Research Topics
| Ohidul SiddiquiSummaryAffiliation: Food and Drug Administration Country: USA Publications
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Detail Information
Publications
MMRM vs. LOCF: a comprehensive comparison based on simulation study and 25 NDA datasetsOhidul Siddiqui
Office of Biostatistics, Office of Translational Sciences, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland 20993, USA
J Biopharm Stat 19:227-46. 2009..In the exploratory analyses of the datasets, no clear evidence of the presence of MNAR missingness is found...
Endpoints and analyses to discern disease-modifying drug effects in early Parkinson's diseaseVenkatesh Atul Bhattaram
Pharmacometrics, Office of Clinical Pharmacology, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD 20993 0002, USA
AAPS J 11:456-64. 2009..The outcome of this work is part of the ongoing discussion between the US FDA and the pharmaceutical industry on the standards required for demonstrating disease-modifying effect using delayed start design...
MMRM versus MI in dealing with missing data--a comparison based on 25 NDA data setsOhidul Siddiqui
Office of Biostatistics, Office of Translational Sciences, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland 20993, USA
J Biopharm Stat 21:423-36. 2011..The MMRM approach appears to be a better choice in maintaining statistical properties of a test as compared to the MI approach in dealing with ignorable missing data of clinical trials...
Statistical methods to analyze adverse events data of randomized clinical trialsOhidul Siddiqui
Office of Biostatistics, Office of Translational Sciences, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland 20993, USA
J Biopharm Stat 19:889-99. 2009..As compared to the crude or exposure-adjusted incidence rates of adverse events, the MCF estimates facilitate more understanding of safety profiles of a drug in a randomized clinical trial...
Method of balanced adjustment in testing co-primary endpointsGeorge Kordzakhia
Division of Biometrics I, Office of Biostatistics, CDER, FDA, Silver Spring, MD 20993, USA
Stat Med 29:2055-66. 2010..The method is applicable for the scenario where the null space is restricted. Our testing approach controls maximum joint false positive rate over the restricted null space...
