The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/show/NCT02603107




Registration number
NCT02603107
Ethics application status
Date submitted
10/11/2015
Date registered
11/11/2015
Date last updated
3/03/2020

Titles & IDs
Public title
Safety and Efficacy of Switching From Regimens Consisting of Boosted Atazanavir or Darunavir Plus Either Emtricitabine/Tenofovir or Abacavir/Lamivudine to Bictegravir/Emtricitabine/Tenofovir Alafenamide in Virologically Suppressed HIV-1 Infected Adults
Scientific title
A Phase 3, Randomized, Open-Label Study to Evaluate the Safety and Efficacy of Switching From Regimens Consisting of Boosted Atazanavir or Darunavir Plus Either Emtricitabine/Tenofovir or Abacavir/Lamivudine to GS-9883/Emtricitabine/Tenofovir Alafenamide in Virologically Suppressed HIV-1 Infected Adults
Secondary ID [1] 0 0
2015-004011-20
Secondary ID [2] 0 0
GS-US-380-1878
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
HIV-1 Infection 0 0
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - RTV
Treatment: Drugs - ATV
Treatment: Drugs - DRV
Treatment: Drugs - COBI
Treatment: Drugs - ATV/co
Treatment: Drugs - DRV/co
Treatment: Drugs - FTC/TDF
Treatment: Drugs - ABC/3TC
Treatment: Drugs - B/F/TAF

Experimental: B/F/TAF - Randomized Phase: Participants will switch to B/F/TAF FDC and continue treatment for at least 48 weeks.
Extension Phase: After Week 48, participants in countries where B/F/TAF is not available may have the option to receive B/F/TAF for up to 96 additional weeks.

Experimental: Current antiretroviral regimen - Randomized Phase: Participants will remain on current antiretroviral regimen consisting of ritonavir boosted ATV (RTV+ATV), ritonavir boosted DRV (RTV+DRV), cobicistat boosted ATV (COBI+ATV or ATV/co), or cobicistat boosted DRV (COBI+DRV or DRV/co) plus either FTC/TDF or ABC/3TC for at least 48 weeks.
Extension Phase: After Week 48, participants in countries where B/F/TAF is not available may have the option to receive B/F/TAF for up to 96 additional weeks.


Treatment: Drugs: RTV
100 mg capsule coadministered orally with ATV or DRV once daily with food

Treatment: Drugs: ATV
300 mg capsule administered orally once daily with food

Treatment: Drugs: DRV
800 mg tablet administered orally once daily with food

Treatment: Drugs: COBI
150 mg tablet coadministered orally with ATV or DRV once daily with food

Treatment: Drugs: ATV/co
300/150 mg FDC tablet administered orally once daily with food

Treatment: Drugs: DRV/co
800/150 mg FDC tablet administered orally once daily with food

Treatment: Drugs: FTC/TDF
200/300 mg FDC tablet administered orally once daily without regard to food

Treatment: Drugs: ABC/3TC
600/300 mg tablet administered orally once daily with or without regard to food

Treatment: Drugs: B/F/TAF
50/200/25 mg FDC tablet administered orally once daily without regard to food

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Percentage of Participants With HIV-1 RNA = 50 Copies/mL at Week 48 as Determined by the FDA-Defined Snapshot Algorithm - The percentage of participants with HIV-1 RNA = 50 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response status using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Timepoint [1] 0 0
Week 48
Secondary outcome [1] 0 0
Percentage of Participants With HIV-1 RNA < 50 Copies/mL at Week 48 as Determined by the FDA-Defined Snapshot Algorithm - The percentage of participants with HIV-1 RNA < 50 copies/mL at Week 48 was analyzed using the snapshot algorithm, which defines a participant's virologic response status using only the viral load at the predefined time point within an allowed window of time, along with study drug discontinuation status.
Timepoint [1] 0 0
Week 48
Secondary outcome [2] 0 0
Change From Baseline in CD4 Cell Count at Week 48
Timepoint [2] 0 0
Baseline to Week 48

Eligibility
Key inclusion criteria
Key

- Currently receiving a once daily antiretroviral regimen consisting of ritonavir or
cobicistat boosted ATV or DRV plus either FTC/TDF or ABC/3TC for = 6 months preceding
the screening visit

- Adequate renal function:

- Estimated glomerular filtration rate = 50 mL/min (= 0.83 mL/sec) according to the
Cockcroft-Gault formula

- Life expectancy = 1 year

- Currently on a stable regimen for = 6 months preceding the screening visit with
documented plasma HIV-1 RNA < 50 copies/mL for = 6 months preceding the screening
visit (or undetectable HIV-1 RNA level according to the local assay being used if the
limit of detection is = 50 copies/mL). Prior changes in antiretroviral regimen are
only allowed due to tolerability issues or for regimen simplification. Unconfirmed
virologic elevations of = 50 copies/mL (transient detectable viremia, or "blip") prior
to screening are acceptable. (If the lower limit of detection of the local HIV-1 RNA
assay is < 50 copies/mL [e.g., < 20 copies/mL], the plasma HIV-1 RNA level cannot
exceed 50 copies/mL on two consecutive HIV-1 RNA tests)

- Have no documented or suspected resistance to FTC, tenofovir, ABC or 3TC, including
but not limited to the reverse transcriptase resistance mutations K65R and M184V/I

- No previous use of any approved or experimental integrase strand transfer inhibitor
(INSTI)

Key
Minimum age
18 Years
Maximum age
No limit
Gender
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
- An opportunistic illness indicative of stage 3 HIV diagnosed within the 30 days prior
to screening

- Individuals experiencing decompensated cirrhosis (eg, ascites, encephalopathy, or
variceal bleeding)

- Have been treated with immunosuppressant therapies or chemotherapeutic agents within 3
months of study screening, or expected to receive these agents or systemic steroids
during the study (eg, corticosteroids, immunoglobulins, and other immune- or cytokine
based therapies)

- Current alcohol or substance use judged by the Investigator to potentially interfere
with subject study compliance

- A history of or ongoing malignancy (including untreated carcinoma in-situ) other than
cutaneous Kaposi's sarcoma (KS), basal cell carcinoma, or resected, non-invasive
cutaneous squamous carcinoma. Individuals with biopsy-confirmed cutaneous KS are
eligible, but must not have received any systemic therapy for KS within 30 days of Day
1 and are not anticipated to require systemic therapy during the study

- Active, serious infections (other than HIV 1 infection) requiring parenteral
antibiotic or antifungal therapy within 30 days prior to Day 1

- Participation in any other clinical trial, including observational studies, without
prior approval from the sponsor is prohibited while participating in this trial

- Any other clinical condition or prior therapy that, in the opinion of the
Investigator, would make the individual unsuitable for the study or unable to comply
with the dosing requirements

- Any known allergies to the excipients of B/F/TAF FDC or ATV, RTV, DRV, COBI, FTC/TDF
or ABC/3TC

- Females who are pregnant (as confirmed by positive serum pregnancy test)

- Females who are breastfeeding

- Acute hepatitis in the 30 days prior to study entry

- Chronic hepatitis B infection in individuals not on a TDF containing regimen, as
determined by either:

- Positive hepatitis B virus (HBV) surface antigen and negative HBV surface
antibody, regardless of HBV core antibody status, at the screening visit

- Positive HBV core antibody and negative HBV surface antibody, regardless of HBV
surface antigen status, at the screening visit

- Active tuberculosis infection

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

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 3
Type of endpoint(s)
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
NSW,VIC
Recruitment hospital [1] 0 0
- Darlinghurst
Recruitment hospital [2] 0 0
- Sydney
Recruitment hospital [3] 0 0
- Fitzroy
Recruitment hospital [4] 0 0
- Melbourne
Recruitment hospital [5] 0 0
- Prahran
Recruitment postcode(s) [1] 0 0
2010 - Darlinghurst
Recruitment postcode(s) [2] 0 0
2010 - Sydney
Recruitment postcode(s) [3] 0 0
3068 - Fitzroy
Recruitment postcode(s) [4] 0 0
3004 - Melbourne
Recruitment postcode(s) [5] 0 0
3141 - Prahran
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Arizona
Country [2] 0 0
United States of America
State/province [2] 0 0
California
Country [3] 0 0
United States of America
State/province [3] 0 0
Colorado
Country [4] 0 0
United States of America
State/province [4] 0 0
District of Columbia
Country [5] 0 0
United States of America
State/province [5] 0 0
Florida
Country [6] 0 0
United States of America
State/province [6] 0 0
Georgia
Country [7] 0 0
United States of America
State/province [7] 0 0
Hawaii
Country [8] 0 0
United States of America
State/province [8] 0 0
Illinois
Country [9] 0 0
United States of America
State/province [9] 0 0
Kansas
Country [10] 0 0
United States of America
State/province [10] 0 0
Kentucky
Country [11] 0 0
United States of America
State/province [11] 0 0
Louisiana
Country [12] 0 0
United States of America
State/province [12] 0 0
Massachusetts
Country [13] 0 0
United States of America
State/province [13] 0 0
Michigan
Country [14] 0 0
United States of America
State/province [14] 0 0
Minnesota
Country [15] 0 0
United States of America
State/province [15] 0 0
Missouri
Country [16] 0 0
United States of America
State/province [16] 0 0
New York
Country [17] 0 0
United States of America
State/province [17] 0 0
North Carolina
Country [18] 0 0
United States of America
State/province [18] 0 0
Pennsylvania
Country [19] 0 0
United States of America
State/province [19] 0 0
South Carolina
Country [20] 0 0
United States of America
State/province [20] 0 0
Tennessee
Country [21] 0 0
United States of America
State/province [21] 0 0
Texas
Country [22] 0 0
United States of America
State/province [22] 0 0
Virginia
Country [23] 0 0
United States of America
State/province [23] 0 0
Washington
Country [24] 0 0
Belgium
State/province [24] 0 0
Brussels
Country [25] 0 0
Belgium
State/province [25] 0 0
Ghent
Country [26] 0 0
Canada
State/province [26] 0 0
British Columbia
Country [27] 0 0
Canada
State/province [27] 0 0
Ontario
Country [28] 0 0
Canada
State/province [28] 0 0
Quebec
Country [29] 0 0
Dominican Republic
State/province [29] 0 0
Santo Domingo
Country [30] 0 0
France
State/province [30] 0 0
Lyon
Country [31] 0 0
France
State/province [31] 0 0
Nantes
Country [32] 0 0
France
State/province [32] 0 0
Nice
Country [33] 0 0
France
State/province [33] 0 0
Paris
Country [34] 0 0
France
State/province [34] 0 0
Tourcoing
Country [35] 0 0
France
State/province [35] 0 0
Tours
Country [36] 0 0
Germany
State/province [36] 0 0
Nordrhein-Westfalen
Country [37] 0 0
Germany
State/province [37] 0 0
Berlin
Country [38] 0 0
Germany
State/province [38] 0 0
Bonn
Country [39] 0 0
Germany
State/province [39] 0 0
Essen
Country [40] 0 0
Germany
State/province [40] 0 0
Frankfurt
Country [41] 0 0
Germany
State/province [41] 0 0
Hamburg
Country [42] 0 0
Germany
State/province [42] 0 0
Köln
Country [43] 0 0
Germany
State/province [43] 0 0
Munchen
Country [44] 0 0
Germany
State/province [44] 0 0
München
Country [45] 0 0
Italy
State/province [45] 0 0
Milano
Country [46] 0 0
Italy
State/province [46] 0 0
Roma
Country [47] 0 0
Puerto Rico
State/province [47] 0 0
Ponce
Country [48] 0 0
Puerto Rico
State/province [48] 0 0
Rio Piedras
Country [49] 0 0
Puerto Rico
State/province [49] 0 0
San Juan
Country [50] 0 0
Spain
State/province [50] 0 0
Madrid
Country [51] 0 0
Spain
State/province [51] 0 0
Málaga
Country [52] 0 0
United Kingdom
State/province [52] 0 0
Birmingham
Country [53] 0 0
United Kingdom
State/province [53] 0 0
Brighton
Country [54] 0 0
United Kingdom
State/province [54] 0 0
Edinburgh
Country [55] 0 0
United Kingdom
State/province [55] 0 0
Liverpool
Country [56] 0 0
United Kingdom
State/province [56] 0 0
London
Country [57] 0 0
United Kingdom
State/province [57] 0 0
Manchester

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Name
Gilead Sciences
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The primary objective of this study is to evaluate the efficacy of switching to a fixed-dose
combination (FDC) of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) versus
continuing on a regimen consisting of boosted atazanavir (ATV) or darunavir (DRV) plus either
emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) or abacavir/lamivudine (ABC/3TC) in
HIV-1 infected adults who are virologically suppressed.
Trial website
https://clinicaltrials.gov/show/NCT02603107
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Gilead Study Director
Address 0 0
Gilead Sciences
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
Other publications