Predictive analytics for personalized healthcare

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Predictive analytics for personalized healthcare

  1. 1. Predictive Analytics for Personalized Health Care Zhaohui (John) Cai, MD, PhD Biomedical Informatics Director, AstraZeneca Big Data and Analytics for Pharma Philadelphia, PA June 12, 2013
  2. 2. Disclaimer This presentation represents my personal views of how predictive analytics can help with personalized health care. It does not constitute any positions of AstraZeneca or any other organizations
  3. 3. Presentation Outline • Introduction - Personalized Health Care (PHC) and Personalized Medicine (PM) - Comparative Effectiveness Research (CER) and PHC • Big data and analytics for PHC • Predictive learning for PHC in drug development – an internal approach and example • Proposed personalized CER – challenges of big data and analytics 3 Author | 00 Month Year Set area descriptor | Sub level 1
  4. 4. Personalized Medicine or Personalized Healthcare Personalized Medicine • Based on the recognition that unprecedented types of information will be obtainable from genetic, genomic, proteomic, imaging technologies, etc, which will help us further refine known diseases into new categories • Managing a patient's health based on the individual patient's specific characteristics (usually a new molecular diagnostic test) vs. “standards of care” Personalized Healthcare (PHC) • PHC is to focus on therapies to deliver superior outcomes to individual patients • PHC is to improve outcomes that matter to patients and all other stakeholders, and reduce the current costs (i.e. with comparative effectiveness) by • Patient selection • Improved dosing • Alternative therapy • Improved care pathway 4 4
  5. 5. CER The definition of CER proposed by the Congressional Budget Office: “An analysis of comparative effectiveness is simply a rigorous evaluation of the impact of different treatment options that are available for treating a given medical condition for a particular set of patients.” For more definitions of CER, see the IOM report on Initial National Priorities for Comparative Effectiveness Research 5
  6. 6. CER and Personalized Healthcare (PHC) • A tension between CER and PHC can be created when pressure is placed on CER to conform to the prevailing RCT model • Concerns have been raised that CER will not take into consideration individual patient differences and may impede the development and adoption of PHC • CER studies can include a wide range of patient populations common to all healthcare provider environments • Taking advantage of a variety of epidemiological and informatics research methods can help non-randomized CER studies address PHC concepts 6
  7. 7. Clinical (EHR, RCT) data Genomic research data Integrated genomic and phenotypic data repository Translational research for • Diagnostic discovery • Drug-test codevelopment Personalized medicine A Common Vision for Personalized Medicine Examples: Her-2 variants in breast cancer therapy, K-RAS for colon cancer therapy, etc. 7 7
  8. 8. A Vision of Big Data and Analytics for Personalized Health Care Genomic data Integrated healthcare data Healthcare cost (insurance claims) data 8 Nonhealthcare data Predictive Learning and CER • Patient selection tools • New dosing regiments • New care pathways Decision support for clinicians Decision support for payers Personalized healthcare Clinical (RCT, EHR, PHR/P RO, Registry, medi cal device) data
  9. 9. Predictive Learning: Identify Responders Early in Treatment Course Prediction Subgroup 1 (predicted nonresponders at baseline) Subgroup 2 (predicted nonresponders at early time points ) Drop and alternative treatment Baseline Prediction 9 Prediction Treatment period I Baseline Prediction Subgroup 1 (predicted responders) Prediction algorithm based on biomarker(s) and/or simply clinical disease activity score(s) Discontinue Prediction Treatment period I Baseline Treatment Period 2 Continue Outcome Measure
  10. 10. • Question: Can we predict responders early, and use the predictions in clinical practice? • Data & Method: model Phase II data using ~30 clinical variables to identify an early predictor of individual response at 6 months, using Random Forests models • Result: A combination of 4 clinical variables are predictive at month 1 to identify responders at month 6 with close to 80% accuracy • Benefit: Clinical Decision Tool for patient selection that may double response rate identified, to be validated using phase III and real world data (subgroup analysis) Accuracies of early predictions Internal Example: Predictive Learning for PHC Clinical Decision Tool Predicting month 6 endpoint 1 Predicting month 6 endpoint 2 Time of Prediction 10
  11. 11. Current PHC Strategy in Drug Development: drug-test co-development Which patients will benefit most from the therapy? In vitro/vivo studies Data/literature mining Preclinical/ Phases 1 & 2a Candidate biomarker(s) (predictive learning) Hypothesis & initial modeling Explore Validated biomarker(s) (subgroup analysis) Phase 2b Design and analysis Marker based design (subgroup analysis) Phase 3 Design and analysis Outcome (a PHC product) 11 Confirm
  12. 12. Proposed Personalized Comparative Effectiveness Research (PCER) in Drug Development Who will benefit most from treatment A (e.g. candidate drug) and who will benefit most from treatment B (e.g. standard of care)? Real World Data In vitro/vivo studies Data/literature mining Preclinical/ Phases 1 & 2a Candidate biomarker(s) (predictive learning) Hypothesis & initial modeling Explore Validated biomarker(s) (subgroup analysis) Phase 2b Design and analysis Marker based design (subgroup analysis) Phase 3 Design and analysis Confirm Observational CER Predictive learning Explore Conform Clinical /payer decision support 12 Outcome (a PHC product)
  13. 13. Personalized Comparative Effectiveness Research (PCER) for Healthcare Decisions Search for similar patients A real patient Personalized healthcare Retrospective real-world database A cohort of similar, previously treated patients Current big data challenge Different outcomes from different treatment pathways Diagnosis Predictive learning Drug A Drug B Outcome Drug B CER study (subgroup analysis) 13 Decision point 2 Decision point 1 Outcome Drug A Next big analytics challenge
  14. 14. Achieving Real World Personalized Healthcare • “Drug A is better than drug B for disease X” type of general comparative effectiveness evidence may not be applicable to individual patient care Genomic data Integrated healthcare data Healthcare cost (insurance claims) data 14 Nonhealth care data Personalized CER Drug-test codevelopment Decision support for clinicians Decision support for payers Decision support for patients Personalized healthcare Clinical (RCT, EHR, PHR/ PRO, Registry, m edical device) data • PCER will answer “to what patient subgroup, what disease stage, what treatment pathway, and where in the treatment pathway, a comparative effectiveness evidence is applicable”
  15. 15. Thank you & Questions? 15

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