Nita Limdi, Pharm.D, PhD has built a successful research program focused on antithrombotic therapy pharmacogenomics encompassing both observational and clinical trial designs. Her scientific career goals are to comprehensively understand the clinical, environmental and genetic factors that influence variability in antithrombotic response and to use this information to personalize antithrombotic treatment, especially in patients with multiple comorbidities. The proposed award would enable her to continue mentoring while augmenting her research, specifically incorporating aims built to address key knowledge gaps regarding the oral anticoagulant and antiplatelet therapy. The new research proposed herein is builds on ongoing work to create unique and much needed patient oriented research (POR) training opportunities within the evolving landscape of oral antithrombotic therapy and integrates pharmacogenomics and implementation of precision medicine. The candidate's NHLBI R01 grant along with the three new projects will form the basis for the mentee training. Each project is led by a mentee. PROJECT1 will elucidate the influence of heart failure as defined as left ventricular ejection fraction (LVEF <40%) on warfarin response. PROJECT 2: will evaluate the influence of clinical and genetic (candidate genes) on Dabigatran (DBG) related hemorrhage and build clinical prediction rules to personalize the prediction of hemorrhage among DBG users. PROJECT 3: will evaluate the effectiveness of genotype-guided antiplatelet therapy (GGAT) on complications following percutaneous coronary intervention and assess its clinical utility and economic value. Mentorship aims expanding the POR training opportunities for MD, Pharm.D, and PhD trainees. Mentees will lead the new projects, conduct analysis and publish original research. They will leverage this to propose new research as part of their NIH- K23 applications. In the strongly supportive and collaborative environment of UAB, this award will ensure Dr. Limdi continues to grow her research program, and build capacity in POR by mentoring junior investigators to build their own careers. The breadth and depth of the multiple institutional programs, UAB's CTSA and her leadership in UAB's Personalized Medicine Institute will provide the resources and the foundation to advance precision cardiovascular medicine.

Public Health Relevance

Clinical, genetic and environmental factors that predict individual variability in antithrombotic response can help identify patients who stand to benefit or be harmed by these drugs. However, the integration of these predictors into clinical decision making requires a paradigm shift based on evidence of their benefit vs. risk (clinical utility) and value (cost-effectiveness). To facilitate this paradigm shift we propose to incorporate genetic information with environmental and clinical predictors to help develop patient-focused and population-based preventive and therapeutic guidelines for ?Personalized Antithrombotic Therapy (PAT).?

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Midcareer Investigator Award in Patient-Oriented Research (K24)
Project #
5K24HL133373-03
Application #
9536945
Study Section
NHLBI Mentored Clinical and Basic Science Review Committee (MCBS)
Program Officer
Chang, Henry
Project Start
2016-08-01
Project End
2021-07-30
Budget Start
2018-08-01
Budget End
2019-07-31
Support Year
3
Fiscal Year
2018
Total Cost
Indirect Cost
Name
University of Alabama Birmingham
Department
Neurology
Type
Schools of Medicine
DUNS #
063690705
City
Birmingham
State
AL
Country
United States
Zip Code
35294
Shendre, Aditi; Parmar, Gaurav M; Dillon, Chrisly et al. (2018) Influence of Age on Warfarin Dose, Anticoagulation Control, and Risk of Hemorrhage. Pharmacotherapy 38:588-596
Empey, Philip E; Stevenson, James M; Tuteja, Sony et al. (2018) Multisite Investigation of Strategies for the Implementation of CYP2C19 Genotype-Guided Antiplatelet Therapy. Clin Pharmacol Ther 104:664-674
Cavallari, Larisa H; Lee, Craig R; Beitelshees, Amber L et al. (2018) Multisite Investigation of Outcomes With Implementation of CYP2C19 Genotype-Guided Antiplatelet Therapy After Percutaneous Coronary Intervention. JACC Cardiovasc Interv 11:181-191
Limdi, Nita A; Brown, Todd M; Shendre, Aditi et al. (2017) Quality of anticoagulation control and hemorrhage risk among African American and European American warfarin users. Pharmacogenet Genomics 27:347-355
Yanik, Megan V; Irvin, Marguerite R; Beasley, T Mark et al. (2017) Influence of Kidney Transplant Status on Warfarin Dose, Anticoagulation Control, and Risk of Hemorrhage. Pharmacotherapy 37:1366-1373
Albright, Karen C; Zhao, Hong; Blackburn, Justin et al. (2017) Racial differences in statin adherence following hospital discharge for ischemic stroke. Neurology 88:1839-1848
Liu, Nianjun; Irvin, Marguerite R; Zhi, Degui et al. (2017) Influence of common and rare genetic variation on warfarin dose among African-Americans and European-Americans using the exome array. Pharmacogenomics 18:1059-1073
Shendre, Aditi; Irvin, Marguerite R; Wiener, Howard et al. (2017) Local Ancestry and Clinical Cardiovascular Events Among African Americans From the Atherosclerosis Risk in Communities Study. J Am Heart Assoc 6:
Boehme, Amelia K; Pamboukian, Salpy V; George, James F et al. (2017) Anticoagulation Control in Patients With Ventricular Assist Devices. ASAIO J 63:759-765
O'Neal, Wesley T; Judd, Suzanne E; Limdi, Nita A et al. (2017) Differential Impact of Risk Factors in Blacks and Whites in the Development of Atrial Fibrillation: the Reasons for Geographic And Racial Differences in Stroke (REGARDS) Study. J Racial Ethn Health Disparities 4:718-724

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