Anticancer research · 2024
Safety and Efficacy of Durvalumab After Chemoradiotherapy in Antinuclear Antibody-positive Patients With Non-small Cell Lung Cancer.
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Tsukaguchi Akihiro, Tamiya Akihiro, Fukuda Shoichi, Iwahashi Yuki, Kanaoka Kensuke, Tanaka Yuya, Inagaki Yuji, Taniguchi Yoshihiko, Nakao Keiko, Kagawa Tomoko, Matsuda Yoshinobu, Okishio Kyoichi
Аннотация
BACKGROUND/AIM: Pneumonitis during durvalumab consolidation therapy after chemoradiotherapy (CRT) is a major cause of treatment discontinuation. Although previous studies have revealed an association between antinuclear antibody (ANA) positivity and the safety and efficacy of immune checkpoint inhibitors in advanced non-small cell lung cancer (NSCLC), there are no reports on durvalumab consolidation therapy. This study investigated the safety and efficacy of durvalumab after CRT in ANA-positive patients.
PATIENTS AND METHODS: We retrospectively reviewed patients with unresectable NSCLC treated with durvalumab after CRT between August 2018 and July 2022 at our institution. We evaluated the association among ANA positivity, treatment-related adverse events (AEs), and survival outcomes.
RESULTS: Overall, 80 patients were enrolled, 39 of whom were ANA-positive. Although there were no significant differences in the incidence of each AE of any grade, ANA-positive patients tended to have a higher frequency of pneumonitis of grade 3 to 5 than ANA-negative patients (12.8% vs. 2.4%, p=0.104). ANA-positive patients had a significantly shorter median progression-free survival (PFS) and overall survival (OS) than ANA-negative patients [14.9 months vs. not reached (NR), p=0.005; NR vs. NR, p=0.013]. Multivariate analysis revealed that ANA positivity was an independent predictor of shorter PFS (HR=2.23; 95% CI=1.16-4.29; p=0.016) and OS (HR=2.28; 95% CI=1.01-5.12; p=0.046).
CONCLUSION: ANA-positive patients receiving durvalumab after CRT tended to have a higher frequency of severe pneumonitis and significantly worse PFS and OS compared with ANA-negative patients.
PATIENTS AND METHODS: We retrospectively reviewed patients with unresectable NSCLC treated with durvalumab after CRT between August 2018 and July 2022 at our institution. We evaluated the association among ANA positivity, treatment-related adverse events (AEs), and survival outcomes.
RESULTS: Overall, 80 patients were enrolled, 39 of whom were ANA-positive. Although there were no significant differences in the incidence of each AE of any grade, ANA-positive patients tended to have a higher frequency of pneumonitis of grade 3 to 5 than ANA-negative patients (12.8% vs. 2.4%, p=0.104). ANA-positive patients had a significantly shorter median progression-free survival (PFS) and overall survival (OS) than ANA-negative patients [14.9 months vs. not reached (NR), p=0.005; NR vs. NR, p=0.013]. Multivariate analysis revealed that ANA positivity was an independent predictor of shorter PFS (HR=2.23; 95% CI=1.16-4.29; p=0.016) and OS (HR=2.28; 95% CI=1.01-5.12; p=0.046).
CONCLUSION: ANA-positive patients receiving durvalumab after CRT tended to have a higher frequency of severe pneumonitis and significantly worse PFS and OS compared with ANA-negative patients.