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Hepatitis CPhase 1/2NCT01565889

Part A: Drug Interaction Study of Sofosbuvir and Antiretroviral Therapy (ART) Combinations in HIV and Hepatitis C Virus (HCV) Co-infected Patients. Part B: Efficacy and Safety of Sofosbuvir for 12 Weeks in HIV/HCV Co-infected Patients.

A Phase 1/2 study testing SOF, EFV/FTC/TDF and EFV in people with Hepatitis C and HIV, run by Gilead Sciences at 1 site in Puerto Rico.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study consists of 2 parts, Part A and Part B. Part A, the Phase 1 drug interaction/early viral kinetic study, will evaluate the effect of selected antiretroviral therapies on the safety, viral kinetics, and pharmacokinetics of sofosbuvir (GS-7977; PSI-7977) and its metabolites in participants with HIV and… Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Hepatitis C, HIV
What is being tested?
SOF, EFV/FTC/TDF and EFV
Could I receive a placebo?
No, everyone receives an active treatment
How many people
52 participants
Where
1 sitePuerto Rico
Study dates
Mar 2012to Nov 2013
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Healthy according to medical history and physical examination with exception of HCV and HIV diagnoses
  • Confirmation of Chronic HCV infection
  • Confirmation of Chronic HIV-1 infection
  • On a stable protocol approved HIV antiretroviral (ARV) regimen with undetectable HIV-RNA
  • Agree to use two forms of highly effective contraception for the duration of the study and 6 months after the last dose of study medication
  • Subjects must be naive to treatment for chronic HCV infection

Who cannot join

  • Known or suspected cirrhosis
  • History of any other clinically significant chronic liver disease
  • A history consistent with decompensated liver disease.
  • Use of any prohibited medications as defined by the protocol
  • Pregnant or nursing female or male with pregnant female partner
  • Contraindication to PEG or RBV therapy (for Part B)
  • Clinically relevant drug or alcohol abuse

Trial locations and contacts

1 site in 1 country.

Puerto Rico1 site
  • Fundacion de Investigacion de Diego

    San Juan, 00927

Other trials in Puerto Rico

About this study

Official title: Part A: Drug Interaction Study Between GS-7977 and Antiretroviral Therapy (ARV) Combinations of Efavirenz, Tenofovir and Emtricitabine; Efavirenz, Zidovudine and Lamivudine; Atazanavir/Ritonavir, Tenofovir and Emtricitabine; Darunavir/Ritonavir, Tenofovir and Emtricitabine; Raltegravir, Tenofovir and Emtricitabine in Human Immunodeficiency Virus and Hepatitis C Virus (HIV/HCV) Co-infected Patients. Part B: A Phase 2, Open-Label Study to Investigate the Efficacy and Safety of GS-7977 With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naïve HIV/HCV Co-infected Patients.

This study consists of 2 parts, Part A and Part B. Part A, the Phase 1 drug interaction/early viral kinetic study, will evaluate the effect of selected antiretroviral therapies on the safety, viral kinetics, and pharmacokinetics of sofosbuvir (GS-7977; PSI-7977) and its metabolites in participants with HIV and hepatitis C virus (HCV) coinfection. Part B, the Phase 2 treatment study, will investigate the efficacy and safety of sofosbuvir, pegylated interferon alpha (PEG) and ribavirin (RBV) in participants with HIV/HCV coinfection.

Conditions
Hepatitis C, HIV
Being tested
SOF, EFV/FTC/TDF, EFV, ZDV/3TC, ATV
Medical subject headings
Hepatitis C

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SOFDrug

    Also called Sovaldi®, GS-7977, PSI-7977

    Sofosbuvir (SOF) 400 mg (1 × 400 mg tablet or 2 × 200 mg tablets) administered orally once daily

  • EFV/FTC/TDFDrug

    Also called Atripla®

    Efavirenz (EFV) 600 mg/emtricitabine (FTC) 200 mg/tenofovir disoproxil fumarate (TDF) 300 mg fixed-dose combination (FDC) tablet administered orally once daily

  • EFVDrug

    Also called Sustiva®

    Efavirenz (EFV) 600 mg tablet administered orally once daily

  • ZDV/3TCDrug

    Also called Combivir®

    Zidovudine (ZDV) 300 mg/lamivudine (3TC) 150 mg FDC tablet administered orally twice daily

  • ATVDrug

    Atazanavir (ATV) 400 mg tablet administered orally once daily

  • RitonavirDrug

    Ritonavir (RTV) 100 mg tablet administered orally once daily

  • FTC/TDFDrug

    Also called Truvada®

    FTC/TDF (200/300 mg) FDC tablet administered orally once daily

  • DRVDrug

    Darunavir (DRV) 800 mg (2 × 400 mg tablets) administered orally once daily

  • RALDrug

    Raltegravir (RAL) 400 mg administered administered orally twice daily

  • PEGDrug

    Also called Pegasys®

    Pegylated interferon alfa (PEG) 180 μg administered once weekly by subcutaneous injection

  • RBVDrug

    Also called Ribasphere®

    Ribavirin (RBV) tablets administered orally in a divided daily dose according to package insert weight-based dosing recommendations (< 75kg = 1000 mg and ≥ 75 kg = 1200 mg)

Study groups in NCT01565889
Study groupRoleWhat they receive
Part A: SOF+EFV/FTC/TDF (Cohort 1)ExperimentalParticipants with a prestudy regimen of EFV/FTC/TDF will receive SOF+EFV/FTC/TDF FDC for 7 days, followed by EFV/FTC/TDF FDC (or EFV+FTC/TDF) for 7 days, coadministered once daily in the evening under fasting conditions.
Receives: Drug: SOF; Drug: EFV/FTC/TDF
Part A: SOF+EFV+ZDV/3TC (Cohort 2)ExperimentalParticipants with a prestudy regimen of EFV+ZDV/3TC will receive SOF+EFV+ZDV/3TC for 7 days followed by EFV+ZDV/3TC for 7 days. Sofosbuvir and EFV will be administered once daily in the evening under fasting conditions; ZDV/3TC will be administered twice daily, in the morning without regard to food and in the evening on an empty stomach.
Receives: Drug: SOF; Drug: EFV; Drug: ZDV/3TC
Part A: SOF+RTV+ATV+FTC/TDF (Cohort 3)ExperimentalParticipants with a prestudy regimen of RTV+ATV+FTC/TDF will receive SOF+RTV+ATV+FTC/TDF for 7 days followed by RTV+ATV+FTC/TDF for 7 days coadministered once daily in the morning with food.
Receives: Drug: SOF; Drug: ATV; Drug: Ritonavir; Drug: FTC/TDF
Part A: SOF+RTV+DRV+FTC/TDF (Cohort 4)ExperimentalParticipants with a prestudy regimen of RTV+DRV+FTC/TDF will receive SOF+RTV+DRV+FTC/TDF for 7 days followed by RTV+DRV+FTC/TDF for 7 days coadministered once daily in the morning with food.
Receives: Drug: SOF; Drug: Ritonavir; Drug: FTC/TDF; Drug: DRV
Part A: SOF+RAL+FTC/TDF (Cohort 5)ExperimentalParticipants with a prestudy regimen of RAL+FTC/TDF will receive SOF+RAL+FTC/TDF for 7 days followed by RAL+FTC/TDF for 7 days. Sofosbuvir and FTC/TDF will be administered once daily in the morning with food; RAL will be administered twice daily, in the morning with food and in the evening without regard to food.
Receives: Drug: SOF; Drug: FTC/TDF; Drug: RAL
Part B: SOF+PEG+RBVExperimentalParticipants will receive SOF+PEG+RBV for 12 weeks.
Receives: Drug: SOF; Drug: PEG; Drug: RBV

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Part A: Plasma Pharmacokinetics of SOF, EFV, Tenofovir (TFV), and FTC: AUCtau at Day 7

    AUCtau: concentration of drug over time (area under the plasma concentration versus time curve over the dosing interval).

    Data for this outcome measure were collected for participants in Part A only.

    Measured: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose

  2. Part A: Plasma Pharmacokinetics of SOF, EFV, TFV, and FTC: Cmax at Day 7

    Cmax: maximum observed concentration of drug in plasma.

    Data for this outcome measure were collected for participants in Part A only.

    Measured: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose

  3. Part B: Percentage of Participants With Sustained Virologic Response (SVR) at 12 Weeks After Discontinuation of Therapy (SVR12)

    SVR12 was defined as HCV RNA < the lower limit of quantitation (LLOQ; ie, 25 IU/mL) at 12 weeks after stopping study treatment.

    Data for this outcome measure were collected for participants in Part B only.

    Measured: Posttreatment Week 12

  4. Incidence of Adverse Events Leading to Permanent Discontinuation of Study Drug(s)

    The percentage of participants discontinuing any study drug due to an adverse event was summarized.

    Measured: Up to 12 weeks

Secondary outcomes (2)
  1. Part B: Percentage of Participants With Sustained Virologic Response at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)

    SVR4 and SVR24 was defined as HCV RNA < LLOQ at 4 and 24 weeks following the last dose of study drug, respectively.

    Data for this outcome measure were collected for participants in Part B only.

    Measured: Posttreatment Weeks 4 and 24

  2. Part B: Percentage of Participants Experiencing Viral Breakthrough or Viral Relapse

    Viral breakthrough was defined as having confirmed detectable HCV RNA levels (HCV RNA > LLOQ) on treatment after having previously had undetectable HCV RNA levels (HCV RNA < LLOQ) while on treatment.

    Viral relapse was defined as having achieved undetectable HCV RNA levels (HCV RNA < LLOQ) at end of treatment, but did not achieve an SVR.

    Data for this outcome measure were collected for participants in Part B only.

    Measured: Posttreatment Weeks 4 and 24

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Mar 2012 (estimated)
  2. Study startMar 2012
  3. Primary completionAug 2013
  4. Study completionNov 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01565889
Sponsor's protocol ID
P7977-1910
Status last verified
Sep 2014
First submitted
27 Mar 2012
Last updated
1 Oct 2014
Data monitoring committee
No

Publications

  • Rodriguez-Torres M, Gaggar A, Shen G, Kirby B, Svarovskaia E, Brainard D, Symonds WT, McHutchison JG, Gonzalez M, Rodriguez-Orengo J. Sofosbuvir for chronic hepatitis C virus infection genotype 1-4 in patients coinfected with HIV. J Acquir Immune Defic Syndr. 2015 Apr 15;68(5):543-9. doi: 10.1097/QAI.0000000000000516.

    PubMed 25622055

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing SOF, EFV/FTC/TDF and EFV in people with Hepatitis C and HIV, run by Gilead Sciences at 1 site in Puerto Rico.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Oct 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Puerto Rico. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 Oct 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part A: Plasma Pharmacokinetics of SOF, EFV, Tenofovir (TFV), and FTC: AUCtau at Day 7 (time frame: Pre-dose and 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01565889, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Oct 2014.

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