Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,938 questions · 2,020 findings · 107 reviews

No studies found 570 · 28.2%GRADE not reported 266 · 13.2%Very low 578 · 28.6%Low 462 · 22.9%Moderate 118 · 5.8%High 26 · 1.3%

Amifostine (intravenous) vs Amifostine (subcutaneous)

Adverse effects · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review

Topical NSAID (ketoprofen chewing gum) vs Local anaesthetic (benzocaine chewing gum)

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · People undergoing orthodontic treatment (any age; 9 to 34 years in included studies)

It is very uncertain whether topical NSAID (ketoprofen chewing gum) changes pain intensity (VAS 0-100 mm) compared with local anaesthetic (benzocaine chewing gum) (very low certainty).

1 finding from 1 review

Selenium vs no intervention

Quality of life and other oral related symptoms (loss of taste, dysphagia) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review

Amifostine (intravenous) vs Amifostine (subcutaneous)

Overall survival · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Amifostine (intravenous) showed no clear difference in overall survival compared with amifostine (subcutaneous); GRADE not reported.

1 finding from 1 review

Amifostine 200 mg/m2 three times weekly vs Amifostine 200 mg/m2 five times weekly

Allergic adverse events · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Amifostine 200 mg/m2 three times weekly showed no clear difference in allergic response (adverse effect) compared with amifostine 200 mg/m2 five times weekly; GRADE not reported.

1 finding from 1 review

Chinese medicine vs no treatment/placebo

Xerostomia (other Chinese medicines) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review

Pilocarpine vs no treatment/placebo

Overall survival · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

It is very uncertain whether pilocarpine changes overall survival compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Polaprezinc vs Azulene oral rinse

Oral pain · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Polaprezinc led to lower oral pain (severe, > 2 on 0-3 scale) compared with azulene oral rinse; GRADE not reported.

1 finding from 1 review

Pilocarpine vs no treatment/placebo

Other oral related symptoms (oral discomfort, eating difficulty, mucosal pain, oral complications) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region
1 finding from 1 review