101
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Viswanathan S, Justice AC, Alexander GC, Brown TT, Gandhi NR, McNicholl IR, Rimland D, Rodriguez-Barradas MC, Jacobson LP. Adherence and HIV RNA Suppression in the Current Era of Highly Active Antiretroviral Therapy. J Acquir Immune Defic Syndr 2015; 69:493-8. [PMID: 25886923 PMCID: PMC4482798 DOI: 10.1097/qai.0000000000000643] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND We examined trends in adherence to highly active antiretroviral therapy (HAART) and HIV RNA suppression and estimated the minimum cutoff of adherence to newer HAART formulations needed for HIV RNA suppression by regimen type. METHODS We used Veterans Affairs pharmacy dispensing data from the Veterans Aging Cohort Study Virtual Cohort between October 2000 and September 2010 and defined adherence as the duration of time the patient had the medications available, relative to the total number of days between refills for all antiretrovirals in a year. Temporal trends in adherence and viral load suppression were examined by the patient's most frequently used HAART regimen in the year. The minimum needed adherence was defined as the level at which the odds of suppression was not significantly different than that observed with ≥ 95% adherence using repeated-measures logistic regression. RESULTS A total of 21,865 HAART users contributed 82,217 person-years of follow-up. There was a significant increase (P(trend) < 0.001) in the proportion virally suppressed even among those with <95% adherence (2001: 38% to 2010: 84%), and the trend was similar when restricting to their first HAART regimen. For nonnucleoside reverse transcriptase inhibitor multi-pill users, the odds of suppression did not differ for 85%-89% adherence compared to those with ≥ 95% adherence [odds ratios: 0.82 (0.64-1.04)], but for protease inhibitor users, the odds of suppression significantly differed if adherence levels were <95% compared to ≥ 95% adherence. CONCLUSIONS Although all HIV-infected persons should be instructed to achieve perfect adherence, concerns of slightly lower adherence should not hinder prescribing new HAART regimens early in HIV infection.
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Affiliation(s)
- Shilpa Viswanathan
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Amy C. Justice
- Section Chief of General Medicine, VA Connecticut Healthcare System, West Haven CT
- Division of General Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT
| | - G. Caleb Alexander
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Todd T. Brown
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Neel R. Gandhi
- Departments of Epidemiology and Global Health, Emory University Rollins School of Public Health, Atlanta, GA
- Department of Medicine, Emory University School of Medicine, Atlanta, GA
| | | | - David Rimland
- Department of Medicine, Emory University School of Medicine, Atlanta, GA
- Atlanta VA Medical Center, Atlanta, GA, USA
| | - Maria C. Rodriguez-Barradas
- Infectious Disease Section and Department of Medicine, Michael E. DeBakey VA Medical Center
- Infectious Disease Section and Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Lisa P. Jacobson
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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Evidence-based interventions to enhance assessment, treatment, and adherence in the chronic Hepatitis C care continuum. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2015; 26:922-35. [PMID: 26077144 DOI: 10.1016/j.drugpo.2015.05.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/21/2015] [Accepted: 05/07/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND With the explosion of newly available direct acting antiviral (DAA) Hepatitis C virus (HCV) treatments that demonstrate 95% sustained virologic response (SVR) rates, evidence-based strategies are urgently needed to achieve real-world effectiveness in challenging patient populations. While HIV is incurable, lessons from over 30 years of experience overcoming obstacles to the HIV treatment cascade could be applied to the HCV context. METHODS Using Institute of Medicine guidelines, we conducted a systematic review of published interventions from PubMed, Medline, GoogleScholar, EmBASE, and PsychInfo bibliographic databases and citation indices. Abstracts were first screened by three independent reviewers and studies were included if they involved original research, described a specific intervention, were published in English in a peer-reviewed journal between 2001 and 2014, and had full text available. RESULTS Evidence-based interventions to enhance HCV assessment, treatment, and adherence generally fell into one of 4 categories, including those involving: (1) diagnosis or case-finding; (2) linkage to HCV care; (3) pre-therapeutic evaluation or treatment initiation; or (4) treatment adherence. While most available eligible studies described interventions using non-contemporary interferon-based HCV treatments, future research will need to address how these interventions apply to the context of well-tolerated, simple, oral treatment regimens. In some cases, we explored how HIV-specific interventions might be modified to fit the HCV spectrum of care engagement. CONCLUSIONS Evidence-based interventions should be strategically incorporated into HCV treatment implementation efforts to most effectively deliver treatment and maximize treatment outcomes.
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103
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Tufano CS, do Amaral RA, Cardoso LRD, Malbergier A. The influence of depressive symptoms and substance use on adherence to antiretroviral therapy. A cross-sectional prevalence study. SAO PAULO MED J 2015; 133:179-86. [PMID: 25250800 PMCID: PMC10876366 DOI: 10.1590/1516-3180.2013.7450010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 07/30/2013] [Accepted: 02/17/2014] [Indexed: 11/21/2022] Open
Abstract
CONTEXT AND OBJECTIVE Adherence to antiretroviral treatment (ART) is not a stable condition, but is dynamic, like mental conditions. The aim of this study was to examine whether non-adherence to ART is related to demographic and immunological variables, substance use and presence of depressive symptoms. DESIGN AND SETTING This was a cross-sectional prevalence study carried out at a public AIDS treatment center in the city of São Paulo, Brazil, between July 2006 and January 2007. METHODS 438 patients on regular ART schedules with recent laboratory tests answered a demographic questionnaire, questions about substance use, the Hamilton Depression Rating Scale (HDRS) and the Simplified Medication Adherence Questionnaire (SMAQ). RESULTS The prevalence of non-adherence over the past three months (a pattern of treatment interruption) was 46.3%, and 27.2% also reported this in the past week (a pattern of missed doses). ART interruption was significantly related to older age, lower CD4+ cell count and homosexual/bisexual transmission. The pattern of missed doses was significantly related to younger age, higher HDRS scores and higher viral load of RNA HIV. CONCLUSION ART interruption may reflect recall errors and changes to the Brazilian demographic characteristics of HIV infection. The missed doses may reflect lifestyle characteristics of younger individuals. Attendance for HIV-positive individuals, particularly younger patients, should involve interventions and counseling in relation to the presence of depressive symptoms.
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Affiliation(s)
| | | | | | - André Malbergier
- MD, MSc, PhD. Lecturer at Medical School, Universidade de São Paulo (USP), São Paulo, Brazil.
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104
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Joseph B, Kerr T, Puskas CM, Montaner J, Wood E, Milloy MJ. Factors linked to transitions in adherence to antiretroviral therapy among HIV-infected illicit drug users in a Canadian setting. AIDS Care 2015; 27:1128-36. [PMID: 25915438 DOI: 10.1080/09540121.2015.1032205] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
HIV-positive people who use illicit drugs typically achieve lower levels of adherence to antiretroviral therapy and experience higher rates of sub-optimal HIV/AIDS treatment outcomes. Given the dearth of longitudinal research into ART adherence dynamics, we sought to identify factors associated with transitioning into and out of optimal adherence to ART in a longitudinal study of HIV-infected people who use illicit drugs (PWUD) in a setting of universal no-cost HIV/AIDS treatment. Using data from a prospective cohort of community-recruited HIV-positive illicit drug users confidentially linked to comprehensive HIV/AIDS treatment records, we estimated longitudinal factors associated with losing or gaining ≥95% adherence in the previous six months using two generalized linear mixed-effects models. Among 703 HIV-infected ART-exposed PWUD, becoming non-adherent was associated with periods of homelessness (adjusted odds ratio [AOR] = 2.52, 95% confidence interval [95% CI]: 1.56-4.07), active injection drug use (AOR = 1.25, 95% CI: 1.01-1.56) and incarceration (AOR = 1.54, 95% CI: 1.10-2.17). Periods of sex work (AOR = 0.51, 95% CI: 0.34-0.75) and injection drug use (AOR = 0.62, 95% CI: 0.50-0.77) were barriers to becoming optimally adherent. Methadone maintenance therapy was associated with becoming optimally adherent (AOR = 1.87, 95% CI: 1.50-2.33) and was protective against becoming non-adherent (AOR = 0.52, 95% CI: 0.41-0.65). In conclusion, we identified several behavioural, social and structural factors that shape adherence patterns among PWUD. Our findings highlight the need to consider these contextual factors in interventions that support the effective delivery of ART to this population.
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Affiliation(s)
- Brenden Joseph
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada
| | - Thomas Kerr
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada.,b Division of AIDS, Department of Medicine , University of British Columbia , Vancouver , BC , Canada
| | - Cathy M Puskas
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada.,c Faculty of Health Sciences , Simon Fraser University , Burnaby , Canada
| | - Julio Montaner
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada.,b Division of AIDS, Department of Medicine , University of British Columbia , Vancouver , BC , Canada
| | - Evan Wood
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada.,b Division of AIDS, Department of Medicine , University of British Columbia , Vancouver , BC , Canada
| | - M-J Milloy
- a British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital , Vancouver , BC , Canada.,b Division of AIDS, Department of Medicine , University of British Columbia , Vancouver , BC , Canada
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105
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Viswanathan S, Detels R, Mehta SH, Macatangay BJC, Kirk GD, Jacobson LP. Level of adherence and HIV RNA suppression in the current era of highly active antiretroviral therapy (HAART). AIDS Behav 2015; 19:601-11. [PMID: 25342151 DOI: 10.1007/s10461-014-0927-4] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The need to achieve ≥95 % adherence to HAART for treatment effectiveness may be a barrier for universal initiation at early stages of HIV. Using longitudinal data collected from 2006 to 2011 from cohort studies of MSM (MACS) and IDUs (ALIVE study), we estimated the minimum adherence needed to achieve HIV RNA suppression (<50 copies/mL), defined as the level at which at least 80 % were virally suppressed, and the odds of suppression was not significantly different than that observed with ≥95 % adherence. In the MACS, ≥80 % suppression was observed with 80-84 % adherence and the odds ratio for suppression (vs. ≥95 % adherence) was 1.43 (0.61, 3.33). In the ALIVE study where <35 % were on newer drugs, only 71.4 % were suppressed among those who reported ≥95 % adherence. Although IDUs on older HAART regimens may need to be ≥95 % adherent, concerns related to non-adherence may be less of a barrier to initiation of modern HAART regimens.
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106
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Bojko MJ, Mazhnaya A, Makarenko I, Marcus R, Dvoriak S, Islam Z, Altice FL. "Bureaucracy & Beliefs": Assessing the Barriers to Accessing Opioid Substitution Therapy by People Who Inject Drugs in Ukraine. DRUGS-EDUCATION PREVENTION AND POLICY 2015; 22:255-262. [PMID: 27087758 DOI: 10.3109/09687637.2015.1016397] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIMS Opioid substitution therapy (OST) is an evidence-based HIV prevention strategy for people who inject drugs (PWIDs). Yet, only 2.7% of Ukraine's estimated 310,000 PWIDs receive it despite free treatment since 2004. The multi-level barriers to entering OST among opioid dependent PWIDs have not been examined in Ukraine. METHODS A multi-year mixed methods implementation science project included focus group discussions with 199 PWIDs in 5 major Ukrainian cities in 2013 covering drug treatment attitudes and beliefs and knowledge of and experiences with OST. Data were transcribed, translated into English and coded. Coded segments related to OST access, entry, knowledge, beliefs and attitudes were analyzed among 41 PWIDs who were eligible for but had never received OST. FINDINGS A number of programmatic and structural barriers were mentioned by participants as barriers to entry to OST, including compulsory drug user registration, waiting lists, and limited number of treatment slots. Participants also voiced strong negative attitudes and beliefs about OST, especially methadone. Their perceptions about methadone's side effects as well as the stigma of being a methadone client were expressed as obstacles to treatment. CONCLUSIONS Despite expressed interest in treatment, Ukrainian OST-naïve PWIDs evade OST for reasons that can be addressed through changes in program-level and governmental policies and social-marketing campaigns. Voiced OST barriers can effectively inform public health and policy directives related to HIV prevention and treatment in Ukraine to improve evidence-based treatment access and availability.
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Affiliation(s)
- Martha J Bojko
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, Connecticut, USA
| | - Alyona Mazhnaya
- ICF International HIV/AIDS Alliance in Ukraine, Kyiv, Ukraine
| | | | - Ruthanne Marcus
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, Connecticut, USA
| | - Sergii Dvoriak
- Ukrainian Institute for Public Health Policy, Kyiv, Ukraine
| | - Zahedul Islam
- ICF International HIV/AIDS Alliance in Ukraine, Kyiv, Ukraine
| | - Frederick L Altice
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, Connecticut, USA; Yale University School of Public Health, Division of Epidemiology of Microbial Diseases, New Haven, Connecticut, USA
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Tun W, Sheehy M, Broz D, Okal J, Muraguri N, Raymond HF, Musyoki H, Kim AA, Muthui M, Geibel S. HIV and STI prevalence and injection behaviors among people who inject drugs in Nairobi: results from a 2011 bio-behavioral study using respondent-driven sampling. AIDS Behav 2015; 19 Suppl 1:S24-35. [PMID: 25398417 PMCID: PMC4352193 DOI: 10.1007/s10461-014-0936-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
There is a dearth of evidence on injection drug use and associated HIV infections in Kenya. To generate population-based estimates of characteristics and HIV/STI prevalence among people who inject drugs (PWID) in Nairobi, a cross-sectional study was conducted with 269 PWID using respondent-driven sampling. PWID were predominantly male (92.5 %). An estimated 67.3 % engaged in at least one risky injection practice in a typical month. HIV prevalence was 18.7 % (95 % CI 12.3–26.7), while STI prevalence was lower [syphilis: 1.7 % (95 % CI 0.2–6.0); gonorrhea: 1.5 % (95 % CI 0.1–4.9); and Chlamydia: 4.2 % (95 % CI 1.2–7.8)]. HIV infection was associated with being female (aOR, 3.5; p = 0.048), having first injected drugs 5 or more years ago (aOR, 4.3; p = 0.002), and ever having practiced receptive syringe sharing (aOR, 6.2; p = 0.001). Comprehensive harm reduction programs tailored toward PWID and their sex partners must be fully implemented as part of Kenya’s national HIV prevention strategy.
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Affiliation(s)
- Waimar Tun
- HIV and AIDS Program, Population Council, 4301 Connecticut Avenue, NW, Suite 280, Washington, DC, 20008, USA,
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108
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Azim T, Bontell I, Strathdee SA. Women, drugs and HIV. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2015; 26 Suppl 1:S16-21. [PMID: 25277726 PMCID: PMC4498573 DOI: 10.1016/j.drugpo.2014.09.003] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/01/2014] [Accepted: 09/05/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND Women who use drugs, irrespective of whether these are injected or not, are faced with multiple issues which enhance their vulnerability to HIV. METHODS In this commentary, we explore the HIV risks and vulnerabilities of women who use drugs as well as the interventions that have been shown to reduce their susceptibility to HIV infection. RESULTS Women who inject drugs are among the most vulnerable to HIV through both unsafe injections and unprotected sex. They are also among the most hidden affected populations, as they are more stigmatized than their male counterparts. Many sell sex to finance their own and their partner's drug habit and often their partner exerts a significant amount of control over their sex work, condom use and injection practices. Women who use drugs all over the world face many different barriers to HIV service access including police harassment, judgmental health personnel and a fear of losing their children. CONCLUSION In order to enable these women to access life-saving services including needle-syringe and condom programs, opioid substitution therapy and HIV testing and treatment, it is essential to create a conducive environment and provide tailor-made services that are adapted to their specific needs.
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Affiliation(s)
- Tasnim Azim
- Centre for HIV and AIDS, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Mohakhali, Dhaka, Bangladesh.
| | - Irene Bontell
- Centre for HIV and AIDS, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Mohakhali, Dhaka, Bangladesh; Unit of Infectious Diseases, Department of Medicine Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Steffanie A Strathdee
- Division of Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
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Raboud J, Blitz S, Walmsley S, Thompson C, Rourke SB, Loutfy MR. Effect of Gender and Calendar Year on Time to and Duration of Virologic Suppression Among Antiretroviral-Naïve HIV-Infected Individuals Initiating Combination Antiretroviral Therapy. HIV CLINICAL TRIALS 2015; 11:340-50. [DOI: 10.1310/hct1106-340] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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110
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Nowgesic E, Meili R, Stack S, Myers T. The Indigenous Red Ribbon Storytelling Study: What does it mean for Indigenous peoples living with HIV and a substance use disorder to access antiretroviral therapy in Saskatchewan? CANADIAN JOURNAL OF ABORIGINAL COMMUNITY-BASED HIV/AIDS RESEARCH 2015; 7:27-40. [PMID: 27867444 PMCID: PMC5112028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Indigenous peoples living with HIV are less likely than non-Indigenous peoples living with HIV to access antiretroviral therapy; however, there is not enough contextual information surrounding this issue. The Indigenous Red Ribbon Storytelling Study was conducted in part to examine how Indigenous peoples living with HIV construct and understand their experiences accessing antiretroviral therapy. Our study design was critical Indigenous qualitative research, using the Behavioral Model of Health Services Use and community-based participatory research approaches. The study was conducted in partnership with Indigenous and non-Indigenous organizations. Study participants were adults from two Canadian cities. The study methods included 20 individual and two Indigenous sharing circle interviews, six participant observation sessions, a short survey and thematic analysis. Accessing antiretroviral therapy within the context of living with a substance use disorder was an overarching theme. Indigenous peoples living with HIV felt they had to choose between living with their active substance use disorder and accessing antiretroviral therapy. They felt misunderstood as a person living with a substance use disorder and often felt coerced into using antiretroviral therapy. Despite these challenges, they persevered as Indigenous peoples living with HIV and a substance use disorder. Further research on antiretroviral therapy access among Indigenous peoples living with HIV and a substance use disorder, particularly from the perspective of health service providers, is needed.
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Affiliation(s)
| | | | | | - Ted Myers
- Dalla Lana School of Public Health at the University of Toronto
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111
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Zaller N, Mazhnaya A, Larney S, Islam Z, Shost A, Prokhorova T, Rybak N, Flanigan T. Geographic variability in HIV and injection drug use in Ukraine: implications for integration and expansion of drug treatment and HIV care. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2015; 26:37-42. [PMID: 25304049 PMCID: PMC4465255 DOI: 10.1016/j.drugpo.2014.09.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 08/29/2014] [Accepted: 09/05/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND Ukraine has the highest HIV burden of any European country with much of the current HIV epidemic concentrated among people who inject drugs (PWIDs) and their sexual partners. Opiate substitution therapy (OST) is limited in Ukraine and expansion of OST is urgently needed to help stem the tide of the HIV epidemic. METHODS We accessed publicly available data in Ukraine in order to explore geographic variability with respect to prevalence of HIV, PWIDs and OST programmes. RESULTS The regions of Ukraine with the largest number of opioid dependent persons (the south and eastern portions of the country) correspond to the regions with the highest HIV prevalence and HIV incidence. The number of opioid PWIDs per 100,000 population as well as the number of all OST treatment slots per 100,000 varied significantly across the three HIV prevalence categories. Overall, the proportion of individuals receiving either methadone maintenance therapy (MMT) or buprenorphine maintenance therapy (BMT) was quite low: average across categories: 7.3% and 0.4%, respectively. Additionally, less than half of OST patients receiving MMT or BMT were HIV positive patients. CONCLUSION There is significant geographic variability in both numbers of HIV positive individuals and numbers of PWIDs across Ukraine, however, there may be a more concentrated epidemic among PWIDs in many regions of the country. Scale up of addiction treatment for PWID, especially OST, can have a significant impact on preventing injection related morbidity, such as HIV and HCV infection. Ukraine can learn from the mistakes other nations have made in denying critical treatment opportunities to PWID.
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Affiliation(s)
- Nickolas Zaller
- The Miriam Hospital, Providence, RI, United States; Brown Medical School, Providence, RI, United States.
| | | | - Sarah Larney
- National Drug and Alcohol Research Centre, University of New South Wales, Australia
| | - Zahed Islam
- The International HIV/AIDS Alliance, Kiev, Ukraine
| | - Alyona Shost
- The International HIV/AIDS Alliance, Kiev, Ukraine
| | | | - Natasha Rybak
- The Miriam Hospital, Providence, RI, United States; Brown Medical School, Providence, RI, United States
| | - Timothy Flanigan
- The Miriam Hospital, Providence, RI, United States; Brown Medical School, Providence, RI, United States
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High levels of heterogeneity in the HIV cascade of care across different population subgroups in British Columbia, Canada. PLoS One 2014; 9:e115277. [PMID: 25541682 PMCID: PMC4277297 DOI: 10.1371/journal.pone.0115277] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 11/23/2014] [Indexed: 01/22/2023] Open
Abstract
Background The HIV cascade of care (cascade) is a comprehensive tool which identifies attrition along the HIV care continuum. We executed analyses to explicate heterogeneity in the cascade across key strata, as well as identify predictors of attrition across stages of the cascade. Methods Using linked individual-level data for the population of HIV-positive individuals in BC, we considered the 2011 calendar year, including individuals diagnosed at least 6 months prior, and excluding individuals that died or were lost to follow-up before January 1st, 2011. We defined five stages in the cascade framework: HIV ‘diagnosed’, ‘linked’ to care, ‘retained’ in care, ‘on HAART’ and virologically ‘suppressed’. We stratified the cascade by sex, age, risk category, and regional health authority. Finally, multiple logistic regression models were built to predict attrition across each stage of the cascade, adjusting for stratification variables. Results We identified 7621 HIV diagnosed individuals during the study period; 80% were male and 5% were <30, 17% 30–39, 37% 40–49 and 40% were ≥50 years. Of these, 32% were MSM, 28% IDU, 8% MSM/IDU, 12% heterosexual, and 20% other. Overall, 85% of individuals ‘on HAART’ were ‘suppressed’; however, this proportion ranged from 60%–93% in our various stratifications. Most individuals, in all subgroups, were lost between the stages: ‘linked’ to ‘retained’ and ‘on HAART’ to ‘suppressed’. Subgroups with the highest attrition between these stages included females and individuals <30 years (regardless of transmission risk group). IDUs experienced the greatest attrition of all subgroups. Logistic regression results found extensive statistically significant heterogeneity in attrition across the cascade between subgroups and regional health authorities. Conclusions We found that extensive heterogeneity in attrition existed across subgroups and regional health authorities along the HIV cascade of care in B.C., Canada. Our results provide critical information to optimize engagement in care and health service delivery.
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Walsh N, Mijch A, Watson K, Wand H, Fairley CK, McNeil J, Crofts N, Maher L. HIV treatment outcomes among people who inject drugs in Victoria, Australia. BMC Infect Dis 2014; 14:707. [PMID: 25523753 PMCID: PMC4298908 DOI: 10.1186/s12879-014-0707-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 12/11/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND People who inject drugs (PWID) are a key population affected by HIV. We assessed the effectiveness of HIV treatment among a clinical cohort of people living with HIV (PLHIV) diagnosed and referred for community-based antiretroviral therapy (ART) in Victoria, Australia. METHODS HIV notification data from a central statewide registry were matched with HIV clinical data from two large HIV treatment centers in Melbourne. We used survival analysis and Cox proportional hazard models to estimate time to AIDS and death for PWID in HIV treatment, compared with non-injectors, in the period 1996-2008. RESULTS Of the 871 individuals, 93 (10.8%) had injecting as an exposure category and 671 (86%) had ever commenced ART. Adjusted analysis showed younger age, high initial CD4 cell count (>500 cells/mm(3)) or ever having a CD4 cell count >500/mm(3), and more recent calendar year of ART commencement were all associated with reduced hazards for AIDS and death, while older age, low initial CD4 cell count (<200/mm(3)), ever having a CD4 count <200/mm(3) (before or during treatment) and high initial viral load (>5 log10) were associated with increased risk of AIDS and death. PWID were no more likely to experience AIDS (HR 0.98 [0.54-1.80]) or death (HR 0.78 [0.18-3.42]) than non-injectors. CONCLUSION Survival of HIV-infected PWID on HIV treatment was equivalent to non-injectors. CD4 cell count, initial viral load, calendar year of commencing ART and age are more important determinants of AIDS and mortality than injecting status for in-treatment PLHIV in Victoria, Australia.
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Affiliation(s)
- Nick Walsh
- Department of Epidemiology and Preventive Medicine, Monash University, 89 Commercial Road, Melbourne, Victoria, 3004, Australia.
| | - Anne Mijch
- Department of Medicine, Monash University, Clayton, Victoria, 3065, Australia.
| | - Kerrie Watson
- Infection Prevention and Healthcare, Epidemiology Infectious Diseases and Microbiology Unit, Alfred Health, Melbourne, Victoria, 3004, Australia.
| | - Handan Wand
- The Kirby Institute, Wallace Wurth Building, UNSW Australia, Sydney, NSW, 2052, Australia.
| | - Christopher K Fairley
- University of Melbourne, Melbourne Sexual Health Centre, Melbourne Sexual Health Centre, 580 Swanston St, Carlton, Victoria, 3053, Australia.
| | - John McNeil
- School of Public Health and Preventive Medicine, Monash University, 89 Commercial Road, Melbourne, Victoria, 3004, Australia.
| | - Nick Crofts
- Nossal Institute for Global Health, 4th Floor, 161 Barry St, Carlton, VIC, 3010, Australia.
| | - Lisa Maher
- The Kirby Institute, Wallace Wurth Building, UNSW Australia, Sydney, NSW, 2052, Australia.
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Irvine MK, Chamberlin SA, Robbins RS, Myers JE, Braunstein SL, Mitts BJ, Harriman GA, Laraque F, Nash D. Improvements in HIV care engagement and viral load suppression following enrollment in a comprehensive HIV care coordination program. Clin Infect Dis 2014; 60:298-310. [PMID: 25301208 DOI: 10.1093/cid/ciu783] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Substantial evidence gaps remain regarding human immunodeficiency virus (HIV) intervention strategies that improve engagement in care (EiC) and viral load suppression (VLS). We assessed EiC and VLS before and after enrollment in a comprehensive intervention for persons at risk of poor HIV care outcomes. METHODS New York City's Ryan White Part A HIV Care Coordination Program (CCP), launched at 28 agencies in 2009, applies multiple strategies to promote optimal utilization of medical and social services. Using laboratory test records from an HIV surveillance registry, we examined pre-post outcomes among 3641 CCP clients enrolled before April 2011. For the year before and after enrollment, we assessed EiC (defined as ≥2 tests, ≥90 days apart, with ≥1 in each half-year) and VLS (defined as viral load [VL] ≤200 copies/mL on latest VL test in the second half of the year). We estimated relative risks (RRs), comparing pre- and postenrollment proportions achieving EiC and VLS. RESULTS Among newly diagnosed clients, 90.5% (95% confidence interval [CI], 87.9%-93.2%) and 66.2% (95% CI, 61.9%-70.6%) achieved EiC and VLS, respectively. Among previously diagnosed clients, EiC increased from 73.7% to 91.3% (RR = 1.24; 95% CI, 1.21-1.27) and VLS increased from 32.3% to 50.9% (RR = 1.58; 95% CI, 1.50-1.66). Clients without evidence of HIV care during the 6 months preenrollment contributed most to overall improvements. Pre-post improvements were robust, retaining statistical significance within most sociodemographic and clinical subgroups, and in 89% (EiC) and 75% (VLS) of CCP agencies. CONCLUSIONS Clients in comprehensive HIV care coordination for persons with evident barriers to care showed substantial and consistent improvement in short-term outcomes.
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Affiliation(s)
- Mary K Irvine
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | - Stephanie A Chamberlin
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | - Rebekkah S Robbins
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | - Julie E Myers
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene Division of Infectious Diseases, Department of Medicine, Columbia University Medical Center
| | - Sarah L Braunstein
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | - Beau J Mitts
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | - Graham A Harriman
- Bureau of HIV/AIDS Prevention and Control, New York City Department of Health and Mental Hygiene
| | | | - Denis Nash
- School of Public Health Hunter College, The City University of New York, New York
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Ferro EG, Weikum D, Vagenas P, Copenhaver MM, Gonzales P, Peinado J, Cabello R, Lama JR, Sanchez J, Altice FL. Alcohol use disorders negatively influence antiretroviral medication adherence among men who have sex with men in Peru. AIDS Care 2014; 27:93-104. [PMID: 25277252 DOI: 10.1080/09540121.2014.963013] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
As international guidelines increase access to antiretroviral therapy (ART) globally, ART adherence becomes increasingly important to achieve HIV treatment as prevention (TasP) goals. In the concentrated HIV epidemic among men who have sex with men (MSM) and transgendered women (TGW) in Lima, Peru, the independent correlates of ART nonadherence were examined to inform treatment intervention priorities. Cross sectional survey of HIV-infected MSM and TGW who are engaged in clinical care in Lima, Peru. From June to August 2012, 302 HIV-infected Peruvian MSM/TGW from three clinical care sites were recruited using convenience sampling to participate in a cross-sectional computer-assisted adherence survey. Several standardized screening measures associated with ART nonadherence were examined in order to determine the independent correlates of optimal (≥90%) and perfect (100%) adherence, which were assessed using logistic regression. Of the 302 participants recruited, 263 (87.1%) were prescribed ART. Among those prescribed ART, 229 (87.1%) reported optimal and 146 (55.5%) reported perfect adherence. The prevalence of alcohol use disorders (AUD; 43.2%), alcohol dependence (5.3%), recent drug use (6.0%), and depression (44.5%) was high, and most participants had some evidence of neurocognitive impairment. Meeting criteria for having an AUD and depression were collinear (p < 0.001). On multivariate analysis, having an AUD was inversely related and the only independent correlate of optimal (AOR = 0.427; 95% CI = 0.187-0.976) and perfect (AOR = 0.552; 95% CI = 0.327-0.930) ART adherence. AUDs are highly prevalent among Peruvian HIV-infected MSM and contribute significantly to ART nonadherence. These findings support the need for screening and treating underlying AUDs. In order to meet HIV TasP goals, evidence-based strategies targeting AUDs are likely to directly improve ART adherence and indirectly improve overall individual health, HIV treatment engagement, and reduce transmission to sexual partners among this vulnerable and disproportionally affected population.
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Affiliation(s)
- Enrico G Ferro
- a Section of Infectious Diseases, AIDS Program , Yale School of Medicine , New Haven , CT , USA
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Abstract
Few studies of pre-exposure prophylaxis (PrEP) to prevent HIV infection have focused on drug users. Between February to September 2013, we asked 351 opiate injectors entering detoxification treatment about HIV risk, knowledge about PrEP, and willingness to use a once daily PrEP pill under one of two randomly assigned effectiveness scenarios-40 % (low) or 90 % (high) effective in reducing HIV risk. Participants were 70 % male and 87 % non-Hispanic White. Only 7 % had heard of a drug to reduce HIV risk, yet once informed, 47 % would be willing to take such a pill [35 % of those in the low effectiveness scenario and 58 % in the high group (p < 0.001)]. Higher perceived HIV risk was associated with greater willingness to take medication. Increasing knowledge of PrEP and the rate of HIV reduction-effectiveness promised will influence its use among targeted high-risk drug users.
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Affiliation(s)
- Michael Stein
- General Medicine Research Unit, Butler Hospital, Alpert School of Medicine at Brown University, 345 Blackstone Blvd, Providence, RI, 02906, USA,
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117
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Langebeek N, Gisolf EH, Reiss P, Vervoort SC, Hafsteinsdóttir TB, Richter C, Sprangers MAG, Nieuwkerk PT. Predictors and correlates of adherence to combination antiretroviral therapy (ART) for chronic HIV infection: a meta-analysis. BMC Med 2014; 12:142. [PMID: 25145556 PMCID: PMC4148019 DOI: 10.1186/preaccept-1453408941291432] [Citation(s) in RCA: 166] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/01/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Adherence to combination antiretroviral therapy (ART) is a key predictor of the success of human immunodeficiency virus (HIV) treatment, and is potentially amenable to intervention. Insight into predictors or correlates of non-adherence to ART may help guide targets for the development of adherence-enhancing interventions. Our objective was to review evidence on predictors/correlates of adherence to ART, and to aggregate findings into quantitative estimates of their impact on adherence. METHODS We searched PubMed for original English-language papers, published between 1996 and June 2014, and the reference lists of all relevant articles found. Studies reporting on predictors/correlates of adherence of adults prescribed ART for chronic HIV infection were included without restriction to adherence assessment method, study design or geographical location. Two researchers independently extracted the data from the same papers. Random effects models with inverse variance weights were used to aggregate findings into pooled effects estimates with 95% confidence intervals. The standardized mean difference (SMD) was used as the common effect size. The impact of study design features (adherence assessment method, study design, and the United Nations Human Development Index (HDI) of the country in which the study was set) was investigated using categorical mixed effects meta-regression. RESULTS In total, 207 studies were included. The following predictors/correlates were most strongly associated with adherence: adherence self-efficacy (SMD = 0.603, P = 0.001), current substance use (SMD = -0.395, P = 0.001), concerns about ART (SMD = -0.388, P = 0.001), beliefs about the necessity/utility of ART (SMD = 0.357, P = 0.001), trust/satisfaction with the HIV care provider (SMD = 0.377, P = 0.001), depressive symptoms (SMD = -0.305, P = 0.001), stigma about HIV (SMD = -0.282, P = 0.001), and social support (SMD = 0.237, P = 0.001). Smaller but significant associations were observed for the following being prescribed a protease inhibitor-containing regimen (SMD = -0.196, P = 0.001), daily dosing frequency (SMD = -0.193, P = 0.001), financial constraints (SMD -0.187, P = 0.001) and pill burden (SMD = -0.124, P = 0.001). Higher trust/satisfaction with the HIV care provider, a lower daily dosing frequency, and fewer depressive symptoms were more strongly related with higher adherence in low and medium HDI countries than in high HDI countries. CONCLUSIONS These findings suggest that adherence-enhancing interventions should particularly target psychological factors such as self-efficacy and concerns/beliefs about the efficacy and safety of ART. Moreover, these findings suggest that simplification of regimens might have smaller but significant effects.
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Affiliation(s)
- Nienke Langebeek
- />Department of Internal Medicine, Rijnstate Hospital, Wagnerlaan 55, Arnhem, 6815 AD Netherlands
- />Department of Medical Psychology, Academic Medical Center, Meibergdreef 9, Amsterdam, 1105 AZ Netherlands
| | - Elizabeth H Gisolf
- />Department of Internal Medicine, Rijnstate Hospital, Wagnerlaan 55, Arnhem, 6815 AD Netherlands
| | - Peter Reiss
- />Division of Infectious Diseases, and Department of Global Health, Amsterdam Institute for Global Health and Development, Academic Medical Center, Meibergdreef 9, Amsterdam, 1105 AZ Netherlands
- />Stichting HIV Monitoring, Meibergdreef 9, Amsterdam, 1105 AZ Netherlands
| | - Sigrid C Vervoort
- />Department of Infectious Diseases, University Medical Center, Heidelberglaan 100, Utrecht, 3584 CX Netherlands
| | - Thóra B Hafsteinsdóttir
- />Department of Rehabilitation, Nursing Science and Sports medicine, University Medical Center, Heidelberglaan 100, Utrecht, 3584 CX Netherlands
| | - Clemens Richter
- />Department of Internal Medicine, Rijnstate Hospital, Wagnerlaan 55, Arnhem, 6815 AD Netherlands
| | - Mirjam AG Sprangers
- />Department of Medical Psychology, Academic Medical Center, Meibergdreef 9, Amsterdam, 1105 AZ Netherlands
| | - Pythia T Nieuwkerk
- />Department of Medical Psychology, Academic Medical Center, Meibergdreef 9, Amsterdam, 1105 AZ Netherlands
- />Department of Medical Psychology (J3-219-1), Academic Medical Center, Amsterdam, 1100 DE Netherlands
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Langebeek N, Gisolf EH, Reiss P, Vervoort SC, Hafsteinsdóttir TB, Richter C, Sprangers MAG, Nieuwkerk PT. Predictors and correlates of adherence to combination antiretroviral therapy (ART) for chronic HIV infection: a meta-analysis. BMC Med 2014. [PMID: 25145556 PMCID: PMC4148019 DOI: 10.1186/s12916-014-0142-1] [Citation(s) in RCA: 252] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Adherence to combination antiretroviral therapy (ART) is a key predictor of the success of human immunodeficiency virus (HIV) treatment, and is potentially amenable to intervention. Insight into predictors or correlates of non-adherence to ART may help guide targets for the development of adherence-enhancing interventions. Our objective was to review evidence on predictors/correlates of adherence to ART, and to aggregate findings into quantitative estimates of their impact on adherence. Methods We searched PubMed for original English-language papers, published between 1996 and June 2014, and the reference lists of all relevant articles found. Studies reporting on predictors/correlates of adherence of adults prescribed ART for chronic HIV infection were included without restriction to adherence assessment method, study design or geographical location. Two researchers independently extracted the data from the same papers. Random effects models with inverse variance weights were used to aggregate findings into pooled effects estimates with 95% confidence intervals. The standardized mean difference (SMD) was used as the common effect size. The impact of study design features (adherence assessment method, study design, and the United Nations Human Development Index (HDI) of the country in which the study was set) was investigated using categorical mixed effects meta-regression. Results In total, 207 studies were included. The following predictors/correlates were most strongly associated with adherence: adherence self-efficacy (SMD = 0.603, P = 0.001), current substance use (SMD = -0.395, P = 0.001), concerns about ART (SMD = -0.388, P = 0.001), beliefs about the necessity/utility of ART (SMD = 0.357, P = 0.001), trust/satisfaction with the HIV care provider (SMD = 0.377, P = 0.001), depressive symptoms (SMD = -0.305, P = 0.001), stigma about HIV (SMD = -0.282, P = 0.001), and social support (SMD = 0.237, P = 0.001). Smaller but significant associations were observed for the following being prescribed a protease inhibitor-containing regimen (SMD = -0.196, P = 0.001), daily dosing frequency (SMD = -0.193, P = 0.001), financial constraints (SMD -0.187, P = 0.001) and pill burden (SMD = -0.124, P = 0.001). Higher trust/satisfaction with the HIV care provider, a lower daily dosing frequency, and fewer depressive symptoms were more strongly related with higher adherence in low and medium HDI countries than in high HDI countries. Conclusions These findings suggest that adherence-enhancing interventions should particularly target psychological factors such as self-efficacy and concerns/beliefs about the efficacy and safety of ART. Moreover, these findings suggest that simplification of regimens might have smaller but significant effects. Electronic supplementary material The online version of this article (doi:10.1186/s12916-014-0142-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | - Pythia T Nieuwkerk
- Department of Medical Psychology, Academic Medical Center, Meibergdreef 9, Amsterdam 1105, AZ, Netherlands.
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119
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Prescription medication misuse among HIV-infected individuals taking antiretroviral therapy. J Subst Abuse Treat 2014; 48:56-61. [PMID: 25245428 DOI: 10.1016/j.jsat.2014.07.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 07/25/2014] [Accepted: 07/30/2014] [Indexed: 11/23/2022]
Abstract
HIV has become a highly treatable disease due to advances in antiretroviral therapy (ART). Additionally, HIV-infected individuals often take opiates, barbiturates, and benzodiazepines to treat co-occurring conditions, including pain and symptoms of HIV. We sought to examine prescription medication misuse by surveying 295 HIV-infected patients receiving ART. Participants answered questions about their demographics, alcohol and other drug use, psychiatric diagnoses, ART adherence and side effects, and quality of life. Eleven percent of our sample acknowledged prescription medication misuse. In regression analysis, prescription medication misusers were more likely to report any drinking to intoxication (OR=4.31, 95% CI: 1.35-13.76, p=0.013), reported greater severity of ART side effects (OR=1.05, 95% CI: 1.01-1.10, p=0.041), and demonstrated poorer cognitive functioning (OR=0.97, 95% CI: 0.94-0.99, p=0.048) compared to those who did not misuse prescription medications. Special care should be taken by medical providers before prescribing medications that may be abused or diverted. Patients should also be screened for aberrant use, even if not prescribed. ART side effects, cognitive deficits, and alcohol abuse may serve as risk factors or indicators of prescription medication misuse, and should be monitored.
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120
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Evaluation of multiple measures of antiretroviral adherence in the Eastern European country of Georgia. J Int AIDS Soc 2014; 17:18885. [PMID: 24721464 PMCID: PMC3983475 DOI: 10.7448/ias.17.1.18885] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 02/02/2014] [Accepted: 02/26/2014] [Indexed: 12/21/2022] Open
Abstract
Introduction There is little information on adherence to antiretroviral therapy (ART) in the Eastern European region. This prospective study evaluated multiple measures of adherence and their association with viral suppression among HIV patients in Georgia. Methods A prospective cohort study enrolled 100 consecutive antiretroviral-naïve adult (age ≥18 years) patients, who were followed for three months. Adherence was assessed by medication refill and three self-report measures (an AIDS Clinical Trial Group [ACTG] tool for four-day adherence, a visual analogue scale [VAS] and a rating task for 30-day adherence). The VAS represented a line anchored by 0 and 100% corresponding to the percentage of prescribed doses taken. The rating task asked patients to rate their ability to take all medications as prescribed, with responses categorized into six levels of adherence: very poor (0%), poor (20%), fair (40%), good (60%), very good (80%) and excellent (100%). Patients with adherence of ≥95% by medication refill, ACTG and VAS, and ≥80% by rating task, were defined as adherent. Results Of 100 patients enrolled, eight had missing data and were excluded from analysis. Among the remaining 92 patients, the median age was 39 years, and 70% were men. Major modes of HIV acquisition were injection drug use (IDU; 47.3%) and heterosexual contact (44.1%). The proportions of adherent patients were as follows: 68% by medication refill, 90% by ACTG questionnaire, 38% by VAS and 42% by rating task. On average, four months after commencing ART, 52 (56.5%) patients had a viral load <400 copies/ml and 26 (28.3%) patients had a viral load <50 copies/ml. Of 43 persons with a history of IDU, 22 (51.2%) reached a viral load of <400 copies/ml. In multivariate analysis, only refill adherence was a statistically significant predictor of viral suppression of <400 copies/ml: the risk ratio was 1.7 (95% CI: 1.1–2.8). Refill adherence, VAS and rating task were associated with viral suppression of <50 copies/ml. Non-IDUs were twice as likely to achieve viral load <50 copies/ml compared to IDUs. Refill adherence had the largest area under the receiver-operating characteristic curve for predicting viral suppression. Conclusions Medication refill adherence was the strongest predictor of viral suppression. IDUs can achieve optimal virologic outcomes, but may require additional adherence support.
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121
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Charania MR, Marshall KJ, Lyles CM, Crepaz N, Kay LS, Koenig LJ, Weidle PJ, Purcell DW. Identification of evidence-based interventions for promoting HIV medication adherence: findings from a systematic review of U.S.-based studies, 1996-2011. AIDS Behav 2014; 18:646-60. [PMID: 24043269 DOI: 10.1007/s10461-013-0594-x] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A systematic review was conducted to identify evidence-based interventions (EBIs) for increasing HIV medication adherence behavior or decreasing HIV viral load among persons living with HIV (PLWH). We conducted automated searches of electronic databases (i.e., MEDLINE, EMBASE, PsycINFO, CINAHL) and manual searches of journals, reference lists, and listservs. Interventions were eligible for the review if they were U.S.-based, published between 1996 and 2011, intended to improve HIV medication adherence behaviors of PLWH, evaluated the intervention using a comparison group, and reported outcome data on adherence behaviors or HIV viral load. Each intervention was evaluated on the quality of study design, implementation, analysis, and strength of findings. Of the 65 eligible interventions, 10 are EBIs. The remaining 55 interventions failed to meet the efficacy criteria primarily due to null findings, small sample sizes, or low retention rates. Research gaps and future directions for development of adherence EBIs are discussed.
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Abstract
OBJECTIVE To determine the potential of treatment as prevention for reducing HIV incidence among injecting drug users (IDU). METHODS Transmission dynamics of HIV as influenced by cART uptake and demographic changes were studied using an individual-based model. Parameters were based on data of the Amsterdam Cohort Study, and counterfactual treatment scenarios were examined for this city. Demography of the modeled population was also varied to allow for more general conclusions. RESULTS We estimated that over the complete HIV epidemic among IDU in Amsterdam the historic use of cART has led to only 2% less incidence. As individuals were treated from low CD4 cell counts, their decreased infectiousness was offset by increased infectious lifetime. Large reduction in incidence could result from a test and immediate treat strategy, with elimination of HIV occurring when the average time from infection to starting treatment was less than 2 months. However, substantial proportions of new infections were prevented only if the test and treat intervention was implemented within the first few years after HIV-epidemic onset, especially for a declining IDU population. Ignoring heterogeneity in risk-behavior led to overly optimistic expectations of the prevention effects of treatment. In general, treatment led to much greater reduction in incidence compared with stopping HIV-infected IDU from lending out syringes. CONCLUSION A test and immediate treat strategy for HIV among IDU could lead to great reductions in incidence. To fully eliminate the spread of HIV, treatment as prevention should be combined with other interventions, with behavioral intervention directed at those not yet HIV infected.
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HIV pre-exposure prophylaxis for people who inject drugs: a review of current results and an agenda for future research. J Int AIDS Soc 2014; 17:18899. [PMID: 24679634 PMCID: PMC3969508 DOI: 10.7448/ias.17.1.18899] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 02/03/2014] [Accepted: 02/12/2014] [Indexed: 02/01/2023] Open
Abstract
Introduction Studies examining the use of pre-exposure prophylaxis (PrEP) to prevent HIV transmission among people who inject drugs (PWIDs) have not been adequately summarized. Recently, the Bangkok Tenofovir Study has shown that PrEP may be effective at reducing new HIV infections among this high-risk group. This randomized controlled trial was the first study to specifically examine the efficacy of PrEP among PWIDs. In this review, we present the current state of evidence regarding the use of PrEP to prevent HIV infection in PWID populations, and set an agenda for future research to inform the most effective implementation of PrEP in the context of existing evidence-based HIV prevention strategies. Discussion Despite positive trial results confirming that PrEP may prevent HIV transmission among PWIDs, there remain many questions regarding the interpretation of these results, as well as obstacles to the implementation of PrEP regimens within highly diverse drug-using communities. Aside from the Bangkok Tenofovir Study, we identified only one other published study that has collected empirical data to inform the use of PrEP among PWIDs. The large gap in research regarding the use and implementation of PrEP for PWIDs signals the need for further research and attention. Conclusions We recommend that future research efforts focus on elucidating the generalizability of the Bangkok Tenofovir Study results in other injection drug–using populations, examining the willingness of PWIDs to use PrEP in diverse contexts, identifying barriers to adherence to PrEP regimens and determining the most effective ways to implement PrEP programmes within the context of existing evidence-based prevention strategies, including opioid substitution therapy and needle and syringe distribution programmes.
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Grelotti DJ, Closson EF, Smit JA, Mabude Z, Matthews LT, Safren SA, Bangsberg DR, Mimiaga MJ. Whoonga: potential recreational use of HIV antiretroviral medication in South Africa. AIDS Behav 2014; 18:511-8. [PMID: 23955659 DOI: 10.1007/s10461-013-0575-0] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Whoonga is a drug cocktail in South Africa rumored to contain illicit drugs and HIV antiretroviral (ARV) medication. Although its use may adversely impact adherence to HIV treatment and may have the potential to generate ARV resistance, there is a paucity of research characterizing whoonga. We learned of whoonga during semi-structured interviews about substance abuse and HIV risk at "club-events" known as inkwaris in an urban township of Durban, South Africa. Whoonga was an emerging theme spontaneously identified as a problem for the community by 17 out of 22 informants. Perceptions of whoonga suggest that it is highly addictive, contains ARVs (notably efavirenz), is used by individuals as young as 14, and poses a threat to the health and safety of those who use it, including increasing the risk of HIV infection. Our informants provide preliminary evidence of the dangers of whoonga and reinforce the need for further study.
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Affiliation(s)
- David J Grelotti
- Department of Epidemiology, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA,
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125
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Kader R, Seedat S, Govender R, Koch JR, Parry CD. Hazardous and harmful use of alcohol and/or other drugs and health status among South African patients attending HIV clinics. AIDS Behav 2014; 18:525-34. [PMID: 23921585 DOI: 10.1007/s10461-013-0587-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There is growing recognition of the influence of substance use, particularly alcohol use, on HIV disease progression. This study investigated how hazardous/harmful use of alcohol and drugs impacts the health status of 1503 patients attending HIV clinics. Of the sample, 37 % indicated hazardous/harmful drinking and 13 % indicated a drug problem. Hazardous/harmful use of alcohol and drugs was significantly related to health status, with participants using substances more likely to have TB-positive status (χ(2) = 4.30, p < 0.05), less likely to be on ARVs (χ(2) = 9.87, p < 0.05) and having lower CD4 counts (t = 4.01, p < 0.05). Structural equation modelling confirmed the centrality of hazardous/harmful use of alcohol as a direct and indirect determinant of disease progression. Based on these findings it is recommended that patients attending HIV clinics be routinely screened for problematic alcohol and/or drug use, with strong emphasis on ensuring ARV adherence in those with problematic alcohol use.
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Affiliation(s)
- R Kader
- Alcohol and Drug Abuse Research Unit, Medical Research Council, P.O. Box 19070, Tygerberg, Cape Town, 7505, South Africa,
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Lo YR, Kato M, Phanuphak N, Fujita M, Duc DB, Sopheap S, Pendse R, Yu D, Wu Z, Chariyalertsak S. Challenges and potential barriers to the uptake of antiretroviral-based prevention in Asia and the Pacific region. Sex Health 2014; 11:126-36. [DOI: 10.1071/sh13094] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 03/11/2014] [Indexed: 01/06/2023]
Abstract
Evidence has emerged over the past few years on the effectiveness of antiretroviral-based prevention technologies to prevent (i) HIV transmission while decreasing morbidity and mortality in HIV-infected persons, and (ii) HIV acquisition in HIV-uninfected individuals through pre-exposure prophylaxis (PrEP). Only few of the planned studies on treatment as prevention (TasP) are conducted in Asia. TasP might be more feasible and effective in concentrated rather than in generalised epidemics, as resources for HIV testing and antiretroviral treatment could focus on confined and much smaller populations than in the generalised epidemics observed in sub-Saharan Africa. Several countries such as Cambodia, China, Thailand and Vietnam, are now paving the way to success. Similar challenges arise for both TasP and PrEP. However, the operational issues for PrEP are amplified by the need for frequent retesting and ensuring adherence. This paper describes challenges for the implementation of antiretroviral-based prevention and makes the case that TasP and PrEP implementation research in Asia is much needed to provide insights into the feasibility of these interventions in populations where firm evidence of ‘real world’ effectiveness is still lacking.
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Bachireddy C, Soule MC, Izenberg JM, Dvoryak S, Dumchev K, Altice FL. Integration of health services improves multiple healthcare outcomes among HIV-infected people who inject drugs in Ukraine. Drug Alcohol Depend 2014; 134:106-114. [PMID: 24128379 PMCID: PMC3865106 DOI: 10.1016/j.drugalcdep.2013.09.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 09/16/2013] [Accepted: 09/17/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND People who inject drugs (PWID) experience poor outcomes and fuel HIV epidemics in middle-income countries in Eastern Europe and Central Asia. We assess integrated/co-located (ICL) healthcare for HIV-infected PWID, which despite international recommendations, is neither widely available nor empirically examined. METHODS A 2010 cross-sectional study randomly sampled 296 HIV-infected opioid-dependent PWID from two representative HIV-endemic regions in Ukraine where ICL, non-co-located (NCL) and harm reduction/outreach (HRO) settings are available. ICL settings provide onsite HIV, addiction, and tuberculosis services, NCLs only treat addiction, and HROs provide counseling, needles/syringes, and referrals, but no opioid substitution therapy (OST). The primary outcome was receipt of quality healthcare, measured using a quality healthcare indicator (QHI) composite score representing percentage of eight guidelines-based recommended indicators met for HIV, addiction and tuberculosis treatment. The secondary outcomes were individual QHIs and health-related quality-of-life (HRQoL). RESULTS On average, ICL-participants had significantly higher QHI composite scores compared to NCL- and HRO-participants (71.9% versus 54.8% versus 37.0%, p<0.001) even after controlling for potential confounders. Compared to NCL-participants, ICL-participants were significantly more likely to receive antiretroviral therapy (49.5% versus 19.2%, p<0.001), especially if CD4 ≤ 200 (93.8% versus 62.5% p<0.05); guideline-recommended OST dosage (57.3% versus 41.4%, p<0.05); and isoniazid preventive therapy (42.3% versus 11.2%, p<0.001). Subjects receiving OST had significantly higher HRQoL than those not receiving it (p<0.001); however, HRQoL did not differ significantly between ICL- and NCL-participants. CONCLUSIONS These findings suggest that OST alone improves quality-of-life, while receiving care in integrated settings collectively and individually improves healthcare quality indicators for PWID.
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Affiliation(s)
- Chethan Bachireddy
- Yale University School of Medicine, Department of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, USA
| | - Michael C. Soule
- Massachussetts General Hospital, Department of Psychiatry, Boston, USA
| | - Jacob M. Izenberg
- Yale University School of Medicine, Department of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, USA
| | - Sergey Dvoryak
- Ukrainian Institute on Public Health Policy, Kyiv, Ukraine
| | | | - Frederick L. Altice
- Yale University School of Medicine, Department of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, USA,Yale University School of Public Health, Division of Epidemiology of Microbial Diseases, New Haven, USA
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128
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Nishijima T, Gatanaga H, Komatsu H, Takano M, Ogane M, Ikeda K, Oka S. High prevalence of illicit drug use in men who have sex with men with HIV-1 infection in Japan. PLoS One 2013; 8:e81960. [PMID: 24339982 PMCID: PMC3858294 DOI: 10.1371/journal.pone.0081960] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 10/18/2013] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To examine the prevalence of illicit drug use among men who have sex with men (MSM) with HIV-1 infection in Japan, where the life-time prevalence of illicit drug use in the general population is only 2.9%. DESIGN A single-center cross-sectional study at a large HIV clinic in Tokyo, which treats approximately 15% of HIV-1 infected patients in Japan. METHODS The prevalence of illicit drug use and the association of characteristics and social demographics of the patients with illicit drug use were examined. Patients who visited the clinic for the first time from 2005 to 2010 were enrolled. Relevant variables were collected using a structured interview and from the medical records. Multivariate logistic regression analyses were applied to estimate the odds of association of MSM over non-MSM HIV-infected patients with illicit drug use. RESULTS 1,196 patients were enrolled. They were mostly Japanese men of relatively young age. Illicit drug use (including injection drugs) was reported by 35% of the patients (by 40% of MSM), and 4% were IDU while 5% were on methamphetamine. 2% of the population was arrested due to illicit drugs. MSM was significantly associated with illicit drug use (adjusted OR = 4.60; 95% CI, 2.88-7.36; p<0.01). Subgroup analysis of the patients stratified by three age groups (≤ 30, 31 to 40, and >40) showed that the odds of association of MSM with illicit drug use was the strongest in the youngest age group (≤ 30 years: adjusted OR = 7.56; 95% CI, 2.86-20.0; p<0.01), followed by the oldest (>40 years: adjusted OR = 6.15; 95% CI, 2.40-15.8; p<0.01), and the weakest in the group aged 31 to 40 (adjusted OR = 3.39; 95% CI, 1.73-6.63; p<0.01). CONCLUSIONS The prevalence of illicit drug use is high among MSM patients with HIV-1 infection in Japan. Effective intervention for illicit drug use in this population is warranted.
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Affiliation(s)
- Takeshi Nishijima
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Gatanaga
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
- * E-mail:
| | - Hirokazu Komatsu
- Department of Community Care, Saku Central Hospital, Nagano, Japan
| | - Misao Takano
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Miwa Ogane
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kazuko Ikeda
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shinichi Oka
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
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129
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McNairy ML, Deryabina A, Hoos D, El-Sadr WM. Antiretroviral therapy for prevention of HIV transmission: potential role for people who inject drugs in Central Asia. Drug Alcohol Depend 2013; 132 Suppl 1:S65-70. [PMID: 23880248 DOI: 10.1016/j.drugalcdep.2013.06.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 06/26/2013] [Accepted: 06/26/2013] [Indexed: 12/21/2022]
Abstract
Interest in the use of antiretroviral therapy (ART) for prevention stems from mounting evidence from research studies demonstrating that ART is associated with a decrease in sexual HIV transmission among serodiscordant couples and, perhaps, in other populations at risk. There is paucity of data on the efficacy of ART for prevention in key populations, including persons who inject drugs (PWID). In this paper, we examine the current status of HIV services for PWID in Central Asia, the use of ART by this population and explore ART for prevention for PWID in this context. We also discuss research and implementation questions with relevance to such a strategy in the region.
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Affiliation(s)
- Margaret L McNairy
- ICAP at Columbia University, Mailman School of Public Health, New York, NY, USA; Weill-Cornell Medical College, New York, NY, USA.
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130
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Vagenas P, Azbel L, Polonsky M, Kerimi N, Mamyrov M, Dvoryak S, Altice FL. A review of medical and substance use co-morbidities in Central Asian prisons: implications for HIV prevention and treatment. Drug Alcohol Depend 2013; 132 Suppl 1:S25-31. [PMID: 23932844 PMCID: PMC3825758 DOI: 10.1016/j.drugalcdep.2013.07.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 07/07/2013] [Accepted: 07/08/2013] [Indexed: 01/29/2023]
Abstract
BACKGROUND HIV incidence in Central Asia is rising rapidly. People who inject drugs (PWIDs) contribute greatest to the epidemic, with more than a quarter of all HIV cases being in the criminal justice system (CJS). This review assembled and aggregated recent data on drug-related health problems and respective healthcare services in the CJS of Central Asia and the Republic of Azerbaijan. METHODS Online databases and published literature (peer-reviewed and gray) were reviewed. Additionally, prison officials in the 6 countries were invited to participate in a survey and prison administrators from Kazakhstan, Kyrgyzstan and Tajikistan completed it. RESULTS The data on conditions and healthcare in Central Asian prisons are inconsistent and lack unbiased details. Reporting is primarily based on "official" disease registries, which markedly underestimate prevalence. Even these limited data, however, indicate that HIV prevalence and drug-related health problems are high, concentrated and, in some countries, rising rapidly in CJS. Only some of the range of HIV prevention interventions recommended by international organizations have been implemented in the region with two of the crucial interventions, needle and syringe exchange programs (NSP) and opioid substitution therapy (OST), only available in prisons in Kyrgyzstan, with Tajikistan implementing a pilot NSP and contemplating introduction of prison-based OST. CONCLUSIONS Despite deficiencies in routine health reporting and insufficient HIV sentinel surveillance undertaken in prisons, the data available on the concentration of HIV within at-risk populations in prisons indicate a necessity to broaden the range and increase the scale the scale of HIV prevention and treatment services.
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Affiliation(s)
- Panagiotis Vagenas
- Yale School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
| | - Lyuba Azbel
- Yale School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
| | - Maxim Polonsky
- Yale School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
| | - Nina Kerimi
- United Nations Office on Drugs and Crime (UNODC), Regional Office for Central Asia, Tashkent, Uzbekistan
| | - Mirlan Mamyrov
- United Nations Office on Drugs and Crime (UNODC), Regional Office for Central Asia, Tashkent, Uzbekistan
| | - Sergey Dvoryak
- Ukrainian Institute on Public Health Policy, Kyiv, Ukraine
| | - Frederick L. Altice
- Yale School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
,Yale School of Public Health, Department of Epidemiology of Microbial Diseases, New Haven, CT, USA
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131
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Izenberg JM, Bachireddy C, Soule M, Kiryazova T, Dvoryak S, Altice FL. High rates of police detention among recently released HIV-infected prisoners in Ukraine: implications for health outcomes. Drug Alcohol Depend 2013; 133:154-60. [PMID: 23769160 PMCID: PMC3786010 DOI: 10.1016/j.drugalcdep.2013.05.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/14/2013] [Accepted: 05/14/2013] [Indexed: 12/28/2022]
Abstract
BACKGROUND Ukraine's HIV epidemic, primarily affecting people who inject drugs (PWID), is expanding and transitioning despite free opioid substitution therapy (OST) and antiretroviral therapy (ART), two effective ways to reduce HIV transmission. Police detention of PWID not resulting in a formal charge or imprisonment is common, but its prevalence and impact on health are not known. METHOD HIV-infected individuals (N=97) released from prison within one year were recruited and surveyed in two HIV-endemic Ukrainian cities about post-release police detention experiences. Data on the frequency of police detention, related adverse events, and impact on OST and ART continuity were collected, and correlates of detention were examined using logistic regression. RESULTS Detention responses were available for 94 (96.9%) participants, of which 55 (58.5%) reported police detentions (mean=9.4 per person-year). For those detained while prescribed OST (N=28) and ART (N=27), medication interruption was common (67.9% and 70.4%, respectively); 23 of 27 participants prescribed OST (85.2%) were detained en route to/from OST treatment. Significant independent correlates of detention without charges included post-release ART prescription (AOR 4.98, p=0.021), current high-risk injection practices (AOR 5.03, p=0.011), male gender (AOR 10.88, p=0.010), and lower lifetime months of imprisonment (AOR 0.99, p=0.031). CONCLUSIONS HIV-infected individuals recently released from prison in Ukraine experience frequent police detentions, resulting in withdrawal symptoms, confiscation of syringes, and interruptions of essential medications, including ART and OST. Structural changes are urgently needed to reduce police detentions in order to control HIV transmission and improve both individual and public health.
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Affiliation(s)
- Jacob M. Izenberg
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
| | - Chethan Bachireddy
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA
| | - Michael Soule
- Massachussetts General Hospital, Department of Psychiatry, Boston, MA, USA
| | | | - Sergey Dvoryak
- Ukrainian Institute on Public Health Policy, Kyiv, Ukraine
| | - Frederick L. Altice
- Yale University School of Medicine, Section of Infectious Diseases, AIDS Program, New Haven, CT, USA,Yale University School of Public Health, Division of Epidemiology of Microbial Diseases, New Haven, CT, USA
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132
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Sharma H, Sanchez TW, Neamati N, Detorio M, Schinazi RF, Cheng X, Buolamwini JK. Synthesis, docking, and biological studies of phenanthrene β-diketo acids as novel HIV-1 integrase inhibitors. Bioorg Med Chem Lett 2013; 23:6146-51. [PMID: 24091080 DOI: 10.1016/j.bmcl.2013.09.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 08/29/2013] [Accepted: 09/03/2013] [Indexed: 11/18/2022]
Abstract
In the present study we report the synthesis of halogen-substituted phenanthrene β-diketo acids as new HIV-1 integrase inhibitors. The target phenanthrenes were obtained using both standard thermal- and microwave-assisted synthesis. 4-(6-Chlorophenanthren-2-yl)-2,4-dioxobutanoic acid (18) was the most active compound of the series, inhibiting both 3'-end processing (3'-P) and strand transfer (ST) with IC50 values of 5 and 1.3 μM, respectively. Docking studies revealed two predominant binding modes that were distinct from the binding modes of raltegravir and elvitegravir, and suggest a novel binding region in the IN active site. Moreover, these compounds are predicted not to interact significantly with some of the key amino acids (Q148 and N155) implicated in viral resistance. Therefore, this series of compounds can further be investigated for a possible chemotype to circumvent resistance to clinical HIV-1 IN inhibitors.
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Affiliation(s)
- Horrick Sharma
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 847 Monroe Avenue, Suite 327, Memphis 38163, USA
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133
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Kato M, Granich R, Bui DD, Tran HV, Nadol P, Jacka D, Sabin K, Suthar AB, Mesquita F, Lo YR, Williams B. The potential impact of expanding antiretroviral therapy and combination prevention in Vietnam: towards elimination of HIV transmission. J Acquir Immune Defic Syndr 2013; 63:e142-9. [PMID: 23714739 PMCID: PMC3814627 DOI: 10.1097/qai.0b013e31829b535b] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Accepted: 03/22/2013] [Indexed: 12/20/2022]
Abstract
BACKGROUND Few studies have assessed the effects of antiretroviral therapy (ART) to prevent HIV transmission in Asian HIV epidemics. Vietnam has a concentrated HIV epidemic with the highest prevalence among people who inject drugs. We investigated the impact of expanded HIV testing and counseling (HTC) and early ART, combined with other prevention interventions on HIV transmission. METHODS A deterministic mathematical model was developed using HIV prevalence trends in Can Tho province, Vietnam. Scenarios included offering periodic HTC and immediate ART with and without targeting subpopulations and examining combined strategies with methadone maintenance therapy and condom use. RESULTS From 2011 to 2050, maintaining current interventions will incur an estimated 18,115 new HIV infections and will cost US $22.1 million (reference scenario). Annual HTC and immediate treatment, if offered to all adults, will reduce new HIV infections by 14,513 (80%) and will cost US $76.9 million. Annual HTC and immediate treatment offered only to people who inject drugs will reduce new infections by 13,578 (75%) and will cost only US $23.6 million. Annual HTC and immediate treatment for key populations, combined with scale-up of methadone maintenance therapy and condom use, will reduce new infections by 14,723 (81%) with similar costs (US $22.7 million). This combination prevention scenario will reduce the incidence to less than 1 per 100,000 in 14 years and will result in a relative cost saving after 19 years. CONCLUSIONS Targeted periodic HTC and immediate ART combined with other interventions is cost-effective and could lead to potential elimination of HIV in Can Tho.
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Affiliation(s)
- Masaya Kato
- World Health Organization Vietnam Country Office, Hanoi, Vietnam
| | - Reuben Granich
- World Health Organization HIV/AIDS Department, Geneva, Switzerland
| | - Duong D. Bui
- Vietnam Authority of HIV/AIDS Control, Ministry of Health, Hanoi, Vietnam
| | | | - Patrick Nadol
- US Center for Disease Prevention and Control Vietnam Country Office, Hanoi, Vietnam
| | - David Jacka
- World Health Organization Vietnam Country Office, Hanoi, Vietnam
| | - Keith Sabin
- World Health Organization Vietnam Country Office, Hanoi, Vietnam
| | | | - Fabio Mesquita
- World Health Organization Vietnam Country Office, Hanoi, Vietnam
| | - Ying Ru Lo
- World Health Organization Regional Office for the Western Pacific Manila, Philippines; and
| | - Brian Williams
- South African Centre for Epidemiological Modelling and Analysis, Geneva, Switzerland
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134
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Nishijima T, Gatanaga H, Komatsu H, Takano M, Ogane M, Ikeda K, Oka S. Illicit drug use is a significant risk factor for loss to follow up in patients with HIV-1 infection at a large urban HIV clinic in Tokyo. PLoS One 2013; 8:e72310. [PMID: 23951307 PMCID: PMC3737188 DOI: 10.1371/journal.pone.0072310] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 07/09/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Loss to follow up (LTFU) is an important prognostic factor in patients with HIV-1 infection. The impact of illicit drug use on LTFU of patients with HIV-1 infection is unknown in Japan. METHODS A single center observational study was conducted to elucidate the impact of illicit drug use on LTFU at a large HIV clinic in Tokyo. LTFU was defined as those who discontinued their visits to the clinic for at least 12 months and were not known to be under the care of other facilities or have died within 12 months of their last visit. Patients who first visited the clinic between January 2005 and August 2010 were enrolled. Information on illicit drug use was collected in a structured interview and medical charts. Comparison of the effects of illicit drug use and no use on LTFU was conducted by uni- and multi-variate Cox hazards models as the primary exposure. RESULTS The study subjects were 1,208 patients, mostly Japanese men, of relatively young age, and infected through homosexual contact. A total of 111 patients (9.2%) were LTFU (incidence: 24.9 per 1,000 person-years). Among illicit drug users and non users, 55 (13.3%) and 56 (7.1%) patients, respectively, were LTFU, with incidence of 35.7 and 19.2 per 1,000 person-years, respectively. Uni- and multi-variate analyses showed that illicit drug use was a significant risk for LTFU (HR=1.860; 95% CI, 1.282-2.699; p=0.001) (adjusted HR=1.544; 95% CI, 1.028-2.318; p=0.036). Multivariate analysis also identified young age, high CD4 count, no antiretroviral therapy, and no health insurance as risk factors for LTFU. CONCLUSIONS The incidence of LTFU among illicit drug users was almost twice higher than that among non users. Effective intervention for illicit drug use in this population is warranted to ensure proper treatment and prevent the spread of HIV.
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Affiliation(s)
- Takeshi Nishijima
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
| | - Hiroyuki Gatanaga
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
- * E-mail:
| | - Hirokazu Komatsu
- Department of Community Care, Saku Central Hospital, Nagano, Japan
| | - Misao Takano
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Miwa Ogane
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kazuko Ikeda
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shinichi Oka
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
- Center for AIDS Research, Kumamoto University, Kumamoto, Japan
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135
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Semaan S, Leinhos M, Neumann MS. Public health strategies for prevention and control of HSV-2 in persons who use drugs in the United States. Drug Alcohol Depend 2013; 131:182-97. [PMID: 23647730 DOI: 10.1016/j.drugalcdep.2013.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2012] [Revised: 03/21/2013] [Accepted: 03/21/2013] [Indexed: 02/06/2023]
Abstract
BACKGROUND Herpes simplex virus type 2 (HSV-2) affects HIV acquisition, transmission, and disease progression. Effective medications for genital herpes and for HIV/AIDS exist. Parenteral transmission of HIV among persons who inject drugs is decreasing. Reducing sexual transmission of HIV and HSV-2 among persons who use drugs (PWUD; i.e., heroin, cocaine, "speedball", crack, methamphetamine through injection or non-injection) necessitates relevant services. METHODS We reviewed HSV-2 sero-epidemiology and HSV-2/HIV associations in U.S.-based studies with PWUD and the general literature on HSV-2 prevention and treatment published between 1995 and 2012. We used the 6-factor Kass framework to assess relevant HSV-2 public health strategies and services in terms of their goals and effectiveness; identification of, and minimization of burdens and concerns; fair implementation; and fair balancing of benefits, burdens, and concerns. RESULTS Eleven studies provided HSV-2 serologic test results. High HSV-2 sero-prevalence (range across studies 38-75%) and higher sero-prevalence in HIV-infected PWUD (97-100% in females; 61-74% in males) were reported. Public health strategies for HSV-2 prevention and control in PWUD can include screening or testing; knowledge of HSV-2 status and partner disclosure; education, counseling, and psychosocial risk-reduction interventions; treatment for genital herpes; and HIV antiretroviral medications for HSV-2/HIV co-infected PWUD. CONCLUSIONS HSV-2 sero-prevalence is high among PWUD, necessitating research on development and implementation of science-based public health interventions for HSV-2 infection and HSV-2/HIV co-infections, including research on effectiveness and cost-effectiveness of such interventions, to inform development and implementation of services for PWUD.
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Affiliation(s)
- Salaam Semaan
- Centers for Disease Control and Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Office of the Director, 1600 Clifton Road, NE, E-07, Atlanta, GA 30333, United States.
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136
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Reif S, Proeschold-Bell RJ, Yao J, Legrand S, Uehara A, Asiimwe E, Quinlivan EB. Three types of self-efficacy associated with medication adherence in patients with co-occurring HIV and substance use disorders, but only when mood disorders are present. J Multidiscip Healthc 2013; 6:229-37. [PMID: 23836979 PMCID: PMC3699252 DOI: 10.2147/jmdh.s44204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Adherence with medication regimens for human immunodeficiency virus (HIV) is a life-saving behavior for people with HIV infection, yet adherence is challenging for many individuals with co-occurring substance use and/or mood disorders. Medication-taking self-efficacy, which is the confidence that one can take one’s medication as prescribed, is associated with better adherence with HIV medication. However, little is known about the influence that other kinds of self-efficacy have on adherence with HIV medication, especially among HIV-infected individuals with co-occurring substance use and/or mood disorders. We sought to examine the relationship between adherence with HIV medication among substance users and three specific kinds of self-efficacy, ie, one’s confidence that one can communicate with medical providers, get support, and manage one’s mood. We further sought to examine whether symptoms of depression and anxiety moderate these relationships. Methods Patients were recruited from three HIV clinics in the southeastern United States as part of an integrated study of treatment for HIV and substance use. Results We interviewed 154 patients with HIV and substance use who reported taking HIV medications. Based on symptoms of depression and anxiety using the Patient Health Questionnaire-9 and the Hospital Anxiety and Depression Scale-Anxiety, 63% had probable depression and/or anxiety. Higher levels of self-efficacy in provider communication (β = 3.86, P < 0.01), getting needed support (β = 2.82, P < 0.01), and mood management (β = 2.29, P < 0.05) were related to better self-reported adherence with HIV medication among study participants with probable depression and/or anxiety. The three kinds of self-efficacy were not associated with medication adherence among participants with HIV and substance use only. Conclusion In the search for mutable factors to improve medication adherence among individuals triply diagnosed with HIV, substance use, and mood disorders, these findings support previous research indicating the benefit of enhancing self-efficacy, and further point to three specific kinds of self-efficacy that may benefit medication adherence, ie, provider communication, getting support, and mood management.
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Affiliation(s)
- Susan Reif
- Duke Center for Health Policy and Inequalities Research, Duke University, Durham, NC, USA
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137
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Reznick OG, McCartney K, Gregorich SE, Zack B, Feaster DJ. An ecosystem-based intervention to reduce HIV transmission risk and increase medication adherence among inmates being released to the community. JOURNAL OF CORRECTIONAL HEALTH CARE 2013; 19:178-93. [PMID: 23657796 DOI: 10.1177/1078345813486442] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
HIV+ inmates reentering their communities are at increased risk for poor health outcomes and for transmitting HIV. This article reports on a randomized trial comparing an ecosystem-based intervention and an individually focused intervention for reducing HIV transmission risk and improving medication adherence. Reincarceration was considered as a secondary variable. Both groups decreased sexual risk behavior over the 12-month follow-up period. Unexpectedly, the ecosystem intervention group was less likely to be taking medication or to be adherent and more likely to have been reincarcerated. Failure to demonstrate a significant advantage of the ecosystem intervention may have resulted from the difficulty of engaging family and other ecosystem members in the intervention. Implications for developing and applying interventions for this population are discussed.
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Affiliation(s)
- Olga Grinstead Reznick
- Department of Medicine, Center for AIDS Prevention Studies, University of California San Francisco, CA, USA
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138
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Parsons JT, Kowalczyk WJ, Botsko M, Tomassilli J, Golub SA. Aggregate versus day level association between methamphetamine use and HIV medication non-adherence among gay and bisexual men. AIDS Behav 2013; 17:1478-87. [PMID: 23553345 DOI: 10.1007/s10461-013-0463-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Methamphetamine use is associated with HIV infection, especially among gay and bisexual men. Methamphetamine use contributes to disease progression both directly, by increasing viral load and damaging the immune system, and indirectly, by decreasing medication adherence. Research examining the association of methamphetamine use and non-adherence has traditionally compared groups of users and nonusers on adherence, compared methamphetamine use between participants above or below some threshold level of adherence (e.g. >90 % dose adherence), or examined aggregate relationships. Using Timeline Follow-back procedures, the present study examined aggregate, threshold, and day-level associations of methamphetamine use with non-adherence in 210 HIV-positive gay and bisexual methamphetamine-using men. Methamphetamine use was not associated with adherence behavior at the aggregate-level, but methamphetamine use on a given day was associated with 2.3 times the odds of non-adherence on that day. Threshold results were equivocal. These data suggest that the methamphetamine and non-adherence relationship is complicated: non-adherence is more likely to occur on days in which methamphetamine is used, but participants reported more non-adherence days in which methamphetamine was not used. This seeming paradox generates questions about the selection of analytical techniques and has important implications for behavioral interventions targeting substance use and adherence among HIV-positive individuals.
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Lieveld FI, van Vlerken LG, Siersema PD, van Erpecum KJ. Patient adherence to antiviral treatment for chronic hepatitis B and C: a systematic review. Ann Hepatol 2013. [PMID: 23619254 DOI: 10.1016/s1665-2681(19)31000-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
INTRODUCTION Poor adherence to treatment for various chronic diseases is a frequent phenomenon. Current guidelines for the treatment of chronic hepatitis B (HBV) and hepatitis C (HCV) recommend optimal adherence, since it has been suggested that poor adherence is associated with an increased risk of virological failure. We aimed to give an overview of studies exploring adherence to combination treatment (PEG-interferon plus ribavirin) for HCV and nucleos(t)ide analogues for HBV. Material and methods. A systematic review was conducted using the databases PubMed, Embase, Cochrane Library and Web of Knowledge. Search terms included "adherence" or "compliance" combined with "hepatitis B", "hepatitis C" or "viral hepatitis". RESULTS The final selection included 19 studies (13 HCV, 6 HBV). Large differences in patient numbers and adherence assessment methods were found between the various studies. For HCV mean adherence varied from 27 to 97%, whereas the proportion of patients with ≥ 80% adherence varied from 27 to 96%. Mean adherence reported in HBV studies ranged from 81 to 99%, with 66 to 92% of patients being 100% adherent. For both HCV and HBV studies, the highest adherence rates were reported in studies using self-report whereas lower adherence rates were reported in studies using pharmacy claims. Poor adherence to treatment was associated with an increased risk of virological failure. CONCLUSION Non-adherence to treatment in chronic viral hepatitis is not a frequent phenomenon. However, given the increased risk of virological failure in poorly adherent patients, clinicians should routinely address adherence issues in all patients treated for chronic viral hepatitis.
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Affiliation(s)
- Faydra I Lieveld
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, the Netherlands
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140
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The potential uses of preexposure prophylaxis for HIV prevention among people who inject drugs. Curr Opin HIV AIDS 2013; 7:563-8. [PMID: 23076122 DOI: 10.1097/coh.0b013e328358e49e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
PURPOSE OF REVIEW Oral preexposure prophylaxis (PrEP) has shown HIV preventive efficacy for several key populations at risk for HIV infection including MSM and heterosexual men and women in HIV serodiscordant relationships. An efficacy trial of daily oral tenofovir among people who inject drugs (IDU) is underway in Thailand. RECENT FINDINGS Although efficacy data is pending, there is emerging biological and public health plausibility data suggesting the utility of PrEP as an effective component of combination HIV prevention for IDU. Drawing from studies characterizing adherence to antiretroviral therapy for IDU, there are a range of scientific and operational considerations for the potential use of PrEP for IDU. We review here the available literature on the potential use of PrEP for IDU, barriers to uptake and adherence, and potential implementation science questions, which could address, and potently increase, the effectiveness of this intervention. SUMMARY IDU remain the most underserved population in the HIV response worldwide, and have a marked gap in prevention services, making PrEP a potentially promising addition to the prevention toolkit for people who use drugs and, for those already living with HIV infection, for their spouses and other sexual partners.
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141
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Batchelder AW, Brisbane M, Litwin AH, Nahvi S, Berg KM, Arnsten JH. "Damaging what wasn't damaged already": psychological tension and antiretroviral adherence among HIV-infected methadone-maintained drug users. AIDS Care 2013; 25:1370-4. [PMID: 23406479 DOI: 10.1080/09540121.2013.766303] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Active drug use among HIV-infected persons is associated with poor adherence to highly active antiretroviral therapy (HAART) and suboptimal treatment outcomes. To understand adherence experiences among HIV-infected drug users, we conducted semistructured interviews with 15 participants in a randomized controlled trial evaluating the efficacy of directly observed HAART delivered in methadone maintenance clinics. Interviews were recorded, transcribed, and thematically analyzed. We identified negative and positive psychological themes associated with both drug use and adherence. Participants described tension between negative feelings (denial, shame, and perceived isolation) and positive feelings (acceptance, motivation, empowerment, and perceived connectedness), and they associated this tension with their own drug using and adherence behaviors. Sustained antiretroviral therapy adherence may require increased emphasis on understanding the psychological experience of HIV-infected drug users.
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Affiliation(s)
- A W Batchelder
- a Division of General Internal Medicine , Albert Einstein College of Medicine and Montefiore Medical Center , Bronx , NY , USA
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142
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Laisaar KT, Uusküla A, Sharma A, DeHovitz JA, Amico KR. Developing an adherence support intervention for patients on antiretroviral therapy in the context of the recent IDU-driven HIV/AIDS epidemic in Estonia. AIDS Care 2013; 25:863-73. [PMID: 23391132 DOI: 10.1080/09540121.2013.764393] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
There is limited data on and experience with interventions for antiretroviral therapy (ART) adherence support for patients on ART in Eastern Europe. We sought to identify a feasible adherence support intervention for delivery amongst HIV-positive adults receiving care in Estonia, where the HIV/AIDS epidemic has been mainly concentrated among injection drug users (IDUs). Our application of intervention mapping (IM) strategies used existing literature, formative research and multidisciplinary team input to produce a brief clinic-based intervention entitled the Situated Optimal Adherence Intervention Estonia (sOAI Estonia) which uses both Next-Step Counseling (NSC) and Information-Motivation-Behavioral Skills (IMB) Model approach to facilitate integration of ART into the context and demands of daily life. We present the intervention development process, the resulting sOAI Estonia approach, and describe a randomized controlled trial (RCT) which is under way to evaluate the intervention (results due in spring 2013).
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143
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Blackstone K, Woods SP, Weber E, Grant I, Moore DJ. Memory-based strategies for antiretroviral medication management: an evaluation of clinical predictors, adherence behavior awareness, and effectiveness. AIDS Behav 2013; 17:74-85. [PMID: 22968399 DOI: 10.1007/s10461-012-0308-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
"Forgetting" is the most commonly endorsed reason for missing an antiretroviral therapy (ART) dose, yet little is known about the prevalence, predictors, and effectiveness of the mnemonic strategies to support ART adherence. The current study assessed 28 self-reported memory-based medication strategies in 233 HIV-infected individuals with 30-day ART adherence measured via the medication event monitoring system. Participants endorsed using multiple (8.7 ± 5.6) strategies with the most common being internally-driven. More frequent strategy use was uniquely associated with affective distress, dependent daily functioning, higher non-ART pill burden, and poorer ART adherence. Individuals who used strategies frequently, but perceived them as minimally effective, had more affective, physical, and functional distress. More frequent strategy use was associated with worse ART adherence and was unrelated to perceived effectiveness. Primary reliance on internally-based mnemonic strategies may reflect a lack of awareness of adherence behaviors and may be insufficient to support optimal ART adherence in vulnerable populations.
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144
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Adherence to antiretroviral medications for HIV pre-exposure prophylaxis: lessons learned from trials and treatment studies. Am J Prev Med 2013; 44:S91-8. [PMID: 23253769 DOI: 10.1016/j.amepre.2012.09.047] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 09/09/2012] [Accepted: 09/19/2012] [Indexed: 11/23/2022]
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145
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Campbell ANC, Tross S, Calsyn DA. Substance use disorders and HIV/AIDS prevention and treatment intervention: research and practice considerations. SOCIAL WORK IN PUBLIC HEALTH 2013; 28:333-48. [PMID: 23731423 PMCID: PMC3694750 DOI: 10.1080/19371918.2013.774665] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Social workers are often on the front lines of the HIV/AIDS epidemic delivering prevention education and interventions, offering or linking individuals to HIV testing, and working to improve treatment access, retention, and adherence, especially among vulnerable populations. Individuals with substance use disorders face additional challenges to reducing sexual and drug risk behaviors, as well as barriers to testing, treatment, and antiretroviral therapy adherence. This article presents current data on HIV transmission and research evidence on prevention and intervention with substance abusers and highlights how individual social workers can take advantage of this knowledge in practice and through adoption and implementation within organizations.
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Affiliation(s)
- Aimee N C Campbell
- Department of Psychiatry, Columbia University, New York State Psychiatric Institute, New York, NY 10032, USA.
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146
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Bulgiba A, Mohammed UY, Chik Z, Lee C, Peramalah D. How well does self-reported adherence fare compared to therapeutic drug monitoring in HAART? Prev Med 2013; 57 Suppl:S34-6. [PMID: 23313585 DOI: 10.1016/j.ypmed.2013.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Accepted: 01/02/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of the study was to determine how well self-reported adherence fares compared to therapeutic drug monitoring in monitoring HAART adherence. METHODS We administered a validated self-reported adherence (SRA) questionnaire to 925 HIV patients on HAART in a large Malaysian hospital from 2010 to 11. We also performed Therapeutic Drug monitoring (TDM) by concurrently collecting and testing blood samples for Efavirenz, Nevirapine and Lamivudine using Liquid Chromatography/Mass Spectrometry. We compared the SRA against the TDM results. Sensitivity, specificity, positive (PPV) and negative predictive (NPV) and diagnostic accuracy values were computed for each drug. RESULTS Self-reported adherence (SRA) over-estimates adherence by between 6 and 10 percentage points compared to therapeutic drug monitoring (TDM). SRA is highly sensitive with sensitivity exceeding 0.90 but is not very specific (0.56-0.63). PPV for SRA ranged between 0.76 (Lamivudine) and 0.84 (Efavirenz) while NPV ranged between 0.78 (Lamivudine) and 0.81 (Efavirenz). Overall diagnostic accuracy ranged between 0.76 (Lamivudine) and 0.84 (Nevirapine). CONCLUSION Self-reported adherence is a surprisingly accurate instrument for measuring HAART adherence compared to TDM and can be reliably used in practice in resource-poor settings.
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Affiliation(s)
- Awang Bulgiba
- Julius Centre University of Malaya, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Malaysia.
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147
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Glombiewski JA, Nestoriuc Y, Rief W, Glaesmer H, Braehler E. Medication adherence in the general population. PLoS One 2012; 7:e50537. [PMID: 23272064 PMCID: PMC3525591 DOI: 10.1371/journal.pone.0050537] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 10/26/2012] [Indexed: 12/01/2022] Open
Abstract
Background Adherence to medication is low in specific populations who need chronic medication. However, adherence to medication is also of interest in a more general fashion, independent of specific populations or side effects of particular drugs. If clinicians and researchers expect patients to show close to full adherence, it is relevant to know how likely the achievement of this goal is. Population based rates can provide an estimate of efforts needed to achieve near complete adherence in patient populations. The objective of the study was to collect normative data for medication nonadherence in the general population. Methods and Findings We assessed 2,512 persons (a representative sample of German population). Adherence was measured by Rief Adherence Index. We also assessed current medication intake and side effects. We found that at least 33% of Germans repeatedly fail to follow their doctor's recommendations regarding pharmacological treatments and only 25% of Germans describe themselves as fully adherent. Nonadherence to medication occurs more often in younger patients with higher socioeconomic status taking short-term medications than in older patients with chronic conditions. Experience with medication side effects was the most prominent predictor of nonadherence. Conclusions The major strengths of our study are a representative sample and a novel approach to assess adherence. Nonadherece seems to be commonplace in the general population. Therefore adherence cannot be expected per se but needs special efforts on behalf of prescribers and public health initiatives. Nonadherence to medication should not only be considered as a drug-specific behaviour problem, but as a behaviour pattern that is independent of the prescribed medication.
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Affiliation(s)
- Julia A Glombiewski
- University of Marburg, Department of Clinical Psychology and Psychotherapy, Marburg, Germany.
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148
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CampBinford M, Kahana SY, Altice FL. A systematic review of antiretroviral adherence interventions for HIV-infected people who use drugs. Curr HIV/AIDS Rep 2012; 9:287-312. [PMID: 22936463 PMCID: PMC3495269 DOI: 10.1007/s11904-012-0134-8] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
HIV-infected persons who use drugs (PWUDs) are particularly vulnerable for suboptimal combination antiretroviral therapy (cART) adherence. A systematic review of interventions to improve cART adherence and virologic outcomes among HIV-infected PWUDs was conducted. Among the 45 eligible studies, randomized controlled trials suggested directly administered antiretroviral therapy, medication-assisted therapy (MAT), contingency management, and multi-component, nurse-delivered interventions provided significant improved short-term adherence and virologic outcomes, but these effects were not sustained after intervention cessation. Cohort and prospective studies suggested short-term increased cART adherence with MAT. More conclusive data regarding the efficacy on cART adherence and HIV treatment outcomes using cognitive behavioral therapy, motivational interviewing, peer-driven interventions and the integration of MAT into HIV clinical care are warranted. Of great concern was the virtual lack of interventions with sustained post-intervention adherence and virologic benefits. Future research directions, including the development of interventions that promote long-term improvements in adherence and virologic outcomes, are discussed.
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Affiliation(s)
| | | | - Frederick L. Altice
- Yale University School of Medicine, New Haven, Connecticut, USA
- Yale University School of Public Health, New Haven, Connecticut, USA
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149
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Nachega JB, Uthman OA, Anderson J, Peltzer K, Wampold S, Cotton MF, Mills EJ, Ho YS, Stringer JS, McIntyre JA, Mofenson LM. Adherence to antiretroviral therapy during and after pregnancy in low-income, middle-income, and high-income countries: a systematic review and meta-analysis. AIDS 2012; 26:2039-52. [PMID: 22951634 DOI: 10.1097/qad.0b013e328359590f] [Citation(s) in RCA: 342] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To estimate antiretroviral therapy (ART) adherence rates during pregnancy and postpartum in high-income, middle-income, and low-income countries. DESIGN Systematic review and meta-analysis. METHODS MEDLINE, EMBASE, SCI Web of Science, NLM Gateway, and Google scholar databases were searched. We included all studies reporting adherence rates as a primary or secondary outcome among HIV-infected pregnant women. Two independent reviewers extracted data on adherence and study characteristics. A random-effects model was used to pool adherence rates; sensitivity, heterogeneity, and publication bias were assessed. RESULTS Of 72 eligible articles, 51 studies involving 20 153 HIV-infected pregnant women were included. Most studies were from United States (n = 14, 27%) followed by Kenya (n = 6, 12%), South Africa (n = 5, 10%), and Zambia (n = 5, 10%). The threshold defining good adherence to ART varied across studies (>80, >90, >95, 100%). A pooled analysis of all studies indicated a pooled estimate of 73.5% [95% confidence interval (CI) 69.3-77.5%] of pregnant women who had adequate (>80%) ART adherence. The pooled proportion of women with adequate adherence levels was higher during the antepartum (75.7%, 95% CI 71.5-79.7%) than during postpartum (53.0%, 95% CI 32.8-72.7%; P = 0.005). Selected reported barriers for nonadherence included physical, economic and emotional stresses, depression (especially postdelivery), alcohol or drug use, and ART dosing frequency or pill burden. CONCLUSION Our findings indicate that only 73.5% of pregnant women achieved optimal ART adherence. Reaching adequate ART adherence levels was a challenge in pregnancy, but especially during the postpartum period. Further research to investigate specific barriers and interventions to address them is urgently needed globally.
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150
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Rosen MI, Black AC, Arnsten JH, Simoni JM, Wagner GJ, Goggin K, Remien RH, Golin CE, Wang Y, Bangsberg D, Liu HH. ART adherence changes among patients in community substance use treatment: a preliminary analysis from MACH14. AIDS Res Ther 2012; 9:30. [PMID: 23057423 PMCID: PMC3485617 DOI: 10.1186/1742-6405-9-30] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 09/28/2012] [Indexed: 11/10/2022] Open
Abstract
Background Opiate substitution treatment has been associated with better adherence to lifesaving antiretroviral medications, but the impact of other substance abuse treatment on adherence is unknown. Findings In this study, 215 patients who had been in adherence-focused research studies provided electronically-measured adherence data and a measure of whether the patient had recently been in substance abuse treatment. Recent engagement in substance abuse treatment was independently associated with significantly higher adherence, after covarying for recent substance use and other factors potentially affecting adherence. Conclusions The findings suggest that substance abuse treatment is associated with better adherence. Potential mechanisms by which substance abuse treatment improves adherence, such as more stability or more future-orientation, require further study.
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