[Show abstract][Hide abstract]ABSTRACT: Background Crowdsourcing, the process of shifting individual tasks to a large group, may enhance HIV testing interventions. We conducted a non-inferiority, randomized controlled trial (RCT) to compare first-time HIV testing rates among men who have sex with men (MSM) and transgender individuals who received a crowdsourced or a health marketing HIV test promotion video.
Methods MSM and transgender participants (N = 721, ≥16 years old, never before tested for HIV) were recruited through three Chinese MSM web portals and randomly assigned to one of two videos. The crowdsourced video was developed using an open contest and formal transparent judging while the evidence-based health marketing video was designed by experts. Study objectives were to measure HIV test uptake within four weeks of watching either HIV test promotion video and cost per new HIV test and diagnosis.
Results Overall, 624/721 (87%) participants from 31 provinces in 217 Chinese cities completed the study. HIV test uptake was similar between the crowdsourced arm (37%, 114/307) and the health marketing arm (35%, 111/317). The risk difference between the interventions was 2.1% (95% confidence interval, -5.4% to 9.7%). Among those tested, 31% (69/225) reported a new HIV diagnosis. The crowdsourced intervention cost substantially less than the health marketing intervention per first-time HIV test (131 USD/person vs. 238 USD/person) and per new HIV diagnosis (415 USD/person vs. 799 USD/person).
Conclusions Our nationwide study demonstrates that crowdsourcing may be an effective tool for improving HIV testing messaging campaigns and could increase community engagement in health campaigns.
Full-text · Article · Dec 2015 · Clinical Infectious Diseases
[Show abstract][Hide abstract]ABSTRACT: Background Crowdsourcing, the process of shifting individual tasks to a large group, may enhance HIV testing interventions. We conducted a non-inferiority, pragmatic randomized controlled trial to compare first-time HIV testing rates among men who have sex with men (MSM) and transgender individuals who received a crowdsourced HIV test promotion intervention to a group who received a health marketing intervention.
Methods Participants were recruited through three large Chinese MSM web portals. We randomly assigned 721 MSM and transgender individuals (≥16 years old, never before tested for HIV) to one of two video interventions. The crowdsourced video was developed using an open contest and formal transparent judging while the evidence-based health marketing video was designed by experts. Study objectives were to measure HIV test uptake within four weeks and cost per new HIV test and diagnosis.
Findings Overall, 624/721 (87%) participants completed the study from 31 provinces in 217 Chinese cities. HIV test uptake was similar between the crowdsourced arm (37%, 114/307) and the health marketing arm (35%, 111/317). The risk difference between crowdsourced and health marketing intervention was 2•1% (95% confidence interval, -5•4 to 9•7%). Sensitivity analysis using imputation supported the similarity of the two interventions. Among those tested, 31% (69/225) reported a new HIV diagnosis. The crowdsourced intervention cost substantially less than the health marketing intervention per first-time HIV test ($131/person vs. $238/person) and per new HIV diagnosis ($415/person vs. $799/person).
Interpretation Crowdsourcing may be a cost saving tool to enhance community engagement and improve HIV testing.
[Show abstract][Hide abstract]ABSTRACT: The 20th International AIDS Conference held in Melbourne, Australia, from July 20 through July 25, 2014, provided much new data on nucleoside analogue reverse transcriptase inhibitor-sparing antiretroviral therapy, potential consequences of switching suppressive antiretroviral regimen, antiretroviral treatment with integrase strand transfer inhibitors, effects of antiretroviral therapy on HIV-associated neurocognitive impairment, and hepatitis C virus (HCV) treatment in HIV/HCV-coinfected individuals. This article summarizes an IAS-USA continuing education webinar presented by Paul A. Volberding, MD, in August 2014, in which he focused on a few select highlights from the Conference.
No preview · Article · Dec 2014 · Topics in antiviral medicine
[Show abstract][Hide abstract]ABSTRACT: Our objective was to explore the social meaning of HIV and perceptions of an HIV cure among people who inject drugs (PWID) in Guangzhou, China, which speaks to ethical and resource challenges to development in this field. We conducted a qualitative research study using in-depth interviews. We analyzed interview transcripts from 29 PWID, eight physicians, and three social workers from an outpatient HIV clinic and two methadone maintenance treatment centers. The social meaning of HIV infection and perceptions of an HIV cure reflected patients' relationships with society, health systems, and physicians. First, HIV infection decreased perceived social worth and disrupted peer relationships. The possibility of being cured renewed patient hope for regaining physical wellbeing and achieving social mobility. However, the existence of a cure may not alter HIV-associated stigma due to its association with stigmatized behaviors and marginalized groups. Secondly, while stigma was a significant barrier to engagement in health care, hope for a cure may outweigh fears of stigma and enhance linkage to HIV testing and treatment as well as methadone services. A cure may exacerbate perceived health disparities if inaccessible to key affected populations such as PWID. The social implications of an HIV cure among this key affected population may inform the design and implementation of cure clinical trials. Careful management of patient expectations, focusing research on key affected populations, expanding HIV testing and treatment systems, improving access to harm reduction programs, and ensuring post-trial access are important considerations for HIV cure research.
Full-text · Article · Nov 2014 · AIDS Research and Human Retroviruses
[Show abstract][Hide abstract]ABSTRACT: IMPORTANCE: New data and antiretroviral regimens expand treatment choices in resource-rich settings and warrant an update of recommendations to treat adults infected with human immunodeficiency virus (HIV).
OBJECTIVE: To provide updated treatment recommendations for adults with HIV, emphasizing when to start treatment; what treatment to start; the use of laboratory monitoring tools; and managing treatment failure, switches, and simplification.
DATA SOURCES, STUDY SELECTION, AND DATA SYNTHESIS: An International Antiviral Society-USA panel of experts in HIV research and patient care considered previous data and reviewed new data since the 2012 update with literature searches in PubMed and EMBASE through June 2014. Recommendations and ratings were based on the quality of evidence and consensus.
RESULTS: Antiretroviral therapy is recommended for all adults with HIV infection. Evidence for benefits of treatment and quality of available data increase at lower CD4 cell counts. Recommended initial regimens include 2 nucleoside reverse transcriptase inhibitors (NRTIs; abacavir/lamivudine or tenofovir disoproxil fumarate/emtricitabine) and a third single or boosted drug, which should be an integrase strand transfer inhibitor (dolutegravir, elvitegravir, or raltegravir), a nonnucleoside reverse transcriptase inhibitor (efavirenz or rilpivirine) or a boosted protease inhibitor (darunavir or atazanavir). Alternative regimens are available. Boosted protease inhibitor monotherapy is generally not recommended, but NRTI-sparing approaches may be considered. New guidance for optimal timing of monitoring of laboratory parameters is provided. Suspected treatment failure warrants rapid confirmation, performance of resistance testing while the patient is receiving the failing regimen, and evaluation of reasons for failure before consideration of switching therapy. Regimen switches for adverse effects, convenience, or to reduce costs should not jeopardize antiretroviral potency.
CONCLUSIONS AND RELEVANCE: After confirmed diagnosis of HIV infection, antiretroviral therapy should be initiated in all individuals who are willing and ready to start treatment. Regimens should be selected or changed based on resistance test results with consideration of dosing frequency, pill burden, adverse toxic effect profiles, comorbidities, and drug interactions.
Full-text · Article · Jul 2014 · JAMA The Journal of the American Medical Association
[Show abstract][Hide abstract]ABSTRACT: New trial data and drug regimens that have become available in the last 2 years warrant an update to guidelines for antiretroviral therapy (ART) in human immunodeficiency virus (HIV)-infected adults in resource-rich settings.
To provide current recommendations for the treatment of adult HIV infection with ART and use of laboratory-monitoring tools. Guidelines include when to start therapy and with what drugs, monitoring for response and toxic effects, special considerations in therapy, and managing antiretroviral failure.
Data that had been published or presented in abstract form at scientific conferences in the past 2 years were systematically searched and reviewed by an International Antiviral Society-USA panel. The panel reviewed available evidence and formed recommendations by full panel consensus.
Treatment is recommended for all adults with HIV infection; the strength of the recommendation and the quality of the evidence increase with decreasing CD4 cell count and the presence of certain concurrent conditions. Recommended initial regimens include 2 nucleoside reverse transcriptase inhibitors (tenofovir/emtricitabine or abacavir/lamivudine) plus a nonnucleoside reverse transcriptase inhibitor (efavirenz), a ritonavir-boosted protease inhibitor (atazanavir or darunavir), or an integrase strand transfer inhibitor (raltegravir). Alternatives in each class are recommended for patients with or at risk of certain concurrent conditions. CD4 cell count and HIV-1 RNA level should be monitored, as should engagement in care, ART adherence, HIV drug resistance, and quality-of-care indicators. Reasons for regimen switching include virologic, immunologic, or clinical failure and drug toxicity or intolerance. Confirmed treatment failure should be addressed promptly and multiple factors considered.
New recommendations for HIV patient care include offering ART to all patients regardless of CD4 cell count, changes in therapeutic options, and modifications in the timing and choice of ART in the setting of opportunistic illnesses such as cryptococcal disease and tuberculosis.
Full-text · Article · Jul 2012 · JAMA The Journal of the American Medical Association
[Show abstract][Hide abstract]ABSTRACT: HIV risk behaviors, susceptibility to HIV acquisition, progression of disease after infection, and response to antiretroviral therapy all vary by age. In those living with HIV, current effective treatment has increased the median life expectancy to >70 years of age. Biologic, medical, individual, social, and societal issues change as one ages with HIV infection, but there has been only a small amount of research in this field. Therefore, the Office of AIDS Research of the National Institutes of Health commissioned a working group to develop an outline of the current state of knowledge and areas of critical need for research in HIV and Aging; the working groups' findings and recommendations are summarized in this report. Key overarching themes identified by the group included the following: multimorbidity, polypharmacy, and the need to emphasize maintenance of function; the complexity of assessing HIV versus treatment effects versus aging versus concurrent disease; the inter-related mechanisms of immune senescence, inflammation, and hypercoagulability; the utility of multivariable indices for predicting outcomes; a need to emphasize human studies to account for complexity; and a required focus on issues of community support, caregivers, and systems infrastructure. Critical resources are needed to enact this research agenda and include expanded review panel expertise in aging, functional measures, and multimorbidity, and facilitated use and continued funding to allow long-term follow-up of cohorts aging with HIV.
No preview · Article · Jul 2012 · JAIDS Journal of Acquired Immune Deficiency Syndromes
[Show abstract][Hide abstract]ABSTRACT: Human immunodeficiency virus (HIV) infection and the acquired immunodeficiency syndrome (AIDS) have shown an almost unique linkage between biomedical research and improved healthcare outcomes. A transformation has been seen between 1981 when AIDS was a rapidly fatal condition, to the present dramatic survival prolongation. HIV infection is a chronic illness requiring ongoing modern therapy. Parallels and interactions between HIV research and cancer research are close. The ability of novel therapies to suppress HIV replication and restore host immunity has decreased the incidence and progression of cancers in HIV patients. The rapid application of new knowledge to patient care and health policy in HIV has key lessons for other disease areas. Patient and Public Involvement has been influential in research activity and funding. The availability of laboratory markers of disease has been central to the successful application of novel HIV therapies. Active development and management of cooperative large-scale clinical trials supported by advocacy groups was influential. HIV investigators have been at the forefront of identifying cost-effective treatments that can be widely applied. The science, clinical research and political response to the HIV epidemic offer a model generalizable to other serious diseases. Opportunities to share the experiences and lessons learned from HIV should be sought, particularly in the cancer research community.
[Show abstract][Hide abstract]ABSTRACT: Antiretroviral therapy (ART) introduced during primary HIV infection followed by treatment interruption (TI) is postulated to enhance virologic control through induction of HIV-specific CD4 T cells, which foster virus-specific CD8+ T cells that suppress virus replication. This hypothesis was evaluated in 21 subjects enrolled in AIDS Clinical Trials Group 709, a substudy of AIDS Clinical Trials Group 371, which prospectively evaluated subjects who received ≥1 year of ART initiated in acute or recent HIV infection followed by TI.
Lymphoproliferation was assessed by [methyl-H] thymidine incorporation and HIV-specific CD8+ T-cell interferon-gamma responses by enzyme-linked immunospot-forming assays. Virologic success was defined as sustained viral load <5000 copies per milliliter for 24 weeks after TI.
HIV-specific lymphoproliferative responses were detected at least once in 5 (24%) of 21 subjects, were generally transient, and were unrelated to HIV-specific interferon-gamma responses (P > 0.4). HIV-specific CD8+ interferon-gamma responses increased after 48 weeks of ART (P = 0.03), but failed to predict virologic success (P = 0.18). Compared with seronegative subjects, lymphoproliferation to Candida, cytomegalovirus, and alloantigens was similar in HIV-infected subjects during ART, but lower during TI (P ≤ 0.04).
HIV-specific CD8+ T-cell interferon-gamma responses expand during ART following primary HIV infection, but are not related to HIV-specific lymphoproliferative responses nor virologic success. Impaired non-HIV antigen-specific lymphoproliferation associated with TI suggests this strategy could be deleterious.
Preview · Article · Jun 2011 · JAIDS Journal of Acquired Immune Deficiency Syndromes
[Show abstract][Hide abstract]ABSTRACT: Pharmaceutical and medical device company funding supports up to 60% of accredited continuing medical education (CME) costs in the United States. Some have proposed measures to limit the size, scope, and potential influence of commercial support for CME activities. We sought to determine whether participants at CME activities perceive that commercial support introduces bias, whether this is affected by the amount or type of support, and whether they would be willing to accept higher fees or fewer amenities to decrease the need for such funding.
We delivered a structured questionnaire to 1347 participants at a series of 5 live CME activities about the impact of commercial support on bias and their willingness to pay additional amounts to eliminate the need for commercial support.
Of the 770 respondents (a 57% response rate), most (88%) believed that commercial support introduces bias, with greater amounts of support introducing greater risk of bias. Only 15%, however, supported elimination of commercial support from CME activities, and less than half (42%) were willing to pay increased registration fees to decrease or eliminate commercial support. Participants who perceived bias from commercial support more frequently agreed to increase registration fees to decrease such support (2- to 3-fold odds ratio). Participants greatly underestimated the costs of ancillary activities, such as food, as well as the degree of support actually provided by commercial funding.
Although the medical professionals responding to this survey were concerned about bias introduced from commercial funding of CME, many were not willing to pay higher fees to offset or eliminate such funding sources.
Full-text · Article · May 2011 · Archives of internal medicine
[Show abstract][Hide abstract]ABSTRACT: To evaluate the long-term consequences of acute kidney injury (AKI) in human immunodeficiency virus (HIV)-infected persons, we studied 17,325 patients in a national HIV registry during their first hospitalization. We determined the association of AKI with risk for heart failure, cardiovascular events, end-stage renal disease (ESRD), and mortality beginning 90 days after discharge. Based on AKI Network criteria, 2453 had stage 1; 273 had stage 2 or 3; and 334 had dialysis-requiring AKI. Over a mean follow-up period of 5.7 years, 333 had heart failure, 673 had cardiovascular diseases (CVDs), 348 developed ESRD, and 8405 deaths occurred. In multivariable-adjusted analyses, AKI stage 1 was associated with death and ESRD, but not heart failure or other CVD. Dialysis-requiring AKI had much stronger and significant associations with increased risk for long-term ESRD, and death in addition to heart failure and cardiovascular events. When AKI was reclassified to account for recovery, stage 1 with recovery was still associated with death, but not ESRD. Thus, in this national sample of HIV-infected persons, we found the clinical repercussions of AKI appear to extend beyond the hospital setting contributing to excess cardiovascular risks, ESRD, and mortality. Additionally, AKI affected almost one of six patients with HIV who survived at least 90 days following discharge.
Preview · Article · Sep 2010 · Kidney International