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ClinicalTrials.gov public records Last synced Oct 17, 2026, 8:23 PM EDT

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Showing 1–24 of 67 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: GS7977 Clear all
Completed Phase 2 Interventional Results available

Efficacy and Safety of Ledipasvir/Sofosbuvir Fixed-Dose Combination and Sofosbuvir + Ribavirin for Subjects With Chronic Hepatitis C Virus (HCV) and Inherited Bleeding Disorders

NCT02120300
View directory record Official record
Conditions
Chronic HCV Infection
Interventions
LDV/SOF, SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
13
States / cities
Sacramento, California • San Diego, California • San Francisco, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 6, 2016 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Sofosbuvir in Combination With Pegylated Interferon and Ribavirin and in Treatment-Naive Hepatitis C-infected Patients

NCT01188772
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Sofosbuvir, Placebo to match sofosbuvir, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
147 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
22
States / cities
Montgomery, Alabama • Anaheim, California • Coronado, California + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2014 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Ledipasvir/Sofosbuvir Fixed-Dose Combination With Ribavirin or GS-9669 in Subjects With Chronic Genotype 1 HCV Infection

NCT01984294
View directory record Official record
Conditions
Chronic HCV Infection
Interventions
LDV/SOF, RBV, GS-9669
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Efficacy of Sofosbuvir With Ribavirin Administered Pre-Transplant in Preventing Hepatitis C Virus (HCV) Recurrence Post-Transplant

NCT01559844
View directory record Official record
Conditions
Hepatitis C, Hepatocellular Carcinoma
Interventions
Sofosbuvir, Ribavirin
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
13
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2016 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Sofosbuvir and Ribavirin in Adults With Recurrent Chronic Hepatitis C Virus (HCV) Post Liver Transplant

NCT01687270
View directory record Official record
Conditions
Recurrent Chronic Hepatitis C Virus, Post Liver Transplant
Interventions
Sofosbuvir, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
8
States / cities
San Francisco, California • Indianapolis, Indiana • Kansas City, Kansas + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 19, 2014 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

A Study of TMC435 in Combination With PSI-7977 (GS7977) in Chronic Hepatitis C Genotype 1-Infected Prior Null Responders To Peginterferon/Ribavirin Therapy or HCV Treatment-Naive Patients

NCT01466790
View directory record Official record
Conditions
Hepatitis C
Interventions
TMC435, PSI-7977 (GS7977), Ribavirin
Drug
Lead sponsor
Janssen R&D Ireland
Industry
Eligibility
18 Years to 70 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
22
States / cities
Hoover, Alabama • Bakersfield, California • La Jolla, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2015 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Sofosbuvir + Ribavirin for 12 or 16 Weeks in Treatment Experienced Subjects With Chronic Genotype 2 or 3 HCV Infection (FUSION)

NCT01604850
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
SOF, RBV, Placebo to match SOF, Placebo to match RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
51
States / cities
Coronado, California • Los Angeles, California • San Diego, California + 41 more
Source: ClinicalTrials.gov public record
Updated May 28, 2014 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Ledipasvir/Sofosbuvir Fixed-Dose Combination and Vedroprevir With or Without Ribavirin in Treatment-Experienced Participants With Chronic Genotype 1 HCV Infection and Cirrhosis

NCT02226549
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
LDV/SOF, VDV, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Study of A Combination Pill With GS-7977 and GS-5885 for Hepatitis C in People With HIV

NCT01878799
View directory record Official record
Conditions
Hepatitis C, HIV
Interventions
GS-7977/GS- 5885 FDC
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 15, 2016 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Sofosbuvir/Velpatasvir/Voxilaprevir and Sofosbuvir/Velpatasvir in Adults With Chronic HCV Infection Who Have Not Previously Received Treatment With Direct-Acting Antiviral Therapy

NCT02607800
View directory record Official record
Conditions
Hepatitis C
Interventions
SOF/VEL/VOX, SOF/VEL
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
943 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
47
States / cities
Long Beach, California • Los Angeles, California • Palo Alto, California + 44 more
Source: ClinicalTrials.gov public record
Updated Mar 5, 2019 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Sofosbuvir/Velpatasvir Fixed-Dose Combination in Adults With Chronic HCV Infection

NCT02346721
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
SOF/VEL
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
25
States / cities
Long Beach, California • Los Angeles, California • Palo Alto, California + 18 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Sofosbuvir (GS-7977) in Combination With PEG and Ribavirin for 12 Weeks in Treatment Experienced Subjects With Chronic HCV Infection Genotype 2 or 3

NCT01808248
View directory record Official record
Conditions
Hepatitis C
Interventions
SOF, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2014 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed-Dose Combination (FDC) With and Without Ribavirin for the Treatment of HCV

NCT01701401
View directory record Official record
Conditions
Chronic Hepatitis C Virus
Interventions
LDV/SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
870 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
53
States / cities
Birmingham, Alabama • La Jolla, California • Long Beach, California + 50 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Ledipasvir/Sofosbuvir Fixed-Dose Combination + Ribavirin in Subjects With Chronic HCV With Advanced Liver Disease or Post-Liver Transplant

NCT01938430
View directory record Official record
Conditions
Chronic HCV Infection
Interventions
LDV/SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
339 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
30
States / cities
Phoenix, Arizona • San Diego, California • San Francisco, California + 25 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Sofosbuvir/Velpatasvir/Voxilaprevir Fixed-Dose Combination With or Without Ribavirin in Participants With Chronic Genotype 1 HCV Infection Previously Treated With a Direct Acting Antiviral Regimen

NCT02536313
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
SOF/VEL/VOX, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Oct 17, 2026, 8:23 PM EDT
Terminated No phase listed Observational

A Registry for Adolescent and Pediatric Participants Who Received a Gilead Hepatitis C Virus Direct Acting Antiviral (DAA) in Gilead-Sponsored Chronic Hepatitis C Infection Trials

NCT02510300
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
Sofosbuvir (SOF), Ledipasvir/Sofosbuvir (LDV/SOF), Sofosbuvir/Velpatasvir (SOF/VEL), Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX)
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
3 Years and older
Enrollment
461 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2023
U.S. locations
27
States / cities
Phoenix, Arizona • Los Angeles, California • San Francisco, California + 24 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2023 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Ledipasvir/Sofosbuvir Fixed-Dose Combination for 12 or 24 Weeks in Genotype 1 or 4 HCV Infected Adults With Sickle Cell Disease

NCT02301936
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
LDV/SOF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Lutherville, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Sofosbuvir Plus Velpatasvir With or Without Ribavirin in Treatment-experienced Subjects With Chronic HCV Infection

NCT01909804
View directory record Official record
Conditions
Hepatitis C
Interventions
SOF, VEL, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
323 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
40
States / cities
Long Beach, California • Los Angeles, California • Pasadena, California + 37 more
Source: ClinicalTrials.gov public record
Updated Nov 15, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed-Dose Combination ± Ribavirin for the Treatment of HCV (ION-3)

NCT01851330
View directory record Official record
Conditions
Chronic Hepatitis C Virus
Interventions
LDV/SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
647 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
52
States / cities
Birmingham, Alabama • La Jolla, California • Los Angeles, California + 49 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Study to Investigate the Safety and Efficacy of Sofosbuvir/Velpatasvir in Adolescents and Children With Chronic HCV Infection

NCT03022981
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
SOF/VEL
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
3 Years to 17 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
21
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2020 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Sofosbuvir Plus Ribavirin in Chronic Genotype 1, 2 and 3 Hepatitis C Virus (HCV) and Human Immunodeficiency Virus (HIV) Co-infected Adults

NCT01667731
View directory record Official record
Conditions
Hepatitis C, Human Immunodeficiency Virus
Interventions
SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
26
States / cities
Birmingham, Alabama • Coronado, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 21, 2014 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed Dose Combination +/- Ribavirin in Adolescents and Children With Chronic HCV-Infection

NCT02249182
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
LDV/SOF, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
3 Years to 17 Years
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
23
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2020 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 3 Interventional Results available

Efficacy, Safety, and Tolerability of Ledipasvir/Sofosbuvir (LDV/SOF) Treatment for HIV/HCV Co-infected Participants Who Switch to Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF) or Emtricitabine/Rilpivirine/Tenofovir Alafenamide (F/R/TAF) Prior to LDV/SOF HCV Treatment

NCT02707601
View directory record Official record
Conditions
HIV-1 Infection, HCV Infection
Interventions
E/C/F/TAF, F/R/TAF, LDV/SOF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
42
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 32 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Oct 17, 2026, 8:23 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Ledipasvir/Sofosbuvir Fixed Dose Combination Administered in Patients Infected With Chronic Genotype 1 or 4 HCV for Use in the Peri-Operative Liver Transplantation Setting

NCT02350569
View directory record Official record
Conditions
Hepatitis C Virus Infection
Interventions
LDV/SOF
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
6
States / cities
San Francisco, California • Chicago, Illinois • New Orleans, Louisiana + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Oct 17, 2026, 8:23 PM EDT