Aplicación de un modelo farmacocinético poblacional para el seguimiento de pacientes en tratamiento con dolutegravir: estudio piloto / Application of a Population Pharmacokinetic Model for the Monitoring of Patients Undergoing Treatment with Dolutegravir: pilot study / Aplicação de modelo farmacocinético populacional para acompanhamento de pacientes tratados com dolutegravir: estudo piloto

Introducción: a pesar de los avances en tratamiento antirretroviral, existe la posibilidad de que personas que viven con el virus de la inmunodeficiencia humana (VIH) experimenten falla terapéutica vinculada a múltiples factores que impactan en la respuesta al fármaco. Objetivos: evaluar la utilidad de aplicar un modelo farmacocinético en pacientes con diagnóstico de VIH en tratamiento con dolutegravir para el análisis de las concentraciones plasmáticas experimentales. Adicionalmente, se pretende identificar potenciales interacciones farmacológicas, evaluar adherencia y fallo terapéutico. Material y método: se realizó un estudio piloto transversal y observacional en pacientes VIH tratados con dolutegravir que incluyó la dosificación de la concentración plasmática, evaluación de adherencia mediante el cuestionario simplificado de adherencia a la medicación (SMAQ) y retiro de medicación. Se utilizó un modelo poblacional referenciado en la bibliografía para la predicción de concentraciones de dolutegravir en cada paciente y se compararon con las concentraciones experimentales. Resultados: fueron incluidos en el estudio 21 pacientes. Al cotejar las concentraciones plasmáticas experimentales con la simulación farmacocinética se encontraron diferencias para 12 pacientes, las cuales se explican por posibles interacciones farmacológicas, mala adherencia u otros factores que afectan la farmacocinética. Se detectó 38% de no adherencia de acuerdo con SMAQ y 23% de acuerdo con el retiro de medicación. Conclusiones: se expone el rol potencial de los modelos farmacocinéticos para la interpretación de concentraciones plasmáticas y se genera la necesidad de avanzar en este tipo de estudios para el establecimiento de rango terapéutico y aplicabilidad clínica.

Introduction: Despite advances in antiretroviral treatment, there is a possibility that people living with HIV may experience treatment failure linked to multiple factors that impact drug response. Objective: To evaluate the usefulness of applying a pharmacokinetic model in patients diagnosed with HIV undergoing treatment with dolutegravir for the analysis of experimental plasma concentrations. Additionally, the aim is to identify potential drug interactions, assess adherence, and therapeutic failure. Method: A cross-sectional, observational pilot study was conducted in HIV patients treated with dolutegravir, which included plasma concentration dosing, assessment of adherence using the Simplified Medication Adherence Questionnaire (SMAQ), and medication withdrawal. A population-based model referenced in the literature was used to predict dolutegravir concentrations in each patient and these were compared with experimental concentrations. Results: Twenty-one patients were included in the study. When comparing experimental plasma concentrations with pharmacokinetic simulation, differences were found for 12 patients, which can be explained by possible drug interactions, poor adherence, or other factors affecting pharmacokinetics. Non-adherence was detected in 38% according to the SMAQ and 23% according to medication withdrawal. Conclusions: The potential role of pharmacokinetic models in the interpretation of plasma concentrations is highlighted, emphasizing the need to advance in this type of studies to establish therapeutic ranges and clinical applicability.

Introdução: Apesar dos avanços no tratamento antirretroviral, existe a possibilidade de que pessoas que vivem com HIV experimentem falha terapêutica ligada a múltiplos fatores que impactam na resposta ao medicamento. Objetivos: Avaliar a utilidade da aplicação de um modelo farmacocinético em pacientes com diagnóstico de HIV em tratamento com dolutegravir para análise de concentrações plasmáticas experimentais. Além disso, pretende-se identificar potenciais interações medicamentosas, avaliar a adesão e a falha terapêutica. Método: Um estudo piloto observacional transversal foi conduzido em pacientes HIV tratados com dolutegravir que incluiu dosagem de concentração plasmática, avaliação de adesão usando o questionário simplificado de adesão à medicação (SMAQ) e retirada da medicação. Um modelo populacional referenciado na literatura foi utilizado para prever as concentrações de dolutegravir em cada paciente e compará-las com as concentrações experimentais. Resultados: 21 pacientes foram incluídos no estudo. Ao comparar as concentrações plasmáticas experimentais com a simulação farmacocinética, foram encontradas diferenças em 12 pacientes, que são explicadas por possíveis interações medicamentosas, má adesão ou outros fatores que afetam a farmacocinética. Foram detectadas 38% de não adesão segundo o SMAQ e 23% segundo retirada da medicação. Conclusões: Fica exposto o papel potencial dos modelos farmacocinéticos para a interpretação das concentrações plasmáticas e gera-se a necessidade de avançar neste tipo de estudos para estabelecer a faixa terapêutica e a aplicabilidade clínica.

Clinical Immunological Characteristic and Influencing Factors Analysis of HIV/AIDS Patients Infected with EBV and HCMV / 现代检验医学杂志

Objective To investigate the basic information of human immunodeficiency virus/acquired immune deficiency syndrome(HIV/AIDS)patients who infected with Epstein-Barr virus(EBV)or human Cytomegalovirus(HCMV),collect the relevant clinical immunological data and analyze the influencing factors.Method A total of 1 093 HIV/AIDS patients treated in the First Hospital of Changsha from January to December 2022 and underwent EBV and HCMV screening were collected.Flow cytometry was used to detect the CD4+T lymphocytes.Fluorescence quantitative PCR was applied for HIV-RNA,EBV-DNA,and HCMV-DNA testing.Statistical analysis was carried out by using SPSS 27.0,and logistic regression was used to analyze the risk factors of HIV/AIDS patients complicated with viral infection.Results Among 1 093 HIV/AIDS patients,the positive rates of EBV-DNA and HCMV-DNA were 48.22%(527/1 093)and 19.03%(208/1 093),respectively.As the number of CD4+T lymphocytes increased,the positive rates of EBV-DNA and HCMV-DNA decreased,and the differences was statistically significant(χ2=39.50,143.0,all P<0.001).As the level of HIV-RNA increased,the positive rates of EBV-DNA and HCMV-DNA increased,and the differences were statistically significant(χ2=46.18,124.3,all P<0.001).The patients receiving antiretroviral therapy(ART)significantly decreased the positive rates of EBV-DNA and HCMV-DNA(χ2=30.60,96.59,all P<0.001).There was a significant negative correlation between the number of CD4+T lymphocytes and the level of HIV-RNA(r=-0.49,P<0.001).Logistic regression analysis showed that the CD4+T lymphocyte count<200/μl(OR=1.46,95%CI:1.02～2.08,P=0.037),HIV-RNA load>200 copies/ml(OR=1.70,95%CI:1.18～2.44,P=0.004)and the age>30 years old(OR=2.15,95%CI:1.44～3.19,P<0.001)were risk factors for HIV/AIDS patients infected with EBV.Without regularly receiving ART(OR=1.83,95%CI:1.10～3.02,P=0.019),HIV-RNA load>200 copies/ml(OR=2.56,95%CI:1.50～4.35,P<0.001)and the CD4+T lymphocyte count<200/μl(OR=4.61,95%CI:2.57～8.28,P<0.001)were risk factors for HCMV infection in HIV/AIDS patients.Conclusion To reduce the possibility of opportunistic infection in HIV/AIDS patients,the surveillance of EBV and HCMV and regular ART should be strengthened,especially when the number of CD4+T lymphocytes decreases(<200/μl),the level of HIV RNA increases(>200 copies/ml)or the age>30 years old.

Treatment of Kaposi′s sarcoma / 中华皮肤科杂志

The occurrence of Kaposi′s sarcoma (KS) is closely related to Kaposi′s sarcoma-associated herpesvirus (KSHV) infection of endothelial cells. KSHV infection can present as various types of KS, and clinical features, severity and prognosis differ among different types of KS. Classic KS is characterized by localized lesions and slow progression, AIDS-related KS and endemic KS are highly aggressive, and iatrogenic KS needs control of the primary disease during treatment. Therefore, individualized therapies should be developed according to the clinical classifications and characteristics of KS. This review summarizes treatment modalities of and research progress in KS.

HIV antiretroviral therapy among blood donors: the impact on blood safety / 中国输血杂志

【Objective】 To explore the the potential risks of antiretroviral therapy(ART) drugs on blood safety among blood donors in Shenzhen. 【Methods】 High pressure liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS) was used to measure ART drugs concentrations in the plasma of regular blood donors (negative control group, n=86) and anti-HIV positive individuals (experimental group, n=98, detected from approximately 440 000 blood donors during 2019—2023). The baseline plasma concentrations of ART drugs in the negative control group were clarified, and the impact of ART drugs on blood safety was analyzed. 【Results】 The baseline concentrations of ART drugs were not detected in 86 samples of negative control group. Four positive ART drugs samples were detected in 1∶2 pooled plasma samples of 98 anti-HIV positive blood donors plasma in the resolution test. The ART positive rate of anti-HIV positive donors was 4.08%, with tenofovir, lamivudine and efavirenz detected in three blood donors and lamivudine, lopinavir, ritonavir and zidovudine detected in one blood donor. 【Conclusion】 ART drugs were found among anti-HIV positive blood donors in Shenzhen. Additional research is needed to investigate the motivation of these specific donors, so as to ascertain the groups most susceptible to potential risks, and guarantee blood safety.

Management of immunosuppressive drugs in HIV-positive solid organ transplant recipients / 器官移植

The application of combination antiretroviral therapy (cART) has significantly prolonged the life expectancy of patients infected with human immunodeficiency virus (HIV). However, viral infection and adverse reactions of cART drugs make patients more prone to organ failure. Solid organ transplantation has become a standard treatment for HIV-infected patients with end-stage organ failure. Nevertheless, among HIV-positive soild organ transplant recipients, multiple problems remain to be resolved, such as increased incidence of graft rejection, increased infection risk, drug toxicity and drug interaction between cART therapy and immunosuppressive drugs, etc. It is extremely challenging to deliver appropriate management for HIV-positive soild organ transplant recipients. Therefore, the application of immune induction therapy, calcineurin inhibitors, mammalian target of rapamycin (mTOR) inhibitors and other immunosuppressive drugs in HIV-positive soild organ transplant recipients was reviewed, aiming to provide reference for subsequent management of immunosuppression in HIV-positive soild organ transplant recipients.

Factors affecting immune reconstitution in HIV/AIDS patients after antiretroviral therapy / 预防医学

Objective@#To investigate the immune reconstitution of HIV/AIDS patients and its influencing factors after receiving antiviral therapy (ART) in Hangzhou City, so as to provide insights into improving the treatment effects and quality of life in HIV/AIDS patients.@*Methods@#A retrospective cohort of HIV/AIDS patients who began antiviral treatment between January 1, 2016 and August 31, 2021 and had a baseline CD4+T lymphocyte (CD4) counts of less than 500 cells/μL or a baseline CD4/CD8+T lymphocyte (CD8) ratio of less than 0.8 in Hangzhou City was followed up until August 31, 2023. Demographic information, antiviral therapy in formation, CD4 counts, and CD4/CD8 were collected from the Chinese Disease Prevention and Control Information System. A good immune reconstitution was defined as having CD4≥500 cells/μL and CD4/CD8≥0.8. The immune reconstitution status of HIV/AIDS patients were analyzed, and factors affecting immune reconstitution were identified using a multivariable Cox proportional risk regression model.@*Results@#A total of 3 349 HIV/AIDS patients were enrolled, with a median age at ART of 31 (interquartile range, 20) years. There were 3 075 males (91.82%), 1 600 cases with college education and above (47.78%) and 2 455 cases at WHO clinical stage Ⅰ-Ⅱ(73.31%). There were 1 368 cases with good immune reconstitution, accounting for 40.85%, and the proportion of HIV/AIDS patients with good immune reconstitution that began ART in 2016 was the highest, reaching 51.90%. Multivariable Cox proportional risk regression model identified WHO clinical stage (Ⅰ-Ⅱ, HR=2.529, 95%CI: 2.023-3.162), timely ART (HR=1.196, 95%CI: 1.027-1.394), initial treatment regimen (TDF+3TC+NVP/EFV, HR=2.185, 95%CI: 1.891-2.524; integrase inhibitors, HR=8.509, 95%CI: 6.706-10.795), baseline CD4/CD8 (≥0.1, HR: 1.600-4.515, 95%CI: 1.061-6.661), baseline hemoglobin (<90 mg/dL, HR=0.327, 95%CI: 0.121-0.880), hepatitis B infection (HR=0.619, 95%CI: 0.457-0.840) and hepatitis C infection (HR=0.308, 95%CI: 0.099-0.956) as factors affecting immune reconstitution in HIV/AIDS patients.@*Conclusion@#The immune reconstitution in HIV/AIDS patients after ART is associated with WHO clinical stage, timely ART, initial treatment regimen, baseline CD4/CD8, baseline hemoglobin and hepatitis B or C infection.

HIV-1 subtype and drug resistance in HIV/AIDS patients who failed in antiretroviral therapy in Jinhua City / 预防医学

Objective@#To investigate HIV-1 subtypes and drug resistance in HIV/AIDS patients who failed in antiretroviral therapy in Jinhua City, Zhejiang Province, so as to provide the basis for improving antiretroviral therapy strategy.@*Methods@#Totally 128 plasma samples of HIV/AIDS patients who failed in antiretroviral therapy (treatment for more than 6 months and viral load ≥1 000 copies/mL) from January 1 to November 30, 2023 were collected. After nucleic acid extraction and amplification, the sequences of HIV-1 pol genes were determined using first generation sequencing method, then submitted to HIV resistance database of Stanford University in the United States, and the subtypes, drug resistance mutations and drug resistance status of HIV-1 were analyzed.@*Results@#A total of 118 sequences of HIV/AIDS patients were obtained, including 94 males and 24 females (male to female ratio, 3.9︰1). There were 53 cases aged between 40 to 59 years, accounting for 44.92%. The main infection routes was heterosexual contact, with 92 cases accounting for 77.97%. The main HIV-1 gene subtypes were CRF07_BC and CRF01_AE, with 45 and 39 cases accounting for 38.14% and 33.05%, respectively. There were 75 cases found to have drug-resistant site mutations, with a mutation rate of 63.56%. The most common mutation sites were M184 and K103, with mutation rates of 29.66% and 28.81%, respectively. There were 58 cases with resistance to more than one drug, with a rate of 49.15%. The rates of resistance to non-nucleoside reverse transcriptase inhibitors (NNRTI), nucleotide reverse transcriptase inhibitors (NRTI) and protease inhibitors (PI) were 50.00%, 33.90% and 4.24%, respectively.@*Conclusion@#The HIV-1 gene subtypes of HIV/AIDS patients who failed in antiretroviral therapy in Jinhua City are mainly CRF07_BC and CRF01_AE, which are mainly resistant to NNRTI and NRTI.

Clinico-epidemiological characteristics of adolescents and young adults living with HIV in Ghana

Introduction: sub-Saharan Africa is experiencing a boom in the number of adolescents and young adults living with HIV (AYALHIV). Existing HIV intervention programs are mainly for children and adults living with HIV, with little attention paid to AYALHIV. Characterizing this population is necessary for planning, and designing, AYALHIV-centered HIV intervention programs. Methods: a retrospective single-center, hospital-based chart review was conducted at the largest HIV clinic in Ghana. We examined routinely collected data for AYALHIV (aged 10-24 years) on antiretroviral therapy (ART) for at least 1 year and in active care from 1st January to 31st December 2019. Data was collected using a structured data extraction form. The Chi-square and the Student´s t-test were used to compare characteristics between adolescents and young adults. Results: of 252 AYALHIV, 68% (172/252) were adolescents with a median age of 17 years (IQR 13-19); 32% were young adults with a median age of 22 years (IQR: 20-24). Most (56.7% (143/252)) AYALHIV were female. Almost 40% were orphans. Eighty-six percent of AYALHIV had HIV type I infection. The commonest mode of HIV acquisition among adolescents was vertical transmission (70.5%) and that among young adults was via unprotected sex (31.3%). 88% of AYALHIV were on non-nucleoside reverse transcriptase inhibitors-based regimen. The viral suppression rate among AYALHIV was 78%. Conclusion: the study shows there is a growing population of AYALHIV most of which are adolescents. About two-fifths were orphans. Policymakers and HIV programs should ensure AYALHIV-centred interventions are developed for this vulnerable population.

Incomplete recovery of the CD4+/CD8+ ratio is associated with the late introduction of antiretroviral therapy among people living with HIV infection

ABSTRACT Despite being subject to lower AIDS-related mortality rates and having a higher life expectancy, patients with HIV are more prone to develop non-AIDS events. A low CD4+/CD8+ ratio during antiretroviral therapy identifies people with heightened immune senescence and increased risk of mortality. In clinical practice, finding determinants of a low CD4+/CD8+ ratio may be useful for identifying patients who require close monitoring due to an increased risk of comorbidities and death. We performed a prospective study on the evolution of the CD4+/CD8+ ratio in 60 patients infected with HIV (80% males), who were subjected to two different antiretroviral regimens: early and deferred therapy. The initial CD4+/CD8+ ratio was ≤1 for 70% of the patients in both groups. Older age, CD4+ cell count at inclusion, Nadir CD8+T-cell count, and Initial CD4+/CD8+ ratio ≤ 1 were risk factors for lack of ratio recovery. In the multivariate analysis, a CD4+/CD8+ ratio > 1 at the start of the treatment was found to be a determinant factor in maintaining a CD4+/CD8+ ratio > 1. The nadir CD4+T-cell count was lower in the deferred therapy group (p=0.004), and the last CD4+/CD8+ ratio ≤1 was not associated with comorbidities. Ratio recovery was not associated with the duration of HIV infection, time without therapy, or absence of AIDS incidence. A greater improvement was observed in patients treated early (p=0.003). In contrast, the slope of increase was slower in patients who deferred treatment. In conclusion, the increase in the CD4+/CD8+ ratio occurred mostly for patients undergoing early strategy treatment and its extension did not seem to be related to previous HIV-related factors.

Aspectos farmacológicos y adherencia al tratamiento antirretroviral en pacientes VIH

Introducción: La adherencia al tratamiento farmacológico favorece la supresión viral y reduce la resistencia a la terapia antirretroviral de gran actividad a largo plazo. Objetivo: Determinar la relación entre los aspectos farmacológicos y la adherencia al tratamiento antirretroviral de una IPS colombiana. Metodología: Estudio analítico transversal en pacientes con diagnóstico de VIH en tratamiento antirretroviral entre los años 2012 a 2020. Se utilizó un modelo de regresión logística binaria múltiple con fines explicativos. Resultados: Se analizaron 9835 pacientes donde la proporción de adherencia fue de 90 % y en el modelo ajustado se evaluó su relación con los antecedentes de no adherencia (ORa:0,52 IC95 °/o:0,40-0,66), grupo farmacológico (2 ITIAN + 1 IP u otro) (ORa:1,22 IC95 %:0,99-1,76), dos tomas al día (ORa:1,02 IC95 %:0,74-1,40), unidades al día (≥ 3) (ORa:0,69 IC95 %:0,47-1,02), reacciones adversas a medicamentos (ORa:0,56 IC95 °%:0,40-0,78), polimedicación (ORa:1,36 IC95 %:1,00-1,85), tiempo TAR (1 a 2 años) (ORa:1,63 IC95 %:1,27-2,09),tiempo TAR (6 a 12 meses) (ORa:1,66 IC95 %:1,27-2,18), tiempo TAR (<6 meses) (ORa:1,36 IC95 %:1,03-1,78), tasa de reclamación de los medicamentos (ORa:0,42 IC95 %:0,32-0,55) y antecedentes PRUM (ORa:0,11 IC95 %:0,09-0,14). Discusión: La proporción de adherencia obtenida es superior a lo descrito para otros países (entre 60-77 %); sin embargo se encuentra que los hallazgos correspondientes al efecto de las variables farmacológicas analizadas son acordes a lo descrito en estudios previos en el tema Conclusión: Los antecedentes de no adherencia, reacciones adversas, tasa de reclamación de los medicamentos y antecedentes de problemas relacionados con el uso de medicamentos son aspectos que reducen la probabilidad de adherencia; mientras que el mayor tiempo de uso del tratamiento aumenta la misma.

Introduction: Adherence to drug treatment promotes viral suppression and reduces long-term resistance to highly active antiretroviral therapy (HAART). Objective: To determine the relationship between the pharmacological aspects and adherence to antiretroviral treatment in a Colombian IPS. Methodology: Cross-sectional analytical study in patients with HIV on antiretroviral treatment between 2012 and 2020. A multiple binary logistic regression model was used for explanatory purposes. Results: A total of 9,835 patients were analyzed where the proportion of adherence was 90 % and in the adjusted model its relationship with history of non-adherence was assessed (ORa: 0,52 95 % CI: 0,40-0,66), pharmacological group (2 NRTI + 1 PI or other) (ORa: 1,22 95 % CI: 0,99-1,76), two doses per day (ORa: 1,02 95 % CI: 0,74-1,40), units per day (≥ 3 ) (ORa: 0,69 95 % CI: 0,47-1,02), adverse drug reactions (ORa: 0,56 95 % CI: 0,40-0,78), polypharmacy (ORa: 1,36 95 % CI : 1,00-1,85), ART time (1 to 2 years) (ORa: 1,63 95 % CI: 1,27-2,09), ART time (6 to 12 months) (ORa: 1,66 95 % CI: 1,27-2,18), ART time (<6 months) (ORa: 1,36 95 % CI: 1,03-1,78), inconsistency in the claim (ORa: 0,42 95 % CI: 0,32-0,55) and PRUM history (ORa: 0,11 95 % CI: 0,09-0,14). Discussion: The proportion of adherence obtained is higher than that described for other countries (between 60-77 %); however, the findings corresponding to the effect of the pharmacological variables analysed are in line with those described in previous studies on the subject. Conclusion: The history of non-adherence, adverse reactions, inconsistencies in the claim fill history and problems related to the use of medications are aspects that reduce the probability of adherence. While the longer time of use of the treatment increases adherence.

Factores asociados a la mala adherencia al tratamiento antirretroviral en pacientes VIH positivo / Factors associated with poor adherence to antiretroviral treatment in HIV-positive patients

Introducción: La infección por el virus de inmunodeficiencia humana representa un problema de salud pública en el mundo. La adherencia a la terapia antirretroviral es necesaria para alcanzar un estado de supresión viral máxima y disminuir la tasa de infecciones oportunistas. Sin embargo, diversos son los factores que pueden influir en la adherencia terapéutica. Objetivo: Identificar los factores de riesgo asociados a la mala adherencia a la terapia antirretroviral en pacientes con el virus de inmunodeficiencia humana. Métodos: Se empleó un estudio con diseño observacional, analítico, de tipo casos y controles. El tamaño muestral fue de 276, a partir del cual 138 fueron casos y 138 controles. Los datos recolectados fueron analizados utilizando métodos de estadística descriptiva y estadística inferencial. Resultados: El análisis multivariado determinó una asociación estadísticamente significativa entre la variable adherencia al tratamiento antirretroviral y las variables depresión (odds ratio OR ajustado= 2,15), esquema de terapia antirretroviral alternativo (OR ajustado= 2,40), efectos secundarios (OR ajustado= 4,24) y cambio en la adherencia durante el estado de emergencia (OR ajustado= 5,67), independientemente de las otras variables intervinientes. Conclusiones: La depresión, el uso del esquema de terapia antirretroviral alternativo, la presencia de efectos secundarios a terapia antirretroviral y el cambio en la adherencia durante el estado de emergencia aumentan el riesgo de mala adherencia a la terapia antirretroviral(AU)

Introduction: Human immunodeficiency virus infection represents a public health public problem in the world. Adherence to antiretroviral therapy is necessary to achieve a state of maximum viral suppression and decrease the rate of opportunistic infections. However, there are several factors that can influence therapeutic adherence. Objective: To identify the risk factors associated with poor adherence to antiretroviral therapy in patients with the human immunodeficiency virus. Methods: A study with an observational, analytical, case-control type design was used. The sample size was 276, from which 138 were cases and 138 controls. The collected data was analyzed using methods of descriptive statistics and inferential statistics. Results: The multivariate analysis determined a statistically significant association between the variable adherence to antiretroviral treatment and the variables depression (adjusted Odds Ratio OR = 2.15), alternative antiretroviral therapy scheme (adjusted OR= 2.40), side effects (adjusted OR= 4.24), and change in adherence during the state of emergency (adjusted OR= 5.67) independently of the other intervening variables. Conclusions: Depression, the use of alternative antiretroviral therapy regimens, the presence of side effects to antiretroviral therapy, and the change in adherence during the state of emergency increase the risk of poor adherence to antiretroviral therapy(AU)

Asociación entre el miedo al COVID-19 y la adherencia al tratamiento antirretroviral en personas con VIH-SIDA

Introducción. Una de las consecuencias psicológicas más frecuentes del COVID-19 es el miedo. Éste podría ocasionar una adherencia terapéutica no óptima y permitir la progresión de la enfermedad en personas con VIH. Objetivo. Evaluar la asociación entre el miedo a contraer COVID-19 y la adherencia al tratamiento antirretroviral en personas con VIH entre la tercera y cuarta ola epidémica de COVID-19 en el Perú. Métodos. Estudio transversal analítico en adultos con VIH del centro especializado Vía Libre enrolados por muestreo no probabilístico. Se empleó la escala Fear of COVID-19 Scale para medir el miedo a contraer COVID-19, y el cuestionario SMAQ para evaluar la adherencia terapéutica. Los resultados se presentaron de forma descriptiva, usando chi cuadrado para el análisis bivariado y modelos lineales generalizados familia Poisson para estimar razones de prevalencia crudas y ajustadas (RPa). Resultados. Entre febrero - julio del 2022, se enrolaron 149 personas con una mediana de edad de 35 años, el 91,3% fueron varones, y el 75,2% con carga viral indetectable. No se halló asociación entre el miedo a contraer COVID-19 y la adherencia terapéutica (RPa: 0,99; IC95%: 0,97 a 1,02). Adicionalmente, encontramos que las personas que presentaban alguna comorbilidad fueron 89% más adherentes que los que no las presentaban (RPa: 1,89; IC95%: 1,52 a 2,35). Conclusión. El miedo a contraer COVID-19 no se asoció a la adherencia al TARGA durante la tercera ola de pandemia en el Perú. Sin embargo, el presentar alguna comorbilidad se asoció a una adherencia terapéutica óptima. Se debe poner énfasis en los posibles factores que afecten la adherencia en personas con VIH durante la pandemia por COVID-19.

Introduction. One of the most frequent psychological consequences of COVID-19 is fear, which could lead to non-optimal therapeutic adherence and, therefore, to the disease progression. Objectives. To evaluate the possible association between the fear of contracting COVID-19 and adherence to antiretroviral therapy in persons with HIV during the period between the third and fourth epidemic wave of COVID-19 in Peru. Methods. Analytical cross-sectional study in adults with HIV from the specialized center "Vía Libre" enrolled by non-probabilistic sampling. The validated "Fear of COVID-19 Scale" was used to measure the fear of getting sick from COVID-19, and the "SMAQ" questionnaire to assess therapeutic adherence. Results were presented descriptively, using chi-square for bivariate analysis and generalized linear models, Poisson family to calculate crude and adjusted prevalence ratios (aPR). Results. Between February and July of 2022, 149 adults with a median age of 35 years were enrolled, 91.3% being male, and 75,2% had undetectable viral load levels. No association was found between fear of contracting COVID-19 and HAART adherence (aPR: 0,99; 95% CI 0,97 to 1,02). Persons with a comorbidity were 89% more adherent than persons withoutcomorbidities (RPa: 1,89; 95% CI 1,52 to 2,35). Conclusion. The fear of contracting COVID-19 was not associated with adherence to HAART during the third wave of COVID-19 pandemic in Peru. However, presenting a comorbidity was associated with optimal HAART adherence. Emphasis should be placed on potential factors affecting medication adherence in people with HIV during the COVID-19 pandemic.

Survival of patients living with HIV and cancer in Cali, Colombia

Background: People living with HIV have an increased risk of cancer compared to the general population. However, with the increase in life expectancy and advances in antiretroviral therapy, the survival of patients with cancer and HIV has changed. Objective: To determine the survival of patients living with HIV and cancer in Cali, Colombia Methods: A retrospective cohort study was conducted at the Fundación Valle del Lili, Cali, Colombia. Data from the HIV database was crossed with data from the hospital and population-based cancer registries between 2011-2019. Patients <18 years, limited available clinical information on the diagnosis and treatment of HIV and cancer, and non-oncological tumor diagnosis were excluded. Results: A total of 173 patients were included. The frequencies of AIDS-defining neoplasms were: Non-Hodgkin lymphoma (42.8%), Kaposi sarcoma (27.8%), and cervical cancer (4.6%). Overall survival was 76.4% (95% CI 68.9-82.3) at five years. Poorer survival was found in patients with AIDS-defining infections (56.9% vs. 77.8%, p=0.027) and non-AIDS-defining infections (57.8% vs. 84.2%, p=0.013), while there was better survival in patients who received antiretroviral therapy (65.9% vs. 17.9%, p=0.021) and oncological treatment (66.7% vs. 35.4%, p<0.001). The presence of non-AIDS-defining infections increases the risk of dying (HR = 2.39, 95% CI 1.05-5.46, p=0.038), while oncological treatment decreases it (HR = 0.33, 95% CI 0.14-0.80, p=0.014). Conclusions: In people living with HIV, Non-Hodgkin lymphoma and Kaposi sarcoma are the most common neoplasms. Factors such as AIDS-associated and non-AIDS-associated infections have been identified as determinants of survival. Cancer treatment seems to improve survival.

Antecedentes: Las personas que viven con VIH tienen un riesgo mayor de cáncer en comparación con la población general. Sin embargo, con el aumento de la esperanza de vida y los avances en la terapia antirretroviral, la supervivencia de los pacientes con cáncer y VIH ha cambiado. Objetivo: Determinar la supervivencia de los pacientes que viven con VIH y cáncer en Cali, Colombia. Métodos: Se realizó un estudio de cohorte retrospectivo en la Fundación Valle del Lili, Cali, Colombia. Los datos de la base de datos de VIH se cruzaron con los datos de los registros de cáncer de base hospitalaria y poblacional entre 2011-2019. Se excluyeron los pacientes <18 años, con información clínica limitada disponible sobre el diagnóstico y tratamiento del VIH y el cáncer y los casos con diagnóstico de tumor no oncológico. Resultados: Se incluyeron un total de 173 pacientes. Las frecuencias de neoplasias definitorias de SIDA fueron: linfoma no Hodgkin (42.8%), sarcoma de Kaposi (27.8%) y cáncer cervical (4.6%). La supervivencia global fue del 76.4% (IC 95% 68.9-82.3) a los cinco años. Se encontró una peor supervivencia en pacientes con infecciones definitorias de SIDA (56.9% vs. 77.8%, p=0.027) e infecciones no definitorias de SIDA (57.8% vs. 84.2%, p=0.013), mientras que hubo una mejor supervivencia en pacientes que recibieron terapia antirretroviral (65.9% vs. 17.9%, p=0.021) y tratamiento oncológico (66.7% vs. 35.4%, p<0.001). La presencia de infecciones no definitorias de SIDA aumentó el riesgo de morir (HR = 2.39, IC 95% 1.05-5.46, p=0.038), mientras que el tratamiento oncológico lo disminuyó (HR = 0.33, IC 95% 0.14-0.80, p=0.014). Conclusiones: En las personas que viven con VIH, el linfoma no Hodgkin y el sarcoma de Kaposi son las neoplasias más comunes. Se han identificado factores como las infecciones asociadas al SIDA y las infecciones no asociadas al SIDA como determinantes de la supervivencia. El tratamiento del cáncer parece mejorar la supervivencia.

Health-related quality of life among people living with HIV/AIDS on highly active antiretroviral treatment: A questionnaire-based study

Introduction: The knowledge of the effect of sociodemographic and disease-related factors on health-related quality of life (HRQoL) among people living with HIV/AIDS (PLWHA) is important for planning comprehensive health-care services for them. Material and Methods: Two hundred PLWHA on antiretroviral therapy (ART) volunteered to complete a self-reported World Health Organization’s Quality of Life?HIV brief questionnaire (WHOQoL-HIV-BREF) that examines six domains each with four items (physical, psychological, level of independence, social, environmental, and spiritual) with 25 facets and additional 5 facets specific to PLWHA (symptoms of HIV, social inclusion, forgiveness, worries about the future, and death and dying). Results: Only 135 questionnaires from 73 (53.3%) men and 63 (46.7%) women (male: female – 1.14:1) aged 20–82 years(mean ± standard deviation: 42.9 ± 10.5 years) were found complete. Eighty-five (63%) individuals were aged 41–60 years, 78 (57.8%) individuals were matriculates, graduates, or postgraduates, 76 (56.3%) respondents were married, and 38 (28.1%) were widows/widowers. Staying-alone workers comprised 43 (31.8%) individuals. Overall health and HRQoL were rated satisfactory (n = 85.2%) and good/very good (n = 74.8%) by a significantly greater number of individuals (P = 0.001). Pearson’s Chi-squared test showed no statistically significant (P > ?) associations between good HRQoL and variables such as age >40 years, gender, education, marital status, duration of disease, disclosure of serostatus to family, ART for >3 years, and CD4 >200 cells/mL. Conclusion: Regular ART can result in adequate control of immunosuppression and no comorbidities in a majority of PLWHA, family and social acceptance, and financial security can result in overall good HRQoL in all six domains within the WHOQoL-HIV-BREF. The study is limited by its cross-sectional study design and small sample size.

Associated oral manifestations with HIV southeastern Brazilian patients on antiretroviral therapy

Abstract Objectives This study aimed to assess the prevalence of oral lesions in patients living with HIV infection and their association with CD4 count, viral load, and antiretroviral therapy in patients with HIV. Methods A cross-sectional study was conducted on a sample of 161 patients attending the… All the patients were examined for their oral lesions, current CD4 counts, type, and duration of the therapy. Data analyses were carried out using Chi-Square, Student T/Mann-Whitney, and logistic regression tests. Results Oral lesions were observed in 58.39% of patients with HIV. Periodontal disease with 78 (48.45%) or without mobility 79 (49.07%) was observed more frequently, followed by hyperpigmentation of oral mucosa 23 (14.29%), Linear Gingival Erythema (LGE) 15 (9.32%), candidiasis pseudomembranous 14 (8.70%). Oral Hairy Leukoplakia (OHL) was observed only in 3 (1.86%). A relationship between periodontal disease with dental mobility and smoking was found (p = 0.04), as well duration of treatment (p = 1.53e-3) and age (p = 0.02). Hyperpigmentation was related to race (p = 0.01) and smoking (p = 1.30e-6). CD4 count, CD4:CD8 ratio, viral load, or type of treatment were not associated with oral lesions. Logistic regression showed that the duration of treatment has a protective effect on the periodontal disease with dental mobility (OR = 0.28 [−2.27 to −0.25]; p-value = 0.03), independent of age or smoking. To hyperpigmentation, the best model included smoking (OR = 8.47 [1.18-3.10], p = 1.31e-5), without race or type and duration of treatment. Conclusion Among HIV patients undergoing antiretroviral treatment, oral lesions can be observed, predominantly periodontal disease. Pseudomembranous candidiasis and oral hairy leukoplakia were also observed. No relationship was found between associated oral manifestations in HIV patients and the start of the treatment, TCD4+ and TCD8+ cell count, TCD4:TCD8 ratio, or viral load. The data indicate that there is a protective effect of duration of treatment with relation to periodontal disease with mobility and that hyperpigmentation seems to be more related to smoking than type and duration of treatment. Level of evidence Level 3 (OCEBM Levels of Evidence Working Group*. "The Oxford 2011 Levels of Evidence").

Study of pattern and time-reaction sequence for adverse drug reactions reported to antiretroviral drugs

Background: Adverse drug reactions (ADRs) to antiretroviral drugs have a varied pattern and wide spectrum of severity from mild to very serious. The lack of a pre-established time-reaction sequence hampers the causality assessment of ADRs. Recognition of pattern of ADRs to antiretroviral drugs in a particular setup might sensitize the reporters to report ADRs, especially in setups dependent on spontaneous reporting. Aim and Objectives: The study of pattern and time-reaction sequence for ADRs reported to antiretroviral drugs. Materials and Methods: Retrospective study was conducted at a first-line antiretroviral therapy (ART) center after obtaining approval from the Institutional Ethics Committee. Pattern of ADRs associated with ART was done by analyzing the type of ADRs, severity, and outcome of ADRs reported to antiretroviral drugs. Mean duration of time lapse between administration of drug to onset of adverse drug reaction was calculated. Descriptive statistics was used for data analysis. Results: There were 73 adverse reactions reported. Most common type of adverse reaction was cutaneous (53.42%) followed by anemia (31%). Causality assessment of most ADRs was concluded as possible (60.27%). Most ADRs were of moderate severity and 12% were severe reactions. Reactions such as anemia and neuropsychiatric ADRs often occurred late, while maculopapular rash usually occurred within 30 days of drug administration. Conclusions: ADRs to ART include an array of reactions ranging from mild rash to psychosis or severe anemia. Most of these reactions are of moderate severity and have a favorable outcome. Many of these reactions actually occur almost a month after initiating a drug regime suggesting the need for intensive monitoring around this time.

Psychometric Properties of an Instrument to Assess the Barriers to Antiretroviral Treatment Adherence among the Argentinian Population / Propiedades psicométricas de un instrumento de evaluación de barreras para la adherencia al tratamiento antirretroviral en población argentina / Propriedades psicométricas de um instrumento para avaliar as barreiras à adesão ao tratamento antirretroviral na população argentina

Aim: To adapt and validate an existing instrument to assess the barriers to antiretroviral treatment adherence among individuals with hiv in Córdoba, Argentina. Materials and methods: The final sample population included 180 Argentinian people. The mean age of the participants was 40.61 (sd = 12.032) years and 82.8% were men. Various internal structure and reliability and validity studies with other variables were conducted on the study population (n = 180). Results: The results of confirmatory factor analysis were consistent with the factorial structure of the original study. However, to achieve this, items that had low factorial loads and were redundant had to be eliminated. Coefficient ω values of .833 on the Information sub-scale, .759 on the Motivation subscale, and .888 on the Behavioral Skills subscale were obtained. Significant correlations were determined between the results of adherence and barriers to treatment. Conclusion: The results suggest that the instrument can be used to assess the barriers to antiretroviral treatment adherence in Córdoba, Argentina. Although further research is warranted, these results are promising.

adaptar y validar un instrumento para evaluar barreras a la adherencia antirretroviral en personas que conviven con el vih en Córdoba (Argentina). Materiales y métodos: la muestra final incluyó 180 participantes argentinos. La media de edad fue de 40.61 (de = 12.032) y el 82.8 % fueron hombres. Sobre la muestra (n = 180) se efectuaron estudios de estructura interna, confiabilidad y validez con otras variables. Resultados: el análisis factorial confirmatorio arrojó resultados congruentes con la estructura factorial del estudio original, aunque para ello fue necesario eliminar ciertos ítems que presentaban bajas cargas factoriales y que pueden ser representados por otros ítems, debido a información redundante. Se obtuvieron coeficientes ω = 0.833 en la subescala información; ω = 0.759 en la subescala motivación, y ω = 0.888 en la subescala habilidades comportamentales. Se encontraron correlaciones significativas entre los resultados de adherencia al tratamiento y barreras al tratamiento. Conclusión: aunque se requieren de mayores investigaciones, los resultados son promisorios, sugieren que el instrumento puede usarse para evaluar barreras de la adherencia al tratamiento antirretroviral en Córdoba.

adaptar e validar um instrumento de barreiras à adesão anti-retroviral em pessoas vivendo com hivem Córdoba, Argentina. Materiais e métodos: A amostra final incluiu 180 participantes argentinos. A idade média era de 40,61 anos (sd = 12,032) e 82,8% eram homens. Com a amostra (n = 180) foram realizados estudos de estrutura interna, confiabilidade e validade com outras variáveis. Resultados: a análise fatorial confirma-tória apresentou resultados adequados com a estrutura fatorial do estudo original, embora para isso tenha sido necessário eliminar alguns itens que apresentavam baixas cargas fatoriais e poderiam ser representados por outros itens devido a informações redundantes. Os coeficientes ω = 0,833 foram obtidos na subescala informação; ω = 0,759 na subescala motivação, y ω = 0,888 na subescala competências comportamentais. Correlações significativas foram encontradas entre os resultados do adherencia al tratamiento e do barreiras à adesão ao tratamento. Conclusão: embora mais pesquisas sejam necessárias, os resultados são promissores, sugerindo que o instrumento pode ser usado para avaliar as barreiras à adesão ao tratamento anti-retroviral em Córdoba, Argentina.

A paired comparison study of genetic transmission network base on HIV-1 pol gene DNA or RNA sequence / 中国热带医学

@#Abstract: Objective To understand the difference of DNA sequence and RNA sequence of paired pol region in HIV patients in constructing HIV genetic transmission network, and to provide scientific data for constructing molecular transmission networks using DNA sequences. Methods　The whole blood and plasma samples of HIV patients living in 2014 and newly reported in 2015-2018 in Liuzhou, Guangxi, were collected, DNA and RNA sequences were extracted, amplified, sequenced, spliced and aligned, and then genetic transmission networks were constructed, and the connectivity consistency of genetic transmission networks constructed by DNA and RNA sequences was compared. Results In this study, a total 2 983 participants were investigated, which were 2014 baseline and 2015-2018 newly reported HIV patients, of which 2 590 participants were only DNA sequences in 2014 baseline, 196 HIV patients were both DNA and RNA sequences of paired pol region in 2014 baseline, and 197 newly reported HIV patients were both DNA and RNA sequences of paired pol region in 2015-2018. In 393 DNA and RNA sequences of paired pol region, the genotype of DNA sequence and RNA sequence were consistent, and there was no statistically significant difference in genetic distance between paired DNA sequences and RNA sequences (Z=-2.72, P=1.00). The connection consistency rate of genetic transmission networks constructed by DNA and RNA sequences of paired pol region of 2015-2018 newly reported with the baseline DNA sequences was 91.4% (108/197). And the connection consistency rate of genetic transmission networks constructed by DNA and RNA sequences of paired pol region of 2015-2018 newly reported with the baseline RNA sequences was 97.0% (191/197). There was no statistical difference in antiretroviral therapy to reduce the risk of HIV secondary transmission between genetic transmission networks constructed by DNA and RNA sequences of paired of pol gene newly reported from 2015 to 2018 with baseline DNA sequence. Conclusion　DNA sequence and RNA sequence of paired pol region of HIV patients have good consistency in genotype, genetic distance, and genetic transmission network construction, and both DNA and RNA sequences can be used for genetic transmission network analysis.

Migration characteristics among HIV/AIDS patients reported in Yiwu City from 2016 to 2020 / 预防医学

Objective@#To investigate the migration characteristics and follow-up treatment among HIV/AIDS patients after HIV confirmation in Yiwu City, Zhejiang Province from 2016 to 2020, so as to provide insights into the optimization of the HIV/AIDS control strategy among floating populations.@*Methods@#The reported HIV/AIDS patients' demographics, follow-up and treatment data in Yiwu City from 2016 to 2020 were captured from the HIV/AIDS Prevention and Control Information System of Chinese Disease Control and Prevention Information System. The migration characteristics, antiretroviral therapy and outcomes of HIV/AIDS patients were analyzed after HIV confirmation, and the factors affecting the migration of HIV/AIDS patients after HIV confirmation were identified using a Cox proportional hazard regression model.@*Results@#A total of 1 189 HIV/AIDS patients were enrolled, including 988 men (83.10%) and 806 cases without Zhejiang provincial household registration (67.79%). There were 441 patients (37.09%) migrating out of Yiwu City after HIV confirmation, with a migration rate of 17.73/100 person-years, and there were 366 patients migrating out of Zhejiang Province, with a cross-province migration rate of 30.78%. Among participants without Zhejiang provincial household registration, 395 patients (49.01%) migrated out of Yiwu City, including 337 patients (85.32%) returning to their household registration provinces, which mainly included Yunnan, Sichuan, Guizhou and Hunan. Cox proportional hazard regression analysis showed a high risk of migration among minority ethnic populations (HR=1.375, 95%CI: 1.044-1.811), retires (HR=3.605, 95%CI: 1.771-7.335), students (HR=8.969, 95%CI: 4.095-19.645), patients without Zhejiang provincial household registration (HR=4.545, 95%CI: 3.164-6.529) and patients identified through physical examination of floating populations or employees (HR=1.318, 95%CI: 1.006-1.727), and a low risk among married patients with spouses (HR=0.721, 95%CI: 0.569-0.913) and with an educational level of junior high school and above (HR: 0.428~0.753, 95%CI: 0.280-0.952). Among all floating HIV/AIDS patients, there were 26 cases lost to follow-up (5.90%) and 49 deaths (11.11%). In addition, the proportion of absence of antiretroviral therapy, HIV infection progressing into AIDS patients and failure in HIV inhibition were all greater among floating HIV/AIDS patients than among non-floating patients (P<0.05).@*Conclusions@#A high risk of migration was found among HIV/AIDS patients without Zhejiang provincial household registration, unmarried patients, patients with a low education level, retirees, students, and patients identified through physical examination of floating populations or employees in Yiwu City from 2016 to 2020, and migration does not facilitate the sustainability of antiretroviral therapy and follow-up, which may affect the prognosis of HIV/AIDS.

Current status and influencing factors of different initiation time of antiretroviral therapy in HIV/AIDS patients / 上海预防医学

ObjectiveTo investigate the status of different antiretroviral therapy（ART） initiation times in patients with HIV/AIDS and analyze the relevant characteristics and influencing factors of delayed ART. MethodsFrom December 2018 to December 2020， a survey was conducted among adult HIV/AIDS patients treated in 28 designated AIDS prevention and treatment institutions in Beijing， Shanghai， Guangdong， Jiangsu， Henan， Jiangxi， Guangxi， Yunnan and other places. Data of the basic demographic information， lifestyle and chronic disease prevalence， and characteristics of diagnosis and treatment were collected. The characteristics and related factors of delayed ART were compared and analyzed. ResultsThe median age of 1 741 patients was 41 years old （IQR： 32‒52）. The initial CD4 count of most patients was less than 200 cells·μL-1（51.4%）. Among them， 1 027 patients had delayed ART （59.0%）， and the association between ART initiation time and initial CD4 count varied with the time of diagnosis of HIV infection. Multivariate logistic analysis showed that the older age （aOR=0.99， 95%CI： 0.98‒0.99） was associated with a higher rate of starting ART within 1 month after diagnosis， while those diagnosed before 2017 and with the initial CD4 count >200 cells·μL-1 were more likely to delay ART. Delayed initiation of ART may be a risk factor for poor sleep quality and co-infection in HIV/AIDS patients. ConclusionWith the expansion of free ART in China， the proportion of delayed ART with HIV/AIDS shows a downward trend. Timely ART management should be strengthened for the young HIV/AIDS patients and patients with high CD4 counts.