Sheena McCormack

Biographic Data

ID7446629
NAMESheena McCormack
GIVEN NAMESSheena
FAMILY NAMEMcCormack
SIGNATUREMCCORMACK S
AFFILIATIONSChelsea and Westminster Hospital NHS Foundation Trust
ORCID0000-0002-7829-1325
VERIFIEDYes
TOTAL WORKS13
TOTAL CITATIONS0
AUTHOR COUNT13
EDITOR COUNT0
FIRST PUBLICATION YEAR2011
LATEST PUBLICATION YEAR2025
H-INDEX0

  • In danger

    Open AccessRoger Tatoud, Yves Lévy et al.ARTICLEPLOS Global Public Health2025

    Highly effective antiretroviral-based HIV prevention plays an important role in ending the global HIV/AIDS epidemic. However, the sustainable control of the epidemic is hampered by unequal access to prevention options, including HIV testing, alongside with drug resistance and ongoing barriers to accessing sustainable HIV treatment. Therefore, an HIV vaccine, combined with effective prevention and treatment, remains an absolute necessity to contro…

  • Psychological and Behavioural Within-participant Predictors of Adherence to Oral HIV Pre-Exposure Prophylaxis (PrEP)

    Open AccessAlison Taylor, Alison D Taylor et al.ARTICLEAIDS and Behavior2023

    Oral PrEP's effectiveness relies on adequate adherence during periods of substantial HIV risk. Since most PrEP users will miss doses, understanding predictors within participants can help to explain adherence. We used a cross-sectional, within-participant design with 67 gay, bisexual, and other men who have sex with men taking PrEP daily. Using a questionnaire, informed by the Information Motivation Behavioral Skills Model, participants were aske…

  • Perceptions and Practicalities Influencing Pre-exposure Prophylaxis Adherence Among Men Who Have Sex with Men in England

    Open AccessDora Arnold-Forster, Robert Horne et al.ARTICLEAIDS and Behavior2022

    PrEP is highly effective for HIV prevention but requires adequate adherence. In this paper we use the perceptions and practicalities approach (PAPA) to identify factors that influenced PrEP adherence using qualitative data from the PROUD study. From February 2014 to January 2016, we interviewed 41 gay, bisexual and other men-who-have-sex-with-men and one trans woman who were enrolled in the study. We purposively recruited participants for intervi…

  • Exploring Mechanisms of Action

    Open AccessT Charles Witzel, T Witzel et al.ARTICLEInternational Journal of…2020

    SELPHI involves two interventions: (A) It provides one HIV self-testing (HIVST) kit; (B) It offers 3-monthly repeat HIVST kits if participants report ongoing risk. A logic model underpinned by the Behaviour Change Wheel informed the design of the intervention. SELPHI recruited 10,135 cis-men and trans people in England and Wales, all reporting anal sex with a man. This paper explores how the interventions were experienced and the pathways to impa…

  • Intimate partner violence, depression, and sexual behaviour among gay, bisexual and other men who have sex with men in the PROUD trial

    Open AccessAda Miltz, Ada R Miltz et al.ARTICLEBMC Public Health2019

    ClinicalTrials.gov identifier: NCT02065986 . Registered 19 February 2014 (retrospectively registered)

  • Chemsex is not a barrier to self-reported daily PrEP adherence among PROUD study participants

    Open AccessCharlotte O'Halloran, Brian Rice et al.ARTICLEInternational Journal of Drug…2019

    These analyses suggest PrEP remains a feasible and effective HIV prevention method for GBM engaging in chemsex, a practise which is prevalent in this group and has been associated with increased HIV transmission risk

  • The Context of Sexual Risk Behaviour Among Men Who Have Sex with Men Seeking PrEP, and the Impact of PrEP on Sexual Behaviour

    Open AccessMitzy Gafos, Robert Horne et al.ARTICLEAIDS and Behavior2018

    There are still important gaps in our understanding of how people will incorporate PrEP into their existing HIV prevention strategies. In this paper, we explore how PrEP use impacted existing sexual risk behaviours and risk reduction strategies using qualitative data from the PROUD study. From February 2014 to January 2016, we conducted 41 in-depth interviews with gay, bisexual and other men who have sex with men (GBMSM) enrolled in the PROUD PrE…

  • Pre-exposure prophylaxis to prevent the acquisition of HIV-1 infection (PROUD)

    Open AccessSheena McCormack, D Dunn et al.ARTICLEThe Lancet2016

    BACKGROUND: Randomised placebo-controlled trials have shown that daily oral pre-exposure prophylaxis (PrEP) with tenofovir-emtricitabine reduces the risk of HIV infection. However, this benefit could be counteracted by risk compensation in users of PrEP. We did the PROUD study to assess this effect. METHODS: PROUD is an open-label randomised trial done at 13 sexual health clinics in England. We enrolled HIV-negative gay and other men who have sex…

  • Communication About Microbicide Use Between Couples in KwaZulu-Natal, South Africa

    Open Accessthe MDP team, Mitzy Gafos et al.ARTICLEAIDS and Behavior2014

    The ways in which couples communicate about microbicides is likely to influence microbicide uptake and usage. We collected quantitative data about whether women in a microbicide trial discussed microbicides with their partners and explored communication about microbicides during 79 in-depth-interviews with women enrolled in the trial and 17 focus-group discussions with community members. After 4 weeks in the trial, 60 % of 1092 women had discusse…

  • Ethical Considerations in Determining Standard of Prevention Packages for HIV Prevention Trials

    Open AccessBridget Haire, Morenike O Folayan et al.ARTICLEDeveloping World Bioethics2013

    The successful demonstration that antiretroviral ( ARV ) drugs can be used in diverse ways to reduce HIV acquisition or transmission risks – either taken as pre‐exposure prophylaxis ( PrEP ) by those who are uninfected or as early treatment for prevention ( T4P ) by those living with HIV – expands the armamentarium of existing HIV prevention tools. These findings have implications for the design of future HIV prevention research trials. With the …

  • How effective is effective enough? Opinions of potential end-users of microbicides from a rural South African community

    Mitzy Gafos, M Mzimela et al.ARTICLEAIDS Care2013

    To assess the views of potential end-users of a microbicide in KwaZulu-Natal regarding the characteristics that would justify further development, three focus group discussions were conducted in 2009 with 23 local staff members working on a microbicide clinical trial, 20 former trial participants and 14 Community Advisory Board members not enrolled in the trial, in an area with high HIV incidence and low consistent condom use. All participants ag…

  • The Implications of Post-coital Intravaginal Cleansing for the Introduction of Vaginal Microbicides in South Africa

    Open Accessthe MDP team, Mitzy Gafos et al.ARTICLEAIDS and Behavior2013

    Post-coital intravaginal cleansing (IVC) could counteract the protective effect of a vaginal microbicide. IVC less than 1 h after sex is discouraged in most microbicide trials. During a microbicide trial in KwaZulu-Natal, we collected quantitative data on post-coital IVC. We discussed IVC during in-depth-interviews (IDIs) and focus-group discussions (FGDs) with women enrolled in the trial, and during FGDs with community members. Nearly one-third …

  • HIV Incidence Among Non-Pregnant Women Living in Selected Rural, Semi-Rural and Urban Areas in Kwazulu-Natal, South Africa

    Open AccessGita Ramjee, Handan Wand et al.ARTICLEAIDS and Behavior2011

    The province of KwaZulu-Natal has the highest prevalence of HIV in South Africa, particularly among young women. In order to more closely examine the HIV prevalence and incidence in non-pregnant women from rural, semi-rural and urban areas, data from 5,753 women screened for enrolment into three HIV prevention studies were combined and analysed. The prevalence of HIV infection was 43% at screening. HIV incidence among the 2,523 enrolled HIV-negat…