Building an HIV Learning Health Care Community for Youth in Florida: Opportunities and Challenges

In Florida, 33% of new HIV infections among men and 21% of new infections among women are among those younger than 29 years of age. We describe the development of a Learning Health Care Community for youth (Y-LHCC) in Orange County, FL. Its core implementation team (iTeam) was composed of representatives from community agencies and academics, whose work was informed by data from the Florida Department of Health (FDOH) and regional research, in-depth interviews (IDIs) with agency representatives, and a pilot implementation of Tailored Motivational Interviewing (TMI) to improve service provision. IDIs revealed limited programming specifically for youth, significant structural challenges providing them with PrEP, and differences in use of evidence-based behavioral interventions to improve HIV services. FDOH provided data on new HIV infections, linkage to care, viral suppression, and PrEP coverage, however, limitations such as minimal data on PrEP referrals and use, agency level data, and inability to generate data quarterly (which would facilitate program improvement) were encountered. Thirty staff members from five agencies serving youth in Orange County participated in TMI training. About half the agency staff (n = 16) completed at least three of the four online training sessions. MI skills improved from pre- (n = 28; M = 1.96) to post TMI training (n = 11; M = 2.48, SD = 0.57); (t(37) = - 3.14, p = 0.0033). The iTeam held seven remote meetings and two in-person half-day meetings at the end of the study, during which they reassessed areas of focus for improving youth services. They also reiterated their commitment to continuing to meet beyond the study period and to engage other agencies in the newly established coalition. Findings highlight the potential of creating a Y-LHCC in Florida as well as some of the challenges that will need to be overcome to achieve ending the HIV Epidemic goals for young people in the region.

Cost-effectiveness of a police education program on HIV and overdose among people who inject drugs in Tijuana, Mexico

Background

Incarceration is associated with drug-related harms among people who inject drugs (PWID). We trained >1800 police officers in Tijuana, Mexico on occupational safety and HIV/HCV, harm reduction, and decriminalization reforms (Proyecto Escudo). We evaluated its effect on incarceration, population impact and cost-effectiveness on HIV and fatal overdose among PWID.

Methods

We assessed self-reported recent incarceration in a longitudinal cohort of PWID before and after Escudo. Segmented regression was used to compare linear trends in log risk of incarceration among PWID pre-Escudo (2012-2015) and post-Escudo (2016-2018). We estimated population impact using a dynamic model of HIV transmission and fatal overdose among PWID, with incarceration associated with syringe sharing and fatal overdose. The model was calibrated to HIV and incarceration patterns in Tijuana. We compared a scenario with Escudo (observed incarceration declines for 2 years post-Escudo among PWID from the segmented regression) compared to a counterfactual of no Escudo (continuation of stable pre-Escudo trends), assessing cost-effectiveness from a societal perspective. Using a 2-year intervention effect and 50-year time horizon, we determined the incremental cost-effectiveness ratio (ICER, in 2022 USD per disability-adjusted life years [DALYs] averted).

Findings

Compared to stable incarceration pre-Escudo, for every three-month interval in the post-Escudo period, recent incarceration among PWID declined by 21% (adjusted relative risk = 0.79, 95% CI: 0.68-0.91). Based on these declines, we estimated 1.7% [95% interval: 0.7%-3.5%] of new HIV cases and 12.2% [4.5%-26.6%] of fatal overdoses among PWID were averted in the 2 years post-Escudo, compared to a counterfactual without Escudo. Escudo was cost-effective (ICER USD 3746/DALY averted compared to a willingness-to-pay threshold of $4842-$13,557).

Interpretation

Escudo is a cost-effective structural intervention that aligned policing practices and human-rights-based public health practices, which could serve as a model for other settings where policing constitutes structural HIV and overdose risk among PWID.

Funding

National Institute on Drug Abuse, UC MEXUS CONACyT, and the San Diego Center for AIDS Research (SD CFAR).

An agent-based model of binge drinking, inequitable gender norms and their contribution to HIV transmission, with application to South Africa

BACKGROUND

Binge drinking, inequitable gender norms and sexual risk behaviour are closely interlinked. This study aims to model the potential effect of alcohol counselling interventions (in men and women) and gender-transformative interventions (in men) as strategies to reduce HIV transmission.

METHODS

We developed an agent-based model of HIV and other sexually transmitted infections, allowing for effects of binge drinking on sexual risk behaviour, and effects of inequitable gender norms (in men) on sexual risk behaviour and binge drinking. The model was applied to South Africa and was calibrated using data from randomized controlled trials of alcohol counselling interventions (n = 9) and gender-transformative interventions (n = 4) in sub-Saharan Africa. The model was also calibrated to South African data on alcohol consumption and acceptance of inequitable gender norms. Binge drinking was defined as five or more drinks on a single day, in the last month.

RESULTS

Binge drinking is estimated to be highly prevalent in South Africa (54% in men and 35% in women, in 2021), and over the 2000-2021 period 54% (95% CI: 34-74%) of new HIV infections occurred in binge drinkers. Binge drinking accounted for 6.8% of new HIV infections (0.0-32.1%) over the same period, which was mediated mainly by an effect of binge drinking in women on engaging in casual sex. Inequitable gender norms accounted for 17.5% of incident HIV infections (0.0-68.3%), which was mediated mainly by an effect of inequitable gender norms on male partner concurrency. A multi-session alcohol counselling intervention that reaches all binge drinkers would reduce HIV incidence by 1.2% (0.0-2.5%) over a 5-year period, while a community-based gender-transformative intervention would reduce incidence by 3.2% (0.8-7.2%) or by 7.3% (0.6-21.2%) if there was no waning of intervention impact.

CONCLUSIONS

Although binge drinking and inequitable gender norms contribute substantially to HIV transmission in South Africa, recently-trialled alcohol counselling and gender-transformative interventions are likely to have only modest effects on HIV incidence. Further innovation in developing locally-relevant interventions to address binge drinking and inequitable gender norms is needed.

Device therapy with interatrial shunt devices for heart failure with preserved ejection fraction

Heart failure with preserved ejection fraction is responsible for half of all heart failure and confers substantial morbidity and mortality, and yet to date, there have been no effective pharmacologic interventions. Although the pathophysiology is complex, the primary aetiology of exercise intolerance is due to an elevated left atrial pressure, particularly with exercise. In this context, device-based therapy has become a focus. Several companies have developed techniques to percutaneously create an iatrogenic left to right shunt at the atrial level, thereby reducing left atrial pressure and reducing transmitted pressures to the pulmonary circulation and reducing pulmonary congestion. In this review, we explore the pathophysiology, evidence base, benefits, and considerations of these devices and their place in the therapeutic landscape of heart failure with preserved ejection fraction.

Breaking Down Barriers to HIV Care for Gay and Bisexual Men and Transgender Women: The Advocacy and Other Community Tactics (ACT) Project

Despite the prevailing consensus on the role that stigma and discrimination play in limiting access to HIV prevention technology, discouraging HIV testing, and impeding access to HIV care, studies that focus on structural interventions to address stigma and discrimination for gay, bisexual, and other men who have sex with men and transgender women are surprisingly uncommon. We aimed to identify the outcomes from a coordinated set of community-led advocacy initiatives targeting structural changes that might eliminate barriers to HIV care for gay and bisexual men and transgender women in five African and two Caribbean countries. We conducted a prospective evaluation that included repeated site visits and in-depth semi-structured interviews with 112 people with direct knowledge of project activities, accomplishments, failures, and challenges. Using outcome harvesting and qualitative analysis methods, we observed that over the 18-month implementation period, local advocacy efforts contributed to enhanced political will on the part of duty bearers for ensuring equitable access to HIV care, increases in the availability of affirming resources, improved access to existing resources, and changes in normative institutional practices to enable access to HIV care. Evidence on Project ACT points to the vital role community-led advocacy plays in addressing stigma and discrimination as structural barriers to HIV care.

Evaluation of Translife Care: An Intervention to Address Social Determinants of Engagement in HIV Care Among Transgender Women of Color

The TransLife Care (TLC) project was developed to address the structural factors that act as barriers to HIV care among transgender women of color. The purpose of this study was to evaluate the feasibility and initial efficacy of the TLC project; primary HIV care outcomes included linkage to HIV care, engagement in care, retention in care, use of ART and viral suppression among N = 120 participants. In multivariable analysis, receipt of the intervention (versus none), was associated with any HIV care visit (aOR 2.05; 95% CI 1.25-3.37; p = 0.005), more total HIV care visits (aRR 1.45; 95% CI 1.09-1.94; p = 0.011), being retained in care (aOR 1.58; 95% CI 1.03-2.44; p = 0.038), and having a viral load test done (aOR 1.95; 95% CI 1.23-3.09; p = 0.004). We conclude that a structural intervention, designed and delivered by the focus population, that directly addresses social determinants, is feasible and efficacious to promote HIV care engagement among transgender women of color.

The effects of interventional mitral valve repair using the MitraClip System on the results of pulmonary function testing, pulmonary pressure and diffusing capacity of the lung

BACKGROUND

The study analyzes changes in lung function, pulmonary pressure and diffusing capacity of the lung in patients with mitral valve regurgitation (MR) treated by MitraClip implantation.

METHODS

A total of 43 patients (19 women and 24 men with an average age of 78.0 ± 6.6 years) who were able to perform pulmonary function testing including diffusing capacity of the lung for carbon monoxide (DLCO), vital capacity (VC), total lung capacity (TLC), residual volume (RV) and forced expiratory volume in 1 s (FEV1) before and 6 weeks after MitraClip implantation participated in this study. Furthermore, clinical and echocardiographic parameters including systolic pulmonary artery pressure (sPAP), left ventricular ejection fraction (LVEF) and left atrial diameter (LAD) measurements were recorded in all patients.

RESULTS

The procedure was performed successfully in all 43 patients leading to a reduction of MR in 97.7% of cases. One patient died on day 4 after the intervention most likely due to pulmonary artery embolism. Six weeks after the implantation 79.1% of patients showed a MR of at most mild to moderate. Furthermore, we could demonstrate a significant reduction of systolic pulmonary artery pressure during follow-up (from 48.8 ± 11.4 mmHg to 42.9 ± 9.0 mmHg (t(41) = - 2.6, p = 0.01). However, no changes in LVEF were detected. Comparing pre and post implant lung function tests, no significant alterations were seen for VC, TLC, DLCO and FEV1. Though, in a subgroup of patients with moderate to severe preexisting deterioration of DLCO at the baseline (max. 50%) the MitraClip procedure resulted in a significant improvement in DLCO (37.8% ± 9.0 to 41.6% ± 10.0, p < 0.001).

CONCLUSIONS

Treatment of MR with the MitraClip system successfully reduces MR severity in the vast majority of patients. Consecutively, a reduction in pulmonary pressure could be observed, however no changes in LVEF were obvious. Lung function tests remained unaltered during follow-up. However, in a subgroup of patients with severe preexisting deterioration of DLCO the MitraClip procedure resulted in a significant improvement in DLCO.

TRIAL REGISTRATION

Name of the registry: Die Auswirkung der interventionellen Mitralklappenreparatur mit MitraClip-System auf die Ergebnisse der Lungenfunktionsmessung.

TRIAL REGISTRATION NUMBER

DRKS00022435; Date of registration: 09/07/2020 'Retrospectively registered'; URL of trial registry record: https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00022435 .

A Systematic Review of HIV Interventions for Young Women in Sub-Saharan Africa

Adolescent girls and young women (AGYW) ages (15-24 years old) in Southern and Eastern Africa account for nearly 30% of all new HIV infections. We conducted a systematic review of studies examining the effectiveness of behavioral, structural, and combined (behavioral + structural) interventions on HIV incidence and risky sexual behaviors among AGYW. Following PRISMA guidelines, we searched PubMed, CINAHL, Web of Science, and Global Health. Twenty-two studies met inclusion criteria conducted in Eastern and Southern Africa and comprised behavioral, structural, or combined (behavioral and structural) interventions. All findings are based on 22 studies. HIV incidence was significantly reduced by one structural intervention. All three types of interventions improved condom use among AGYW. Evidence suggests that structural interventions can reduce HIV incidence, while behavioral and combined interventions require further investigation.

Pharmacy PEP Access Intervention Among Persons Who Use Drugs in New York City: iPEPcare Study-Rethinking Biomedical HIV Prevention Strategies

Biomedical HIV prevention uptake has not taken hold among Black and Latinx populations who use street-marketed drugs. A pilot intervention providing a PEP informational video and direct pharmacy access to a PEP starter dose was conducted among this population. Four study pharmacies were selected to help facilitate syringe customer recruitment (2012-2016). Baseline, post-video, and 3-month ACASI captured demographic, risk behavior, and psychosocial factors associated with PEP willingness, and willingness to access PEP in a pharmacy. A non-experimental study design revealed baseline PEP willingness to be associated with PEP awareness, health insurance, being female, and having a high-risk partner (n = 454). Three-month PEP willingness was associated with lower HIV stigma (APR = 0.95). Using a pre-post approach, PEP knowledge (p < 0.001) and willingness (p < 0.001) increased overtime; however, only three participants requested PEP during the study. In-depth interviews (n = 15) identified lack of a deeper understanding of PEP, and contextualized perceptions of HIV risk as PEP access barriers. Pharmacy PEP access shows promise but further research on perceived risk and HIV stigma is warranted.

Paravalvular leakage in transcatheter mitral valve replacement: Bringing simulation theory one step closer to reality

Transcatheter mitral valve replacement (TMVR) has emerged as a promising technique for the treatment of these patients with severe mitral valve disease and high or prohibitive surgical risk. Early experience with TMVR has shown a high rate of technical success and promising reductions in the severity of mitral regurgitation sustained out to 1 year post procedure. Despite this, procedural complications remain high, with the most common and significant of these being valve embolization, left ventricualr outflow tract (LVOT) obstruction and paravalvular leakage (PVL). It is this currently unanswered question that Morris et al. start to address in this issue of the Journal. They use the same annular segmentation and valve simulation as already proposed to predict LVOT obstruction, but use it to focus instead on examining the residual gap left between the base of the simulated transcatheter valve and the mitral leaflets or surgical prosthesis.

Immigration Legal Services as a Structural HIV Intervention for Latinx Sexual and Gender Minorities

Lack of legal immigration status is associated with poor HIV-related outcomes for immigrant Latinx sexual and gender minorities (LSGM). LSGM often meet eligibility criteria for legal immigration relief. A Medical-Legal Partnership (MLP) may thus be strategic to improve their health. We know little about the challenges LSGM face during the immigration legal process. We conducted in-depth interviews with six key informants and sixteen LSGM who recently applied for immigration legal relief. We coded and analyzed the data for emergent themes. Challenges to instituting an MLP for LSGM included lack of specialized training on working with SGM for immigration attorneys, and for clients: knowledge about legal deadlines, lack of housing and family support, and re-traumatizing experiences. Clients' outcomes were positive when attorneys and mental health providers collaborated. For LSGM, the benefits of immigration relief included reduced HIV risk. An MLP that addresses the surmountable challenges could improve HIV-related outcomes among LSGM.

The Inter-ministerial National Structural Intervention trial (INSTRUCT): protocol for a parallel group cluster randomised controlled trial of a structural intervention to reduce HIV infection among young women in Botswana

Background

Wide recognition that structural factors are important in the HIV epidemic has not generated much evidence of impact of structural interventions. Few randomised controlled trials of structural interventions for HIV prevention have an HIV endpoint, and most of those did not show a significant impact. It has proved difficult to prevent new HIV infections in Botswana, especially among young women, many of whom are unable to act on HIV preventive choices. Proposed by a government think tank in Botswana, the Inter-ministerial National Structural Intervention trial (INSTRUCT) tests whether addressing social and economic factors, including gender inequality, gender violence, poverty, and poor access to education, can lower HIV infection rates among young women. Focussed on increasing access by marginalised young women to government support programs, the intervention seeks to change their structural position, reducing their vulnerability to transactional sex, and thus to HIV infection.

Methods

This parallel group cluster randomised controlled trial compares HIV rates among young women in districts with and without the structural interventions. The 30 administrative districts in the country, stratified by HIV prevalence and development status, will be randomly assigned to 5-district implementation waves. The intervention in the first-wave districts will include: (i) recruiting and preparing vulnerable young women to apply to government support programs, (ii) making the support programs more accessible to young women by engaging local program officers and young women in co-evaluation of programs and co-design of solutions; and (iii) generating an enabling environment for change in communities through an audio-drama edutainment program. In year five, an impact survey will measure HIV rates among vulnerable young women (15–29 years) in a random sample of communities in the five intervention districts and in the five second-wave (control) districts. Fieldworkers will undertake rapid HIV screening and interview young women and young men, collecting information on secondary outcomes of attitudes and behaviours.

Discussion

This is the first step in a planned stepped-wedge design that will roll out the intervention, modified as necessary, to all districts. Strong government commitment provides an important opportunity to reduce new HIV cases in Botswana, and guide prevention efforts in other countries.

Trial registration

Registration number: ISRCTN 54878784. Registry: ISRCTN. Date of registration: 11 June 2013.

Enhancing LPG adoption in Ghana (ELAG): a factorial cluster-randomized controlled trial to Enhance LPG Adoption & Sustained use

Background

Three billion individuals worldwide rely on biomass fuel [dung, wood, crops] for cooking and heating. Further, health conditions resulting from household air pollution (HAP) are responsible for approximately 3.9 million premature deaths each year. Though transition away from traditional biomass stoves is projected curb the health effects of HAP by mitigating exposure, the benefits of newer clean cookstove technologies can only be fully realized if use of these new stoves is exclusive and sustained. However, the conditions under which individuals adopt and sustain use of clean cookstoves is not well understood.

Methods

The Enhancing LPG Adoption in Ghana (ELAG) study is a cluster-randomized controlled trial employing a factorial intervention design. The first component is a behavior change intervention based on the Risks, Attitudes, Norms, Abilities, and Self-regulation (RANAS) model. This intervention seeks to align these five behavioral factors with clean cookstove adoption and sustained use. A second intervention is access-related and will improve LPG availability by offering a direct-delivery refueling service. These two interventions will be integrated via a factorial design whereby 27 communities are assigned to one of the following: the control arm, the educational intervention, the delivery, or a combined intervention. Intervention allocation is determined by a covariate-constrained randomization approach. After intervention, approximately 900 households’ individual fuel use is tracked for 12 months via iButton stove use monitors. Analysis will include hierarchical linear models used to compare intervention households’ fuel use to control households.

Discussion

Literature to-date demonstrates that recipients of improved cookstoves rarely completely adopt the new technology. Instead, they often practice partial adoption (fuel stacking). Consequently, interventions are needed to influence adoption patterns and simultaneously to understand drivers of fuel adoption. Ensuring uptake, adoption, and sustained use of improved cookstove technologies can then lead to HAP-reductions and consequent improvements in public health.

Trial registration

NCT03352830 (November 24, 2017).

Electronic supplementary material

The online version of this article (10.1186/s12889-018-5622-3) contains supplementary material, which is available to authorized users.

Patent foramen ovale closure versus medical therapy for prevention of recurrent cryptogenic embolism: updated meta-analysis of randomized clinical trials

BACKGROUND

We performed an updated meta-analysis of all randomized-controlled trials (RCTs) comparing patent foramen ovale (PFO) closure with medical therapy for prevention of recurrent ischemic stroke.

METHODS AND RESULTS

We searched Medline, EMBASE, and Cochrane databases, and proceedings of international meetings for RCTs of patients with cryptogenic stroke and PFO comparing percutaneous PFO closure versus medical therapy for prevention of recurrent ischemic stroke. The primary outcome was a composite ischemic/embolic endpoint comprising stroke, transient ischemic attack (TIA), peripheral embolism, and early death in the intention-to-treat population. Secondary outcomes were all-cause death, stroke, TIA, atrial fibrillation (AF), and major bleeding. Of 3440 enrolled patients across five RCTs, 1829 were allocated to PFO closure and 1611 to medical therapy. The follow-up ranged from 2 to 5.9 years. PFO closure reduced the risk of the composite outcome [HR 0.52, (0.36-0.77); p < 0.01], and stroke, [HR 0.39, (0.19-0.83); p < 0.01], and increased the risk of AF [OR 3.75, (2.44-5.78); p < 0.01] as compared to medical therapy. NNT for stroke was 37 and NNH for AF 49, indicating a net clinical benefit of PFO closure. The meta-analysis had 95% power to detect a 50% relative risk reduction (RRR) in the primary outcome and 89% power to detect a 70% RRR in ischemic stroke. The risk of all-cause death (HR 1.08, p = 0.90), TIA [HR 0.73, (0.49-1.09); p = 0.12], and major bleeding [OR 0.97, (0.44-2.17); p = 0.95] was comparable between the groups.

CONCLUSIONS

Among patients with cryptogenic stroke and PFO, percutaneous closure of PFO is superior to medical therapy in preventing recurrent ischemic/embolic events and stroke but is associated with an increased risk of AF.

Choice disability as a target for non-medical HIV intervention

Even though medical intervention measures against HIV transmission are available, the epidemic continues to spread in several sub-Saharan African countries. Empirical studies indicate that many people are unable to implement prevention strategies because of individual factors, such as extreme poverty or lack of education, but also because or relational factors, such as gender-based violence or transactional sex. This phenomenon, known as choice disability, may be such a large obstacle in the effectiveness of medical interventions that several field trials of structural (non-medical) interventions are underway that address these issues. While dynamical-systems models are frequently used to advise management and policy around infectious diseases, they typically assume that individuals are free to make optimal choices. We derive and analyze a novel model where individuals have a certain choice status, based on which they are more or less likely to transmit or receive the infection. Choice status is affected by social interactions. When studying the model in the absence of an infectious disease, we find that structural interventions aimed at raising the status of one group can have the unintended side effect of lowering the status of another group. When combined with an epidemic model, we find that the same structural interventions can even increase the total prevalence of a disease in the population. Our model provides a framework to evaluate the possible effectiveness of structural intervention in an epidemic.

Impact of a Structural Intervention to Address Alcohol Use Among Gay Bar Patrons in San Francisco: The PACE Study

We evaluated the impact on alcohol intake and blood alcohol concentration (BAC) of a multi-level structural intervention to increase the availability of free water, coupled with messaging on pacing alcohol intake and normative feedback of blood alcohol concentration in a convenience sample of gay bars in San Francisco. Participants (n = 1,293) were recruited among exiting patrons of four gay bars (two intervention bars and two control bars). Participants were surveyed on alcohol intake and BAC was measured by breathalyzer. Prior to the intervention there were no significant differences in baseline alcohol measures between intervention and control bars. Post-intervention there were significant differences on objective and subjective measures of alcohol consumption: 30% of intervention bar participants had BAC% levels over the legal driving limit (0.08%) compared to 43% of control bar participants, p < 0.0001 and 78% of intervention bar participants were above the AUDIT-C cut-off for hazardous drinking compared to 87% in control bars, p < 0.001.

Mixed-Method Quasi-Experimental Study of Outcomes of a Large-Scale Multilevel Economic and Food Security Intervention on HIV Vulnerability in Rural Malawi

The objective of the Savings, Agriculture, Governance, and Empowerment for Health (SAGE4Health) study was to evaluate the impact of a large-scale multi-level economic and food security intervention on health outcomes and HIV vulnerability in rural Malawi. The study employed a quasi-experimental non-equivalent control group design to compare intervention participants (n = 598) with people participating in unrelated programs in distinct but similar geographical areas (control, n = 301). We conducted participant interviews at baseline, 18–, and 36–months on HIV vulnerability and related health outcomes, food security, and economic vulnerability. Randomly selected households (n = 1002) were interviewed in the intervention and control areas at baseline and 36 months. Compared to the control group, the intervention led to increased HIV testing (OR 1.90; 95 % CI 1.29–2.78) and HIV case finding (OR = 2.13; 95 % CI 1.07–4.22); decreased food insecurity (OR = 0.74; 95 % CI 0.63–0.87), increased nutritional diversity, and improved economic resilience to shocks. Most effects were sustained over a 3-year period. Further, no significant differences in change were found over the 3-year study period on surveys of randomly selected households in the intervention and control areas. Although there were general trends toward improvement in the study area, only intervention participants’ outcomes were significantly better. Results indicate the intervention can improve economic and food security and HIV vulnerability through increased testing and case finding. Leveraging the resources of economic development NGOs to deliver locally-developed programs with scientific funding to conduct controlled evaluations has the potential to accelerate the scientific evidence base for the effects of economic development programs on health.

Protocol of the impact of alternative social assistance disbursement on drug-related harm (TASA) study: a randomized controlled trial to evaluate changes to payment timing and frequency among people who use illicit drugs

Background

Government social assistance payments seek to alleviate poverty and address survival needs, but their monthly disbursement may cue increases in illicit drug use. This cue may be magnified when assistance is disbursed simultaneously across the population. Synchronized payments have been linked to escalations in drug use and unintended but severe drug-related harms, including overdose, as well as spikes in demand for health, social, financial and police services.

Methods/design

The TASA study examines whether changing payment timing and frequency can mitigate drug-related harm associated with synchronized social assistance disbursement. The study is a parallel arm multi-group randomized controlled trial in which 273 participants are randomly allocated for six assistance cycles to a control or one of two intervention arms on a 1:1:1 basis. Intervention arm participants receive their payments: (1) monthly; or (2) semi-monthly, in each case on days that are not during the week when cheques are normally issued. The study partners with a community-based credit union that has developed a system to vary social assistance payment timing. The primary outcome is a 40 % increase in drug use during the 3 days beginning with cheque issue day compared to other days of the month. Bi-weekly follow-up interviews collect participant information on this and secondary outcomes of interest, including drug-related harm (e.g. non-fatal overdose), exposure to violence and health service utilization. Self-reported data will be supplemented with participant information from health, financial, police and government administrative databases. A longitudinal, nested, qualitative parallel process evaluation explores participant experiences, and a cost-effectiveness evaluation of different disbursement scenarios will be undertaken. Outcomes will be compared between control and intervention arms to identify the impacts of alternative disbursement schedules on drug-related harm resulting from synchronized income assistance.

Discussion

This structural RCT benefits from strong community partnerships, highly detailed outcome measurement, robust methods of randomization and data triangulation with third party administrative databases. The study will provide evidence regarding the potential importance of social assistance program design as a lever to support population health outcomes and service provision for populations with a high prevalence of substance use.

Trial registration

NCT02457949 Registered 13 May 2015.

Heart Failure in Adult Congenital Heart Disease: Nonpharmacologic Treatment Strategies

In early stages, heart failure (HF) in adult congenital heart disease (ACHD) remains an elusive diagnosis. Many ACHD patients seem well-compensated owing to chronic physical and psychological adaptations. HF biomarkers and cardiopulmonary exercise tests are often markedly abnormal, although patients report stable health and good quality of life. Treatment differs from acquired HF. Evidence for effective drug therapy in ACHD-related HF is lacking. Residual ventricular, valvular, and vascular abnormalities contribute to HF pathophysiology, leading to an emphasis on nonpharmacologic treatment strategies. This article reviews emerging perspectives on nonpharmacologic treatment strategies, including catheter-based interventions, surgical correction, and palliative care.