 weeks and was followed by an open-label raltegravir phase in which continuing participants from both the raltegravir and placebo groups received open-label raltegravir for an additional 84 weeks for a maximum duration of up to 240 weeks. Participants who had viral failure after Week 16 may have received open-label raltegravir until Week 240.

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.
351

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 3

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

16 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patient must be HIV positive with HIV RNA values that are within ranges required by the study
  • Patient must have documented failure of certain antiretroviral therapy
  • Patient must be on the same antiretroviral therapy for at least the past two months

Exclusion Criteria:

  • Patient less than 16 years old
  • Additional study criteria will be discussed and identified by the study doctor

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: Parallel 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.
Placebo Comparator: 2
Placebo
Drug: Comparator: placebo
Placebo p.o. b.i.d. with optimized background therapy. Treatment period of 48 weeks.
Experimental: 1
raltegravir potassium
Drug: raltegravir potassium
Raltegravir 400 mg twice daily (b.i.d.) by mouth (p.o.) with optimized background therapy. Treatment period of 48 weeks.
Other Names:
  • ISENTRESS™

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
Percentage of Participants Achieving HIV RNA <400 Copies/mL at Week 16
Time Frame: 16 Weeks
Percentage of participants who achieved HIV RNA <400 copies/mL at Week 16
16 Weeks
Percentage of Participants Achieving HIV RNA <400 Copies/mL at Week 48
Time Frame: 48 Weeks
Percentage of participants who achieved HIV RNA <400 copies/mL at Week 48
48 Weeks
Double-Blind Extension - Week 156: Percentage of Participants Achieving HIV RNA <400 Copies/mL
Time Frame: 156 Weeks
Percentage of participants who achieved HIV RNA <400 copies/mL at Week 156
156 Weeks
Open-Label Extension - Week 240: Percentage of Participants Achieving HIV RNA <400 Copies/mL
Time Frame: 240 Weeks
Percentage of participants who achieved HIV RNA <400 Copies/mL at Week 240
240 Weeks

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
Percentage of Participants Achieving HIV RNA <50 Copies/mL at Week 16
Time Frame: 16 Weeks
Percentage of participants who achieved HIV RNA <50 copies/mL at Week 16
16 Weeks
Percentage of Participants Achieving HIV RNA <50 Copies/mL at Week 48
Time Frame: 48 Weeks
Percentage of participants who achieved HIV RNA <50 copies/mL at Week 48
48 Weeks
Change From Baseline in HIV RNA (log10 Copies/mL) at Week 48
Time Frame: Baseline and Week 48
Mean change from baseline at Week 48 in HIV RNA (log10 copies/mL)
Baseline and Week 48
Double-Blind Extension - Week 156: Change From Baseline in HIV RNA (log10 Copies/mL)
Time Frame: Baseline and Week 156
Mean change from baseline at Week 156 in HIV RNA (log10 copies/mL)
Baseline and Week 156
Open-Label Extension - Week 240: Change From Baseline in HIV RNA (log10 Copies/mL)
Time Frame: Baseline and Week 240
Mean change from baseline at Week 240 in HIV RNA (log10 copies/mL)
Baseline and Week 240
Double-Blind Extension - Week 156: Percentage of Participants Achieving HIV RNA <50 Copies/mL
Time Frame: 156 Weeks
Percentage of participants who achieved HIV RNA <50 copies/mL at Week 156
156 Weeks
Open-Label Extension - Week 240: Percentage of Participants Achieving HIV RNA <50 Copies/mL
Time Frame: 240 Weeks
Percentage of participants who achieved HIV RNA <50 copies/mL at Week 240
240 Weeks
Double-Blind Extension - Week 156: Percentage of Participants Without Loss of Virologic Response
Time Frame: 156 Weeks
For participants with confirmed HIV RNA levels <50 copies/mL on 2 consecutive visits, loss of virologic response is the occurrence of the first value >50 copies/mL or loss to follow-up; participants who never achieved HIV RNA <50 copies/mL on 2 consecutive visits are also considered as having loss of virologic response. Events are the numbers of participants with loss of virologic response versus the numbers of participants with no loss of virologic response (event-free).
156 Weeks
Change From Baseline in HIV RNA (Log 10 Copies/mL) at Week 16
Time Frame: Baseline and Week 16
Mean change from baseline at Week 16 in HIV RNA (log 10 copies/mL)
Baseline and Week 16
Change From Baseline in CD4 Cell Count (Cells/mm^3) at Week 16
Time Frame: Baseline and Week 16
Mean change from baseline at Week 16 in CD4 cell count (cells/mm^3)
Baseline and Week 16
Change From Baseline in CD4 Cell Count (Cells/mm^3) at Week 48
Time Frame: Baseline and Week 48
Mean change from baseline at Week 48 in CD4 cell count (cells/mm^3)
Baseline and Week 48
Double-Blind Extension - Week 156: Change From Baseline in CD4 Cell Count(Cells/mm^3)
Time Frame: Baseline and Week 156
Mean change from baseline at Week 156 in CD4 cell count (cells/mm^3)
Baseline and Week 156
Open-Label Extension - Week 240: Change From Baseline in CD4 Cell Count (Cells/mm^3)
Time Frame: Baseline and Week 240
Mean change from baseline at Week 240 in CD4 cell count (cells/mm^3)
Baseline and Week 240

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.
Merck Sharp & Dohme LLC

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.

General Publications

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.
October 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.
May 1, 2011

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).
February 15, 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.
February 15, 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.
February 17, 2006

Study Record Updates

Last Update Posted (Actual)

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.
March 21, 2017

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.
February 14, 2017

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.
February 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

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.
  • 0518-019
  • 2005_097

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final_Updated%20July_9_2014.pdf

http://engagezone.msd.com/ds_documentation.php

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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