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diff --git a/2025/12/19/临床研究中盲态规则存在的原因/index.html b/2025/12/19/临床研究中盲态规则存在的原因/index.html new file mode 100644 index 00000000..3e966206 --- /dev/null +++ b/2025/12/19/临床研究中盲态规则存在的原因/index.html @@ -0,0 +1,304 @@ +<!DOCTYPE html> +<html lang="en"> + <head> + <meta charset="UTF-8"> +<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> +<meta http-equiv="X-UA-Compatible" content="ie=edge"> + + <meta name="author" content="韩暮秋"> + + + <meta name="subtitle" content="暮秋小屋"> + + + <meta name="description" content="这里是暮秋小屋，思念和灵感的寄存处"> + + + <meta name="keywords" content="韩暮秋,MuqiuHan,'Muqiu Han', 'muqiu han', muqiuhan"> + + + + + <title> + + 临床研究中盲态规则存在的原因 | + 暮秋小屋 + </title> + + + + <link rel="icon" href="/favicon.ico"> + + + <style> + @font-face { + font-family: CarroisSong; + src: url('/fonts/CarroisSong.ttf'); + } + </style> + + + + <!-- stylesheets list from _config.yml --> + + <link rel="stylesheet" href="/css/style.css"> + + + + + + <!-- scripts list from _config.yml --> + + <script + src="/js/menu.js"></script> + + + + + + <script + src="https://polyfill.alicdn.com/polyfill.js?features=es6"></script> + <script + id="MathJax-script" + async + src="https://lf6-cdn-tos.bytecdntp.com/cdn/expire-1-M/mathjax/3.2.0/es5/tex-mml-chtml.js"></script> + + + + + <meta name="generator" content="Hexo 6.3.0"></head> + <body> + <div class="mask-border"> + </div> + + <div class="wrapper"> + + <div class="header"> + <div class="flex-container"> + <div class="header-inner"> + <div class="site-brand-container"> + <a href="/"> + + 暮秋小屋 + + </a> + </div> + <div id="menu-btn" class="menu-btn" onclick="toggleMenu()"> + 菜单 + </div> + <nav class="site-nav"> + <ul class="menu-list"> + + + <li class="menu-item"> + <a href="/"> + 主页 + </a> + </li> + + + + <li class="menu-item"> + <a href="/categories/gallery/"> + 日记本 + </a> + </li> + + + + <li class="menu-item"> + <a href="/tags/Medicine/"> + 医学 + </a> + </li> + + + + <li class="menu-item"> + <a href="/tags/Technique/"> + 计算机/互联网 + </a> + </li> + + + + <li class="menu-item"> + <a href="/tags/Life/"> + 生活 + </a> + </li> + + + + <li class="menu-item"> + <a href="/archives"> + 全部 + </a> + </li> + + + + <li class="menu-item"> + <a href="/about"> + 关于 + </a> + </li> + + + + <li class="menu-item search-btn"> + <a href="#">Search</a> + </li> + + </ul> + </nav> + </div> + </div> +</div> + + <div class="main"> + <div class="flex-container"> + <article id="post"> + + + <div class="post-head"> + <div class="post-info"> + <div class="tag-list"> + + + <span class="post-tag"> + <a href="/tags/Medicine/"> + Medicine + </a> + </span> + + + </div> + <div class="post-title"> + + + 临床研究中盲态规则存在的原因 + + + </div> + <span class="post-date"> + Dec 19, 2025 + </span> + </div> + <div class="post-img"> + + <div class="h-line-primary"></div> + + </div> +</div> + <div class="post-content"> + <p>在临床药物试验中，盲态是一种核心方法学设计，旨在消除主观偏见对试验结果的影响。其本质在于对研究参与者、研究者或评估者中的一方或多方隐藏治疗分配信息，从而确保数据收集和结果判读的客观性。盲态的实施贯穿试验设计、执行、数据管理和分析的全链条，其规定与存在原因植根于循证医学对科学严谨性的追求。</p> +<p>从试验启动到结束，盲态管理需遵循标准化流程。在方案设计阶段，需明确盲法层级（如单盲、双盲或三盲），并制定相应的盲法实施计划。随机化编码由独立于临床团队的统计人员或第三方机构生成，治疗药物与对照品（如安慰剂）需在外观、气味、包装上完全一致，以确保盲态的完整性。在试验执行期间，发药、药物清点及受试者管理均由不参与疗效评估的人员负责，避免无意间泄露分组信息。当受试者出现严重不良事件，且必须知晓具体用药才能实施救治时，可启动紧急揭盲程序，但需严格记录揭盲原因、时间及操作人员，并在最终报告中说明。数据录入与管理环节，所有标识治疗组别的字段均需隐藏，数据库锁定前由盲态审核委员会进行一致性核查，确保无意外破盲。直至最终统计分析完成，研究团队方可正式揭盲。这一系列措施在《药物临床试验质量管理规范》及ICH-GCP指南中均有详细规定，旨在维护试验结果的科学可靠性<sup class="footnote-ref"><a href="#fn1" id="fnref1">[1]</a></sup>。</p> +<p>盲态的核心价值在于控制两类主要偏倚：性能偏倚与检测偏倚。若研究者或受试者知晓治疗分配，可能在评估症状改善、记录不良事件或调整合并用药时产生倾向性，例如对试验组过度乐观或对对照组过度严苛，这种主观介入会扭曲药物真实疗效的测量。此外，在患者报告结局或生活质量评分等软终点指标中，知晓分组可能直接影响受试者的心理预期与反馈，进一步干扰结果有效性。通过盲态设计，可最大程度剥离人为因素对终点事件的干扰，从而更准确地估计药物与安慰剂或对照药之间的差异。从统计学角度，盲态有助于维持随机化带来的组间均衡性，使基线特征与未知混杂因素在组间均匀分布，提升因果推断的可靠性。历史上多项研究显示，非盲试验倾向于高估治疗效果约25%左右，尤其在主观性终点中偏倚更为显著<sup class="footnote-ref"><a href="#fn2" id="fnref2">[2]</a></sup>。</p> +<hr> +<p><strong>参考文献</strong></p> +<hr class="footnotes-sep"> +<section class="footnotes"> +<ol class="footnotes-list"> +<li id="fn1" class="footnote-item"><p>International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. <em>ICH Harmonised Guideline: Integrated Addendum to ICH E6(R1): Guideline for Good Clinical Practice E6(R2)</em>. 2016. <a target="_blank" rel="noopener" href="https://database.ich.org/sites/default/files/E6_R2_Addendum.pdf">https://database.ich.org/sites/default/files/E6_R2_Addendum.pdf</a> <a href="#fnref1" class="footnote-backref">↩︎</a></p> +</li> +<li id="fn2" class="footnote-item"><p>Hróbjartsson A, et al. <em>Blinded trials taken to the test: an analysis of randomized clinical trials that report tests for the success of blinding</em>. International Journal of Epidemiology. 2007;36(3):654-663. <a target="_blank" rel="noopener" href="https://doi.org/10.1093/ije/dym020">https://doi.org/10.1093/ije/dym020</a> <a href="#fnref2" class="footnote-backref">↩︎</a></p> +</li> +</ol> +</section> + +</div> + +<script> + window.onload = detectors(); +</script> + <div class="post-footer"> + <div class="h-line-primary"></div> + <nav class="post-nav"> + <div class="prev-item"> + + <div class="icon arrow-left"></div> + <div class="post-link"> + <a href="/2025/12/25/%E4%BA%8C%E3%80%87%E4%BA%8C%E4%BA%94%E5%B9%B4%E5%8D%81%E4%BA%8C%E6%9C%88%E4%BA%8C%E5%8D%81%E4%BA%94%E6%97%A5/">Prev</a> + </div> + + </div> + <div class="next-item"> + + <div class="icon arrow-right"></div> + <div class="post-link"> + <a href="/2025/12/19/%E4%BA%8C%E3%80%87%E4%BA%8C%E4%BA%94%E5%B9%B4%E5%8D%81%E4%BA%8C%E6%9C%88%E5%8D%81%E4%B9%9D%E6%97%A5/">Next</a> + </div> + + </div> + </nav> +</div> + + + <div class="post-comment"> + + + + + + + +</div> + + +</article> + </div> + </div> + + <div class="footer"> + <div class="flex-container"> + <div class="footer-text"> + + + 韩暮秋 | + + + 希望路过的人可以添点柴火让这里暖和点 + + </div> + </div> +</div> + + </div> + + + <div class="search-popup"> + <div class="search-popup-overlay"> + </div> + <div class="search-popup-window" > + <div class="search-header"> + <div class="search-input-container"> + <input autocomplete="off" autocapitalize="off" maxlength="80" + placeholder="Search Anything" spellcheck="false" + type="search" class="search-input"> + </div> + <div class="search-close-btn"> + <div class="icon close-btn"></div> + </div> + </div> + <div class="search-result-container"> + </div> + </div> +</div> + +<script> + const searchConfig = { + path : "/search.xml", + top_n_per_article: "1", + unescape : "false", + trigger: "auto", + preload: "false" + } +</script> +<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/search.js"></script> +<script src="/js/search.js"></script> + + + + </body> +</html> |