期刊
BMC MEDICINE
卷 20, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s12916-022-02579-8
关键词
Oral mucositis; Cancer therapy; Methylene blue Oral Rinse
资金
- National Institutes of Health/National Cancer Institute [P30CA016672]
This study assessed the safety and effectiveness of methylene blue oral rinse in reducing oral mucositis pain in cancer therapy patients. The results showed that methylene blue oral rinse significantly reduced pain and improved oral functioning with minimal adverse effects.
Background Oral mucositis (OM) in patients receiving cancer therapy is thus far not well managed with standard approaches. We aimed to assess the safety and effectiveness of methylene blue (MB) oral rinse for OM pain in patients receiving cancer therapy. Methods In this randomized, single-blind phase 2 clinical trial, patients were randomized to one of four arms: MB 0.025%+conventional therapy (CTx) (n = 15), MB 0.05%+CTx (n = 14), MB 0.1%+CTx (n = 15), or CTx alone (n = 16). Intervention groups received MB oral rinse every 6 h for 2 days with outcomes measured at days 1-2; safety was evaluated up to 30 days. The primary outcome measured change in the pain numeric rating scale (0-10) from baseline to day 2. Secondary outcome measured change in oral function burden scores from baseline to day 2, World Health Organization OM grades, morphine equivalent daily doses, and adverse events. The trial was registered with ClinicalTrials.gov ID: NCT03469284. Results Sixty patients (mean age 43, range 22-62 years) completed the study. Compared with those who received CTx alone, those who received MB had a significant reduction of pain scores at day 2 of treatment (mean +/- SD); 0.025%: 5.2 +/- 2.9, 0.05%: 4.5 +/- 2.9, 0.1%: 5.15 +/- 2.6) and reduction of oral function burden scores (0.025%: 2.5 +/- 1.55, 0.05%: 2.8 +/- 1.7, 0.1%: 2.9 +/- 1.60). No serious adverse events were noted, but eight patients reported burning sensation of the oral cavity with the first dose, and this caused one patient to discontinue therapy. Conclusions MB oral rinse showed significant pain reduction and improved oral functioning with minimal adverse effects.
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