scholarly journals Pharmacotherapy Profiles in People with Opioid Use Disorders: Considerations for Relevant Drug–Drug Interactions with Antiviral Treatments for Hepatitis C

Pathogens ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 648
Author(s):  
Andreas Hintz ◽  
Tim Umland ◽  
Gero Niess ◽  
Mehtap Guendogdu ◽  
Anika Moerner ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Drug Interactions ◽  
People Who Inject Drugs ◽  
Lipid Lowering ◽  
Potential Ddis ◽  
Opioid Use ◽  
Opioid Substitution Therapy ◽  
Hcv Therapy ◽  
Direct Acting ◽  
Opioid Substitution

People who inject drugs (PWID) are often affected by physical and psychological diseases and prone to co-medication. In Germany, about 50% of PWID are on opioid substitution therapy (OST). Comprehensive data on pharmacotherapy in these patients may help to select antiviral therapy against hepatitis C virus (HCV) infections and avoid drug–drug interactions (DDIs). We compared co-medication profiles based on statutory health insurance prescriptions (IQVIA database) of PWID (n = 16,693), OST (n = 95,023) and treated HCV patients (n = 7886). Potential DDIs with the most widely used HCV direct-acting agents (Sofosbuvir/Velpatasvir, Glecaprevir/Pibrentasvir and Elbasvir/Grazoprevir) were evaluated based on the Liverpool DDI database. Co-medication was present in 57% of PWID, 57% of OST, 44% of patients on HCV therapy and 46% in a subgroup receiving OST+HCV therapy (n = 747 of 1613). For all groups, co-medication belonging to ATC-class N (nervous system) was most commonly prescribed (in 75%, 68%, 41% and 62% of patients, respectively). Contraindications (i.e., DDIs precluding HCV therapy) were infrequent (0.4–2.5% of co-medications); potential DDIs with HCV therapies were shown for 13–19% of co-medications, namely for specific substances including some analgesics, antipsychotics, anticoagulants, lipid lowering drugs and steroids. In conclusion, concomitant pharmacotherapy is common and clinically relevant when treating HCV infection in PWID.

scholarly journals Comedications and potential drug-drug interactions with direct-acting antivirals in hepatitis C patients on hemodialysis

2021 ◽  
Vol 27 (1) ◽  
pp. 186-196
Author(s):  
Po-Yao Hsu ◽  
Yu-Ju Wei ◽  
Jia-Jung Lee ◽  
Sheng-Wen Niu ◽  
Jiun-Chi Huang ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Drug Interactions ◽  
Median Number ◽  
Lipid Lowering ◽  
Hcv Rna ◽  
Close Monitoring ◽  
Potential Drug ◽  
Direct Acting Antivirals ◽  
Potential Ddis ◽  
Direct Acting

Background/Aims: Direct‐acting antivirals (DAAs) have been approved for hepatitis C virus (HCV) treatment in patients with end-stage renal disease (ESRD) on hemodialysis. Nevertheless, the complicated comedications and their potential drug-drug interactions (DDIs) with DAAs might limit clinical practice in this special population.Methods: The number, class, and characteristics of comedications and their potential DDIs with five DAA regimens were analyzed among HCV-viremic patients from 23 hemodialysis centers in Taiwan.Results: Of 2,015 hemodialysis patients screened in 2019, 169 patients seropositive for HCV RNA were enrolled (mean age, 65.6 years; median duration of hemodialysis, 5.8 years). All patients received at least one comedication (median number, 6; mean class number, 3.4). The most common comedication classes were ESRD-associated medications (94.1%), cardiovascular drugs (69.8%) and antidiabetic drugs (43.2%). ESRD-associated medications were excluded from DDI analysis. Sofosbuvir/velpatasvir/voxilaprevir had the highest frequency of potential contraindicated DDIs (red, 5.6%), followed by glecaprevir/pibrentasvir (4.0%), sofosbuvir/ledipasvir (1.3%), sofosbuvir/velpatasvir (1.3%), and elbasvir/grazoprevir (0.3%). For potentially significant DDIs (orange, requiring close monitoring or dose adjustments), sofosbuvir/velpatasvir/voxilaprevir had the highest frequency (19.9%), followed by sofosbuvir/ledipasvir (18.2%), glecaprevir/pibrentasvir (12.6%), sofosbuvir/velpatasvir (12.6%), and elbasvir/grazoprevir (7.3%). Overall, lipid-lowering agents were the most common comedication class with red-category DDIs to all DAA regimens (n=62), followed by cardiovascular agents (n=15), and central nervous system agents (n=10).Conclusions: HCV-viremic patients on hemodialysis had a very high prevalence of comedications with a broad spectrum, which had varied DDIs with currently available DAA regimens. Elbasvir/grazoprevir had the fewest potential DDIs, and sofosbuvir/velpatasvir/voxilaprevir had the most potential DDIs.

scholarly journals Efficacy of Direct-acting Antivirals for Chronic Hepatitis C Virus Infection in People Who Inject Drugs or Receive Opioid Substitution Therapy: A Systematic Review and Meta-analysis

2019 ◽  
Vol 70 (11) ◽  
pp. 2355-2365 ◽  
Author(s):  
Christiana Graf ◽  
Marcus M Mücke ◽  
Georg Dultz ◽  
Kai-Henrik Peiffer ◽  
Alica Kubesch ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Treatment Outcomes ◽  
People Who Inject Drugs ◽  
Discontinuation Rate ◽  
Direct Acting Antivirals ◽  
Substitution Therapy ◽  
Opioid Substitution Therapy ◽  
Direct Acting ◽  
Opioid Substitution

Abstract Background Treatment uptake for hepatitis C virus (HCV) infection in people who inject drugs (PWID) and patients on opioid substitution therapy (OST) is still low despite treatment guidelines that advocate the use of direct-acting antivirals (DAAs) in all patients. Our aim in this review was to investigate treatment outcomes among PWID and patients on OST in comparison to control cohorts. Methods A search of Embase, Medline, PubMed, and Web of Science (from October 2010 to March 2018) was conducted to assess sustained virologic response (SVR), discontinuation rates, adherence, and HCV reinfection in PWID and patients on OST. Results We identified 11 primary articles and 12 conference abstracts comprising 1702 patients on OST, 538 PWID, and 19 723 patients who served as controls. Among patients on OST, the pooled SVR was 90% (95% confidence interval [CI], 87% to 93%) and pooled treatment discontinuation rate was 7% (95% CI, 4% to 11%). Similarly, the pooled SVR was 88% (95% CI, 80% to 93%) in PWID and the pooled treatment discontinuation rate was 9% (95% CI, 5% to 15%). There was no significant difference regarding pooled rates of SVR, adherence, and discontinuation between patients on OST and controls as well as between PWID and controls. HCV reinfection rates among patients on OST ranged from 0.0 to 12.5 per 100 person-years. Conclusions HCV treatment outcomes in PWID and patients on OST are similar to those in patients without a history of injecting drugs, supporting current guideline recommendations to treat HCV in these patient populations.

Integrated, Co-located, Telemedicine-based Treatment Approaches for Hepatitis C Virus Management in Opioid Use Disorder Patients on Methadone

2018 ◽  
Vol 69 (2) ◽  
pp. 323-331 ◽  
Author(s):  
Andrew H Talal ◽  
Phyllis Andrews ◽  
Anthony Mcleod ◽  
Yang Chen ◽  
Clewert Sylvester ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Multiple Correspondence Analysis ◽  
Opioid Use Disorder ◽  
Hcv Rna ◽  
Directly Observed Therapy ◽  
Opioid Use ◽  
Hcv Treatment ◽  
Opioid Substitution Therapy ◽  
Direct Acting

Abstract Background Despite high hepatitis C virus (HCV) prevalence, opioid use disorder (OUD) patients on methadone rarely engage in HCV treatment. We investigated the effectiveness of HCV management via telemedicine in an opioid substitution therapy (OST) program. Methods OUD patients on methadone underwent biweekly telemedicine sessions between a hepatologist and physician assistant during the entire HCV treatment course. All pretreatment labs (HCV RNA, genotype, and noninvasive fibrosis assessments) were obtained onsite and direct-acting antivirals were coadministered with methadone using modified directly observed therapy. We used multiple correspondence analysis, least absolute shrinkage and selection operator, and logistic regression to identify variables associated with pursuit of HCV care. Results Sixty-two HCV RNA–positive patients (24% human immunodeficiency virus [HIV] infected, 61% male, 61% African American, 25.8% Hispanic) were evaluated. All patients were stabilized on methadone and all except 4 were HCV genotype 1 infected. Advanced fibrosis/cirrhosis was present in 34.5% of patients. Of the 45 treated patients, 42 (93.3%) achieved viral eradication. Of 17 evaluated patients who were not treated, 5 were discontinued from the drug treatment program or did not follow up after the evaluation, 2 had HIV adherence issues, and 10 had insurance authorization issues. Marriage and a mental health diagnosis other than depression were the strongest positive predictors of treatment pursuit, whereas being divorced, separated, or widowed was the strongest negative predictor. Conclusions HCV management via telemedicine integrated into an OST program is a feasible model with excellent virologic effectiveness. Psychosocial and demographic variables can assist in identification of subgroups with a propensity or aversion to pursue HCV treatment.

scholarly journals Efficacy and Safety of Ombitasvir/Paritaprevir/Ritonavir and Dasabuvir With or Without Ribavirin in Patients With Chronic Hepatitis C Virus Genotype 1 Infection Receiving Opioid Substitution Therapy: A Post Hoc Analysis of 12 Clinical Trials

2018 ◽  
Vol 5 (11) ◽  
Author(s):  
Jason Grebely ◽  
Massimo Puoti ◽  
Heiner Wedemeyer ◽  
Curtis Cooper ◽  
Mark S Sulkowski ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Hepatitis C ◽  
Treatment Adherence ◽  
Efficacy And Safety ◽  
Substitution Therapy ◽  
Hcv Treatment ◽  
Opioid Substitution Therapy ◽  
Direct Acting Antiviral ◽  
Direct Acting ◽  
Opioid Substitution

Abstract Background We evaluated the impact of opioid substitution therapy (OST) on the completion, adherence, efficacy, and safety of the 3-direct-acting antiviral regimen of ombitasvir, paritaprevir (identified by AbbVie and Enanta) co-dosed with ritonavir, and dasabuvir ± ribavirin among patients infected with hepatitis C virus (HCV) genotype (GT) 1, with or without compensated cirrhosis. Methods Data were pooled from GT1-infected patients enrolled in 12 phase II/III/IIIb clinical trials and categorized by use of OST. Patients with ongoing drug use were excluded. HCV treatment completion, treatment adherence (≥90%), sustained virologic response at post-treatment week 12 (SVR12), and adverse events were assessed. Results Of 4747 patients, 3% (n = 149) received OST. Among patients receiving OST vs those not receiving OST, 82% (n = 122) vs 52% (n = 2409) had GT1a infection; 76% (n = 113) vs 61% (n = 2792) were treatment naïve; and 17% (n = 25) vs 18% (n = 830) had cirrhosis, respectively. The proportion of patients completing HCV treatment did not differ between those receiving and not receiving OST (97% [n = 144] vs 98% [n = 4510], respectively), whereas adherence to treatment was reduced in patients receiving vs those not receiving OST (88% [n = 105] vs 97% [n = 4057], respectively). SVR12 was similar between patients receiving and not receiving OST (94% [n = 140] vs 96% [n = 4405], respectively; P = .273). Treatment was well tolerated. Conclusions Although treatment adherence was lower in patients receiving OST vs those not receiving OST, treatment completion and SVR12 were similar between groups. These data support the use of direct-acting antiviral therapies in patients receiving OST.

scholarly journals Opioid substitution therapy protects against hepatitis C virus acquisition in people who inject drugs: the HITS‐c study

2014 ◽  
Vol 201 (6) ◽  
pp. 326-329 ◽  
Author(s):  
Bethany White ◽  
Gregory J Dore ◽  
Andrew R Lloyd ◽  
William D Rawlinson ◽  
Lisa Maher
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
People Who Inject Drugs ◽  
Substitution Therapy ◽  
Opioid Substitution Therapy ◽  
Virus Acquisition ◽  
Opioid Substitution

scholarly journals Needle syringe programmes and opioid substitution therapy for preventing hepatitis C transmission in people who inject drugs

2017 ◽  
Author(s):  
Lucy Platt ◽  
Silvia Minozzi ◽  
Jennifer Reed ◽  
Peter Vickerman ◽  
Holly Hagan ◽  
...  
Keyword(s):  
Hepatitis C ◽  
People Who Inject Drugs ◽  
Substitution Therapy ◽  
Opioid Substitution Therapy ◽  
Opioid Substitution

scholarly journals The effects of needle-sharing and opioid substitution therapy on incidence of hepatitis C virus infection and reinfection in people who inject drugs

2016 ◽  
Vol 145 (4) ◽  
pp. 796-801 ◽  
Author(s):  
C. K. AITKEN ◽  
P. A. AGIUS ◽  
P. G. HIGGS ◽  
M. A. STOOVÉ ◽  
D. S. BOWDEN ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
People Who Inject Drugs ◽  
Hcv Infection ◽  
Protective Effects ◽  
Needle Sharing ◽  
Substitution Therapy ◽  
Opioid Substitution Therapy ◽  
Cross Model ◽  
Opioid Substitution

SUMMARYAlthough high hepatitis C virus (HCV) prevalence has been observed in people who inject drugs (PWID) for decades, research suggests incidence is falling. We examined whether PWIDs’ use of opioid substitution therapy (OST) and their needle-and-syringe sharing behaviour explained HCV incidence. We assessed HCV incidence in 235 PWID in Melbourne, Australia, and performed discrete-time survival with needle-sharing and OST status as independent variables. HCV infection, reinfection and combined infection/reinfection incidences were 7·6 [95% confidence interval (CI) 4·8–11·9], 12·4 (95% CI 9·1–17·0) and 9·7 (95% CI 7·4–12·6) per 100 person-years, respectively. Needle-sharing was significantly associated with higher incidence of naive HCV infection [hazard ratio (HR) 4·9, 95% CI 1·3–17·7] but not reinfection (HR 1·85, 95% CI 0·79–4·32); however, a cross-model test suggested this difference was sample specific. Past month use of OST had non-significant protective effects against naive HCV infection and reinfection. Our data confirm previous evidence of greatly reduced HCV incidence in PWID, but not the significant protective effect of OST on HCV incidence detected in recent studies. Our findings reinforce the need for greater access to HCV testing and prevention services to accelerate the decline in incidence, and HCV treatment, management and support to limit reinfection.

scholarly journals Drug–Drug Interactions in Italian Patients with Chronic Hepatitis C Treated with Pangenotypic Direct Acting Agents: Insights from a Real-World Study

2021 ◽  
Vol 18 (13) ◽  
pp. 7144
Author(s):  
Alessandra Mangia ◽  
Francesco Scaglione ◽  
Pierluigi Toniutto ◽  
Mario Pirisi ◽  
Nicola Coppola ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C ◽  
Drug Interactions ◽  
Chronic Hepatitis C ◽  
Real World ◽  
Cardiovascular Drugs ◽  
Administrative Databases ◽  
Potential Ddis ◽  
Concomitant Medications ◽  
Direct Acting

This Italian observational real-world study aims to assess in chronic hepatitis C virus (HCV) patients treated with pangenotypic direct acting agents (pDAAs) glecaprevir/pibrentasvir (GLE/PIB) or sofosbuvir/velpatasvir (SOF/VEL) the potential drug–drug interactions (DDIs) with concomitant medications prescribed, with a focus on cardiovascular and system nervous (CNS) co-medications. Data were collected from administrative databases covering 6.9 million health-assisted individuals. All patients prescribed SOF/VEL or GLE/PIB between 11/2017 and 12/2018 were included. Patients were analyzed while on DAA. DDIs were identified according to the Liverpool University tool. Overall, 3,181 HCV patients were included: 1619 in the GLE/PIB cohort and 1,562 in the SOF/VEL cohort. SOF/VEL patients were generally older than GLE/PIB ones (mean age 58.4 vs. 53.1, p < 0.001) and had more cardiovascular and CNS comorbidities (58% vs. 42%, p < 0.001 and 33% vs. 28%, p = 0.002, respectively). Contraindications due to DDIs in the GLE/PIB cohort affected 9.3% and 3.2% of patients before and on DAA, respectively, while the percentages in the SOF/VEL cohort were 3.2% before and 0.4% after pDAAs initiation. Among GLE/PIB patients, 2.7% had cardiovascular drugs (all statins) contraindicated while on DAA. The potential DDIs between cardiovascular drugs and SOF/VEL were mainly with statins (5%). SOF/VEL was prescribed in patients with older age and with more cardiovascular and CNS comorbidities. Despite this, a proportion of contraindicated drugs lower than that of GLE/PIB was registered.

Individualized treatment of chronic hepatitis C in patients receiving opioid substitution therapy

2016 ◽  
Vol 54 (05) ◽  
Author(s):  
S Moser ◽  
A Schütz ◽  
K Marchart ◽  
S Ambrosch ◽  
E Gutic ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Individualized Treatment ◽  
Substitution Therapy ◽  
Opioid Substitution Therapy ◽  
Opioid Substitution
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