Olivia Dong

Ms. Olivia Dong

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

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

Representative Publications

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19 September 2018 in BMJ Nutrition, Prevention & Health
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Journal Article
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ODOlivia Dong
Olivia Dong
Precision medicine has the potential to improve current standard of care for patients, especially in the cardiovascular field. Better prevention and treatment of cardiovascular disease (CVD) remains a public health concern globally as the disease affects a considerable proportion of populations in many countries.1 CVD progression can be in part prevented with effective management of blood pressure through nutritional, pharmacological and lifestyle approaches.2 3 Nutritional approaches to reduce blood pressure has in part focused on sodium intake as part of a nutritional intervention plan, although this established approach may be more effective for individuals who are salt sensitive, a phenotype that is currently not considered clinically. Blood pressure for individuals who are salt sensitive will change depending on the level of sodium intake, while those who are salt resistant will not see a change in their blood pressure even when sodium intake varies. This difference in response to sodium and its associated effect on blood pressure makes it important to be able to stratify the population based on this response to be able to effectively guide dietary intake. Nutrigenetics, which incorporates genetic markers in dietary intervention approaches, is one promising way this salt sensitivity phenotype can be identified among individuals. In addition, for those receiving antihypertensive agents to control blood pressure, using genetic markers to help with drug selection, or using a pharmacogenetic approach, may be a better way of achieving improved efficacy, lower adverse events and lead to more efficient use of limited healthcare resources. Current methods to manage blood pressure and sodium intake and the emerging role of precision medicine will be explored. More specifically, the use of genetics in nutritional and pharmacological interventions, or pharmaconutrigenetics, to guide sodium intake and manage blood pressure will be discussed as a way to better prevent and manage CVD progression.

6 January 2021 in Pharmacogenomics
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Journal Article
Closed access
ODOlivia Dong
Olivia Dong
JBJill Bates
Jill Bates
CCCatherine Chanfreau-Coffinier
Catherine Chanfreau-Coffinier
MNMichael Naglich
Michael Naglich
MKMichael J Kelley
Michael J Kelley
DVDeepak Voora
Deepak Voora
In 2019, the Veterans Affairs (VA), the largest integrated US healthcare system, started the Pharmacogenomic Testing for Veterans (PHASER) clinical program that provides multi-gene pharmacogenomic ... Tweetable abstract Launched in March 2019 as a partnership between the VA and Sanford Health, the VA PHASER program is a national clinical program that offers free, multi-gene pharmacogenomic (PGx)...

23 October 2018 in Pharmacy
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Journal Article
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AFAmber Frick
Amber Frick
CBCristina Benton
Cristina Benton
OSOscar Suzuki
Oscar Suzuki
ODOlivia Dong
Olivia Dong
RHRachel Howard
Rachel Howard
TWTim Wiltshire
Tim Wiltshire
Pharmacogenomics provides a personalized approach to pharmacotherapy by using genetic information to guide drug dosing and selection. However, partly due to lack of education, pharmacogenomic testing has not been fully implemented in clinical practice. With pharmacotherapy training and patient accessibility, pharmacists are ideally suited to apply pharmacogenomics to patient care. Student pharmacists (n = 222) participated in an educational intervention that included voluntary personal genotyping using 23andMe. Of these, 31% of students completed both pre- and post-educational interventions to evaluate their attitudes and confidence towards the use of pharmacogenomics data in clinical decision making, and 55% of this paired subset obtained personal genotyping. McNemar’s test and the Wilcoxon signed-rank test were used to analyze responses. Following the educational intervention, students regardless of genotyping were more likely to recommend personal genotyping (36% post-educational intervention versus 19% pre-educational intervention, p = 0.0032), more confident in using pharmacogenomics in the management of drug therapy (51% post-educational intervention versus 29% pre-educational intervention, p = 0.0045), and more likely to believe that personalized genomics would have an important role in their future pharmacy career (90% post-educational intervention versus 51% pre-educational intervention, p = 0.0072) compared to before receiving the educational intervention. This educational intervention positively influenced students’ attitudes and confidence regarding pharmacogenomics in the clinical setting. Future studies will examine the use of next-generation sequencing assays that selectively examine pharmacogenes in the education of student pharmacists.

29 April 2024 in PharmacoEconomics
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Journal Article
Open access
PDF file
WHWilliam L. Herring
William L. Herring
MGMeghan E. Gallagher
Meghan E. Gallagher
NSNirmish Shah
Nirmish Shah
KMKc Morse
Kc Morse
DMDeirdre Mladsi
Deirdre Mladsi
BABiree Andemariam
Biree Andemariam
Background and Objective Gene therapies for sickle cell disease (SCD) may offer meaningful benefits for patients and society. This study evaluated the cost-effectiveness of lovotibeglogene autotemcel (lovo-cel), a one-time gene therapy administered via autologous hematopoietic stem cell transplantation, compared with common care for patients in the United States (US) with SCD aged ≥ 12 years with ≥ 4 vaso-occlusive events (VOEs) in the past 24 months. Methods We developed a patient-level simulation model accounting for lovo-cel and SCD-related events, complications, and mortality over a lifetime time horizon. The pivotal phase 1/2 HGB-206 clinical trial (NCT02140554) served as the basis for lovo-cel efficacy and safety. Cost, quality-of-life, and other clinical data were sourced from HGB-206 data and the literature. Analyses were conducted from US societal and third-party payer perspectives. Uncertainty was assessed through probabilistic sensitivity analysis and extensive scenario analyses. Results Patients treated with lovo-cel were predicted to survive 23.84 years longer on average (standard deviation [SD], 12.80) versus common care (life expectancy, 62.24 versus 38.40 years), with associated discounted patient quality-adjusted life-year (QALY) gains of 10.20 (SD, 4.10) and direct costs avoided of $1,329,201 (SD, $1,346,446) per patient. Predicted societal benefits included discounted caregiver QALY losses avoided of 1.19 (SD, 1.38) and indirect costs avoided of $540,416 (SD, $262,353) per patient. Including lovo-cel costs ($3,282,009 [SD, $29,690] per patient) resulted in incremental cost-effectiveness ratios of $191,519 and $124,051 per QALY gained from third-party payer and societal perspectives, respectively. In scenario analyses, the predicted cost-effectiveness of lovo-cel also was sensitive to baseline age and VOE frequency and to the proportion of patients achieving and maintaining complete resolution of VOEs. Conclusions Our analysis of lovo-cel gene therapy compared with common care for patients in the US with SCD with recurrent VOEs estimated meaningful improvements in survival, quality of life, and other clinical outcomes accompanied by increased overall costs for the health care system and for broader society. The predicted economic value of lovo-cel gene therapy was influenced by uncertainty in long-term clinical effects and by positive spillover effects on patient productivity and caregiver burden.

2 June 2022 in European Heart Journal - Quality of Care and Clinical Outcomes
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Journal Article
Closed access
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ODOlivia Dong
Olivia Dong
KFKevin A Friede
Kevin A Friede
CCCatherine Chanfreau-Coffinier
Catherine Chanfreau-Coffinier
Deepak VooraDeepak Voora
Deepak Voora
CYP2C19-guided P2Y12 inhibitor selection can reduce cardiovascular (CV) events and bleeding in patients with acute coronary syndromes (ACSs) post-percutaneous coronary intervention (PCI). The 12-month cost-effectiveness of CYP2C19-guided P2Y12 inhibitor selection for Veterans post-ACS/PCI was evaluated from the Veterans Health Administration's (VHA) perspective. Using average annualized PCI volumes and P2Y12 inhibitor use from VA data, a decision-analytic model simulated CYP2C19 testing vs. no testing outcomes in 2800 hypothetical Veterans receiving PY212 inhibitor for 12 months post-ACS/PCI (74% clopidogrel, 5% prasugrel, and 21% ticagrelor use at baseline without testing). CYP2C19 loss-of-function (LOF) carrier prevalence was 28%. Model inputs were from studies (bleeding/ischaemic events, CYP2C19-guided therapy effect, health state utilities, CYP2C19 LOF carrier prevalence) and VHA administrative data (costs of events, drugs, CYP2C19 testing; PCI volumes, and P2Y12 inhibitor prescriptions). The primary outcome was cost (2020 US|${\$}$|⁠) per quality-adjusted life year (QALY) gained. Base-case scenarios, probabilistic sensitivity analyses, and scenario analyses were completed. CYP2C19-guided therapy resulted in 496 (24%) escalations (clopidogrel to prasugrel/ticagrelor) and 465 (65%) de-escalations (prasugrel/ticagrelor to clopidogrel). CYP2C19 testing averted 1 stroke, 27 myocardial infarctions, 8 CV-related deaths, and caused 3 bleeds. CYP2C19 testing (vs. no testing) was dominant in the base-case scenario (0.0027 QALYs gained, |${\$}$|527 saved/person) and in 97.1% of simulations, making it cost-effective and high-value. In scenario analyses, de-escalation in conjunction with escalation is required for CYP2C19 testing to be cost-effective and high-value. In Veterans post-ACS/PCI, CYP2C19-guided P2Y12 inhibitor selection can improve CV outcomes and lower costs for the VHA within 12 months of implementation.

27 October 2021 in Pharmacogenomics
Verified
Journal Article
Closed access
ODOlivia Dong
Olivia Dong
MRMegan C Roberts
Megan C Roberts
RWR Ryanne Wu
R Ryanne Wu
CVCorrine I Voils
Corrine I Voils
NSNina Sperber
Nina Sperber
DVDeepak Voora
Deepak Voora
Aim: The first Plan-Do-Study-Act cycle for the Veterans Affairs Pharmacogenomic Testing for Veterans pharmacogenomic clinical testing program is described. Materials & methods: Surveys evaluating i...