Post-approval Safety Monitoring of Quadrivalent and Bivalent Human Papillomavirus Vaccines Based on Real-world Data from
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ORIGINAL RESEARCH ARTICLE
Post‑approval Safety Monitoring of Quadrivalent and Bivalent Human Papillomavirus Vaccines Based on Real‑world Data from the Korea Adverse Events Reporting System (KAERS) MoonJung Kim1 · SangHee Kim1 · Ju‑Young Shin1
© Springer Nature Switzerland AG 2020
Abstract Background and Objectives The vaccine adjuvant, AS04, present in bivalent human papilloma virus (bHPV) vaccines, induces greater local immune responses than the aluminum adjuvant in quadrivalent HPV (qHPV) vaccines. These distinctions might also result in disparities in immunogenicity and responsiveness, possibly contributing to differences in adverse events (AEs) between these vaccines. Here we comparatively analyzed AEs between qHPV and bHPV vaccines based on 10-year real-world AE data. Methods We evaluated the Korea Adverse Events Reporting System (KAERS), a nationwide drug database including vaccines from January 2007 to December 2016, analyzing AEs reported for qHPV and bHPV vaccines. Vaccine-AE pairs were generated, and the characteristics of all reported AEs were analyzed. Signals were derived using the disproportionality method of signal detection algorithms (reporting odds ratios and information component). Results Of the total 2566 HPV vaccine-associated AE reports, 2686 and 1994 were vaccine-AE pairs for qHPV and bHPV, respectively. Application site disorders were the most frequent AEs for both vaccines but were more frequently reported with the bHPV vaccine. The characteristics of non-application site AEs between the two vaccines were generally similar, but systemic AEs such as fever and fatigue were more common with the bHPV vaccine. Tremor, rash, eye pain, myopathy and circulatory failure were identified as signals in both qHPV and bHPV vaccines. Conclusions Both application site disorders and systemic AEs were somewhat more frequent with the bHPV vaccine than with the qHPV vaccine. This might be caused by an immune response induced by adjuvants contained within the vaccines.
1 Introduction Cervical cancer is the second most common cancer in women worldwide and is the only type that is preventable by vaccination [1]. The main risk factor for the development of cervical cancer is human papilloma virus (HPV) infection [2]. Of around 190 HPVs, approximately 40 have been MoonJung Kim and SangHee Kim Co-first authors contributed equally. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s40261-020-00930-6) contains supplementary material, which is available to authorized users. * Ju‑Young Shin [email protected] 1
School of Pharmacy, Sungkyunkwan University, 2066, Seobu‑ro, Jangan‑gu, Suwon, Gyeonggi‑do 16419, South Korea
determined to cause genital infections [3]; the most common high-risk types identified were HPV-16 and HPV-18, which together account for approximately 70% of HPV infections associated with cervical cancer [4]. HPV vaccines are currently used in 78 countries for the prevention of cervical cancer and have been introduced into the national vaccina
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