1
|
Cameron MP, Newman PA, Chakrapani V, Shunmugam M, Roungprakhon S, Rawat S, Baruah D, Nelson R, Tepjan S, Scarpa R. Stated preferences for new HIV prevention technologies among men who have sex with men in India: A discrete choice experiment. PLoS One 2024; 19:e0289396. [PMID: 39046999 PMCID: PMC11268640 DOI: 10.1371/journal.pone.0289396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 07/10/2024] [Indexed: 07/27/2024] Open
Abstract
INTRODUCTION India has the second largest HIV epidemic in the world. Despite successes in epidemic control at the population level, a concentrated epidemic persists among gay and other men who have sex with men (MSM). However, India lags in implementation of biomedical prevention technologies, such as HIV pre-exposure prophylaxis (PrEP). In order to inform scale-up of new HIV prevention technologies, including those in the development pipeline, we assessed willingness to use oral PrEP, rectal microbicides, and HIV vaccines, and choices among product characteristics, among MSM in two major Indian cities. METHODS A cross-sectional survey was conducted with a discrete choice experiment (DCE), an established methodology for quantitively estimating end-user preferences in healthcare. Survey participants were randomly assigned to one of three questionnaire versions, each of which included a DCE for one prevention technology. Participants were recruited using chain-referral sampling by peer outreach workers, beginning with seeds in community-based organizations and public sex environments, in Chennai and Mumbai. DCE data were analyzed using random-parameters (mixed) logit (RPL) models. RESULTS Among participants (n = 600), median age was 25 years, with median monthly income of INR 9,000 (~US$125). Nearly one-third (32%) had completed a college degree and 82% were single/never married. A majority of participants (63%) reported condomless anal sex in the past month. The acceptability of all three products was universally high (≥90%). Across all three products, four attributes were significant predictors of acceptability-with efficacy consistently the most important attribute, and in decreasing order of preference, side-effects, dosing schedule, and venue. MSM varied in their preferences for product attributes in relation to their levels of education and income, and engagement in sex work and HIV risk behavior. CONCLUSION This study provides empirical evidence to facilitate the integration of end users' preferences throughout design, testing, and dissemination phases of HIV prevention technologies. The findings also suggest action points and targets for interventions for diverse subgroups to support the effectiveness of combination HIV prevention among MSM in India.
Collapse
Affiliation(s)
- Michael P. Cameron
- School of Accounting, Finance and Economics, University of Waikato, Hamilton, New Zealand
| | - Peter A. Newman
- Factor-Inwentash Faculty of Social Work, University of Toronto, Ontario, Canada
| | | | - Murali Shunmugam
- Centre for Sexuality and Health Research and Policy, Chennai, India
| | - Surachet Roungprakhon
- Faculty of Science and Technology, Rajamangala University of Technology, Phra Nakhon, Bangkok, Thailand
| | | | | | - Ruban Nelson
- Centre for Sexuality and Health Research and Policy, Chennai, India
| | | | - Riccardo Scarpa
- School of Accounting, Finance and Economics, University of Waikato, Hamilton, New Zealand
- Business School, Durham University, Durham, United Kingdom
| |
Collapse
|
2
|
Choi J, May SB, Dang BN, Markham C, McGlone M, Cuccaro PM. Acceptability of a Future HIV Vaccine: A Rapid Scoping Review. J Acquir Immune Defic Syndr 2024; 96:197-207. [PMID: 38905472 DOI: 10.1097/qai.0000000000003416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/29/2024] [Indexed: 06/23/2024]
Abstract
BACKGROUND A HIV vaccine is not available yet, but perceptions of HIV vaccines will be important to explore before their roll-out for effective vaccine promotion. This article presents the findings of a rapid scoping review of the literature to identify individual, social, and vaccine-related factors associated with the acceptability of a future HIV vaccine. METHODS We searched 5 databases (Medline OVID, Embase, PsycINFO, Web of Science, and Cochrane) using relevant keywords and Medical Subject Headings. All articles, regardless of study design, publication year, and geographic location, were included if they examined HIV vaccine acceptability and its underlying factors. RESULTS We retrieved 2386 unique articles, of which 76 were included in the final review. Perceived benefits (34.2%) and perceived susceptibility (25.0%) were primary individual factors of HIV vaccine acceptability. Misinformation (17.1%) and distrust (22.4%) regarding future HIV vaccines, HIV stigma (30.3%), and social support (10.5%) were social factors of HIV vaccine acceptability. Vaccine efficacy (42.1%), cost (28.9%), and side effects (67.1%) were common vaccine characteristics influencing HIV vaccine acceptability. Altruism (10.5%) and risk compensation (26.3%) were also key factors. CONCLUSIONS Our analyses revealed that skeptical beliefs, negative perceptions, and misconceptions about HIV vaccines are real barriers to their acceptability. To alleviate HIV vaccine hesitancy and address trust concerns, strategic vaccine communication should be disseminated by trustworthy sources. Messages should impart accurate vaccine information and emphasize both individual and social benefits of HIV vaccination, as well as leverage social support in increasing willingness to get a future HIV vaccine.
Collapse
Affiliation(s)
- Jihye Choi
- Department of Health Promotion and Behavioral Sciences, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
| | - Sarah B May
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX
| | - Bich N Dang
- Section of Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, TX
- VA Center for Innovations in Quality, Effectiveness, and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX; and
| | - Christine Markham
- Department of Health Promotion and Behavioral Sciences, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
| | - Matthew McGlone
- Department of Communication Studies, Moody College of Communication, The University of Texas at Austin, Austin, TX
| | - Paula M Cuccaro
- Department of Health Promotion and Behavioral Sciences, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
- Center for Health Promotion and Prevention Research, The University of Texas Health Science Center at Houston School of Public Health, Houston, TX
| |
Collapse
|
3
|
Meskell P, Biesty LM, Dowling M, Roche K, Meehan E, Glenton C, Devane D, Shepperd S, Booth A, Cox R, Chan XHS, Houghton C. Factors that impact on recruitment to vaccine trials in the context of a pandemic or epidemic: a qualitative evidence synthesis. Cochrane Database Syst Rev 2023; 9:MR000065. [PMID: 37655964 PMCID: PMC10472890 DOI: 10.1002/14651858.mr000065.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
BACKGROUND The World Health Organization declared the COVID-19 pandemic on 11 March 2020. Vaccine development and deployment were swiftly prioritised as a method to manage and control disease spread. The development of an effective vaccine relies on people's participation in randomised trials. Recruitment to vaccine trials is particularly challenging as it involves healthy volunteers who may have concerns around the potential risks and benefits associated with rapidly developed vaccines. OBJECTIVES To explore the factors that influence a person's decision to participate in a vaccine trial in the context of a pandemic or epidemic. SEARCH METHODS We used standard, extensive Cochrane search methods. The latest search date was June 2021. SELECTION CRITERIA We included qualitative studies and mixed-methods studies with an identifiable qualitative component. We included studies that explored the perspectives of adults aged 18 years or older who were invited to take part in vaccine trials in the context of a pandemic or epidemic. DATA COLLECTION AND ANALYSIS We assessed the title, abstracts and full texts identified by the search. We used a sampling frame to identify data-rich studies that represented a range of diseases and geographical spread. We used QSR NVivo to manage extracted data. We assessed methodological limitations using an adapted version of the Critical Skills Appraisal Programme (CASP) tool for qualitative studies. We used the 'best-fit framework approach' to analyse and synthesise the evidence from our included studies. We then used the Confidence in the Evidence from Reviews of Qualitative research (GRADE-CERQual) assessment to assess our confidence in each finding and develop implications for practice. MAIN RESULTS We included 34 studies in our review. Most studies related to HIV vaccine trials. The other studies related to Ebola virus, tuberculosis, Zika virus and COVID-19. We developed 20 key findings, under three broad themes (with seven subthemes), that described the factors that people consider when deciding whether to take part in a vaccine trial for a pandemic or epidemic disease. Our GRADE-CERQual confidence was high in nine of the key findings, moderate in 10 key findings and low in one key finding. The main reason for downgrading review findings were concerns regarding the relevance and adequacy of the underlying data. As a result of the over-representation of HIV studies, our GRADE-CERQual assessment of some findings was downgraded in terms of relevance because the views described may not reflect those of people regarding vaccine trials for other pandemic or epidemic diseases. Adequacy relates to the degree of richness and quantity of data supporting a review finding. Moderate concerns about adequacy resulted in a downgrading of some review findings. Some factors were considered to be under the control of the trial team. These included how trial information was communicated and the inclusion of people in the community to help with trial information dissemination. Aspects of trial design were also considered under control of the trial team and included convenience of participation, provision of financial incentives and access to additional support services for those taking part in the trial. Other factors influencing people's decision to take part could be personal, from family, friends or wider society. From a personal perceptive, people had concerns about vaccine side effects, vaccine efficacy and possible impact on their daily lives (carer responsibilities, work, etc.). People were also influenced by their families, and the impact participation may have on relationships. The fear of stigma from society influenced the decision to take part. Also, from a societal perspective, the level of trust in governments' involvement in research and trial may influence a person's decision. Finally, the perceived rewards, both personal and societal, were influencing factors on the decision to participate. Personal rewards included access to a vaccine, improved health and improved disease knowledge, and a return to normality in the context of a pandemic or epidemic. Potential societal rewards included helping the community and contributing to science, often motivated by the memories of family and friends who had died from the disease. AUTHORS' CONCLUSIONS This review identifies many of the factors that influence a person's decision to take part in a vaccine trial, and these reflect findings from reviews that examine trials more broadly. However, we also recognise some factors that become more important in connection with a vaccine trial in the context of a pandemic or epidemic. These factors include the potential stigma of taking part, the possible adverse effects of a vaccine, the added motivation for helping society, the role of community leaders in trial dissemination, and the level of trust placed in governments and companies developing vaccines. These specific influences need to be considered by trial teams when designing, and communicating about, vaccine trials in the context of a pandemic or epidemic.
Collapse
Affiliation(s)
- Pauline Meskell
- Department of Nursing and Midwifery, University of Limerick, Limerick, Ireland
| | - Linda M Biesty
- School of Nursing and Midwifery, National University of Ireland, Galway, Galway, Ireland
| | - Maura Dowling
- School of Nursing and Midwifery, National University of Ireland, Galway, Galway, Ireland
| | | | - Elaine Meehan
- Ageing Research Centre, School of Allied Health, University of Limerick, Limerick, Ireland
| | | | - Declan Devane
- School of Nursing and Midwifery, National University of Ireland, Galway, Galway, Ireland
| | - Sasha Shepperd
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Andrew Booth
- School of Health and Related Research, University of Sheffield, ScHARR, Sheffield, UK
| | - Rebecca Cox
- Department of Clinical Sciences, University of Bergen, Bergen, Norway
| | - Xin Hui S Chan
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK
| | - Catherine Houghton
- School of Nursing and Midwifery, National University of Ireland, Galway, Galway, Ireland
| |
Collapse
|
4
|
Vanderslott S, Emary K, te Water Naude R, English M, Thomas T, Patrick-Smith M, Henry J, Douglas N, Moore M, Stuart A, Hodgson SH, Pollard AJ. Vaccine nationalism and internationalism: perspectives of COVID-19 vaccine trial participants in the United Kingdom. BMJ Glob Health 2021; 6:bmjgh-2021-006305. [PMID: 34666989 PMCID: PMC8526520 DOI: 10.1136/bmjgh-2021-006305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 09/25/2021] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Vaccine nationalism has become a key topic of discussion during the development, testing, and rollout of COVID-19 vaccines. Media attention has highlighted the ways that global, coordinated access to vaccines has been limited during the pandemic. It has also exposed how some countries have secured vaccine supply, through bilateral purchase agreements and the way pharmaceutical companies have priced, negotiated, and delivered these supplies. Much of the focus of this debate has been on the vaccine supply 'winners' and 'losers', but the voices of public opinion have been more limited. METHODS We explore the concepts of vaccine nationalism and internationalism from the perspective of vaccine trial participants, using an empirical perspectives study that involved interviews with phase I/II COVID-19 vaccine trial participants in Oxford, UK. We surveyed and interviewed participants between September and October 2020 about their views, motivations and experiences in taking part in the trial. RESULTS First, we show how trial participants describe national and international ideas about vaccination as intertwined and challenge claims that these positions are mutually exclusive or oppositional. Second, we analyse these viewpoints further to show that vaccine nationalism is closely connected with national pride and metaphors of a country's scientific achievements. Participants held a global outlook and were highly supportive of the prioritisation of vaccines by global need, but many were also pessimistic that such a solution could be possible. CONCLUSION Trial participants constitute an informed public group, with situated public expertise that the global community could draw on as an expert opinion. We argue that vaccine nationalism is strongly attached to national character and, therefore, it is more difficult for ownership of a vaccine to be though of as international.
Collapse
Affiliation(s)
- Samantha Vanderslott
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Katherine Emary
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Rebecca te Water Naude
- Medical School, Medical Sciences Division, University of Oxford, Oxford, Oxfordshire, UK
| | - Marcus English
- Medical School, Medical Sciences Division, University of Oxford, Oxford, Oxfordshire, UK
| | - Tonia Thomas
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Maia Patrick-Smith
- Medical School, Medical Sciences Division, University of Oxford, Oxford, Oxfordshire, UK
| | - John Henry
- Medical School, Medical Sciences Division, University of Oxford, Oxford, Oxfordshire, UK
| | - Naomi Douglas
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Maria Moore
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Arabella Stuart
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Susanne H Hodgson
- Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, Oxfordshire, UK
| | - Andrew J Pollard
- Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, Oxfordshire, UK,NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| |
Collapse
|
5
|
Willingness to Use Pre-exposure Prophylaxis (PrEP) and Preferences Among Men Who have Sex with Men in Mumbai and Chennai, India: A Discrete Choice Experiment. AIDS Behav 2021; 25:3074-3084. [PMID: 33818643 DOI: 10.1007/s10461-021-03253-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2021] [Indexed: 01/07/2023]
Abstract
Pre-exposure prophylaxis (PrEP) programs are planned for key populations in India. We examined PrEP awareness and willingness to use PrEP in order to support products and services for MSM. From December 2016 to March 2017, we conducted a survey and discrete choice experiment (DCE)-a technique to quantify the strength of participants' trade-off preferences among various product attributes-to assess willingness to use PrEP and related preferences. MSM were recruited from cruising sites and HIV prevention services in Mumbai and Chennai. DCE data were analyzed using mixed logit regression models and estimated marginal willingness-to-pay, the relative value participants' place on different PrEP attributes. Overall, 76.6% indicated willingness to use PrEP. Efficacy had the greatest effect on choice (high vs. moderate, aOR = 19.9; 95% CI 13.0-30.4), followed by dosing frequency (intermittent vs. daily regimen, aOR = 2.02; 95% CI 1.8-2.2). Participants preferred no (vs. minor) side-effects, subsidized (vs. market) price, and government (vs. private) hospitals. Findings suggest that educational and social marketing interventions should emphasize PrEP's high efficacy and minimal side effects, and programs should provide government-subsidized PrEP with choices of intermittent or daily dosing delivered by government and private hospitals/clinics in order to optimize PrEP uptake among MSM in India.
Collapse
|
6
|
Kitonsa J, Kamacooko O, Bahemuka UM, Kibengo F, Kakande A, Wajja A, Basajja V, Lumala A, Ssemwanga E, Asaba R, Mugisha J, Pierce BF, Shattock R, Kaleebu P, Ruzagira E. Willingness to participate in COVID-19 vaccine trials; a survey among a population of healthcare workers in Uganda. PLoS One 2021; 16:e0251992. [PMID: 34043693 PMCID: PMC8158909 DOI: 10.1371/journal.pone.0251992] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/07/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Healthcare workers (HCWs) are at high risk of acquiring SARS-CoV-2 and COVID-19 and may therefore be a suitable population for COVID-19 vaccine trials. We conducted a survey to evaluate willingness-to-participate in COVID-19 vaccine trials in a population of HCWs at three hospitals in Uganda. METHODS The survey was conducted between September and November 2020. Using a standardised questionnaire, data were collected on socio-demographics, previous participation in health research, COVID-19 information sources, underlying health conditions, and willingness-to-participate in COVID-19 vaccine trials. Data were analysed descriptively and a binomial generalised linear model with a log link function used to investigate factors associated with unwillingness to participate. RESULTS 657 HCWs (female, 63%) were enrolled with a mean age of 33 years (Standard Deviation, 10). Overall willingness-to-participate was 70.2%. Key motivating factors for participation were: hope of being protected against COVID-19 (81.1%), altruism (73.3%), and the opportunity to get health care (26.0%). Selected hypothetical trial attributes reduced willingness-to-participate as follows: weekly-quarterly study visits over a 12-month period (70.2%-63.2%, P = 0.026); provision of approximately 50ml of blood at each study visit (70.2%-63.2%, P = 0.026); risk of mild-moderate local adverse reactions (70.2%-60.3%, P<0.001); chance of receiving candidate vaccine or placebo (70.2%-56.9%, P<0.001); and delay of pregnancy [Overall, 70.2%-57.1% P<0.001); Female, 62.8%-48.4% (P = 0.002); Male, 82.5%-71.5% (P = 0.003)]. Collectively, these attributes reduced willingness-to-participate from [70.2%-42.2% (P<0.001) overall; 82.5%-58.1% (P<0.001) in men; 62.8%-32.6% (P<0.001) in women]. Among individuals that were unwilling to participate, the commonest barriers were concerns over vaccine safety (54.6%) and fear of catching SARS-CoV-2 (31.6%). Unwillingness to participate was associated with being female (aRR 1.97, CI 1.46-2.67, P<0.001) and having university or other higher-level education (aRR 1.52, CI 1.05-2.2, P = 0.026). CONCLUSIONS Willingness-to-participate in COVID-19 vaccine trials among HCWs in Uganda is high but may be affected by vaccine trial requirements and concerns about the safety of candidate vaccines.
Collapse
Affiliation(s)
- Jonathan Kitonsa
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Onesmus Kamacooko
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Ubaldo Mushabe Bahemuka
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Freddie Kibengo
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Ayoub Kakande
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Anne Wajja
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Vincent Basajja
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | | | | | - Robert Asaba
- Our Lady of Consolata Kisubi Hospital, Wakiso District, Uganda
| | - Joseph Mugisha
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Benjamin F. Pierce
- Department of Infectious Disease, Imperial College London, Norfolk Place, London, United Kingdom
| | - Robin Shattock
- Department of Infectious Disease, Imperial College London, Norfolk Place, London, United Kingdom
| | - Pontiano Kaleebu
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Eugene Ruzagira
- Medical Research Council / Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| |
Collapse
|
7
|
Andrasik MP, Sesay FA, Isaacs A, Oseso L, Allen M. Social Impacts Among Participants in HIV Vaccine Trial Network (HVTN) Preventive HIV Vaccine Trials. J Acquir Immune Defic Syndr 2020; 84:488-496. [PMID: 32692107 PMCID: PMC8012001 DOI: 10.1097/qai.0000000000002369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Given the persistent stigma and discrimination against HIV worldwide, preventive HIV vaccine trials face unique challenges. Negative social impacts (NSIs)-problems that HIV vaccine trial participants face in many different spheres of their lives related to trial participation-have received a great deal of attention. Beneficial social impacts (BSIs)-perceived benefits experienced by a participant and resulting from their trial participation-are a critical component of participants' experiences, yet they have received little attention. SETTING All HIV Vaccine Trials Network trial participants for whom social impact data were available-8347 participants in 13 countries who enrolled in 48 phase 1, 2a, and 2b trials. METHODS A cross-protocol analysis to assess self-reported BSIs and NSIs related to participating in a preventive HIV vaccine trial. Data were obtained from 48 completed HIV Vaccine Trials Network vaccine trials from December 2000 to September 2017. RESULTS Overall, 6572 participants (81%) reported at least one BSI, and 686 participants (8%) reported 819 NSI events. Altruism/feeling good helping others was the BSI most often endorsed by study participants (43%), followed by receiving risk-reduction counseling (30%). Most NSI events (81%) were reported by US/Swiss participants, and most (79%) trial-related NSIs were negative reactions from friends, family, and partners. Of the NSIs reported, 7% were considered to have a major impact on the participant's quality of life. CONCLUSION Our results underscore the relatively common experiences of BSIs among preventive HIV vaccine trial participants and mirror the results of other studies that find infrequent reports of NSIs.
Collapse
Affiliation(s)
- Michele P Andrasik
- Vaccine and Infectious Disease Division (VIDD), Fred Hutchinson Cancer Research Center, Seattle, WA
- Department of Global Health, University of Washington, Seattle, WA; and
| | | | - Abby Isaacs
- Vaccine and Infectious Disease Division (VIDD), Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Linda Oseso
- Vaccine and Infectious Disease Division (VIDD), Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Mary Allen
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases (NIAID), National Institute of Health, Bethesda, MD
| |
Collapse
|
8
|
Dubé K, Simoni J, Louella M, Sylla L, Mohamed ZH, Patel H, Luter S, Collier AC. Acceptability of Cell and Gene Therapy for Curing HIV Infection Among People Living with HIV in the Northwestern United States: A Qualitative Study. AIDS Res Hum Retroviruses 2019; 35:649-659. [PMID: 30990052 PMCID: PMC6602097 DOI: 10.1089/aid.2019.0021] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Multiple strategies to cure HIV infection are under investigation, including cell and gene therapy (C>) approaches. Research, and ultimately treatment, with these novel strategies will require patients' willingness to participate. To elicit the perspectives of people living with HIV specific to these novel approaches, we conducted 4 focus group discussions with a diverse group of 19 English-speaking men and women living with HIV in care at a large academic HIV clinic in the northwestern United States. Thematic analysis indicated participants expressed initial fear about C> research. They articulated specific concerns about risks, including analytical treatment interruptions, and thought only a person in desperate straits would participate. They voiced significant mistrust of research in general and believed there was already a cure from HIV that was being withheld from the poor. Overall, they were satisfied with their health and quality of life on antiretroviral therapy. These findings suggest the importance of community engagement and educational efforts about C> for HIV cure to ensure optimal collaborative partnerships.
Collapse
Affiliation(s)
- Karine Dubé
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jane Simoni
- Department of Global Health, University of Washington, Seattle, Washington
- Department of Psychology, University of Washington, Seattle, Washington
| | - Michael Louella
- defeatHIV Community Advisory Board (CAB), Seattle, Washington
- University of Washington Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| | - Laurie Sylla
- defeatHIV Community Advisory Board (CAB), Seattle, Washington
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| | - Zahra H. Mohamed
- Department of Global Health, University of Washington, Seattle, Washington
| | - Hursch Patel
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Stuart Luter
- UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ann C. Collier
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| |
Collapse
|
9
|
Rubincam C, Newman PA, Atujuna M, Bekker LG. 'Why would you promote something that is less percent safer than a condom?': Perspectives on partially effective HIV prevention technologies among key populations in South Africa. SAHARA J 2018; 15:179-186. [PMID: 30360675 PMCID: PMC6211311 DOI: 10.1080/17290376.2018.1536561] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
New biomedical prevention technologies (NPTs) for HIV, including oral Pre-Exposure Prophylaxis, and vaginal and rectal microbicides and HIV vaccines in development, may contribute substantially to controlling the HIV epidemic. However, their effectiveness is contingent on product acceptability and adherence. We explored perceptions and understanding of partially effective NPTs with key populations in South African townships. From October 2013 to February 2014, we conducted six focus groups and 18 individual interviews with Xhosa-speaking adolescents (n = 14), adult men who have sex with men (MSM) (n = 15), and adult heterosexual men (n = 9) and women (n = 10), and eight key informant (KI) interviews with healthcare workers. Interviews/focus groups were transcribed and reviewed using a thematic approach and framework analysis. Overall, participants and KIs indicated scepticism about NPTs that were not 100% efficacious. Some participants equated not being 100% effective with not being completely safe, and thus not appropriate for dissemination. KIs expressed concerns that promoting partially effective NPTs would encourage substitution of a more effective with a less effective method or encourage risk compensation. Educational and social marketing interventions that address the benefits and appropriate use of partially effective NPTs, including education and support tailored for frontline service providers, are needed to prepare for successful NPT implementation in South Africa.
Collapse
Affiliation(s)
- Clara Rubincam
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Peter A. Newman
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Millicent Atujuna
- Desmond Tutu HIV Foundation, Institute of Infectious Disease, Health Sciences Faculty, University of Cape Town, Cape Town, South Africa
| | - Linda-Gail Bekker
- Desmond Tutu HIV Foundation, Institute of Infectious Disease, Health Sciences Faculty, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
10
|
Newman PA, Guta A, Lacombe‐Duncan A, Tepjan S. Clinical exigencies, psychosocial realities: negotiating HIV pre-exposure prophylaxis beyond the cascade among gay, bisexual and other men who have sex with men in Canada. J Int AIDS Soc 2018; 21:e25211. [PMID: 30474351 PMCID: PMC6253066 DOI: 10.1002/jia2.25211] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 10/29/2018] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Notwithstanding the efficacy of oral pre-exposure prophylaxis (PrEP) in clinical trials, a number of obstacles exist to achieving population-level impact among gay, bisexual and other men who have sex with men (GBM). However, few studies have explored the subjective experiences of GBM PrEP users and non-users in the community, outside of clinical trials. The objectives of this study were to explore GBM's experiences of considering, accessing and using (or not using) PrEP, and to understand emerging sexual health, social and community issues among GBM in the PrEP era. METHODS From October 2015 to March 2016, we purposively sampled PrEP-naïve and PrEP-experienced GBM from community organizations and health centres in Toronto, Canada. In-depth, 45- to 90-minute semi-structured interviews explored PrEP perspectives and decision-making, access, initiation, use over time, sexual practices and psychosocial considerations. Interviews were recorded, transcribed verbatim, uploaded into NVIVO, reviewed using thematic analysis and then contrasted with the PrEP cascade. RESULTS Participants included PrEP users (n = 15) and non-users (n = 14) (mean age = 36.7 years; SD = 8.2), largely gay-identified (86.2%), cisgender male (89.7%) and white (79.3%). Themes indicate not only correspondences, but also limitations of the PrEP cascade by complicating a user/non-user binary and challenging the unilateral presupposition that HIV risk perception leads to PrEP acceptance. Findings further call into question assumptions of a linear stage progression and retention in care as a universal endpoint, instead revealing alternate trajectories of seasonal or intermittent PrEP use and, for some, an end goal of terminating PrEP. GBM's narratives also revealed potent psychological/affective experiences of untethering sex from HIV anxiety; multifaceted PrEP stigma; and challenges to sexual norms and practices that complicate existing behavioural prevention strategies and sexual and social relationships. CONCLUSIONS An expanded PrEP cascade should consider alternate trajectories of use based on dynamic relationships and behavioural risks that may call for seasonal or intermittent use; systemic barriers in access to and sustaining PrEP; and multiple end goals including PrEP maintenance and discontinuation. Incorporating GBM's lived experiences, evolving preferences, and psychosocial and community-level challenges into PrEP implementation models, rather than a circumscribed biomedical approach, may more effectively support HIV prevention and GBM's broader sexual and psychological health.
Collapse
Affiliation(s)
- Peter A Newman
- Factor‐Inwentash Faculty of Social WorkUniversity of TorontoTorontoONCanada
| | - Adrian Guta
- School of Social WorkUniversity of WindsorWindsorONCanada
| | - Ashley Lacombe‐Duncan
- Factor‐Inwentash Faculty of Social WorkUniversity of TorontoTorontoONCanada
- School of Social WorkUniversity of MichiganAnn ArborMIUSA
| | - Suchon Tepjan
- Factor‐Inwentash Faculty of Social WorkUniversity of TorontoTorontoONCanada
| |
Collapse
|
11
|
Atujuna M, Newman PA, Wallace M, Eluhu M, Rubincam C, Brown B, Bekker LG. Contexts of vulnerability and the acceptability of new biomedical HIV prevention technologies among key populations in South Africa: A qualitative study. PLoS One 2018; 13:e0191251. [PMID: 29420549 PMCID: PMC5805172 DOI: 10.1371/journal.pone.0191251] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/02/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND New biomedical prevention technologies (NPTs) may contribute to substantially reducing incident HIV infections globally. We explored acceptability and preferences for NPTs among key and other vulnerable populations in two South African townships. METHODS We conducted six focus groups and 12 in-depth interviews with adolescents, and adult heterosexual men, women, and men who have sex with men (MSM) (n = 48), and eight in-depth interviews with key informant healthcare workers. The interview guide described pre-exposure prophylaxis (PrEP), vaginal rings, rectal microbicides and HIV vaccines, and explored acceptability and product preferences. Focus groups and in-depth interviews (45-80 minutes) were conducted in Xhosa, audiotaped, and transcribed and translated into English. Data were coded and reviewed using framework analysis with NVivo software. RESULTS Overall, initial enthusiasm and willingness to use NPTs evolved into concerns about how particular NPTs might affect or require alterations in one's everyday lifestyle and practices. Different product preferences and motivations emerged by population based on similarity to existing practices and contexts of vulnerability. Adult women and female adolescents preferred a vaginal ring and HIV vaccine, motivated by longer duration of protection to mitigate feared repercussions from male partners, including threats to their marriage and safety, and a context of ubiquitous rape. Male adolescents preferred an HIV vaccine, seen as protection in serodiscordant relationships and convenient in obviating the HIV stigma and cost involved in buying condoms. Adult men preferred PrEP, given familiarity with oral medications and mistrust of injections, seen as enabling serodiscordant couples to have a child. MSM preferred a rectal microbicide given familiarity with gel-based lubricants, with concerns about duration of protection in the context of unplanned consensual sex and rape. CONCLUSIONS Biomedical interventions to prevent HIV transmission, rather than obviating social-structural factors that produce vulnerability, may be limited by these same factors. Implementation of NPTs should engage local communities to understand real-world constraints and strategise to deliver effective, multi-level combination prevention.
Collapse
Affiliation(s)
- Millicent Atujuna
- Desmond Tutu HIV Foundation, Health Sciences Faculty, Institute of Infectious Disease, University of Cape Town, Cape Town, South Africa
| | - Peter A. Newman
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Melissa Wallace
- Desmond Tutu HIV Foundation, Health Sciences Faculty, Institute of Infectious Disease, University of Cape Town, Cape Town, South Africa
| | - Megan Eluhu
- Desmond Tutu HIV Foundation, Health Sciences Faculty, Institute of Infectious Disease, University of Cape Town, Cape Town, South Africa
| | - Clara Rubincam
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Ben Brown
- Desmond Tutu HIV Foundation, Health Sciences Faculty, Institute of Infectious Disease, University of Cape Town, Cape Town, South Africa
| | - Linda-Gail Bekker
- Desmond Tutu HIV Foundation, Health Sciences Faculty, Institute of Infectious Disease, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
12
|
Chin LJ, Berenson JA, Klitzman RL. Typologies of Altruistic and Financial Motivations for Research Participation. J Empir Res Hum Res Ethics 2017; 11:299-310. [PMID: 28251864 DOI: 10.1177/1556264616679537] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Questions arise concerning participants' motives in risky studies, such as HIV vaccine trials (HVTs). We interviewed in-depth 20 gay/bisexual men. Participants described both altruistic and nonaltruistic motives. Altruistic motivations emerged primarily, with nine typologies: (a) cultural, (b) community related, (c) familial, (d) religious, (e) professional, (f) political (e.g., HIV activism), (g) moral (e.g., making up for past wrongs), (h) existential (e.g., providing sense of meaning), and (i) other psychological (e.g., emotional gratification). Views of compensation varied: not a factor (55%), added incentive (25%), main motivator, but in conjunction with altruism (15%), and primary motivator (5%). HVT participants thus often have both altruistic and financial motives, and related typologies emerged. These findings have critical implications for studies on HIV, other conditions, and research ethics.
Collapse
Affiliation(s)
- Lisa J Chin
- 1 State University of New York College at Old Westbury, USA
| | | | | |
Collapse
|
13
|
Chakrapani V, Newman PA, Shunmugam M, Mengle S, Nelson R, Rubincam C, Kumar P. "Like Holding an Umbrella Before It Rains": Acceptability of Future Rectal Microbicides Among Men Who Have Sex With Men in India-A Modified Technology Acceptance Model. QUALITATIVE HEALTH RESEARCH 2017; 27:1236-1248. [PMID: 28682740 DOI: 10.1177/1049732317697947] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Topical rectal microbicides (RMs) are a new prevention technology in development that aims to reduce the risk of HIV acquisition from anal sex. We examined RM acceptability among men who have sex with men (MSM) in India. We conducted a qualitative exploratory study guided by a modified Technology Acceptance Model, with 10 focus groups ( n = 61) of MSM and 10 key informant interviews. Data were explored using framework analysis. RM acceptability was influenced by technological contexts: perceived usefulness of RMs, perceived ease of use of RM and applicator, and habits around condom and lubricant use; individual and interpersonal contexts: perceived relevance and preferences for product formulation and dosing frequency; and MSM community/social contexts: perceived social approval, RM-related stigma, social support. Implementation of RMs for MSM in India may be supported by multi-level interventions that engage community-based organizations in destigmatizing and distributing RMs, ideally gel-based products that enable on-demand use before sex.
Collapse
Affiliation(s)
- Venkatesan Chakrapani
- 1 Centre for Sexuality and Health Research and Policy, Chennai, India
- 2 The Humsafar Trust, Mumbai, India
- 3 PostGraduate Institute of Medical Education & Research, Chandigarh, India
| | | | - Murali Shunmugam
- 1 Centre for Sexuality and Health Research and Policy, Chennai, India
| | | | - Ruban Nelson
- 1 Centre for Sexuality and Health Research and Policy, Chennai, India
| | | | | |
Collapse
|
14
|
Newman PA, Cameron MP, Roungprakhon S, Tepjan S, Scarpa R. Acceptability and Preferences for Hypothetical Rectal Microbicides among a Community Sample of Young Men Who Have Sex with Men and Transgender Women in Thailand: A Discrete Choice Experiment. AIDS Behav 2016; 20:2588-2601. [PMID: 26696260 DOI: 10.1007/s10461-015-1258-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Rectal microbicides (RMs) may offer substantial benefits in expanding HIV prevention options for key populations. From April to August 2013, we conducted Tablet-Assisted Survey Interviewing, including a discrete choice experiment, with participants recruited from gay entertainment venues and community-based organizations in Chiang Mai and Pattaya, Thailand. Among 408 participants, 74.5 % were young men who have sex with men, 25.5 % transgender women, with mean age = 24.3 years. One-third (35.5 %) had ≤9th grade education; 63.4 % engaged in sex work. Overall, 83.4 % reported they would definitely use a RM, with more than 2-fold higher odds of choice of a RM with 99 versus 50 % efficacy, and significantly higher odds of choosing gel versus suppository, intermittent versus daily dosing, and prescription versus over-the-counter. Sex workers were significantly more likely to use a RM immediately upon availability, with greater tolerance for moderate efficacy and daily dosing. Engaging key populations in assessing RM preferences may support biomedical research and evidence-informed interventions to optimize the effectiveness of RMs in HIV prevention.
Collapse
Affiliation(s)
- Peter A Newman
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON, M5S 1V4, Canada.
| | - Michael P Cameron
- Department of Economics, University of Waikato, Hamilton, New Zealand
| | - Surachet Roungprakhon
- Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon, Bangkok, Thailand
| | - Suchon Tepjan
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON, M5S 1V4, Canada
| | - Riccardo Scarpa
- Department of Economics, University of Waikato, Hamilton, New Zealand
| |
Collapse
|
15
|
Dhalla S, Poole G. Effect of race/ethnicity on participation in HIV vaccine trials and comparison to other trials of biomedical prevention. Hum Vaccin Immunother 2016; 10:1974-84. [PMID: 25424807 DOI: 10.4161/hv.28870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
INTRODUCTION Racial/ethnic minorities are underrepresented in actual HIV vaccine trials in North America, and willingness to participate (WTP) and retention in an HIV vaccine trial may differ from that in Whites. METHODS In this review, the authors identified HIV vaccine preparedness studies (VPS) in North America in high-risk populations that examined the relationship between race/ethnicity and WTP in a preventive phase 3 HIV vaccine trial, and the relationship to retention. Studies were categorized by risk group, and comparison group (Whites vs. non-Whites). Other types of trials of biomedical prevention were also identified, and WTP and retention rates were compared and contrasted to actual HIV vaccine trials. RESULTS In the studies identified, WTP in a hypothetical trial HIV vaccine trial did not differ by race/ethnicity. In contrast, actual HIV vaccine trials, an HIV acquisition trial, and a phase 2B preexposure prophylaxis (PrEP) trial have enrolled a large percentage of White men. Human papilloma virus (HPV) privately-funded trials have also enrolled a large number of Whites, due to convenience sampling. Retention in the HIV acquisition trial was lower in African-Americans compared with Whites. CONCLUSION Strategies to increase WTP and enhanced retention (ER) strategies may help in recruiting and retaining minority participants in actual HIV vaccine trials and other trials of biomedical prevention.
Collapse
|
16
|
Brown JL, Sales JM, DiClemente RJ. Combination HIV prevention interventions: the potential of integrated behavioral and biomedical approaches. Curr HIV/AIDS Rep 2015; 11:363-75. [PMID: 25216985 DOI: 10.1007/s11904-014-0228-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Combination HIV prevention interventions that integrate efficacious behavioral and biomedical strategies offer the potential to reduce new HIV infections. We overview the efficacy data for three biomedical HIV prevention approaches, namely microbicides, pre-exposure prophylaxis (PrEP), and HIV vaccination; review factors associated with differential acceptability and uptake of these methods; and suggest strategies to optimize the effectiveness and dissemination of combination HIV prevention approaches. A narrative review was conducted highlighting key efficacy data for microbicides, PrEP, and an HIV vaccination and summarizing acceptability data for each of the three biomedical HIV prevention approaches. Recommendations for the integration and dissemination of combined behavioral and biomedical HIV prevention approaches are provided. To date, microbicides and an HIV vaccination have demonstrated limited efficacy for the prevention of HIV. However, PrEP has demonstrated efficacy in reducing HIV incident infections. A diverse array of factors influences both hypothetical willingness and actual usage of each biomedical prevention method. Strategies to effectively integrate and evaluate combination HIV prevention interventions are urgently needed.
Collapse
Affiliation(s)
- Jennifer L Brown
- Department of Psychological Sciences, Texas Tech University, MS 2051, Lubbock, TX, 79409-2051, USA,
| | | | | |
Collapse
|
17
|
Dhalla S, Poole G. Socioeconomic status and HIV vaccine preparedness studies in North America. Vaccine 2015; 33:2536-45. [PMID: 25820065 DOI: 10.1016/j.vaccine.2015.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 02/21/2015] [Accepted: 03/11/2015] [Indexed: 11/19/2022]
Abstract
Educational level, employment, and income are key components of socioeconomic status (SES). This article is a systematic review of SES variables in North American countries, and their relationship to willingness to participate (WTP) and retention in a hypothetical preventive phase 3 HIV vaccine trial and in actual HIV vaccine trials. Men who have sex with men (MSM) tended to have higher educational levels, be more employed, and had higher income levels than injection drug users (IDU) and women at heterosexual risk (WAHR). In large part, there was no relationship between educational level and WTP, as well as between educational level and retention. Similarly, there was no relationship between employment and WTP. In WAHR who were African-American, those employed were less likely than others to complete the study at 18 months. The exact occupations of participants analyzed have not been specified, and specification of these occupations may help determine whether enhanced retention (ER) strategies are required.
Collapse
Affiliation(s)
- Shayesta Dhalla
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
| | - Gary Poole
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| |
Collapse
|
18
|
McClarty LM, Lorway RR, Ramanaik S, Wylie J, Becker ML. Factors influencing frontline health service providers' likelihood to recommend a future, preventive HIV vaccine to key populations in Karnataka, south India. Vaccine 2014; 33:656-63. [PMID: 25528520 DOI: 10.1016/j.vaccine.2014.12.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 12/03/2014] [Accepted: 12/05/2014] [Indexed: 11/29/2022]
Abstract
The HIV epidemic in the south Indian state of Karnataka disproportionately burdens key populations of men who have sex with men and female sex workers. Despite having successfully reduced HIV incidence among certain key populations through the use of targeted intervention, India's HIV epidemic remains one of its greatest public health issues. The best long-term strategy for managing the global HIV epidemic might involve a preventive vaccine; however, vaccine availability cannot guarantee its accessibility or acceptability. Vaccine recommendations from frontline health service providers have previously been identified as useful strategies to enhance vaccine uptake among target groups. This study used structured interviews to explore frontline health service providers' self-identified likelihood to recommend a future, preventive HIV vaccine to key populations in Karnataka. A modified social ecological model was then used to categorise factors that might prevent health service providers from recommending an HIV vaccine. Overall, 83% of health service providers reported that they would be very likely to recommend an HIV vaccine to men who have sex with men and female sex workers, while less than one-third of participants identified one or more barrier to vaccine recommendation. Intrapersonal, interpersonal, and structural/political factors were most commonly reported to act as potential barriers to future HIV vaccine recommendation among health service providers in Karnataka. This study adds to the limited body of literature focussing on future HIV vaccine acceptability in low- and middle-income countries and highlights some of the several complexities surrounding vaccine acceptability and uptake among key populations in Karnataka.
Collapse
Affiliation(s)
- Leigh M McClarty
- Centre for Global Public Health, Department of Community Health Sciences, University of Manitoba, R070 Medical Rehabilitation Building, 771 McDermot Avenue, Winnipeg, Manitoba R3E 0T6, Canada.
| | - Robert R Lorway
- Centre for Global Public Health, Department of Community Health Sciences, University of Manitoba, R070 Medical Rehabilitation Building, 771 McDermot Avenue, Winnipeg, Manitoba R3E 0T6, Canada.
| | - Satyanarayana Ramanaik
- Karnataka Health Promotion Trust, IT Park, #1-4, 5th Floor, Rajajinagar Industrial Area, Rajajinagar, Bangalore, 560044, India.
| | - John Wylie
- Department of Medical Microbiology, University of Manitoba, 543 Basic Medical Sciences Building, 745 Bannatyne Avenue, Winnipeg, Manitoba R3E 0J9, Canada; Department of Community Health Sciences, University of Manitoba, S113 Medical Services Building, 750 Bannatyne Avenue, Winnipeg, Manitoba R3E 0W3, Canada.
| | - Marissa L Becker
- Centre for Global Public Health, Department of Community Health Sciences, University of Manitoba, R070 Medical Rehabilitation Building, 771 McDermot Avenue, Winnipeg, Manitoba R3E 0T6, Canada; Department of Community Health Sciences, University of Manitoba, S113 Medical Services Building, 750 Bannatyne Avenue, Winnipeg, Manitoba R3E 0W3, Canada.
| |
Collapse
|
19
|
HIV vaccine acceptability among high-risk drug users in Appalachia: a cross-sectional study. BMC Public Health 2014; 14:537. [PMID: 24885970 PMCID: PMC4065595 DOI: 10.1186/1471-2458-14-537] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 05/23/2014] [Indexed: 12/22/2022] Open
Abstract
Background A vaccine could substantially impact the HIV epidemic, but inadequate uptake is a serious concern. Unfortunately, people who use drugs, particularly those residing in rural communities, have been underrepresented in previous research on HIV vaccine acceptability. This study examined HIV vaccine acceptability among high-risk drug users in a rural community in the United States. Methods Interviewer-administered questionnaires included questions about risk behavior and attitudes toward HIV vaccination from 433 HIV-negative drug users (76% with history of injection) enrolled in a cohort study in Central Appalachia. HIV vaccine acceptability was measured on a 4-point Likert scale. Generalized linear mixed models were used to determine correlates to self-report of being “very likely” to receive a 90% effective HIV vaccine (i.e. “maximum vaccine acceptability”, or MVA). Adjusted odds ratios (AORs) and corresponding 95% confidence intervals (CIs) are reported. Results Most (91%) reported that they would accept a preventive HIV vaccine, but concerns about cost, dosing, transportation constraints, vaccine-induced seropositivity, and confidentiality were expressed. Cash incentives, oral-administration, and peer/partner encouragement were anticipated facilitators of uptake. In multivariate analysis, men were significantly less likely to report MVA (AOR: 0.33, CI: 0.21 – 0.52). MVA was more common among participants who believed that they were susceptible to HIV (AOR: 2.31, CI: 1.28 – 4.07), that an HIV vaccine would benefit them (AOR: 2.80, CI: 1.70 – 4.64), and who had positive experiential attitudes toward HIV vaccination (AOR: 1.85, CI: 1.08 – 3.17). MVA was also more common among participants who believed that others would encourage them to get vaccinated and anticipated that their behavior would be influenced by others' encouragement (AOR: 1.81, 95% 1.09 – 3.01). Conclusions To our knowledge, this study was among the first to explore and provide evidence for feasibility of HIV vaccination in a rural, high-risk population in the United States. This study provides preliminary evidence that gender-specific targeting in vaccine promotion may be necessary to promoting vaccine uptake in this setting, particularly among men. The data also underscore the importance of addressing perceived risks and benefits, social norms, and logistical constraints in efforts to achieve widespread vaccine coverage in this high-risk population.
Collapse
|
20
|
The marginal willingness-to-pay for attributes of a hypothetical HIV vaccine. Vaccine 2013; 31:3712-7. [PMID: 23747452 DOI: 10.1016/j.vaccine.2013.05.089] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 05/09/2013] [Accepted: 05/22/2013] [Indexed: 01/21/2023]
Abstract
This paper estimates the marginal willingness-to-pay for attributes of a hypothetical HIV vaccine using discrete choice modeling. We use primary data from 326 respondents from Bangkok and Chiang Mai, Thailand, in 2008-2009, selected using purposive, venue-based sampling across two strata. Participants completed a structured questionnaire and full rank discrete choice modeling task administered using computer-assisted personal interviewing. The choice experiment was used to rank eight hypothetical HIV vaccine scenarios, with each scenario comprising seven attributes (including cost) each of which had two levels. The data were analyzed in two alternative specifications: (1) best-worst; and (2) full-rank, using logit likelihood functions estimated with custom routines in Gauss matrix programming language. In the full-rank specification, all vaccine attributes are significant predictors of probability of vaccine choice. The biomedical attributes of the hypothetical HIV vaccine (efficacy, absence of VISP, absence of side effects, and duration of effect) are the most important attributes for HIV vaccine choice. On average respondents are more than twice as likely to accept a vaccine with 99% efficacy, than a vaccine with 50% efficacy. This translates to a willingness to pay US$383 more for a high efficacy vaccine compared with the low efficacy vaccine. Knowledge of the relative importance of determinants of HIV vaccine acceptability is important to ensure the success of future vaccination programs. Future acceptability studies of hypothetical HIV vaccines should use more finely grained biomedical attributes, and could also improve the external validity of results by including more levels of the cost attribute.
Collapse
|
21
|
Evangeli M, Kafaar Z, Kagee A, Swartz L, Bullemor-Day P. Does message framing predict willingness to participate in a hypothetical HIV vaccine trial: an application of Prospect Theory. AIDS Care 2012; 25:910-4. [PMID: 23216424 DOI: 10.1080/09540121.2012.748163] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
It is vital that enough participants are willing to participate in clinical trials to test HIV vaccines adequately. It is, therefore, necessary to explore what affects peoples' willingness to participate (WTP) in such trials. Studies have only examined individual factors associated with WTP and not the effect of messages about trial participation on potential participants (e.g., whether losses or gains are emphasized, or whether the outcome is certain or uncertain). This study explores whether the effects of message framing on WTP in a hypothetical HIV vaccine trial are consistent with Prospect Theory. This theory suggests that people are fundamentally risk averse and that (1) under conditions of low risk and high certainty, gain-framed messages will be influential (2) under conditions of high risk and low certainty, loss-framed messages will be influential. This cross-sectional study recruited 283 HIV-negative students from a South African university who were given a questionnaire that contained matched certain gain-framed, certain loss-framed, uncertain gain-framed, and uncertain loss-framed statements based on common barriers and facilitators of WTP. Participants were asked to rate how likely each statement was to result in their participation in a hypothetical preventative HIV vaccine trial. Consistent with Prospect Theory predictions, for certain outcomes, gain-framed messages were more likely to result in WTP than loss-framed messages. Inconsistent with predictions, loss-framed message were not more likely to be related to WTP for uncertain outcomes than gain-framed messages. Older students were less likely to express their WTP across the different message frames. Recruitment for HIV vaccine trials should pay attention to how messages about the trial are presented to potential participants.
Collapse
Affiliation(s)
- Michael Evangeli
- Department of Psychology, Royal Holloway University of London, London, UK.
| | | | | | | | | |
Collapse
|
22
|
Newman PA, Roungprakhon S, Tepjan S, Yim S, Walisser R. A social vaccine? Social and structural contexts of HIV vaccine acceptability among most-at-risk populations in Thailand. Glob Public Health 2012; 7:1009-24. [PMID: 22780324 DOI: 10.1080/17441692.2012.692388] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A safe and efficacious preventive HIV vaccine would be a tremendous asset for low- and middle-income country (LMIC) settings, which bear the greatest global impact of AIDS. Nevertheless, substantial gaps between clinical trial efficacy and real-world effectiveness of already licensed vaccines demonstrate that availability does not guarantee uptake. In order to advance an implementation science of HIV vaccines centred on LMIC settings, we explored sociocultural and structural contexts of HIV vaccine acceptability among most-at-risk populations in Thailand, the site of the largest HIV vaccine trial ever conducted. Cross-cutting challenges for HIV vaccine uptake - social stigma, discrimination in healthcare settings and out-of-pocket vaccine cost - emerged in addition to population-specific barriers and opportunities. A 'social vaccine' describes broad sociocultural and structural interventions - culturally relevant vaccine promotion galvanised by communitarian norms, mitigating anti-gay, anti-injecting drug user and HIV-related stigma, combating discrimination in healthcare, decriminalising adult sex work and injecting drug use and providing vaccine cost subsidies - that create an enabling environment for HIV vaccine uptake among most-at-risk populations. By approaching culturally relevant social and structural interventions as integral mechanisms to the success of new HIV prevention technologies, biomedical advances may be leveraged in renewed opportunities to promote and optimise combination prevention.
Collapse
|
23
|
Newman PA. Integrating social and biomedical science in HIV vaccine research: obstacles, opportunities and ways forward. Expert Rev Vaccines 2012; 11:1-3. [PMID: 22149699 DOI: 10.1586/erv.11.162] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
24
|
Immune to addiction: the ethical dimensions of vaccines against substance abuse. Nat Immunol 2012; 13:521-4. [PMID: 22610239 DOI: 10.1038/ni.2321] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Promising advances have been made in recent years for a unique class of immunotherapies that use vaccination to combat substance-use disorders. Although such vaccines are potentially useful for addictions, they raise a variety of ethical and social questions.
Collapse
|
25
|
Lau CY, Swann EM, Singh S, Kafaar Z, Meissner HI, Stansbury JP. Conceptual framework for behavioral and social science in HIV vaccine clinical research. Vaccine 2011; 29:7794-800. [PMID: 21821083 PMCID: PMC3190058 DOI: 10.1016/j.vaccine.2011.07.108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 07/01/2011] [Accepted: 07/24/2011] [Indexed: 11/18/2022]
Abstract
HIV vaccine clinical research occurs within a context where biomedical science and social issues are interlinked. Previous HIV vaccine research has considered behavioral and social issues, but often treated them as independent of clinical research processes. Systematic attention to the intersection of behavioral and social issues within a defined clinical research framework is needed to address gaps, such as those related to participation in trials, completion of trials, and the overall research experience. Rigorous attention to these issues at project inception can inform trial design and conduct by matching research approaches to the context in which trials are to be conducted. Conducting behavioral and social sciences research concurrent with vaccine clinical research is important because it can help identify potential barriers to trial implementation, as well as ultimate acceptance and dissemination of trial results. We therefore propose a conceptual framework for behavioral and social science in HIV vaccine clinical research and use examples from the behavioral and social science literature to demonstrate how the model can facilitate identification of significant areas meriting additional exploration. Standardized use of the conceptual framework could improve HIV vaccine clinical research efficiency and relevance.
Collapse
Affiliation(s)
- Chuen-Yen Lau
- Medical Officer, Collaborative Clinical Research Branch, Division of Clinical Research, NIAID, NIH, 6700B Rockledge Drive, Rm. 1112, Bethesda, MD. 20892, (301) 496-3947 (office), (301) 435-6739 (fax),
| | - Edith M. Swann
- Medical Officer/Nurse Consultant, Vaccine Clinical Research Branch, VRP/DAIDS/NIAID/NIH/DHHS, 6700B Rockledge Drive, Rm. 5256, Bethesda, MD. 20892, 301-451-2780 (office), 301-402-3684 (fax),
| | - Sagri Singh
- Senior Director - Country & Regional Programmes, International AIDS Vaccine Initiative, 110 Williams Street, 27th Floor, New York, NY 10038-3901, +1-212-328-7480 (office), +1-212-847-1112 (fax),
| | - Zuhayr Kafaar
- Department of Psychology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa, +27 21 808 3447,
| | - Helen I. Meissner
- Senior Advisor, Office of Behavioral and Social Sciences Research, Office of the Director, National Institutes of Health, 31 Center Drive, Building 31/Room B1C19, Bethesda, MD 20892-2027, (301) 594-2105,
| | - James P. Stansbury
- Previous Fellow at NIH/OBSSR, now at FDA/CDER/OND/SEALD, WO Bldg. 22, Room 2433, 10903 New Hampshire Avenue, Silver Spring, MD 20993, (301) 796-7552,
| |
Collapse
|
26
|
Nyblade L, Singh S, Ashburn K, Brady L, Olenja J. "Once I begin to participate, people will run away from me": understanding stigma as a barrier to HIV vaccine research participation in Kenya. Vaccine 2011; 29:8924-8. [PMID: 21964057 DOI: 10.1016/j.vaccine.2011.09.067] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 09/02/2011] [Accepted: 09/14/2011] [Indexed: 10/17/2022]
Abstract
PURPOSE Participation of volunteers in clinical research is essential to the development of effective HIV prevention methods, including an HIV vaccine. This study expands current knowledge of stigma and discrimination related to participation in HIV vaccine research in sub-Saharan Africa by exploring the perception of stigma and discrimination as a barrier to participation in HIV vaccine research in Kenya. METHODS Eighteen focus groups with a total of 133 participants and 82 individual interviews were conducted with a range of respondents at two centers in Nairobi, Kenya: a preventive AIDS vaccine trial center; and a preparatory clinical and epidemiological study center. Respondents included peer leaders, community advisory board members, former and current volunteers in clinical research, study staff, community leaders and community members. Data were analyzed using an iterative coding process. RESULTS Four prominent stigma-related barriers to participation emerged among all respondent groups, across both centers: (1) volunteers are often assumed by family and community members to be HIV positive because of their participation in vaccine research; (2) HIV-related stigma is perceived as pervasive and damaging in the communities where volunteers live, thus they fear consequent stigma if people believe them to be HIV positive; (3) potential volunteers fear being tested for HIV, a prerequisite for participation, because of possible disclosure of HIV status in communities with high perceived HIV-related stigma; and (4) volunteers must carefully manage information about their participation because of misperceptions and assumptions about vaccine research volunteers. CONCLUSIONS HIV-related stigma and discrimination influence people's decisions to join HIV-vaccine related research. Findings underscore a need for integration of stigma-reduction programming into education and outreach activities for volunteers, and the communities in which they live. This is particularly critical for trials recruiting individuals with higher HIV risk, who are often already highly stigmatized.
Collapse
Affiliation(s)
- Laura Nyblade
- Research Triangle Institute International, 805 15th St, NW, Suite 601, Washington, DC 20005, USA.
| | | | | | | | | |
Collapse
|
27
|
Newman PA, Logie C, James L, Charles T, Maxwell J, Salam K, Woodford M. "Speaking the dialect": understanding public discourse in the aftermath of an HIV vaccine trial shutdown. Am J Public Health 2011; 101:1749-58. [PMID: 21778490 PMCID: PMC3154228 DOI: 10.2105/ajph.2011.300208] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2011] [Indexed: 11/04/2022]
Abstract
OBJECTIVES We investigated how persons from key populations at higher risk of HIV exposure interpreted the process and outcomes of the Step Study HIV-1 vaccine trial, which was terminated early, and implications for willingness to participate in and community support for HIV vaccine research. METHODS We used qualitative methods and a community-based approach in 9 focus groups (n = 72) among ethnically and sexually diverse populations and 6 semistructured key informant interviews in Ontario, Canada, in 2007 to 2008. RESULTS Participants construed social meaning from complex clinical and biomedical phenomena. Social representations and mental models emerged in fears of vaccine-induced infection, conceptualizations of unfair recruitment practices and increased risk behaviors among trial participants, and questioning of informed consent. Narratives of altruism and the common good demonstrated support for future trials. CONCLUSIONS Public discourse on HIV vaccine trials is a productive means of interpreting complex clinical trial processes and outcomes in the context of existing beliefs and experiences regarding HIV vaccines, medical research, and historical disenfranchisement. Strategic engagement with social representations and mental models may promote meaningful community involvement in biomedical HIV prevention research.
Collapse
Affiliation(s)
- Peter A Newman
- Factor-Inwentash Faculty of Social Work, University of Toronto, ON, Canada.
| | | | | | | | | | | | | |
Collapse
|
28
|
Barriers of enrolment in HIV vaccine trials: a review of HIV vaccine preparedness studies. Vaccine 2011; 29:5850-9. [PMID: 21740947 DOI: 10.1016/j.vaccine.2011.06.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 05/31/2011] [Accepted: 06/14/2011] [Indexed: 11/22/2022]
Abstract
Barriers to participation in an HIV vaccine trial have been examined in many HIV vaccine preparedness studies (VPS). These barriers can be understood in terms of the locus of the barrier (personal vs. social) and the nature of the barrier (risk vs. cost). Another type of barrier is perceived misconceptions. In this systematic review, we categorize barriers, and compare these barriers between the Organization for Economic Co-operation and Development (OECD) countries and the non-OECD countries. In the OECD countries, we retrieved 25 studies reporting personal risks (PR), 9 studies reporting social risks (SR), 10 studies reporting personal costs (PC), and 16 studies reporting misconceptions. In the non-OECD countries, we retrieved 27 studies reporting PR, 19 studies reporting SR, 18 studies reporting PC, 1 study reporting social costs (SC), and 13 studies reporting misconceptions. Important PR were "adverse effects" and "vaccine-induced seropositivity", "distrust of institutions", and "temptation to have unsafe sex" in men who have sex with men (MSM). "Discrimination" was a common SR. "Time commitment" was an important PC, and "family commitments" were a SC in one non-OECD country. "HIV infection from the vaccine" was a common misconception. Both the OECD and the non-OECD countries have similar barriers, and people's decisions to participate in a clinical trial involve multiple barriers. However, these barriers apply to hypothetical HIV vaccine trials, and barriers for actual vaccine trials need further assessment.
Collapse
|
29
|
Newman PA, Yim S, Daley A, Walisser R, Halpenny R, Cunningham W, Loutfy M. "Once Bitten, Twice Shy": participant perspectives in the aftermath of an early HIV vaccine trial termination. Vaccine 2011; 29:451-8. [PMID: 21075163 PMCID: PMC3175433 DOI: 10.1016/j.vaccine.2010.10.076] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 10/22/2010] [Accepted: 10/29/2010] [Indexed: 11/23/2022]
Abstract
The Step Study phase IIb HIV-1 vaccine trial was terminated early due to futility; subsequent analyses revealed increased susceptibility to HIV infection among a subset of test vaccine recipients. We conducted a mixed methods investigation, including a brief, self-administered baseline questionnaire and in-depth, semi-structured, 1-h interviews after unblinding, to explore experiences and perspectives among trial participants and key informants. Interviews were digitally recorded, transcribed, and analyzed using NVivo and thematic techniques. Forty-eight trial participants (46 gay/bisexual men) completed baseline surveys; 15 (14 gay/bisexual men) engaged in post-trial interviews. Participants indicated surprise and disappointment about the early trial termination and unexpected risks. Some articulated understanding the uncertainties of clinical trials, steadfast support and willingness to participate in the future; others reported greater risks than they deemed acceptable and unlikelihood of volunteering again. A few indicated mistrust of trial sponsors and ethics. Participants' most profound criticism was not about unexpected results, but perceived delays in unblinding and gaps in post-trial dissemination of information. Future HIV vaccine trials may benefit from increased emphasis on: (1) communication mechanisms among participants, investigators and trial sponsors, and (2) post-trial dissemination of information and psychosocial support.
Collapse
Affiliation(s)
- P A Newman
- University of Toronto, Factor-Inwentash Faculty of Social Work, Centre for Applied Social Research, 246 Bloor Street West, Toronto, Ontario, Canada.
| | | | | | | | | | | | | |
Collapse
|
30
|
Golub SA, Operario D, Gorbach PM. Pre-exposure prophylaxis state of the science: empirical analogies for research and implementation. Curr HIV/AIDS Rep 2010; 7:201-9. [PMID: 20809218 PMCID: PMC2938422 DOI: 10.1007/s11904-010-0057-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pre-exposure prophylaxis (PrEP) has the potential to become a powerful biomedical approach to HIV prevention; however, its success depends on behavioral and social factors that may determine its appropriate use. This article is designed to facilitate interdisciplinary empirical analogies relevant to PrEP implementation, reviewing behavioral and social science findings that may provide lessons critical to the success of PrEP as a biomedical-behavioral prevention strategy. As we prepare for the dissemination of new biomedical approaches to HIV prevention, integrating the state of the science across disciplines may result in innovative strategies for implementation that can enhance their success.
Collapse
Affiliation(s)
- Sarit A. Golub
- Department of Psychology, Hunter College of the City University of New York, Center for HIV Educational Studies and Training, 695 Park Avenue, New York, NY 10065 USA
| | - Don Operario
- Program in Public Health, Department of Behavioral and Social Sciences, Brown University, 121 South Main Street, Providence, RI 02903 USA
| | - Pamina M. Gorbach
- Behavioral Epidemiology Research Group, Department of Epidemiology, University of California, Los Angeles, Box 957353, CHS 71-235, 10880 Wilshire Boulevard, Suite 1800, Los Angeles, CA 90095-7353 USA
| |
Collapse
|
31
|
Abstract
This research used open-ended and true-false questions to assess the preparedness of 96 ethnically diverse, economically and socially marginalized adult street drug users to consent to participate in HIV vaccine trials (HVT). Specific areas of consent vulnerability included misconceptions about: (1) the recuperative value and risk of vaccines in general; (2) the presence of the HIV virus within the vaccine and the possibility of contracting or transmitting HIV as a consequence of participation; (3) inclusion criteria and experimental blinds; and (4) distrust in the medical and research establishments. A brief HVT lesson administered to 30 participants was effective in correcting specific HVT knowledge misperceptions and increasing certain, but not all areas of HVT trust. Assessment of post-lesson responses to ethics-relevant questions provides information on respondents' attitudes toward AIDS safe behavior, research risks and benefits, monetary compensation, and willingness to participate. Implications for enhancing informed consent for HVT involving active drug users are discussed.
Collapse
Affiliation(s)
- Celia B Fisher
- Center for Ethics Education and Department of Psychology, Fordham University, Dealy Hall, 441 East Fordham Road, Bronx, NY 10458, USA.
| |
Collapse
|
32
|
Engaging members of African American and Latino communities in preventive HIV vaccine trials. J Acquir Immune Defic Syndr 2009; 51:194-201. [PMID: 19504752 DOI: 10.1097/qai.0b013e3181990605] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND African Americans (AAs) and Latinos in United States bear a disproportionate burden of HIV infection, yet remain underrepresented in HIV vaccine trials. The success in engaging and enrolling AAs and Latinos in phase 1 and phase 2 vaccine trials at 2 research sites in New York City is described. METHODS A retrospective analysis of 1683 HIV-uninfected individuals who completed > or = 1 stage of the screening process from 2002 to 2006. Data on sociodemographic, behavioral characteristics, medical eligibility, and enrollment in National Institutes of Health-sponsored vaccine trials were collected. RESULTS 7.5% of screening participants completed enrollment; 33% were AAs, 24% Latinos. The proportion of enrollees did not differ significantly by race/ethnicity. Low-risk vs. high-risk AAs (49% vs. 23%, P = 0.006) and high-risk vs. low-risk Latinos (31% vs. 13%, P = 0.006) were more likely to enroll. Among them, loss to follow-up was the most common reason for not completing screening. In multivariate analysis, older participants, high-risk men, and high-risk women were more likely to complete enrollment. CONCLUSIONS Once potential minority participants are identified and engaged in the screening process, it is possible to enroll them at rates comparable to white participants. Experience at these sites suggests that the challenge in achieving high rates of minority participation is in increasing the initial pool of candidates prescreening for HIV vaccine studies.
Collapse
|
33
|
Lau CY, Stansbury JP, Gust DA, Kafaar Z. Social and behavioral science in HIV vaccine trials: a gap assessment of the literature. Expert Rev Vaccines 2009; 8:179-90. [PMID: 19196198 DOI: 10.1586/14760584.8.2.179] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Social and behavioral science research is integral to the conduct of HIV vaccine trials, especially because the vaccine targets an infection laden with sensitive human issues. Although social and behavioral sciences have played a larger role in HIV vaccine clinical trials than other vaccine clinical trials to date, this role should be expanded. Fortunately, related publications, conference coverage and research proposals are on the rise; community engagement is receiving more attention during the earlier stages of product development; and collaboration between HIV vaccine scientists and social and behavioral scientists is being fostered. Greater attention to social and behavioral science issues could not only facilitate accrual, but also improve research efficiency and relevance. In this review, gaps in the literature on social and behavioral science issues in HIV vaccine clinical research, including barriers and facilitators to trial participation, enhancing feasibility of trial success, health systems, policy and monitoring social and behavioral issues, are identified and directions are suggested for filling those gaps. Development of a safe, efficacious and acceptable HIV vaccine will be nurtured by addressing the gaps through interdisciplinary collaborations.
Collapse
Affiliation(s)
- Chuen-Yen Lau
- Vaccine Clinical Research Branch, Vaccine Research Program, National Institute of Allergy and Infectious Disease, National Institutes of Health, 6700 B Rockledge, Room 5126, Bethesda, MD 20817, USA.
| | | | | | | |
Collapse
|