PMID- 30915153 OWN - NLM STAT- MEDLINE DCOM- 20190904 LR - 20200225 IS - 1748-6718 (Electronic) IS - 1748-670X (Print) IS - 1748-670X (Linking) VI - 2019 DP - 2019 TI - Likelihood-Ratio-Test Methods for Drug Safety Signal Detection from Multiple Clinical Datasets. PG - 1526290 LID - 10.1155/2019/1526290 [doi] LID - 1526290 AB - Pre- and postmarket drug safety evaluations usually include an integrated summary of results obtained using data from multiple studies related to a drug of interest. This paper proposes three approaches based on the likelihood ratio test (LRT), called the LRT methods, for drug safety signal detection from large observational databases with multiple studies, with focus on identifying signals of adverse events (AEs) from many AEs associated with a particular drug or inversely for signals of drugs associated with a particular AE. The methods discussed include simple pooled LRT method and its variations such as the weighted LRT that incorporates the total drug exposure information by study. The power and type-I error of the LRT methods are evaluated in a simulation study with varying heterogeneity across studies. For illustration purpose, these methods are applied to Proton Pump Inhibitors (PPIs) data with 6 studies for the effect of concomitant use of PPIs in treating patients with osteoporosis and to Lipiodol (a contrast agent) data with 13 studies for evaluating that drug's safety profiles. FAU - Huang, Lan AU - Huang L AUID- ORCID: 0000-0003-2290-7466 AD - Mathematical Statistician in the Division of Biostatistics, Office of Clinical Evidence and Analysis, CDRH, FDA, Silver Spring, MD 20993, USA. FAU - Zalkikar, Jyoti AU - Zalkikar J AUID- ORCID: 0000-0002-6212-8793 AD - Mathematical Statistician in the Division of Biometrics I, Office of Biostatistics, OTS, CDER, FDA, Silver Spring, MD 20993, USA. FAU - Tiwari, Ram AU - Tiwari R AD - Division Director in the Division of Biostatistics, Office of Clinical Evidence and Analysis, CDRH, FDA, Silver Spring, MD 20993, USA. LA - eng PT - Journal Article DEP - 20190219 PL - United States TA - Comput Math Methods Med JT - Computational and mathematical methods in medicine JID - 101277751 RN - 0 (Proton Pump Inhibitors) RN - 8008-53-5 (Ethiodized Oil) SB - IM MH - Algorithms MH - Computer Simulation MH - *Data Interpretation, Statistical MH - Databases, Factual MH - *Drug-Related Side Effects and Adverse Reactions MH - Ethiodized Oil/pharmacology MH - Humans MH - *Likelihood Functions MH - Medical Informatics/*methods MH - Models, Statistical MH - Osteoporosis/drug therapy MH - Patient Safety MH - Product Surveillance, Postmarketing/statistics & numerical data MH - Proton Pump Inhibitors/pharmacology MH - Reproducibility of Results MH - Risk MH - Software PMC - PMC6399568 EDAT- 2019/03/28 06:00 MHDA- 2019/09/05 06:00 PMCR- 2019/02/19 CRDT- 2019/03/28 06:00 PHST- 2018/09/28 00:00 [received] PHST- 2018/12/07 00:00 [revised] PHST- 2019/01/21 00:00 [accepted] PHST- 2019/03/28 06:00 [entrez] PHST- 2019/03/28 06:00 [pubmed] PHST- 2019/09/05 06:00 [medline] PHST- 2019/02/19 00:00 [pmc-release] AID - 10.1155/2019/1526290 [doi] PST - epublish SO - Comput Math Methods Med. 2019 Feb 19;2019:1526290. doi: 10.1155/2019/1526290. eCollection 2019.