Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

90 questions · 117 findings · 5 reviews · All outcomes

No studies found 33 · 28.2%GRADE not reported 51 · 43.6%Very low 18 · 15.4%Low 12 · 10.3%Moderate 3 · 2.6%High 0 · 0%

Pilocarpine vs no treatment/placebo

Salivary flow rate (unstimulated) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

It is very uncertain whether pilocarpine changes salivary flow rate (unstimulated) compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Amifostine vs no treatment/placebo

Cost (mean per-patient supportive care costs) · 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

Dry mouth (xerostomia) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Pilocarpine led to lower xerostomia (objective, LENT-SOMA scale) compared with no treatment/placebo; GRADE not reported.

3 findings from 1 review

Amifostine vs no treatment/placebo

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

Amifostine vs no treatment/placebo

Xerostomia (grade >= 2, 0-4 scale) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Amifostine may leads to lower xerostomia (grade >= 2, 0-4 scale) compared with no treatment/placebo (low certainty).

3 findings from 1 review

Chinese medicine vs no treatment/placebo

Dry mouth (xerostomia) · Patients receiving radiotherapy on its own or in addition to chemotherapy to the head and neck region

Chinese medicine led to lower xerostomia (dichotomous, Shenqi Fanghou recipe) compared with no treatment/placebo; 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

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

Amifostine 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 amifostine changes overall survival compared with no treatment/placebo (very low certainty).

1 finding from 1 review

Amifostine vs no treatment/placebo

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

Amifostine showed no clear difference in locoregional tumour control compared with no treatment/placebo; GRADE not reported.

1 finding from 1 review

Pilocarpine vs no treatment/placebo

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