Jennifer A. Mitty

Limited Awareness and Low Immediate Uptake of Pre-Exposure Prophylaxis among Men Who Have Sex with Men Using an Internet Social Networking Site

Background In 2010, the iPrEx trial demonstrated that oral antiretroviral pre-exposure prophylaxis (PrEP) reduced the risk of HIV acquisition among high-risk men who have sex with men (MSM). The impact of iPrEx on PrEP knowledge and actual use among at-risk MSM is unknown. Online surveys were conducted to assess PrEP awareness, interest and experience among at-risk MSM before and after iPrEx, and to determine demographic and behavioral factors associated with these measures. Methods and Findings Cross-sectional, national, internet-based surveys were administered to U.S. based members of the most popular American MSM social networking site 2 months before (n = 398) and 1 month after (n = 4 558) publication of iPrEx results. Comparisons were made between these samples with regards to PrEP knowledge, interest, and experience. Data were collected on demographics, sexual risk, and experience with post-exposure prophylaxis (PEP). Regression analyses were performed to identify factors associated with PrEP awareness, interest, and experience post-iPrEx. Most participants were white, educated, and indicated high-risk sexual behaviors. Awareness of PrEP was limited pre- and post-iPrEx (13% vs. 19%), whereas interest levels after being provided with a description of PrEP remained high (76% vs. 79%). PrEP use remained uncommon (0.7% vs. 0.9%). PrEP use was associated with PEP awareness (OR 7.46; CI 1.52–36.6) and PEP experience (OR 34.2; CI 13.3–88.4). PrEP interest was associated with older age (OR 1.01; CI 1.00–1.02), unprotected anal intercourse with ≥1 male partner in the prior 3 months (OR 1.40; CI 1.10–1.77), and perceiving oneself at increased risk for HIV acquisition (OR 1.20; CI 1.13–1.27). Conclusions Among MSM engaged in online networking, awareness of PrEP was limited 1 month after the iPrEx data were released. Utilization was low, although some MSM who reported high-risk behaviors were interested in using PrEP. Studies are needed to understand barriers to PrEP utilization by at-risk MSM.

Directly observed therapy for the treatment of people with human immunodeficiency virus infection: a work in progress.

The principle of directly observed therapy (DOT) has its roots in the treatment of tuberculosis (TB), for which DOT programs have improved cure rates in hard-to-reach populations. Human immunodeficiency virus (HIV) and TB affect similar populations, and there are concerns about both regarding the development of drug resistance associated with poor adherence to therapy. Accordingly, DOT may benefit certain HIV-infected people who have difficulty adhering to highly active antiretroviral therapy. However, important differences exist in the treatment of these diseases that raise questions about how DOT can be adapted to HIV therapy. DOT for management of HIV infection has been effective among prisoners and in pilot programs in Haiti, Rhode Island, and Florida. Although DOT can successfully treat HIV infection in marginalized populations in the short term, a multitude of questions remain. This review provides an account of the preliminary development of DOT programs for the treatment of HIV-infected individuals.

HIV Providers’ Perceived Barriers and Facilitators to Implementing Pre-Exposure Prophylaxis in Care Settings: A Qualitative Study

Oral pre-exposure prophylaxis (PrEP) can reduce HIV incidence among at-risk persons. However, for PrEP to have an impact in decreasing HIV incidence, clinicians will need to be willing to prescribe PrEP. HIV specialists are experienced in using antiretroviral medications, and could readily provide PrEP, but may not care for HIV-uninfected patients. Six focus groups with 39 Boston area HIV care providers were conducted (May–June 2012) to assess perceived barriers and facilitators to prescribing PrEP. Participants articulated logistical and theoretical barriers, such as concerns about PrEP effectiveness in real-world settings, potential unintended consequences (e.g., risk disinhibition and medication toxicity), and a belief that PrEP provision would be more feasible in primary care clinics. They identified several facilitators to prescribing PrEP, including patient motivation and normative guidelines. Overall, participants reported limited prescribing intentions. Without interventions to address HIV providers’ concerns, implementation of PrEP in HIV clinics may be limited.ResumenLa profilaxis pre-exposición via oral (PrEP) puede reducir la incidencia del VIH entre las personas en situación de riesgo. Sin embargo, para que PrEP tenga un impacto en la disminución de la incidencia del VIH, los médicos tienen que estar dispuestos a prescribir PrEP. Los especialistas en VIH tienen experiencia en el uso de medicamentos antirretrovirales, y podría proporcionar PrEP fácilmente, pero puede que no atiendan a pacientes no infectados por VIH. Se realizaron seis grupos focales con 39 proveedores de atención del VIH en el área de Boston (mayo-junio de 2012) para evaluar la percepción de barreras y facilitadores para la prescripción de PrEP. Los participantes articularon barreras logísticas y teóricas, como las preocupaciones sobre la eficacia de PrEP en el mundo real, las posibles consecuencias no deseadas (por ejemplo, riesgo de desinhibición y toxicidad de medicamentos), y la creencia de que la administración de PrEP sería más factible en las clínicas de atención primaria. Varios facilitadores para la prescripcion de PrEP fueron identificados, incluyendo la motivación del paciente y directrices normativas. En general, los participantes reportaron intenciones de prescripción limitadas. Sin intervenciones que hagan frente a las preocupaciones de los proveedores de atencion del VIH, la implementación de PrEP en las clínicas de VIH puede ser limitada.

A randomized clinical trial of community-based directly observed therapy as an adherence intervention for HAART among substance users.

Background:Adherence interventions for HAART can impact challenging populations, such as active substance users. Community-based modified directly observed therapy (MDOT) is a promising approach that needs to be critically evaluated. Methods:This study was a randomized clinical trial. HIV seropositive substance users were randomized to either standard of care (SOC) or MDOT, stratified by HAART experience. All participants were placed on a once-daily regimen and were met by an outreach worker for all 7 days during the first 3 months. We used an intent-to-treat analysis to evaluate differences in viral load suppression [> 2 log drop in plasma viral load (PVL) or PVL < 50] and changes in PVL and CD4 cell count from baseline to 3 months. Results:A total of 87 participants were enrolled (43 in SOC, 44 in MDOT), Using repeated measures logistic regression, MDOT participants were more likely to achieve PVL suppression (odds ratio, 2.16; 95% confidence interval, 1.0–4.7), driven primarily by those HAART experienced (odds ratio, 2.88; 95% confidence interval, 1.2–7.0). A significant treatment effect was also found in CD4 cell count change (P < 0.05). No differences were found by arm in undetectable PVL. Conclusion:This study provides evidence that MDOT is an effective strategy to reduce viral load and increase CD4 cell counts in HAART experienced substance users. MDOT should be included in the spectrum of options to enhance adherence in this population.

Linkage to Treatment and Supportive Services Among HIV-Positive Ex-Offenders in Project Bridge

HIV-positive inmates often have histories of substance use, mental illness, and homelessness. Access to supportive services is important for members of this population upon their release from prison to improve continuity of medical care in the community. This paper briefly reviews Project Bridge, a federally funded demonstration project that provided intensive case management for HIV positive ex-offenders. Methods. Ex-offenders received 18 months of intensive case management by teams of a professional social worker and an outreach worker between May 2003 and December 2005. Client contacts were weekly for 12 weeks and, at a minimum, monthly thereafter. Results. Most clients (95%) received medical care throughout their enrollment. Of all clients in Project Bridge, 45.8% secured housing, 71% were linked to mental health care, and 51% were linked to addiction services. Conclusion. Despite high levels of addiction (97%) and mental health disorders (34% on medication), ex-offenders were retained in health care for a year after being released from incarceration.

Opioid-prescribing practices and provider confidence recognizing opioid analgesic abuse in HIV primary care settings.

Background:Pain syndromes are common in HIV-infected patients, who also are commonly affected by opioid-use disorders. Although opioids can treat pain, prescribers must consider the consequences of iatrogenic or missed addiction diagnoses. Methods:In an anonymous online survey, we asked a national sample of HIV providers about their demographics, experience, and patients, and their practices and attitudes about chronic opioid therapy, addiction, and confidence recognizing opioid analgesic abuse. Results:One hundred six providers reported 28% of their patients had chronic pain; 21% received opioid analgesics; 37% were HIV infected by injecting drug use; and 12% were addicted to prescription opioids. Few providers followed recommended guidelines for chronic opioid therapy in nonmalignant pain. Mean provider confidence was 6.3 on a scale of 10. Higher confidence was associated with provider sex (P < 0.05), patient volume (P < 0.03), discussing substance use, (P < 0.05), urine toxicology (P < 0.01), prescribing longer acting opioids (P = 0.005), and prescribing buprenorphine (P = 0.009). Conclusions:HIV providers seldom follow recommended guidelines for opioid prescribing and have limited confidence in their ability to recognize opioid analgesic abuse. Clinical practices developed to reduce misuse and increase early detection and treatment of opioid dependence are associated with higher confidence. The implementation of guidelines to improve the quality of opioid prescribing in HIV clinics may aid in the diagnosis of addictive disorders and prevent their adverse outcomes.

Modified Directly Observed Therapy for the Treatment of HIV-Seropositive Substance Users: Lessons Learned from a Pilot Study

Highly active antiretroviral therapy (HAART) can dramatically decrease human immunodeficiency virus (HIV) load in plasma, increase CD4+ cell counts, and prolong life for HIV-seropositive persons. However, the need for optimal adherence has been recognized. We implemented a pilot community-based program of directly observed therapy (DOT) with HAART among persons with substance use disorders and a history of failure of HAART. A near-peer outreach worker initially delivered and observed once-daily HAART doses on up to 7 days per week. Many participants tapered the frequency of visits. Participants were assessed by a brief questionnaire and determination of their CD4+ cell count and plasma HIV load. Twenty-five HIV-seropositive persons were enrolled and followed-up for a mean of 6.6 months (standard deviation, 3.9 months). We found that once-daily dosing of HAART by DOT is feasible in this population; in addition to observation of the majority of doses, most participants achieved virus suppression and felt favorably about the intervention. Tapering the intensity of visits with maximum flexibility was necessary to enhance the acceptability of the program to participants.

Knowledge, beliefs and practices regarding antiretroviral medications for HIV prevention: Results from a survey of healthcare providers in New England

Background Antiretroviral treatment for HIV-infection before immunologic decline (early ART) and pre-exposure chemoprophylaxis (PrEP) can prevent HIV transmission, but routine adoption of these practices by clinicians has been limited. Methods Between September and December 2013, healthcare practitioners affiliated with a regional AIDS Education and Training Center in New England were invited to complete online surveys assessing knowledge, beliefs and practices regarding early ART and PrEP. Multivariable models were utilized to determine characteristics associated with prescribing intentions and practices. Results Surveys were completed by 184 practitioners. Respondent median age was 44 years, 58% were female, and 82% were white. Among ART-prescribing clinicians (61% of the entire sample), 64% were aware that HIV treatment guidelines from the Department of Health and Human Services recommended early ART, and 69% indicated they would prescribe ART to all HIV-infected patients irrespective of immunologic status. However, 77% of ART-prescribing clinicians would defer ART for patients not ready to initiate treatment. Three-fourths of all respondents were aware of guidance from the U.S. Centers for Disease Control and Prevention recommending PrEP provision, 19% had prescribed PrEP, and 58% of clinicians who had not prescribed PrEP anticipated future prescribing. Practitioners expressed theoretical concerns and perceived practical barriers to prescribing early ART and PrEP. Clinicians with higher percentages of HIV-infected patients (aOR 1.16 per 10% increase in proportion of patients with HIV-infection, 95% CI 1.01–1.34) and infectious diseases specialists (versus primary care physicians; aOR 3.32, 95% CI 0.98–11.2) were more likely to report intentions to prescribe early ART. Higher percentage of HIV-infected patients was also associated with having prescribed PrEP (aOR 1.19, 95% CI 1.06–1.34), whereas female gender (aOR 0.26, 95% CI 0.10–0.71) was associated with having not prescribed PrEP. Conclusions These findings suggest many clinicians have shifted towards routinely recommending early ART, but not PrEP, so interventions to facilitate PrEP provision are needed.

Mycobacterium avium complex immune reconstitution inflammatory syndrome: Long term outcomes

BackgroundTo describe long term outcomes of Mycobacterium avium complex (MAC) immune reconstitution inflammatory syndrome (IRIS).MethodsCases of MAC IRIS were retrospectively identified at four HIV clinics (Michigan, Maryland, Rhode Island, and Indiana) from 1996–2004. Patients were included if they were initially diagnosed with AIDS and found to have evidence of focal MAC infection documented by tissue culture or PCR after initiating HAART, and at least 6 months of follow up.ResultsAmong the 20 patients included, the mean age was 40 years, mean CD4 cell count was 24/mm3 at pretreatment baseline and 100/mm3 at time of MAC IRIS diagnosis. Sites of disease included lymph nodes (15 patients [8 peripheral, 8 abdominal and 1 peripheral and abdominal]), gastrointestinal tract (7) and liver (3). Sixteen patients (80%) responded to treatment and were disease free after a mean of 17.4 months of therapy for MAC IRIS; IRIS therapy was withdrawn in 6 without relapse. Four patients (non-responder group) had persistent or relapsing disease despite 27 months of ongoing MAC IRIS treatment. At the time of resolution or last follow-up, the mean CD4 cell count and viral load was 143/mm3 and 7,000 c/mL for responders, and 65/mm3 and 17,000 c/mL for non-responders, respectively. Most patients with peripheral adenopathy were responders (7/8; 88%); many with abdominal adenopathy (4/8; 50%) were nonresponders.ConclusionThe majority of patients with MAC IRIS eventually responded to treatment. Our sample size was not adequate to perform statistical analysis, but there was a tendency towards adequate CD4 response to HAART and peripheral rather than intraabdominal adenopathy among responders.

Comprehensive medical care among HIV-positive incarcerated women: the Rhode Island experience.

Our objective was to characterize the clinical presentation of human immunodeficiency virus (HIV) infection among incarcerated women in a program that provides HIV testing and primary care to all state prisoners in Rhode Island. A retrospective medical chart review on all HIV-seropositive women who were incarcerated between 1989 and 1994 and had at least two medical visits with an HIV medical care provider was used. At the Rhode Island Adult Correctional Institution (ACI), under mandatory testing laws between 1989 and 1994, 28% (172 of 623) of all women were identified with HIV infection. Of the 172 women who tested seropositive in prison, 110 were included in the study. Of the 110 women followed, 84% reported injection drug use (IDU) as their primary risk factor, and 30% reported both IDU and sex work. The median CD4 count was 596/mm3, with 60% having a CD4 count >500 cells/mm3. The most common medical conditions were vaginal candidiasis, oral candidiasis, and bronchitis. Antiretroviral therapy was well accepted and followed community standards. Continuity of medical care after release was facilitated by the same physician caring for the patient in the community setting, with 83% of women following up for HIV care after release. The medical conditions noted reflect that these women are early in the course of their HIV disease when they are initially diagnosed. This comprehensive program in Rhode Islands state prison plays a central role in the diagnosis of HIV-seropositive women and provides counseling, primary medical and gynecological care, and linkage to community resources after release.