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논문 기본 정보

자료유형
학술저널
저자정보
최현우 (전남대학교병원) 정영곤 (순천 성가롤로병원 심혈관센터) 김어진 (화순전남대학교병원) 이상철 (순천향대학교) 권정혜 (충남대학교) 김현종 (Divisions of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea) 김사라 (전남대학교병원) 이윤정 (전남대병원) 심현정 (전남대학교) 조상희 (전남대학교) 정익주 (전남대학교) 황의창 (전남대학교 의과대학 비뇨의과학교실) 강승지 (전남대학교) 배우균 (전남대학교) 기승정 (전남대학교)
저널정보
전남대학교 의과학연구소 전남의대학술지 Chonnam Medical Journal Vol.60 No.1
발행연도
2024.1
수록면
69 - 77 (9page)

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초록· 키워드

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This study was conducted to investigate potential differences in vaccine efficacy between patients undergoing palliative chemotherapy and receiving adjuvant chemotherapy. Additionally, the study proved the influence of vaccination timing on vaccine efficacy during active chemotherapy. Anti-receptor-binding domain (RBD) IgG binding antibody assays and surrogate neutralizing antibody assays were performed after BNT162b2 or mRNA-1273 vaccination in 45 solid cancer patients (23 adjuvant and 22 palliative chemotherapy) and in 24 healthy controls before vaccination (baseline), at every two to four weeks after the first (post-dose 1) and the second vaccination (post-dose 2). The levels of anti-RBD IgG and neutralizing antibodies increased significantly from baseline through post-dose 1 to post-dose 2 in all three groups. At the post-dose 1, the anti-RBD IgG and neutralizing antibody levels were significantly lower in cancer patients than in healthy controls. However, by post-dose 2, the seropositivity of anti-RBD IgG and neutralizing antibodies uniformly reached 100% across all groups, with no significant disparity in antibody levels among the three groups. Moreover, the antibody titers were not significantly different between patients with a vaccine and chemotherapy interval of more than 14 days or those with less than 14 days. This study demonstrated that after second doses of mRNA COVID-19 vaccines, humoral immune responses in patients receiving chemotherapy were comparable to those of healthy controls, regardless of whether the purpose of the anti-cancer treatment was palliative or adjuvant. Furthermore, the timing of vaccination did not affect the level of humoral immunity after the second vaccination.

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