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result(s) for
"Godfrey, Catherine"
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Levels of HIV-1 persistence on antiretroviral therapy are not associated with markers of inflammation or activation
by
Rinaldo, Charles R.
,
Gandhi, Rajesh T.
,
Macatangay, Bernard J.
in
Acquired immune deficiency syndrome
,
Activation analysis
,
Adult
2017
Antiretroviral therapy (ART) reduces levels of HIV-1 and immune activation but both can persist despite clinically effective ART. The relationships among pre-ART and on-ART levels of HIV-1 and activation are incompletely understood, in part because prior studies have been small or cross-sectional. To address these limitations, we evaluated measures of HIV-1 persistence, inflammation, T cell activation and T cell cycling in a longitudinal cohort of 101 participants who initiated ART and had well-documented sustained suppression of plasma viremia for a median of 7 years. During the first 4 years following ART initiation, HIV-1 DNA declined by 15-fold (93%) whereas cell-associated HIV-1 RNA (CA-RNA) fell 525-fold (>99%). Thereafter, HIV-1 DNA levels continued to decline slowly (5% per year) with a half-life of 13 years. Participants who had higher HIV-1 DNA and CA-RNA before starting treatment had higher levels while on ART, despite suppression of plasma viremia for many years. Markers of inflammation and T cell activation were associated with plasma HIV-1 RNA levels before ART was initiated but there were no consistent associations between these markers and HIV-1 DNA or CA-RNA during long-term ART, suggesting that HIV-1 persistence is not driving or driven by inflammation or activation. Higher levels of inflammation, T cell activation and cycling before ART were associated with higher levels during ART, indicating that immunologic events that occurred well before ART initiation had long-lasting effects despite sustained virologic suppression. These findings should stimulate studies of viral and host factors that affect virologic, inflammatory and immunologic set points prior to ART initiation and should inform the design of strategies to reduce HIV-1 reservoirs and dampen immune activation that persists despite ART.
Journal Article
Early versus Standard Antiretroviral Therapy for HIV-Infected Adults in Haiti
by
Jean Juste, Marc Antoine
,
Apollon, Sandra
,
Godfrey, Catherine
in
Acquired immune deficiency syndrome
,
Adult
,
AIDS
2010
The optimal time to initiate antiretroviral therapy in HIV-infected adults, especially in resource-poor areas, is debated. In this study of HIV-infected adults in Haiti, the investigators found that when antiretroviral therapy was initiated when the CD4 count was greater than 200 and less than 350 per cubic millimeter, as compared with waiting until the CD4 count fell to 200 per cubic millimeter or less, the rate of death was decreased, as was the rate of incident tuberculosis.
Investigators found that when antiretroviral therapy was initiated when the CD4 count was greater than 200 and less than 350 per cubic millimeter, as compared with waiting until the CD4 count fell to 200 per cubic millimeter or less, the rates of death and of incident tuberculosis were decreased.
The optimal time to initiate antiretroviral therapy in adults who are infected with human immunodeficiency virus (HIV) remains uncertain. There have been no randomized trials to determine the optimal time to start antiretroviral therapy in adults who have CD4+ T-cell counts that are greater than 200 and less than 350 per cubic millimeter. Furthermore, there are few data on the optimal time to start antiretroviral therapy in persons who live in locations with limited resources, where high rates of tuberculosis, malnutrition, and coinfection with tropical diseases may alter the natural history of HIV disease and the optimal time to initiate . . .
Journal Article
Prioritizing Mental Health in the HIV/AIDS Response in Africa
by
Godfrey, Catherine
,
Nkengasong, John
in
Acquired immune deficiency syndrome
,
Acquired Immunodeficiency Syndrome - epidemiology
,
Acquired Immunodeficiency Syndrome - prevention & control
2023
Mental Health in the HIV/AIDS Response in AfricaThe association among mental health conditions, poor engagement in HIV treatment, and poor HIV-related outcomes is well documented. But mental health is often neglected in HIV care.
Journal Article
Addressing advanced HIV disease and mortality in global HIV programming
by
Sean Cavanaugh, J.
,
Oboho, Ikwo
,
Godfrey, Catherine
in
Acquired immune deficiency syndrome
,
Advanced HIV disease
,
AIDS
2020
Introduction
The US President’s Emergency Plan for AIDS Relief (PEPFAR) was launched to increase access to antiretroviral treatment (ART) among people living with HIV (PLHIV) and to prevent new HIV infections globally. As new infections have decreased in many PEPFAR-supported countries, PEPFAR is increasingly focusing on understanding and decreasing mortality among PLHIV, specifically by addressing advanced HIV disease (AHD) and its attendant opportunistic infections (OIs). Several developments in identifying AHD, in preventing, diagnosing, and treating selected OIs, and in PEPFAR’s support for mortality surveillance make this an opportune moment for PEPFAR to address HIV-related mortality.
Discussion
AHD upon diagnosis or re-engagement in HIV care is not uncommon, and it substantially increases risk of death from OIs. The World Health Organization provides evidence-based guidelines for a package of interventions for preventing, diagnosing, and treating common OIs, including tuberculosis (TB), cryptococcal meningitis, and severe bacterial infections. PEPFAR facilitates implementation of these guidelines. To identify PLHIV with low CD4, PEPFAR plans to support expanded access to CD4 testing, including a point-of-care assay that differentiates CD4 cell count as a binary of greater than or less than 200 cells/µL. To prevent AHD-related mortality, PEPFAR supports rapid ART initiation with integrase inhibitor–based regimens and implementation and documentation of TB preventive treatment. To diagnose selected OIs, PEPFAR is implementing urine lateral flow lipoarabinomannan use to identify TB among PLHIV who have a CD4 cell count < 200 cells/µL. To treat selected OIs, PEPFAR has focused on improving patient-centered care in TB/HIV co-infection services and scaling up implementation of new drug regimens for cryptococcal meningitis. To better understand mortality, PEPFAR has introduced an indicator, TX_ML, to routinely and systematically categorize outcomes, including deaths, among PLHIV on ART.
Conclusions
PEPFAR is increasing its efforts to identify AHD; to prevent, diagnose, and treat OIs; and to track mortality in its programs. These ongoing efforts, done in collaboration with other stakeholders, seek to decrease mortality among PLHIV.
Journal Article
Abacavir/Lamivudine Versus Tenofovir DF/Emtricitabine as Part of Combination Regimens for Initial Treatment of HIV: Final Results
by
Murphy, Robert L.
,
Tierney, Camlin
,
Tashima, Karen
in
Adenine - administration & dosage
,
Adenine - analogs & derivatives
,
Adult
2011
Background. AIDS Clinical Trials Group A5202 compared blinded abacavir/lamivudine (ABC/3TC) to tenofovir DF/emtricitabine (TDF/FTC) with efavirenz (EFV) or atazanavir/ritonavir (ATV/r) in human immunodeficiency virus (HIV)-infected treatment-naive patients, stratified by screening HIV RNA (< or ≥10⁵ copies/mL). Due to higher virologie failure with ABC/3TC in the high HIV RNA stratum, blinded treatment was stopped in this group, but study follow-up continued for all patients. Methods. Primary endpoints were times to virologie failure, regimen modification, and safety event. Results. In the low HIV RNA stratum, time to virologie failure was similar for ABC/3TC vs TDF/FTC with ATV/r (hazard ratio [HR] 1.25, 95% confidence interval [CI] 0.76, 2.05) or EFV (HR 1.23, 95% CI 0.77, 1.96), with significantly shorter times to regimen modification for ABC/3TC with EFV or ATV/r and to safety events with EFV. Prior to stopping blinded treatment in the high stratum, higher virologie failure rates were seen with ABC/3TC with EFV (HR 2.46, 95% CI 1.20, 5.05) or ATV/r (HR 2.22, 95% CI 1.19, 4.14). Conclusions. In the low HIV RNA stratum, times to virologie failure for ABC/3TC or TDF/FTC were not different with EFV or ATV/r. In the high stratum, virologie failure rate was significantly higher for ABC/3TC than for TDF/FTC when given with either EFV or ATV/r.
Journal Article
Barriers to a cure for HIV in women
by
Barr, Liz
,
Gianella, Sara
,
Tsibris, Athe
in
Acquired immune deficiency syndrome
,
AIDS
,
Analysis
2016
Introduction
Distinct biological factors exist that affect the natural history of HIV and the host immune response between women and men. These differences must be addressed to permit the optimal design of effective HIV eradication strategies for much of the HIV‐positive population.
Methods and results
Here, we review the literature on sex‐based differences in HIV pathogenesis and natural history in tissues and anatomic compartments, HIV latency and transcriptional activity, and host immunity including the role of sex hormones. We then outline the potential effects of these differences on HIV persistence, and on the safety and efficacy of HIV eradication and curative interventions. Finally, we discuss the next steps necessary to elucidate these factors to achieve a cure for HIV, taking in account the complex ethical issues and the regulatory landscape in the hopes of stimulating further research and awareness in these areas.
Conclusions
Targeted enrolment of women in clinical trials and careful sex‐based analysis will be crucial to gain further insights into sex‐based differences in HIV persistence and to design sex‐specific approaches to HIV eradication, if required.
Journal Article
Assessing sex differences in viral load suppression and reported deaths using routinely collected program data from PEPFAR-supported countries in sub-Saharan Africa
by
Fernandez, Danielle
,
Oboho, Ikwo
,
Vasireddy, Vamsi
in
Acquired immune deficiency syndrome
,
AIDS
,
Analysis
2023
Background
In sub-Saharan Africa, more women than men access HIV testing and treatment and may have better viral load suppression (VLS). We utilized routinely reported aggregated HIV program data from 21 sub-Saharan African countries to examine sex differences in VLS and death rates within antiretroviral therapy (ART) programs supported by the United States President's Emergency Plan for AIDS Relief (PEPFAR).
Methods
We included VLS and reported death data for persons aged 15 + years on ART from October–December 2020 disaggregated by sex and age for each subnational unit (SNU). We used linear mixed-model regression to estimate VLS proportion and negative binomial mixed-model regression to estimate the rates of death and death plus interruptions in treatment (IIT). All models were weighted for SNU-level ART population size and adjusted for sex, age, HIV/tuberculosis coinfection, country, and SNU; models for reported deaths and deaths plus IIT were also adjusted for SNU-level VLS.
Results
Mean VLS proportion was higher among women than men (93.0% vs. 92.0%,
p
-value < 0.0001) and 50 + than 15–49 age group (93.7% vs. 91.2%,
p
-value < 0.0001). The mean rate of reported deaths was higher among men than women (2.37 vs. 1.51 per 1000 persons,
p
-value < 0.0001) and 50 + than 15–49 age group (2.39 vs. 1.50 per 1000,
p
-value < 0.0001); the mean rate of reported deaths plus IIT was higher among men (30.1 in men vs. 26.0 in women per 1000,
p
-value < 0.0001) and higher among 15–49 than 50 + age group (34.7 vs. 22.6 per 1000,
p
-value < 0.0001).
Conclusions
The mean rate of reported deaths was higher among men in most models despite adjusting for VLS. Further exploration into differences in care-seeking behaviors; coverage of screening, prophylaxis, and/or treatment of opportunistic infections; and more extensive testing options for men to include CD4 is recommended.
Journal Article
Protecting healthcare workers and patients during the COVID-19 pandemic: a comparison of baseline and follow-up infection prevention and control needs in Nigerian military healthcare facilities delivering HIV services
by
Agaba, Patricia A.
,
Lee, Elizabeth H.
,
Desai, Priyanka
in
COVID-19
,
Disease prevention
,
Health Administration
2023
Background
Protecting the HIV health workforce is critical for continuity of services for people living with HIV, particularly during a pandemic. Early in the COVID-19 pandemic, the Nigerian Ministry of Defence, in partnership with the US Military HIV Research Program, took steps to improve infection prevention and control (IPC) practices among staff working in select PEPFAR-supported Nigerian military health facilities.
Methods
We identified a set of IPC activities a priori for implementation at four Nigerian military hospitals in HIV and related departments in early 2021, including continuous medical masking, physical distancing, placement of additional hand washing stations and hand sanitizers throughout facilities, and training. We fine-tuned planned intervention activities through a baseline needs assessment conducted in December 2020 that covered eight IPC components: ‘IPC program structure, funding and leadership engagement’; ‘IPC policies, guidelines and standard operating procedures (SOPs)’; ‘infrastructure’; ‘triage and screening’; ‘training, knowledge and practice’; ‘personal protective equipment (PPE) materials, availability and adequacy’; ‘biosafety and waste management’; and ‘monitoring and remediation’ prior to implementation. Baseline results were compared with those of a follow up assessment administered in August 2021, following intervention implementation.
Results
IPC readiness remained high at both baseline and follow-up assessments for ‘IPC guidelines, policies, and SOPs’ (96.7%). The components ‘infrastructure’ and ‘monitoring and remediation’, which needed improvement at baseline, saw modest improvements at follow-up, by 2% and 7.5%, respectively. At follow-up, declines from high scoring at baseline were seen in ‘IPC program structure, funding and leadership engagement’, ‘training, knowledge and practice’, and ‘biosafety and waste management’. ‘PPE materials availability and adequacy’ improved to 88.9% at follow-up. Although unidirectional client flow was newly implemented, the score for ‘triage and screening’ did not change from baseline to follow-up (73%).
Conclusion
Variability in IPC component readiness and across facilities highlights the importance of building resilience and employing a quality improvement approach to IPC that includes regular monitoring, re-assessment and re-training at set intervals. Results can be used to encourage solutions-oriented dialogue between staff and leadership, determine needs and implement action plans to protect staff and people with HIV.
Journal Article
Extensive cervical lesion and treatment outcomes in women with HIV/HPV co-infection
2024
Background
Cervical cancer is a common cancer worldwide, with > 85% of deaths occurring in Lower- and Middle-Income Countries where resources for screening programs are limited. Women living with HIV (WLHIV) are at increased risk. HPV test-and-treat is a screening strategy where women with HPV are offered ablative treatment of the cervix to reduce the risk of invasive cancer. WLHIV tend to have more extensive cervical lesions, necessitating more specialised surgical treatments.
Method
ACTG A5282 was a randomised, open-label, Phase 2 trial conducted in seven countries that compared a cytology-based screening strategy to HPV test-and-treat for cervical cancer prevention in WLHIV. Women with cervical lesions inappropriate for ablative treatment were assigned to Arm C and underwent colposcopy and directed biopsies. Loop electro-excision procedure was performed if high-grade lesions (bHSIL) were present on cervical biopsies. Women were followed 26 weeks later for repeat evaluations. The Clopper-Pearson exact method was used to construct the 95% confidence interval for the proportion of WLHIV with lesions inappropriate for cryotherapy. Logistic regression models were used to assess the factors associated with these lesions.
Results
Of 1046 women screened, 156 (88%) were Black/Non-Hispanic, with a median age of 36 years; 80% were on ART, and 73% had an HIV-1 RNA < 200 copies/mL. On cervical colposcopy, 17% (179/1046, 95% CI 14.9–19.4%) had cervical lesions inappropriate for cervical ablation. Among 428 (44%) women with High-risk HPV (hrHPV) detected, 112 (26%, 95% CI 22.2%, 30.5%) had cervical lesions inappropriate for ablative therapy. hrHPV was found more commonly among women having lesions inappropriate for ablative therapy as compared to lesions appropriate for ablative therapy (70% vs 54%, p < .001). Among 128 women with extensive cervical lesions undergoing colposcopic biopsies, 43 (34%) had bHSIL detected. Among women undergoing LEEP treatment of bHSIL, 24% had bHSIL detected 26 weeks later.
Conclusion
Cervical lesions inappropriate for ablative therapy were common among WLHIV. This has implications for cervical cancer programs as these lesions can only be optimally treated with surgical therapies such as loop electroexcision procedures, and the capacity for this procedure should be increased to maximise cervical cancer prevention outcomes.
Journal Article