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1.
Clin Infect Dis ; 76(1): 134-143, 2023 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-36484300

RESUMO

BACKGROUND: Timely, accurate adherence data may support oral pre-exposure prophylaxis (PrEP) success and inform prophylaxis choice. We evaluated a Food and Drug Administration (FDA)-approved digital health feedback system (DHFS) with ingestible-sensor-enabled (IS) tenofovir-disoproxil-fumarate plus emtricitabine (Truvada®) in persons starting oral PrEP. METHODS: Human immunodeficiency virus (HIV)-negative adults were prescribed IS-Truvada® with DHFS for 12 weeks to observe medication taking behavior. Baseline demographics, urine toxicology, and self-report questionnaires were obtained. Positive detection accuracy and adverse events were computed as percentages, with Kaplan Meier Estimate for persistence-of-use. In participants persisting ≥28 days, adherence patterns (taking and timing) were analyzed, and mixed-effects logistic regression modeled characteristics associated with treatment adherence. RESULTS: Seventy-one participants were enrolled, mean age 37.6 years (range 18-69), 90.1% male, 77.5% White, 33.8% Hispanic, 95.8% housed, and 74.6% employed. Sixty-three participants (88.7%) persisted ≥28 days, generating 4987 observation days, average 79.2 (29-105). Total confirmed doses were 86.2% (95% confidence interval [CI] 82.5, 89.4), decreasing over time, odds ratio (OR) 0.899 (95% CI .876, .923) per week, P < .001; 79.4% (95% CI 66.7%, 87.3%) of participants had ≥80% adherence. Pattern analysis showed days without confirmed doses clustered (P = .003); regular dose timing was higher among participants with ≥80% confirmed doses (0.828, 95% CI .796 to .859) than among those with <80% (0.542, 95% CI95 .405 to .679) P < .001. In multi-predictor models, better adherence was associated with older age, OR 1.060 (95% CI 1.033, 1.091) per year, P < .001; negative vs positive methamphetamine screen, OR 5.051 (95% CI 2.252, 11.494), P < .001. CONCLUSIONS: DHFS with IS-Truvada® distinguished adherent persons from those potentially at risk of prophylactic failure. Ongoing methamphetamine substance use may impact oral PrEP success.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Metanfetamina , Profilaxia Pré-Exposição , Adulto , Masculino , Humanos , Adolescente , Adulto Jovem , Pessoa de Meia-Idade , Idoso , Feminino , Combinação Emtricitabina e Fumarato de Tenofovir Desoproxila , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Emtricitabina/uso terapêutico , Adesão à Medicação , Homossexualidade Masculina
2.
AIDS Behav ; 26(1): 205-217, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34287756

RESUMO

Pregnant women in sub-Saharan Africa are at high risk of HIV acquisition and require effective methods to prevent HIV. In a cohort of pregnant women offered Pre-exposure prophylaxis (PrEP), we evaluate the relationship between internalized and anticipated stigma and PrEP initiation at first antenatal visit, 3-month continuation and adherence using multivariable logistic regression. High internalized and anticipated PrEP stigma are associated with lower PrEP care initiation at first antenatal visit (aOR internalized stigma = 0.06; 95% CI = 0.03-0.11 and aOR anticipated stigma = 0.55; 95% CI = 0.31-1.00) compared to women with low reported stigma, after controlling for covariates. Women whose partners have not been tested for HIV or whose serostatus remains unknown have 1.6-times odds of PrEP retention at 3-months compared to women whose partners have been tested (aOR = 1.60; 95% CI = 1.02-2.52) after adjusting for covariates. PrEP counseling and maternal PrEP interventions must consider individual- and relational-level interventions to overcome anticipated PrEP stigma and other barriers to PrEP initiation and adherence.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Fármacos Anti-HIV/uso terapêutico , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Gravidez , Gestantes , África do Sul
3.
Transfusion ; 61(12): 3488-3492, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34617611

RESUMO

BACKGROUND: In 2020, of 110,000 blood donors screened for HIV exposure two individuals were identified who were viral RNA-positive but seronegative. One of the donors, borderline negative in a pooled screening test for HIV RNA, utilized antiretroviral drugs as post-exposure, pre-donation prophylaxis. The kinetics of subsequent HIV seropositivity in both donors are described. STUDY DESIGN AND METHODS: Both donors were recalled and interviewed, and blood was obtained at intervals for HIV antibodies and RNA testing. RESULTS: One donor used antiretroviral prophylaxis for 30 days due to a relationship with an HIV-positive partner. In follow-up samples, seroconversion was noted at 70 days, and viral RNA was detected at 105 days, after blood donation. In contrast, the other donor seroconverted in <25 days and the appearance and titer of HIV RNA was in accordance with the typical pre-seroconversion window. CONCLUSION: The use of anti-viral prophylaxis by blood donors in the acute phase of HIV infection delays seroconversion. A 6-month deferral in blood donation after HIV prophylaxis, as currently recommended in Brazil, would have been sufficient in this case to mitigate the risk of transfusion-transmitted HIV. Ultimately, improvement in donor compliance with selection procedures for blood donation is needed to optimize blood safety.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Soropositividade para HIV , HIV-1 , Doadores de Sangue , Infecções por HIV/diagnóstico , Infecções por HIV/prevenção & controle , HIV-1/genética , Humanos , Cinética , RNA Viral , Soroconversão
4.
Int J Mol Sci ; 21(24)2020 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-33321835

RESUMO

Development of new, safe, and effective microbicides to prevent human immunodeficiency virus HIV sexual transmission is needed. Unfortunately, most microbicides proved ineffective to prevent the risk of HIV-infection in clinical trials. We are working with G2-S16 polyanionic carbosilane dendrimer (PCD) as a new possible vaginal topical microbicide, based on its short reaction times, wide availability, high reproducibility, and quantitative yields of reaction. G2-S16 PCD exerts anti-HIV activity at an early stage of viral replication, by blocking gp120/CD4/CCR5 interaction, and providing a barrier against infection for long periods of time. G2-S16 PCD was stable at different pH values, as well as in the presence of seminal fluids. It maintained the anti-HIV activity against R5/X4 HIV over time, did not generate any type of drug resistance, and retained the anti-HIV effect when exposed to semen-enhanced viral infection. Importantly, G2-S16 PCD did not modify vaginal microbiota neither in vitro or in vivo. Histopathological examination did not show vaginal irritation, inflammation, lesions, or damage in the vaginal mucosa, after administration of G2-S16 PCD at different concentrations and times in female mice and rabbit animal models. Based on these promising data, G2-S16 PCD could become a good, safe, and readily available candidate to use as a topical vaginal microbicide against HIV.


Assuntos
Alcanossulfonatos/uso terapêutico , Fármacos Anti-HIV/uso terapêutico , Dendrímeros/uso terapêutico , Infecções por HIV/prevenção & controle , Compostos de Organossilício/uso terapêutico , Administração Intravaginal , Alcanossulfonatos/administração & dosagem , Alcanossulfonatos/efeitos adversos , Animais , Fármacos Anti-HIV/administração & dosagem , Fármacos Anti-HIV/efeitos adversos , Dendrímeros/administração & dosagem , Dendrímeros/efeitos adversos , Avaliação Pré-Clínica de Medicamentos , Feminino , Infecções por HIV/transmissão , Humanos , Masculino , Compostos de Organossilício/administração & dosagem , Compostos de Organossilício/efeitos adversos
5.
Cureus ; 16(3): e56524, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38646268

RESUMO

Introduction Sharp object injuries in the medical field present a considerable occupational hazard for healthcare workers (HCWs), encompassing a spectrum of consequences from immediate discomfort to enduring health consequences. These injuries may expose HCWs to potential infections. Despite efforts to control sharp object injuries in healthcare environments, they are present at every stage involving using or disposing of medical sharp instruments. In Jordan, limited research has focused on sharp object injuries, with most data included from studies concentrating on practicing nurses or nursing students. Consequently, further research is necessary to comprehend the causes behind the high sharp object injury rate and the insufficient knowledge of safety practices and preventive guidelines. Objectives This study was conducted to investigate the impact of sharp object injuries on HCWs, underlying causes, and potential consequences causes of needlestick injuries. To highlight perspective and preventive imperatives. Methods and patients This retrospective institutional-based cross-sectional chart analysis was conducted by reviewing all sharp object injuries report sheets and extracting data directly from these reports for analysis. The study encompassed all reported cases occurring between 2018 and 2023. All the participants' data handling was accomplished according to the Declaration of Helsinki (2013) and the Health Insurance Portability and Accountability (HIPAA) Acts.  Results A total of 146 self-reported hospital workers were included in the study. Within the final cohort, 52.73% of the participants were male (77/146), with an average age at diagnosis of 38.6±7.87 years (ranging from 20 to 52 years). Conversely, females comprised 47.27% of the cohort population (69/146) and had an average age at diagnosis of 34.73±6.73 years (ranging from 19 to 47 years). The age group 20-29 years was the most prominent age group, statistical analysis of age and gender data revealed significant differences. The overall prevalence of sharp object injuries was 11.83%, indicating that a sizable portion of HCWs is at risk of exposure to bloodborne pathogens. Among the different professional categories, Physicians constituted the majority of sharp object injuries reported victims in 41 cases (28.08%), followed by nurses in 38 cases (26.02%). Statistical analysis of the profession's data revealed significant differences (P<0.001). Notably, sharp object injuries were most reported in wards. The leading procedures that caused sharp object injuries were identified as during needle recapping in 53 instances (36.30%), then followed by medical waste treatment in 32 cases (21.92%). The left hand was the most affected body part, reported in 83 cases (56.84%). All injured individuals reported the incident promptly. No seroconversions were documented within the reviewed cases during the study period. Conclusion Injuries caused by sharp objects persist as a significant danger for hospital employees, posing immediate harm and long-term health risks linked to bloodborne pathogens. The findings stress the continuous responsibility of healthcare institutions to prioritize staff safety by addressing the root causes of sharp object injuries and fostering reporting and prevention cultures. Underreporting reasons are diverse, encompassing factors like time constraints, fear of consequences, and the misconception of injury insignificance.

6.
Eur J Pharm Biopharm ; 191: 219-234, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37669727

RESUMO

Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome (HIV/ AIDS) and unplanned pregnancy affect female reproductive health globally. A single product providing a dual purpose of HIV prophylaxis and contraception may improve adherence to the therapy. Thus, we formulated a female-centric multipurpose prevention technology (MPT) comprising of nanoparticle loaded vaginal gel formulation acting as a contraceptive and microbicide. Eudragit® S100 nanoparticles of Atazanavir sulphate (ATZ; antiviral) and Fluoxetine hydrochloride (FLX; repurposed spermicide) were prepared for pH dependent drug release and loaded in carrageenan and HPMC K200M gel. The particle size of ATZ and FLX nanoparticles was 396.7 ± 20.64 nm and 226.5 ± 2.08 nm respectively. The in vitro release of the gel formulation in simulated seminal fluid (pH 7.6) showed 96.16% and 95.98% release of ATZ and FLX respectively at the end of 8 h. The in vitro anti-HIV and spermicidal activity of the formulation was above 80% for low drug concentrations. In vivo studies on murine model showed no signs of inflammation or vaginal epithelial injury. Curcumin based imaging confirmed the retention of the formulation in the reproductive tract of mice with minimal leakage. Nanoparticles in gel enabled non-invasive and localised delivery with minimal side effects and can be an effective prophylactic therapy.


Assuntos
Infecções por HIV , Nanopartículas , Espermicidas , Gravidez , Feminino , Humanos , Animais , Camundongos , HIV , Gravidez não Planejada , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Concentração de Íons de Hidrogênio
7.
J Int AIDS Soc ; 26(1): e26052, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36604316

RESUMO

INTRODUCTION: Infant HIV prophylaxis with broadly neutralizing anti-HIV antibodies (bNAbs) could provide long-acting protection against vertical transmission. We sought to estimate the potential clinical impact and cost-effectiveness of hypothetical bNAb prophylaxis programmes for children known to be HIV exposed at birth in three sub-Saharan African settings. METHODS: We conducted a cost-effectiveness analysis using the CEPAC-Pediatric model, simulating cohorts of infants from birth through death in Côte d'Ivoire, South Africa and Zimbabwe. These settings were selected to reflect a broad range of HIV care cascade characteristics, antenatal HIV prevalence and budgetary constraints. We modelled strategies targeting bNAbs to only WHO-designated "high-risk" HIV-exposed infants (HR-HIVE) or to all HIV-exposed infants (HIVE). We compared four prophylaxis approaches within each target population: standard of care oral antiretroviral prophylaxis (SOC), and SOC plus bNAbs at birth (1-dose), at birth and 3 months (2-doses), or every 3 months throughout breastfeeding (Extended). Base-case model inputs included bNAb efficacy (60%/dose), effect duration (3 months/dose) and costs ($60/dose), based on published literature. Outcomes included paediatric HIV incidence and incremental cost-effectiveness ratios (ICERs) calculated from discounted life expectancy and lifetime HIV-related costs. RESULTS: The model projects that bNAbs would reduce absolute infant HIV incidence by 0.3-2.2% (9.6-34.9% relative reduction), varying by country, prophylaxis approach and target population. In all three settings, HR-HIVE-1-dose would be cost-saving compared to SOC. Using a 50% GDP per capita ICER threshold, HIVE-Extended would be cost-effective in all three settings with ICERs of $497/YLS in Côte d'Ivoire, $464/YLS in South Africa and $455/YLS in Zimbabwe. In all three settings, bNAb strategies would remain cost-effective at costs up to $200/dose if efficacy is ≥30%. If the bNAb effect duration were reduced to 1 month, the cost-effective strategy would become HR-HIVE-1-dose in Côte d'Ivoire and Zimbabwe and HR-HIVE-2-doses in South Africa. Findings regarding the cost-effectiveness of bNAb implementation strategies remained robust in sensitivity analyses regarding breastfeeding duration, maternal engagement in postpartum care, early infant diagnosis uptake and antiretroviral treatment costs. CONCLUSIONS: At current efficacy and cost estimates, bNAb prophylaxis for HIV-exposed children in sub-Saharan African settings would be a cost-effective intervention to reduce vertical HIV transmission.


Assuntos
Infecções por HIV , HIV-1 , Recém-Nascido , Humanos , Lactente , Feminino , Criança , Gravidez , Anticorpos Amplamente Neutralizantes/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Infecções por HIV/diagnóstico , Análise Custo-Benefício , Antirretrovirais/uso terapêutico , Anticorpos Anti-HIV , Côte d'Ivoire , Transmissão Vertical de Doenças Infecciosas/prevenção & controle
8.
Viruses ; 14(10)2022 10 08.
Artigo em Inglês | MEDLINE | ID: mdl-36298769

RESUMO

Prevention of HIV acquisition by blood transfusion from its emergence to the present day is reviewed, and current challenges are delineated. The experience of Fundação Pró-Sangue/Hemocentro de São Paulo, Brazil, is highlighted in the quest for improvements in blood safety and the evolution of increasingly sensitive and specific screening tests. Concerns and establishing stringent criteria in the screening of potential blood donors are emphasized, and the current criteria for identifying and deferring candidates at high risk of acquiring sexually transmitted diseases are summarized. Future challenges relate to the identification of donors with unreported use of antiretroviral drugs for prophylaxis against possible HIV exposure or for treatment of an HIV infection whose viral expression is undetectable by current analyses. There is a need to better understand the motivation of HIV-exposed donors and to educate them about the risk of transfusion-mediated HIV transmission despite having low or undetectable viral loads. In situations in which traditional HIV RNA or antibody detection assays remain negative, more sensitive analyses are needed to identify potential donors at risk for HIV transmission.


Assuntos
Infecções por HIV , Transtornos Relacionados ao Uso de Substâncias , Humanos , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Brasil/epidemiologia , Doadores de Sangue , Transfusão de Sangue , RNA
9.
Expert Opin Ther Pat ; 30(3): 195-208, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31944142

RESUMO

Introduction: Studies presented in the patent applications demonstrate that a new integrase strand transfer inhibitor cabotegravir might be used as long-acting antiretroviral formulation or delivery system that reduces dosing frequency and may therefore increase adherence and thus pre-exposure prophylaxis (PrEP) and treatment efficacy against HIV. As announced in 2019, the developer ViiV Healthcare seeks US and EU approval of long-acting, injectable HIV treatment.Area covered: This review covers all the patent applications published until October 2019 with cabotegravir in the examples or claim section of the patent application document. The patent applications cover drug substance synthesis, solid-state forms, therapeutic applications, in vitro and in vivo efficacy as well as the potential formulations of cabotegravir alone or in combination with other anti-HIV agents.Expert opinion: The results from multiple clinical studies suggest that cabotegravir can be used as PrEP agent and treatment agent against HIV. Multiple studies use cabotegravir in combination with other anti-HIV agents such as rilpivirine. Cabotegravir in combination with rilpivirine is an interesting therapeutic, due to the possibility of formulating long-acting formulation with dosing interval of every 4 weeks or less, thus reducing daily pill burden and improving patient's compliance.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Infecções por HIV/tratamento farmacológico , Piridonas/administração & dosagem , Animais , Fármacos Anti-HIV/farmacologia , Quimioterapia Combinada , Humanos , Adesão à Medicação , Patentes como Assunto , Profilaxia Pré-Exposição , Piridonas/farmacologia , Rilpivirina/administração & dosagem
10.
J Int AIDS Soc ; 22(8): e25370, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31456348

RESUMO

INTRODUCTION: Questions remain whether HIV pre-exposure prophylaxis (PrEP) can be translated into a successful public health intervention, leading to a decrease in population-level HIV incidence. We use examples from HIV treatment and contraceptives to discuss expectations for PrEP uptake, adherence, and persistence and their combined impact on the epidemic. DISCUSSION: Targets for PrEP uptake must be based on the local HIV epidemic and will depend on appropriate estimates of the key populations at risk for HIV. However, there is evidence that targets, once established, can successfully be met and that uptake may increase with awareness. Messaging around adherence should include that daily adherence is the goal (except for those MSM for whom event-driven dosing is a good fit), but perfect adherence should not be a barrier. Ideally, clients persist on PrEP for as long as they are at risk for HIV. While PrEP will be most effective when coverage is focused on high-risk populations, normalizing rather than stigmatizing PrEP will be highly beneficial. CONCLUSIONS: While many challenges to PrEP implementation exist, we focused on the three key steps of uptake, adherence and persistence as measurable processes that can lead to improved coverage and decreased HIV incidence.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/prevenção & controle , Profilaxia Pré-Exposição , Adulto , Fármacos Anti-HIV/administração & dosagem , Anticoncepcionais , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Incidência , Masculino , Adesão à Medicação , Profilaxia Pré-Exposição/estatística & dados numéricos , Fatores de Risco
11.
BMC Res Notes ; 12(1): 586, 2019 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-31533837

RESUMO

OBJECTIVE: The aim of this study was to explore the prevalence of congenital HIV infection of neonates at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) between 2015 and 2017, as well as compare the HIV PCR positive and HIV PCR negative neonates. RESULTS: A total number of 1443 HIV exposed neonates was examined for the study period out of a total of 5029 admissions (HIV exposure 28.6%) The study found that the rate of HIV transmission at birth was 2.52%. The majority of infants had low birth weight and were also born prematurely. These results show that, despite the introduction of the extended mother to child transmission programme, HIV transmission is high.


Assuntos
Auditoria Clínica/estatística & dados numéricos , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Centros de Atenção Terciária , Auditoria Clínica/métodos , Auditoria Clínica/normas , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Lactente , Recém-Nascido , Doenças do Recém-Nascido/diagnóstico , Doenças do Recém-Nascido/epidemiologia , Doenças do Recém-Nascido/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Masculino , Triagem Neonatal/métodos , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Estudos Retrospectivos , África do Sul/epidemiologia
12.
Contraception ; 97(3): 277-284, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29055782

RESUMO

OBJECTIVE: High rates of sexually transmitted infections (STIs) and unintended pregnancy suggest a role for multipurpose prevention technologies (MPTs) designed to combine contraception and infection prophylaxis into one unified method. This study aims to determine factors associated with interest in MPTs among US women. STUDY DESIGN: We administered a national cross-sectional survey via MTurk. Eligibility criteria included female gender, age 18-29 years, residence in the USA, and sexual activity with a male partner in the past three months. In total, 835 surveys were suitable for analysis. Bivariable and multivariable logistic regressions were performed to determine factors associated with interest in MPTs. RESULTS: Eighty-three percent of women were interested in MPTs. Factors associated with interest included oral sex in the past three months (aOR 1.87, 95% CI 1.07, 3.53), recent use of oral contraceptive pills (OCPs; aOR 1.78, 95% CI 1.08, 2.93), HIV test within one year (aOR 2.10, 95% CI 1.29, 3.40), and increased STI worry score (aOR 1.98, 95% CI 1.36, 2.86). No use of contraception in the past three months was associated with decreased interest in MPTs (aOR 0.31, 95% CI 0.17, 0.58). HIV risk factors including race were not associated with MPT interest. CONCLUSION: Our data show that young, sexually active, US women are interested in MPTs. Women who used contraception, specifically OCPs, or evidenced concern for infection were most likely to be interested in such a product. Women reporting unsafe sexual habits were less likely to be interested, highlighting the importance of HIV/STI prevention education. IMPLICATIONS: Women in the USA are interested in multipurpose prevention technologies, particularly those women who currently use contraception or are concerned about their risk of infection. Our results emphasize the importance of moving forward with MPT development as well as continued HIV/STI prevention education.


Assuntos
Atitude Frente a Saúde , Anticoncepção/psicologia , Infecções por HIV/prevenção & controle , Prevenção Primária/métodos , Infecções Sexualmente Transmissíveis/prevenção & controle , Adolescente , Adulto , Estudos Transversais , Feminino , HIV , Infecções por HIV/psicologia , Humanos , Modelos Logísticos , Análise Multivariada , Gravidez , Gravidez não Planejada/psicologia , Comportamento Sexual/psicologia , Infecções Sexualmente Transmissíveis/psicologia , Estados Unidos , Adulto Jovem
13.
Arch Med Sci ; 14(3): 547-553, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29765441

RESUMO

INTRODUCTION: With increased use of antiretroviral drugs (ARVs) in HIV uninfected persons, proper reporting on suspected unexpected serious adverse reactions (SUSARs) and continued insight into adverse drug reactions (ADRs) are needed for adequate information on safety of ARVs in such populations. MATERIAL AND METHODS: Medical documentation of persons receiving ARVs after non-occupational HIV exposure (non-occupational post-exposure prophylaxis - nPEP) during 5 successive years (2009-2013) was evaluated by two HIV physicians. Adverse drug reactions s and SUSARs were defined according to international standards. In statistical analyses Cox proportional hazard models were used to identify independent predictors of developing a first ADR. RESULTS: In total 375 persons received nPEP with the following indications: needle stick (43%), unprotected sexual intercourse (17%), rape (10%) and first aid (10%). In 84 (22%) cases the source patient was HIV positive or an active injecting drug user. In total 170 ADRs were reported. One hundred thirty-nine persons had only 1 ADR. The most frequent first ADRs were gastrointestinal disorders (22%), followed by general symptoms (9%), hypersensitivity reactions (1.6%) and CNS symptoms (1.3%). The remaining events represented less than 1% of all patients. Eight (2.1%) patients developed a SUSAR. In multivariate analyses only age at first visit to the clinic was an independent predictor of developing an ADR (HR = 1.17, 95% CI: 1.03-1.34; p = 0.02). CONCLUSIONS: In our observations ADRs in reaction to nPEP were frequent yet usually mild events, mostly occurring in the first 2 weeks and rarely causing discontinuation. The only significant factor increasing the risk of ADR was age. SUSARs were rare, transient and clinically insignificant.

14.
Biomaterials ; 144: 144-154, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28829952

RESUMO

New methods for long-lasting protection against sexually transmitted disease, such as the human immunodeficiency virus (HIV), are needed to help reduce the severity of STD epidemics, especially in developing countries. Intravaginal delivery of therapeutics has emerged as a promising strategy to provide women with local protection, but residence times of such agents are greatly reduced by the protective mucus layer, fluctuating hormone cycle, and complex anatomical structure of the reproductive tract. Polymeric nanoparticles (NPs) capable of encapsulating the desired cargo, penetrating through the mucosal surfaces, and delivering agents to the site of action have been explored. However, prolonged retention of polymer carriers and their enclosed materials may also be needed to ease adherence and confer longer-lasting protection against STDs. Here, we examined the fate of two poly (lactic acid)-hyperbranched polyglycerols (PLA-HPG) NP formulations - 1) nonadhesive PLA-HPG NPs (NNPs) and 2) surface-modified bioadhesive NPs (BNPs) - loaded with the antiretroviral elvitegravir (EVG) after intravaginal administration. BNP distribution was widespread throughout the reproductive tract, and retention was nearly 5 times higher than NNPs after 24 h. Moreover, BNPs were found to be highly associated with submucosal leukocytes and epithelial cell populations for up to 48 h after topical application, and EVG was retained significantly better in the vaginal lumen when delivered with BNPs as opposed to NNPs over a 24 h period. Our results suggest that bioadhesive PLA-HPG NPs can greatly improve and prolong intravaginal delivery of agents, which may hold potential in providing sustained protection over longer durations.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Preparações de Ação Retardada/química , Nanopartículas/química , Quinolonas/administração & dosagem , Administração Intravaginal , Animais , Fármacos Anti-HIV/farmacocinética , Feminino , HIV/efeitos dos fármacos , Infecções por HIV/prevenção & controle , Humanos , Camundongos Endogâmicos C57BL , Quinolonas/farmacocinética , Vagina/metabolismo , Vagina/virologia
16.
Trop Doct ; 43(3): 106-7, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23780869

RESUMO

Victims of sexual assaults are routinely tested for HIV in order to discover if they require prophylaxis. This study aimed to determine the prevalence of HIV infection among survivors of sexual assault attending a large peri-urban health facility in KwaZulu-Natal, a province of South Africa. Data from the medical records of the available 534 sexual assault cases that attended the facility between 2005 and 2009 were extracted and reviewed: 19.7% tested HIV positive and HIV prevalence among the survivors over the 5 years increased from 15% in 2005 to 19% in 2009. Screening sexual assault survivors for HIV provides a good opportunity to identify those who will benefit from HIV prophylaxis and HIV-infected persons who need HIV care and treatment.


Assuntos
Infecções por HIV/epidemiologia , Estupro/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , África do Sul/epidemiologia , Sobreviventes/estatística & dados numéricos , Adulto Jovem
19.
Saúde Soc ; 17(3): 190-200, jul.-set. 2008. graf, tab
Artigo em Português | LILACS | ID: lil-493337

RESUMO

Apesar de predominar junto à população a idéia de que a violência sexual é praticada por pessoas desconhecidas, na realidade a maioria desses crimes é praticada por pessoa identificável pela vítima. Além de conseqüências físicas e psicológicas, também há risco em adquirir o vírus HIV. Para prevenção deste, em situação de risco, há orientação para uso da quimioprofilaxia anti-retroviral. Esse uso, por 28 dias, pode trazer efeitos adversos com intensidades variáveis. O conhecimento da sorologia anti-HIV do agressor torna-se fundamental para manter, ou suspender, com segurança, essa indicação. Este estudo descritivo, realizado no Conjunto Hospitalar de Sorocaba, teve como objetivo identificar os agressores e suas respectivas sorologias. Foi realizado a partir de fichas de notificação e os prontuários no período de julho de 2003 a dezembro de 2005. Encontraram-se 920 vítimas de violência sexual, com idades entre oito meses e 77 anos, havendo predomínio do sexo feminino (86,5 por cento). Dentre os agressores, 76 por cento foram referidos como identificáveis. Indicou-se profilaxia anti-retroviral para 24,9 por cento das vítimas. Para 80 (33,2 por cento) agressores localizados, a busca foi realizada através de contato telefônico. Encontrou-se 52,5 por cento em seus domicílios, 45 por cento em Presídio/Delegacia e 2,5 por cento no Pronto Socorro. Um agressor (1,3 por cento) apresentou sorologia positiva para HIV. As buscas encerraram-se, em sua maioria, em até seis dias (80 por cento), possibilitando a suspensão da quimioprofilaxia em 30,6 por cento dos casos. Concluiu-se que a busca ao denunciado permitiu conhecer sua sorologia anti-HIV e suspender, para um terço das vítimas, o uso da quimioprofilaxia anti-retroviral, diminuindo, com isso, a possibilidade de efeitos adversos.


Assuntos
Terapia Antirretroviral de Alta Atividade , Estupro , Abuso Sexual na Infância , Soropositividade para HIV/tratamento farmacológico , Violência
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