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El-Sahn M, Elliott R, El-Sahn M, Lucas J, Wood Santos T. End-user research into understanding perceptions of and reactions to a microarray patch (MAP) for contraception among women in Ghana, Kenya and Uganda. FRONTIERS IN REPRODUCTIVE HEALTH 2024; 6:1351692. [PMID: 38515793 PMCID: PMC10954799 DOI: 10.3389/frph.2024.1351692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/16/2024] [Indexed: 03/23/2024] Open
Abstract
Introduction Many organizations are developing new contraceptive products and approaches that promote self-care including a microarray patch (MAP) that has the potential for self-administration with appropriate training. We studied women's perceptions of the MAP technology with the primary goal of providing feedback on product attributes to inform early technical design decisions regarding various MAP contraceptive products in development by MAP developers. Methods Our study consisted of a qualitative phase with in-person In-Depth Interviews (IDIs) with a total of 60 women of reproductive age (WRA) and quantitative surveys, via face-to-face computer-assisted interviews of a total of 927 women in Ghana, Kenya and Uganda. Women's perceptions on 12 attributes of the MAP were assessed through written descriptions, a profile, and visual stimuli such as graphics and images. Results Overall, the most widely preferred attribute set included: a hand-applied MAP, utilizing one circular patch, with a sticky backing, no larger than 2 cm diameter in size, applied by self, to the arm, offering sensory feedback (clicking sound and/or color change signals) to confirm enough pressure, successful application and removal, lasting 6 months with up to 12 months return to natural state of fertility. There is space to allow for variation in MAP designs (including the use of an applicator or provider administered MAP) if the design promotes and reflects the needs and expectations of users and providers. Discussion The contraceptive MAP had a high and broad level of appeal amongst all groups of women who participated in the study and has a strong value proposition around important contraceptive needs such as ease of use, convenience, and discretion.
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Tolley EE, Hanif H, Thurman A, Brache V, Doncel GF. Preferred product attributes of a multipurpose vaginal ring: Findings from a phase 1 trial. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1148134. [PMID: 37064825 PMCID: PMC10097978 DOI: 10.3389/frph.2023.1148134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/09/2023] [Indexed: 04/01/2023] Open
Abstract
IntroductionMost women face multiple and co-occurring risks from unwanted pregnancy, human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs) at some point during their lifetime. While a range of contraceptive methods exist and options for HIV prevention are increasing, to date, only male and female condoms provide multipurpose protection from both pregnancy and disease.MethodsFrom September 2017 to December 2018, 60 women from the United States and the Dominican Republic, randomized 1:1 to continuous or interrupted use and 4:1 to active vs. placebo ring, participated in a Phase I trial to assess the safety and tolerability of a three-month multipurpose intravaginal ring (IVR) containing the antiviral tenofovir and the contraceptive levonorgestrel. This study examines survey responses from all participants and qualitative data from a subset of 17 women to assess acceptability of and preferences for IVR characteristics.ResultsOverall, women liked the concept of a multipurpose IVR and found it easy to insert and remove. Initial concerns about the size or thickness of the ring generally disappeared with use experience. Women weighed trade-offs between the ease of continuous use for a longer duration against concerns about hygiene and discoloration of the ring when left in place during menses. Whether randomized to continuous or interrupted use, most women found ring attributes (size, thickness, flexibility) very acceptable. They provided recommendations via survey and qualitative interviews for ring modifications that would further increase acceptability. Insights into women's use experiences also suggest the need for clear counseling messages and introduction strategies that can facilitate women's choice and use of prevention methods.DiscussionStudy findings suggest that a multipurpose IVR would make a valuable contribution to women's sexual and reproductive health options, and that both continuous and interrupted use strategies may be preferred.
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Affiliation(s)
- Elizabeth E. Tolley
- FHI 360, Global Health and Population Research, Durham, NC, United States
- Correspondence: Elizabeth E. Tolley
| | - Homaira Hanif
- CONRAD and Eastern Virginia Medical School, Norfolk, VA, United States
| | - Andrea Thurman
- CONRAD and Eastern Virginia Medical School, Norfolk, VA, United States
| | | | - Gustavo F. Doncel
- CONRAD and Eastern Virginia Medical School, Norfolk, VA, United States
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Nkomo S, Makoni W, Shapley-Quinn MK, Luecke E, Mbatsane E, Manenzhe K, Ahmed K, Johnson LM, Mahaka I, van der Straten A. Prospective acceptability of a multipurpose technology (MPT) implant in preclinical development to prevent HIV and unplanned pregnancy: Qualitative insights from women end users and health care providers in South Africa and Zimbabwe. PLoS One 2023; 18:e0285711. [PMID: 37195918 DOI: 10.1371/journal.pone.0285711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/01/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Given the high rates of both HIV and unintended pregnancies in sub-Saharan Africa, the SCHIELD program aims to develop a multipurpose technology implant for HIV and pregnancy prevention. An end-user evaluation was undertaken with young women and health care providers to assess preferences for modifiable implant attributes to improve future adoption and rollout. METHODS Focus group discussions were conducted with potential women end users, and health care providers experienced in implant insertion or removal participated in in-depth interviews. All participants were recruited from Harare, Zimbabwe, or Soshanguve, South Africa. The purposively stratified sampled women were either implant experienced or implant naïve and were categorized into three groups: nulliparous, postpartum, or engaged in transactional sex. Topics covered included duration (six months to three years), biodegradability, removability, and independent rod retrievability (per indication). Data were analyzed using Dedoose software and summarized into emerging themes. RESULTS Participants identified three key areas that could facilitate rollout, uptake, and adherence of an implant for HIV and pregnancy prevention. First, discreetness was the most salient topic and was associated with implant characteristics such as anatomical location, flexibility, and biodegradability. Second, the ability to independently retrieve the HIV or pregnancy prevention component was preferred, as life circumstances may change and was favored by all participants, except for young women in Soshanguve. Third, there is a need for proper counseling, sensitization, provider training, and health campaigns to facilitate rollout of a 2-in-1 implant. CONCLUSIONS A 2-in-1 implant was seen as highly desirable by most young women and health care providers. Participants discussed potential concerns and barriers to uptake of a biodegradable implant with dual HIV prevention and contraceptive properties, identifying key implant attributes that product developers can modify while still in preclinical stages.
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Affiliation(s)
| | | | - Mary Kate Shapley-Quinn
- Women's Global Health Imperative, RTI International, San Jose, California, United States of America
| | - Ellen Luecke
- Women's Global Health Imperative, RTI International, San Jose, California, United States of America
| | | | | | - Khatija Ahmed
- Setshaba Research Centre, Soshanguve, South Africa
- Faculty of Health Sciences, Department of Medical Microbiology, University of Pretoria, Pretoria, South Africa
| | - Leah M Johnson
- RTI International, Research Triangle Park, North Carolina, United States of America
| | | | - Ariane van der Straten
- ASTRA Consulting, Kensington, California, United States of America
- Center for AIDS Prevention Studies, University of California, San Francisco, San Francisco, California, United States of America
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Scorgie F, Hawley I, Fairlie L, Pahad S, Mathebula F, Mohuba R, London SJ, Cottrell ML, Johnson LM, Montgomery ET. Acceptability of Implants for HIV Treatment in Young Children: Perspectives of Health Care Providers in Johannesburg, South Africa. AIDS Patient Care STDS 2022; 36:389-395. [PMID: 36286579 PMCID: PMC9595609 DOI: 10.1089/apc.2022.0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
In South Africa, less than half of children receiving antiretroviral therapy are virally suppressed. Adherence challenges include poor palatability of drugs and high pill burden. Subcutaneous implants offer a long-acting alternative to daily oral dosing regimens, which may improve outcomes in children living with HIV (CLWH). Qualitative in-depth interviews were conducted with 24 health care providers (HCPs) in Johannesburg, South Africa. Interviews were audio-recorded and transcribed. Data were coded and analyzed using NVivo 12 software and a Grounded Theory approach. Most HCPs welcomed an implant option for CLWH. Perceived benefits included fewer clinic visits, improved adherence, and "normalization" of the lives of CLWH. Concerns included painful insertion and removal, the potential for stigmatization, and caregivers' likely rejection of biodegradable implants. A single, small, non-transparent rod with some flexibility was preferred by most participants. HCP training and early outreach to mitigate potential misinformation about implants and caregivers' fears about biodegradable implants were emphasized. Further engagement with caregivers of CLWH is required and ongoing.
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Affiliation(s)
- Fiona Scorgie
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Imogen Hawley
- Women's Global Health Imperative, RTI International, Berkeley, California, USA
| | - Lee Fairlie
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Shenaaz Pahad
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Florence Mathebula
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Rebone Mohuba
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sarah-Jane London
- Wits RHI, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Leah M. Johnson
- RTI International, Research Triangle Park, North Carolina, USA
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Bernard C, Jakait B, Fadel WF, Mocello AR, Onono MA, Bukusi EA, Wools-Kaloustian KK, Cohen CR, Patel RC. Preferences for Multipurpose Technology and Non-oral Methods of Antiretroviral Therapy Among Women Living With HIV in Western Kenya: A Survey Study. Front Glob Womens Health 2022; 3:869623. [PMID: 35663925 PMCID: PMC9160913 DOI: 10.3389/fgwh.2022.869623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction Understanding interests in and preferences for multipurpose technology (MPT) for the co-administration of contraception and antiretroviral therapy (ART) and alternative, non-oral ART methods among women living with HIV (WLHIV) is vital to successful implementation of future treatment options, such as long-acting injectable ART. Methods Between May 2016 and March 2017 we conducted a cross-sectional telephone survey of 1,132 WLHIV of reproductive potential with prior experience using intermediate- or long-acting contraceptive methods in western Kenya. We present descriptive statistics and multinomial logistic regression to evaluate predictors of interest in specific MPT and non-oral ART methods. Results Two-thirds (67%) reported interest in MPT, with the most common reason for interest being ease of using a single medication for both purposes of HIV treatment and pregnancy prevention (26%). Main reasons for lack of interest in MPT were need to stop/not use contraception while continuing ART (21%) and risk of side effects (16%). Important characteristics of MPT were effectiveness for pregnancy prevention (26%) and HIV treatment (24%) and less than daily dosing (19%). Important characteristics of non-oral ART methods were less than daily dosing (47%), saving time accessing ART (16%), and effectiveness of HIV treatment (15%). The leading preferred methods for both MPT and non-oral ART were injectables (50 and 54%) and implants (32 and 31%). Prior use of a contraceptive implant or injectable predicted interest in similar methods for both MPT and non-oral ART methods, while this relationship did not appear to vary between younger vs. older WLHIV. Discussion Most WLHIV in western Kenya are interested in MPT for HIV treatment and contraception. Prior exposure to contraceptive implants or injectables appears to predict interest in similar methods of MPT and non-oral ART. Developers of MPT and non-oral ART methods should strongly consider WLHIV's preferences, including their changing reproductive desires.
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Affiliation(s)
- Caitlin Bernard
- Department of Obstetrics & Gynecology, Division of Family Planning, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Beatrice Jakait
- Moi Teaching & Referral Hospital/Moi University & Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
| | - William F. Fadel
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - A. Rain Mocello
- Bixby Center for Global Reproductive Health, Department of Obstetrics, Gynecology & Reproductive Health, University of California San Francisco, CA, United States
| | - Maricianah A. Onono
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Elizabeth A. Bukusi
- Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Craig R. Cohen
- Bixby Center for Global Reproductive Health, Department of Obstetrics, Gynecology & Reproductive Health, University of California San Francisco, CA, United States
| | - Rena C. Patel
- Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington, Seattle, WA, United States
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Li L, Gatto GJ, Brand RM, Krovi SA, Cottrell ML, Norton C, van der Straten A, Johnson LM. Long-acting biodegradable implant for sustained delivery of antiretrovirals (ARVs) and hormones. J Control Release 2021; 340:188-199. [PMID: 34678316 DOI: 10.1016/j.jconrel.2021.10.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 10/05/2021] [Accepted: 10/16/2021] [Indexed: 12/14/2022]
Abstract
Women worldwide confront two major reproductive health challenges: the need for contraception and protection from sexually transmitted infections, including Human Immunodeficiency Virus (HIV). Multipurpose Prevention Technologies (MPTs) that simultaneously prevent unintended pregnancy and HIV could address these challenges with a single product. Here, we developed a long-acting (LA) subcutaneously administered and biodegradable implant system that provides sustained delivery of contraceptive and antiretroviral (ARV) with zero-order release kinetics. The MPT system involves two implants comprising an extruded tube of a biodegradable polymer, poly(ε-caprolactone) (PCL). Each implant is filled with a formulation of progestin [levonorgestrel (LNG) or etonogestrel (ENG)], or a formulation of a potent ARV [tenofovir alafenamide (TAF), or 4'-Ethynyl-2-fluoro-2'-deoxyadenosine (EFdA)]. We demonstrated sustained in-vitro release of LNG, ENG, and EFdA from the implant system for 13-17 months, while maintaining high stability of the drugs (>99%) within the implant reservoirs. We further elucidated the controlled release mechanism of the implant and leveraged several tunable parameters (e.g., type and quantity of the excipient, PCL properties, and implant wall thickness) to tailor the release kinetics and enhance the mechanical integrity of the MPT implant. The optimized MPT showed sustained in-vitro release of ENG and EFdA over 1 year while maintaining a high level of formulation stability and structural integrity. The MPT implant system was further evaluated in a preclinical study using a rodent model and demonstrated sustained release of EFdA (6 months) and ENG (12 months) with high stability of the drug formulation (>95%). This manuscript supports the continued advancement of LA delivery systems for MPTs.
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Affiliation(s)
- Linying Li
- Biomedical Technologies Group, RTI International, Research Triangle Park, NC 27709, USA
| | - Gregory J Gatto
- Global Public Health Impact Center, RTI International, Research Triangle Park, NC 27709, USA
| | - Rhonda M Brand
- Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Sai Archana Krovi
- Biomedical Technologies Group, RTI International, Research Triangle Park, NC 27709, USA
| | - Mackenzie L Cottrell
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Chasity Norton
- Biomedical Technologies Group, RTI International, Research Triangle Park, NC 27709, USA
| | - Ariane van der Straten
- Center for AIDS Prevention Studies, Dept of Medicine, University of California San Francisco, San Francisco, CA 94104, USA; ASTRA consulting, Kensington, CA 94708, USA
| | - Leah M Johnson
- Biomedical Technologies Group, RTI International, Research Triangle Park, NC 27709, USA.
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North BB, Weitzel MB, Waller DP, Birch WX, Feathergill KA, Birch LA, De Jonge CJ, Prins GS. Evaluation of the novel vaginal contraceptive agent PPCM in preclinical studies using sperm hyaluronan binding and acrosome status assays. Andrology 2021; 10:367-376. [PMID: 34542939 PMCID: PMC8760152 DOI: 10.1111/andr.13110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/07/2021] [Accepted: 09/15/2021] [Indexed: 12/22/2022]
Abstract
Background Polyphenylene carboxymethylene (PPCM) sodium salt is a promising multipurpose technology for prevention of both sexually transmitted infections (STIs) and pregnancy. In preclinical studies, PPCM has demonstrated significant (1) antimicrobial activity against several important viral and bacterial pathogens and (2) contraceptive activity associated with premature acrosome loss. Objective To further evaluate a vaginal antimicrobial compound as a contraceptive agent in preclinical studies utilizing a repurposed hyaluronan binding assay (HBA). Materials and methods Semen samples containing either neat semen or washed spermatozoa were treated with increasing concentrations of PPCM or calcium ionophore A23187 (positive control). Sperm inactivation was measured by two methods: (1) double acrosome staining (AS), and (2) a hyaluronan binding assay (HBA®). Percentage of inactivated sperm was compared between untreated control sperm and those treated with PPCM or A23187. Results PPCM had a significant (p < 0.05) and dose‐dependent effect on sperm inactivation in both assays, with HBA detecting a higher proportion of inactivated sperm than AS. PPCM did not affect sperm motility and exhibited equivalent responses in the neat and washed samples. Discussion Both HBA and AS confirmed that spermatozoa were rapidly inactivated at PPCM concentrations likely present in the vagina under actual use conditions and in a time‐frame comparable to in vivo migration of spermatozoa out of seminal plasma into cervical mucus. Conclusion PPCM vaginal gel may provide contraceptive protection as well as help with STI prevention. HBA may be a sensitive and much needed biomarker for sperm activity in future contraceptive development.
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Affiliation(s)
| | | | - Donald P Waller
- Yaso Therapeutics Inc., Frisco, Texas, USA.,College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - William X Birch
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | | | - Lynn A Birch
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Christopher J De Jonge
- Department of Urology, University of Minnesota Medical Center, Minneapolis, Minnesota, USA
| | - Gail S Prins
- Department of Urology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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Krovi SA, Johnson LM, Luecke E, Achilles SL, van der Straten A. Advances in long-acting injectables, implants, and vaginal rings for contraception and HIV prevention. Adv Drug Deliv Rev 2021; 176:113849. [PMID: 34186143 DOI: 10.1016/j.addr.2021.113849] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/15/2021] [Accepted: 06/22/2021] [Indexed: 12/22/2022]
Abstract
Worldwide, women face compounding reproductive health risks, including human immunodeficiency virus (HIV), sexually-transmitted infections (STIs), and unintended pregnancy. Multipurpose prevention technologies (MPTs) offer combined protection against these overlapping risks in singular prevention products that offer potential for simplified use, lower burden, higher acceptability, and increased public health benefits. Over the past decade, substantial progress has been made in development of extended-release MPTs, which have further potential to grant sexual and reproductive health autonomy to women globally and to offer choice for women to accommodate varying needs during their reproductive lives. Here, we highlight the advances made in injectable, implant, and ring delivery forms, and the importance of incorporating end-user preferences early in the research and development of these products.
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Affiliation(s)
| | | | - Ellen Luecke
- Women's Global Health Imperative, RTI International, Berkeley, CA, USA
| | - Sharon L Achilles
- University of Pittsburgh, School of Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, Pittsburgh, PA, USA; Magee-Womens Research Institute, Pittsburgh, PA, USA
| | - Ariane van der Straten
- Center for AIDS Prevention Studies, Dept of Medicine, University of California San Francisco, San Francisco, CA, USA; ASTRA Consulting, Kensington, CA, USA
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Begg L, Brodsky R, Friedland B, Mathur S, Sailer J, Creasy G. Estimating the market size for a dual prevention pill: adding contraception to pre-exposure prophylaxis (PrEP) to increase uptake. BMJ SEXUAL & REPRODUCTIVE HEALTH 2021; 47:166-172. [PMID: 32737137 PMCID: PMC8292580 DOI: 10.1136/bmjsrh-2020-200662] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Uptake of oral pre-exposure prophylaxis (PrEP) remains low. The objective of this analysis was to estimate the potential market size in priority sub-Saharan African countries for a 28-day dual prevention pill (DPP) regimen containing the active pharmaceutical ingredients in oral PrEP and oral contraceptive pills (OCPs) for the prevention of HIV and unintended pregnancy. METHODS We selected 15 countries in sub-Saharan Africa for analysis. Population estimates were based on United Nations Population Division data from 2017. Low, medium and high rates (range 0.25% to 25%) of estimated conversion from current contraceptive method to the DPP were applied by country based on HIV prevalence (≥10% vs <10%), current contraceptive method (OCP, condom or unmet need for contraception) and age group (15-24 or 25-49 years). RESULTS In these 15 countries, between 250 000 and 1.25 million women could switch from their current contraceptive method to the DPP. Given that current PrEP use in the 15 countries combined is estimated to be 113 250 (women and men), the most conservative market size estimate would more than double the number of women currently using PrEP. CONCLUSIONS By leveraging the existing market for OCPs and assuming modest conversion from condom users and women with an unmet need for contraception, the DPP could lead to a 2- to 10-fold increase in PrEP usage in these 15 sub-Saharan African countries, expanding the broader public health benefit of this proven HIV prevention strategy.
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Affiliation(s)
- Lorna Begg
- Center for Biomedical Research, Population Council, New York, New York, USA
| | - Rebecca Brodsky
- Center for Biomedical Research, Population Council, New York, New York, USA
| | | | - Sanyukta Mathur
- HIV and AIDS, Population Council, Washington, District of Columbia, USA
| | - Jim Sailer
- Center for Biomedical Research, Population Council, New York, New York, USA
| | - George Creasy
- Center for Biomedical Research, Population Council, New York, New York, USA
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10
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Pickering D, Blaszczynski A. Should I Stay or Should I Go? A Comparative Exploratory Analysis of Individuals Electing to Continue or Discontinue Self-Exclusion from Land-Based Gambling Venues. Int J Ment Health Addict 2021. [DOI: 10.1007/s11469-020-00435-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Agot K, Lutnick A, Shapley-Quinn MK, Ahmed K, Okello T, van der Straten A. "I felt like a TRIO champion": end-user perspectives on their role as co-designers of multi-purpose technologies. Gates Open Res 2020; 4:163. [PMID: 33870103 PMCID: PMC8028846 DOI: 10.12688/gatesopenres.13182.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2020] [Indexed: 11/24/2022] Open
Abstract
Background: The likelihood that research will be relevant to and accepted by end-users and their communities is enhanced when the perspectives of both the "researchers" and the "researched" are considered. The Tablets, Ring, Injections as Options (TRIO) Study, conducted with young women in Kenya and South Africa, assessed the acceptability and preferences of three placebo-only multi-purpose technology (MPT) forms for prevention of HIV and unintended pregnancy. The objective of this analysis was to assess whether, and if so how, the women participating in the TRIO Study perceived themselves as co-designers of the three MPT products. Methods: We conducted 55 in-depth interviews, 6 focus group discussions, and 5 dissemination workshops with TRIO Study participants. Woven throughout these activities were questions and opportunities for participants to reflect on their role in the study, and to what extent they identified with their role as a co-designer. Qualitative data from these activities were analyzed thematically. Results: The analysis revealed four key themes about what resulted in the women's views as co-designers: altruism, respectful treatment, agency, and reciprocity. The women were aware of their role in determining what end-users would and would not prefer and were motivated by a desire to help themselves and others. They recognized their role as co-designers and cited being treated well by study staff, being given a chance to make choices during the study period, and being recognized as equal partners of the researchers as the main reasons. Conclusions: If prevention products are going to be successfully developed, end-users and researchers must work hand in hand. Engaging participants meaningfully as co-designers in product development research can be a powerful tool in the effort to ensure new prevention products brought to market are acceptable to the population of interest.
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Affiliation(s)
- Kawango Agot
- Impact Research and Development Organization, Kisumu, Kenya
| | - Alexandra Lutnick
- Behavioral and Urban Health Program, RTI International, San Francisco, California, USA
| | | | - Khatija Ahmed
- Setshaba Research Centre, Soshanguve, Gauteng, South Africa
| | - Timothy Okello
- Impact Research and Development Organization, Kisumu, Kenya
| | - Ariane van der Straten
- Women's Global Health Imperative, RTI International, Berkeley, California, USA
- Department of Medicine, Center for AIDS Prevention Studies, UCSF, San Francisco, California, USA
| | - The TRIO Study Team
- Impact Research and Development Organization, Kisumu, Kenya
- Behavioral and Urban Health Program, RTI International, San Francisco, California, USA
- Women's Global Health Imperative, RTI International, Berkeley, California, USA
- Setshaba Research Centre, Soshanguve, Gauteng, South Africa
- Department of Medicine, Center for AIDS Prevention Studies, UCSF, San Francisco, California, USA
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12
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Fernandes T, Baxi K, Sawarkar S, Sarmento B, das Neves J. Vaginal multipurpose prevention technologies: promising approaches for enhancing women's sexual and reproductive health. Expert Opin Drug Deliv 2020; 17:379-393. [PMID: 32036727 DOI: 10.1080/17425247.2020.1728251] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Introduction: Multipurpose prevention technologies (MPTs) have the potential to avert multiple concomitant sexual and reproductive health issues in women such as sexually transmitted infections and unintended pregnancy. MPTs incorporate one or more active pharmaceutical ingredients in a single product, which adds more convenience for users and may promote increased adherence. Various vaginal dosage forms/delivery systems have been studied for designing MPTs. However, several challenges remain that are mainly related to requirements of individual drugs or intended multiple applications.Areas covered: This review focuses on the emerging need and development of vaginal MPTs. It illustrates numerous examples that are currently in the preclinical and clinical development pipeline, highlighting the concept behind vaginal MPTs. The article also highlights the challenges associated with formulation design and development, including regulatory issues that need to be addressed.Expert opinion: Vaginal MPTs present great potential to empower women with novel, efficient, and safe products for protection against sexually transmitted infections and unintended pregnancy. However, several technological issues and regulatory gaps still need to be addressed in order to meet real-world needs.
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Affiliation(s)
- Trinette Fernandes
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai,India
| | - Krishna Baxi
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai,India
| | - Sujata Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai,India
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal
| | - José das Neves
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal
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13
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Young Women's Stated Preferences for Biomedical HIV Prevention: Results of a Discrete Choice Experiment in Kenya and South Africa. J Acquir Immune Defic Syndr 2019; 80:394-403. [PMID: 30633040 PMCID: PMC6410963 DOI: 10.1097/qai.0000000000001945] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Supplemental Digital Content is Available in the Text. Background: Integrating end-user perspectives into the design of new biomedical HIV prevention products is recognized as vital to informing the product development pipeline. Setting: Kisumu, Kenya; and Soshanguve, South Africa. Methods: We conducted a discrete choice experiment survey with 536 women aged 18–30 years to assess preferences for hypothetical HIV prevention products characterized by the attributes of efficacy, pregnancy prevention, delivery form, dosing frequency, and side effects. Participants included product-experienced women from Tablet, Ring, Injection as Options TRIO, a cross-over clinical study evaluating 3 placebo delivery forms (oral tablets, vaginal rings, and injections), and a product-naive sample recruited from the same communities. Analyses used random parameters logit and latent class models. Results: HIV prevention efficacy was a strong determinant of stated choice overall; however, in South Africa, delivery form was just as important, with an injection every 2–3 months most preferred and a daily oral tablet least preferred. In Kenya, product-experienced women preferred monthly injections and least preferred a monthly ring. Respondents indicated a preference for multipurpose prevention technologies that combine HIV and pregnancy protection. Latent class analyses confirmed these findings and delineated heterogeneity in preferences across subgroups defined by age, past experience with the delivery forms, and education. Conclusions: Despite an overall preference for products with high efficacy, we identified attributes salient to future uptake and use of HIV prevention products. Preferences for injectable products underscored interest in this pre-exposure prophylaxis delivery form. Likewise, the multipurpose prevention technology feature was valued in both Kenya and South Africa and most influenced interest in vaginal rings.
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14
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van der Straten A, Agot K, Ahmed K, Weinrib R, Browne EN, Manenzhe K, Owino F, Schwartz J, Minnis A. The Tablets, Ring, Injections as Options (TRIO) study: what young African women chose and used for future HIV and pregnancy prevention. J Int AIDS Soc 2019; 21:e25094. [PMID: 29600595 PMCID: PMC5876496 DOI: 10.1002/jia2.25094] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 02/26/2018] [Indexed: 12/22/2022] Open
Abstract
Introduction Preventing HIV and unintended pregnancies are key global health priorities. To inform product rollout and to understand attributes of future multipurpose prevention technologies (MPT) associated with preference and use, we evaluated three placebo delivery forms: daily oral tablets, a monthly vaginal ring, and two monthly intramuscular injections in TRIO, a five‐month study among young Kenyan and South African women. Methods HIV‐negative, sexually active, non‐pregnant women aged 18 to 30 were enrolled and randomized to use each placebo delivery form for one month (stage 1). Then, participants chose one product to use for two additional months (stage 2). We assessed safety, product ranking, choice, and use. We examined demographic and behavioural correlates of choice and, reciprocally, unwillingness to use in the future with logistic regression models. Results 277 women enrolled, 249 completed stage 1 and 246 completed stage 2. Median age was 23 years, 49% were Kenyan and 51% were South African. Three participants became pregnant during the study and one participant HIV‐seroconverted. There were 18 product‐related adverse events, six tablets‐related, 11 ring‐related, and one injection‐related. After trying each product, 85% preferred a TRIO product over condoms. Injections were chosen most (64%, 95% confidence interval (CI) 58%, 70%; p < 0.001), and by more South Africans than Kenyans (odds ratio (OR) 2.01, 95% CI: 1.17, 3.43; p = 0.01). There was no significant difference in choosing tablets versus ring (21%, 95% CI: 16%, 26% vs. 15%, 95% CI: 11%, 20%; p = 0.11). Tablet and ring adherence, based on direct observations and self‐reports, improved over time. However, participants’ self‐reported use of tablets did not match objective data from the electronic dose monitoring device. Participants were fully compliant with injections. Conclusion In this population at risk for HIV and pregnancy, all participants agreed to choose and use a placebo MPT delivery form. A majority of participants preferred TRIO products to male condoms, an existing MPT. Injections were most liked and best used, however, they are years away from reaching the clinics. In the meantime, expanding the availability of tablets and giving access to rings can begin to fulfill the promise of choice for HIV prevention technologies and inform the development of suitable delivery forms as MPT.
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Affiliation(s)
- Ariane van der Straten
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA.,Department of Medicine, Center for AIDS prevention studies, UCSF, San Francisco, CA, USA
| | - Kawango Agot
- Impact Research and Development Organization, Kisumu, Kenya
| | | | - Rachel Weinrib
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA
| | - Erica N Browne
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA
| | | | - Fredrick Owino
- Impact Research and Development Organization, Kisumu, Kenya
| | | | - Alexandra Minnis
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA.,School of Public Health, UC Berkeley, CA, USA
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15
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Quaife M, Terris-Prestholt F, Eakle R, Cabrera Escobar MA, Kilbourne-Brook M, Mvundura M, Meyer-Rath G, Delany-Moretlwe S, Vickerman P. The cost-effectiveness of multi-purpose HIV and pregnancy prevention technologies in South Africa. J Int AIDS Soc 2019. [PMID: 29537654 PMCID: PMC5851344 DOI: 10.1002/jia2.25064] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Introduction A number of antiretroviral HIV prevention products are efficacious in preventing HIV infection. However, the sexual and reproductive health needs of many women extend beyond HIV prevention, and research is ongoing to develop multi‐purpose prevention technologies (MPTs) that offer dual HIV and pregnancy protection. We do not yet know if these products will be an efficient use of constrained health resources. In this paper, we estimate the cost‐effectiveness of combinations of candidate multi‐purpose prevention technologies (MPTs), in South Africa among general population women and female sex workers (FSWs). Methods We combined a cost model with a static model of product impact based on incidence data in South Africa to estimate the cost‐effectiveness of five candidate co‐formulated or co‐provided MPTs: oral PrEP, intravaginal ring, injectable ARV, microbicide gel and SILCS diaphragm used in concert with gel. We accounted for the preferences of end‐users by predicting uptake using a discrete choice experiment (DCE). Product availability and protection were systematically varied in five potential rollout scenarios. The impact model estimated the number of infections averted through decreased incidence due to product use over one year. The comparator for each scenario was current levels of male condom use, while a health system perspective was used to estimate discounted lifetime treatment costs averted per HIV infection. Product benefit was estimated in disability‐adjusted life years (DALYs) averted. Benefits from contraception were incorporated through adjusting the uptake of these products based on the DCE and through estimating the costs averted from avoiding unwanted pregnancies. We explore the additional impact of STI protection through increased uptake in a sensitivity analysis. Results At central incidence rates, all single‐ and multi‐purpose scenarios modelled were cost‐effective among FSWs and women aged 16–24, at a governmental willingness‐to‐pay threshold of $1175/DALY averted (range: $214–$810/DALY averted among non‐dominant scenarios), however, none were cost‐effective among women aged 25–49 (minimum $1706/DALY averted). The cost‐effectiveness of products improved with additional protection from pregnancy. Estimates were sensitive to variation in incidence assumptions, but robust to other parameters. Conclusions To the best of our knowledge, this is the first study to estimate the cost‐effectiveness of a range of potential MPTs; suggesting that MPTs will be cost‐effective among higher incidence FSWs or young women, but not among lower incidence older women. More work is needed to make attractive MPTs available to potential users who could use them effectively.
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Affiliation(s)
- Matthew Quaife
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK.,Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | - Fern Terris-Prestholt
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK
| | - Robyn Eakle
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK.,Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | | | | | | | - Gesine Meyer-Rath
- Center for Global Health and Development, Boston University, Boston, MA, USA.,Health Economics and Epidemiology Research Office, Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Peter Vickerman
- School of Social and Community Medicine, University of Bristol, Bristol, UK
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16
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Krogstad EA, Montgomery ET, Atujuna M, Minnis AM, O'Rourke S, Ahmed K, Bekker LG, van der Straten A. Design of an Implant for Long-Acting HIV Pre-Exposure Prophylaxis: Input from South African Health Care Providers. AIDS Patient Care STDS 2019; 33:157-166. [PMID: 30932697 DOI: 10.1089/apc.2018.0177] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Implants are in the pre-clinical stage for long-acting HIV pre-exposure prophylaxis (PrEP), with an opportunity to solicit end-users' feedback early in development. Health care providers (HCPs) have been key gatekeepers for contraceptive implant uptake, and uniquely understand both technical considerations and the social context of use. Given their influential role, we gathered South African HCP perspectives on contraceptive implant implementation and features of PrEP implant prototypes that may influence future provider and patient acceptability. We conducted in-depth interviews with 30 HCPs (20 nurses and 10 doctors) in Cape Town and Soshanguve, South Africa. Interviews were conducted by a bioengineer and later transcribed, coded, and analyzed for key themes. HCPs described health system barriers such as understaffed clinics and inadequate training on contraceptive implant removal as major influences to their PrEP implant design preferences. They preferred a PrEP implant that is long lasting (>6 months) to minimize patient-clinic interactions, biodegradable to avoid need for removal, and flexible (but still palpable in case of removal). Commenting on negative experiences with contraceptive implant rollout, they recommended prioritizing both HCP and community education on the PrEP implant, with emphasis on expected side effects, and planning ahead for adequate training of HCPs before rollout. Challenges experienced with past contraceptive implant rollout may taint perspectives on future PrEP implants and must be carefully considered during product development and planning for clinical studies. Particular consideration should be given to the health system context of future distribution, including staff who would be providing and monitoring implants.
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Affiliation(s)
- Emily A. Krogstad
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
- RTI International, Women's Global Health Imperative, San Francisco, California
| | | | - Millicent Atujuna
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Alexandra M. Minnis
- RTI International, Women's Global Health Imperative, San Francisco, California
| | - Shannon O'Rourke
- RTI International, Women's Global Health Imperative, San Francisco, California
| | | | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Ariane van der Straten
- RTI International, Women's Global Health Imperative, San Francisco, California
- Center for AIDS Prevention Studies, University of California—San Francisco, San Francisco, California
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17
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Shapley-Quinn MK, Manenzhe KN, Agot K, Minnis AM, van der Straten A. "We are not the same": African women's view of multipurpose prevention products in the TRIO clinical study. Int J Womens Health 2019; 11:97-107. [PMID: 30799959 PMCID: PMC6369839 DOI: 10.2147/ijwh.s185712] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Purpose Unintended pregnancy and HIV infection present dual risks for young women in sub-Saharan Africa. New multipurpose prevention technologies (MPTs) are in development to simultaneously prevent unintended pregnancy and HIV, but there is a need for end-user research to ensure these products suit women’s needs. The Tablet, Rings and Injectables as Options (TRIO) for women study took place in Kisumu, Kenya, and Soshanguve, South Africa, with the goal of eliciting young women’s feedback on three potential MPTs. Methods Women in TRIO used three placebo products that represented potential MPTs: daily oral tablets, monthly vaginal rings, and monthly dual injections in a randomized crossover design followed by a period in which they chose a product to use. Eighty-eight TRIO participants completed in-depth interviews and focus group discussions to understand their experiences using each product. Qualitative analyses were conducted after stratifying by product preference at the end of the crossover period. Results The majority (65%) of participants preferred injections, with the remainder evenly split between tablets and rings. Discussions of preference for one product were closely linked with expressed dislike of another product’s attributes. Participants recognized heterogeneity in preferences and choices across users and stressed the need for multiple MPT options that confer a low burden on women’s daily lives. Conclusion Rather than choosing a product to use based on the product’s perceived advantages, women’s choices were based on the unfavorable attributes of other TRIO products. Moreover, the importance that women placed on a given disadvantage varied. Disadvantages that women deemed as most important emerged as a greater driver of product preference than selecting products based on their advantages and favorable characteristics.
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Affiliation(s)
| | | | - Kawango Agot
- Impact Research and Development Organization, Kisumu, Kenya
| | - Alexandra M Minnis
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA, .,School of Public Health, UC Berkeley, Berkeley, CA, USA
| | - Ariane van der Straten
- Women's Global Health Imperative (WGHI) RTI International, San Francisco, CA, USA, .,Department of Medicine, Center for AIDS Prevention Studies, UCSF, San Francisco, CA, USA
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18
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Hynes JS, Sheth AN, Lathrop E, Sales JM, Haddad LB. Preferred Product Attributes of Potential Multipurpose Prevention Technologies for Unintended Pregnancy and Sexually Transmitted Infections or HIV Among U.S. Women. J Womens Health (Larchmt) 2019; 28:665-672. [PMID: 30615569 DOI: 10.1089/jwh.2018.7001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Background: Multipurpose prevention technologies (MPTs) are being developed to simultaneously protect women from unintended pregnancy and sexually transmitted infections (STIs) or human immunodeficiency virus. This study aims to determine MPT characteristics desired by young women in the United States (U.S.). Materials and Methods: This is a cross-sectional national survey administered online by MTurk. Eligibility criteria included female sex, age 18-29 years, U.S. residence, and sexual activity with a male partner in the past 3 months. MPT characteristics were rated for importance. Odds ratios were generated to explore associations between demographics, sexual behaviors, and prior contraceptive use and likelihood of using various MPT formulations. Results: Of 835 women, the largest proportion reported being likely to use MPTs in the form of injectables (45.6%), followed by vaginal gels (33.7%), vaginal rings (26.3%) and diaphragms (17.3%). Women with prior experience using a specific method of contraception appeared more likely to try an MPT of the same form. Women concerned about STIs and unwanted pregnancy, or with a history of such undesirable outcomes, expressed higher likelihood of use for a broad range of products. Women indicated that safety and efficacy at preventing pregnancy were the most important product characteristics when choosing an MPT. Conclusions: MPTs in the form of injectables are most highly desired, but many women would use vaginal methods, highlighting the importance of developing different delivery methods. Women desire safety and emphasize contraceptive efficacy over infection prevention. MPT preferences must be considered during product development to promote future acceptance among young women in the U.S.
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Affiliation(s)
- Jenna S Hynes
- 1 Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, North Carolina
| | - Anandi N Sheth
- 2 Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia
| | - Eva Lathrop
- 3 Department of Gynecology and Obstetrics, Emory University School of Medicine, Faculty Office Building, Atlanta, Georgia
| | - Jessica M Sales
- 4 Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Lisa B Haddad
- 3 Department of Gynecology and Obstetrics, Emory University School of Medicine, Faculty Office Building, Atlanta, Georgia
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19
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Lutnick A, Shapley-Quinn MK, Manenzhe KN, Onyango J, Agot K, Ahmed K, van der Straten A. Two Birds with One Stone: Health Care Providers' Perspectives about Prevention Technologies in Kenya and South Africa. J Int Assoc Provid AIDS Care 2019; 18:2325958219841366. [PMID: 31018754 PMCID: PMC6748465 DOI: 10.1177/2325958219841366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 02/25/2018] [Accepted: 03/06/2019] [Indexed: 11/19/2022] Open
Abstract
To meet the reproductive health needs of women, especially those in sub-Saharan Africa, multipurpose prevention technologies (MPTs) that combine pregnancy and HIV prevention into a single product could be highly beneficial. This qualitative study with health care providers in Kenya and South Africa examined health system factors that may facilitate or inhibit the delivery of these MPTs. Twelve qualitative interviews were conducted with health care providers at each site (24 interviews total). Providers were presented with pictures and actual placebo prototypes of 4 MPTs: a vaginal ring, an oral pill, an injectable, and an implant. Four themes emerged related to health care providers' reported interest in offering the proposed MPTs: (1) perceptions of young women's interest in the MPTs, (2) considerations about product administration, (3) feedback about product attributes, and (4) providers' training needs. Overwhelmingly, health care providers are eager to offer a product that prevents both HIV and unintended pregnancy in young women.
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Affiliation(s)
- Alexandra Lutnick
- RTI International, Behavioral and Urban Health Program, San Francisco, CA,
USA
| | | | | | - Jacob Onyango
- Impact Research And Development Organisation, Kisumu, Kenya
| | - Kawango Agot
- Impact Research And Development Organisation, Kisumu, Kenya
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20
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Laborde ND, Leslie J, Krogstad E, Morar N, Mutero P, Etima J, Woodrow K, van der Straten A. Perceptions of the "Fabric" - An exploratory study of a novel multi-purpose technology among women in Sub Saharan Africa. PLoS One 2018; 13:e0204821. [PMID: 30379839 PMCID: PMC6209182 DOI: 10.1371/journal.pone.0204821] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/15/2018] [Indexed: 11/18/2022] Open
Abstract
Background HIV and pregnancy prevention are dual health priorities for women, and particularly in sub-Saharan Africa. Drug-eluting fibers offer a dosage form that combines HIV prevention and contraception, but early understanding of end-user perspectives is critical to avoid misalignment between products being developed and preferred product attributes. Methods Focus group discussions (FGDs) were conducted in South Africa, Uganda and Zimbabwe, among 55 women who had used vaginal products in previous trials. Participants were given the opportunity to feel a sample of electrospun nanofiber (the fabric), see how it dissolves, and give feedback on shape, size and other attributes. Women were also asked to compare the fabric to vaginal gel and film. Results Three key themes regarding the acceptability of the fabric emerged: 1) look and feel of the product undissolved vs. undissolved, 2) expected effect on sex, and 3) convenience and ease of use. Upon being presented with the fabric, women were initially distrustful, seeing it as undesirable for vaginal insertion. Women generally approved of the product once they saw it dissolve. However, they stressed the importance of the product not interfering with sex by altering the vaginal environment. Women also reacted favorably to the perceived convenience of the fabric, particularly with regards to storage and transport, perceived ease of insertion and use, and dosing regimen. Conclusion Multipurpose prevention technologies, and nanofibers in particular, should be developed with an eye to minimizing impact on sex while maximizing convenience, and presented in such a way as to emphasize non-abrasiveness and ease of dissolution.
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Affiliation(s)
- Nicole D. Laborde
- Women’s Global Health Imperative, RTI International, San Francisco, CA, United States of America
| | - Jonah Leslie
- Women’s Global Health Imperative, RTI International, San Francisco, CA, United States of America
| | - Emily Krogstad
- Women’s Global Health Imperative, RTI International, San Francisco, CA, United States of America
- Department of Bioengineering, University of Washington, Seattle, WA, United States of America
| | - Neetha Morar
- South Africa Medical Research Council, Durban, South Africa
| | - Prisca Mutero
- UZ-UCSF Collaborative Research Programme, Harare, Zimbabwe
| | - Juliane Etima
- Makerere University-Johns Hopkins University Research Unit, Kampala, Uganda
| | - Kim Woodrow
- Department of Bioengineering, University of Washington, Seattle, WA, United States of America
| | - Ariane van der Straten
- Women’s Global Health Imperative, RTI International, San Francisco, CA, United States of America
- Center for AIDS Prevention Studies, Department of Medicine, University of California San Francisco, San Francisco, CA, United States of America
- * E-mail:
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21
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Minnis AM, Roberts ST, Agot K, Weinrib R, Ahmed K, Manenzhe K, Owino F, van der Straten A. Young Women's Ratings of Three Placebo Multipurpose Prevention Technologies for HIV and Pregnancy Prevention in a Randomized, Cross-Over Study in Kenya and South Africa. AIDS Behav 2018; 22:2662-2673. [PMID: 29560570 PMCID: PMC6097726 DOI: 10.1007/s10461-018-2078-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
End-user input is critical to inform development of multipurpose prevention technology (MPT) products that prevent HIV and pregnancy. The TRIO Study, conducted in Kenya and South Africa, enrolled 277 HIV-negative women aged 18-30 in a randomized cross-over study to use each placebo MPT (daily oral tablets, monthly injections, and monthly vaginal ring) for one month. At the end of each month, participants rated how much they liked using the product on a 5-point Likert scale (5 = liked very much). We compared mean ratings using paired t-tests and examined sociodemographic-, attribute-, and behavior-related characteristics associated with ratings using multivariable linear regression and data from in-depth interviews. After use, mean ratings were significantly higher for injections [4.3 (SD = 1.0)] compared with tablets [3.0 (SD = 1.3)] and rings [3.3 (SD = 1.4)] (p < 0.001); mean ratings for rings were significantly higher than for tablets (p = 0.013). Mean ratings of a hypothetical active MPT increased for all products after the one-month period of use, with the greatest increase for rings, the least familiar product. In multivariable analysis, acceptability of key product attributes (e.g., product look) were associated with a significant increase of ≥ 1 point in the mean rating across all three products (p ≤ 0.001). Perceived ability to use the product without partner knowledge was associated with a higher mean rating for rings (b = 0.50; p = 0.006). The acceptability of product attributes contributed significantly to the rating of all products, highlighting the value of choice in pregnancy and HIV prevention to accommodate diverse users.
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Affiliation(s)
- Alexandra M Minnis
- Women's Global Health Imperative, RTI International, 351 California Street, Suite 500, San Francisco, CA, 94104, USA.
- School of Public Health, University of California, Berkeley, USA.
| | - Sarah T Roberts
- Women's Global Health Imperative, RTI International, 351 California Street, Suite 500, San Francisco, CA, 94104, USA
| | - Kawango Agot
- Impact Research and Development Organization, Kisumu, Kenya
| | - Rachel Weinrib
- Women's Global Health Imperative, RTI International, 351 California Street, Suite 500, San Francisco, CA, 94104, USA
| | | | | | - Fredrick Owino
- Impact Research and Development Organization, Kisumu, Kenya
| | - Ariane van der Straten
- Women's Global Health Imperative, RTI International, 351 California Street, Suite 500, San Francisco, CA, 94104, USA
- Department of Medicine, Center for AIDS Prevention Studies, University of California, San Francisco, USA
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22
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Krogstad EA, Atujuna M, Montgomery ET, Minnis A, Ndwayana S, Malapane T, Shapley‐Quinn MK, Manenzhe K, Bekker L, van der Straten A. Perspectives of South African youth in the development of an implant for HIV prevention. J Int AIDS Soc 2018; 21:e25170. [PMID: 30152004 PMCID: PMC6111144 DOI: 10.1002/jia2.25170] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Implants are a new dosage form in development for HIV pre-exposure prophylaxis (PrEP) with potential for high adherence given that they are provider-administered and are intended for long-acting protection. Integrating end-user preference into early stage product development may further overcome challenges with future product uptake and adherence. Hence, we sought to optimize the design of a PrEP implant in early-stage development by gathering opinions about implant attributes from potential end-users in South Africa. METHODS We conducted 14 focus group discussions (FGDs) with young women and men aged 18 to 24 in Cape Town and Soshanguve, South Africa, inviting participants into discussion as co-designers. FGDs were homogenous by gender and previous implant experience. During FGDs, we showed prototype devices and followed a semi-structured guide with questions on history of contraceptive implant use, preferences for physical characteristics of an implant, implant biodegradability, insertion process, participant-driven ideas for implant design, and social adoption considerations. FGDs were facilitated in English, isiXhosa, Tswana, isiZulu, or Tsonga, audio-recorded, transcribed into English, and qualitatively coded and analysed. RESULTS In this qualitative sample of 105 youth (68 women and 37 men), 58 participants were from Soshanguve and 47 from Cape Town, and 23% had previously used contraceptive implants. Participants expressed preferences for several implant design features; specifically, longer duration (≥6 months) was more important to most participants than the size or number of devices implanted. A majority preferred a flexible versus stiff implant to minimize palpability, thereby increasing discreetness and comfort. Nearly all participants favoured a biodegradable implant to avoid removal and thus reduce clinic visits. Concerns about the implant centred on its possible side effects and the "plastic" look of the prototype displayed for demonstration. CONCLUSIONS This study offers preliminary insights into an implant for HIV prevention that provides long-lasting protection may be well received among young South Africans. Additionally, flexibility, discreetness, and biodegradability may increase acceptability of the implant. Such end-user feedback is being incorporated into current implant designs in the hope of creating an effective long-acting PrEP product that is likely to achieve high uptake and adherence in target populations.
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Affiliation(s)
- Emily A Krogstad
- Desmond Tutu HIV CentreUniversity of Cape TownCape TownSouth Africa
- RTI InternationalWomen's Global Health ImperativeSan FranciscoCaliforniaUSA
| | | | | | - Alexandra Minnis
- RTI InternationalWomen's Global Health ImperativeSan FranciscoCaliforniaUSA
| | - Sheily Ndwayana
- Desmond Tutu HIV CentreUniversity of Cape TownCape TownSouth Africa
| | | | | | | | | | - Ariane van der Straten
- RTI InternationalWomen's Global Health ImperativeSan FranciscoCaliforniaUSA
- Center for AIDS Prevention StudiesUniversity of California – San FranciscoSan FranciscoCaliforniaUSA
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Govender E, Mansoor L, MacQueen K, Abdool Karim Q. Secrecy, empowerment and protection: positioning PrEP in KwaZulu-Natal, South Africa. CULTURE, HEALTH & SEXUALITY 2017; 19:1268-1285. [PMID: 28423992 DOI: 10.1080/13691058.2017.1309682] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The release of World Health Organisation guidelines recommending the prophylactic use of daily Truvada® for all populations at high risk of acquiring HIV opens the way for implementation of oral pre-exposure prophylaxis (PrEP). The impact of new prevention technologies is, however, dependent on demand creation strategies such as user awareness, acceptability and access, which in turn are influenced by sociocultural and gender norms. This study was conducted in three locations in KwaZulu-Natal, urban, rural and peri-urban, with six participatory workshops. Knowledge, desirable features of a product and demand positioning for PrEP were assessed using a participatory action media research process which included art-based activities and group discussion using a semi-structured interview schedule. The data were analysed using thematic analysis. The key themes that emerged in relation to product adoption were: ability to maintain secrecy of product use; the need for agency with personal choices around HIV prevention; and an increased desire for HIV protection. Findings reaffirm the influence of user engagement in understanding the sociocultural dynamics that influence demand creation for PrEP adoption.
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Affiliation(s)
- Eliza Govender
- a Centre for the AIDS Programme of Research in South Africa (CAPRISA) , University of KwaZulu-Natal , Durban , South Africa
- b Centre for Culture, Communication and Media Studies (CCMS), College of Humanities , University of KwaZulu-Natal , Durban , South Africa
| | - Leila Mansoor
- a Centre for the AIDS Programme of Research in South Africa (CAPRISA) , University of KwaZulu-Natal , Durban , South Africa
| | - Kate MacQueen
- c Social and Behavioural Health Sciences, FHI 360 , Durham , NC , USA
| | - Quarraisha Abdool Karim
- a Centre for the AIDS Programme of Research in South Africa (CAPRISA) , University of KwaZulu-Natal , Durban , South Africa
- d Department of Epidemiology , Columbia University , New York , NY , USA
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Hynes JS, Sales JM, Sheth AN, Lathrop E, Haddad LB. Interest in multipurpose prevention technologies to prevent HIV/STIs and unintended pregnancy among young women in the United States. Contraception 2017; 97:277-284. [PMID: 29055782 DOI: 10.1016/j.contraception.2017.10.006] [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] [Received: 03/31/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 12/27/2022]
Abstract
OBJECTIVE High rates of sexually transmitted infections (STIs) and unintended pregnancy suggest a role for multipurpose prevention technologies (MPTs) designed to combine contraception and infection prophylaxis into one unified method. This study aims to determine factors associated with interest in MPTs among US women. STUDY DESIGN We administered a national cross-sectional survey via MTurk. Eligibility criteria included female gender, age 18-29 years, residence in the USA, and sexual activity with a male partner in the past three months. In total, 835 surveys were suitable for analysis. Bivariable and multivariable logistic regressions were performed to determine factors associated with interest in MPTs. RESULTS Eighty-three percent of women were interested in MPTs. Factors associated with interest included oral sex in the past three months (aOR 1.87, 95% CI 1.07, 3.53), recent use of oral contraceptive pills (OCPs; aOR 1.78, 95% CI 1.08, 2.93), HIV test within one year (aOR 2.10, 95% CI 1.29, 3.40), and increased STI worry score (aOR 1.98, 95% CI 1.36, 2.86). No use of contraception in the past three months was associated with decreased interest in MPTs (aOR 0.31, 95% CI 0.17, 0.58). HIV risk factors including race were not associated with MPT interest. CONCLUSION Our data show that young, sexually active, US women are interested in MPTs. Women who used contraception, specifically OCPs, or evidenced concern for infection were most likely to be interested in such a product. Women reporting unsafe sexual habits were less likely to be interested, highlighting the importance of HIV/STI prevention education. IMPLICATIONS Women in the USA are interested in multipurpose prevention technologies, particularly those women who currently use contraception or are concerned about their risk of infection. Our results emphasize the importance of moving forward with MPT development as well as continued HIV/STI prevention education.
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Affiliation(s)
- Jenna S Hynes
- Emory University School of Medicine, Department of Gynecology and Obstetrics, 49 Jesse Hill Jr. Drive, NE, Faculty Office Building, Atlanta, GA 30322, USA.
| | - Jessica M Sales
- Rollins School of Public Health, Emory University, 1518 Clifton Road NE, Atlanta, GA 30322, USA.
| | - Anandi N Sheth
- Emory University School of Medicine, Department of Medicine, Division of Infectious Diseases, 201 Dowman Drive, Atlanta, GA 30322, USA.
| | - Eva Lathrop
- Emory University School of Medicine, Department of Gynecology and Obstetrics, 49 Jesse Hill Jr. Drive, NE, Faculty Office Building, Atlanta, GA 30322, USA.
| | - Lisa B Haddad
- Emory University School of Medicine, Department of Gynecology and Obstetrics, 49 Jesse Hill Jr. Drive, NE, Faculty Office Building, Atlanta, GA 30322, USA.
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Quaife M, Eakle R, Cabrera Escobar MA, Vickerman P, Kilbourne-Brook M, Mvundura M, Delany-Moretlwe S, Terris-Prestholt F. Divergent Preferences for HIV Prevention: A Discrete Choice Experiment for Multipurpose HIV Prevention Products in South Africa. Med Decis Making 2017; 38:120-133. [PMID: 28863752 DOI: 10.1177/0272989x17729376] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The development of antiretroviral (ARV)-based prevention products has the potential to substantially change the HIV prevention landscape; yet, little is known about how appealing these products will be outside of clinical trials, as compared with the existing options. METHODS We conducted a discrete choice experiment (DCE) to measure preferences for 5 new products among 4 important populations in the HIV response: adult men and women in the general population (aged 18 to 49 y), adolescent girls (aged 16 to 17 y), and self-identifying female sex workers (aged 18 to 49 y). We interviewed 661 self-reported HIV-negative participants in peri-urban South Africa, who were asked to choose between 3 unique, hypothetical products over 10 choice sets. Data were analyzed using multinomial, latent class and mixed multinomial logit models. RESULTS HIV protection was the most important attribute to respondents; however, results indicate significant demand among all groups for multipurpose prevention products that offer protection from HIV infection, other STIs, and unwanted pregnancy. All groups demonstrated a strong preference for long-lasting injectable products. There was substantial heterogeneity in preferences within and across population groups. LIMITATIONS Hypothetical DCE data may not mirror real-world choices, and products will have more attributes in reality than represented in choice tasks. Background data on participants, including sensitive areas of HIV status and condom use, was self-reported. CONCLUSIONS These results suggest that stimulating demand for new HIV prevention products may require a more a nuanced approach than simply developing highly effective products. No single product is likely to be equally attractive or acceptable across different groups. This study strengthens the call for effective and attractive multipurpose prevention products to be deployed as part of a comprehensive combination prevention strategy.
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Affiliation(s)
- Matthew Quaife
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK (MQ, RE, PV, FT).,Wits RHI, University of the Witwatersrand, Johannesburg, Gauteng, South Africa (MQ, RE, EAC, SD)
| | - Robyn Eakle
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK (MQ, RE, PV, FT).,Wits RHI, University of the Witwatersrand, Johannesburg, Gauteng, South Africa (MQ, RE, EAC, SD)
| | - Maria A Cabrera Escobar
- Wits RHI, University of the Witwatersrand, Johannesburg, Gauteng, South Africa (MQ, RE, EAC, SD)
| | - Peter Vickerman
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK (MQ, RE, PV, FT).,School of Social and Community Medicine, University of Bristol, Bristol, England, UK (PV)
| | | | | | - Sinead Delany-Moretlwe
- Wits RHI, University of the Witwatersrand, Johannesburg, Gauteng, South Africa (MQ, RE, EAC, SD)
| | - Fern Terris-Prestholt
- Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, UK (MQ, RE, PV, FT)
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McLellan-Lemal E, Gust DA, Gvetadze R, Furtado M, Otieno FO, Desai M, Zeh C, Samandari T, Nyagol B, Makanga EM. Characteristics of women screened for a contraceptive intravaginal ring study in Kisumu, Kenya, 2014. RESEARCH JOURNAL OF WOMEN'S HEALTH 2016; 3:1. [PMID: 27441094 PMCID: PMC4946642 DOI: 10.7243/2054-9865-3-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 06/30/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND HIV antiretroviral-based intravaginal rings with and without co-formulated contraception hold promise for increasing HIV prevention options for women. Acceptance of and ability to correctly and consistently use this technology may create challenges for future ring-based microbicide trials in settings where this technology has not been introduced. We examined baseline factors associated with enrolling in a contraceptive intravaginal ring study in Kisumu, Kenya and describe notional acceptability (willingness to switch to a contraceptive ring based solely on information received about it). METHODS Demographic, psychosocial, and behavioral eligibility screening of women 18-34 years was undertaken. Testing for pregnancy, HIV, and other sexually transmitted infections (STIs) was also conducted. We compared enrollment status across groups of categorical predictors using prevalence ratios (PR) and 95% confidence interval (CI) estimates obtained from a log-binomial regression model. RESULTS Out of 692 women pre-screened April to November 2014, 463 completed screening, and 302 women were enrolled. Approximately 97% of pre-screened women were willing to switch from their current contraceptive method to use the intravaginal ring exclusively for the 6-month intervention period. Pregnancy, HIV, and STI prevalence were 1.7%, 14.5%, and 70.4% respectively for the 463 women screened. Women 18-24 (PR=1.47, CI 1.15-1.88) were more likely to be enrolled than those 30-34 years of age, as were married/cohabitating women (PR=1.62, CI 1.22-2.16) compared to those separated, divorced, or widowed. In adjusted analyses, sexual debut at less than 17 years of age, one lifetime sexual partner, abnormal vaginal bleeding in the past 12 months, condomless vaginal or anal sex in the past 3 months, and not having a sexual partner of unknown HIV status in the past 3 months were predictive of enrollment. CONCLUSION High notional acceptability suggests feasibility for contraceptive intravaginal ring use. Factors associated with ring use initiation and 6-month use will need to be assessed.
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Affiliation(s)
- Eleanor McLellan-Lemal
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
| | - Deborah A. Gust
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
| | - Roman Gvetadze
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
| | - Melissa Furtado
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
- Engility Corporation, Atlanta, GA, USA
| | | | - Mitesh Desai
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
| | - Clement Zeh
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Kisumu, Kenya
| | - Taraz Samandari
- Centers for Disease Control and Prevention, Office of Infectious Diseases, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Division of HIV/AIDS Prevention, Atlanta, Georgia
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Multipurpose prevention technologies: the future of HIV and STI protection. Trends Microbiol 2015; 23:429-436. [PMID: 25759332 DOI: 10.1016/j.tim.2015.02.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 02/12/2015] [Accepted: 02/17/2015] [Indexed: 11/21/2022]
Abstract
Every day, more than 1 million people are newly infected with sexually transmitted infections (STIs) that can lead to morbidity, mortality, and an increased risk of human immunodeficiency virus (HIV) acquisition. Existing prevention and management strategies, including behavior change, condom promotion, and therapy have not reduced the global incidence and prevalence, pointing to the need for novel innovative strategies. This review summarizes important issues raised during a satellite session at the first HIV Research for Prevention (R4P) conference, held in Cape Town, on October 31, 2014. We explore key STIs that are challenging public health today, new biomedical prevention approaches including multipurpose prevention technologies (MPTs), and the scientific and regulatory hurdles that must be overcome to make combination prevention tools a reality.
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Woodsong C, Holt J, Devlin B, Rosenberg Z. Current Status of Multipurpose Prevention Technology (MPT) Development. CURRENT OBSTETRICS AND GYNECOLOGY REPORTS 2015. [DOI: 10.1007/s13669-014-0107-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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