Study to Evaluate Switching From Regimens Consisting of a Ritonavir-boosted Protease Inhibitor Plus Emtricitabine/Tenofovir Fixed-Dose Combination to the Elvitegravir/Cobicistat/Emtricitabine/Tenofovir DF Single-Tablet Regimen in Virologically Suppressed, HIV-1 Infected Patients
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ClinicalTrials.gov Identifier: NCT01475838 |
Recruitment Status :
Completed
First Posted : November 21, 2011
Results First Posted : January 26, 2015
Last Update Posted : June 8, 2016
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Sponsor:
Gilead Sciences
Information provided by (Responsible Party):
Gilead Sciences
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: None (Open Label); Primary Purpose: Treatment |
Conditions |
Acquired Immunodeficiency Syndrome HIV Infections |
Interventions |
Drug: PI Drug: RTV Drug: FTC/TDF Drug: Stribild |
Enrollment | 438 |
Participant Flow
Recruitment Details | Participants were enrolled at study sites in North America and Europe. The first participant was screened on 18 November 2011. The last study visit occurred on 09 December 2014 |
Pre-assignment Details | 632 participants were screened. |
Arm/Group Title | Stribild | PI+RTV+FTC/TDF |
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Participants switched from their baseline treatment regimen to Stribild® (elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate; E/C/F/TDF) (150/150/200/300 mg) single-tablet regimen (STR) once daily for up to 96 weeks in the randomized phase, and may have continued to receive Stribild in the extension phase. | Participants stayed on their baseline treatment regimen consisting of a protease inhibitor (PI) (atazanavir (ATV), darunavir (DRV), fosamprenavir (FPV), lopinavir (LPV), or saquinavir (SQV)) boosted with ritonavir (RTV) plus emtricitabine (FTC)/TDF (200/300 mg) (administered according to prescribing information) for up to 96 weeks in the randomized phase, and may have switched to Stribild in the extension phase. |
Period Title: Randomized Phase | ||
Started | 293 | 145 |
Completed | 263 | 109 |
Not Completed | 30 | 36 |
Reason Not Completed | ||
Randomized but Not Treated | 0 | 5 |
Adverse Event | 6 | 1 |
Pregnancy | 0 | 1 |
Investigators Discretion | 1 | 2 |
Withdrew Consent | 10 | 14 |
Lost to Follow-up | 3 | 4 |
Participant Noncompliance | 1 | 5 |
Protocol Violation | 9 | 4 |
Period Title: Extension Phase | ||
Started | 42 | 20 |
Completed | 41 | 20 |
Not Completed | 1 | 0 |
Reason Not Completed | ||
Participant Noncompliance | 1 | 0 |
Baseline Characteristics
Arm/Group Title | Stribild | PI+RTV+FTC/TDF | Total | |
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Participants switched from their baseline treatment regimen to Stribild (E/C/F/TDF) (150/150/200/300 mg) STR once daily for up to 96 weeks in the randomized phase, and may have continued to receive Stribild in the extension phase. | Participants stayed on their baseline treatment regimen consisting of a PI (ATV, DRV, FPV, LPV, or SQV) boosted with RTV plus FTC/TDF (200/300 mg) (administered according to prescribing information) for up to 96 weeks in the randomized phase, and may have switched to Stribild in the extension phase. | Total of all reporting groups | |
Overall Number of Baseline Participants | 293 | 140 | 433 | |
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Safety Analysis Set: participants were randomized and received at least one dose of study medication.
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Age, Continuous
Mean (Standard Deviation) Unit of measure: Years |
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Number Analyzed | 293 participants | 140 participants | 433 participants | |
41 (9.7) | 41 (8.9) | 41 (9.4) | ||
Age, Customized
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
< 40 years | 130 | 68 | 198 | |
≥ 40 to < 50 years | 109 | 49 | 158 | |
≥ 50 years | 54 | 23 | 77 | |
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 293 participants | 140 participants | 433 participants | |
Female |
43 14.7%
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19 13.6%
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62 14.3%
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Male |
250 85.3%
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121 86.4%
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371 85.7%
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Race/Ethnicity, Customized
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
American Indian or Alaska Native | 2 | 1 | 3 | |
Asian | 7 | 2 | 9 | |
Black or African Heritage | 43 | 20 | 63 | |
White | 234 | 113 | 347 | |
Other | 5 | 2 | 7 | |
Not Permitted | 2 | 2 | 4 | |
Race/Ethnicity, Customized
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
Hispanic or Latino | 42 | 17 | 59 | |
Non-Hispanic/Latino | 249 | 123 | 372 | |
Not Permitted | 2 | 0 | 2 | |
Region of Enrollment
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
Portugal | 12 | 7 | 19 | |
France | 39 | 15 | 54 | |
United States | 84 | 40 | 124 | |
Puerto Rico | 3 | 2 | 5 | |
Canada | 5 | 3 | 8 | |
Spain | 28 | 21 | 49 | |
Belgium | 6 | 2 | 8 | |
Austria | 11 | 4 | 15 | |
Germany | 36 | 21 | 57 | |
United Kingdom | 13 | 1 | 14 | |
Switzerland | 12 | 8 | 20 | |
Italy | 44 | 16 | 60 | |
HIV-1 RNA Category
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
< 50 copies/mL | 291 | 137 | 428 | |
50 to < 200 copies/mL | 2 | 2 | 4 | |
200 to < 400 copies/mL | 0 | 0 | 0 | |
≥ 400 copies/mL | 0 | 1 | 1 | |
CD4+ Cell Count
Mean (Standard Deviation) Unit of measure: cells/µL |
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Number Analyzed | 293 participants | 140 participants | 433 participants | |
604 (274.6) | 624 (269.9) | 610 (272.9) | ||
CD4+ Cell Count Category
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
≤ 50 cells/µL | 0 | 0 | 0 | |
51 to ≤ 200 cells/µL | 9 | 6 | 15 | |
201 to ≤ 350 cells/µL | 37 | 14 | 51 | |
351 to ≤ 500 cells/µL | 69 | 26 | 95 | |
> 500 cells/µL | 178 | 94 | 272 | |
HIV Disease Status
Measure Type: Number Unit of measure: Participants |
Number Analyzed | 293 participants | 140 participants | 433 participants |
Asymptomatic | 214 | 105 | 319 | |
Symptomatic HIV Infections | 38 | 17 | 55 | |
AIDS | 41 | 18 | 59 |
Outcome Measures
Adverse Events
Limitations and Caveats
There were no limitations affecting the analysis or results.
More Information
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts
the PI's rights to discuss or publish trial results after the trial is completed.
After conclusion of the study and without prior written approval from Gilead, investigators in this study may communicate, orally present, or publish in scientific journals or other media only after the following conditions have been met:
- The results of the study in their entirety have been publicly disclosed by or with the consent of Gilead in an abstract, manuscript, or presentation form; or
- The study has been completed at all study sites for at least 2 years
Results Point of Contact
Name/Title: | Clinical Trial Disclosures |
Organization: | Gilead Sciences, Inc. |
EMail: | ClinicalTrialDisclosures@gilead.com |
Publications of Results:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Gilead Sciences |
ClinicalTrials.gov Identifier: | NCT01475838 |
Other Study ID Numbers: |
GS-US-236-0115 2011-004483-30 ( EudraCT Number ) |
First Submitted: | November 17, 2011 |
First Posted: | November 21, 2011 |
Results First Submitted: | January 8, 2015 |
Results First Posted: | January 26, 2015 |
Last Update Posted: | June 8, 2016 |