What do systematic reviews say?

LongoVital (herbal component alone) vs placebo

• Systemic interventions for recurrent aphthous stomatitis (mouth ulcers) 2012 · Cochrane All outcomes
  Reported adverse events were minor and evenly distributed between the groups (Kolseth 2005). 'Very few and mostly harmless side-effects' were observed (Bratel 2005).
  2 studies
  GRADE not reported

Carboxymethylcellulose (CMC) spray vs Placebo (spray base without CMC / water)

• Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
  Donatsky 1982 (crossover, n=15, Sjogren's syndrome): CMC spray had a similar effect on oral dryness to the spray base, but was more effective than water. Paired crossover data not presented; effect size not estimable.
  1 study · 15 participants
  GRADE not reported

Camomile vs placebo

Camomile showed no clear difference in oral mucositis (any severity) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.89 [0.62, 1.27]
  1 study · 164 participants
  GRADE not reported

Indigo wood root vs saline placebo

Indigo wood root showed no clear difference in oral mucositis (moderate to severe) compared with saline (placebo); GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.75 [0.5, 1.1]
  1 study · 20 participants
  GRADE not reported

Sucralfate vs placebo or usual care

Sucralfate showed no clear difference in oral mucositis (any severity) compared with placebo/usual care (moderate certainty).

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.98 [0.88, 1.1]
  3 studies · 222 participants
  Moderate

Intestinal trefoil factor vs placebo

Intestinal trefoil factor showed no clear difference in oral mucositis (severe) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 1.52 [0.06, 36.39]
  1 study · 99 participants
  GRADE not reported

Zinc sulphate vs placebo

Zinc sulphate led to lower oral mucositis (severe) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.05 [0, 0.75]
  1 study · 27 participants
  GRADE not reported

Glutamine vs placebo or usual care

Glutamine showed no clear difference in oral mucositis (any severity) compared with placebo/usual care; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.78 [0.57, 1.08]
  5 studies
  GRADE not reported

Sucralfate vs placebo or usual care

Sucralfate probably leads to lower oral mucositis (severe) compared with placebo/usual care (moderate certainty).

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.67 [0.48, 0.92]
  7 studies · 428 participants
  Moderate

Low‐level laser therapy vs Placebo or no active treatment

Laser (low level) showed no clear difference in oral mucositis (any severity) compared with placebo/sham/no treatment; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.91 [0.71, 1.17]
  5 studies · 234 participants
  GRADE not reported

Keratinocyte GF vs placebo

Keratinocyte GF led to lower oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.74 [0.62, 0.89]
  7 studies
  GRADE not reported

Histamine gel vs placebo

Histamine gel showed no clear difference in oral mucositis (any severity) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 1.35 [0.91, 1.99]
  1 study · 39 participants
  GRADE not reported

Chlorhexidine vs placebo/no treatment

Chlorhexidine showed no clear difference in oral mucositis (any severity) compared with placebo/no treatment (low certainty).

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.76 [0.47, 1.24]
  4 studies · 454 participants
  Low

Aloe vera vs placebo

Aloe vera led to lower oral mucositis (moderate to severe) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.74 [0.58, 0.96]
  2 studies · 119 participants
  GRADE not reported

Mucoadhesive disk (carbomer/triglycerides + antimicrobial agents) vs Placebo disk

• Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
  Kerr 2010 (crossover, high risk of bias): no difference in oral dryness between active and placebo disks; increase in subjective oral moistness with both, persisting up to 2 weeks after last use (likely carryover);…
  1 study
  GRADE not reported

Buffered 'Prophylin' prophylactic gel vs Placebo gel

• Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
  Persson 2007 (crossover, n=14, institutionalised elderly): no dry mouth symptom data after treatment were presented.
  1 study · 14 participants
  GRADE not reported

Mucin spray (Saliva Orthana) vs Placebo spray (base without mucin)

Mucin spray (Saliva Orthana) showed no clear difference in xerostomia (VAS mouth dryness) compared with placebo spray (base without mucin); GRADE not reported.

• Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
  Duxbury 1989 (crossover): statistically significant improvement in dry mouth on a VAS favouring the mucin spray group (Analysis 1.2; SMD not numerically reported).
  1 study
  GRADE not reported

Physostigmine gel (1.8 mg) vs Placebo gel

• Interventions for the management of dry mouth: topical therapies 2011 · Cochrane All outcomes
  Khosravani 2009 (crossover, low risk of bias, n=17): reduction in oral dryness (VAS area-under-curve over first 180 minutes) after 1.8 mg physostigmine gel; reported graphically, not usable for meta-analysis.
  1 study · 17 participants
  GRADE not reported

Benzydamine vs placebo

Benzydamine led to lower oral mucositis (severe) compared with placebo; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.55 [0.38, 0.82]
  1 study · 81 participants
  GRADE not reported

Allopurinol mouthrinse vs placebo/no treatment

Allopurinol mouthrinse led to lower oral mucositis (moderate to severe) compared with placebo/no treatment; GRADE not reported.

• Interventions for preventing oral mucositis for patients with cancer receiving treatment 2011 · Cochrane All outcomes

  Median 28 days
  RR 0.66 [0.5, 0.86]
  2 studies
  GRADE not reported