Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF

Brief Summary
This study will evaluate the efficacy of switching from emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) fixed dose combination (FDC) to emtricitabine/tenofovir alafenamide (F/TAF) FDC in HIV-1 positive participants who are virologically suppressed on regimens containing FTC/TDF.

This study will consist of a 96 week double-blind treatment period. After Week 96, all participants will continue on blinded study drug treatment and attend visits every 12 weeks until treatment assignments are unblinded. All participants will return for an unblinding visit and will be given the option to receive open-label F/TAF and attend visits every 12 weeks until F/TAF is commercially available, or the sponsor terminates the F/TAF clinical development program.
Brief Title
Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF
Completion Date
Completion Date Type
Actual
Conditions
HIV-1 Infection
Eligibility Criteria
Key Inclusion Criteria:

* Ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
* Currently receiving antiretroviral regimen containing FTC/TDF in combination with one third agent for ≥ 6 consecutive months prior to screening.
* Plasma HIV-1 RNA levels \< 50 copies/mL for at least 6 months preceding the screening visit (measured at least twice using the same assay) and not experienced two consecutive HIV-1 RNA above detectable levels after achieving a confirmed (two consecutive) HIV-1 RNA below detectable levels on the current regimen in the past year.
* Plasma HIV-1 RNA should be \< 50 copies/mL at the screening visit.
* Normal electrocardiogram (ECG)
* Estimated glomerular filtration rate (eGFR) ≥ 50 mL/min according to the Cockcroft-Gault formula for creatinine clearance
* Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 5 × the upper limit of the normal range (ULN)
* Total bilirubin ≤ 1.5 mg/dL, or normal direct bilirubin (individuals with documented Gilbert's syndrome or with Atazanavir-associated hyperbilirubinemia may have total bilirubin up to 5 x ULN)
* Adequate hematologic function
* Serum amylase ≤ 5 × ULN
* Females of childbearing potential must agree to utilize highly effective contraception methods or be non-heterosexually active, or practice abstinence from screening throughout the duration of the study treatment and for 30 days following the last dose of the study drug.
* Females who have stopped menstruating for ≥ 12 months but do not have documentation of ovarian hormonal failure must have a serum follicle stimulating hormone (FSH) level at screening within the post-menopausal range based on the Central Laboratory reference range.
* Females who utilize hormonal contraceptive as one of their birth control methods must have used the same method for at least three months prior to study dosing.
* Males must agree to utilize a highly effective method of contraception during heterosexual intercourse or be non-heterosexually active, or practice sexual abstinence from first dose throughout the study period and for 30 days following the last study drug dose.

Key Exclusion Criteria:

* A new AIDS-defining condition diagnosed within the 30 days prior to screening
* Hepatitis C virus (HCV) antibody positive and HCV RNA detectable
* Individuals experiencing decompensated cirrhosis (e.g., ascites, encephalopathy, etc.)
* Individuals receiving ongoing treatment with bisphosphonate to treat bone disease (eg, osteoporosis)
* Females who are breastfeeding
* Positive serum pregnancy test
* Have an implanted defibrillator or pacemaker
* Current alcohol or substance use judged by the investigator to potentially interfere with study compliance
* A history of malignancy within the past 5 years (prior to screening) or ongoing malignancy other than cutaneous Kaposi's sarcoma (KS), basal cell carcinoma, or resected, non-invasive cutaneous squamous carcinoma.
* Active, serious infections (other than HIV-1 infection) requiring parenteral antibiotic or antifungal therapy within 30 days prior to Day 1 Visit
* Individuals receiving ongoing therapy with any of the medications not to be used with FTC, TAF, TDF or other antiretroviral third agents.

Note: Other protocol defined Inclusion/Exclusion criteria may apply.
Inclusion Criteria
Inclusion Criteria:

* Ability to understand and sign a written informed consent form, which must be obtained prior to initiation of study procedures
* Currently receiving antiretroviral regimen containing FTC/TDF in combination with one third agent for ≥ 6 consecutive months prior to screening.
* Plasma HIV-1 RNA levels \< 50 copies/mL for at least 6 months preceding the screening visit (measured at least twice using the same assay) and not experienced two consecutive HIV-1 RNA above detectable levels after achieving a confirmed (two consecutive) HIV-1 RNA below detectable levels on the current regimen in the past year.
* Plasma HIV-1 RNA should be \< 50 copies/mL at the screening visit.
* Normal electrocardiogram (ECG)
* Estimated glomerular filtration rate (eGFR) ≥ 50 mL/min according to the Cockcroft-Gault formula for creatinine clearance
* Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 5 × the upper limit of the normal range (ULN)
* Total bilirubin ≤ 1.5 mg/dL, or normal direct bilirubin (individuals with documented Gilbert's syndrome or with Atazanavir-associated hyperbilirubinemia may have total bilirubin up to 5 x ULN)
* Adequate hematologic function
* Serum amylase ≤ 5 × ULN
* Females of childbearing potential must agree to utilize highly effective contraception methods or be non-heterosexually active, or practice abstinence from screening throughout the duration of the study treatment and for 30 days following the last dose of the study drug.
* Females who have stopped menstruating for ≥ 12 months but do not have documentation of ovarian hormonal failure must have a serum follicle stimulating hormone (FSH) level at screening within the post-menopausal range based on the Central Laboratory reference range.
* Females who utilize hormonal contraceptive as one of their birth control methods must have used the same method for at least three months prior to study dosing.
* Males must agree to utilize a highly effective method of contraception during heterosexual intercourse or be non-heterosexually active, or practice sexual abstinence from first dose throughout the study period and for 30 days following the last study drug dose.

Inclusion/
Gender
All
Gender Based
false
Keywords
HIV
HIV-1 Positive
Virologically-suppressed
Healthy Volunteers
No
Last Update Submit Date
Minimum Age
18 Years
NCT Id
NCT02121795
Org Class
Industry
Org Full Name
Gilead Sciences
Org Study Id
GS-US-311-1089
Overall Status
Completed
Phases
Phase 3
Primary Completion Date
Primary Completion Date Type
Actual
Official Title
A Phase 3, Randomized, Double-Blind, Switch Study to Evaluate F/TAF in HIV-1 Positive Subjects Who Are Virologically Suppressed on Regimens Containing FTC/TDF
Primary Outcomes
Outcome Description
The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Outcome Measure
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Week 48 as Defined by the FDA Snapshot Analysis
Outcome Time Frame
Week 48
Secondary Ids
Secondary Id
2013-005138-39
Secondary Outcomes
Outcome Description
Hip BMD was assessed by dual energy x-ray absorptiometry (DXA) scan.
Outcome Time Frame
Baseline; Week 48
Outcome Measure
Percentage Change From Baseline in Hip Bone Mineral Density (BMD) at Week 48
Outcome Description
Spine BMD was assessed by DXA scan.
Outcome Time Frame
Baseline; Week 48
Outcome Measure
Percentage Change From Baseline in Spine BMD at Week 48
Outcome Description
The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Outcome Time Frame
Week 48
Outcome Measure
Percentage of Participants With HIV-1 RNA < 20 Copies/mL at Week 48 as Defined by the FDA Snapshot Analysis
Outcome Time Frame
Baseline; Week 48
Outcome Measure
Change From Baseline in CD4+ Cell Count at Week 48
Outcome Description
The percentage of participants achieving HIV-1 RNA \< 20 copies/mL at Week 96 was analyzed using the snapshot algorithm, which defines a participant's virologic response using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Outcome Time Frame
Week 96
Outcome Measure
Percentage of Participants With HIV-1 RNA < 20 Copies/mL at Week 96 as Defined by the FDA Snapshot Analysis
Outcome Description
The percentage of participants achieving HIV-1 RNA \< 50 copies/mL at Week 96 was analyzed using the snapshot algorithm, which defines a participant's virologic response using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Outcome Time Frame
Week 96
Outcome Measure
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Weeks 96 as Defined by the FDA Snapshot Analysis
Outcome Description
Hip BMD was assessed by DXA scan.
Outcome Time Frame
Baseline; Week 96
Outcome Measure
Percentage Change From Baseline in Hip BMD at Week 96
Outcome Description
Spine BMD was assessed by DXA scan.
Outcome Time Frame
Baseline; Week 96
Outcome Measure
Percentage Change From Baseline in Spine BMD at Week 96
Outcome Time Frame
Baseline; Week 96
Outcome Measure
Change From Baseline in CD4+ Cell Count at Week 96
Start Date
Start Date Type
Actual
Status Verified Date
First Submit Date
First Submit QC Date
Std Ages
Adult
Older Adult
Maximum Age Number (converted to Years and rounded down)
999
Minimum Age Number (converted to Years and rounded down)
18
Investigators
Investigator Type
Principal Investigator
Investigator Name
Robert Grossberg
Investigator Email
rgrossbe@montefiore.org
Investigator Phone
718-920-5276
MeSH Terms
EMTRICITABINE, TENOFOVIR DISOPROXIL FUMARATE DRUG COMBINATION
EMTRICITABINE TENOFOVIR ALAFENAMIDE
TENOFOVIR
ORGANOPHOSPHONATES
ORGANOPHOSPHORUS COMPOUNDS
ORGANIC CHEMICALS
EMTRICITABINE
DEOXYCYTIDINE
CYTIDINE
PYRIMIDINE NUCLEOSIDES
PYRIMIDINES
HETEROCYCLIC COMPOUNDS, 1-RING
HETEROCYCLIC COMPOUNDS
ADENINE
PURINES
HETEROCYCLIC COMPOUNDS, 2-RING
HETEROCYCLIC COMPOUNDS, FUSED-RING
DEOXYRIBONUCLEOSIDES
NUCLEOSIDES
NUCLEIC ACIDS, NUCLEOTIDES, AND NUCLEOSIDES
DRUG COMBINATIONS
PHARMACEUTICAL PREPARATIONS