Very Low Incidence of HIV-infection and Decreasing Incidence of STI Among PrEP Users in 2020 After Introduction of Health Insurance Coverage in Germany

IntroductionObjectives of this study, as part of a nation-wide HIV pre-exposure prophylaxis (PrEP) evaluation project, were to determine the incidence and prevalence of infections with HIV, Chlamydia, Gonorrhea, Syphilis, Hepatitis A/B/C in persons using PrEP, and to describe the health care funded PrEP use in Germany. Additionally, factors associated with Chlamydia/Gonorrhea and Syphilis infections were assessed.MethodsAnonymous data of PrEP users were collected at HIV-specialty centers from 09/2019-12/2020. Incidence rates were calculated per 100 person years (py). Logistic regression was used to analyze risk factors associated with sexually transmitted infections (STIs).Results4620 PrEP users were included: 99.2% male, median age 38 years (IQR 32-45), PrEP indication 98.6% men who have sex with men (MSM). Duration of PrEP use were 5132 py; median duration 451 days (IQR 357-488).Four HIV infections were diagnosed, incidence rate 0,078/100py (95% CI 0.029-0.208). For two suboptimal adherence was reported and in the third case suboptimal adherence and resistance to emtricitabine was observed. One infection was likely acquired before PrEP start.Incidence rates were 21.6/100py for Chlamydia, 23.7/100py for Gonorrhea, 10.1/100py for Syphilis and 55.4/100py for any STI and decreased significantly. 65.5% of Syphilis, 55.6% of Chlamydia and 50.1% of Gonorrhea cases were detected by screening of asymptomatic individuals. In a multivariable analysis among MSM younger age, PrEP start before health insurance coverage and daily PrEP were associated with greater risk for Chlamydia/Gonorrhea. Symptom triggered testing and a history of STI were associated with a higher risk for Chlamydia/Gonorrhea and Syphilis.ConclusionsWe found that HIV-PrEP is almost exclusively used by MSM in Germany. A very low incidence of HIV-infection and decreasing incidence rates of STIs were found in this cohort of PrEP users. The results were likely influenced by the SARS-CoV-2 pandemic. Rollout of PrEP covered by health insurance should be continued to prevent HIV infections. Increased PrEP availability to people at risk of HIV infection through the elimination of barriers requires further attention. Investigation and monitoring with a longer follow-up would be of value.

Strategies to Optimize Adherence in Patients with Mycosis Fungoides

Patient adherence to medications for common skin conditions has been extensively studied over the past two decades, and suboptimal adherence is a primary contributor to treatment failure. The impact of sub-par adherence in cutaneous T-cell lymphoma (CTCL) patients has been largely unexplored, and promoting adherence in this patient population may represent a promising area of consideration for improving treatment outcomes. We apply patient adherence strategies that have been studied in dermatology to CTCL and provide concrete examples of how these strategies can be used to improve adherence in the CTCL setting. Through the implementation of small changes in how we present and counsel about therapeutic options to our patients, we can maximize patient adherence, which has the potential to optimize therapy regimens and reduce treatment failure.

A model to predict adherence to antiretroviral therapy among people living with HIV

ObjectivesSuboptimal adherence to antiretroviral therapy (ART) dramatically hampers the achievement of the UNAIDS HIV treatment targets. This study aimed to develop a theory-informed predictive model for ART adherence based on data from Chinese.MethodsA cross-sectional study was conducted in Shenzhen, China, in December 2020. Participants were recruited through snowball sampling, completing a survey that included sociodemographic characteristics, HIV clinical information, Information-Motivation-Behavioural Skills (IMB) constructs and adherence to ART. CD4 counts and HIV viral load were extracted from medical records. A model to predict ART adherence was developed from a multivariable logistic regression with significant predictors selected by Least Absolute Shrinkage and Selection Operator (LASSO) regression. To evaluate the performance of the model, we tested the discriminatory capacity using the concordance index (C-index) and calibration accuracy using the Hosmer and Lemeshow test.ResultsThe average age of the 651 people living with HIV (PLHIV) in the training group was 34.1±8.4 years, with 20.1% reporting suboptimal adherence. The mean age of the 276 PLHIV in the validation group was 33.9±8.2 years, and the prevalence of poor adherence was 22.1%. The suboptimal adherence model incorporates five predictors: education level, alcohol use, side effects, objective abilities and self-efficacy. Constructed by those predictors, the model showed a C-index of 0.739 (95% CI 0.703 to 0.772) in internal validation, which was confirmed be 0.717 via bootstrapping validation and remained modest in temporal validation (C-index 0.676). The calibration capacity was acceptable both in the training and in the validation groups (p>0.05).ConclusionsOur model accurately estimates ART adherence behaviours. The prediction tool can help identify individuals at greater risk for poor adherence and guide tailored interventions to optimise adherence.

Selection of psychotropics in dermatologic practice

There is an increased prevalence of psychiatric symptoms in dermatologic disorders. However, these are often underrecognized and undertreated contributing to suboptimal adherence and therapeutic outcomes. A working knowledge of psychotropic medications and their use in dermatology is essential for comprehensive management of psychodermatological conditions. The present review provides a framework for use of psychotropic agents in dermatological settings and is intended to serve as a ready reckoner for the dermatologist. We initially review the general considerations involved in prescribing psychotropic agents in skin conditions. Next, we discuss individual classes of psychotropic agents such as anti-depressants, mood stabilizers, antipsychotics, and anxiolytics focusing on preferred agents while prescribing. Finally, we discuss the common adverse cutaneous reactions reported with psychotropic agents.

629. High Efficacy of Bictegravir/Emtricitabine/Tenofovir Alafenamide (B/F/TAF) in African American Adults with HIV Including Those with Preexisting Resistance, Viral Blips, and Suboptimal Adherence

Background BRAAVE 2020 demonstrated the efficacy of switching to bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) among African American adults with suppressed HIV through Week (W) 48 (Figure 1). We present resistance, viral blips, adherence, and virologic outcomes through W72. Figure 1. BRAAVE 2020 study design (phase 3, randomized, open-label, multicenter [USA], active-controlled study) and virologic suppression at weeks 24 and 48 *Allowed 3rd agents: any FDA-approved protease inhibitor, nonnucleoside reverse transcriptase inhibitor (except etravirine), integrase strand transfer inhibitor (except bictegravir), or maraviroc. Methods Enrollment criteria permitted NNRTI resistance (-R), PI-R, and certain NRTI-R (M184V/I allowed; K65R/E/N, ≥3 thymidine analog mutations [TAMs], or T69-insertions excluded) and excluded known primary INSTI-R. Preexisting drug resistance was assessed with historical genotypes and retrospective baseline proviral DNA genotyping. Adherence was calculated by pill count. Viral blips (transient HIV-1 RNA ≥50 copies/mL) and outcomes based on last available on-treatment HIV-1 RNA were assessed. Results 489 participants received B/F/TAF and had ≥1 post-switch HIV-1 RNA measurement. Baseline genotypic data from cumulative historical and/or proviral genotypes were available for 96% (468/489) in protease/reverse transcriptase and 93% (453/489) in integrase. Preexisting NRTI-R, M184V/I, ≥1 TAMs, NNRTI-R, and PI-R were observed in 15% (68/468), 11% (50/468), 8% (36/468), 22% (101/468), and 13% (61/468), respectively. Primary INSTI-R was detected post-randomization in 2% (11/453); all remained in the study and were included in efficacy analyses. Through W72, 99% (486/489) of participants had HIV-1 RNA < 50 copies/mL at their last study visit, including all with baseline NRTI-R or INSTI-R (Figure 2). Mean frequency of viral blips was 1% per timepoint, and blips were not associated with virologic failure. 112 participants (23%) had < 95% adherence by pill count, 98% (110/112) of whom had HIV-1 RNA < 50 copies/mL at last visit, including 14 of 14 (100%) with < 80% adherence. No participant discontinued due to lack of efficacy or had treatment emergent resistance to study drugs. Figure 2. Virologic suppression by preexisting resistance, viral blips, and adherence Conclusion Virologic suppression was maintained through W72 of B/F/TAF treatment, including those with preexisting resistance, viral blips, and suboptimal adherence. Continued HIV suppression and absence of treatment-emergent resistance demonstrate the efficacy of B/F/TAF in African Americans regardless of adherence or preexisting resistance to NNRTIs, PIs, or non-tenofovir NRTIs. Disclosures Kristen Andreatta, MSc, Gilead Sciences, Inc (Employee, Shareholder) Michelle L. D'Antoni, PhD, Gilead Sciences (Employee, Shareholder)Gilead Sciences, Inc (Employee, Shareholder) Silvia Chang, Masters, Gilead Sciences, Inc (Employee, Shareholder) Aiyappa Parvangada, MS Computational Biology, Gilead Sciences, Inc (Employee, Shareholder) Ross Martin, PhD, Gilead Sciences, Inc (Employee, Shareholder) Christiana Blair, MS, Gilead Sciences, Inc (Employee, Shareholder) Sean E. Collins, MD, MS, Gilead Sciences, Inc (Employee, Shareholder) Kirsten L. White, PhD, Gilead Sciences, Inc (Employee, Shareholder)

Psychosocial interventions to improve HIV treatment adherence: A systematic review

Introduction: The problem of suboptimal adherence to antiretroviral treatment (ART) can be overcome through multidisciplinary management that includes evidence-based psychosocial interventions. Existing reviews focus only on randomized controlled trials, overlooking valuable interventions whose evidence comes from different study designs. This review aimed to synthesize the current state of the art in psychological interventions for ART adherence, integrating studies with a variety of research designs.Methods: We conducted a systematic review following PRISMA guidelines. We searched five databases for articles reporting a psychosocial intervention to improve treatment adherence for people living with HIV. The quality of each study was analyzed, and the data summarized using a narrative synthesis method.Results and discussion: Twenty-six articles were identified for inclusion. Individual counselling was the most common intervention, followed by peer-support based interventions delivered virtually or in person. Most interventions mixed different strategies, combining technology with individual counselling and peer support. It is important to note that the quality of evidence was not dependent on the study design.Conclusion: While the evidence requires further advancement, the review provides insight into which psychosocial interventions are helpful in improving ART treatment adherence.

Perception and Practice on the Management of Pediatric Diarrhea in Thailand

Background: Various observational and survey-based studies have shown suboptimal adherence to clinic practice guidelines, on management of pediatric diarrhea in Thailand. Objective: To define clinical practice of acute diarrhea in young children at a quaternary care teaching hospital, and to determine factors associated with the management. Materials and Methods: The authors initially reviewed the medical records of 1,500 children aged one month to five years with a diagnosis code of acute diarrhea between January 2017 and December 2018. The authors excluded children who received treatment from other centers or had other final primary diagnosis. This resulted in 802 cases, from which the authors collected presenting symptoms, investigations, and management. Results: The median age was 16 months (IQR 9, 29). Most children had no documentation of dehydration status (60%) and did not have mucous or blood in their stools (80%). Blood or stool tests were performed in less than 20% of the cases. Advice on lactose avoidance was noted in 16%, while antibiotics and hospital admission were noted in less than 10%. Domperidone was prescribed in 42%, while ondansetron was given in 8.7%. Multivariate logistic regression analyses showed various independent factors associated with lactose avoidance including age of less than 24 months, type of physician, vomiting, and hospital admission, antibiotic used when there was high grade fever of 39℃ or higher, mucous bloody stools, performed blood culture, and stool culture, and hospital admission when there was moderate dehydration, complete blood count, and performed stool culture. Conclusion: Recording dehydration status is suboptimal. Low rates of investigations complied with most clinical scenarios. Findings on the pediatric acute diarrhea-related management may provide future opportunities to improve education and further conduct quality improvement projects among clinicians. Keywords: Antibiotics; Gastroenteritis; Lactose; Probiotics; Racecadotril