MK0518 in the Treatment of HIV-Infected Patients Switched From a Protease Inhibitor Regimen - Full Text View

Sponsor:	Merck
Information provided by:	Merck
ClinicalTrials.gov Identifier:	NCT00443729

Purpose

The purpose of this study is to investigate the efficacy, safety, and tolerability of an investigational treatment for patients with Human Immunodeficiency Virus (HIV).

Condition	Intervention	Phase
HIV Infection	Drug: Comparator: raltegravir Drug: Comparator: placebo Drug: Comparator: lopinavir (+) ritonavir	Phase 3

Study Type:	Interventional
Study Design:	Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Investigator) Primary Purpose: Treatment
Official Title:	A Multicenter, Double-Blind, Randomized, Active-Controlled Study to Evaluate the Safety and Antiretroviral Activity of MK0518 Versus KALETRA in HIV-Infected Patients Switched From a Stable KALETRA-Based Regimen - Study B

Resource links provided by NLM:

Genetics Home Reference related topics: complement factor I deficiency

MedlinePlus related topics: Cholesterol HIV/AIDS

Drug Information available for: Ritonavir Lopinavir Raltegravir Raltegravir potassium

U.S. FDA Resources

Further study details as provided by Merck:

Primary Outcome Measures:

Number of Patients With Plasma Human Immunodeficiency Virus (HIV) RiboNucleic Acid (RNA) <50 Copies/mL at Week 24 [ Time Frame: 24 Weeks ] [ Designated as safety issue: No ]
Number of Patients With Clinical Adverse Experiences (CAEs) Through 24 Weeks [ Time Frame: 24 Week last patient last visit ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Fasting Serum Cholesterol at Week 12 [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Non-high-density Lipoprotein Cholesterol (Non-HDL-C) at Week 12 [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Fasting Serum Low-density Lipoprotein Cholesterol (LDL-C) at Week 12 [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Fasting Serum High-density Lipoprotein Cholesterol (HDL-C) at Week 12 [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: Yes ]
Median Percent Change From Baseline in Serum Triglyceride at Week 12 [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: Yes ]
Standard Deviation (Robust): calculated as interquartile range (IQR)/1.075, where IQR=3rd quartile-1st quartile.

Secondary Outcome Measures:

Mean Percent Change From Baseline in Fasting Serum Cholesterol at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Non-high-density Lipoprotein Cholesterol (Non-HDL-C) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Fasting Serum Low-density Lipoprotein Cholesterol (LDL-C) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: Yes ]
Mean Percent Change From Baseline in Fasting Serum High-density Lipoprotein Cholesterol (HDL-C) at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: Yes ]
Median Percent Change From Baseline in Serum Triglyceride at Week 24 [ Time Frame: Baseline and Week 24 ] [ Designated as safety issue: Yes ]
Standard Deviation (Robust): calculated as interquartile range (IQR)/1.075, where IQR=3rd quartile-1st quartile.

Enrollment:	355
Study Start Date:	May 2007
Study Completion Date:	May 2009
Primary Completion Date:	October 2008 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Experimental: 1 Raltegravir & Placebo	Drug: Comparator: raltegravir raltegravir 400 milligram (mg) by mouth (PO) twice daily (b.i.d) for up to 48 weeks of treatment Drug: Comparator: placebo lopinavir (+) ritonavir 400/100 mg by mouth (PO) twice daily (b.i.d.) Placebo for up to 48 weeks of treatment
Active Comparator: 2 Lopinavir (+) Ritonavir & Placebo	Drug: Comparator: lopinavir (+) ritonavir lopinavir (+) ritonavir 400/100 mg by mouth (PO) twice daily (b.i.d.) for up to 48 weeks of treatment Drug: Comparator: placebo raltegravir 400 mg by mouth (PO) twice daily (b.i.d.) Placebo for up to 48 weeks of treatment

Eligibility

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

Criteria

Inclusion Criteria:

Patient is at least 18 years of age
Patient is human immunodeficiency virus (HIV) positive
Patient has documented Human Immunodeficiency Virus (HIV) RiboNucleic Acid (RNA) <50 copies/milliliter (mL) for at least 3 months while on a KALETRA based regimen
Patient has been on a KALETRA based regimen for at least 3 months without a change in background antiretroviral therapy
Patient has no documentation of HIV RNA >50 copies/mL for at least 3 months while on the KALETRA based regimen

Exclusion Criteria:

Patient is or plans to become pregnant, or is nursing a child
Patient plans to donate eggs or impregnate/donate sperm
Patient is receiving Stavudine (d4T) as a component of the background antiretroviral therapy
Patient is currently receiving a second protease inhibitor in addition to KALETRA
Patient is currently receiving, or has received in the past twelve weeks, treatment for the management of elevated lipids
Patient has used another experimental HIV-integrase inhibitor
Patient has a current (active) diagnosis of acute hepatitis due to any cause

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00443729

Sponsors and Collaborators

Merck

Investigators

Study Director:

Medical Monitor

Merck

More Information

No publications provided by Merck

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Eron JJ, Young B, Cooper DA, Youle M, Dejesus E, Andrade-Villanueva J, Workman C, Zajdenverg R, Fätkenheuer G, Berger DS, Kumar PN, Rodgers AJ, Shaughnessy MA, Walker ML, Barnard RJ, Miller MD, Dinubile MJ, Nguyen BY, Leavitt R, Xu X, Sklar P; SWITCHMRK 1 and 2 investigators. Switch to a raltegravir-based regimen versus continuation of a lopinavir-ritonavir-based regimen in stable HIV-infected patients with suppressed viraemia (SWITCHMRK 1 and 2): two multicentre, double-blind, randomised controlled trials. Lancet. 2010 Jan 30;375(9712):396-407. Epub 2010 Jan 12.

Responsible Party:	Executive Vice President, Clinical and Quantitative Sciences, Merck Sharp & Dohme Corp
ClinicalTrials.gov Identifier:	NCT00443729 History of Changes
Other Study ID Numbers:	2007_508, MK0518-033
Study First Received:	March 2, 2007
Results First Received:	October 12, 2009
Last Updated:	April 20, 2010
Health Authority:	United States: Food and Drug Administration

Keywords provided by Merck:

treatment experienced

Additional relevant MeSH terms:

HIV Infections
Acquired Immunodeficiency Syndrome
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Slow Virus Diseases
Protease Inhibitors

Ritonavir
Lopinavir
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
HIV Protease Inhibitors
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Therapeutic Uses

ClinicalTrials.gov processed this record on May 24, 2012