Cytomegalovirus IgG is Associated With Physical Function But Not Muscle Density in People With HIV

BACKGROUND

Cytomegalovirus (CMV) seropositivity is associated with poor outcomes, including physical function impairment, in people without HIV. We examined associations between CMV IgG titer and physical function in virologically suppressed people with HIV (PWH).

METHODS

REPRIEVE is a double-blind randomized trial evaluating pitavastatin for primary prevention of atherosclerotic cardiovascular disease in PWH. This analysis focused on participants enrolled in a substudy with additional biomarker testing, imaging [coronary CT angiography], and physical function measures at entry. CMV IgG was measured using quantitative enzyme immunoassay, physical function by Short Physical Performance Battery, and muscle density and area by CT. Associations between CMV IgG (risk factor) and outcomes were evaluated using the partial Spearman correlation and linear and log-binomial regression.

RESULTS

Among 717 participants, 82% male, the median CMV IgG was 2716 (Q1, Q3: 807, 6672) IU/mL, all above the limit of quantification. Among 631 participants with imaging, there was no association between CMV IgG and CT-based muscle density or area, controlling for age (r = -0.03 and r = -0.01, respectively; P ≥ 0.38). Among 161 participants with physical function data, higher CMV IgG was associated with poorer overall modified Short Physical Performance Battery score ( P = 0.02), adjusted for age, nadir CD4, and high-sensitivity C-reactive protein.

CONCLUSIONS

Higher CMV IgG titer was associated with poorer physical function, not explained by previous immune compromise, inflammation, or muscle density or area. Further mechanistic studies are needed to understand this association and whether CMV-specific therapy can affect physical function in PWH.

Risk factors for clonal hematopoiesis of indeterminate potential in people with HIV: a report from the REPRIEVE trial

ABSTRACT

Clonal hematopoiesis of indeterminate potential (CHIP), the clonal expansion of myeloid cells with leukemogenic mutations, results in increased coronary artery disease (CAD) risk. CHIP is more prevalent among people with HIV (PWH), but the risk factors are unknown. CHIP was identified among PWH in REPRIEVE (Randomized Trial to Prevent Vascular Events in HIV) using whole-exome sequencing. Logistic regression was used to associate sociodemographic factors and HIV-specific factors with CHIP adjusting for age, sex, and smoking status. In the studied global cohort of 4486 PWH, mean age was 49.9 (standard deviation [SD], 6.4) years; 1650 (36.8%) were female; and 3418 (76.2%) were non-White. CHIP was identified in 223 of 4486 (4.97%) and in 38 of 373 (10.2%) among those aged ≥60 years. Age (odds ratio [OR], 1.07; 95% confidence interval [CI], 1.05-1.09; P < .0001) and smoking (OR, 1.37; 95% CI, 1.14-1.66; P < .001) associated with increased odds of CHIP. Globally, participants outside of North America had lower odds of CHIP including sub-Saharan Africa (OR, 0.57; 95% CI, 0.4-0.81; P = .0019), South Asia (OR, 0.45; 95% CI, 0.23-0.80; P = .01), and Latin America/Caribbean (OR, 0.56; 95% CI, 0.34-0.87; P = .014). Hispanic/Latino ethnicity (OR, 0.38; 95% CI, 0.23-0.54; P = .002) associated with significantly lower odds of CHIP. Among HIV-specific factors, CD4 nadir <50 cells/mm3 associated with a 1.9-fold (95%CI, 1.21-3.05; P = .006) increased odds of CHIP, with the effect being significantly stronger among individuals with short duration of antiretroviral therapy (ART; OR, 4.15; 95% CI, 1.51-11.1; P = .005) (Pinteraction= .0492). Among PWH at low-to-moderate CAD risk on stable ART, smoking, CD4 nadir, North American origin, and non-Hispanic ethnicity associated with increased odds of CHIP. This trial was registered at www.ClinicalTrials.gov as NCT02344290.

Postpartum Hepatitis C Linkage to Care Program in a Co-located Substance Use Disorders Treatment Model

PURPOSE

Hepatitis C virus (HCV) is increasingly prevalent in pregnancy and among people with substance use disorders (SUD). Highly effective treatments are now available for chronic HCV. Qualifying for HCV treatment often requires preauthorization and several clinical criteria, including laboratory assessment of liver function and other infectious diseases and liver imaging to assess for fibrosis. Linkage to care (LTC) models have been shown to assist with obtaining the necessary clinical information (laboratory assessment/liver imaging) and improving HCV treatment rates in non-pregnant individuals.

DESCRIPTION

Beginning in December 2020, a specialized LTC team identified patients with HCV viremia who were interested in postpartum treatment. The LTC team assisted patients with completing the necessary clinical criteria (laboratory assessment and liver imaging) for HCV treatment. Patients were then linked to infectious disease specialists who prescribed treatment to patients via telemedicine. Most patients identified with HCV were enrolled in our institution's co-located obstetric and SUD program, which provides continued care until 1 year postpartum.

ASSESSMENT

In 2019, an internal review identified that none of the 26 pregnant patients with HCV viremia in our co-located obstetric and SUD program were prescribed direct-acting antiviral (DAA) treatment within 12 months postpartum. Between December 2020 and July 2022, our HCV LTC team identified 34 patients with HCV who were eligible for treatment. Of these patients, 55% (19/34) obtained all necessary laboratory and liver imaging requirements and 79% (15/19) were prescribed DAA treatment after a telehealth visit with an infectious disease specialist. All fifteen patients who were prescribed treatment participated in the co-located obstetric and SUD program. The largest barrier to obtaining treatment was completing the necessary laboratory and liver imaging requirements for prescribing DAA. Only one patient who did not receive care in our co-located obstetric and SUD program had completed the necessary laboratory and liver imaging requirements to proceed with treatment but did not follow up with the infectious disease specialist for DAA treatment.

CONCLUSION

Our HCV LTC program was successful in treating postpartum patients for HCV if they participated in the co-located obstetric and SUD program at our institution. Creating a partnership with an infectious disease specialist and utilizing telemedicine were beneficial strategies to connect patients to treatment for HCV during the postpartum period.

Biological and Clinical Implications of the Vascular Endothelial Growth Factor Coreceptor Neuropilin-1 in Human Immunodeficiency Virus

Plasma vascular endothelial growth factor (VEGF) coreceptor neuropilin-1 (NRP-1) had the largest association with coronary plaque in the Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE) proteomics analysis. With little known about NRP-1 in people with human immunodeficiency virus (PWH), we explored its relation to other proteins in REPRIEVE and validated our findings through a Centers for AIDS Research Network of Integrated Clinical Systems (CNICS) case-cohort study by assessing its relation to host factors and incident cardiovascular disease and cancer. Within REPRIEVE, NRP-1 was associated with proteins involved in angiogenesis, signal transduction, immunoregulation, and cell migration/adhesion. Within CNICS, NRP-1 was associated with key host factors, including older age and male sex. NRP-1 was associated with an increased hazard of multiple cancers but a decreased prostate cancer risk. Finally, NRP-1 was most strongly associated with mortality and type 2 myocardial infarction. These data suggest that NRP-1 is part of a clinically relevant immunoregulatory pathway related to multiple comorbidities in PWH. Clinical Trials Registration. NCT02344290.

Effect of host factors and COVID-19 infection on the humoral immune repertoire in treated HIV

People with HIV (PWH) appear to be at higher risk for suboptimal pathogen responses and for worse COVID-19 outcomes, but the effects of host factors and COVID-19 on the humoral repertoire remain unclear. We assessed the antibody isotype/subclass and Fc-receptor binding Luminex arrays of non-SARS-CoV-2 and SARS-CoV-2 humoral responses among antiretroviral therapy-treated (ART-treated) PWH. Among the entire cohort, COVID-19 infection was associated with higher cytomegalovirus (CMV) responses (vs. the COVID- cohort ), potentially signifying increased susceptibility or a consequence of persistent inflammation. Among the COVID+ participants, (a) higher BMI was associated with a striking amplification of SARS-CoV-2 responses, suggesting exaggerated inflammatory responses, and (b) lower nadir CD4 was associated with higher SARS-CoV-2 IgM and FcγRIIB binding capacity, indicating poorly functioning extrafollicular and inhibitory responses. Among the COVID-19- participants, female sex, older age, and lower nadir CD4 were associated with unique repertoire shifts. In this first comprehensive assessment of the humoral repertoire in a global cohort of PWH, we identify distinct SARS-CoV-2-specific humoral immune profiles among PWH with obesity or lower nadir CD4+ T cell count, underlining plausible mechanisms associated with worse COVID-19-related outcomes in this setting. Host factors associated with the humoral repertoire in the COVID-19- cohort enhance our understanding of these important shifts among PWH.

Coronary Artery Plaque Composition and Severity Relate to the Inflammasome in People With Treated Human Immunodeficiency Virus

Background

Inflammasome activation is increased in people with human immunodeficiency virus (PWH), but its relationship with coronary plaque is poorly understood in this setting.

Methods

In a large human immunodeficiency virus cardiovascular prevention cohort, relationships between caspase-1, interleukin (IL)-1β, and IL-18 and coronary plaque indices were assessed by multivariate logistic regression.

Results

Higher IL-18 and IL-1β were associated with Leaman score, an integrative measure of plaque burden and composition.

Conclusions

As Leaman score >5 is associated with cardiovascular events in the general population, future work is needed to determine how the inflammasome relates to events and whether strategies to reduce its activation affect events or plaque progression among PWH.

Cytomegalovirus Immunoglobulin G (IgG) Titer and Coronary Artery Disease in People With Human Immunodeficiency Virus (HIV)

BACKGROUND

Cytomegalovirus (CMV) infection is thought to result in increased immune activation in people with human immunodeficiency virus (HIV, PWH). Although some data have linked asymptomatic CMV infection to cardiovascular disease among PWH, it remains unknown whether CMV is associated with increased or high-risk coronary plaque.

METHODS

The Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE) enrolled PWH aged 40-75 years on stable antiretroviral therapy (ART) with low-to-moderate atherosclerotic cardiovascular disease (ASCVD) risk. Among a subset of US REPRIEVE participants, coronary plaque was assessed by coronary computed tomography angiography. Here, we assessed the relationship between CMV immunoglobulin G (IgG) titer and (1) levels of immune activation, (2) inflammatory biomarkers, and (3) coronary plaque phenotypes at study entry.

RESULTS

Of 672 participants, mean age was 51 years, 83% were men, median ASCVD risk score was 4.5%, and 66% had current CD4+ T-cell count ≥500 cells/mm3. Higher CMV IgG quartile group was associated with older age and lower current and nadir CD4+ T-cell counts. CMV IgG titer was associated with specific inflammatory biomarkers (sCD163, MCP-1, interleukin [IL]-6, hsCRP) in univariate analysis, but not after controlling for HIV-specific factors. In contrast, CMV IgG titer was not associated with coronary artery disease indexes, including presence of plaque, coronary artery calcium (CAC) score >0, vulnerable plaque presence, or Leaman score >5.

CONCLUSIONS

No meaningful association was seen between CMV IgG titer and coronary artery disease indexes among ART-treated PWH at study enrollment. Longitudinal assessments in REPRIEVE will determine the relationship of CMV IgG titer to plaque progression and cardiovascular events.

CLINICAL TRIALS REGISTRATION

NCT02344290.

The importance of methods for site performance evaluation in REPRIEVE, a longitudinal, global, multicenter trial

BACKGROUND

REPRIEVE, the Randomized Trial to Prevent Vascular Events in HIV, is a multicenter, primary prevention trial evaluating whether a statin can prevent major cardiovascular events in people with HIV. REPRIEVE is conducted at >100 clinical research sites (CRSs) globally. Detailed, comprehensive, and novel methods for evaluating and communicating CRS performance are required to ensure trial integrity and data quality. In this analysis we describe a comprehensive multidimensional methodology for evaluating CRS performance.

METHODS

The REPRIEVE Data Coordinating and Clinical Coordinating Centers developed a robust system for evaluation of and communication with CRSs, designed to identify potential issues and obstacles to performance, provide real-time technical support, and make recommendations for process improvements to facilitate efficient trial execution. We describe these systems and evaluate their impact on participant retention, data management, and specimen management from 2019 to 2022, corresponding to the period from end of recruitment to present. This evaluation was based on pre-defined metrics, regular reviews, and bidirectional communication.

RESULTS

Participant retention, data management, and specimen management all remained steady over the three-year period, although metrics varied by country of enrollment. Targeted messaging relating to certain performance metrics was effective.

CONCLUSION

Site performance is vital to ensure trial integrity and achievement of key trial goals. This analysis demonstrates that utilization of a comprehensive approach allows for a thorough evaluation of CRS performance, facilitates data and specimen management, and enhances participant retention. Our approach may serve as a guidepost for maximizing future large-scale clinical trials' operational success and scientific rigor.

CLINICALTRIALS

gov Identifier: NCT02344290.

446. Hyperlactatemia and Nucleoside/Nucleotide Reverse Transcriptase Inhibitors (NRTI): Still present even with modern antiretroviral therapy (ART)

Background

Hyperlactatemia and lactic acidosis represent a rare but dangerous manifestation of mitochondrial toxicity associated with NRTIs. Although mitochondrial toxicity has been linked to the NRTI class, it is more prevalent with older agents such as zidovudine (AZT), didanosine (ddI) and stavudine (d4t).

Methods

Prompted by the diagnosis of symptomatic hyperlactatemia in 4 people with HIV on newer NRTIs between September 2019 and December 2021, we present a single-center case series to illustrate its subtle presentation and management. Hyperlactatemia was defined as a serum lactate of 1.6-4 mmol/L and lactic acidosis was defined as a serum lactate of &gt; 4mmol/L.

Results

75% of the patients were male, the mean age was 57.8 years, and 100% were Caucasian. 75% (3/4) were either overweight or obese (body mass index &gt; 25 kg/m2). 75% had a CD4 lymphocyte count &lt; 200 cells/mm3 at the time of human immunodeficiency virus (HIV) diagnosis and 50% had the diagnosis for &gt;10 years. The most common symptom reported was non-specific fatigue (100%), followed by widespread myalgias (75%). 1 patient reported severe peripheral neuropathy affecting activities of daily living and 1 patient reported palpitations and night sweats. The mean duration of symptoms prior to reporting was 27.5 months. At the time of diagnosis of symptomatic hyperlactatemia, 75% had a CD4 lymphocyte count &gt; 200 cells/mm3, the mean serum lactate was 2.7 mmol/L (1.9 mmol/L - 3.9 mmol/L), 50% were on abacavir (ABC) and lamivudine (3TC), and 50% were on tenofovir alafenamide (TAF) and emtricitabine (FTC). After stopping ART for 2 weeks, mean serum lactate decreased to 0.6 mmol/L (0.4 mmol/L – 1.1 mmol/L). 100% reported an improvement in quality of life after NRTI cessation and were managed with an NRTI-sparing regimen. Clinical characteristics are noted in Table 1.

Conclusion

This case series highlights the insidious nature of symptoms related to NRTI-associated mitochondrial toxicity including hyperlactatemia. Management strategies are not well defined for hyperlactatemia; however, NRTI-sparing regimens may offer improvement in quality of life. Despite improved tolerability of modern ART, clinicians should be aware of and monitor for symptoms of this potentially life-threatening side effect.

Disclosures

Carlos Malvestutto, MD MPH, Gilead Sciences: Advisor/Consultant|Viiv Healthcare: Advisor/Consultant.

2213. Increased Early Syphilis Detection and Treatment in an Urban Emergency Department During the COVID-19 Pandemic

Background

Many people at risk for sexually transmitted infections (STIs) utilize the emergency department (ED) for evaluation and treatment of STI-related complaints. Syphilis testing rates in the ED have historically been low. Following the implementation of a joint ED and Infectious Disease (ID) multidisciplinary quality improvement initiative designed to increase syphilis testing in this setting, we sought to evaluate the demographics and clinical outcomes for patients diagnosed with early syphilis in the ED.

Methods

A retrospective chart review of patients with positive syphilis test results from ED encounters at the Ohio State University Wexner Medical Center East Hospital between 1 January 2019 and 31 December 2021 was performed. Demographic and clinical information was obtained for patients diagnosed with early syphilis (primary, secondary or early latent syphilis).

Results

Since 2019, we have observed a significant increase early syphilis cases identified in our ED despite stable rates of testing (Figure 1). There were 55 cases of early syphilis, 3 with neurosyphilis (NS) at the time of diagnosis (Figure 2). Most cases were men (38/55; 69%), Black/African American (44/55; 80%), and symptomatic (48/55; 87%). Nine of 55 patients (16%) had HIV co-infection, 2 were new diagnoses at time of syphilis diagnosis. Most patients (44/55; 80%) completed appropriate treatment. Of the symptomatic patients, 17/45 (37%) received presumptive treatment in the ED (3 cases of NS excluded). Of those who received treatment after discharge from the ED, the median time to treatment completion was 3 days (range 0-30), with 11/24 (46%) returning to the ED for treatment. Figure 1.Figure 2.

Conclusion

As a result of a collaborative ED/ID STI testing initiative established at our institution, we have observed a significant increase in the number of symptomatic early syphilis cases identified in our ED between 2019 and 2021, with most patients completing treatment in a timely manner. This data show that the ED is an important and feasible setting for syphilis diagnosis and treatment when appropriate support systems are in place, including established communications with ID colleagues.

Disclosures

Carlos Malvestutto, MD MPH, Gilead Sciences: Advisor/Consultant|Viiv Healthcare: Advisor/Consultant Susan L. Koletar, MD, Gilead Sciences: Grant/Research Support.

Evidence Based Scarce Resource Allocation During the COVID-19 Pandemic: A Case Study of Bamlanivimab Administration in the Emergency Department

Background: Patients presenting for emergency department (ED) evaluation may be appropriate for treatment with monoclonal antibodies for mild to moderate COVID-19. While many sites have implemented infusion centers for these agents, EDs will continue to evaluate these patients where appropriate identification and efficient infusion of eligible patients is critical. Objectives: Patients receiving bamlanivimab in the EDs of an academic medical center are described. The primary objective was to describe operational metrics and secondary objectives reported clinical outcomes. Methods: Patients receiving bamlanivimab and discharged from the ED were included from November 16, 2020 to January 16, 2021 in the retrospective, observational cohort. Primary outcome was adherence to institutional criteria. Secondary outcomes included ED visit metrics, clinical characteristics, and return visits within 30 days. Risk factors for return visits were assessed with regression. Results: One hundred nineteen patients were included. Most (71%) were diagnosed with COVID-19 during the ED visit and median symptom duration was 3(IQR 2-5) days. Median number of risk factors for progression to severe disease was 2 (IQR 1-2). Thirty percent had a documented abnormal chest x-ray. Institutional criteria adherence was 99.2%. Median time from ED room to bamlanivimab was 4 (IQR 3.1-5.2) hours. Thirty patients had return visit within 30 days; 19 were COVID-19 related. Two multivariable regression models were analyzed for COVID-19 related return visit. Characteristics on ED presentation were considered in Model I: male gender (OR 3.01[0.97-9.31]), age (per 10 years) (OR 1.49[1.05-2.12]), African-American race (OR 3.46[1.09-11.06]), and symptom duration (per day) (OR 1.34[1.05-1.73]). Model II included labs and imaging acquired in ED. In Model II, age (per 10 years) (OR 1.52[1.07-2.16]) and abnormal CXR (OR 5.74[1.95-16.9]) were associated with COVID-19 related return visits. Conclusions: Administration of bamlanivimab to ED patients can be done efficiently, with the potential to reduce COVID-19 related return visits. Age and abnormal imaging were independent predictors of COVID-19 return visits.

Antiviral and clinical activity of bamlanivimab in a randomized trial of non-hospitalized adults with COVID-19

Anti-SARS-CoV-2 monoclonal antibodies are mainstay COVID-19 therapeutics. Safety, antiviral, and clinical efficacy of bamlanivimab were evaluated in the randomized controlled trial ACTIV-2/A5401. Non-hospitalized adults were randomized 1:1 within 10 days of COVID-19 symptoms to bamlanivimab or blinded-placebo in two dose-cohorts (7000 mg, n = 94; 700 mg, n = 223). No differences in bamlanivimab vs placebo were observed in the primary outcomes: proportion with undetectable nasopharyngeal SARS-CoV-2 RNA at days 3, 7, 14, 21, and 28 (risk ratio = 0.82-1.05 for 7000 mg [p(overall) = 0.88] and 0.81-1.21 for 700 mg [p(overall) = 0.49]), time to symptom improvement (median 21 vs 18.5 days [p = 0.97], 7000 mg; 24 vs 20.5 days [p = 0.08], 700 mg), or grade 3+ adverse events. However, bamlanivimab was associated with lower day 3 nasopharyngeal viral levels and faster reductions in inflammatory markers and viral decay by modeling. This study provides evidence of faster reductions in nasopharyngeal SARS-CoV-2 RNA levels but not shorter symptom durations in non-hospitalized adults with early variants of SARS-CoV-2.

Asymptomatic SARS-CoV-2 Infection Is Common Among ART-Treated People With HIV

BACKGROUND

Limited data are available regarding asymptomatic COVID-19 among people with HIV (PWH). Data on a representative subset of PWH enrolled in Randomized Trial to Prevent Vascular Events in HIV, a global clinical trial, are presented here.

METHODS

Randomized Trial to Prevent Vascular Events in HIV is an atherosclerotic cardiovascular disease prevention trial among 7770 PWH on antiretroviral therapy. Beginning April 2020, targeted data on coronavirus disease 2019 (COVID-19) diagnosis and symptoms were collected during routine trial visits. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection was defined as either COVID-19 clinical diagnosis or presence of SARS-CoV-2 Immunoglobulin G (IgG) or Immunoglobulin A (IgA) receptor binding domain protein (antispike) antibodies in the absence of prior COVID-19 vaccine.

RESULTS

The group (N = 2464) had a median age 53 years, 35% female sex, 47% Black or African American race, median CD4 count 649 c/mm 3 , and 97% with HIV VL <400 cp/m. SARS-CoV-2 infection occurred in 318 persons (13%): 58 with clinical diagnosis and 260 with detectable antibodies. Of these PWH, 304 completed symptom questionnaires: 121 (40%) reported symptoms, but 183 (60%) were asymptomatic. PWH with asymptomatic SARS-CoV-2 infection were more likely to be from low-income or middle-income regions, of Black or African American race, older in age, and with higher atherosclerotic cardiovascular disease risk score. Symptomatic COVID was more common with obesity, metabolic syndrome, and low HDL levels. CD4 counts and HIV viral suppression rates were similar among PWH with symptomatic vs. asymptomatic COVID.

CONCLUSIONS

Asymptomatic SARS-CoV-2 infection is common among antiretroviral therapy-treated PWH globally. We determined that 60% of infections in PWH were asymptomatic. HIV clinicians must remain vigilant about COVID-19 testing among PWH to identify asymptomatic cases.

Gut Microbiota, Plasma Metabolomic Profiles, and Carotid Artery Atherosclerosis in HIV Infection

BACKGROUND

Alterations in gut microbiota and blood metabolomic profiles have been implicated in HIV infection and cardiovascular disease. However, it remains unclear whether alterations in gut microbiota may contribute to disrupted host blood metabolomic profiles in relation to atherosclerosis, especially in the context of HIV infection.

METHODS

We analyzed cross-sectional associations between gut microbiota features and carotid artery plaque in 361 women with or at high risk of HIV (67% HIV+), and further integrated plaque-associated microbial features with plasma lipidomic/metabolomic profiles. Furthermore, in 737 women and men, we examined prospective associations of baseline gut bacteria-associated lipidomic and metabolomic profiles with incident carotid artery plaque over 7-year follow-up.

RESULTS

We found 2 potentially pathogenic bacteria, Fusobacterium and Proteus, were associated with carotid artery plaque; while the beneficial butyrate producer Odoribacter was inversely associated with plaque. Fusobacterium and Proteus were associated with multiple lipids/metabolites which were clustered into 8 modules in network. A module comprised of 9 lysophosphatidylcholines and lysophosphatidylethanolamines and a module comprised of 9 diglycerides were associated with increased risk of carotid artery plaque (risk ratio [95% CI], 1.34 [1.09-1.64] and 1.24 [1.02-1.51] per SD increment, respectively). Functional analyses identified bacterial enzymes in lipid metabolism associated with these plasma lipids. In particular, phospholipase A1 and A2 are the key enzymes in the reactions producing lysophosphatidylcholines and lysophosphatidylethanolamines.

CONCLUSIONS

Among individuals with or at high risk of HIV infection, we identified altered gut microbiota and related functional capacities in the lipid metabolism associated with disrupted plasma lipidomic profiles and carotid artery atherosclerosis.

The Evolving Landscape of ASCVD Risk Among Patients With HIV

Summarize the multiple atherosclerotic cardiovascular disease (ASCVD) risk factors commonly present in persons living with human immunodeficiency virus (HIV). Identify factors for clinical assessment and risk stratification in persons with HIV (PWH). Discuss the clinical challenges of dyslipidemia management among the HIV population, including avoidance of major drug-drug interactions (DDIs). Implement appropriate and safe statin therapy in PWH and elevated ASCVD risk.

COVID-19 Vaccination Rates in a Global HIV Cohort

Little is known regarding coronavirus disease 2019 (COVID-19) vaccination rates in people with HIV (PWH), a vulnerable population with significant morbidity from COVID-19. We assessed COVID-19 vaccination rates among 6952 PWH in the Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE) compared to region- and country-specific vaccination data. The global probability of COVID-19 vaccination through end of July 2021 was 55% among REPRIEVE participants with rates varying substantially by Global Burden of Disease (GBD) superregion. Among PWH, factors associated with COVID-19 vaccination included residence in high-income regions, age, white race, male sex, body mass index, and higher cardiovascular risk. Clinical Trials Registration. NCT02344290.

A Collaborative Intervention Between Emergency Medicine and Infectious Diseases to Increase Syphilis and HIV Screening in the Emergency Department

BACKGROUND

Sexually transmitted infections (STIs) are a common reason for evaluation in the emergency department (ED). Given the overlapping risk factors for STIs, patients screened for gonorrhea and chlamydia should be tested for syphilis and HIV. Syphilis and HIV testing rates in the ED have been reported to be low. The study objective was to examine whether collaboration between emergency medicine (EM) and infectious disease (ID) providers improved syphilis and HIV testing in the ED.

METHODS

A multidisciplinary team of EM and ID providers was formed to identify and address barriers to syphilis and HIV testing in the ED. Syphilis, HIV, chlamydia, and gonorrhea testing and infection rates were calculated and compared during 2 time periods: preintervention (January 1, 2012-December 30, 2017) and postintervention (November 1, 2018-November 30, 2019). We also extracted clinical and laboratory data from patients with positive syphilis and HIV results during the study period.

RESULTS

The most commonly cited barrier to syphilis and HIV testing was concern about follow-up of positive results. Compared with the preintervention period, syphilis and HIV testing rates increased significantly in the postintervention period (incidence rate ratios, 30.70 [P < 0.0001] and 28.99 [P < 0.0001] for syphilis and HIV, respectively). The postintervention period was also associated with a significant increase in the identification of patients with positive syphilis and HIV results (incidence rate ratios, 7.02 [P < 0.0001] and 2.34 [P = 0.03], respectively).

CONCLUSIONS

Collaboration between EM and ID providers resulted in a significant increase in syphilis and HIV testing and diagnosis in the ED.

Bamlanivimab reduces nasopharyngeal SARS-CoV-2 RNA levels but not symptom duration in non-hospitalized adults with COVID-19: A Phase 2 Randomized Clinical Trial

Importance

The antiviral activity and efficacy of anti-SARS-CoV-2 monoclonal antibody (mAb) therapies to accelerate recovery from COVID-19 is important to define.

Objective

To determine safety and efficacy of the mAb bamlanivimab to reduce nasopharyngeal (NP) SARS-CoV-2 RNA levels and symptom duration.

Design

ACTIV-2/A5401 is a randomized, blinded, placebo-controlled platform trial. Two dose cohorts were enrolled between August 19 and November 17, 2020 for phase 2 evaluation: in the first, participants were randomized 1:1 to bamlanivimab 7000 mg versus placebo, and in the second to bamlanivimab 700 mg versus placebo. Randomization was stratified by time from symptom onset (≤ or >5 days) and risk of progression to severe COVID-19 ("higher" vs "lower").

Setting

Multicenter trial conducted at U.S. sites.

Participants

Non-hospitalized adults ≥18 years of age with positive SARS-CoV-2 antigen or nucleic acid test within 7 days, ≤10 days of COVID-19 symptoms, and with oxygen saturation ≥92% within 48 hours prior to study entry.

Intervention

Single infusion of bamlanivimab (7000 or 700 mg) or placebo.

Main Outcomes and Measures

Detection of NP SARS-CoV-2 RNA at days 3, 7, 14, 21, and 28, time to improvement of all of 13 targeted COVID-19 symptoms by daily self-assessment through day 28, and grade 3 or higher treatment emergent adverse events (TEAEs) through day 28. Secondary measures included quantitative NP SARS-CoV-2 RNA, all-cause hospitalizations and deaths (composite), area under the curve of symptom scores from day 0 through day 28, plasma bamlanivimab concentrations, plasma and serum inflammatory biomarkers, and safety through week 24.

Results

Ninety-four participants were enrolled to the 7000 mg cohort and 223 to the 700 mg cohort and initiated study intervention. The proportion meeting protocol criteria for "higher" risk for COVID-19 progression was 42% and 51% for the 7000 and 700 mg cohort, respectively. Median time from symptom onset at study entry for both cohorts was 6 days. There was no difference in the proportion with undetectable NP SARS-CoV-2 RNA at any post-treatment timepoints (risk ratio compared to placebo, 0.82-1.05 for 7000 mg dose [overall p=0.88] and 0.81-1.21 for 700 mg dose [overall p=0.49]), time to symptom improvement (median of 21 vs 18.5 days, p=0.97, for 7000 mg bamlanivimab vs placebo and 24 vs 20.5 days, p=0.08, for 700 mg bamlanivimab vs placebo), or grade 3+ TEAEs with either dose compared to placebo. Median NP SARS-CoV-2 RNA levels were lower at day 3 and C-reactive protein, ferritin, and fibrinogen levels significantly reduced at days 7 and 14 for bamlanivimab 700 mg compared to placebo, with similar trends observed for bamlanivimab 7000 mg. Viral decay modeling supported more rapid decay with bamlanivimab compared to placebo.

Conclusions and Relevance

Treatment with bamlanivimab 7000 mg and 700 mg was safe and compared to placebo led to more rapid reductions in NP SARS-CoV-2 RNA and inflammatory biomarkers, but did not decrease time to symptom improvement. The clinical utility of mAbs for outcomes other than hospitalizations and deaths is uncertain.

Trial Registration

ClinicalTrials.gov Identifier: NCT04518410.

1357. Patterns of Extragenital Gonorrhea and Chlamydia Testing at a Community-Based Academic Emergency Department in Columbus, Ohio

Background

Sexually transmitted infections (STI), including gonorrhea (GC) and chlamydia (CT), are on the rise in the U.S. and emergency department (ED) visits for STI-related complaints are common. The ED plays a key role in testing for GC/CT. In addition to testing genital sites for GC/CT, the Centers for Disease Control and Prevention (CDC) recommends extragenital testing (oral/rectal) based on sexual history and exposure. In this study, we reviewed the proportion of extragenital GC/CT tests performed at a community-based academic ED in Columbus, Ohio.

Methods

This study was a retrospective chart review of all GC/CT tests performed at the Ohio State University Hospitals East ED from November 1, 2018 to November 1, 2020. Clinical and demographic information was collected for all patients who received extragenital GC/CT testing, including symptoms, test results, and documentation of sexual practices. A random convenience sample of 100 patients who only had genital GC/CT testing performed was also reviewed.

Results

Of the 5644 GC/CT tests performed during the study period, only 364 (6.4%) were from extragenital sites, which included 311 (5.5%) from oral and 53 (< 1%) from rectal sites. Of the 100 patients reviewed who did not have extragenital GC/CT testing performed, only 5 (5%) had documentation of sexual practices, compared with 177/311 (56.9%) of those who had oral testing and 27/31 (50.94%) who had rectal testing performed. In the cohort of 100 patients who did not receive extra genital testing 28% were male and average age was 29. In the group who received extragenital testing 40% were male and average age was 30. The most common complaint across all groups was genital discharge

Conclusion

Despite the substantial number of CG/CT tests performed in the ED, only a very small proportion were from extragenital sites. Interventions are needed to identify and overcome barriers to extragenital GC/CT testing in the ED.

Disclosures

Mohammad Mahdee Sobhanie, M.D., Regeneron (Scientific Research Study Investigator)Regeneron (Scientific Research Study Investigator, Was a sub-investigator for Regeneron 2066 and 2069) Carlos Malvestutto, M.D., Lilly (Scientific Research Study Investigator)Regeneron Inc. (Scientific Research Study Investigator)ViiV Healthcare (Advisor or Review Panel member)

535. Comparison of Outcomes in Patients Positive for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection After Monoclonal Antibody Therapy (MAT) with Bamlamivimab or Casirivimab-Imdevimab

Background

Limited options currently exist for treatment of patients diagnosed with symptomatic coronavirus 2019 (COVID-19). Monoclonal antibody therapy (MAT) has been investigated as a therapeutic option for symptomatic COVID-19 patients in the outpatient setting at high-risk for progression to severe disease based on emergency use authorization (EUA) criteria. No published studies have compared outcomes for patients treated with different MAT for COVID-19.

Methods

This was a single-center, retrospective cohort study at The Ohio State University Wexner Medical Center to compare COVID-19-related emergency room (ER) visits, admissions, and mortality at 30 days after MAT infusion for adult patients with symptomatic SARS-CoV-2 between November 16, 2020 and February 2, 2021 who received bamlanivimab versus those who received casirivimab-imdevimab. Statistical analysis used logistic regression analysis to determine the odds ratio (OR) to evaluate the relationship between patient characteristics, MAT, and outcomes.

Results

The cohort included 943 patients with SARS-CoV-2 who received MAT, including 658 patients who received bamlanivimab and 285 who received casirivimab-imdevimab. Outcome results between patients who received bamlanivimab and casirivimab-imdevimab showed no statistically significant difference seen in the number of COVID-19 related ER visits (3.2% vs 3.5%, p = 0.80), hospital admissions (4.6% vs 2.8%, p = 0.21), or mortality (0.5% vs 0.7%, p = 0.63). Multivariate analysis showed no statistically significant difference in outcomes between the groups when accounting for potential confounders. As reflected in the Table, chronic lymphocytic leukemia (CLL), gender, and asthma were associated with increased COVID-19 related ER visit within 30 days of infusion and age, chronic obstructive pulmonary disease, CLL, and lupus were associated with increased risk for COVID-19 related admission within 30 days of infusion. Age and obesity with body mass index greater than 35 mg/kg² were associated with increased risk for COVID-19 related mortality at 30 days.

Conclusion

COVID-19 related outcomes were similar when comparing patients with COVID-19 treated with bamlanivimab versus those treated with casirivimab-imdevimab.

Disclosures

Mohammad Mahdee Sobhanie, M.D., Regeneron (Scientific Research Study Investigator)Regeneron (Scientific Research Study Investigator, Was a sub-investigator for Regeneron 2066 and 2069) Carlos Malvestutto, M.D., Lilly (Scientific Research Study Investigator)Regeneron Inc. (Scientific Research Study Investigator)ViiV Healthcare (Advisor or Review Panel member)

835. Improvement in Diet Attenuates Antiretroviral Therapy (ART) Associated Weight Gain in Persons with Human Immunodeficiency Virus (PWH)

Background

Weight gain among PWH on ART is a growing clinical concern. We explore factors associated with weight gain at The Ohio State University Wexner Medical Center Infectious Diseases Clinic.

Methods

This was a single-center, retrospective, cohort study of adult PWH on ART for at least 3 months seen at our clinic from 1/1/2015 to 1/1/2019. Patients with CD4+ T cell count < 200 cells/mm³, viral load >200 copies/mL, history of malignancy, or pregnancy were excluded. 870 patients met criteria. Patient demographics, lifestyle factors, medical co-morbidities, concurrent medications, and ART regimens were documented during the study period. The primary outcome was percent weight change over the follow up period. Secondary outcome was the odds of > 5kg weight gain over the study period. The effects of concurrent medications, medical comorbidities, ART combinations, and self-reported lifestyle behaviors on these outcomes were modeled using mixed effect linear and logistic regression analysis.

Results

At baseline, 83.6% were male, 29.2% were African American, and 65.6% had a body mass index ≥ 25 kg/m. Over a mean follow up of 1.86 years, the study population gained a mean percent weight of 2.12 ± 0.21% (p< 0.001) with an odds of weight gain >5kg of 0.293 (p< 0.001). Male sex and increasing age were significantly associated with a decrease in percent weight over the study period as reflected in the table below. Diet was also significantly associated with a decrease in percent weight change over the study period of -1.99 ± 0.47 %, p= < 0.001 and a lower odds of > 5kg of weight gain (OR= 0.70, 95% CI= 0.50 – 0.97, p=0.03). In regression models, combination therapy with tenofovir alafenamide (TAF) and integrase strand transfer inhibitor (INSTI) containing regimens were significantly associated with an increase in percent weight over the study period. Other significant factors including demographics and ART regimens are noted in Table 1.

Table 1. Multivariable Regression Models*

Conclusion

Weight gain in PWH is multifactorial. Key factors associated with weight gain include combination therapy with TAF, particularly when combined with an INSTI. This data highlights the influential role of diet in PWH at risk of ART-associated weight gain.

Disclosures

Carlos Malvestutto, M.D., Lilly (Scientific Research Study Investigator)Regeneron Inc. (Scientific Research Study Investigator)ViiV Healthcare (Advisor or Review Panel member)

822. Tenofovir Alafenamide (TAF) is an Independent Risk Factor for Hyperlipidemia in Persons with Human Immunodeficiency Virus (HIV) on Antiretroviral Therapy (ART)

Background

ART-associated weight gain, metabolic disorders, and co-morbidities such as cardiovascular disease are challenges in long-term human immunodeficiency virus (HIV) care. We explore the effects of different ART classes on lipids at The Ohio State University Medical Center Infectious Diseases Clinic.

Methods

This was a retrospective, cohort study of adult PWH on ART for ≥ 3 months seen at our clinic from 1/1/2015 to 1/1/2017. Patients with CD4+ count &lt; 200 cells/mm3 and viral load &gt;200 copies/mL, history of malignancy, or pregnancy were excluded. Lipid values were collected over the study period. The primary outcome was change in total cholesterol (TC), high density lipoprotein (HDL) cholesterol, and non-HDL cholesterol over the study period. Multivariable regression was used to model these outcomes.

Results

Among 411 PWH who met criteria, 87.4% were male, and 43.3% had a baseline diagnosis of hyperlipidemia. 21.1% were on a protease inhibitor (PI), 45% were on a non-nucleoside reverse transcriptase inhibitor (NNRTI), and 37% were on an integrase strand transfer inhibitor (INSTI). 70.1% were on tenofovir disoproxil fumarate (TDF)/ emtricitabine (FTC), 20.7% were on abacavir (ABC)/ lamivudine (3TC), and 4.4% were on TAF/FTC. The mean population (MP) difference in TC was -1.54 ± 1.34 mg/dL (p=0.25), the MP difference in non-HDL cholesterol was -1.78 ± 1.26 mg/dL (p=0.16), and the MP difference in HDL cholesterol was 0.24 ± 0.43 mg/dL (p=0.6). In multivariable linear regression models (Table 1), TAF/FTC was associated with a change of TC of 18.2 ± 6.4 mg/dL (P= 0.005), a change of non-HDL cholesterol of 12.0 ± 6.0 mg/dL (p=0.046), and a change of HDL cholesterol of 6.2 ± 2.1 mg/dL (p=0.003). These models included terms for months of follow up, male gender and baseline hyperlipidemia. Though race, diabetes mellitus, and ethnicity were not significant in the model, after adjustments for them, PWH on TAF/FTC showed a change of TC of 18.0 ± 6.4 mg/dL (p=0.005), a change of non-HDL cholesterol of 11.8 ± 6.0 mg/dL (P=0.051), and a change of HDL of 6.2 ± 2.1 (p=0.03).

Multivariable Linear Regression Models for Change in Total Cholesterol and Non-HDL Cholesterol

Conclusion

Prior studies have shown an increase in lipid levels associated with TAF compared to TDF. This study shows that TAF is an independent risk factor for increased TC, non-HDL cholesterol, and HDL cholesterol in the PWH population as a whole.

Disclosures

Carlos Malvestutto, M.D., Lilly (Scientific Research Study Investigator)Regeneron Inc. (Scientific Research Study Investigator)ViiV Healthcare (Advisor or Review Panel member)

318. Description of Patients Readmitted within 30 Days from COVID-19 Hospitalization

Background

Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has led to increased hospitalizations and utilization of critical care services. There are few studies describing co-morbidities and demographics associated with patients re-admitted within 30-days of discharge. The purpose of this study is to describe this patient population.

Methods

This was a single-center, retrospective study at The Ohio State University Wexner Medical Center to identify patients who were admitted secondary to SARS-CoV-2 and required readmission within 30 days due to complications that might be associated with COVID-19. Adults admitted between 3/15/2020 and 11/15/2020 were included in this study. Baseline demographics including age, gender and race in addition to select comorbidities were identified.

Results

250 patients were identified who were readmitted for various reasons. Readmitted patients had a median age of 55 years, 44% were male, and 41.2% were Black/African American. 62.4% of the population was obese (BMI ≥30 kg/m2) with 21.6% with a BMI ≥ 40 kg/m2. The top three co-morbidities seen included Diabetes Mellitus (DM) (32.2%), Hyperlipidemia (48.3%) and Hypertension (51.7%).

Conclusion

Though this study lacked a comparator group, it is clear that patients readmitted with all cause etiologies were disproportionally Black/African-American and obese, with a high prevalence of DM, hyperlipidemia, and hypertension. We recommend close monitoring of patients in these groups to reduce COVID19 readmissions. This is the first step in identifying which patients may be more likely to develop complications and required readmission, the next step is to compare these patients to those that were not readmitted to develop a risk model for readmission.

Disclosures

Carlos Malvestutto, M.D., Lilly (Scientific Research Study Investigator)Regeneron Inc. (Scientific Research Study Investigator)ViiV Healthcare (Advisor or Review Panel member) Mohammad Mahdee Sobhanie, M.D., Regeneron (Scientific Research Study Investigator)Regeneron (Scientific Research Study Investigator, Was a sub-investigator for Regeneron 2066 and 2069)

Assessment of Obesity and Cardiometabolic Status by Integrase Inhibitor Use in REPRIEVE: A Propensity-Weighted Analysis of a Multinational Primary Cardiovascular Prevention Cohort of People With Human Immunodeficiency Virus

BACKGROUND

Emerging data demonstrate that the use of integrase inhibitor (INSTI)-based antiretroviral treatment (ART) is associated with increased weight, but the cardiometabolic health consequences of increased weight remains poorly understood.

METHODS

This analysis examined INSTI use (>6 months) at entry among REPRIEVE participants enrolled in High Income and Latin America/Caribbean Global Burden of Disease regions. Primary analyses used linear and logistic regression; secondary analyses used quantile regression to examine differences across the full data distribution. Characteristics of those with and without INSTI use were balanced using inverse probability of treatment weighting.

RESULTS

Among 4500 REPRIEVE participants, 1848 were on an INSTI-based regimen at entry for an average of 2.1 ± 1.8 years. Integrase inhibitor use (vs no INSTI use) was associated with higher odds of obesity (odds ratio [OR], 1.63; 95% confidence interval [CI], 1.4-1.9) and higher mean body mass index ([BMI] +1.5kg/m2; 95% CI, 1.0-1.9) and waist circumference (+3.6cm; 95% CI, 2.6-4.6). Differences in weight related to INSTI use were greater in the upper tails of the distribution (+3.1kg/m2 [95% CI, 1.9-4.4] at the 90th centile vs +0.7kg/m2 [95% CI, 0.2-1.2] at the 50th centile) and among women and nonwhite participants, with sex and race having an additive effect on BMI. Conversely, INSTI use was not associated with differences in glucose, low-density lipoprotein cholesterol, or higher odds of metabolic syndrome or hypertension.

CONCLUSIONS

Differences in weight and waist circumference associated with INSTI use are (1) not uniform across people with human immunodeficiency virus, (2) greatest among women and nonwhites, and (3) concentrated at the upper tails of weight distribution. These data identify at-risk subgroups for whom long-term cardiovascular disease outcomes should be carefully assessed.

Assessment of Coronary Artery Disease With Computed Tomography Angiography and Inflammatory and Immune Activation Biomarkers Among Adults With HIV Eligible for Primary Cardiovascular Prevention

IMPORTANCE

Cardiovascular disease (CVD) is increased among people with HIV (PWH), but little is known regarding the prevalence and extent of coronary artery disease (CAD) and associated biological factors in PWH with low to moderate traditional CVD risk.

OBJECTIVES

To determine unique factors associated with CVD in PWH and to assess CAD by coronary computed tomography angiography (CTA) and critical pathways of arterial inflammation and immune activation.

DESIGN, SETTING, AND PARTICIPANTS

This cohort study among male and female PWH, aged 40 to 75 years, without known CVD, receiving stable antiretroviral therapy, and with low to moderate atherosclerotic cardiovascular disease (ASCVD) risk according to the 2013 American College of Cardiology/American Heart Association pooled cohort equation, was part of the Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE), a large, ongoing primary prevention trial of statin therapy among PWH conducted at 31 US sites. Participants were enrolled from May 2015 to February 2018. Data analysis was conducted from May to December 2020.

EXPOSURE

HIV disease.

MAIN OUTCOMES AND MEASURES

The primary outcome was the prevalence and composition of CAD assessed by coronary CTA and, secondarily, the association of CAD with traditional risk indices and circulating biomarkers, including insulin, monocyte chemoattractant protein 1 (MCP-1), interleukin (IL) 6, soluble CD14 (sCD14), sCD163, lipoprotein-associated phospholipase A2 (LpPLA2), oxidized low-density lipoprotein (oxLDL), and high-sensitivity C-reactive protein (hsCRP).

RESULTS

The sample included 755 participants, with a mean (SD) age of 51 (6) years, 124 (16%) female participants, 267 (35%) Black or African American participants, 182 (24%) Latinx participants, a low median (interquartile range) ASCVD risk (4.5% [2.6%-6.8%]), and well-controlled viremia. Overall, plaque was seen in 368 participants (49%), including among 52 of 175 participants (30%) with atherosclerotic CVD (ASCVD) risk of less than 2.5%. Luminal obstruction of at least 50% was rare (25 [3%]), but vulnerable plaque and high Leaman score (ie, >5) were more frequently observed (172 of 755 [23%] and 118 of 743 [16%], respectively). Overall, 251 of 718 participants (35%) demonstrated coronary artery calcium score scores greater than 0. IL-6, LpPLA2, oxLDL, and MCP-1 levels were higher in those with plaque compared with those without (eg, median [IQR] IL-6 level, 1.71 [1.05-3.04] pg/mL vs 1.45 [0.96-2.60] pg/mL; P = .008). LpPLA2 and IL-6 levels were associated with plaque in adjusted modeling, independent of traditional risk indices and HIV parameters (eg, IL-6: adjusted odds ratio, 1.07; 95% CI, 1.02-1.12; P = .01).

CONCLUSIONS AND RELEVANCE

In this study of a large primary prevention cohort of individuals with well-controlled HIV and low to moderate ASCVD risk, CAD, including noncalcified, nonobstructive, and vulnerable plaque, was highly prevalent. Participants with plaque demonstrated higher levels of immune activation and arterial inflammation, independent of traditional ASCVD risk and HIV parameters.

Associations Between HIV Serostatus and Cardiac Structure and Function Evaluated by 2-Dimensional Echocardiography in the Multicenter AIDS Cohort Study

Background

We aimed to investigate whether there are differences in cardiac structure and systolic and diastolic function evaluated by 2‐dimensional echocardiography among men living with versus without HIV in the era of combination antiretroviral therapy.

Methods and Results

We performed a cross‐sectional analysis of 1195 men from MACS (Multicenter AIDS Cohort Study) who completed a transthoracic echocardiogram examination between 2017 and 2019. Associations between HIV serostatus and echocardiographic indices were assessed by multivariable regression analyses, adjusting for demographics and cardiovascular risk factors. Among men who are HIV+, associations between HIV disease severity markers and echocardiographic parameters were also investigated. Average age was 57.1±11.9 years; 29% of the participants were Black, and 55% were HIV+. Most men who were HIV+ (77%) were virally suppressed; 92% received combination antiretroviral therapy. Prevalent left ventricular (LV) systolic dysfunction (ejection fraction <50%) was low and HIV serostatus was not associated with left ventricular ejection fraction. Multivariable adjustment models showed that men who were HIV+ versus those who were HIV− had greater LV mass index and larger left atrial diameter and right ventricular (RV) end‐diastolic area; lower RV function; and higher prevalence of diastolic dysfunction. Higher current CD4+ T cell count ≥400 cell/mm³ versus <400 was associated with smaller LV diastolic volume and RV area. Virally suppressed men who were HIV+ versus those who were HIV− had higher indexed LV mass and left atrial areas and greater diastolic dysfunction.

Conclusions

HIV seropositivity was independently associated with greater LV mass index, left atrial and RV sizes, lower RV function and diastolic abnormalities, but not left ventricular ejection fraction, which may herald a future predisposition to heart failure with preserved ejection fraction among men living with HIV.

951. Weight Gain Associated With Antiretroviral Therapy

Background

Obesity is a global public health crisis with a growing prevalence in persons with human immunodeficiency virus (PWH) population. In this study, we aimed to investigate factors associated with weight gain in the PWH population.

Methods

This was a single-centered, retrospective cohort study of our clinic patient population from January 1, 2015 to January 1, 2019. Patients with human immunodeficiency virus (HIV) were identified from the electronic health record and a randomized sample of 300 patients who had at least two follow up appointments, were on antiretroviral therapy, and had viral loads less than 200 were evaluated. The primary outcome was weight change over follow up. Cox Proportional Hazards models were used, taking a weight gain > 3 kg as the outcome, and the time on therapy between visits as the time to event. Robust linear regression was used to model mean changes in weight, accounting for influential observations. All analysis were performed in STATA 16.0.

Table 1

Results

At baseline, 87% were male, 63% were white, and 65% were overweight/obese. 30% were on a protease inhibitor, 46% were on non-nucleoside reverse transcriptase inhibitor, and 37% were on an integrase inhibitor. 64% were on Tenofovir disoproxil (TDF), 8% were on Tenofovir alafenamide (TAF), and 19% were on Abacavir. Mean weight change over follow up was significantly increased at 1.31 kg (95% CI = 0.58 – 2.04 kg, p= 0.0004). TAF use and male gender were significantly associated with risk of weight gain > 3 kg in univariate analysis [respectively, OR = 2.53, 95% CI = 1.30 – 4.92, p = 0.006; OR = 2.60, 95% CI = 1.05 – 6.45, p = 0.04]. In multivariate analysis, TAF use was significantly associated with weight gain > 3 kg, while male gender was of borderline significance [respectively, OR = 2.29, 95% CI = 1.17 – 4.47, p = 0.01; OR = 2.40, 95% CI = 0.96 – 5.97, p=0.060]. Significant factors associated with weight change are noted in Table 1.

Conclusion

As PWH are living longer on effective ARV therapy, monitoring for weight gain is required as obesity contributes to morbidity and mortality from cardiovascular disease and metabolic diseases. Key factors for weight gain in our clinic population include male gender, baseline diagnosis of hypertension, use of TAF, bictegravir use, and rilpivirine use.

Disclosures

Carlos Malvestutto, MD, Gilead Sciences (Advisor or Review Panel member)ViiV Healthcare (Advisor or Review Panel member)

Successful recruitment of a multi-site international randomized placebo-controlled trial in people with HIV with attention to diversity of race and ethnicity: critical role of central coordination

Background: The Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE) is a multicenter, randomized, placebo-controlled trial, designed to test whether a statin medication can prevent cardiovascular disease in people with HIV. REPRIEVE recently completed enrollment of 7557 participants at over 100 clinical sites globally. Participant groups of focus were women, and racial and ethnic minorities.Objective: To describe recruitment methods and strategies developed by the REPRIEVE Clinical Coordinating Center (CCC) and share best practices learned from the recruitment process.Methods: Enrollment targets were agreed upon with the primary funder, the National Heart, Lung, and Blood Institute (NHLBI) and were milestone driven. Milestones included number of sites activated, number of participants enrolled within specific time frames, and proportion of women and minorities enrolled. Strategies to achieve these milestones included structured interviews with site-designated REPRIEVE Recruitment Champions to develop best practices, development of a multimedia campaign, and site level recruitment support.Results: Recruitment initiated March, 2015 and completed March, 2019. The final accrual target was 7500 participants over 48 months. The trial met this target within the time specified. Overall, 10,613 screens were completed, 48% of participants enrolled from sites outside of North America, 32% were female, 44% were Black or African American, and 25% were Hispanic or Latino.Conclusions: REPRIEVE met its overall projected recruitment goal by using multiple, simultaneous strategies to specifically target a diverse population including minority subgroups. REPRIEVE benefited from the development of recruitment strategies with clear targets and communication of accrual targets to study teams.

416. Improvement in Syphilis and HIV Screening Rates at a Community-Based Emergency Department in Columbus, Ohio: Six Month Post-Intervention Analysis

Background

Sexually transmitted infections (STIs) disproportionally affect individuals living in underserved areas and Emergency Departments (ED) can play a major role in STI screening. Given the overlapping risk factors for STIs, patients screened for gonorrhea and chlamydia should also be screened for syphilis and HIV. Rates of syphilis/HIV screening in the ED are very low and barriers include lack of knowledge about the risk/prevalence, difficulty with results interpretation, and concerns about follow-up.

Methods

The main study objective was to improve rates of syphilis/HIV screening in a community-based ED in Columbus, OH. A team of clinical providers, case managers, and social workers was formed to address barriers to screening. Using root cause analysis and data feedback, a multistep intervention that included provider education along with expert review of syphilis/HIV results was implemented to ensure proper screening, treatment and rapid linkage to care. Syphilis/HIV screening rates in the ED were compared between two periods: 2012–2017 (pre-intervention) and November 2018–April 2019 (post-intervention).

Results

Between 2012 and 2017, there were 24,427 ED encounters where any STI test was ordered. There were 23,652 (97%) tests for chlamydia, 23,637 (97%) for gonorrhea, 254 (1%) for syphilis, and 466 (2%) for HIV. Twenty-four (0.1%) encounters had screening that included all four tests. Six months after starting the intervention, there were 1,590 encounters where any STI test was ordered. There were 1,444 (91%) tests for chlamydia, 1,446 (91%) for gonorrhea, 493 (31%) for syphilis and 591 (37%) for HIV. Four hundred thirty-eight (28%) of encounters had screening that included all four tests.

Conclusion

Collaborative and practical interventions aimed at improving syphilis/HIV testing have resulted in dramatic increases in syphilis, HIV, and comprehensive STI screening (31-, 19-, 280-fold, respectively) over a relatively short post-intervention period. Additional steps are planned with the goal to further increase screening rates and improve linkage to prevention and treatment programs.

Disclosures

All authors: No reported disclosures.

Rationale and design of the Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE)

BACKGROUND

Cardiovascular disease (CVD) is more frequent among people with HIV (PWH) and may relate to traditional and nontraditional factors, including inflammation and immune activation. A critical need exists to develop effective strategies to prevent CVD in this population.

METHODS

The Randomized Trial to Prevent Vascular Events in HIV (REPRIEVE) (A5332) is a prospective, randomized, placebo-controlled trial of a statin strategy for the primary prevention of major adverse cardiovascular events (MACE) in PWH with low to moderate traditional risk. At least 7,500 PWH, 40-75 years of age, on stable antiretroviral therapy, will be randomized to pitavastatin calcium (4 mg/d) or identical placebo and followed for up to 8 years. Participants are enrolled based on the 2013 American College of Cardiology (ACC)/American Heart Association (AHA) atherosclerotic cardiovascular disease (ASCVD) risk score and low-density lipoprotein cholesterol (LDL-C) level with a goal to identify a low- to moderate-risk population who might benefit from a pharmacologic CVD prevention strategy. Potential participants with a risk score ≤ 15% were eligible based on decreasing LDL-C thresholds for increasing risk score >7.5% (LDL-C <190 mg/dL for risk score <7.5%, LDL-C <160 mg/dL for risk score 7.6%-10%, and LDL-C<130 mg/dL for risk score 10.1%-15%). The primary objective is to determine effects on a composite end point of MACE. Formal and independent adjudication of clinical events will occur using standardized criteria. Key secondary end points include effects on MACE components, all-cause mortality, specified non-CVD events, AIDS and non-AIDS events, and safety.

RESULTS

To date, REPRIEVE has enrolled >7,500 participants at approximately 120 sites across 11 countries, generating a diverse and representative population of PWH to investigate the primary objective of the trial.

CONCLUSIONS

REPRIEVE is the first trial investigating a primary CVD prevention strategy in PWH. REPRIEVE will inform the field of the efficacy and safety of a statin strategy among HIV-infected participants on antiretroviral therapy and provide critical information on CVD mechanisms and non-CVD events in PWH.

1492. Chlamydia, Gonorrhea, Syphilis and HIV Screening among Men Presenting with STI-Related Complaints at a Community-Based Emergency Department in Columbus, Ohio: A 5-Year Retrospective Study

Background

Sexually transmitted infections (STIs) disproportionally affect individuals living in poor and underserved areas of the United States. Emergency Departments (ED) are often the only point of healthcare access for these at-risk individuals. As such, the ED often serves a key role in STI screening. The purpose of this study was to review STI screening practices for men at an urban and community-based ED affiliated with a large academic medical center in Columbus, Ohio.

Methods

Retrospective review of all ED visits from January 2012 to December 2017. A total of 279,929 patient-visits were analyzed for male patients by (1) exposure to an STI (2) STI-related symptoms (penile discharge/pain, scrotal/testicular pain/swelling). We analyzed the demographic characteristics of men who presented to the ED with an STI-related complaint and compared those who underwent STI screening (chlamydia, gonorrhea, syphilis or HIV) to those that did not.

Results

Conclusion

Over a 5-year period, screening for chlamydia, gonorrhea for men presenting with STI-related complaints was adequate. However, syphilis and HIV screening was very low among men presenting to an urban and community-based ED with an STI-related complaint. A separate analysis for women is being done. There is an urgent need to identify and eliminate barriers to syphilis and HIV screening in ED’s that serve at-risk populations.

Disclosures

All authors: No reported disclosures.

Challenges Facing a Rural Opioid Epidemic: Treatment and Prevention of HIV and Hepatitis C

PURPOSE OF REVIEW

This article reviews recent epidemiologic trends in HIV and hepatitis C virus (HCV) and strategies for treatment and prevention of these infections as they relate to the opioid epidemic.

RECENT FINDINGS

Among people who inject drugs (PWID) in the United States (US), HIV diagnoses are decreasing, while HCV is increasing. Care for HIV and HCV relies heavily on specialist infrastructure, which is lacking in rural areas. Antiretrovirals for HIV and direct-acting antivirals for HCV are effective among PWID, yet multiple barriers make it difficult for rural injectors to access these treatments. Similarly, access to syringe service programs, medication-assisted therapy for opioid addiction, and pre-exposure prophylaxis for HIV are all limited in rural areas. Previous research on HIV and HCV among PWID has focused on urban or international populations, yet the US opioid epidemic is moving away from metropolitan centers. Increasing rurality of opioid injection brings unique challenges in treatment and prevention. Research into the care of HIV, HCV, and opioid use disorder among rural populations is urgently needed.

The impact of hepatitis C virus coinfection on HIV-related kidney disease: a systematic review and meta-analysis

BACKGROUND

In the era of antiretroviral therapy, non-AIDS complications such as kidney disease are important contributors to morbidity and mortality.

OBJECTIVE

To estimate the impact of hepatitis C coinfection on the risk of kidney disease in HIV patients.

DESIGN AND METHODS

Two investigators identified English-language citations in MEDLINE and Web of Science from 1989 through 1 July 2007. References of selected articles were reviewed. Observational studies and clinical trials of HIV-related kidney disease and antiretroviral nephrotoxicity were eligible if they included at least 50 subjects and reported hepatitis C status. Data on study characteristics, population, and kidney disease outcomes were abstracted by two independent reviewers.

RESULTS

After screening 2516 articles, 27 studies were eligible and 24 authors confirmed or provided data. Separate meta-analyses were performed for chronic kidney disease outcomes (n = 10), proteinuria (n = 4), acute renal failure (n = 2), and indinavir toxicity (n = 5). The pooled incidence of chronic kidney disease was higher in patients with hepatitis C coinfection [6.2 versus 4.0%; relative risk 1.49, 95% confidence interval (CI) 1.08-2.06]. In meta-regression, prevalence of black race and the proportion of patients with documented hepatitis C status were independently associated with the risk of chronic kidney disease. The relative risk associated with hepatitis C coinfection was significantly increased for proteinuria (1.15; 95% CI 1.02-1.30) and acute renal failure (1.64; 95% CI 1.21-2.23), with no significant statistical heterogeneity. The relative risk of indinavir toxicity was 1.59 (95% CI 0.99-2.54) with hepatitis C coinfection.

CONCLUSION

Hepatitis C coinfection is associated with a significant increase in the risk of HIV-related kidney disease.