Agnes Nakyanzi

Dr. Agnes Nakyanzi


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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23 December 2021 in JAIDS Journal of Acquired Immune Deficiency Syndromes
Verified
Journal Article
Open access
AMAndrew Mujugira
Andrew Mujugira
ANAgnes Nakyanzi
Agnes Nakyanzi
MNMaria Sarah Nabaggala
Maria Sarah Nabaggala
TMTIMOTHY RONALD MUWONGE
TIMOTHY RONALD MUWONGE
TSTimothy Ssebuliba
Timothy Ssebuliba
JHJessica E. Haberer
Jessica E. Haberer
Background: HIV self-testing (HIVST) and pre-exposure prophylaxis (PrEP) are complementary tools that could empower sex workers to control their HIV protection, but few studies have jointly evaluated PrEP and HIVST in any setting. Methods: The Empower Study was an open-label randomized trial in Uganda. Sex workers were offered F/tenofovir disoproxil fumarate and randomized 1:1 to monthly HIVST and quarterly in-clinic testing (intervention) or quarterly in-clinic HIV testing alone (standard of care) and followed up for 12 months. PrEP adherence was measured using electronic adherence monitoring and tenofovir diphosphate (TFV-DP) levels in dried blood spots. Adherence outcomes and sexual behaviors were compared by arm using generalized estimating equation models. Results: We enrolled 110 sex workers: 84 cisgender women, 14 transgender women, 10 men who have sex with men, and 2 transgender men. The median age was 23 years. The 12-month retention was 75%. Nearly all (99.4%) used ≥1 HIVST kit. The proportion with TFV-DP levels ≥700 fmol/punch in the HIVST and standard of care arms at the 3-, 6-, 9-, and 12-month visits was 2.4%, 2.3%, 0%, and 0% and 7.9%, 0%, 0%, and 0%, respectively, with no differences by randomization arm (P > 0.2). Self-reported condomless sex acts with paying partners was similar by arm [adjusted incidence rate ratio 0.70; 95% confidence interval (CI): 0.42 to 1.17; P = 0.18]. One seroconversion occurred (HIV incidence, 0.9/100 person-years); TFV-DP was not detected at any visit. Conclusions: A gender-diverse sample of sex workers in Uganda used HIVST but not daily oral PrEP for HIV protection. Alternate approaches to promote PrEP use, including long-acting formulations, should be considered in this population.

19 May 2020 in Diagnostics
Verified
Journal Article
Open access
PDF file
MBMichelle Ann Bulterys
Michelle Ann Bulterys
AMAndrew Mujugira
Andrew Mujugira
ANAgnes Nakyanzi
Agnes Nakyanzi
MNMiriam Nampala
Miriam Nampala
GTGeoffrey Taasi
Geoffrey Taasi
MSMonisha Sharma
Monisha Sharma
Background: Secondary distribution of HIV self-testing kits (HIVST) to pregnant women attending antenatal care (ANC) clinics to give to their male partners is a promising strategy to increase testing coverage among men, but its costs are unknown. Methods: We conducted micro-costing of a trial evaluating secondary distribution of HIVST on pregnant women living with HIV (PWLHIV) in an ANC in Kampala, Uganda. Costs (2019 USD) were collected from program budgets, expenditure records, time and motion observations, and staff interviews and estimated for three scenarios: as-studied, reflecting full costs of the research intervention, Ministry of Health (MOH) implementation, reflecting the research intervention if implemented by the MOH, and MOH roll-out, the current strategy being used to roll out HIVST distribution. Results: In the as-studied scenario, cost of HIVST provision was $13.96/PWLHIV reached, and $11.89 and $10.55 per HIV-positive and HIV-negative male partner, respectively, who linked to a clinic for facility-based testing. In the MOH implementation scenario, costs were $9.45/PWLHIV, and $7.87 and $6.99, respectively, per HIV-positive and HIV-negative male partner linking to the clinic. In the MOH roll-out scenario, the cost of HIVST provision to pregnant women regardless of HIV status was $3.70/woman, and $6.65/HIV-positive male partner. Conclusion: Secondary distribution of HIVST from pregnant women can be implemented at reasonable cost to increase testing among men in Uganda and similar settings in Africa.

28 December 2023 in Diagnostics
Verified
Journal Article
Open access
PDF file
ANAgnes Nakyanzi
Agnes Nakyanzi
FNFaith Naddunga
Faith Naddunga
MBMichelle Ann Bulterys
Michelle Ann Bulterys
AMAndrew Mujugira
Andrew Mujugira
MWMonique A. Wyatt
Monique A. Wyatt
NWNorma C. Ware
Norma C. Ware
Background: High adherence to antiretroviral therapy (ART) is critical for achieving viral suppression and preventing onward HIV transmission. ART continuation can be challenging for pregnant women living with HIV (PWLHIV), which has critical implications for risk of vertical HIV transmission. Point-of-care viral load (POC VL) testing has been associated with improved treatment and retention outcomes. We sought to explore acceptability of POC VL testing among Ugandan PWLHIV during pregnancy and postpartum. Methods: This multimethod analysis drew on quantitative and qualitative data collected between February and December 2021. Quantitatively, we used an intent-to-treat analysis to assess whether randomization to clinic-based POC VL testing during pregnancy and infant testing at delivery was associated with improved viral suppression (≤50 copies/mL) by 3 months postpartum compared to standard-of-care (SOC) VL testing through a central laboratory, adjusting for factorial randomization for the male partner testing strategy. Additionally, a subset of 22 PWLHIV in the POC VL arm participated in in-depth qualitative interviews. We inductively analyzed transcripts to develop categories representing concepts that characterized women’s perceptions of POC VL testing during pregnancy and at delivery and ways that POC VL testing may have impacted their ART adherence and viral suppression. Key themes around women’s perceptions of POC VL testing were then organized into main categories. Results: Overall, 151 PWLHIV were enrolled into the study, 77 (51%) of whom were randomized to receive POC VL testing during pregnancy and at delivery. Women reported in qualitative interviews that POC VL testing had (1) motivated their ART adherence during pregnancy and postpartum and that they felt this testing method had (2) helped them protect their infants from acquiring HIV and (3) improved their emotional wellbeing. Conclusions: POC VL testing was highly acceptable among Ugandan PWLHIV and was viewed as an important tool that women believed improved their ART adherence, gave them information necessary to protect their infants from vertical HIV acquisition, and improved their emotional wellbeing. These findings support the global scale-up of POC VL testing in settings with high HIV burden, especially for PWLHIV who may be at risk of treatment disruptions or loss to follow-up.

1 October 2024 in JAIDS Journal of Acquired Immune Deficiency Syndromes
Verified
Journal Article
Open access
AMAndrew MBChB Mujugira
Andrew MBChB Mujugira
BKBeyonce Karungi
Beyonce Karungi
ANAgnes Nakyanzi
Agnes Nakyanzi
MBMonica Bph Bagaya
Monica Bph Bagaya
RNRogers Bstat Nsubuga
Rogers Bstat Nsubuga
JHJessica E. Haberer
Jessica E. Haberer
Background: Peer-delivered HIV self-testing (HIVST) and sexually transmitted infection self-sampling (STISS) may promote adherence to oral pre-exposure prophylaxis (PrEP), but no studies have analyzed this approach among transgender women (TGW) in sub-Saharan Africa. Setting: The Peer study was a cluster randomized trial in Uganda (October 2020–July 2022; NCT04328025). Methods: Ten TGW peer groups, each with 1 TGW peer and 8 TGW, were randomized 1:1 to receive quarterly in-clinic HIV testing with PrEP refills as standard-of-care (SOC) or SOC plus monthly peer delivery of oral-fluid HIVST, STISS, and PrEP refills (intervention). Participants were followed for 12 months. The primary outcome was PrEP adherence. Results: We screened 85 TGW and enrolled 82 (41 per arm). The median age was 22 years (interquartile range [IQR] 20–24). Twelve-month retention was 88% (72/82). At the 3, 6, 9, and 12-month clinic visits, 10%, 5%, 5%, and 0% of TGW in the intervention arm had TFV-DP levels ≥700 fmol/punch, versus 7%, 15%, 7%, and 2% in the SOC arm, respectively (P = 0.18). At all visits, any detectable TFV-DP levels were significantly higher in SOC than the peer delivery group (P < 0.04). PrEP adherence was associated with sex work (incidence rate ratio 6.93; 95% CI: 2.33 to 20.60) and >10 years of schooling (incidence rate ratio 2.35; 95% CI: 1.14 to 4.84). There was a strong correlation between tenofovir detection in dried blood spots and urine (P < 0.001). No HIV seroconversions occurred. Conclusions: Peer-delivered HIVST and STISS did not increase low levels of oral PrEP adherence among TGW in Uganda. Long-acting PrEP formulations should be considered for this population.

26 June 2024 in Discover Health Systems
Verified
Journal Article
Open access
PDF file
NWNorma C. Ware
Norma C. Ware
MWMonique A. Wyatt
Monique A. Wyatt
ANAgnes Nakyanzi
Agnes Nakyanzi
FNFaith Naddunga
Faith Naddunga
EPEmily E. Pisarski
Emily E. Pisarski
CCConnie L. Celum
Connie L. Celum
Introduction: Point of care viral load (POC VL) testing improves viral suppression and retention in HIV care, and is increasingly being integrated into routine health services for African pregnant women living with HIV. We examined processes of implementing POC VL testing in antenatal care and at delivery for Ugandan mothers living with HIV as part of a pilot randomized trial (Clinical Trial Number: NCT05092997). Methods: We conducted individual qualitative interviews with 12 clinical and research staff who implemented POC VL testing and 22 mothers who received POC VL testing using the Xpert® HIV-1 Viral Load Assay (Cepheid Inc., Sunnyvale, CA, USA). An inductive, content analytic approach was used to examine the interview transcripts. The analysis addressed the question: How did a group of Ugandan health care providers approach the process of implementing POC VL testing in antenatal care and at delivery for mothers living with HIV? Results: The analysis yielded three themes. (1) Staff created an efficient system of communication and then relied on that system to coordinate testing procedures. (2) They also found ways of increasing the speed and efficiency of the testing process. (3) They adopted a “mother-centered” approach to implementation, prioritizing the needs, preferences, and well-being of women in planning and carrying out testing procedures. Conclusion: As POC VL testing becomes more widely used across high HIV burden settings, understanding how implementers approach the implementation process and what they do to make an intervention successful will be an important part of evaluating feasibility. Clinical Trial Number: NCT05092997.