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GEMINI Study - A Study of Saquinavir/Ritonavir in Treatment-Naive Patients With HIV-1 Infection

A 48-week, Randomized, Open-label, 2-arm Study to Compare the Efficacy of Saquinavir/Ritonavir Twice Daily (BID) Plus Emtricitabine/Tenofovir Once Daily (QD) Versus Lopinavir/Ritonavir BID Plus Emtricitabine/Tenofovir QD in Treatment-naïve Human Immunodeficiency Virus Type 1 (HIV-1) Infected Patients (GEMINI Study)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00105079
Enrollment
337
Registered
2005-03-07
Start date
2005-04-30
Completion date
2008-07-31
Last updated
2011-11-02

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

Conditions

HIV Infections

Brief summary

This 2 arm study will evaluate the efficacy, safety and tolerability of saquinavir/ritonavir or lopinavir/ritonavir in combination with emtricitabine/tenofovir in patients with human immunodeficiency virus type 1 (HIV-1) infection who have received no prior HIV treatment. Patients will be randomized to receive either saquinavir/ritonavir 1000/100mg oral (po) twice daily (bid) + emtricitabine/tenofovir 200/300mg po once daily (qd), or lopinavir/ritonavir 400/100mg po bid + emtricitabine/tenofovir 200/300mg po qd. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.

Interventions

1000 milligram (mg) Oral (po) twice daily (bid)

DRUGLopinavir/ritonavir

Lopinavir/ritonavir 400/100 mg po bid

DRUGEmtricitabine/tenofovir disoproxil fumarate

Emtricitabine/tenofovir disoproxil fumarate 200/300 mg po qd

DRUGRitonavir

100 mg po bid

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* adult patients \>=18 years of age; * chronic HIV-1 infection; * treatment-naive; * HIV-1 RNA viral load \>=10,000copies/mL; * women of childbearing potential must have a negative pregnancy test, and must use reliable contraception for the duration of the study and for 90 days after the last dose of study medication.

Exclusion criteria

* females who are pregnant or breastfeeding; * active hepatitis B infection; * previous treatment with antiretroviral medication; * patients who have received an investigational drug within the last 4 weeks.

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mLWeek 48The primary objective of this study was to evaluate the efficacy of saquinavir/ritonavir BID plus emtricitabine/tenofovir QD versus lopinavir/ritonavir BID plus emtricitabine/tenofovir QD in treatment-naïve HIV-1 infected adults. Blood samples for HIV-1 RNA viral load measurement were collected at the Week 48 clinic visit. The number of participants with HIV-1 RNA results \<50 copies/mL is reported.

Secondary

MeasureTime frameDescription
Change From Baseline in HIV-1 RNA Viral LoadBaseline to Week 48Descriptive statistics for change from baseline in log10 transformed plasma HIV-1 RNA load (copies/mL) were presented by treatment arm. Logarithmic transformation (base 10) was applied to HIV-1 RNA viral load at baseline and at each study visit. Change from baseline in plasma HIV-1 RNA was derived as follows: Change from baseline = Log10 (HIV-1 RNA at week x) - Log10 (HIV-1 RNA at baseline)
Number of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mLWeek 48The secondary objectives of the study were to evaluate the safety, adherence, and tolerability of saquinavir/ritonavir BID plus emtricitabine/tenofovir QD versus lopinavir/ritonavir BID plus emtricitabine/tenofovir QD in treatment-naïve HIV-1 infected adults. Blood samples for HIV-1 RNA viral load measurement were collected at the Week 48 clinic visit. The number of participants with HIV-1 RNA results \<50 copies/mL and the number of participants with HIV-1 RNA results \<400 copies/mL are reported.
Change From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountBaseline to Week 48Summary statistics for change from baseline in CD4+ lymphocyte count were presented by treatment arm. Change from baseline in CD4+ lymphocyte count was derived as follows: Change from baseline = (CD4+ count at week x) - (CD4+ count at baseline).
Number of Participants Assessed for Adverse Events (AEs)reported up to 28 days after the last dose of study treatment. (Up to 52 weeks)Detailed information for Adverse Events and Serious Adverse Events will be represented in the SAE/AE section of PRS.
Number of Patients Who Discontinued Treatment Due to Abnormal Laboratory Parametersbaseline and all study visits (Up to Week 52)Routine clinical testing, including hematology and standard chemistry panel was performed at all study visits. Laboratory tests for a fasting lipid profile and fasting insulin determination were obtained at baseline, weeks 24 and 48, and the 4-week follow-up visit. The number of participants who discontinued treatment due to an abnormal laboratory result at any visit is reported.

Countries

Canada, France, Puerto Rico, Thailand, United States

Participant flow

Recruitment details

This study was conducted between 28 April 2005 and 24 August 2007 at 38 study centers in the United States, Canada, France and Thailand. Patients were randomized to receive saquinavir/ritonavir 1000/100 mg PO BID plus emtricitabine/tenofovir 200/300 mg PO QD or lopinavir/ritonavir 400/100 mg PO BID plus emtricitabine/tenofovir 200/300 mg PO QD .

Participants by arm

ArmCount
Saquinavir/Ritonavir
saquinavir mesylate 1000 mg twice daily (BID) + ritonavir 100 mg BID + emtricitabine/tenofovir disoproxil fumarate 200/300 mg orally every day for 48 weeks.
167
Lopinavir/Ritonavir
lopinavir/ritonavir 400/100 mg BID + emtricitabine/tenofovir disoproxil fumarate 200/300 mg orally every day for 48 weeks.
170
Total337

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event512
Overall StudyDeath31
Overall StudyLack of Efficacy93
Overall StudyLost to Follow-up1212
Overall StudyOther31
Overall StudyProtocol Violation10
Overall StudyRefused treatment64
Overall StudyViolation of selection criteria at entry02

Baseline characteristics

CharacteristicSaquinavir/RitonavirLopinavir/RitonavirTotal
Age Continuous38.3 years
STANDARD_DEVIATION 9.31
37.9 years
STANDARD_DEVIATION 9.6
38.1 years
STANDARD_DEVIATION 9.45
Sex: Female, Male
Female
31 Participants39 Participants70 Participants
Sex: Female, Male
Male
136 Participants131 Participants267 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
76 / 16392 / 168
serious
Total, serious adverse events
24 / 16319 / 168

Outcome results

Primary

Number of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mL

The primary objective of this study was to evaluate the efficacy of saquinavir/ritonavir BID plus emtricitabine/tenofovir QD versus lopinavir/ritonavir BID plus emtricitabine/tenofovir QD in treatment-naïve HIV-1 infected adults. Blood samples for HIV-1 RNA viral load measurement were collected at the Week 48 clinic visit. The number of participants with HIV-1 RNA results \<50 copies/mL is reported.

Time frame: Week 48

Population: intent-to-treat (ITT) Population

ArmMeasureGroupValue (NUMBER)
Saquinavir/RitonavirNumber of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mLPts. with HIV-1 RNA Viral Load <50 copies/mL - YES108 participants
Saquinavir/RitonavirNumber of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mLPts. with HIV-1 RNA Viral Load <50 copies/mL - NO59 participants
Lopinavir/RitonavirNumber of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mLPts. with HIV-1 RNA Viral Load <50 copies/mL - YES108 participants
Lopinavir/RitonavirNumber of Patients With Human Immunodeficiency Virus Type 1 (HIV-1) Ribonucleic Acid (RNA) Viral Load <50 Copies/mLPts. with HIV-1 RNA Viral Load <50 copies/mL - NO62 participants
Secondary

Change From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte Count

Summary statistics for change from baseline in CD4+ lymphocyte count were presented by treatment arm. Change from baseline in CD4+ lymphocyte count was derived as follows: Change from baseline = (CD4+ count at week x) - (CD4+ count at baseline).

Time frame: Baseline to Week 48

Population: ITT Population. (n) in each of the categories is the number of participants from the ITT population who had data available at that time point.

ArmMeasureGroupValue (MEDIAN)
Saquinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountBaseline (n=166,169)141.5 cells/mm^3
Saquinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountWeek 48 (n=122,131)319.0 cells/mm^3
Saquinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountChange from Baseline to Week 48 (n=121,130)178.0 cells/mm^3
Lopinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountBaseline (n=166,169)142.0 cells/mm^3
Lopinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountWeek 48 (n=122,131)348.0 cells/mm^3
Lopinavir/RitonavirChange From Baseline in Cluster Differentiation Antigen 4 Positive (CD4+) Lymphocyte CountChange from Baseline to Week 48 (n=121,130)204.0 cells/mm^3
Secondary

Change From Baseline in HIV-1 RNA Viral Load

Descriptive statistics for change from baseline in log10 transformed plasma HIV-1 RNA load (copies/mL) were presented by treatment arm. Logarithmic transformation (base 10) was applied to HIV-1 RNA viral load at baseline and at each study visit. Change from baseline in plasma HIV-1 RNA was derived as follows: Change from baseline = Log10 (HIV-1 RNA at week x) - Log10 (HIV-1 RNA at baseline)

Time frame: Baseline to Week 48

Population: ITT Population. (n) in each of the categories is the number of participants from the ITT population who had data available at that time point.

ArmMeasureGroupValue (MEAN)
Saquinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadBaseline5.20 copies/mL
Saquinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadWeek 48 (n=126,133)1.80 copies/mL
Saquinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadChange from Baseline to Week 48 (n=126,133)-3.39 copies/mL
Lopinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadBaseline5.17 copies/mL
Lopinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadWeek 48 (n=126,133)1.83 copies/mL
Lopinavir/RitonavirChange From Baseline in HIV-1 RNA Viral LoadChange from Baseline to Week 48 (n=126,133)-3.36 copies/mL
Secondary

Number of Participants Assessed for Adverse Events (AEs)

Detailed information for Adverse Events and Serious Adverse Events will be represented in the SAE/AE section of PRS.

Time frame: reported up to 28 days after the last dose of study treatment. (Up to 52 weeks)

Population: Safety population included all randomized patients who received at least one dose of study medication

ArmMeasureValue (NUMBER)
Saquinavir/RitonavirNumber of Participants Assessed for Adverse Events (AEs)163 participants
Lopinavir/RitonavirNumber of Participants Assessed for Adverse Events (AEs)168 participants
Secondary

Number of Patients Who Discontinued Treatment Due to Abnormal Laboratory Parameters

Routine clinical testing, including hematology and standard chemistry panel was performed at all study visits. Laboratory tests for a fasting lipid profile and fasting insulin determination were obtained at baseline, weeks 24 and 48, and the 4-week follow-up visit. The number of participants who discontinued treatment due to an abnormal laboratory result at any visit is reported.

Time frame: baseline and all study visits (Up to Week 52)

Population: Safety population included all randomized patients who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Saquinavir/RitonavirNumber of Patients Who Discontinued Treatment Due to Abnormal Laboratory Parameters0 participants
Lopinavir/RitonavirNumber of Patients Who Discontinued Treatment Due to Abnormal Laboratory Parameters0 participants
Secondary

Number of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mL

The secondary objectives of the study were to evaluate the safety, adherence, and tolerability of saquinavir/ritonavir BID plus emtricitabine/tenofovir QD versus lopinavir/ritonavir BID plus emtricitabine/tenofovir QD in treatment-naïve HIV-1 infected adults. Blood samples for HIV-1 RNA viral load measurement were collected at the Week 48 clinic visit. The number of participants with HIV-1 RNA results \<50 copies/mL and the number of participants with HIV-1 RNA results \<400 copies/mL are reported.

Time frame: Week 48

Population: Intent-to-Treat Population

ArmMeasureGroupValue (NUMBER)
Saquinavir/RitonavirNumber of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mLPatients with <50 Copies/mL108 participants
Saquinavir/RitonavirNumber of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mLPatients with <400 Copies/mL121 participants
Lopinavir/RitonavirNumber of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mLPatients with <50 Copies/mL108 participants
Lopinavir/RitonavirNumber of Patients With HIV-1 RNA Viral Load <50 and <400 Copies/mLPatients with <400 Copies/mL127 participants

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