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Weil C, Mehta D, Koren G, Pinsky B, Samp JC, Chodick G, Shalev V. Sustained virological response to ombitasvir/paritaprevir/ritonavir and dasabuvir treatment for hepatitis C: Real-world data from a large healthcare provider. J Viral Hepat 2018; 25:144-151. [PMID: 28984012 DOI: 10.1111/jvh.12800] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 08/06/2017] [Indexed: 01/08/2023]
Abstract
Treatment with ombitasvir/paritaprevir/ritonavir and dasabuvir, with or without ribavirin (OPrD ± RBV), was the first interferon-free direct-acting antiviral for hepatitis C virus (HCV) introduced to Israel's national basket of health services in February 2015. Patients with HCV genotype 1 (GT1) and advanced fibrosis (F3-F4) were eligible for treatment in 2015. This study aimed to characterize patients initiating OPrD ± RBV and assess sustained virological response (SVR). A retrospective cohort study was performed using the database of Maccabi Healthcare Services (MHS), a 2-million-member health plan in Israel. The study population included adults who initiated OPrD ± RBV through December 2015 per health basket criteria. A gap in medication fills (>14 days between a fill's run-out and the next fill) was used to estimate adherence. SVR was defined by the viral tests at least 12-week post-treatment. The study population consisted of 403 patients (56.3% male), with a mean age of 60.7 years (SD 11.0). Overall, 71.0% were naïve to prior HCV treatment, and 95.6% were treated with a 12-week regimen. A total of 348 patients (86.4%) completed the regimen in the usual time frame (highly adherent), whereas 8.2% completed with a gap, and 4.7% purchased less than the recommended dose. SVR rates overall and among highly adherent patients were 395/403 (98.0%; 95% CI 96.1-99.1) and 346/348 (99.4%; 95% CI 97.9-99.9), respectively. GT1b patients on 12-week regimens attained SVR rates of 194/196 (fibrosis F3) and 170/176 (cirrhosis). After a first year of provision of OPrD ± RBV with good adherence, high SVR rates were achieved in various patient subgroups and comorbidities.
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Affiliation(s)
- C Weil
- Epidemiology and Database Research, Maccabi Healthcare Services, Tel Aviv, Israel
| | - D Mehta
- Health Economics and Outcomes Research, AbbVie, North Chicago, IL, USA.,Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles, CA, USA
| | - G Koren
- Epidemiology and Database Research, Maccabi Healthcare Services, Tel Aviv, Israel
| | - B Pinsky
- Health Economics and Outcomes Research, AbbVie, North Chicago, IL, USA
| | - J C Samp
- Health Economics and Outcomes Research, AbbVie, North Chicago, IL, USA
| | - G Chodick
- Epidemiology and Database Research, Maccabi Healthcare Services, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - V Shalev
- Epidemiology and Database Research, Maccabi Healthcare Services, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Samp JC, Walker D, Manthena S, Juday T. Adherence Rates For Peginterferon + Ribavirin Compared With Telaprevir + Peginterferon + Ribavirin In Medicaid And Commercial Patients Treated For Chronic Hepatitis C. Value Health 2014; 17:A368. [PMID: 27200776 DOI: 10.1016/j.jval.2014.08.831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | | | | | - T Juday
- AbbVie, North Chicago, IL, USA
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Chai XS, Samp JC. Corrosion problem in headspace gas chromatography with phase reaction conversion technique. J Chromatogr A 2007; 1157:477-9. [PMID: 17524411 DOI: 10.1016/j.chroma.2007.04.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2007] [Revised: 04/21/2007] [Accepted: 04/24/2007] [Indexed: 11/26/2022]
Abstract
This paper reports a corrosion problem in the headspace sampling needle when using a phase reaction conversion headspace gas chromatographic method in Agilent headspace auto-sampler. The examination by microscopy shows that corrosion mainly takes place on the surface of the outer wall of the needle that is exposed to the air during each headspace sampling. Since it was proven that the helium flushing is effective in minimizing the pit type of corrosion on the stainless needle material, a custom-made surface flushing device was proposed for corrosion inhibition.
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Affiliation(s)
- X-S Chai
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China.
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Chai XS, Samp JC, Yang QF, Song HN, Zhang DC, Zhu JY. Determination of microstickies in recycled whitewater by headspace gas chromatography. J Chromatogr A 2006; 1108:14-9. [PMID: 16455091 DOI: 10.1016/j.chroma.2005.12.108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Revised: 12/20/2005] [Accepted: 12/23/2005] [Indexed: 11/16/2022]
Abstract
This study proposed a novel headspace gas chromatographic (HS-GC) method for determination of adhesive contaminants (microstickies) in recycled whitewater, a fiber containing process stream, in the paper mill. It is based on the adsorption behavior of toluene (as a tracer) on the hydrophobic surface of microstickies, which affects the apparent vapor-liquid equilibration partitioning of toluene. It was found that the equilibrium concentration of toluene in the vapor phase is inversely proportional to the apparent effective surface area of microstickies that remain in the corresponding solution. Thus, the amount of microsticky materials in the recycled whitewater can be quantified by HS-GC via indirect measurement of the toluene content in the vapor phase of the sample without any pretreatment. The presented method is simple, rapid and automated.
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Affiliation(s)
- X-S Chai
- School of Light Industrial and Food Engineering, Guangxi University, Nanning, Guangxi 530004, China.
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