Skip to content

Safety and Effectiveness of Raltegravir Plus Darunavir/Ritonavir in Treatment-Naive HIV-Infected Adults

A Pilot Efficacy and Safety Trial of Raltegravir Plus Darunavir/Ritonavir for Treatment-Naive HIV-1-Infected Subjects

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00830804
Enrollment
113
Registered
2009-01-28
Start date
2009-04-30
Completion date
2010-09-30
Last updated
2018-11-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV-1 Infections

Keywords

Treatment Naive

Brief summary

The purpose of this study is to assess the effectiveness and safety of an antiretroviral therapy (ART) regimen consisting of raltegravir (RAL) and darunavir (DRV)/ritonavir (RTV) as first-line therapy in treatment-naïve participants.

Detailed description

Despite the remarkable strides made in the treatment of HIV-1-infected persons over the last decade, current first-line ART regimens are imperfect. The ideal combination, unlike some current first-line options, would have uncompromised efficacy in the presence of transmitted drug-resistant variants. The primary purpose of this study is to estimate the cumulative proportion of ART-naive participants experiencing virologic failure at or prior to week 24 after initiating raltegravir (RAL) plus darunavir/ritonavir (DRV/RTV). The study will last 52 weeks. All participants will follow the same treatment schedule and take RAL plus DRV/RTV orally daily for the duration of the trial. After entry, all participants will have scheduled visits at weeks 1, 4, 12, 24, 36, 48, and 52. Medical/medication history, blood and urine collection, and liver function tests will occur at screening. A targeted physical exam and concomitant medications history will occur at all study visits. Blood and urine collection and liver function tests will occur at most study visits. For females, a pregnancy test will occur at screening and study entry. RAL and DRV were provided by the study. RTV was not provided by the study.

Interventions

DRUGRaltegravir

400 mg tablet taken orally twice daily

800 mg Darunavir/100 mg Ritonavir tablet taken orally once daily

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorNIH
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Lead SponsorNETWORK

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* HIV-1-infected * Plasma HIV-1 RNA of at least 5,000 copies/mL within 90 days prior to study entry * HIV genotype (for reverse transcriptase and protease) performed at any time prior to study entry. More information on this criterion can be found in the protocol. * ARV drug-naive. More information on this criterion can be found in the protocol. * Negative result from a hepatitis B surface antigen test performed within 90 days prior to study entry * Agree to use one form of medically-accepted contraceptive throughout the study and for 60 days after stopping study treatment. More information on this criterion can be found in the protocol.

Exclusion criteria

* Serious illness requiring systemic treatment and/or hospitalization for at least 7 days prior to study. More information on this criterion can be found in the protocol. * Screening HIV genotype obtained any time prior to study entry with more than one DRV resistance-associated mutation \[RAM\] (V11I, V32I, L33F, I47V, I50V, I54L, I54M, T74P, I84V, and L89V) or L76V alone * Known major integrase inhibitor RAM(s), including N155H, Q148H/R/K, Y143C/R, and G140S * Severe renal insufficiency requiring hemodialysis or peritoneal dialysis * Treatment with immunomodulators within 30 days prior to study entry. More information on this criterion can be found in the protocol. * Current medications that are prohibited with any study medications. More information on this criterion can be found in the protocol. * Known allergy/sensitivity to study drugs or their formulations. A history of sulfa allergy is not an exclusion. * Active drug or alcohol use or dependence that, in the opinion of the investigator, would interfere with the study. * Certain abnormal laboratory results. More information on this criterion can be found in the protocol. * Pregnant or breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Participants With Virologic Failure After Initiating RAL Plus DRV/RTV at or Prior to Week 24From start of study treatment to week 24Virologic failure is defined as: at week 12, confirmed plasma HIV-1 RNA \>= 1000 copies/ml or confirmed rebound from the week 4 value by \>0.5 log10 copies/ml (for subjects with week 4 value \<= 50 copies/ml, confirmed rebound to \>50 copies/ml); at week 24 or later, confirmed value \> 50 copies/ml. Viral load confirmation was scheduled 7-35 days after initial virologic failure. The proportion was estimated using Kaplan-Meier method. An adaptation of Greenwood's variance estimate was used in constructing the confidence interval.

Secondary

MeasureTime frameDescription
Change in Plasma HIV-1 RNA From Baseline to Week 1Baseline and week 1Results report the week 1 change from baseline (week 1 - baseline) in HIV-1 RNA. Baseline HIV-1 RNA was computed as the mean of the log10 HIV-1 RNA values at pre-entry and study entry.
Proportion of Participants With Plasma HIV-1 RNA < 50 Copies/ml or <200 Copies/ml at Week 24From start of study treatment to week 24Results report the percentage of participants with plasma HIV-1 RNA \< 50 copies/ml or \<200 copies/ml at week 24.
Proportion of Participants With Plasma HIV-1 RNA <50 Copies/ml or <200 Copies/ml at Week 48From start of study treatment to week 48Results report the percentage of participants with plasma HIV-1 RNA \<50 copies/ml or \<200 copies/ml at week 48.
Proportion of Participants Who Experienced Signs/Symptoms or Laboratory Toxicities Grade 3 or Higher, or of Any Grade Which Led to a Permanent Change or Discontinuation of Study TreatmentFrom start of study treatment to week 52Signs, symptoms and laboratory values were graded according to the Division of AIDS Adverse Event Grading System. Results report the percentage of participants who had grade 3 or higher events, or events of any grade which led to a permanent change or discontinuation of study treatment, which occurred any time from start of treatment to end of treatment.
Number of Participants With Pretreatment Drug ResistanceAt screeningResults report the number of participants who had resistance to non-nucleoside reverse transciptase inhibitors (NNRTI), nucleoside reverse transciptase inhibitors (NRTI) and protease inbitors (PI) based on genotypic resistance testing done prior to participant's entry into the study. Participants are classified into one (and only one category) based on the maximum number of drug class resistance seen for the participant.
Number of Participants With Integrase Drug Resistance at Virologic FailureFrom 12 weeks after starting study treatment to week 52Results report the number of participants who had integrase resistance mutation(s) detected at the time of virologic failure.
Number of Participants With Protease Drug Resistance at Virologic FailureFrom 12 weeks after starting study treatment to week 52Results report the number of participants who had protease resistance mutation(s) detected at the time of virologic failure.
Proportion of Participants With Virologic Failure or Off Study Treatment Regimen or Death at or Prior to Week 24From start of study treatment to Week 24The proportion of participants with virologic failure (see primary outcome measure for definition) and/or premature treatment discontinuation/modification and/or death was estimated using Kaplan-Meier method. An adaptation of Greenwood's variance estimate was used in constructing the confidence interval.
Changes in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 24From start of study treatment through week 24Results report the week 24 change from week 0 (week 24 - week 0) fasting total cholesterol, high-density lipoprotein and triglyceride.
Change in Fasting Low-density Lipoprotein at Week 24From start of study treatment through week 24Results report the week 24 change from week 0 (week 24 - week 0) fasting low-density lipoprotein (LDL). For participants whose calculated fasting LDL and direct fasting LDL were both reported, only the calculated fasting LDL was used. Direct fasting LDL was reported when the participant had high fasting triglyceride.
Changes in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 48From start of study treatment through week 48Results report the week 48 change from week 0 (week 48 - week 0) fasting total cholesterol, high-density lipoprotein and triglyceride.
Change in Fasting Low-density Lipoprotein at Week 48From start of study treatment through week 48Results report the week 48 change from week 0 (week 48 - week 0) fasting low-density lipoprotein (LDL). For participants whose calculated fasting LDL and direct fasting LDL were both reported, only the calculated fasting LDL was used. Direct fasting LDL was reported when the participant had high fasting triglyceride.
Change in CD4 Count at Week 48From start of study treatment through week 48Results report the week 48 change from baseline (week 48 - baseline) in CD4 count. Baseline CD4 count was computed as the mean of CD4 count values at pre-entry and study entry.
Plasma Trough Concentration of RaltegravirFrom start of study treatment to week 52Plasma trough concentrations (ng/ml) of Raltegravir (RAL) below the detection limit (10 ng/ml) were replaced by half the corresponding lower limit of quantitation. Geometric mean of trough concentrations obtained within the prescribed trough time (within 9-15 hours after the last RAL dose) was computed for each participant. For participants who experienced virologic failure (see primary outcome measure definition), only those concentrations on or before virologic failure confirmation were used in the geometric mean computation.
Plasma Trough Concentration of DarunavirFrom start of study treatment to week 52Plasma trough concentrations (ng/ml) of Darunavir (DRV) below the detection limit (50 ng/ml) were replaced by half the corresponding lower limit of quantitation. Geometric mean of trough concentrations obtained within the prescribed trough time (within 20-28 hours after the last DRV dose) was computed for each participant. For participants who experienced virologic failure (see primary outcome measure definition), only those concentrations on or before virologic failure confirmation were used in the geometric mean computation.
Number of Participants With Perfect Overall Adherence by Self ReportFrom one week after starting study treatment to week 52At each study visit, adherence was measured in terms of the number of missed doses each participant had over a 4-day recall for each drug. Adherence for all study visit weeks were combined for an overall measure of adherence. Participants who had zero missed doses on all weeks in all drugs while on study were classified as having an overall perfect adherence.

Countries

United States

Participant flow

Recruitment details

Study participants were recruited from 22 U.S. sites from April 2009 to August 2009.

Pre-assignment details

Study participants were HIV-1-infected, antiretroviral(ARV)-naive men and women, 18 years and older with plasma HIV-1 RNA \>= 5000 copies/ml. One enrolled participant never started study treatment.

Participants by arm

ArmCount
RAL+DRV/RTV
Raltegravir (400 mg BID) plus Darunavir/Ritonavir (800 mg/100 mg QD) for 52 weeks
112
Total112

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyConsent withdrawn2
Overall StudyDeath1
Overall StudyLost to Follow-up4
Overall StudyUnable to get to clinic7
Overall StudyUnwilling to adhere to study requirement1

Baseline characteristics

CharacteristicRAL+DRV/RTV
Age, Continuous36 years
FULL_RANGE 11
Age, Customized
18-29
33 participants
Age, Customized
30-39
38 participants
Age, Customized
40-49
25 participants
Age, Customized
50-59
12 participants
Age, Customized
60-69
4 participants
Region of Enrollment
United States
112 participants
Sex: Female, Male
Female
14 Participants
Sex: Female, Male
Male
98 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
78 / 112
serious
Total, serious adverse events
13 / 112

Outcome results

Primary

Proportion of Participants With Virologic Failure After Initiating RAL Plus DRV/RTV at or Prior to Week 24

Virologic failure is defined as: at week 12, confirmed plasma HIV-1 RNA \>= 1000 copies/ml or confirmed rebound from the week 4 value by \>0.5 log10 copies/ml (for subjects with week 4 value \<= 50 copies/ml, confirmed rebound to \>50 copies/ml); at week 24 or later, confirmed value \> 50 copies/ml. Viral load confirmation was scheduled 7-35 days after initial virologic failure. The proportion was estimated using Kaplan-Meier method. An adaptation of Greenwood's variance estimate was used in constructing the confidence interval.

Time frame: From start of study treatment to week 24

Population: All participants who started study treatment were included. The intent-to-treat approach was used, ignoring whether a participant was on or off treatment at the time of HIV-1 RNA measurement and censoring follow-up if a participant was lost-to-follow-up without previously meeting the definition of virologic failure.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVProportion of Participants With Virologic Failure After Initiating RAL Plus DRV/RTV at or Prior to Week 240.16 Proportion of participants
Secondary

Change in CD4 Count at Week 48

Results report the week 48 change from baseline (week 48 - baseline) in CD4 count. Baseline CD4 count was computed as the mean of CD4 count values at pre-entry and study entry.

Time frame: From start of study treatment through week 48

Population: Only those participants who started study treatment and who have values at baseline and at week 48 were included in the analysis.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVChange in CD4 Count at Week 48200 cells/mm3
Secondary

Change in Fasting Low-density Lipoprotein at Week 24

Results report the week 24 change from week 0 (week 24 - week 0) fasting low-density lipoprotein (LDL). For participants whose calculated fasting LDL and direct fasting LDL were both reported, only the calculated fasting LDL was used. Direct fasting LDL was reported when the participant had high fasting triglyceride.

Time frame: From start of study treatment through week 24

Population: Only those participants who started study treatment and who had fasting lipid measurements at week 24 and week 0 were included in the analysis.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVChange in Fasting Low-density Lipoprotein at Week 2416.0 mg/dL
Secondary

Change in Fasting Low-density Lipoprotein at Week 48

Results report the week 48 change from week 0 (week 48 - week 0) fasting low-density lipoprotein (LDL). For participants whose calculated fasting LDL and direct fasting LDL were both reported, only the calculated fasting LDL was used. Direct fasting LDL was reported when the participant had high fasting triglyceride.

Time frame: From start of study treatment through week 48

Population: Only those participants who started study treatment and who had fasting lipid measurements at week 48 and week 0 were included in the analysis.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVChange in Fasting Low-density Lipoprotein at Week 4817 mg/dL
Secondary

Change in Plasma HIV-1 RNA From Baseline to Week 1

Results report the week 1 change from baseline (week 1 - baseline) in HIV-1 RNA. Baseline HIV-1 RNA was computed as the mean of the log10 HIV-1 RNA values at pre-entry and study entry.

Time frame: Baseline and week 1

Population: Analyis was based on an intent-to-treat approach, ignoring whether a participant was on or off study treatment at the time the sample for HIV-1 RNA was obtained.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVChange in Plasma HIV-1 RNA From Baseline to Week 1-1.67 log10 copies/ml
Secondary

Changes in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 24

Results report the week 24 change from week 0 (week 24 - week 0) fasting total cholesterol, high-density lipoprotein and triglyceride.

Time frame: From start of study treatment through week 24

Population: Only those participants who started study treatment and who had fasting lipid measurements at week 24 and week 0 were included in the analysis.

ArmMeasureGroupValue (MEDIAN)
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 24Fasting Total Cholesterol31.5 mg/dL
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 24Fasting High-density Lipoprotein6.5 mg/dL
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 24Fasting Triglyceride24.5 mg/dL
Secondary

Changes in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 48

Results report the week 48 change from week 0 (week 48 - week 0) fasting total cholesterol, high-density lipoprotein and triglyceride.

Time frame: From start of study treatment through week 48

Population: Only those participants who started study treatment and who had fasting lipid measurements at week 48 and week 0 were included in the analysis.

ArmMeasureGroupValue (MEDIAN)
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 48Fasting Total Cholesterol30 mg/dL
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 48Fasting High-density Lipoprotein9 mg/dL
RAL+DRV/RTVChanges in Fasting Total Cholesterol, High-density Lipoprotein and Triglyceride at Week 48Fasting Triglyceride23 mg/dL
Secondary

Number of Participants With Integrase Drug Resistance at Virologic Failure

Results report the number of participants who had integrase resistance mutation(s) detected at the time of virologic failure.

Time frame: From 12 weeks after starting study treatment to week 52

Population: Only those participants who had virologic failure (see primary outcome measure for definition) and who had successful integrase genotyping at failure were included in the analysis.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVNumber of Participants With Integrase Drug Resistance at Virologic Failure5 participants
Secondary

Number of Participants With Perfect Overall Adherence by Self Report

At each study visit, adherence was measured in terms of the number of missed doses each participant had over a 4-day recall for each drug. Adherence for all study visit weeks were combined for an overall measure of adherence. Participants who had zero missed doses on all weeks in all drugs while on study were classified as having an overall perfect adherence.

Time frame: From one week after starting study treatment to week 52

Population: All participants who started study treatment were included in the analysis.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVNumber of Participants With Perfect Overall Adherence by Self Report95 participants
Secondary

Number of Participants With Pretreatment Drug Resistance

Results report the number of participants who had resistance to non-nucleoside reverse transciptase inhibitors (NNRTI), nucleoside reverse transciptase inhibitors (NRTI) and protease inbitors (PI) based on genotypic resistance testing done prior to participant's entry into the study. Participants are classified into one (and only one category) based on the maximum number of drug class resistance seen for the participant.

Time frame: At screening

Population: All participants who started study treatment were included in the analysis.

ArmMeasureGroupValue (NUMBER)
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceWith NNRTI mutations only9 participants
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceWith Both NNRTI and NRTI mutations1 participants
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceWith PI mutations only2 participants
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceWith PI, NNRTI and NRTI mutations1 participants
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceWith NRTI mutations only8 participants
RAL+DRV/RTVNumber of Participants With Pretreatment Drug ResistanceNo Resistance Detected91 participants
Secondary

Number of Participants With Protease Drug Resistance at Virologic Failure

Results report the number of participants who had protease resistance mutation(s) detected at the time of virologic failure.

Time frame: From 12 weeks after starting study treatment to week 52

Population: Only those participants who had virologic failure (see primary outcome measure for definition) and who had successful protease genotyping at failure were included in the analysis.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVNumber of Participants With Protease Drug Resistance at Virologic Failure0 participants
Secondary

Plasma Trough Concentration of Darunavir

Plasma trough concentrations (ng/ml) of Darunavir (DRV) below the detection limit (50 ng/ml) were replaced by half the corresponding lower limit of quantitation. Geometric mean of trough concentrations obtained within the prescribed trough time (within 20-28 hours after the last DRV dose) was computed for each participant. For participants who experienced virologic failure (see primary outcome measure definition), only those concentrations on or before virologic failure confirmation were used in the geometric mean computation.

Time frame: From start of study treatment to week 52

Population: Participants who started study treatment and who have at least one DRV plasma trough concentration obtained within 20-28 hours after the last DRV dose were included in the analysis.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVPlasma Trough Concentration of Darunavir1218 ng/ml
Secondary

Plasma Trough Concentration of Raltegravir

Plasma trough concentrations (ng/ml) of Raltegravir (RAL) below the detection limit (10 ng/ml) were replaced by half the corresponding lower limit of quantitation. Geometric mean of trough concentrations obtained within the prescribed trough time (within 9-15 hours after the last RAL dose) was computed for each participant. For participants who experienced virologic failure (see primary outcome measure definition), only those concentrations on or before virologic failure confirmation were used in the geometric mean computation.

Time frame: From start of study treatment to week 52

Population: Participants who started study treatment and who have at least one RAL plasma trough concentration obtained within 9-15 hours after the last RAL dose were included in the analysis.

ArmMeasureValue (MEDIAN)
RAL+DRV/RTVPlasma Trough Concentration of Raltegravir117 ng/ml
Secondary

Proportion of Participants Who Experienced Signs/Symptoms or Laboratory Toxicities Grade 3 or Higher, or of Any Grade Which Led to a Permanent Change or Discontinuation of Study Treatment

Signs, symptoms and laboratory values were graded according to the Division of AIDS Adverse Event Grading System. Results report the percentage of participants who had grade 3 or higher events, or events of any grade which led to a permanent change or discontinuation of study treatment, which occurred any time from start of treatment to end of treatment.

Time frame: From start of study treatment to week 52

Population: All participants who started study treatment were included in the analysis.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVProportion of Participants Who Experienced Signs/Symptoms or Laboratory Toxicities Grade 3 or Higher, or of Any Grade Which Led to a Permanent Change or Discontinuation of Study Treatment0.20 proportion of participants
Secondary

Proportion of Participants With Plasma HIV-1 RNA < 50 Copies/ml or <200 Copies/ml at Week 24

Results report the percentage of participants with plasma HIV-1 RNA \< 50 copies/ml or \<200 copies/ml at week 24.

Time frame: From start of study treatment to week 24

Population: All participants who started study treatment were included. An intent-to-treat approach was used ignoring participants who were off-study or with missing HIV-1 RNA at week 24.

ArmMeasureGroupValue (NUMBER)
RAL+DRV/RTVProportion of Participants With Plasma HIV-1 RNA < 50 Copies/ml or <200 Copies/ml at Week 24With HIV-1 RNA < 50 copies/ml0.79 proportion of participants
RAL+DRV/RTVProportion of Participants With Plasma HIV-1 RNA < 50 Copies/ml or <200 Copies/ml at Week 24With HIV-1 RNA < 200 copies/ml0.93 proportion of participants
Secondary

Proportion of Participants With Plasma HIV-1 RNA <50 Copies/ml or <200 Copies/ml at Week 48

Results report the percentage of participants with plasma HIV-1 RNA \<50 copies/ml or \<200 copies/ml at week 48.

Time frame: From start of study treatment to week 48

Population: All participants who started study treatment were included. An intent-to-treat approach was used ignoring participants who were off study treatment or with missing HIV-1 RNA at week 48.

ArmMeasureGroupValue (NUMBER)
RAL+DRV/RTVProportion of Participants With Plasma HIV-1 RNA <50 Copies/ml or <200 Copies/ml at Week 48With HIV-1 RNA < 50 copies/ml0.71 proportion of participants
RAL+DRV/RTVProportion of Participants With Plasma HIV-1 RNA <50 Copies/ml or <200 Copies/ml at Week 48With HIV-1 RNA < 200 copies/ml0.86 proportion of participants
Secondary

Proportion of Participants With Virologic Failure or Off Study Treatment Regimen or Death at or Prior to Week 24

The proportion of participants with virologic failure (see primary outcome measure for definition) and/or premature treatment discontinuation/modification and/or death was estimated using Kaplan-Meier method. An adaptation of Greenwood's variance estimate was used in constructing the confidence interval.

Time frame: From start of study treatment to Week 24

Population: All participants who started study treatment were included in the analysis.

ArmMeasureValue (NUMBER)
RAL+DRV/RTVProportion of Participants With Virologic Failure or Off Study Treatment Regimen or Death at or Prior to Week 240.21 Proportion of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026