Clinical trial NCT02476617: Ombitasvir/ABT-450 (Paritaprevir)/Ritonavir With Dasabuvir and Ribavirin (RBV) in Treatment Naive and Treatment Experienced Genotype 1a Hepatitis C Virus Infected Adults
Official title: An Exploratory Study to Evaluate Immune Restoration Following Removal of Viral Antigen in Treatment-Naïve and Treatment-Experienced Adults With Genotype (GT) 1a Chronic Hepatitis C Virus (HCV) Infection Administered Ombitasvir/ ABT-450/Ritonavir With Dasabuvir and Ribavirin (RBV) for 12 Weeks
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE3
Conditions: Chronic Hepatitis C
Hepatitis C (HCV)
Hepatitis C Genotype 1a
Keywords: Treatment naive
Interferon free
HCV
Chronic Hepatitis C
Hepatitis C Genotype 1a
Hepatitis C
pegylated-interferon (pegIFN)/ribavirin (RBV) experienced
Lead sponsor: AbbVie
Sponsor class: INDUSTRY
First posted: 2015-06-19
Enrollment: 25
Sex: ALL
Minimum age (years): 18
Maximum age (years): 100
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: A study to evaluate immune restoration following removal of viral antigen in non-cirrhotic hepatitis C virus (HCV) genotype (GT) 1a treatment-naïve and pegylated-interferon (pegIFN)/ribavirin (RBV) treatment-experienced adults receiving treatment with ombitasvir/paritaprevir/ritonavir and dasabuvir coadministered with ribavirin (RBV) for 12 weeks.

Detailed description: A study to evaluate the role of ombitasvir/paritaprevir/ritonavir and dasabuvir coadministered with RBV treatment leading to sustained virologic response 12 weeks post-dosing (SVR12) on the changes from baseline in IFN-stimulated gene (ISG) expression in peripheral blood mononucleated cells (PBMCs) in HCV GT 1a-infected adult participants.

Eligibility criteria: Inclusion Criteria:

1. Screening laboratory result indicating hepatitis C viral (HCV) genotype (GT) 1a infection.
2. Chronic HCV infection.
3. Participants must be non-cirrhotic.
4. Participants must be treatment-naïve or have documentation that they were adherent to prior pegIFN/RBV combination therapy and meet the criteria of prior pegylated-interferon (pegIFN)/ribavirin (RBV) treatment failure.
5. Participants must meet specific human leukocyte antigen (HLA) allele requirements.

Exclusion Criteria:

1. Women who are pregnant or breastfeeding.
2. Positive test result for hepatitis B surface antigen (HBsAg) or anti-human immunodeficiency virus antibody (HIV Ab) positive immunoassay.
3. Clinically significant abnormalities or co-morbidities, other than HCV infection, that make the subject unsuitable for this study or treatment.
4. Current enrollment in another interventional clinical study, previous enrollment in this study, prior or current use of any investigational or commercially available anti-HCV agents other than pegIFN or RBV (including previous exposure to paritaprevir, ombitasvir, or dasabuvir), or receipt of any investigational product within 6 weeks prior to study drug administration.
5. History of solid organ transplant.
6. Screening laboratory analysis that shows abnormal results.

Primary outcomes:
measure: Change in Interferon (IFN)-Stimulated Genes (ISG) Expression in Peripheral Blood Mononucleated Cells (PBMCs) for Participants Achieving SVR12
timeFrame: Week 0 to Post-Treatment Week 12
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: AbbVie
name: Emily Dumas, PhD
role: STUDY_DIRECTOR
References:
citation: Tonnerre P, Wolski D, Subudhi S, Aljabban J, Hoogeveen RC, Damasio M, Drescher HK, Bartsch LM, Tully DC, Sen DR, Bean DJ, Brown J, Torres-Cornejo A, Robidoux M, Kvistad D, Alatrakchi N, Cui A, Lieb D, Cheney JA, Gustafson J, Lewis-Ximenez LL, Massenet-Regad L, Eisenhaure T, Aneja J, Haining WN, Chung RT, Hacohen N, Allen TM, Kim AY, Lauer GM. Differentiation of exhausted CD8+ T cells after termination of chronic antigen stimulation stops short of achieving functional T cell memory. Nat Immunol. 2021 Aug;22(8):1030-1041. doi: 10.1038/s41590-021-00982-6. Epub 2021 Jul 26.