PMID- 33483853 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210329 IS - 2193-8229 (Print) IS - 2193-6382 (Electronic) IS - 2193-6382 (Linking) VI - 10 IP - 1 DP - 2021 Mar TI - Comparison of Prospective and Retrospective Methods of a Tigecycline Post-Marketing Surveillance Study in the Safety Outcomes of Patients with Complicated Skin Structure Infection, Complicated Intraabdominal Infection and Community-Acquired Pneumonia. PG - 411-420 LID - 10.1007/s40121-021-00398-7 [doi] AB - INTRODUCTION: Safety data can be collected through prospective and retrospective methods during post-marketing surveillance (PMS). This study aimed to compare prospective and retrospective methods in terms of examining safety data from PMS of tigecycline. METHODS: This PMS study was an open-label, noncomparative, observational, noninterventional and multicenter study of patients who received tigecycline for infections. From July 2007 to April 2015, 3172 patients were included in this study, of which 738 were enrolled prospectively and 2434 retrospectively. To reduce selection bias, demographic and baseline characteristics were adjusted using 1:2 propensity score matching. RESULTS: After propensity score matching, data from 1446 patients were analyzed. The incidences of adverse events (AEs) and serious AEs (SAEs) were determined to be significantly higher in the prospective method compared with those of the retrospective method (P < 0.001 and P = 0.004, respectively). However, no significant differences in the incidences of adverse drug reactions (ADRs) and serious ADRs (SADRs) were detected between the two groups (P = 0.09 and P = 0.33, respectively). In a subgroup analysis of 360 patients from 14 hospitals involved in both prospective and retrospective methods, the incidence of AEs was found to be significantly higher using the prospective method compared with when the retrospective method was used (P < 0.001), but there were no significant differences in ADRs (P = 0.14), SAEs (P = 0.24) and SADRs. CONCLUSION: In general, the prospective method can detect safety data effectively in a PMS study, whereas retrospective data collection may be an alternative option in collecting ADR data when a prospective PMS study is not deemed feasible. FAU - Chi, Whanhui AU - Chi W AD - Pfizer Inc, Seoul, Republic of Korea. FAU - Lee, Hye Jung AU - Lee HJ AD - Pfizer Inc, Seoul, Republic of Korea. FAU - Chong, Yong Pil AU - Chong YP AUID- ORCID: 0000-0003-1672-3185 AD - Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. drchong@amc.seoul.kr. LA - eng PT - Journal Article DEP - 20210122 PL - New Zealand TA - Infect Dis Ther JT - Infectious diseases and therapy JID - 101634499 PMC - PMC7955005 OTO - NOTNLM OT - Community-acquired pneumonia OT - Complicated intraabdominal infection OT - Complicated skin structure infection OT - Post-marketing surveillance OT - Prospective study OT - Retrospective study OT - Safety OT - Tigecycline EDAT- 2021/01/24 06:00 MHDA- 2021/01/24 06:01 PMCR- 2021/01/22 CRDT- 2021/01/23 05:40 PHST- 2020/12/02 00:00 [received] PHST- 2021/01/06 00:00 [accepted] PHST- 2021/01/24 06:00 [pubmed] PHST- 2021/01/24 06:01 [medline] PHST- 2021/01/23 05:40 [entrez] PHST- 2021/01/22 00:00 [pmc-release] AID - 10.1007/s40121-021-00398-7 [pii] AID - 398 [pii] AID - 10.1007/s40121-021-00398-7 [doi] PST - ppublish SO - Infect Dis Ther. 2021 Mar;10(1):411-420. doi: 10.1007/s40121-021-00398-7. Epub 2021 Jan 22.