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A Study to Assess Resistance and Durability of Response to ABT-493 and/or ABT-530

A Follow-up Study to Assess Resistance and Durability of Response to AbbVie Direct-Acting Antiviral Agent (DAA) Therapy (ABT-493 and/or ABT-530) in Subjects Who Participated in Phase 2 or 3 Clinical Studies for the Treatment of Chronic Hepatitis C Virus (HCV) Infection

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02441283
Enrollment
384
Registered
2015-05-12
Start date
2015-06-22
Completion date
2019-10-15
Last updated
2020-09-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatitis C

Keywords

Chronic hepatitis C, Hepatitis C virus, Sustained virologic response, Hepatitis C, Direct Acting Antiviral

Brief summary

This was a long-term follow-up study to evaluate the durability of sustained virologic response (SVR), persistence of direct-acting antiviral agent (DAA) resistance, and clinical outcomes for participants who received glecaprevir (ABT-493) and/or pibrentasvir (ABT-530) in prior AbbVie Phase 2 or 3 clinical studies for the treatment of chronic hepatitis C virus (HCV) infection.

Detailed description

This was a Phase 2/3, multicenter study offered to participants who received at least one dose of an ABT-493- and/or ABT-530-containing regimen at any dose level in an eligible prior AbbVie Phase 2 or 3 study for the treatment of chronic HCV and elected to enroll in this study. The participant must have completed the follow-up period of the prior eligible AbbVie study. Participants were followed for a total of approximately 3 years after their last dose of DAA in the previous HCV clinical study. The 3 years were inclusive of any post-treatment period in the prior study, as well as any gaps between the end of the prior study and enrollment in this study.

Interventions

ABT-530 was not administered in this study. This study was a follow-up for participants who received the drug in prior studies.

ABT-493 was not administered in this study. This study was a follow-up for participants who received the drug in prior studies.

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Participant is male or female 18 years of age or older 2. Participant has received at least one dose of an ABT-493- and/or ABT- 530 containing regimen in a prior AbbVie hepatitis C virus (HCV) Phase 2 or 3 study 3. The interval between the last dose of the AbbVie direct-acting antiviral agent (DAA) therapy from the previous clinical study and enrollment in Study M13-576 must be no longer than 2 years for subjects who have not been retreated. Participants who have been treated with a commercially available anti-HCV treatment may be enrolled greater than 2 years after the last dose of the AbbVie DAA therapy from the previous clinical study. 4. Participant must voluntarily sign and date the informed consent form approved by an Independent Review Board or Ethics Committee prior to the initiation of any study-specific procedures. 5. Participant completed the post-treatment period of an eligible prior study.

Exclusion criteria

1. The investigator considers the participant unsuitable for the study for any reasons (e.g., failure to comply with study procedures in the prior AbbVie clinical study). 2. Receipt of any investigational HCV antiviral treatment after receiving ABT-493 and/or ABT-530 in the prior study. 3. Participants who experienced non-virologic treatment failure due to premature discontinuation of study drug in prior study of ABT-493/ABT-530. 4. Participation in AbbVie's Study M15-942 protocol for re-treatment for virologic failure in the prior Phase 2 or 3 study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Who Maintained a Sustained Virologic Response (SVR) Out of Those Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing RegimenFrom the end of treatment in the previous study up to 3 years post-treatmentMaintaining a sustained virologic response (SVR) is defined as having Hepatitis C virus ribonucleic acid (HCV RNA) value consistently below the lower limit of quantification (\< LLOQ) from the end of treatment in the previous study throughout Study M13-576 (this study).
Percentage of Participants Who Relapsed or Had a New Hepatitis C Virus (HCV) Infection at Any Time up to the Last Follow-up in This Study Among Participants Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing RegimenFrom the end of treatment in the previous study up to 3 years post-treatmentRelapse was defined as confirmed Hepatitis C virus ribonucleic acid (HCV RNA) greater than or equal to the lower limit of quantification (≥ LLOQ) between end of treatment and up to and including the last HCV RNA measurement collected in this study for a participant with HCV RNA \< LLOQ at Final Treatment Visit who completed treatment, excluding reinfection. HCV reinfection was defined as confirmed HCV RNA ≥ LLOQ after the end of treatment in a participant who had HCV RNA \< LLOQ at Final Treatment Visit, along with the post-treatment detection of a different HCV genotype, subtype, or clade compared with baseline, as determined by phylogenetic analysis of the NS3 or NS5A, and/or NS5B gene sequences.
Number of Participants With Persistence of Resistance-Associated Amino Acid Variants Among Those Experiencing Virologic FailureFrom Day 1 to Month 12Plasma samples for HCV resistance testing were collected at study visits. The variants in nonstructural viral protein 3 (NS3) and nonstructural viral protein 5A (NS5A) at amino acid positions of interest were analyzed by next generation sequencing relative to baseline and prototypic reference sequences.

Secondary

MeasureTime frameDescription
Mean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeFrom Day 1 up to 3 years post-treatmentA serum sample for aspartate transaminase evaluation and platelets were collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). The aspartate transaminase to platelet ratio index (APRI) is used to assess liver fibrosis in participants with chronic liver disease. Scores range from 0 to ≥ 2.0, with scores \< 0.5 predictive of no liver fibrosis; scores \>1.5 significant fibrosis; and scores \> 2.0 indicative of cirrhosis.
Number of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionAfter Day 1 up to 3 years post-treatmentAny events (i.e., diagnoses) related to liver disease progression and/or HCV infection considered to be clinically significant by the investigator that began or worsened after Day 1 were documented until the end of the study or initiation of re-treatment for HCV (if applicable). Significant events related to liver disease progression include the development of cirrhosis, events indicative of hepatic decompensation, (including: variceal bleeding, new ascites, spontaneous bacterial peritonitis, hepatic encephalopathy, hepato-renal syndrome, hepatic hydrothorax or other evidence of hepatic decompensation considered to be significant by the investigator), change in the Child-Pugh category (e.g., change from Child-Pugh Class A to Child-Pugh Class B), the occurrence of hepatocellular carcinoma, liver transplantation and/or death.
Mean FibroScan Scores Over TimeUp to 3 years post-treatmentThe FibroScan test is used to assess liver fibrosis in participants with chronic liver disease. This was not performed as a study procedure, but any available results from source documents were summarized. For participants with Hepatitis C infection, a Fibroscan score of 2-7 kPa indicates no liver scarring or mild scarring; a score of 8 or 9 is associated with moderate liver scarring; 9-14 indicates severe liver scarring; and 14 or higher is indicative of advanced liver scarring, cirrhosis.
Mean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeFrom Day 1 up to 3 years post-treatmentA plasma sample for IP-10 testing was collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). IP-10 is used to assess liver fibrosis in participants with chronic liver disease.
Mean FibroTest Score Over TimeFrom Day 1 up to 3 years post-treatmentA serum sample for FibroTest evaluation was collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). FibroTest uses six biomarkers to generate a score that correlates to the degree of liver damage in participants. Scores range from 0 to 1, with higher scores indicating more severe liver fibrosis.

Countries

Australia, Belgium, Canada, Germany, New Zealand, Puerto Rico, United Kingdom, United States

Participant flow

Pre-assignment details

Full Analysis Set (FAS): all participants who received ABT-493 and/or ABT-530 in a prior Phase 2/3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-530 in a prior study were excluded from the FAS.

Participants by arm

ArmCount
HCV-infected Participants
Hepatitis C virus (HCV)-infected participants who received ABT-493 and/or ABT-530 in prior Phase 2 or 3 clinical studies with these agents for the treatment of chronic HCV and were not retreated prior to entering this study. No AbbVie study drug was administered in this study. The baseline data presented below are values at the time of the prior study start.
377
Total377

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath1
Overall StudyLost to Follow-up42
Overall StudyOther, not specified32
Overall StudyWithdrew consent15

Baseline characteristics

CharacteristicHCV-infected Participants
Age, Continuous54.1 years
STANDARD_DEVIATION 10.96
Baseline Cirrhosis Status
No
312 Participants
Baseline Cirrhosis Status
Yes
65 Participants
Baseline HCV RNA level6.2573 log10 IU/mL
STANDARD_DEVIATION 0.829
Baseline HIV-1/HCV coinfection status
No
370 Participants
Baseline HIV-1/HCV coinfection status
Yes
7 Participants
Baseline injection drug use status
Missing
3 Participants
Baseline injection drug use status
No
193 Participants
Baseline injection drug use status
Yes
181 Participants
HCV Genotype
1
168 Participants
HCV Genotype
2
76 Participants
HCV Genotype
3
106 Participants
HCV Genotype
4
14 Participants
HCV Genotype
5
7 Participants
HCV Genotype
6
6 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
2 Participants
Race/Ethnicity, Customized
Asian
16 Participants
Race/Ethnicity, Customized
Black or African American
29 Participants
Race/Ethnicity, Customized
Multi race
1 Participants
Race/Ethnicity, Customized
Native Hawaiian or other Pacific Islander
1 Participants
Race/Ethnicity, Customized
White
328 Participants
Sex: Female, Male
Female
172 Participants
Sex: Female, Male
Male
205 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-450/r + ABT-530 + RBV-12 wks
4 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 200 mg QD + ABT-530 120 mg QD-12 wks
57 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 200 mg QD + ABT-530 120 mg QD + RBV-12 wks
10 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 200 mg QD + ABT-530 40 mg QD-12 wks
34 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 200 mg QD + ABT-530 80 mg QD-12 wks
1 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 300 mg QD + ABT-530 120 mg QD-12 wks
20 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 300 mg QD + ABT-530 120 mg QD-16 wks
1 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 300 mg QD + ABT-530 120 mg QD-8 wks
13 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493 300 mg QD + ABT-530 120 mg QD + RBV-12 wks
5 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493/ABT-530 300 mg/120 mg QD-12 wks
134 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493/ABT-530 300 mg/120 mg QD-16 wks
24 Participants
Study Drug Regimens Received in Prior Abbvie Study
ABT-493/ABT-530 300 mg/120 mg QD- 8 wks
74 Participants
Treatment Status Prior to Previous Study
Naive
265 Participants
Treatment Status Prior to Previous Study
NS5A- and PI- experienced
12 Participants
Treatment Status Prior to Previous Study
NS5A-experienced/PI naive
10 Participants
Treatment Status Prior to Previous Study
PI-experienced/NS5A naive
7 Participants
Treatment Status Prior to Previous Study
PRS-experienced
83 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
1 / 377
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 377

Outcome results

Primary

Number of Participants With Persistence of Resistance-Associated Amino Acid Variants Among Those Experiencing Virologic Failure

Plasma samples for HCV resistance testing were collected at study visits. The variants in nonstructural viral protein 3 (NS3) and nonstructural viral protein 5A (NS5A) at amino acid positions of interest were analyzed by next generation sequencing relative to baseline and prototypic reference sequences.

Time frame: From Day 1 to Month 12

Population: Participants who experienced virologic failure in previous study or in the current study with available sequencing data for NS3/4A and/or NS5A

ArmMeasureGroupValue (NUMBER)
HCV-infected ParticipantsNumber of Participants With Persistence of Resistance-Associated Amino Acid Variants Among Those Experiencing Virologic FailureNS3 Variants at Months 3, 6, and 121 participants
HCV-infected ParticipantsNumber of Participants With Persistence of Resistance-Associated Amino Acid Variants Among Those Experiencing Virologic FailureNS5A Variants at Months 3, 6, and 121 participants
Primary

Percentage of Participants Who Maintained a Sustained Virologic Response (SVR) Out of Those Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing Regimen

Maintaining a sustained virologic response (SVR) is defined as having Hepatitis C virus ribonucleic acid (HCV RNA) value consistently below the lower limit of quantification (\< LLOQ) from the end of treatment in the previous study throughout Study M13-576 (this study).

Time frame: From the end of treatment in the previous study up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-530 in a prior study were excluded from the FAS.

ArmMeasureValue (NUMBER)
HCV-infected ParticipantsPercentage of Participants Who Maintained a Sustained Virologic Response (SVR) Out of Those Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing Regimen99.5 percentage of participants
Primary

Percentage of Participants Who Relapsed or Had a New Hepatitis C Virus (HCV) Infection at Any Time up to the Last Follow-up in This Study Among Participants Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing Regimen

Relapse was defined as confirmed Hepatitis C virus ribonucleic acid (HCV RNA) greater than or equal to the lower limit of quantification (≥ LLOQ) between end of treatment and up to and including the last HCV RNA measurement collected in this study for a participant with HCV RNA \< LLOQ at Final Treatment Visit who completed treatment, excluding reinfection. HCV reinfection was defined as confirmed HCV RNA ≥ LLOQ after the end of treatment in a participant who had HCV RNA \< LLOQ at Final Treatment Visit, along with the post-treatment detection of a different HCV genotype, subtype, or clade compared with baseline, as determined by phylogenetic analysis of the NS3 or NS5A, and/or NS5B gene sequences.

Time frame: From the end of treatment in the previous study up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-530 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (NUMBER)
HCV-infected ParticipantsPercentage of Participants Who Relapsed or Had a New Hepatitis C Virus (HCV) Infection at Any Time up to the Last Follow-up in This Study Among Participants Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing RegimenReinfection overall0.3 percentage of participants
HCV-infected ParticipantsPercentage of Participants Who Relapsed or Had a New Hepatitis C Virus (HCV) Infection at Any Time up to the Last Follow-up in This Study Among Participants Who Achieved SVR12 in a Prior Study With an ABT-493- and/or ABT-530-containing RegimenRelapse overall0.3 percentage of participants
Secondary

Mean Aspartate Transaminase to Platelet Ratio Index (APRI) Over Time

A serum sample for aspartate transaminase evaluation and platelets were collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). The aspartate transaminase to platelet ratio index (APRI) is used to assess liver fibrosis in participants with chronic liver disease. Scores range from 0 to ≥ 2.0, with scores \< 0.5 predictive of no liver fibrosis; scores \>1.5 significant fibrosis; and scores \> 2.0 indicative of cirrhosis.

Time frame: From Day 1 up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study. Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-540 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (MEAN)Dispersion
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeDay 10.317 ratioStandard Deviation 0.2268
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 30.303 ratioStandard Deviation 0.2171
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 60.298 ratioStandard Deviation 0.2101
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 120.230 ratio
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 180.262 ratioStandard Deviation 0.0589
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 240.275 ratioStandard Deviation 0.162
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 300.227 ratioStandard Deviation 0.1084
HCV-infected ParticipantsMean Aspartate Transaminase to Platelet Ratio Index (APRI) Over TimeMonth 360.215 ratioStandard Deviation 0.1768
Secondary

Mean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over Time

A plasma sample for IP-10 testing was collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). IP-10 is used to assess liver fibrosis in participants with chronic liver disease.

Time frame: From Day 1 up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-530 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (MEAN)Dispersion
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeDay 1146.884 ng/LStandard Deviation 116.6272
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 3147.606 ng/LStandard Deviation 118.5143
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 6148.959 ng/LStandard Deviation 119.0047
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 12224.400 ng/L
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 18133.300 ng/LStandard Deviation 50.2647
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 24140.185 ng/LStandard Deviation 97.2769
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 30164.244 ng/LStandard Deviation 276.9176
HCV-infected ParticipantsMean Concentration of Interferon Gamma-induced Protein 10 (IP-10) Over TimeMonth 36120.600 ng/L
Secondary

Mean FibroScan Scores Over Time

The FibroScan test is used to assess liver fibrosis in participants with chronic liver disease. This was not performed as a study procedure, but any available results from source documents were summarized. For participants with Hepatitis C infection, a Fibroscan score of 2-7 kPa indicates no liver scarring or mild scarring; a score of 8 or 9 is associated with moderate liver scarring; 9-14 indicates severe liver scarring; and 14 or higher is indicative of advanced liver scarring, cirrhosis.

Time frame: Up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-540 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (MEAN)Dispersion
HCV-infected ParticipantsMean FibroScan Scores Over TimeDay 113.014 kPaStandard Deviation 12.685
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 36.880 kPaStandard Deviation 4.6677
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 610.780 kPaStandard Deviation 5.926
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 127.700 kPaStandard Deviation 4.2208
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 186.913 kPaStandard Deviation 2.8002
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 246.757 kPaStandard Deviation 3.1564
HCV-infected ParticipantsMean FibroScan Scores Over TimeMonth 309.400 kPa
Secondary

Mean FibroTest Score Over Time

A serum sample for FibroTest evaluation was collected at study visits for all participants, until the end of the study or initiation of re-treatment for HCV (if applicable). FibroTest uses six biomarkers to generate a score that correlates to the degree of liver damage in participants. Scores range from 0 to 1, with higher scores indicating more severe liver fibrosis.

Time frame: From Day 1 up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-540 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (MEAN)Dispersion
HCV-infected ParticipantsMean FibroTest Score Over TimeDay 10.354 units on a scaleStandard Deviation 0.2341
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 30.363 units on a scaleStandard Deviation 0.2383
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 60.353 units on a scaleStandard Deviation 0.2311
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 120.405 units on a scaleStandard Deviation 0.0919
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 180.272 units on a scaleStandard Deviation 0.1281
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 240.321 units on a scaleStandard Deviation 0.2156
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 300.261 units on a scaleStandard Deviation 0.1667
HCV-infected ParticipantsMean FibroTest Score Over TimeMonth 360.190 units on a scale
Secondary

Number of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus Infection

Any events (i.e., diagnoses) related to liver disease progression and/or HCV infection considered to be clinically significant by the investigator that began or worsened after Day 1 were documented until the end of the study or initiation of re-treatment for HCV (if applicable). Significant events related to liver disease progression include the development of cirrhosis, events indicative of hepatic decompensation, (including: variceal bleeding, new ascites, spontaneous bacterial peritonitis, hepatic encephalopathy, hepato-renal syndrome, hepatic hydrothorax or other evidence of hepatic decompensation considered to be significant by the investigator), change in the Child-Pugh category (e.g., change from Child-Pugh Class A to Child-Pugh Class B), the occurrence of hepatocellular carcinoma, liver transplantation and/or death.

Time frame: After Day 1 up to 3 years post-treatment

Population: Full Analysis Set (FAS):all participants who received ABT-493 and/or ABT-530 in a prior Phase 2 /3 study and were not retreated prior to enrolling in this study.Three participants who received retreatment prior to enrollment in this study and four participants who did not receive ABT-493 and/or ABT-530 in a prior study were excluded from the FAS.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionMedical events related to liver disease or HCV inf7 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionDevelopment of cirrhosis0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (Variceal bleeding)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (Ascites)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decomp (spontaneous bacterial peritonitis)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (hepatic encephalopathy)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (hepatorenal syndrome)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (hepatic hydrothorax)0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver decompensation (other [PI's discretion])0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionChange in Child-Pugh Score in subject w/cirrhosis0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionHepatocellular carcinoma (HCC)5 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionLiver transplantation occurred0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionDeath0 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionRegenerated node in the liver1 Participants
HCV-infected ParticipantsNumber of Participants With Medical Events Related to Progression of Liver Disease or Hepatitis C Virus InfectionCholangiocarcinoma/differentiated adenocarcinoma1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026