主要结局:主动维持显著延长了无复发生存期。在24周时,主动维持组复发风险降低了38%(HR = 0.62, 95% CI 0.45–0.86, p = 0.004)。至第24周时,主动维持组的累积复发率为39.6%,而被动按需治疗组为61.6%,绝对风险降低了22.0%。探索性分析显示,这种获益持续至52周。
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次要结局:
1.
复发负担:在0-24周内,主动维持组的复发发生率更低(IRR = 0.68, 95% CI 0.52–0.88, p = 0.003)。
亚组与敏感性分析:预设的亚组分析显示,在不同患者亚群中,主动维持的获益方向一致,未检测到显著的交互作用。多种敏感性分析方法均支持主要结果的稳健性。0.05). Treatment effects were directionally consistent, favoring proactive maintenance. (B) Sensitivity analyses. Robustness of the primary result was assessed using multiple approaches, including propensity-score matching (PSM), augmented inverse probability weighting (AIPW), competing-risk models (Fine–Gray), alternative flare definitions, time-varying exposure handling, early-event exclusion, extreme weight truncation, and complete-case analysis. All sensitivity analyses yielded HR estimates between 0.61 and 0.67, indicating stable and consistent treatment effects.">
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安全性:两组局部不良反应(如灼热、刺痛、毛囊炎)发生率相当(8.3% vs. 7.9%),未发生严重不良事件。