ArticleOncology letters2024
Efficacy and safety of bevacizumab and platinum‑based chemotherapy as neoadjuvant regimen for stage‑IIIA non‑squamous non‑small cell lung cancer: A retrospective study.
Article in Oncology letters, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Bevacizumab plus platinum-based chemotherapy provides modest benefits in non-squamous non-small cell lung cancer (NSCLC), while its application as a neoadjuvant regimen has yet to be validated. The present study aimed to assess the efficacy of neoadjuvant bevacizumab plus platinum-based chemotherapy in patients with stage-IIIA non-squamous NSCLC. Data from 110 patients with stage-IIIA non-squamous NSCLC with negative driver genes, who received neoadjuvant bevacizumab plus platinum-based chemotherapy (n=50) or neoadjuvant platinum-based chemotherapy alone (n=60), and tumor resection, were retrospectively reviewed in the current study. In addition, the data on pathological response, disease-free survival (DFS), overall survival (OS) and adverse events were obtained. The results demonstrated that neoadjuvant bevacizumab plus chemotherapy did not significantly increase the pathological complete response (pCR) rate in comparison with neoadjuvant chemotherapy alone (18.0 vs. 8.3%; P=0.130). However, neoadjuvant bevacizumab plus chemotherapy significantly increased the rates of DFS (P=0.007) and OS (P=0.049) compared with neoadjuvant chemotherapy alone. Adjustments were then performed using multivariate logistic or Cox regression analyses, which demonstrated that neoadjuvant bevacizumab plus chemotherapy in comparison with neoadjuvant chemotherapy alone only significantly independently prolonged DFS [hazard ratio (HR)=0.251; P=0.042], but did not significantly affect pCR (odds ratio=2.897; P=0.117) or OS (HR=0.297; P=0.158). Furthermore, no significant differences were demonstrated between the number of adverse events in patients receiving neoadjuvant bevacizumab plus chemotherapy in comparison with those receiving neoadjuvant chemotherapy alone (all P>0.05). In conclusion, neoadjuvant bevacizumab plus platinum-based chemotherapy was only associated with a significant improvement in the rate of DFS, but showed limited efficacy in improving pCR and OS rates in comparison with neoadjuvant chemotherapy alone in patients with stage-IIIA non-squamous NSCLC. Therefore, a larger sample size and randomized controlled studies are needed for further validation of the findings of the present study.
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