Trial Outcomes & Findings for Effectiveness of Paritaprevir/r - Ombitasvir, ± Dasabuvir, ± Ribavirin in Patients With Chronic Hepatitis C in Canada (NCT NCT02581189)

Last Updated: 2019-03-27

Results Overview

SVR12 was defined as hepatitis C virus ribonucleic acid (HCV RNA) level less than 50 IU/mL 12 weeks after the last actual dose of study drug. The core population (CP) consisted of participants who met all inclusion criteria and were adequately treated according to the standard of care and within local label recommendations for their specific disease characteristics (cirrhotic status, genotype). The core population with sufficient follow-up data 12 weeks after the last actual dose of study drug (CPSFU12) was defined as all CP participants who fulfilled one of the following criteria: * evaluable HCV RNA data ≥70 days after the last actual dose of the ABBVIE REGIMEN * an HCV RNA value ≥50 IU/mL at the last measurement post-baseline * HCV RNA \<50 IU/mL at the last measurement post-baseline, but no HCV RNA measurement ≥70 days after the last actual dose of the ABBVIE REGIMEN due to reasons related to safety (e.g. dropped out due to AE) or virologic failure

Recruitment status

COMPLETED

Target enrollment

565 participants

Primary outcome timeframe

12 weeks after the last actual dose of study drug

Results posted on

2019-03-27

Participant Flow

Safety population: all enrolled participants receiving at least 1 dose of the ABBVIE REGIMEN.The prescribed ABBVIE REGIMEN needed to be known. 565 participants enrolled; treatment not started in 28 participants; 3 withdrew consent and no start of treatment was recorded; Two of the 3 deaths noted below occurred during the SAE collection period.

Participant milestones

Participant milestones
Measure	Participants With HCV Genotype 1 or 4 Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Overall Study STARTED	534
Overall Study COMPLETED	481
Overall Study NOT COMPLETED	53

Reasons for withdrawal

Reasons for withdrawal
Measure	Participants With HCV Genotype 1 or 4 Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Overall Study Failure to return	36
Overall Study Withdrew consent	5
Overall Study Death	3
Overall Study Insufficient virological response	2
Overall Study Other, not specified	7

Baseline Characteristics

Effectiveness of Paritaprevir/r - Ombitasvir, ± Dasabuvir, ± Ribavirin in Patients With Chronic Hepatitis C in Canada

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure	Participants With HCV Genotype 1 or 4 n=534 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Age, Continuous	56 years STANDARD_DEVIATION 11.1 • n=5 Participants
Sex: Female, Male Female	179 Participants n=5 Participants
Sex: Female, Male Male	355 Participants n=5 Participants
Race (NIH/OMB) American Indian or Alaska Native	25 Participants n=5 Participants
Race (NIH/OMB) Asian	29 Participants n=5 Participants
Race (NIH/OMB) Native Hawaiian or Other Pacific Islander	0 Participants n=5 Participants
Race (NIH/OMB) Black or African American	19 Participants n=5 Participants
Race (NIH/OMB) White	426 Participants n=5 Participants
Race (NIH/OMB) More than one race	0 Participants n=5 Participants
Race (NIH/OMB) Unknown or Not Reported	35 Participants n=5 Participants
Hepatitis C genotype Genotype 1a	286 Participants n=5 Participants
Hepatitis C genotype Genotype 1b	221 Participants n=5 Participants
Hepatitis C genotype Genotype 4	27 Participants n=5 Participants

PRIMARY outcome

Timeframe: 12 weeks after the last actual dose of study drug

Population: Core population (CP) and core population with sufficient follow-up data 12 weeks after the last actual dose of study drug (CPSFU12) are defined in the outcome measure description

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants Achieving Sustained Virologic Response 12 Weeks Post-treatment (SVR12) Core population (CP)	86.6 percentage of participants Interval 83.5 to 89.3
Percentage of Participants Achieving Sustained Virologic Response 12 Weeks Post-treatment (SVR12) CPSFU12	94.1 percentage of participants Interval 91.6 to 95.8

SECONDARY outcome

Timeframe: Up to 24 weeks

Population: Core population: Participants meeting all inclusion criteria and who were adequately treated according to the standard of care and within local label recommendations for their specific disease characteristics (cirrhotic status, genotype)

Virologic response was defined as hepatitis C virus ribonucleic acid (HCV RNA) level less than 50 IU/mL at the end of treatment.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants With Virologic Response at End of Treatment (EoT)	93.8 percentage of participants Interval 91.4 to 95.5

SECONDARY outcome

Timeframe: Up to 48 weeks after the last actual dose of study drug

Relapse was defined as hepatitis C virus ribonucleic acid (HCV RNA) level less than 50 IU/mL at the end of treatment followed by HCV RNA level greater than or equal to 50 IU/mL.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants With Relapse	2.6 percentage of participants Interval 1.5 to 4.5

SECONDARY outcome

Timeframe: Up to 24 weeks

Population: Core population (those meeting inclusion criteria and treated according to the standard of care and w/in local label guidelines for specific disease characteristics \[cirrhotic status, genotype\]) who had at least 1 undetectable or unquantifiable, on-treatment HCV RNA measurement and at least 1 on-treatment or end of treatment measurement thereafter

Viral breakthrough was defined as at least 1 documented hepatitis C virus ribonucleic acid (HCV RNA) level less than 50 IU/mL followed by HCV RNA level greater than or equal to 50 IU/mL during treatment.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants With Viral Breakthrough	0.9 percentage of participants Interval 0.3 to 3.4

SECONDARY outcome

Timeframe: 12 weeks after the last actual dose of study drug

On-treatment virologic failure was defined as breakthrough (at least 1 documented hepatitis C virus ribonucleic acid (HCV RNA) less than 50 IU/mL followed by HCV RNA greater than or equal to 50 IU/mL during treatment) or failure to suppress (each measured on-treatment HCV RNA value greater than or equal to 50 IU/mL).

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants With On-treatment Virologic Failure	1.3 percentage of participants

SECONDARY outcome

Timeframe: 12 weeks after the last actual dose of study drug

Relapse was defined as hepatitis C virus ribonucleic acid (HCV RNA) less than 50 IU/mL at end of treatment or at the last on-treatment HCV RNA measurement followed by HCV RNA greater than or equal to 50 IU/mL post-treatment.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants Meeting Relapse Criteria	2.1 percentage of participants

SECONDARY outcome

Timeframe: 12 weeks after the last actual dose of study drug

Premature study drug discontinuation was defined as participants who prematurely discontinued study drug with no on-treatment virologic failure.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants Meeting Premature Study Drug Discontinuation Criteria	2.1 percentage of participants

SECONDARY outcome

Timeframe: 12 weeks after the last actual dose of study drug

Population: Participants meeting all inclusion criteria and who were adequately treated according to the standard of care and within local label recommendations for their specific disease characteristics (cirrhotic status, genotype)

The number of participants with missing SVR12 data or SVR12 nonresponder participants who did not meet criteria for on-treatment virologic failure, relapse, premature treatment discontinuation, and who did not have an Insufficient virological response reported was documented.

Outcome measures

Outcome measures
Measure	Participants With HCV Genotype 1 or 4 n=531 Participants Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily); ± dasabuvir (tablet; 250 mg twice daily); ± weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Percentage of Participants With Missing Sustained Virologic Response 12 Weeks Post-Treatment (SVR12) Data and/or Nonresponders Who Did Not Meet Specific SVR12 Nonresponder Criteria	6.6 percentage of participants

Adverse Events

Ombitasvir/Paritaprevir/Ritonavir

Serious events: 0 serious events

Other events: 0 other events

Deaths: 0 deaths

Ombitasvir/Paritaprevir/Ritonavir + Ribavirin

Serious events: 1 serious events

Other events: 10 other events

Deaths: 0 deaths

Ombitasvir/Paritaprevir/Ritonavir + Dasabuvir

Serious events: 9 serious events

Other events: 31 other events

Deaths: 2 deaths

Ombitasvir/Paritaprevir/Ritonavir + Dasabuvir + Ribavirin

Serious events: 15 serious events

Other events: 102 other events

Deaths: 1 deaths

Serious adverse events

Other adverse events

Other adverse events
Measure	Ombitasvir/Paritaprevir/Ritonavir n=1 participants at risk Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily) up to 24 weeks	Ombitasvir/Paritaprevir/Ritonavir + Ribavirin n=26 participants at risk Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily) + weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks	Ombitasvir/Paritaprevir/Ritonavir + Dasabuvir n=210 participants at risk Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily) + dasabuvir (tablet; 250 mg twice daily) up to 24 weeks	Ombitasvir/Paritaprevir/Ritonavir + Dasabuvir + Ribavirin n=297 participants at risk Ombitasvir/paritaprevir/ritonavir (two 12.5 mg/75 mg/50 mg co-formulated tablets once daily) + dasabuvir (tablet; 250 mg twice daily); + weight-based ribavirin (tablet; 1000 or 1200 mg divided twice a day) up to 24 weeks
Blood and lymphatic system disorders Anaemia	0.00% 0/1 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	15.4% 4/26 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	0.00% 0/210 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	11.4% 34/297 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.
General disorders Fatigue	0.00% 0/1 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	19.2% 5/26 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	9.0% 19/210 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	16.2% 48/297 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.
Nervous system disorders Headache	0.00% 0/1 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	11.5% 3/26 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	6.2% 13/210 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	11.1% 33/297 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.
Gastrointestinal disorders Nausea	0.00% 0/1 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	3.8% 1/26 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	5.2% 11/210 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	10.8% 32/297 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.
Psychiatric disorders Insomnia	0.00% 0/1 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	11.5% 3/26 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	0.48% 1/210 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.	6.7% 20/297 • Treatment-emergent adverse events (TEAEs) and serious adverse events (TESAEs) were collected from the time of study drug administration until 30 days after the last dose of study drug (up to 28 weeks). TEAEs and TESAEs are defined as any adverse event (AE) with an onset date that is after the first dose of study drug until 30 days after the last dose of study drug and were collected whether elicited or spontaneously reported by the participant.Two of the 3 deaths noted below occurred during the SAE collection period.

Additional Information

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Principal investigator is a sponsor employee AbbVie requests that any investigator or institution that plans on presenting/publishing results disclosure, provide written notification of their request 60 days prior to their presentation/publication. AbbVie requests that no presentation/publication will be instituted until 12 months after a study is completed, or after the first presentation/publication whichever occurs first. A delay may be proposed of a presentation/publication if AbbVie needs to secure patent or proprietary protection.
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