Welcome to MDD

The American Statistical Association Section on Medical Devices and Diagnostics (MDD) is composed of statisticians who are interested in applying and developing statistical methods for evaluating medical and diagnostic devices. More about MDD.

Nomination for MDD Section 2017 officers

The Medical Devices and Diagnostics (MDD) section of ASA is looking for candidates to run for office, effective January 1, 2017. The elections will be held in the spring of 2016 with the regular spring ASA ballot. There are three positions to fill: Chair-Elect (Chair in 2018),Program Chair-Elect (Program Chair in 2018), ASA Council of Sections Representative (2017-19).

The Chair is responsible for holding at least two meetings during his/her term. The first is a meeting of the Executive Committee and the second is the Annual Business meeting of the Section at the JSM Meeting. In addition, usually at least 2 other committee meetings are held. In certain years, the chair will need to appoint a correspondence secretary, a communication secretary, and/or a treasurer. The chair is also encouraged to try to staff the membership and communication committee. The chair may also assist the program chair in the solicitation and organization of statistical presentations at statistical meetings and in the development of webinars. The chair will also work with the correspondence secretary to make sure the membership is apprised of all MDD activities. In addition, the chair should assist the Newsletter editor in preparing the biannual newsletter. The Program Chair is responsible for the scientific program of the Section at the JSM and contributing to other scientific meetings in the current year as supported by the executive Committee of the Section. This usually includes involvement in 3 to 4 statistical meetings each year: JSM, FDA/Advamed Statistics Workshop, and ASA Biopharmaceutical Statistics Workshop. The latter 2 are held in Washington, DC annually. This includes helping soliciting and organizing invited and contributed sessions from among the MDD membership. In addition, the program chair is also responsible for the Education and Communication Committee which will assist the program chair in organizing educational activities, including several webinars annually, for the Section. The Council of Sections representative, who is elected for 3 years, will participate in several council meetings each year, including at the Join Statistical Meetings and will report back to section on all ASA directives and activities. They should plan on going to the ASA meeting each year they are a representative.

So please consider suggesting anyone whom you think would be a good candidate for each of these positions. You could also consider nominating yourself. Please send suggestions for all three offices to the Chair of the MDD Nominating Committee, Richard Kotz at richard@stage2innovations.com, and to Zhiheng Xu at zhiheng.xu@fda.hhs.gov.

A 15-Year History of Bayesian Device Trials: A Consultant's Perspective

Scott Berry, PhD and former SIGMEDD Chair, presented the first MDD Webinar on April 9, 2015. Missed it live? The slides are still available here.

Invited Sessions sponsored by Section on Medical Devices and Diagnostics at JSM 2015

13 - Recent Developments in Bayesian Medical Device and Drug Trials.

  • Detecting and Accounting for Violations of the Constancy Assumption in Non-Inferiority Clinical Trials.
    Joe Koopmeiners, University of Minnesota; Brian Hobbs, M.D. Anderson Cancer Center.
  • Bayesian Nonparametric Models for Comparative Effectiveness.
    Gary L. Rosner, Johns Hopkins Medicine; Chenguang Wang, Johns Hopkins Medical.
  • Bayesian Analysis of Heterogeneous Treatment Effect in Patient-Centered Outcomes Research.
    Ravi Varadhan, Johns Hopkins University; Thomas A. Louis, Johns Hopkins SPH & U. S. Census Bureau; Chenguang Wang, Johns Hopkins Medical.
  • Discussant: David Draper, University of California, Santa Cruz, and eBay Research Labs.

334 - Recent Developments in Biomarker Evaluation.

  • Some statistical method in bridging efficacy studies for companion diagnostic tests.
    Xiao-Hua Zhou, University of Washington.
  • Evaluation of the programmatic performance (repeated application) of a screening test.
    Gene Anthony Pennello, Food and Drug Administration.
  • Measures to evaluate biomarkers as predictors of incident cases and connection to information theory.
    Patrick Heagerty, University of Washington; Jason Liang, University of Washington.
  • Discussant: Li Meijuan, FDA.

Topic Contributed Papers sponsored by Section on Medical Devices and Diagnostics at JSM 2015

121 - Minimizing bias in medical device trials through study design and data analysis.

  • Study Design Using Bayesian Conditional Borrowing of the Prior with Multiple Cutoffs.
    Peter Lam, Boston Scientific; Songtao Jiang, Boston Scientific; Ming-Hui Chen, University of Connecticut.
  • Sensitivity Analysis for Clinical Trials with Missing Outcome Data Using Repeated Measures - A Simulation Study Design.
    Terry Liao, Boston Scientific Corporation; Ying Yang, FDA.
  • Minimizing Bias in Observational Comparative Clinical Studies.
    Lilly Yue, FDA/CDRH.
  • Practical considerations for establishing monitoring committees in device trials for ensuring trial validity.
    Rajesh Nair, CDRH/FDA.
  • Discussant: Greg Campbell, FDA/CDRH.

405 - Moving Beyond Fixed Biomarker Trial Designs.

  • Adaptive Enrichment Designs with Population Selection Based on a Continuous Biomarker.
    Michael Rosenblum, Johns Hopkins Bloomberg School of Public Health.
  • Auto-adaptive Alpha Allocation: a strategy to mitigate risk on study assumptions.
    Yue Shentu, Merck and Co., Inc.; Cong Chen, Merck Research Labs, Merck & Co., Inc.; Lei Pang, Merck & Co.
  • The application of group sequential stopping boundaries to evaluate the effect of an experimental agent across a range of marker expression.
    Eric Holmgren, Oncomed.
  • Designing a confirmatory trial with a continuous biomarker endpoint and an undetermined threshold tested at both the interim and final.
    Adarsh Joshi, Gilead Sciences ; Jenny Zhang, Gilead Sciences; Nusrat Rabbee, Gilead Sciences; Liang Fang, Gilead Sciences.
  • The statistical issues and challenges for follow-on companion diagnostic devices.
    Meijuan Li, US Food and Drug Administration.

594 - Statistical Challenges and Novel Methodologies for Evaluating The Clinical Performance of Diagnostic Devices.

  • Study design and analysis issues for diagnostic monitoring devices.
    Bipasa Biswas, CDRH, FDA.
  • Measuring agreement in method comparison studies with repeated measurements.
    Zhiheng Xu, FDA; Meijuan Li, US Food and Drug Administration.
  • A statistical method for method comparison studies when outcomes can only assume monotone.
    Yuqing Tang, US Food and Drug Administration; Meijuan Li, US Food and Drug Administration; Jincao Wu, FDA.
  • Dynamic Placement Values: A Basis for Evaluating Prognostic Potential.
    Aasthaa Bansal, University of Washington; Patrick Heagerty, University of Washington; Paramita Saha-Chaudhuri, McGill University; Jason Liang, University of Washington.
  • Reference Interval - of the posterior distribution.
    Jeng Mah, Beckman Coulter; Mark Holland Beckman Coulter.

Regular Contributed Papers sponsored by Section on Medical Devices and Diagnostics at JSM 2015

189 - Design and analysis of pivotal studies for medical devices.

  • Considerations in using registry data to support pre-market applications of medical devices.
    Nelson Lu, FDA/CDRH; Lilly Yue, FDA/CDRH; Yunling Xu, FDA/CDRH.
  • Adaptive Sample Size Re-estimation with Fisher's Exact Test and a Promising Zone.
    Tyson Rogers, NAMSA; Scott McKane, Respicardia, Inc.
  • Considerations in Sample Size, Type I Error, and Power for 2-group Non-inferiority Study Using Farrington-Manning Method.
    Songtao Jiang, Boston Scientific; Edmund McMullen, Boston Scientific; Hong Wang, Boston Scientific Corporation; Terry Liao, Boston Scientific Corporation.
  • Analysis of Composite Endpoint with Missing Data in Components.
    Ying Yang, FDA; Terry Liao, Boston Scientific Corporation; Ying Yan, Helsinn Therapeutics (U.S.), Inc.
  • Coarsened propensity scores and hybrid estimators for missing data and causal inference.
    Jie Zhou, FDA/CDRH; Zhiwei Zhang, FDA CDRH; Zhaohai Li, George Washington University; Jun Zhang, Shanghai Jiaotong University School of Medicine.
  • Issues with Training, Testing and Validation Datasets in the Development of Diagnostics Devices.
    R. Lakshmi Vishnuvajjala, FDA.
  • Optimizing Accuracy of a Sequence of Tests: How Do We Determine the Order of the Tests?
    Christine Schubert Kabban, Air Force Institute of Technology; Donna K McClish, Virginia Commonwealth University.

499 - ROC and Multi-Reader Studies for Diagnostic Devices

  • Design and Analysis Considerations for Diagnostic Test Studies with Multiple Readers.
    Changhong Song, FDA.
  • Interpretation of multi-reader diagnostic radiologic data-analysis parameters, with applications to simulation models and sample size estimation.
    Stephen Hillis, University of Iowa.
  • Discriminating three or more ordinal outcomes with continuous measurements by combining cumulative logit regression and ROC curve analysis.
    Rey DeCastro, Centers for Disease Control & Prevention.
  • Comparing two correlated diagnostic tests based on simultaneous tests of AUC and Youden index.
    JingJing Yin, Georgia Southern University; Lili Tian, University at Buffalo; Hani Samawi, Georgia Southern University.
  • A New Diagnostic Accuracy Measure and Cut-points Selection Criterion.
    Tuochuan Dong, Novartis.
  • Optimal Design Strategy to Achieve a Pre-specified Power when the Biomarker is Subject to Measurement Error.
    Matthew Thomas White, Boston Children's Hospital; Sharon X. Xie, University of Pennsylvania.
  • Application of Receiver Operating Characteristic Method for Evaluating Optimal Threshold of Echocardiogram parameters for Prediction of Clinical Outcome in a Medical Device Trial.
    Hong Wang, Boston Scientific Corporation; Peter Lam, Boston Scientific.

691 - Evaluation of In Vitro Diagnostics

  • Statistical Considerations in Clinical Specificity Study for In-Vitro Diagnostic Device.
    Zhen Jiang, FDA.
  • Use of Gray Zone in IVD Tests.
    Tie-Hua Ng, FDA/CBER; Paul Hshieh, Ctr for Biologics Evaluation & Research Office of Biostatistics & Epidemiology.
  • Statistical Issues in evaluating Prostate Specific Antigen test for Aid in Prostate Cancer Detection.
    Kyungsook Kim, FDA.
  • Is HemoGenix assay HALOŽ 96 PCAEQ really CFU-equivalent progenitor cell assay?
    Pingfu Fu, Case Western Reserve University; Jane Reese, Case Western Reserve University; Brittney Hooper, Case Western Reserve University.
  • Error Grid Analysis (EGA) of Glycated Hemoglobin A1c: A Proposed Method.
    Jesse Canchola, Roche Molecular Systems Inc.; Shivani Aggarwal, University of Southern California.
  • Statistical evaluation of the analytic performance of a clinical sequencing assay.
    Eric Polley, National Cancer Institute; Lun-Ching Chang, National Cancer Institute.
  • Classifying usual interstitial pneumonia in patients with interstitial lung disease using machine learning on high-dimensional transcriptional data.
    Su Yeon Kim ; James Diggans, Veracyte, Inc.; Dan Pankratz, Veracyte, Inc.; Jing Huang, Veracyte, Inc.; Moraima Pagan, Veracyte, Inc.; Nicole Sindy, Veracyte, Inc.; Yoonha Choi, Veracyte, Inc.; Giulia C. Kennedy, Veracyte, Inc.

Contributed Oral Poster Presentations sponsored by Section on Medical Devices and Diagnostics at JSM 2015

375 - Section on Medical Devices and Diagnostics

  • Correction of Verification Bias by Application of Homogeneous Log-linear Models for a Single Binary-scale Diagnostic Tests.
    Haresh Rochani, Georgia Southern University; Robert Vogel, Georgia Southern University; Hani Samawi, Georgia Southern University; JingJing Yin, Georgia Southern University.
  • Reference Databases For Ophthalmic Optical Coherence Tomography Devices.
    Arkendra De, FDA/CDRH.
  • Modeling Brain Desynchronization by EEG Sensor Variance in Epileptic Patients.
    Craig Krebsbach, University of Rhode Island; Gavino Puggioni, University of Rhode Island.

SIGMEDD Sessions at past JSM

SIGMEDD presented 3 topic contributed sessions, 1 poster session, and 3 regular sessions at JSM 2014.

For more details and other past events, see the Past Events page.


MDD Student Paper Competition

$500 Award at JSM 2016

Submit Your Paper Before 12/15/2015

Details (including how to submit)


Meet 2015 Officers of MDD.

MDD Charter

The MDD Charter has been approved by all members and is therefore ratified.


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