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Background <p>Chlorhexidine mouthrinse offers a cost-effective approach to preventing oral mucositis (OM) in anti-tumour treatment, yet it might cause tooth discoloration, unpleasant taste, and pain. To compare compound Staphylococcal lysostaphin (CSL) mouthrinse to chlorhexidine mouthrinse in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients.</p> Methods <p>This randomised, controlled, non-inferiority clinical trial (NCT06791746) randomised adult patients who were scheduled for myeloablative conditioning and allo-HSCT to receive OM prophylaxis using CSL mouthrinse or chlorhexidine mouthrinse. The primary endpoint was the cumulative incidence of oral mucositis, with a non-inferiority margin of 15%.</p> Results <p>Among 196 participants in the CSL mouthrinse group and 197 in the chlorhexidine mouthrinse group, ninety-four (48.0%) and 105 (53.3%) developed OM, respectively. The absolute risk difference was −5.3% (95% CI: −15.6, 4.7), with a upper limit of 95% CI did not exceed the non-inferiority margin. The average pain score was significantly lower with CSL mouthrinse (0.45 ± 1.06 vs. 0.85 ± 1.39, <i>P</i> = 0.002), supported by the analysis of distribution of pain score (<i>P</i> &lt; 0.001). The time to OM onset and cumulative days with OM were comparable between the two groups (both <i>P</i> &gt; 0.05).</p> Conclusions <p>CSL mouthrinse had non-inferior prophylactic efficacy in reducing OM occurrence in patients undergoing myeloablative conditioning allo-HSCT compared to chlorhexidine mouthrinse, with less pain intensity.</p>

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Compound staphylococcal lysostaphin for oral mucositis prophylaxis in hematopoietic stem cell transplantation recipients: a non-inferiority randomized trial

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • Xiaoyu Zhou,
  • Zhengwen Pan,
  • Weiwei Zhou,
  • Jianli Zhang,
  • Liwei Xu,
  • Shuyi Ding,
  • Liying Zeng,
  • Yini Huang,
  • Zhenzhen Fang,
  • Weilin Pang

摘要

Background

Chlorhexidine mouthrinse offers a cost-effective approach to preventing oral mucositis (OM) in anti-tumour treatment, yet it might cause tooth discoloration, unpleasant taste, and pain. To compare compound Staphylococcal lysostaphin (CSL) mouthrinse to chlorhexidine mouthrinse in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients.

Methods

This randomised, controlled, non-inferiority clinical trial (NCT06791746) randomised adult patients who were scheduled for myeloablative conditioning and allo-HSCT to receive OM prophylaxis using CSL mouthrinse or chlorhexidine mouthrinse. The primary endpoint was the cumulative incidence of oral mucositis, with a non-inferiority margin of 15%.

Results

Among 196 participants in the CSL mouthrinse group and 197 in the chlorhexidine mouthrinse group, ninety-four (48.0%) and 105 (53.3%) developed OM, respectively. The absolute risk difference was −5.3% (95% CI: −15.6, 4.7), with a upper limit of 95% CI did not exceed the non-inferiority margin. The average pain score was significantly lower with CSL mouthrinse (0.45 ± 1.06 vs. 0.85 ± 1.39, P = 0.002), supported by the analysis of distribution of pain score (P < 0.001). The time to OM onset and cumulative days with OM were comparable between the two groups (both P > 0.05).

Conclusions

CSL mouthrinse had non-inferior prophylactic efficacy in reducing OM occurrence in patients undergoing myeloablative conditioning allo-HSCT compared to chlorhexidine mouthrinse, with less pain intensity.