A new analysis of six studies suggests that a Japanese herbal mouth rinse called hangeshashinto may help prevent oral mucositis, a common and painful side effect of chemotherapy. Oral mucositis involves sores and inflammation in the mouth that can make eating and drinking difficult. The analysis combined data from 293 patients with cancer who were receiving chemotherapy. About 46% of those who used hangeshashinto developed oral mucositis, compared to 51% of those who did not use it or used a placebo. This difference was borderline statistically significant, meaning the finding is promising but not definitive. The analysis included five randomized controlled trials and one case-matched study. No safety information was reported in the included studies. The researchers caution that more well-designed trials are needed to confirm whether hangeshashinto truly prevents oral mucositis. For now, patients should talk to their doctor before trying any herbal remedy.
Hangeshashinto may reduce oral mucositis risk in chemotherapy patients (RR 0.86)Japanese herbal rinse may reduce mouth sores from chemo
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This meta-analysis pooled data from 5 randomized controlled trials and 1 case-matched study involving 293 patients with cancer receiving chemotherapy. The analysis compared hangeshashinto versus no hangeshashinto or placebo for prevention of oral mucositis (more than grade 1).
The primary outcome occurred in 65 of 141 patients (46.1%) in the hangeshashinto group versus 78 of 152 (51.3%) in the control group, yielding a risk ratio of 0.86 (95% confidence interval 0.73-1.00, P=0.05). This suggests a modest reduction in risk that approached statistical significance.
The authors acknowledge that further well-designed randomized controlled trials are required to confirm the preventive efficacy of hangeshashinto. Adverse events, serious adverse events, and discontinuations were not reported in the meta-analysis.
Clinicians may consider hangeshashinto as a potential option for reducing oral mucositis risk, but the evidence is limited by the small sample size and borderline statistical significance. The findings should be interpreted cautiously until confirmed by larger, more rigorous trials.
How this fits prior evidence
This meta-analysis adds to prior coverage on supportive care in cancer. While earlier items focused on pain management (cervical cordotomy), psychological well-being (mandala painting and music therapies), and delirium prevention (multicomponent nonpharmacological interventions), this review addresses a different supportive need: oral mucositis prevention. The finding of a modest risk reduction (RR 0.86) with hangeshashinto extends the range of nonpharmacological options for chemotherapy-related side effects, though the evidence is less robust than for interventions like cordotomy or multicomponent delirium prevention.
Common questions
What is hangeshashinto?
Hangeshashinto is a Japanese herbal mouth rinse used to help prevent oral mucositis, which are painful mouth sores caused by chemotherapy.
How much does hangeshashinto reduce the risk of mouth sores?
In the analysis, 46.1% of people using hangeshashinto developed mouth sores compared to 51.3% in the control group, a risk ratio of 0.86.
Is hangeshashinto safe?
The analysis did not report any safety information, so it is not known if hangeshashinto has side effects. Talk to your doctor before using it.
Should I use hangeshashinto for my chemo mouth sores?
The evidence is not strong enough to recommend it yet. More research is needed. Ask your doctor if it might be right for you.
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