Maria Pyra

Maria Pyra

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 July 2015 in Archives of Women's Mental Health
Verified
Journal Article
Closed access
PDF file
ABA. F. Bell
A. F. Bell
CCC. S. Carter
C. S. Carter
JDJ. M. Davis
J. M. Davis
JGJean Golding
Jean Golding
OAO. Adejumo
O. Adejumo
LRL. H. Rubin
L. H. Rubin

28 August 2019 in Journal of the International AIDS Society
Verified
Journal Article
Open access
PDF file
MPMaria Pyra
Maria Pyra
JHJessica E Haberer
Jessica E Haberer
NHNina Hasen
Nina Hasen
JRJason Reed
Jason Reed
NMNelly R Mugo
Nelly R Mugo
JBJared M Baeten
Jared M Baeten
Introduction: Questions remain whether HIV pre‐exposure prophylaxis (PrEP) can be translated into a successful public health intervention, leading to a decrease in population‐level HIV incidence. We use examples from HIV treatment and contraceptives to discuss expectations for PrEP uptake, adherence, and persistence and their combined impact on the epidemic.Discussion: Targets for PrEP uptake must be based on the local HIV epidemic and will depend on appropriate estimates of the key populations at risk for HIV. However, there is evidence that targets, once established, can successfully be met and that uptake may increase with awareness. Messaging around adherence should include that daily adherence is the goal (except for those MSM for whom event‐driven dosing is a good fit), but perfect adherence should not be a barrier. Ideally, clients persist on PrEP for as long as they are at risk for HIV. While PrEP will be most effective when coverage is focused on high‐risk populations, normalizing rather than stigmatizing PrEP will be highly beneficial.Conclusions: While many challenges to PrEP implementation exist, we focused on the three key steps of uptake, adherence and persistence as measurable processes that can lead to improved coverage and decreased HIV incidence.

1 January 2016 in Journal of the International AIDS Society
Verified
Journal Article
Open access
PDF file
RPRena C Patel
Rena C Patel
GSGaelen Stanford‐Moore
Gaelen Stanford‐Moore
JOJosephine Odoyo
Josephine Odoyo
MPMaria Pyra
Maria Pyra
IWImeldah Wakhungu
Imeldah Wakhungu
JBJoelle M Brown
Joelle M Brown
Introduction: Since 2015, the World Health Organization recommends pre‐exposure prophylaxis (PrEP) for all persons at substantial risk for HIV, including HIV‐uninfected partners in serodiscordant relationships in resource‐limited settings. As PrEP moves from clinical trials to real‐world use, understanding facilitators of and barriers to PrEP initiation and adherence is critical to successful PrEP implementation and rollout.Methods: We conducted 44 in‐depth individual or couple interviews with 63 participants (30 without HIV and 33 with HIV) enrolled in the Partners Demonstration Project in Kisumu, Kenya, between August and September 2014. The semi‐structured interviews discussed the following: 1) perceived advantages and disadvantages of antiretroviral therapy (ART)/PrEP; 2) reasons for accepting or declining ART/PrEP and 3) influence of prevention of transmission to partner or infant on ART/PrEP use. Transcripts from the interviews were iteratively analyzed using inductive content analysis.Results: Our study identified three key factors that may facilitate initiation of PrEP in this population. First, participants using PrEP felt reduced stress and increased trust in their HIV serodiscordant relationships. Second, greater community‐wide knowledge of PrEP was thought to likely increase PrEP acceptance. Third, greater education and counselling by providers on PrEP use was also considered to likely increase the adoption of PrEP. We also identified three key barriers to initiation of and adherence to PrEP. First, most participants who declined PrEP expressed doubts about the relative additional effectiveness of PrEP in combination with other prevention tools. Second, perceived stigma related to PrEP use was an important barrier to PrEP initiation. Third, many struggled with overcoming perceived side effects or logistical challenges of taking daily PrEP, particularly when they themselves were not ill.Conclusions: Leveraging the facilitators and overcoming barriers to PrEP uptake may enhance the successful rollout of PrEP among HIV serodiscordant couples in Kenya and other areas in sub‐Saharan Africa, thereby reducing sexual transmission of HIV. Further research focused on how best to provide counselling on combination HIV prevention tools in the context of PrEP use is a crucial next step to delivering PrEP.

1 April 2018 in Contraception
Verified
Journal Article
Closed access
SBSteven W. Blue
Steven W. Blue
AWAndrea J. Winchell
Andrea J. Winchell
AKAmy V. Kaucher
Amy V. Kaucher
RLRachel A. Lieberman
Rachel A. Lieberman
CGChristopher T. Gilles
Christopher T. Gilles
DEDavid W. Erikson
David W. Erikson

1 January 2019 in Journal of the International Association of Providers of AIDS Care (JIAPAC)
Verified
Journal Article
Open access
PDF file
JHJessica E. Haberer
Jessica E. Haberer
NMNelly Mugo
Nelly Mugo
JBJared M. Baeten
Jared M. Baeten
MPMaria Pyra
Maria Pyra
EBElizabeth Bukusi
Elizabeth Bukusi
LBLinda-Gail Bekker
Linda-Gail Bekker
Adolescent girls and young women (AGYW) are highly affected by the HIV epidemic, yet standard approaches to pre-exposure prophylaxis (PrEP) delivery will not meet their needs. This commentary highlights key characteristics of AGYW related to PrEP use and delivery, including typical neurocognitive development, lack of experience with sustained medication use, and the social and connected nature of AGYW’s lives. We then suggest ways for programs to embrace these characteristics, such as presenting PrEP as a lifestyle choice and not a biomedical tool, making access to PrEP simple and easy, and recognizing the many influences AGYW face in taking PrEP. We also suggest ways for programs to identify AGYW at the highest risk of HIV acquisition. Adolescent girls and young women have an important role to play in ending the HIV epidemic and they deserve considerable, tailored investment.

1 November 2015 in AIDS
Verified
Journal Article
Closed access
MPMaria Pyra
Maria Pyra
RHRenee Heffron
Renee Heffron
NMNelly R. Mugo
Nelly R. Mugo
KNKavita Nanda
Kavita Nanda
KTKatherine K. Thomas
Katherine K. Thomas
JBJared M. Baeten
Jared M. Baeten
Objective: The objective of this study is to assess whether antiretroviral therapy (ART) may diminish the effectiveness of hormonal contraceptive methods. Methods: Using data from 5153 HIV-infected women followed prospectively for 1–3 years in three HIV prevention studies in Africa, we compared incident pregnancy rates by contraceptive method (implant, injectable, oral or none) and ART use. Multivariable Cox regression models were used to determine adjusted hazard ratios (aHRs) and test interactions between each method and ART use. Results: During follow-up, 9% of women ever used implants, 40% used injectables and 14% used oral contraceptives; 31% of women ever used ART, mostly nevirapine (75% of ART users) or efavirenz-based (15%). Among women not using contraception, pregnancy rates were 13.2 and 22.5 per 100 women-years for those on and not on ART, respectively. Implants greatly reduced the incidence of pregnancy among both women on ART [aHR 0.06, 95% confidence interval (95% CI) 0.01–0.45] and not on ART (aHR 0.05, 95% CI 0.02–0.11). Injectables (aHR 0.18 on ART and aHR 0.20 not on ART) and oral contraceptives (aHR 0.37 on ART and aHR 0.36 not on ART) also reduced pregnancy risk, though by lesser degrees. ART use did not significantly diminish contraceptive effectiveness, although all methods showed nonstatistically significant reduced effectiveness when concurrently using efavirenz. Conclusion: Hormonal contraceptive methods are highly effective in reducing pregnancy risk in HIV-infected women, including those concurrently using ART. Studies of potential interactions between ART and contraceptives should evaluate real-world effectiveness of contraceptive methods; in this study, implants were the most effective method to prevent pregnancy, even during ART use.