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1.
Int J STD AIDS ; 30(7): 689-695, 2019 06.
Article in English | MEDLINE | ID: mdl-31046611

ABSTRACT

U.S. guidelines recommend that patients coinfected with human immunodeficiency virus (HIV) and hepatitis C virus (HCV) be prioritized for HCV treatment with direct-acting antiviral agents (DAAs), but the high cost of DAAs may contribute to disparities in treatment uptake and outcomes. We evaluated DAA initiation and effectiveness in HIV/HCV-coinfected patients in a U.S.-based healthcare system during October 2014-December 2017. Of 462 HIV/HCV-coinfected patients, 276 initiated DAAs (70% cumulative proportion treated over three years). Lower likelihood of DAA initiation was observed among patients with Medicare (government-sponsored insurance) versus commercial insurance (adjusted rate ratio [aRR] = 0.62, 95% CI = 0.46-0.84), patients with drug abuse diagnoses (aRR = 0.72, 95% CI = 0.54-0.97), patients with CD4 cell count <200 cells/µl versus ≥500 (aRR = 0.45, 95% CI = 0.23-0.91), and patients without prior HCV treatment (aRR = 0.68, 95% CI = 0.48-0.97). There were no significant differences in DAA initiation by age, gender, race/ethnicity, socioeconomic status, HIV transmission risk, alcohol use, smoking, fibrosis level, HIV RNA levels, antiretroviral therapy use, hepatitis B infection, or number of outpatient visits. Ninety-five percent of patients achieved sustained virologic response (SVR). We found little evidence of sociodemographic disparities in DAA initiation among HIV/HCV-coinfected patients, and SVR rates were high. Efforts are needed to increase DAA uptake among coinfected Medicare enrollees, patients with drug abuse diagnoses, patients with low CD4 cell count, and patients receiving first-time HCV treatment.


Subject(s)
Antiviral Agents/therapeutic use , Coinfection/epidemiology , Delivery of Health Care, Integrated , HIV Infections/drug therapy , Hepacivirus/isolation & purification , Hepatitis C/drug therapy , Insurance, Health/statistics & numerical data , Adult , Aged , Antiviral Agents/economics , Coinfection/virology , Female , HIV Infections/epidemiology , Hepacivirus/genetics , Hepatitis C/epidemiology , Humans , Male , Medicare , Middle Aged , Retrospective Studies , Socioeconomic Factors , Sustained Virologic Response , Treatment Outcome , United States
2.
Public Health Rep ; 133(4): 452-460, 2018.
Article in English | MEDLINE | ID: mdl-29750893

ABSTRACT

OBJECTIVES: The cost of direct-acting antiviral agents (DAAs) for hepatitis C virus (HCV) infection may contribute to treatment disparities. However, few data exist on factors associated with DAA initiation. METHODS: We conducted a retrospective cohort study of HCV-infected Kaiser Permanente Northern California members aged ≥18 during October 2014 to December 2016, using Poisson regression models to evaluate demographic, behavioral, and clinical factors associated with DAA initiation. RESULTS: Of 14 790 HCV-infected patients aged ≥18 (median age, 60; interquartile range, 53-64), 6148 (42%) initiated DAAs. DAA initiation was less likely among patients who were non-Hispanic black (adjusted rate ratio [aRR] = 0.7; 95% confidence interval [CI], 0.7-0.8), Hispanic (aRR = 0.8; 95% CI, 0.7-0.9), and of other minority races/ethnicities (aRR = 0.9; 95% CI, 0.8-1.0) than among non-Hispanic white people and among those with lowest compared with highest neighborhood deprivation index (ie, a marker of socioeconomic status) (aRR = 0.8; 95% CI, 0.7-0.8). Having maximum annual out-of-pocket health care costs >$3000 compared with ≤$3000 (aRR = 0.9; 95% CI, 0.8-0.9) and having Medicare (aRR = 0.8; 95% CI, 0.8-0.9) or Medicaid (aRR = 0.7; 95% CI, 0.6-0.8) compared with private health insurance were associated with a lower likelihood of DAA initiation. Behavioral factors (eg, drug abuse diagnoses, alcohol use, and smoking) were also significantly associated with a lower likelihood of DAA initiation (all P < .001). Clinical factors associated with a higher likelihood of DAA initiation were advanced liver fibrosis, HCV genotype 1, previous HCV treatment (all P < .001), and HIV infection ( P = .007). CONCLUSIONS: Racial/ethnic and socioeconomic disparities exist in DAA initiation. Substance use may also influence patient or provider decision making about DAA initiation. Strategies are needed to ensure equitable access to DAAs, even in insured populations.


Subject(s)
Antiviral Agents/therapeutic use , Healthcare Disparities , Hepatitis C/drug therapy , Insurance, Health/statistics & numerical data , Antiviral Agents/economics , Black People/statistics & numerical data , California/epidemiology , Hepacivirus/isolation & purification , Hepatitis C/epidemiology , Hepatitis C/ethnology , Hispanic or Latino/statistics & numerical data , Humans , Medicaid , Medicare , Middle Aged , Retrospective Studies , Socioeconomic Factors , United States , White People/statistics & numerical data
3.
Clin Gastroenterol Hepatol ; 16(6): 927-935, 2018 06.
Article in English | MEDLINE | ID: mdl-29535057

ABSTRACT

BACKGROUND & AIMS: Treatment with the combination of ledipasvir and sofosbuvir for 12 weeks has been approved by the Food and Drug Administration for patients with genotype 1 hepatitis C virus (HCV) infection; some patients can be treated with an 8-week course. Guidelines recommend a 12-week treatment course for black patients, but studies have not compared the effectiveness of 8 vs 12 weeks in black patients who are otherwise eligible for an 8-week treatment regimen. METHODS: We conducted an observational study of Kaiser Permanente Northern California members with HCV genotype 1 infection who were eligible for 8 weeks of treatment with ledipasvir and sofosbuvir (treatment-naïve, no cirrhosis, no HIV infection, level of HCV RNA <6 million IU/mL) and were treated for 8 or 12 weeks from October 2014 through December 2016. We used χ2 analyses to compare sustained virologic response 12 weeks after the end of treatment (SVR12) among patients treated for 8 vs 12 weeks, and adjusted Poisson models to identify factors associated with receipt of 12 weeks of therapy among patients eligible for 8 weeks. RESULTS: Of 2653 patients eligible for 8 weeks of treatment with ledipasvir and sofosbuvir, 1958 (73.8%) received 8 weeks of treatment and 695 (26.2%) received 12 weeks; the proportions of patients with SVR12 were 96.3% and 96.3%, respectively (P = .94). Among 435 black patients eligible for the 8-week treatment regimen, there was no difference in the proportions who achieved an SVR12 following 8 vs 12 weeks' treatment (95.6% vs 95.8%; P = .90). Male sex, higher transient elastography or FIB-4 scores, higher INR and level of bilirubin, lower level of albumin, obesity, diabetes, and ≥15 alcohol drinks consumed/week were independently associated with receiving 12 weeks of treatment among patients eligible for the 8-week treatment regimen, but were not associated with reduced SVR12 after 8 weeks of treatment. CONCLUSION: In an observational study of patients who received ledipasvir and sofosbuvir treatment for HCV genotype 1 infection, we found that contrary to guidelines, 8-week and 12-week treatment regimens do not result in statistically significant differences in SVR12 in black patients. Patient characteristics were associated with receipt of 12-week regimens among patients eligible for 8 weeks, but were not associated with reduced SVR12 after 8 weeks. Shorter treatment courses might therefore be more widely used without compromising treatment effectiveness.


Subject(s)
Antiviral Agents/administration & dosage , Benzimidazoles/administration & dosage , Fluorenes/administration & dosage , Hepatitis C, Chronic/drug therapy , Sofosbuvir/administration & dosage , Adult , Aged , Aged, 80 and over , Black People , California , Female , Genotype , Hepacivirus/classification , Hepacivirus/genetics , Hepatitis C, Chronic/virology , Humans , Male , Middle Aged , Time Factors , Treatment Outcome
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