Publications by authors named "Douglas S Krakower"

Article Synopsis
  • Doxycycline postexposure prophylaxis (doxyPEP) effectively reduces the incidence of bacterial sexually transmitted infections (STIs) in those assigned male at birth, although practical data is limited.
  • This study analyzed electronic health records of HIV PrEP users from Kaiser Permanente Northern California to assess the uptake of doxyPEP and its impact on STI rates before and after its initiation.
  • Out of 11,551 HIV PrEP users, 19.5% received doxyPEP, with a notable percentage having an STI prior; findings suggest changes in STI positivity rates among those who started doxyPEP versus those who did not.
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Article Synopsis
  • Doxycycline used as postexposure prophylaxis (doxyPEP) can significantly lower the risk of bacterial STIs if taken within 72 hours after sex, yet knowledge and usage among at-risk populations remain unclear.!* -
  • An online survey of 903 mainly gay and bisexual men revealed that while nearly half were aware of antibiotic use for STI prevention and most expressed interest, only about 21% had actually used it, with doxycycline being the most common choice.!* -
  • Many users deviated from recommended dosages, and most reported unchanged condom use during prophylaxis, highlighting a need for better education on effective STI preventative measures among sexually active individuals.!*
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Background: Preexposure prophylaxis (PrEP) use remains limited and inequitable, and strategies are needed to improve PrEP provision in primary care.

Methods: We conducted a cluster randomized trial at Kaiser Permanente, San Francisco, to evaluate the effectiveness of a clinical decision support intervention guided by an electronic health record (EHR)-based HIV risk prediction model to improve PrEP provision. Primary care providers (PCPs) were randomized to usual care or intervention, with PCPs who provide care to people with HIV balanced between arms.

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New HIV infections disproportionately affect young men who have sex with men (YMSM). PrEP is effective in preventing HIV acquisition; however, adherence is critical and is often suboptimal among YMSM. Interventions addressing the unique PrEP adherence challenges faced by YMSM are needed.

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Article Synopsis
  • Doxycycline post-exposure prophylaxis (doxyPEP) is shown to effectively reduce STIs in individuals with HIV and those using PrEP, although there's concern over the broad increase in antibiotic use.
  • A study analyzed electronic health records from a health center servicing gay and bisexual men, transgender women, and non-binary individuals, evaluating various doxyPEP prescribing strategies over five years.
  • Results indicated that the most effective strategies focus on STI history rather than HIV status or PrEP use, potentially averting a significant number of STI diagnoses by tailoring doxyPEP prescriptions based on previous infections.
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Article Synopsis
  • Benefits of pre-exposure prophylaxis (PrEP) include not just HIV risk reduction, but also improved emotional and social well-being reported by users, such as reduced anxiety and increased intimacy.
  • * Clinicians need to provide comprehensive discussions about both the risks and benefits of PrEP, incorporating users' personal and relational experiences.
  • * Training programs and guidelines for healthcare providers should be adapted to include community input and user-reported outcomes, emphasizing the need to prioritize the values and experiences of potential PrEP users, especially marginalized populations.
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To determine HIV pre-exposure prophylaxis (PrEP) availability at student health services (SHS) in New England. We conducted an electronic survey of medical directors of SHS at New England colleges and universities. We measured the availability and volume of PrEP prescribing, barriers and facilitators to prescribing and provider knowledge.

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Enhanced provider training could improve PrEP access and equity. We conducted a pilot randomized controlled trial comparing (a) a one-hour, group-based provider intervention integrating PrEP and Cultural Competence (PCC) training with (b) a standard HIV continuing medical education session (n = 56). PCC participants favorably rated the intervention and reported increased PrEP knowledge.

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Antiretroviral preexposure prophylaxis (PrEP) is highly effective in preventing human immunodeficiency virus (HIV) infection, but uptake has been limited and inequitable. Although interventions to increase PrEP uptake are being evaluated in clinical trials among men who have sex with men (MSM), those trials cannot evaluate effects on HIV incidence. Estimates from observational studies of the causal effects of PrEP-uptake interventions on HIV incidence can inform decisions about intervention scale-up.

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Background: Multiple HIV outbreaks among people who inject drugs (PWIDs) have occurred in the USA since 2015, highlighting the need for additional HIV prevention tools. Despite high levels of need, pre-exposure prophylaxis (PrEP) is drastically underutilized among PWIDs. Implicit bias toward PWID held by clinicians may impede PrEP scale-up among these underserved patients.

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HIV incidence is disproportionately high among young cisgender men who have sex with men (YMSM), but YMSM are less likely than adults to use HIV pre-exposure prophylaxis (PrEP). Among YMSM living with HIV, peer navigation programs have been effective in linkage to care and increasing medication adherence; such programs may aid HIV-uninfected YMSM in overcoming barriers to engagement in PrEP care. We conducted 32 semi-structured qualitative interviews at a community health center in Massachusetts, USA, specializing in sexual and gender minority health with four sub-groups of YMSM who: (1) had never discussed PrEP with a medical provider, (2) had discussed PrEP with a medical provider but declined a prescription, (3) were prescribed PrEP and have sub-optimal adherence (taking fewer than 4 pills per week), and (4) were prescribed PrEP and were optimally adherent.

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Background: HIV incidence has recently increased among people who inject drugs (PWID) across the United States, with outbreaks occurring in states with long-standing syringe service programs (SSPs) including Massachusetts (MA). Antiretroviral pre-exposure prophylaxis (PrEP) is an evidence-based HIV prevention strategy recommended for PWID, but uptake in this marginalized population is extraordinarily low.

Methods: We describe the design and procedures for a National Institute on Drug Abuse (NIDA)-funded (R01) randomized controlled trial (RCT) testing the efficacy of "PrEP for Health," a multicomponent behavioral intervention to increase PrEP uptake, adherence, and persistence among HIV-negative PWID attending SSPs in two areas of the U.

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Background: Tick-borne illness are becoming increasingly common, in a spreading geographic area. Lyme disease is a well-known cause of cardiovascular disease, but anaplasmosis has previously had relatively little reported association with conduction and myocardial disease.

Case Summary: A 65-year-old man with fever and malaise was admitted to the intensive care unit in shock.

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Patient-provider communication is a key factor affecting HIV pre-exposure prophylaxis (PrEP) awareness and access among Black sexual minority men (SMM). Optimizing patient-provider communication requires a deeper understanding of communication dynamics. In this study, we investigated the perspectives of both HIV-negative/status-unknown Black SMM and practicing community healthcare providers regarding patient-provider communication about PrEP and sexual health.

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Social biases may influence providers' judgments related to pre-exposure prophylaxis (PrEP) and patients' consequent PrEP access. US primary and HIV care providers (n = 370) completed an experimental survey. Each provider reviewed one fictitious medical record of a patient seeking PrEP.

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Although HIV pre-exposure prophylaxis can decrease new cases of HIV by up to 99%, many patients who could benefit from pre-exposure prophylaxis never receive prescriptions for it. Because pre-exposure prophylaxis is indicated for patients who do not have an infectious disease, increasing pre-exposure prophylaxis prescribing by primary care and generalist clinicians represents a key element of the Ending the HIV Epidemic in the U.S.

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Background: Efforts to end the human immunodeficiency virus (HIV) epidemic may be threatened if limited preexposure prophylaxis (PrEP) resources are funneled from tenofovir disoproxil fumarate with emtricitabine (TDF/FTC) to tenofovir alafenamide with emtricitabine (TAF/FTC) without proportional clinical benefits.

Methods: The study population was patients at a Boston community health center who were assigned male sex at birth, aged ≥18 years, and prescribed TDF/FTC for PrEP in the 12 months before TAF/FTC approval (October 2019). We determined the frequency of switching to TAF/FTC in the 12 months after approval, including clinically indicated switching (ie, creatinine clearance <60 mL/minute or reduced bone density), potentially unnecessary switching (ie, no indications for switching and no cardiovascular risk factors), and potentially harmful switching (ie, no indications for switching and either obesity or dyslipidemia).

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Background: HIV prevention is the primary goal of preexposure prophylaxis (PrEP); however, ancillary benefits may exist, including PrEP as an entry point to primary care.

Objective: To explore PrEP users' perspectives on how PrEP use relates to broader engagement in health care.

Design: In-depth qualitative interviews.

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Expanding PrEP access necessitates training that supports healthcare providers' progression along the PrEP implementation cascade, moving from PrEP awareness to prescription. We surveyed 359 USA providers about PrEP training content and format recommendations. We examined the association between cascade location and training recommendations.

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Identifying patients at increased risk for HIV acquisition can be challenging. Primary care providers (PCPs) may benefit from tools that help them identify appropriate candidates for HIV pre-exposure prophylaxis (PrEP). We and others have previously developed and validated HIV risk prediction models to identify PrEP candidates using electronic health records data.

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In this large online survey of primarily men who have sex with men, those who used preexposure prophylaxis reported greater sexual satisfaction than did nonusers, including sexual sensations, sexual presence/awareness, and sexual exchange. Person-centered care and messaging may require acknowledging that some people use preexposure prophylaxis for reasons beyond HIV prevention.

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